VHF/UHF TRANSCEIVER S-14914XZ-C1 March 2013

Transcript

1 VHF/UHF TRANSCEIVER S-494XZ-C March 3

2 INTRDUCTIN This service manual describes the latest technical information for the ID-A/ID-E VHF/UHF TRANSCEIVER, at the time of publication. MDEL ID-E ID-A VERSIN SUPPLIED CHARGER EUR BC-67SD UK ITR BC-67SD USA KR EXP EXP- AUS BC-67SA BC-67SD BC-67SA BC-67SD BC-67SV To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. CAUTIN NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than the specifi ed voltage. This will ruin the transceiver. D NT reverse the polarities of the power supply when connecting the transceiver. D NT apply an RF signal of more than dbm ( mw) to the antenna connector. This could damage the transceiver s front-end. (ID-A) RDERING PARTS Be sure to include the following four points when ordering replacement parts:. -digit Icom part number. Component name 3. Equipment model name and unit name 4. Quantity required <RDER EXLE> 349 S.IC TA336FNG ID-A MAIN UNIT pieces 88 Screw 438 screw ID-E Top cover pieces Addresses are provided on the inside back cover for your convenience. REPAIR NTES. Make sure that the problem is internal before dis-assembling the transceiver.. D NT open the transceiver until the transceiver is disconnected from its power source. 3. D NT force any of the variable components. Turn them S-Lowly and smoothly. 4. D NT short any circuits or electronic parts. An insulated tuning tool MUST be used for all adjustments.. D NT keep power N for a long time when the transceiver is defective. 6. D NT transmit power into a Standard Signal Generator or a Sweep Generator. 7. ALWAYS connect a 3 db to 4 db attenuator between the transceiver and a Deviation Meter or Spectrum Analyzer, when using such test equipment. 8. READ the instructions of the test equipment thoroughly before connecting it to the transceiver. Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.

3 TABLE F CNTENTS SECTIN SPECIFICATINS SECTIN INSIDE VIEWS SECTIN 3 DISASSEMBLY INSTRUCTIN SECTIN 4 CIRCUIT DESCRIPITN 4- RECEIVER CIRCUITS TRANSMITTER CIRCUITS FREQUENCY SYNTHESIZER CIRCUITS VLTAGE BLCK DIAGRAM PRT ALLCATINS SECTIN ADJUSTMENT PRCEDURES - PREPARATIN FREQUENCY ADJUSTMENT TRANSMIT ADJUSTMENT RECEIVE ADJUSTMENT... - SECTIN 6 PARTS LIST SECTIN 7 MECHANICAL PARTS SECTIN 8 BARD LAYUTS SECTIN 9 BLCK DIAGRAM SECTIN VLTAGE DIAGRAM

4 SECTIN. SPECIFICATINS D General Frequency coverage : (unit: MHz) Version TX RX EUR, KR 44 46, , UK 44 46, *, * ITR 44 46, , ,* 44 46, , U.S.A , 43 4* * 4, * 3 EXP 37 74* 4, 4 479* 8 74* 4, * EXP , * 4, * ALL * Guaranteed MHz only * Guaranteed MHz only * 3 Guaranteed 44 4 MHz only * 4 Guaranteed MHz only * MHz for the USA version. BC Radio (AM):..7 MHz BC Radio (FM): MHz* The SUB band audio signal may be muted, depending on the combination of operating band and mode. Mode : FM, AM (Rx only), DV Number of memory channels : 4 (incl. scan edges and 4 call channels) Number of BC radio memory channels : Usable temp. range : C to +6 C; 4 F to +4 F Tuning steps :,, 6., 8.33, 9,,.,,,, 3,,, and khz * The selectable steps may differ, depending on the selected frequency band or operating mode. Frequency stability : ±. ppm ( C to +6 C; 4 F to +4 F) Power supply :. 6. V DC for external DC power, or specifi ed Icom s battery pack Digital transmission speed : 4.8 kbps Voice coding speed :.4 kbps Current drain (at 7.4 V DC) : TX (at W) Less than. A RX Max. output FM Less than 3 ma (Internal speaker) Less than ma (External speaker) DV Less than 4 ma (Internal speaker) Less than 3 ma (External speaker) Antenna connector : SMA ( Ω) Dimensions : 8(W).4(H) 6.4(D) mm; (projections not included).3(w) 4.(H).(D) in Weight (approximately) : g; 9 oz (incl. battery pack and antenna) D Transmitter Modulation system : FM Variable reactance frequency modulation DV GMSK reactance frequency modulation utput power (at 7.4 V DC) : High. W, Mid.. W, Low. W, Low. W, S-Low. W (Typical) Max. frequency deviation : ±. khz (FM wide: approx.) ±. khz (FM narrow: approx.) Spurious emissions Ext. mic. impedance D Receiver : Less than 6 dbc at High/Mid. Less than 3 dbm at Low/ Low/S-Low :. kω Receive system : Double-conversion superheterodyne Intermediate frequencies A Band : 46.3 MHz (st IF) B Band : 4 khz (nd IF) : 6.6 MHz (st IF) : 4 khz (nd IF) Sensitivity (except spurious points) FM ( khz/3. khz Deviation; db SINAD) : Less than dbµ DV (PN9/GMSK 4.8 kbps; BER %) : Less than dbµ Audio output power (at % distortion) Internal speaker : More than.4 W with a 6 Ω load External speaker : More than. W with a 8 Ω load Selectivity FM (Wide) : More than db FM (Narrow), DV : More than db Ext. speaker connector : 3-conductor 3.(d) mm; ( 8 )/8 Ω Spurious and image rejection ratio : More than 6 db Squelch Sensitivity (threshold, khz/3. khz Deviation) : Less than dbµ -

5 SECTIN. INSIDE VIEWS LGIC UNIT EEPRM (IC3) LEVEL CNVERTER (IC) DSP FLASH MEMRY (IC) MIC MUTE (IC6) DSP EEPRM (IC7) MDE (IC39) AF FILTER (IC3) AF (IC) AF (IC3) TNE FILTER (Q33) TNE FILTER (Q37) LINE REGULATR (IC) MIC (Q) CPU (IC) CLCK SCILLATR (For the CPU) (X) microsd CARD SLT (J3) CPU3 LINE REGULATR (IC9) GPS REGULATR (IC) PTT (Q) VCC LINE REGULATR (IC4) CHARGING CNTRLLER (IC8) -

6 MAIN UNIT (TP VIEW) CURRENT DETECTR (IC) PWER (Q4) APC (IC4) LINE REGULATR (IC) ATT (Q97) ATT (Q96) RF (Q78) VCC LINE (Q8) VCC LINE (Q) D/A CNVERTER (IC9) LCK VLTAGE BUFFER (Q4) PLL IC (Band B) (IC4) +4 V REGULATR (IC3) + V REGULATR (IC) PLL IC (Band A) (IC6) REFERENCE FREQUENCY SCILLATR (X) DISCRIMINATR (Band B) (X9) ND IF FILTER (Band B) (For FM and AM modes) AM DETECTR (Q94) (FI9) DISCRIMINATR (Band A) (X) ND IF FILTER (Band A) (For DV and FM-N modes) (FI) AGC DETCTR (Q93) ND IF FILTER (Band A) (For FM mode) (FI) -

7 MAIN UNIT (BTTM VIEW) DRIVE (Q4) VHF RF (Band A/B) (Q7) UHF RF (Band A/B) (Q6) VHF RF (Band A) (Q7) UHF RF (Band A) (Q6) ST IF FILTER (Band A) (FI3) UHF RF (Band B) (Q64) VHF RF (Band B) (Q74) CHARGING CNTRLLER (IC8) PS3 LINE REGULATR (IC3) +3.3 V REGULATR (IC) RADI AUDI BUFFER (IC9) ST IF FILTER (Band B) (FI88) IF IC (Band A) (IC3) ST IF (Band B) (Q9) IF IC (Band B) (IC9) RADI IC (IC44) VS LINE REGULATR (IC4) AF (IC) - 3

8 SECTIN 3. DISASSEMBLY INSTRUCTIN. REMVING THE LGIC UNIT ) Remove dials and antenna nut from the front panel. Antenna nut Remove with; ICM Driver (Q) (89637) Inner dial uter dial 4) Remove 6 screws from the LGIC UNIT. ) Unsolder 6 points at the rotary encoder. Screws x UNSLDER Solder remover ) Remove screws from the bottom of chassis. LGIC UNIT Screws Rotary encoder 3) Take out the LGIC UNIT with chassis from the front panel. LGIC UNIT with chassis 6) Separate the LGIC UNIT from the chassis, and then disconnect the flat cable from the LGIC UNIT. BE CAREFUL about the flat cable and connector when separating the LGIC UNIT from the chassis. LGIC UNIT FLAT CABLE Lift up Front panel flat cable For easy separation of the CHASSIS Use a suction lifter to lift the bottom of the CHASSIS up. Chassis Suction lifter Part name : EA9R- Manufacture : ESC C.LTD Suction lifter 3 - (Continued on page 3-)

9 . REMVING THE MAIN UNIT ) Unsolder points on the shield plate. UNSLDER 3) Unsolder a point at the antenna connector. UNSLDER Solder remover Solder remover Shield plate ) Remove screws from the shield plate, and then remove it. 4) Remove 6 screws from the MAIN UNIT, and then remove the MAIN UNIT from the chassis. Screws x6 Screws x AIN UNIT Shield plate MAIN UNIT Chassis 3 -

10 SECTIN 4. CIRCUIT DESCRIPTIN 4- RECEIVE CIRCUITS RF CIRCUITS VHF BAND (8 74 MHz) The RF signal from the antenna is passed through two s (L3, L, L6, C47, C49, C3, C and C6), ANT (D6, D93) and (L7, L76, L99, C74 and C976), and then applied to the RF (Q7). Band A (37 74 MHz) The amplifi ed signal is passed through the (D7, L73 and C7) and AGC circuit (Q49, Q, D34, D74), and then applied to the RF (Q7). The amplifi ed signal is applied to the st IF circuit, through the (D7, D73, L7, C73 to C7). Band B (8 74 MHz) The amplifi ed signal is passed through the ATT (D74), (D744, L74 and C73) and AGC circuit (Q93, D743), and then applied to the RF (Q74). The amplifi ed signal is applied to the st IF circuit, through the (D74, D74, L74, C74 to C743). UHF BAND ( MHz) The RF signal from the antenna is passed through the HPF (L, L4, C4, C48, C, C and C4), two s (L, C36, C39 and L7, C4, C6, C9), ANT (D8 and D) and (L68, L6, L6, C63, C63 and C634), and then applied to the RF (Q6). Band A The amplifi ed signal is passed through the two s (D6, L6, C6 and D66, L66, C69) and AGC circuit (Q49, Q, D34, D64), and then applied to the RF (Q6). The amplifi ed signal is applied to the st IF circuit, through the (D6, D63, L6, L63, C63 to C6, C67, C97). Band B The amplifi ed signal is passed through the (D64, D646, L644, L64, C64, C6, C68) and AGC circuit (Q93, D644), and then applied to the RF (Q64). The amplifi ed signal is applied to the st IF circuit, through the (D64, D643. L64, L64, C64 to C644, C646 and C97). RF CIRCUITS To the st IF circuit (Band A). RF -Band A:37M-74MHz- AGC 8M-74MHz Q7 RF D3,D4 D6,D93 ANT TX:36.M~74.MHz RX:8.M~74.MHz D7,D73 Q7 Q49,Q,D34 D7 D74 -Band B:8M-74MHz- From the TX circuit To the st IF circuit (Band B). RF AGC ATT D74,D74 Q74 Q93,D743 D744 D74 To the st IF circuit (Band A). RF -Band A:38M~479MHz- AGC 38M-479MHz Q6 RF D D8 D ANT TX:4.M~479.MHz RX:38.M~479.MHz HPF D6,D63 Q6 Q49,Q,D34 D6,D66 D64 -Band B:38M~479MHz- From the TX circuit To the st IF circuit (Band B). RF AGC D64,D643 Q64 Q93,D644 D64,D

11 ST IF CIRCUITS VHF BAND (8 74 MHz) Band A (37 74 MHz) The RX signal from the RF circuit is applied to the st mixer (Q8) and mixed with the st L signal, resulting in the 46.3 MHz st IF signal. The converted signal is passed through the RF (D8), st IF fi lter (FI3) and limiter (D3), and then applied to the st IF. (Q44). The amplifi ed signal is applied to the nd IF circuit, through the limiter (D). UHF BAND ( MHz) Band A The RX signal from the RF circuit is applied to the st mixer (Q8) and mixed with the st L signal, resulting in the 46.3 MHz st IF signal. The converted signal is passed through the RF (D8), st IF fi lter (FI3) and limiter (D3), and then applied to the st IF. (Q44). The amplifi ed signal is applied to the nd IF circuit, through the limiter (D). Band B (8 74 MHz) The RX signal from the RF circuit is applied to the st mixer (Q83) and mixed with the st L signal, resulting in the 6.6 MHz st IF signal. The converted signal is passed through the RF (D83), st IF fi lter (FI88) and limiter (D88), and then applied to the st IF. (Q9). The amplifi ed signal is applied to the nd IF circuit. Band B The RX signal from the RF circuit is applied to the st mixer (Q8) and mixed with the st L signal, resulting in the 6.6 MHz st IF signal. The converted signal is passed through the RF (D8), st IF fi lter (FI88) and limiter (D88), and then applied to the st IF. (Q9). The amplifi ed signal is applied to the nd IF circuit. ST IF CIRCUITS VC UNIT -Band A:46.3MHz- st L To the nd IF circuit (Band A). D LIMIT Q44 IF D3 LIMIT FI3 XTAL 46.3MHz D8,D8 RF D8,D8 Q8 From the RF circuit (Band A). A_L RF From the RF circuit (Band B). Q8 -Band B:6.6MHz- To the nd IF circuit (Band B). Q9 IF D88 LIMIT FI88 XTAL D8,D83 RF Q83 From the RF circuit (Band A). 6.6MHz B_L D8,D83 RF st L From the RF circuit (Band B). Q8 VC UNIT 4 -

12 ND IF CIRCUITS Band A The st IF signal from the st IF circuit is applied to the IF IC (IC3, pin 6), which contains the nd IF, nd mixer, FM demodulator, and so on. The st IF signal is mixed with the 4.9 MHz nd L signal, resulting in the 4 khz nd IF signal. The converted signal is passed through the external nd IF fi lter (FM mode; FI, FM-N or DV mode; FI) to remove sideband noise. The fi ltered signal is amplifi ed by the nd IF, and then demodulated by the quadrature detector (X). The demodulated signal is applied to the RX AF circuit (For FM and FM-N modes) or digital demodulation circuit (For DV mode). Band B The st IF signal from the st IF circuit is applied to the IF IC (IC9, pin 6), which contains the nd IF, nd mixer, FM demodulator, and so on. The st IF signal is mixed with the 6. MHz nd L signal, resulting in the 4 khz nd IF signal. The converted signal is passed through the external nd IF fi lter (FI9) to remove sideband noise. While receiving in the FM mode, the fi ltered signal is amplifi ed by the nd IF, and then demodulated by the quadrature detector (X9). The demodulated signal is applied to the RX AF circuit, through the AF (IC8, pins 6, ). While receiving in the AM mode, the fi ltered signal is demodulated by Q94 and amplifi ed by the AGC (Q93). The demodulated signal is applied to the RX AF circuit, through the AF (IC8, pins 7, ). ND IF CIRCUITS X.3MHz Q38 REF X3 4.9MHz FM-N/DV CERAMIC FI FM CERAMIC FI -Band A:46.3MHz- W/N Q36,D D6,D8,D9 IC3 To the RX AF circuit (Band A). FM DET From the st IF circuit (Band A). DISCRI X REF Q9 X4 Q94 AM DET FM CERAMIC 6.MHz IC8 FI9 -Band B:6.6MHz- To the RX AF circuit (Band B). MDE FM DET IC9 From the st IF circuit (Band A). DISCRI X9 4-3

13 DIGITAL DEMDULATIN CIRCUIT (LGIC UNIT) While operating in the DV mode, the demodulated signal (digital audio signal) is passed through the (R3, R336, R339, C334 and C337) and amplifi ed by the AF (IC3, pins and ). The amplifi ed signal is passed through the (Q3 and Q3) and amplifi ed by another AF (IC3, pins 3 and 4), and then applied to the A/D converter (IC9, pin 3) to be converted into the digital audio signal. The digital audio signal is demodulated by the DSP (IC8, pins M and L), and then applied to the linear codec (IC) to be decoded into an analog audio signal. The decoded AF signal is applied to the RX AF circuit. RX AF CIRCUIT (LGIC AND MAIN UNITS) Band A The demodulated AF signal is passed through the mode (IC39, pins 4 and 3) and AF fi lter (IC3, pins 9 and 8, and 7), and then applied to the D/A converter (MAIN UNIT: IC, pin 8) to be adjusted in volume level. RADI RECEIVE CIRCUITS FM BAND (76 8 MHz) The RF signal from the antenna or earphone is passed through two s (L3, L, L6, C47, C49, C3, C and C6), ANT (D6 and D93), RF (D78), ANT (D78 and D783) and (L78, L78, C783 to C786), and then applied to the RF (Q78). The amplifi ed signal is applied to the radio IC (IC44, pin ), through the ATT (D98) and limiter (D94). AM BAND (..7 MHz) The RF signal from the antenna is passed through two s (L3, L, L6, C47, C49, C3, C and C6), ANT (D6 and D93), and (L4, L43, C47 C4), and then applied to the RF (Q98). The amplifi ed signal is applied to the radio IC (IC44, pin 4), through the ATT (Q96 and Q97) and limiter (D9). The radio IC (IC44) demodulates input signals and output to the RX AF circuit. Band B The demodulated AF signal is passed through the AF fi lter (IC3, pins and, and 7) and mute (IC3, pins and ), and then applied to the D/A converter (MAIN UNIT: IC, pin ) to be adjusted in volume level. RADI RECEIVE CIRCUITS ANT The level-adjusted AF signal is amplifi ed by the buffer (MAIN UNIT: IC, pins 3 and 4), and then applied to the AF power (MAIN UNIT: IC, pin ), through the ATT (MAIN UNIT: Q). The amplifi ed AF signal is output to the internal speaker (CHASSIS: SP) or external speaker, through the [SP] jack (MAIN UNIT: J4). <- RX AF circuit IC9 BUFF IC44 RADI IC LIMIT D9 LIMIT D94 ATT Q96 Q97 ATT D98 Q98 Q78 From the TX circuit RF RF -.M-.7MHz M-8MHz - ANT D78, D783 RF D78 DIGITAL DEMDULATIN AND RX AF CIRCUITS IC39 -Band A:FM/FM-N mode- J4 [SP] jack Int. speaker V+ V- IC AF Q ATT MAIN UNIT IC BUFF IC D/A IC3,Q3 AAF AF FIL BAF Radio AF MDE DAF IC LINEAR CDEC IC8 DSP IC3 -Band A:DV mode- IC9 A/D -Band A:FM/AM mode- MUTE IC3 Q3,Q3 IC3,Q3 AF FIL IC3 BDET ADET From the nd IF circuit (Band A). From the nd IF circuit (Band B). SP CHASSIS UNIT LGIC UNIT 4-4

14 4- TRANSMIT CIRCUITS TX AF CIRCUIT (LGIC UNIT) The AF signal from the internal or external microphone (MIC signal) is applied to the audio processor LSI (IC), through the ATT (R9 and R98). The audio processor LSI contains 6-bit liner CDEC, MIC, audio fi lters, D/A converter, and so on. When operating in the DV mode The applied signal is amplifi ed by the MIC, and passed through the external MIC mute (IC6, pins 7, ), and then further amplifi ed by the ALC. The amplifi ed signal is applied to the liner CDEC, through the (R86, C74 and C77), to be encoded into a digital audio signal. MDULATIN CIRCUITS (MAIN UNIT) The MIC signal from the TX AF circuits is applied to the VHF VC (Q3, D34 D36) or UHF VC (Q7, D D) as a modulation signal. The modulation signal is applied to D to obtain GMSK (For DV mode) or Frequency Modulation (For FM mode). The modulated VC output signal is amplifi ed by the buffer (Q) and L (Q), and then applied to the TX circuits as the TX signal, through the L (D4). MDULATIN CIRCUIT The digital audio signal is processed by the DSP (IC8), and then passed through the (R and C4), mode (IC39, Q39) and (IC),and then applied to the D/A converter (IC) to be adjusted in level. The level-adjusted signal is applied to the modulation circuits. TX AF circuit -> Q3, D34,D3,D36 VHF VC Q7, D,D,D UHF VC Q BUFF Q L VC A UNIT TX circuit -> When operating in the FM/FM-N mode The amplifi ed signal is passed through the MIC mute (IC6, pins 7, ), HPF (R3, C6 and C6), (IC), (IC) and mode (IC39, pins 8, 9), and then applied to the D/A converter (IC) to be adjusted in level, through the mode (IC39, pins, ) and (IC). MAIN UNIT The level-adjusted signal is applied to the modulation circuits. TX AF CIRCUIT MAIN UNIT IC IC6 J EXTMIC MMUTE FM HPF MC ATT MIC DV ALC IC39 LINEAR DM MDE CDEC DMD D/A VCMD IC8 DSP LGIC UNIT 4 -

15 TX CIRCUITS (MAIN UNIT) The TX signal is passed through the buffer (Q48) and ATT (D, D), which controls the TX output power by the APC (IC4). The TX signal is sequentially amplifi ed by the YGR (Q39), drive (Q4) and power (Q4). While operating on the VHF band The amplifi ed TX signal is passed through the (L, C), ANT (D3 and D4), TX output power detector (D, D3) and two s (L3, L, L6, C47, C49, C3, C and C6), before being applied to the antenna. APC CIRCUITS (MAIN UNIT) The voltage produced at the s (VHF band; L3, L, L6, C47, C49, C3,C and C6, UHF band; L7, C4, C6 and C9) is rectifi ed by the diodes (VHF band; D and D3, UHF band; D and D9), and it is used as the TX power sensing voltage. The voltage is applied to the APC (IC4B, pin 6), and the output voltage controls the bias voltages of the ATT (D and D) to keep the TX output power constant. While operating on the UHF band The amplifi ed TX signal is passed through the HPF (L, L3, C7, C8, C and C), ANT (D), TX output power detectors (D and D9) and two s (L7, C4, C6, C9, and L, C36, C39) and HPF (L, L4, C4, C48, C, C and C4), before being applied to the antenna. TX AND APC CIRCUITS ANTENNA D4 Q48 D,D Q39 Q4 Q4 D D8 D TX:4.M~479.MHz RX:38.M~479.MHz L BUFF ATT YGR DRIVE PWR HPF ANT HPF D,D9 st mixer (Band A) -> IC4B PSET Q43 APC CTRL MUTE MAIN UNIT D3,D4 D6,D93 ANT PWR DET PWR DET D,D3 TX:36.M~74.MHz RX:8.M~74.MHz TXMUTE Receive circuit (UHF band) -> Receive circuit (VHF band) -> 4-6

16 4-3 FREQUENCY SYNTHESIZER CIRCUIT (MAIN UNIT) VCs The ID-A/E has total of four VCs; two VCs for band A and another two for band B. Band A VHF VC (VC UNIT) The VHF VC (Q3, D34 D36) generates both st L signal (for receiving a VHF signal on band A) and the VHF TX signal. The output of buffer (Q) is amplifi ed by the L (Q), and then used as the VHF TX/RX L signal. While receiving, the L signal is applied to the st IF mixer (Q8) for receiving a signal on the VHF band, through the RF (D8). While transmitting, the L signal is applied to the TX circuits, through the L (D4). UHF VC (VC UNIT) The UHF VC (Q7, D D) generates both st L signal (for receiving a UHF signal on band A) and the UHF TX signal. The output of buffer (Q) is amplifi ed by the L (Q), and then used as the UHF TX/RX L signal. While receiving, the L signal is applied to the st IF mixer (Q8) for receiving a signal on the UHF band, through the RF (D8). While transmitting, the L signal is applied to the TX circuits, through the L (D4). Band B VHF VC (VC UNIT) The VHF VC (Q3, D34 D36) generates the st L signal (for receiving a VHF signal on band B). The output of buffer (Q) is amplifi ed by the L (Q), and then used as the st L signal. While receiving, the L signal is applied to the st IF mixer (MAIN UNIT: Q83) for receiving a signal on the VHF band, through the RF (MAIN UNIT: D83). UHF VC (VC UNIT) The UHF VC (Q7, D D) generates st L signal (for receiving a UHF signal on band B). The output of buffer (Q) is amplifi ed by the L (Q), and then used as the UHF TX/RX L signal. While receiving, the L signal is applied to the st IF mixer (MAIN UNIT: Q8) for receiving a signal on the UHF band, through the RF (MAIN UNIT: D8). PLL Band A A portion of VHF and UHF VCs output signal is amplifi ed by two buffers (VC UNIT: Q and Q) and passed through the (VC UNIT: L, C9 to C), and then fed back to the PLL IC (IC6, pin 8). The PLL IC (IC6) phase-compares the output of reference frequency oscillator (TCX; X) and VC, and the phase difference is output as the charge pump current. The current is passed though the loop fi lter (R67, R7, R9, R93, C9, C9, C96 and C) to be converted into the lock voltage, which controls the oscillating frequency of VC. When the oscillation frequency drifts, its phase changes from that of the reference frequency, causing a lock voltage change to compensate for the drift in the VC oscillating frequency. Band B A portion of VHF and UHF VCs output signal is amplifi ed by two buffers (VC UNIT: Q and Q) and passed through the (VC UNIT: L, C9 to C), and then fed back to the PLL IC (IC6, pin 8). The PLL IC (IC6) phase-compares the output of reference frequency oscillator (TCX; X) and VC, and the phase difference is output as the charge pump current. The current is passed though the loop fi lter (R4, R44, R4, R47, C4, C47 to C46) to be converted into the lock voltage, which controls the oscillating frequency of VC. When the oscillation frequency drifts, its phase changes from that of the reference frequency, causing a lock voltage change to compensate for the drift in the VC oscillating frequency. FREQUENCY SYNTHESIZER CIRCUIT VCMD Q Q D4 VHF VC BUFF L A_LUT L TX circuit. -> REFMD X.3MHz IC6 PLL IC FIN LP FIL Q3, D34,D3,D36 Q7, D,D,D UHF VC Q BUFF VC UNIT A_L Q83 RF D8,D8 Q8 VHF st L UHF st L Q8 IC4 PLL IC LP FIL Q3,D34,D3,D36 VHF VC BUFF Q L Q B_L D8,D83 RF VHF st L UHF st L Q7,D,D,D UHF VC Q8 FIN Q VC UNIT 4-7

17 4-4 PRT ALLCATINS CPU (LGIC UNIT: IC) Pin No. Line Name Description I/ A DICK [DIAL] (outer dial) (S) phase-a I A AUNLK PLL unlock detection. (Band A) L=Unlocked. I A DALD D/A converter serial strobe. A3 KS A4 KS Key matrix strobe. A4 BLV Lock voltage. (Band B) I A REMTE* Key inputs from the external microphone. I A6 VIN External power supply voltage. I A7 A8 A9 ATNE TTEMP AUDI WX alert signal ( Hz). (Band A) TX power temperature sensing voltage. Response signal from the audio IC. B DTMF DTMF tone, european tone and beep sound signals. B DIUD [DIAL] (outer dial) (S) phase-b I B CLSFT** CPU clock frequency shift control. B3 KS Key matrix strobe. B KR Key matrix return. I B4 BRSSI RSSI voltage. (Band B) I B ALV Lock voltage. (Band A) I B7 TXI-V Transmit current sensing voltage. I B8 TEMP Charging circuit temperature sensing voltage. B9 AURES Audio IC reset. L=Reset. C DIUD [DIAL] (inner dial) (S) phase-b. I C DTCS TSQL/DTCS fi lter switching control. H= While the DTCS tone is used. C3 KS3 Key matrix strobe. C4 KR Key matrix return. I C DCIN External power supply connection detect. L= An external power supply is connected. C CTCSS CTCSS/DTCS tone signal. C4 BCTCIN *; Key input sensing voltage. **; Clock frequency shifting range. TSQL/DTCS tone signal. (Band B) Line name CLSFT CLSFT Shifting range Line state Pushed key Voltage range None of key is pushed V VX headset V [ ].78.3 V [ ].83.7 V A key.93.8 V B key V Key locked V H H. khz H L ± khz L L ±. khz I I I I I I 4-8 Pin No. Line Name Description I/ C VX VX sensing voltage. I C7 ACTCIN TSQL/DTCS tone signal. (Band A) I C9 CLSFT** Clock frequency shift control. D DATA Common serial clock to the PLL, D/A converter, expander and audio IC. D DICK [DIAL] (inner dial) (S) phase-a. I D CK Common serial clock to the PLL, D/A converter, expander and audio IC. D KR Key matrix return. I D3 BTDET Battery type detection. L= An appropriate battery pack is attached. D4 PWR [PWER] key input. L= Pushed. I D SCLK_R Radio IC serial clock. D G_RXD UART data from the internal GPS module. D4 BTNE WX alert signal (Hz). (Band B) I D BTSENC Battery type detection. I D6 BTVIN Battery voltage. I D7 ARSSI RSSI voltage. (Band A) I D8 AUSTB Audio IC serial strobe. D9 SEN_R Radio IC serial strobe. E3 RES_R Radio IC reset. L= Reset. E4 SDI_R Radio IC serial data. I/ E4 F F3 F4 F G G4 G G3 G4 G_TXD CHGC TXLED FMMUTE BLED INTMIC CHGH PCN LIGHT DIM H G_WKUP J J BR3C MMUTE UART data to the internal GPS module. Charging circuit control. H= While charging. TX LED control. H= Lights. RX AF mute control. H= While receiving in the FM/FM-N mode. Busy LED control. H= Lights. MIC line switching control. H= While the internal MIC is used. Charging current control. H= While charging using. Main power supply line control. H= Power N. LCD backlit and key backlit control. H= Light. LCD backlit and key backlit brightness control. H= Bright. GPS module wake-up control. H= Power N. Receive circuit power control. (Band B) H= While receiving on band B. MIC mute control. H= Mute. I I I

18 CPU (LGIC UNIT: IC) (continued) Pin No. Line Name Description I/ J3 IEN Expander chip enable. J DCSFT DSP clock shift control. L=+6 Hz shifted. J BPLLSTB PLL serial strobe. (Band B) J4 K RTC_IRQ ANISE K3 BAFMUTE K4 K D_AS DAFS Interrupt detection from the real time clock IC. L= Alerm detected. Noise level detection. (Band A) H= Noise signal is detected. RX AF mute control. (Band B) L= Mute. Modulation signal line (DV/FM) switching control. H= While transmitting in the DV mode. nd IF fi lter (digital/analog) switching control. H= While receiving in the DV mode. K EBUSY CI-V bus line communication status detection. I L= Busy. K3 ISTB Expander serial strobe. L L L3 L4 L L L3 R3C SQL BNISE PSC 3VC PLAY BAM R3 line control. L= While recieiving. SQL key input. L= Pushed. Noise level detection (Band B). H= Noise signal is detected. VS power supply line control. L= While in the power save mode. power supply line control. H= Power N. Modulation signal line switching control. H= Recorded audio is transmitted. AM Air band receive circuit power control. L= While receiving in the AM mode. M DASTB D/A converter serial strobe. M TX3 UART data (RS-3C). (48/96/384 bps) M4 ESI EEPRM serial data. I/ M T3C Transmit circuit power control. H= While transmitting. M CLUT CI-V/CLNE UART data. (3 384 bps) M DSP_STB DSP serial strobe. M6 DSPC DSP power control. H= DSP is N. M7 AR3C Receive circuit power control. (Band A) L=While receiving on band A. M8 LCDRS LCD driver serial data. M9 LCDCS LCD driver chip select. N N CLIN G_HIB CI-V/CLNE UART data. (3 384 bps) GPS module operating mode (Normal/Sleep) switching control. L= While in the sleep mode. I I I I I Pin No. Line Name Description I/ N ECK EEPRM serial clock. N SD_SENC microsd card insert detection. L=Inserted. N3 SD_TXD Serial data to the attached microsd card. N4 DSP_SI DSP serial data. I N6 RTC_SDA Serial data to/from the real time I/ clock IC. N7 APLLSTB PLL serial strobe. (Band A) N9 LCDDT LCD driver serial data. P P P3 P4 SD_CS GPSC RX3 INTPTT Chip select to the attached microsd card. GPS module power control. H= Power N. RS-3C UART data. (48/96 bps) [PTT] key input. L=Pushed. P SD_SCK Serial clock to the attached microsd card. P4 DSP_CK DSP serial clock. P P6 DSP_PD LCDRES DSP power down control. H= Power down. LCD driver reset. L=Reset. R SD_RXD Serial data from the attached microsd card. I R3 AFN AF power control. R4 EXTPTT External PTT input. I R DSP_S DSP serial data. R DSP reset control. DSP_RESET L=Reset. R6 RTC_SCL Serial clock to the real time clock IC. R8 LCDCK LCD driver serial clock. I I I 4-9

19 SECTIN. ADJUSTMENT PRCEDURE - PREPARATIN REQUIRED EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE Power supply Audio generator (AG) Modulation Analyzer Voltage range Current capacity Frequency range utput level Frequency range Measuring range : V : More than 3 A : 3 3 Hz : mv : 3 6 MHz : to ± khz AC millivoltmeter Measuring range : mv to V RF power meter ( Ω terminated) Measuring range :. W Frequency range : 6 MHz R : Less than. : JIG cables Attenuator Standard signal generator (SSG) Frequency counter Modifi ed 3-conductor plugs (See the illustration below) Power attenuation Capacity Frequency range utput level : 4 db : More than W :. 6 MHz : dbµ to 9 dbµ ( 7 to 7 dbm) Frequency range :. 6 MHz Frequency accuracy : ± ppm or better Input level : Less than mw JIG CABLES JIG cable # (GND) 3-conductor 3. (d) mm plug (SP) Less than 4. (d) mm (REMTE) JIG cable # (GND) 3-conductor. (d) mm plug Less than 4. (d) mm (EXTMIC) PTT 33 k 8 kω AUDI GENERATR (3 3 Hz/ mv) µf + SETTING; Frequency : khz Level : 9 mvrms Waveform : Sine wave AC MILLIVLTMETER ( mv to V) + CNNECTIN Standard signal generator to 9 dbµ ( 7 dbm to 7 dbm) FM deviation meter Attenuator 4 db to the antenna connector D NT transmit while an SSG is connected to the antenna connector. PWER SUPPLY CNNECTIN Adjustment at 3. V To the [DC IN] jack PC-4L Black: White: RF power meter. 6 W/ Ω Frequency counter Adjustment at. V or 7.4 V Be sure about the polarity To [MIC] JIG cables To [SP] DC power supply 3. V/3 A DC power supply. V or 7.4 V/3 A [DC IN] -

20 ENTERING THE ADJUSTMENT MDE ) Connect the JIG cable # to [SP]. (See page -) ) While holding down [SQL] and, turn N the power. [SQL] Connect the JIG cable # (See page -) here. Push to turn N the power. [QUICK/MENU] KEY ASSIGNMENTS FR THE ADJUSTMENT MDE Adjusts the value for the item Mode Adjustment frequency Adjustment item Adjustment value TX output power Selects the next adjustment item (without storing value) Stores the value for the item Selects the previous adjustment item QUITING THE ADJUSTMENT MDE ) Remove the JIG cable # from [SP]. ) Turn FF the power, and then turn N the power. -

21 - FREQUENCY ADJUSTMENT Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT REFERENCE FREQUENCY ADJUSTMENT ITEM [REF] PERATIN ) Set the power supply voltage to 7.4 V. ) Connect a power meter or dummy load to the antenna connector. 3) Loosely couple a frequency counter to the antenna connector. 4) While transmitting, adjust the frequency using [DIAL], and then push to store the adjustment value. VALUE Displayed frequecny (± Hz) -3 TRANSMIT ADJUSTMENT IDLING CURRENT ADJUSTMENT (at. V) Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT PERATIN ITEM DRIVE IDLING CURRENT (At. V) [ID] ) Set the power supply voltage to. V. ) Connect an RF power meter to the antenna connector. 3) Connect an ammeter between the power supply and transceiver. 4) Set the item [IP] to "." VHF While transmitting, adjust the idling current using [DIAL], and then UHF push to store the adjustment value. FINAL IDLING CURRENT ) Set the power supply voltage to. V. ) Connect an RF power meter to the antenna connector. (At. V) [IP] 3) Connect an ammeter between the power supply and transceiver. VHF While transmitting, adjust the idling current using [DIAL], and then UHF push to store the adjustment value. VALUE 7 ma 4 6 ma 8 8 ma 7 7 ma - 3

22 -3 TRANSMIT ADJUSTMENT (Continued) IDLING CURRENT ADJUSTMENT (at 7.4 V) Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT PERATIN ITEM DRIVE IDLING CURRENT (At 7.4 V) VHF (Hi power) ) Set the power supply voltage to 7.4 V. ) Connect an RF power meter to the antenna connector. 3) Connect an ammeter between the power supply and transceiver. 4) Set the item [IP7] to "." While transmitting, adjust the idling current using [DIAL], and then push to store the adjustment value. VALUE 9 ma (Mid power) ma (Low power) 4 (Low power) [ID7] (S-Low power) 6 4 ma UHF (Hi power) 7 3 ma (Mid power) 8 3 ma (Low power) 9 (Low power) (S-Low power) 3 ma FINAL IDLING CURRENT (At 7.4 V) VHF (Hi power) (Low power) [IP7] (S-Low power) 6 UHF 7 (Hi power) ) Set the power supply voltage to 7.4 V. ) Connect an RF power meter to the antenna connector. 3) Connect an ammeter between the power supply and transceiver. While transmitting, adjust the idling current using [DIAL], and then push to store the adjustment value. 8 9 ma (Mid power) 3 4 ma (Low power) 4 ma ma (Mid power) ma (Low power) 9 (Low power) (S-Low power) NTE: When "IDLING CURRENT" is adjusted, "TRANSMIT PWER" must be alos re-adjusted. 4 4 ma - 4

23 -3 TRANSMIT ADJUSTMENT (Continued) IDLING CURRENT ADJUSTMENT (at 3. V) Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT DRIVE IDLING CURRENT (At 3. V) VHF (Hi power) ADJUSTMENT ITEM (Low power) [ID] (S-Low power) 6 UHF 7 (Hi power) PERATIN ) Set the power supply voltage to 3. V. (supplying from [DC IN]) ) Connect an RF power meter to the antenna connector. 3) Connect an ammeter between the power supply and transceiver. 4) Set the item [IP] to "." While transmitting, adjust the idling current using [DIAL], and then push to store the adjustment value. VALUE ma (Mid power) 3 9 ma (Low power) 4 8 ma 9 ma (Mid power) 8 8 ma (Low power) 9 (Low power) (S-Low power) FINAL IDLING CURRENT (At 3. V) VHF (Hi power) (Low power) [IP] (S-Low power) 6 UHF 7 (Hi power) ) Set the power supply voltage to 3. V. (supplying from [DC IN]) ) Connect an RF power meter to the antenna connector. 3) Connect an ammeter between the power supply and transceiver. While transmitting, adjust the idling current using [DIAL], and then push to store the adjustment value. 7 9 ma 6 ma (Mid power) ma (Low power) 4 ma 6 ma (Mid power) ma (Low power) 9 (Low power) (S-Low power) NTE: When "IDLING CURRENT" is adjusted, "TRANSMIT PWER" must be also re-adjusted. ma -

24 -3 TRANSMIT ADJUSTMENT (Continued) TRANSMIT PWER ADJUSTMENT (at. V) Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT TRANSMIT PWER -VHF- (BAND LW) ADJUSTMENT ITEM (BAND HIGH) [P] 3 -UHF- 4 (BAND LW) PERATIN ) Set the power supply voltage to. V. ) Connect an RF power meter to the antenna connector. 3) While transmitting, adjust the TX power using [DIAL], and then push to store the adjustment value. (BAND HIGH) NTE: When "IDLING CURRENT" is adjusted, "TRANSMIT PWER" must be also re-adjusted. VALUE 8 mw TRANSMIT PWER ADJUSTMENT (at 7.4 V) Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT ITEM PERATIN TRANSMIT PWER ) Set the power supply voltage to 7.4 V. ) Connect an RF power meter to the antenna connector. -VHF- (Hi power) [BAND LW] [BAND HIGH] 3 -UHF- 4 (Hi power) [BAND LW] [BAND HIGH] -VHF- 6 (Mid power) [BAND LW] [BAND HIGH] 7 -UHF- 8 (Mid power) [BAND LW] [BAND HIGH] 9 -VHF- (Low power) [BAND LW] [BAND HIGH] -UHF- (Low power) [BAND LW] [BAND HIGH] 3 -VHF- 4 (Low power) [BAND LW] [BAND HIGH] -UHF- 6 (Low power) [BAND LW] [BAND HIGH] 7 -VHF- 8 (S-Low power) [BAND LW] [BAND HIGH] 9 -UHF- (S-Low power) [BAND LW] [BAND HIGH] While transmitting, adjust the TX power using [DIAL], and then push to store the adjustment value. VALUE 4.8. W.3.7 W.9. W.4.6 W 8 mw - 6

25 -3 TRANSMIT ADJUSTMENT (Continued) TRANSMIT PWER ADJUSTMENT (at 3. V) Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT TRANSMIT PWER -VHF- (Hi power) [BAND LW] ADJUSTMENT ITEM [BAND HIGH] 3 -UHF- 4 (Hi power) [BAND LW] [BAND HIGH] -VHF- 6 (Mid power) [BAND LW] [BAND HIGH] 7 -UHF- 8 (Mid power) [BAND LW] [BAND HIGH] 9 -VHF- (Low power) [BAND LW] [BAND HIGH] [P] -UHF- (Low power) [BAND LW] [BAND HIGH] 3 -VHF- 4 (Low power) [BAND LW] [BAND HIGH] -UHF- 6 (Low power) [BAND LW] [BAND HIGH] 7 -VHF- 8 (S-Low power) [BAND LW] [BAND HIGH] 9 -UHF- (S-Low power) [BAND LW] [BAND HIGH] PERATIN ) Set the power supply voltage to 3. V. (supplying from [DC IN]) ) Connect an RF power meter to the antenna connector. While transmitting, adjust the TX power using [DIAL], and then push to store the adjustment value. VALUE 4.8. W.3.7 W.9. W.4.6 W 8 mw - 7

26 -3 TRANSMIT ADJUSTMENT (Continued) DEVIATIN ADJUSTMENTS Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT FM DEVIATIN -VHF- [FM (BAND LW)] [FM-N (BAND LW)] [FM (BAND HIGH)] [FM-N (BAND HIGH)] -UHF- [FM (BAND LW)] [FM-N (BAND LW)] [FM (BAND HIGH)] [FM-N (BAND HIGH)] ADJUSTMENT ITEM [MFL] [MNL] [MFH] [MNH] [MFL] [MNL] [MFH] [MNH] PERATIN ) Set the power supply voltage to 7.4 V. ) Connect a modulation analyzer to the antenna connector through an attenuator, and set it as; HPF : FF : khz De-emphasis : FF Detector : (P-P)/ 3) Connect an audio generator to the JIG cable (See page -). VALUE ) Set the audio generator as; ±4. to ±4.3 Frequency : khz khz 3 Level : 9 mvrms ±. to ±. ) While transmitting, adjust the deviation using [DIAL], and then khz 4 push to store the adjustment value. ±4. to ±4.3 khz ±. to ±. khz 6 ±4. to ±4.3 khz 7 ±. to ±. khz 8 ±4. to ±4.3 khz 9 ±. to ±. khz REFERENCE ) Set the audio generator as; SIGNAL Level : mvrms (FF) DEVIATIN [BFL] ) While transmitting, adjust the deviation using [DIAL], and then -VHFpush to store the adjustment value. [FM (BAND LW)] [FM-N (BAND LW)] [BNL] [FM (BAND HIGH)] [BFH] 3 [FM-N (BAND HIGH)] [BNH] 4 -UHF- [BFL] [FM (BAND LW)] [FM-N (BAND LW)] [BNL] 6 [FM (BAND HIGH)] [BFH] 7 [FM-N (BAND HIGH)] [BNH] 8 DV DEVIATIN ) Set the power supply voltage to 7.4 V. ) Connect a modulation analyzer to the antenna connector through an attenuator, and then set it as; HPF : FF : khz De-emphasis : FF Detector : (P-P)/ 3) No audio signal is applied. -VHF- While transmitting, adjust the deviation using [DIAL], and then [BAND LW] push to store the adjustment value. [BAND CENTER] 3 [BAND HIGH] 4 [DVV] -UHF- [BAND LW] [BAND CENTER] 6 [BAND HIGH] 7 Minimum deviation ±.9 to ±. khz - 8

27 -3 TRANSMIT ADJUSTMENT (Continued) DEVIATIN ADJUSTMENTS (Continued) Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT ITEM PERATIN DV BALANCE ) Set the power supply voltage to 7.4 V. ) Connect a modulation analyzer to the antenna connector through an attenuator, and then set it as; HPF : FF : khz De-emphasis : FF Detector : (P-P)/ 3) No audio signal is applied. -VHF- While transmitting, adjust the deviation using [DIAL], and then [BAND LW] push to store the adjustment value. [BAND CENTER] 3 [BAND HIGH] 4 [DVR] -UHF- [BAND LW] [BAND CENTER] 6 [BAND HIGH] 7 VALUE Minimum deviation - 9

28 -3 TRANSMIT ADJUSTMENT (Continued) TNE DEVIATIN ADJUSTMENTS Select an adjustment item using /, and then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT TNE DEVIATIN -VHF- [DTCS] (FM) (FM-N) [CTCSS] (FM) (FM-N) [DTMF] (FM) ADJUSTMENT ITEM [MDT] [MCT] PERATIN ) Set the power supply voltage to 7.4 V. ) Connect a modulation analyzer to the antenna connector through an attenuator, and then set it as; HPF : FF : khz De-emphasis : FF Detector : (P-P)/ 3) No audio signal is applied. While transmitting, adjust the deviation using [DIAL], and then push to store the adjustment value. VALUE ±.7 to ±.8 khz ±.3 to ±.4 khz 3 ±.7 to ±.8 khz ±.3 to ±.4 khz 4 ±3.4 to ±3.6 khz (FM-N) [MDM] ±.6 to ±.8 khz [EUR TNE] (FM) ±3.4 to ±3.6 khz (FM-N) [MET] ±.6 to ±.8 khz -UHF- [DTCS] (FM) 6 ±.7 to ±.8 khz [MDT] (FM-N) 7 ±.3 to ±.4 khz [CTCSS] (FM) 8 ±.7 to ±.8 khz (FM-N) [MCT] 9 ±.3 to ±.4 khz [DTMF] (FM) ±3.4 to ±3.6 khz (FM-N) [MDM] ±.6 to ±.8 khz [EUR TNE] (FM) ±3.4 to ±3.6 khz (FM-N) [MET] 3 ±.6 to ±.8 khz -

29 -3 TRANSMIT ADJUSTMENT (Continued) -4 RECEIVE ADJUSTMENTS ) Select an adjustment item (band) using /. ) Set the SSG as specifi ed (frequency, deviation and output level), and then push to automatically adjust. ADJUSTMENT RECEIVE SENSITIVITY [A-BAND] ADJUSTMENT ITEM PERATIN VALUE NTE: RECEIVE SENSITIVITY must be adjusted before S-METER. therwise, S-METER will not be adjusted properly. ) Set the power supply voltage to 7.4 V. ) Connect an SSG to the antenna connector, and then set it as; Frequency : (Displayed on the function display) Level : dbµ ( 7 dbm) (37. MHz) [VTL] (4. MHz) [VTM] 3 (73.98 MHz) [VTH] 4 Modulation : khz Deviation : 3. khz (38. MHz) [UTL] (43. MHz) [UTM] 6 ( MHz) [UTH] 7 [AIR BAND] ) Set the power supply voltage to 7.4 V. (8. MHz) [ATL] ) Connect an SSG to the antenna connector, and then set it as; Frequency : (Displayed on the function display) (7. MHz) [ATM] 3 Level : dbµ ( 7 dbm) (36.9 MHz) [ATH] 4 Modulation : khz Deviation : 3% (AM) [B-BAND] ) Set the power supply voltage to 7.4 V. (37. MHz) [VTL] ) Connect an SSG to the antenna connector, and then set it as; Frequency : (Displayed on the function display) (4. MHz) [VTM] Level : dbµ ( 7 dbm) (73.98 MHz) [VTH] 3 Modulation : khz Deviation : 3. khz (38. MHz) [UTL] 4 (43. MHz) [UTM] ( MHz) [UTH] 6 S-METER [BC BAND] Push. (Automatic adjustment) Push. (Automatic adjustment) Push. (Automatic adjustment) NTE: RECEIVE SENSITIVITY must be adjusted before S-METER and S-METER S3 LEVEL. therwise, S-METER and S-METER S3 LEVEL will not be adjusted properly. ) Set the power supply voltage to 7.4 V. ) Connect an SSG to the antenna connector and set it as; Modulation : khz Deviation : 3% (AM) (AM S level) Set the SSG as; [BS] Frequency : (Displayed on the function display) Level : + dbµ ( dbm) (AM S3 level) 3 Set the SSG as; [BS3] Level : + dbµ ( dbm) (AM Full scale) 4 Set the SSG as; [BSF] Frequency : (Displayed on the function display) Level : + dbµ ( 9 dbm) (WFM S level) Set the SSG as; [BS] Frequency : (Displayed on the function display) Level : + dbµ ( dbm) (WFM S3 level) 6 Set the SSG as; [BS3] Frequency : (Displayed on the function display) Level : + dbµ ( dbm) (WFM Full scale) 7 Set the SSG as; [BSF] Frequency : (Displayed on the function display) Level : + dbµ ( 9 dbm) ; This output level of a standard signal generator (SSG) is indicated as SSG s open circuit. Push. (Automatic adjustment) -

30 -3 TRANSMIT ADJUSTMENT (Continued) -4 RECEIVE ADJUSTMENTS (Continued) ) Select an adjustment item (band) using /. ) Set the SSG as specifi ed (frequency, deviation and output level), and then push to automatically adjust. ADJUSTMENT S-METER [A-BAND] (VHF S level) (VHF S3 level) (VHF Full scale) ADJUSTMENT ITEM - PERATIN VALUE NTE: RECEIVE SENSITIVITY must be adjusted before S-METER and S-METER S3 LEVEL. therwise, S-METER and S-METER S3 LEVEL will not be adjusted properly. [VS] [VS3] [VSF] ) Set the power supply voltage to 7.4 V. ) Connect an SSG to the antenna connector and set it as; Modulation : khz Deviation : 3. khz Set the SSG as; Frequency : (Displayed on the function display) Level : dbµ ( 7 dbm) 3 Set the SSG as; Frequency : (Displayed on the function display) Level : 6 dbµ ( 3 dbm) 4 Set the SSG as; Level : + dbµ ( 97 dbm) Push. (Automatic adjustment) (UHF S level) Set the SSG as; [US] Frequency : (Displayed on the function display) Level : dbµ ( 7 dbm) (UHF S3 level) 6 Set the SSG as; [US3] Frequency : (Displayed on the function display) Level : 6 dbµ ( 3 dbm) (UHF Full scale) 7 Set the SSG as; [USF] Frequency : (Displayed on the function display) Level : + dbµ ( 97 dbm) S-METER [AIR BAND] NTE: RECEIVE SENSITIVITY must be adjusted before S-METER and S-METER S3 LEVEL. therwise, S-METER and S-METER S3 LEVEL will not be adjusted properly. ) Set the power supply voltage to 7.4 V. ) Connect an SSG to the antenna connector and set it as; Modulation : khz Deviation : 3% (AM) (AIR S level) Set the SSG as; [AS] Frequency : (Displayed on the function display) (AIR S3 level) 3 Set the SSG as; Level : dbµ ( 7 dbm) [AS3] Frequency : (Displayed on the function display) Push. (Automatic Level : 6 dbµ ( 3 dbm) adjustment) (AIR Full scale) 4 Set the SSG as; [ASF] Frequency : (Displayed on the function display) Level : + dbµ ( 97 dbm) S-METER [B BAND] ) Set the power supply voltage to 7.4 V. ) Connect an SSG to the antenna connector, and then set it as; Frequency : (Displayed on the function display) Modulation : khz Deviation : 3. khz (VHF S level) Set the SSG as; [VS] Frequency : (Displayed on the function display) Level : dbµ ( 7 dbm) (VHF S3 level) 3 Set the SSG as; [VS3] Frequency : (Displayed on the function display) Level : 6 dbµ ( 3 dbm) (VHF Full scale) 4 Set the SSG as; [VSF] Frequency : (Displayed on the function display) Level : + dbµ ( 97 dbm) Push. (Automatic (UHF S level) Set the SSG as; adjustment) [US] Frequency : (Displayed on the function display) Level : dbµ ( 7 dbm) (UHF S3 level) 6 Set the SSG as; [US3] Frequency : (Displayed on the function display) Level : 6 dbµ ( 3 dbm) (UHF Full scale) 7 Set the SSG as; [USF] Frequency : (Displayed on the function display) Level : + dbµ ( 97 dbm) ; This output level of a standard signal generator (SSG) is indicated as SSG s open circuit.

31 -3 TRANSMIT ADJUSTMENT (Continued) -4 RECEIVE ADJUSTMENTS (Continued) ) Select an adjustment item (band) using /. ) Set the SSG as specifi ed (frequency, deviation and output level), and then push to automatically adjust. ADJUSTMENT ADJUSTMENT ITEM PERATIN SQUELCH ) Set the power supply voltage to 7.4 V. ) Connect an SSG to the antenna connector and set as; Modulation : khz [BC BAND] Set the SSG as; -. MHz- Frequency : (Displayed on the function display) [ASQ] Level : 3 dbµ ( dbm) Deviation : 3% (AM) -87. MHz- 3 Set the SSG as; [WSQ] Frequency : (Displayed on the function display) Level : 3 dbµ ( dbm) Deviation :. khz [A BAND] Set the SSG as; -VHF- Frequency : (Displayed on the function display) FM mode [VSQ] Level : FF FM-N mode -UHF- 3 FM mode [USQ] FM-N mode 4 [AIR BAND] [ASQ] ) Set the power supply voltage to 7.4 V. ) Connect an SSG to the antenna connector and set as; Frequency : (Displayed on the function display) Level : 6 dbµ ( 33 dbm) Modulation : khz Deviation : 3% (AM) [B BAND] [VSQ] Set the SSG as; -VHF- Frequency : (Displayed on the function display) -UHF- Level : dbµ ( 3 dbm) [USQ] 3 Deviation : 3. khz ; This output level of a standard signal generator (SSG) is indicated as SSG s open circuit. VALUE Push. (Automatic adjustment) - 3

32 SECTIN 6. PARTS LIST [MAIN UNIT] REF PARTS H/V N. N. DESCRIPTIN M. LCATIN IC 76 S.IC TPADGNR B 89./3.7 IC3 84 S.REG XC6A4NR-G T 49.3/.6 IC S.DC TPS6RSAR B 84./.7 IC 638 S.IC LM94PWR T.7/.3 IC6 367 S.IC MBE3SV-G-ER-6E T 3.4/33.3 IC S.IC BQ43 B 6./43. IC 7 S.IC RA78NP B 74.3/7.4 IC 7 S.IC TA7SF(TE8RF) T 4.7/4.8 IC3 73 S.IC NJM9V-TE-#ZZZB B 67.4/33.7 IC4 638 S.IC LM94PWR T.7/36.6 IC 8346 S.REG NJM83F-TE-#ZZZB T.9/47. IC6 649 S.IC LMV3IDCKR B 77./38. IC7 839 S.REG XC6D4MR-G T 88.8/3. IC S.IC TC7W3FK(TE8LF) B 7.3/.3 IC 649 S.IC LMV3IDCKR B 8.8/8.4 IC44 8 S.IC SI473-D6-GMR <MAC> B 83./3.7 IC4 367 S.IC MBE3SV-G-ER-6E T 4.7/4.8 IC9 73 S.IC NJM9V-TE-#ZZZB B 7.8/. IC S.IC RA69SA T 33.9/.8 IC S.IC CD494BPWR B 69./. IC9 649 S.IC LMV3IDCKR B 77./3.4 Q 94 S.TRA LDTC44TETG <SLVJ> T 3.7/.4 Q 4 S.FET TPCF87(TE8LF) T 4.9/.7 Q3 94 S.TRA LDTC44TETG <SLVJ> T 33.6/.9 Q8 4 S.FET TPCF87(TE8LF) T 3./. Q 94 S.TRA LDTA44EETG <SLVJ> T 66.6/4.4 Q 947 S.TRA LDTC44EETG <SLVJ> T 68.9/4. Q 3399 S.TRA SC4738-BL(TE8LF) T 3./6.9 Q7 S.TRA SA83-GR(TE8RF) T 4./. Q9 947 S.TRA LDTC44EETG <SLVJ> T 7.4/. Q 673 S.FET RUEN TL B 86./8.9 Q6 64 S.FET SK88-Y(TRICMF) T 3.8/4.8 Q S.TRA DRA94TL B 64.3/6.7 Q37 S.TRA SA83-GR(TE8RF) T 37.8/3. Q S.TRA SC4738-BL(TE8LF) T 63.9/3.6 Q S.TRA MT3S9TU(TE8L) B 8.7/4.4 Q S.TRA SC4738-BL(TE8LF) B 6./8. Q4 67 S.FET RFMU7P(TELF) B./38.3 Q S.TRA LDTC44EETG <SLVJ> B 9./8.7 Q44 39 S.TRA SC46-T Y (R) B 7.7/3.9 Q4 67 S.FET RFMU7X(TLICMQ) T 8./3. Q S.TRA SC6-T T 34.9/8. Q S.TRA SC4738-BL(TE8LF) B 3./8.4 Q 3399 S.TRA SC4738-BL(TE8LF) B 7.8/8.4 Q 3399 S.TRA SC4738-BL(TE8LF) T 8.4/8.6 Q4 64 S.FET SK88-Y(TRICMF) T 4./7.4 Q S.TRA DMA6R T 44./. Q S.TRA DMA6R T 46./8. Q47 9 S.FET QS6JTR T 49.7/8.6 Q 9433 S.TRA DRC94EL T./9.8 Q 9433 S.TRA DRC94EL T 4.9/9.9 Q3 94 S.TRA DMA64R T 3./.4 Q4 94 S.TRA DRC94TL B./. Q6 883 S.FET BB6CFS-TL-E B 4./9. Q6 883 S.FET BB6CFS-TL-E B 7.9/. Q S.FET BB6CFS-TL-E B 46.9/7. Q7 883 S.FET BB6CFS-TL-E B 36.7/8.8 Q7 883 S.FET BB6CFS-TL-E B.3/.6 Q S.FET BB6CFS-TL-E B 46./. Q S.TRA SC6-T T 4.3/9.9 Q8 883 S.FET BB6CFS-TL-E B 46.9/6.4 Q8 883 S.FET BB6CFS-TL-E B 4./.4 Q8 883 S.FET BB6CFS-TL-E B 39.9/9. Q S.FET BB6CFS-TL-E B 7.9/7.7 Q8 946 S.TRA DMA6R B 64.9/7. Q8 946 S.TRA DMA6R B 64./.3 Q8 946 S.TRA DMA6R B 64./4.7 Q83 S.TRA SA83-GR(TE8RF) T 83.4/.6 Q S.TRA DRA94TL T./8. Q9 336 S.TRA SC6-T T 6.7/. Q9 39 S.TRA SC46-T Y (R) B 66.7/9.8 Q9 943 S.TRA DRA94TL T 8.4/3. Q S.TRA DMC6R T 8./. Q S.TRA DMC6R T 79.3/.4 Q S.FET RUEN TL T.3/3. Q S.FET RUEN TL T.3/. Q S.TRA SC4738-BL(TE8LF) T 7.8/. D 77 S.DI DBS34L T 9.6/.3 D3 78 S.DI LSS4TG <SLVJ> T 6.7/4. D4 769 S.DI RBLA-4 T 6.7/44. D S.ZEN DZJ33ML T 6./.8 D4 79 S.DI HVD44AKRF-E T 39./3. D 79 S.DI HVD44AKRF-E B 67.3/8. D6 79 S.DI HVD44AKRF-E B 68.3/8. D7 78 S.DI LSS4TG <SLVJ> T 3.6/9.4 D8 79 S.DI HVD44AKRF-E T 69./34.6 D9 79 S.DI HVD44AKRF-E T 7./34.6 D 79 S.DI RKP3KJ T 3.9/3. D 79 S.DI RKP3KJ T.4/34.8 D 78 S.DI LRB76F-4TG <SLVJ> B 6.3/36. D3 78 S.DI LRB76F-4TG <SLVJ> B./3.9 D34 7 S.DI DASL B.7/7.3 D S.VAR AVR-MC7MTAAB T 7./3.9 D 78 S.DI SV37(TPH3F) B 3./9.9 [MAIN UNIT] REF PARTS H/V N. N. DESCRIPTIN M. LCATIN D 78 S.DI HVU87TRF-E B.4/9.9 D3 79 S.DI HVD44AKRF-E T.9/. D4 79 S.DI HVD44AKRF-E T 4.8/. D 78 S.DI LRB76F-4TG <SLVJ> B 8.9/.4 D6 79 S.DI HVD44AKRF-E B./3.4 D8 79 S.DI HVD44AKRF-E B 7.3/.9 D9 78 S.DI LRB76F-4TG <SLVJ> B 6.3/. D 79 S.DI HVD44AKRF-E B 7.3/.8 D 78 S.DI HVU87TRF-E B./3. D 78 S.DI LRB76F-4TG <SLVJ> B./8.8 D3 78 S.DI LRB76F-4TG <SLVJ> B.6/9. D6 777 S.VAR HVC376BTRF-E B 49.7/.9 D S.VAR HVC376BTRF-E B 46./. D64 7 S.DI DASL B 4.4/. D6 77 S.VAR HVC37BTRF-E B 4.9/.3 D66 77 S.VAR HVC37BTRF-E B 37./.3 D S.VAR HVC376BTRF-E B 3./7.9 D S.VAR HVC376BTRF-E B./7.8 D644 7 S.DI DASL B 46.6/. D64 77 S.VAR HVC37BTRF-E B 4.8/.6 D S.VAR HVC37BTRF-E B 39.6/.6 D7 777 S.VAR HVC376BTRF-E B 36.7/7. D S.VAR HVC376BTRF-E B 36.6/4.3 D74 7 S.DI DASL B 36./3.9 D7 777 S.VAR HVC376BTRF-E B 3.3/. D S.VAR HVC376BTRF-E B.8/. D S.VAR HVC376BTRF-E B./8. D743 7 S.DI DASL B 44.8/. D S.VAR HVC376BTRF-E B 3.8/9.3 D74 79 S.DI HVD44AKRF-E T 8.8/9. D78 79 S.DI HVD44AKRF-E B.7/. D78 79 S.DI HVD44AKRF-E T 8./.4 D S.DI HVD44AKRF-E T 3./34.6 D8 79 S.DI HVD44AKRF-E B 43.9/3.7 D8 79 S.DI HVD44AKRF-E T 43.4/8.3 D8 79 S.DI HVD44AKRF-E B 7.9/. D8 79 S.DI HVD44AKRF-E T 6./8. D8 79 S.DI HVD44AKRF-E B 4./3. D8 79 S.DI HVD44AKRF-E T 4.3/8.3 D83 79 S.DI HVD44AKRF-E B 9.7/6. D83 79 S.DI HVD44AKRF-E T 6.9/9.8 D88 78 S.DI LRB76F-4TG <SLVJ> B 64.9/. D9 7 S.DI DASL B 66.8/.7 D93 79 S.DI HVD44AKRF-E B./3.4 D94 78 S.DI LRB76F-4TG <SLVJ> T 3.3/6. D9 78 S.DI LRB76F-4TG <SLVJ> T 3.9/.9 D S.VAR VC638A4RP B 6.7/44.9 D98 79 S.DI HVD44AKRF-E T 9./6.7 D S.VAR VC638A4RP B 49.4/44.4 FI 8 S.CER CFWKA4KHFA-R T 69./.7 FI 48 S.CER LTWC4E <JJE> T 78./.7 FI3 386 S.MN MFT46.3M 46.3 MHz (FL-439) B 49./33.7 FI88 37 S.MN MFT6.6M 6.6 MHz (FL-49) B 9.9/8.8 FI9 48 S.CER LTWC4E <JJE> T 7.6/. X 683 S.XTA CR-87 TTS4VSB-A3.3 MHz T 63./6.4 X 673 S.DIS JTBM4CX7 <JJE> T 64.8/3. X9 673 S.DIS JTBM4CX7 <JJE> T 69./7. L 647 S.CI LQMHPNRMJL B 8.3/.3 L 6447 S.CI LQH44PNMPL B 87.3/8.3 L3 647 S.CI LQMHPNRMJL B 83./. L S.CI LQH44PNMPL B 4.4/43. L 6396 S.CI MLF68A RK-T T 63./8. L 634 S.CI MLF68D RK-T T 6.6/3. L S.CI MLF68D R8K-T T 6./36.6 L4 66 S.CI LQW8AN68NGD B 6.3/39.8 L S.CI LQWBHN47NJ3L B 4.4/3.8 L9 64 S.CI MLF68D R33K-T B 9.3/33.9 L 68 S.CI.4-.-TL N <CM> T 3./6.3 L S.CI ELJRE 6NGFA T 33./8. L S.CI MLKSNJT T./34. L S.CI MLKSNJT T./33.6 L S.CI MLKSNST T 9./36.3 L S.CI MLKS8NJT B./4.9 L S.CI MLF68A 3R9K-T T 6.4/.6 L S.CI MLF68A 3R9K-T T.4/6. L 63 S.CI.3-.9-TL.3N <CM> T 4./4.9 L 64 S.CI.4-.8-TL.J <CM> T 3.9/3.6 L3 639 S.CI.6-.-TR 6N <CM> T 4.3/.3 L4 69 S.CI LQW8ANRGD (LQW68ARG) T 3./8.8 L 6448 S.CI MLF68D R8K-T T 7.8/.7 L6 69 S.CI LQW8AN6NGD T 7.8/. L7 64 S.CI.3-.-TR 6.N <CM> B.4/6.7 L8 697 S.CI LQW8AN8NGD (LQW68A8NG) B 7.9/6.7 L 668 S.CI.3-.3-TL N <CM> B 4./4. L 698 S.CI.4-.4-TR 8.3N <CM> B 4./9. L3 63 S.CI.-.9-7TL 6N <CM> T 4.6/9. L4 673 S.CI TR.N <CM> B./9.8 L 6 S.CI.-.9-8TL 7.N <CM> T 8.9/8. L6 69 S.CI TL 4.N <CM> T 9.9/4. L6 67 S.CI LQW8ANNGD B.9/.9 Eqv.= This component is equivalent to the REF No. component listed above, and M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side) may be substituted on parts orders and repairs. S.=Surface mount 6-