SERVICE MANUAL VHF/UHF FM TRANSCEIVER VHF/UHF DIGITAL TRANSCEIVER

Transcript

1 SERVIE MANUAL VHF/UHF FM TRANSEIVER VHF/UHF DIGITAL TRANSEIVER S-0HZ- May. 00

2 INTRODUTION This service manual describes the latest service information for the I-9A VHF/UHF FM TRANSEIVER, I-9AD VHF/UHF DIGITAL TRANSEIVER at the time of publication. MODEL VERSION SYMOL I-9AD U.S.A. USA Export EXP U.S.A. USA- Taiwan TPE I-9A Korea KOR Australia AUS Export EXP- EXP- To upgrade quality, all electrical or mechanical parts and internal circuits are subject to change without notice or obligation. AUTION NEVER connect the transceiver to an A outlet or to a D power supply. V. Such a connection could cause a fire or electric hazard. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when connecting the transceiver. DO NOT apply an signal of more than 0 dm (00 mw) to the antenna connector. This could damage the transceiver's front end. ORDERING PARTS e sure to include the following four points when ordering replacement parts:. 0-digit Icom parts number. omponent name and informations. Equipment model name and unit name. Quantity required <SLE ORDER> LD HLM I-9A Main unit pieces Screw PH T M ZK I-9A hassis 0 pieces Addresses are provided on the inside back cover for your convenience. REPAIR NOTES. Make sure the problem is internal before disassembling the transceiver.. DO NOT open the transceiver until the transceiver is disconnected from its power source.. DO NOT force any of the variable components. Turn them slowly and smoothly.. DO NOT short any circuits or electronic parts. An insulated turning tool MUST be used for all adjustments.. DO NOT keep power ON for a long time when the transceiver is defective.. DO NOT transmit power into a signal generator or a sweep generator.. ALWAYS connect a 0 d to 0 d attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment.. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver. Icom, Icom Inc. and logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.

3 TALE OF ONTENTS SETION SPEIFIATIONS SETION INSIDE VIEWS SETION DISASSEMLY INSTRUTIONS SETION UT- UNINSTALLATION SETION IRUIT DESRIPITON - REEIVER IRUITS TRANSMITTER IRUITS PLL IRUITS OTHER IRUITS POWER SUPPLY IRUITS PORT ALLOATION SETION ADJUSTMENT PROEDURES - PREPARATION FREQUENY AND TRANSMIT ADJUSTMENT SETION PARTS LIST SETION MEHANIAL PARTS AND DISASSEMLY SETION 9 SEMIONDUTOR INFORMATION SETION 0 OARD LAYOUTS 0- LOGI UNIT MAIN UNIT UNIT UT- (Optional product; ODE UNIT for I-9AD) VO UNIT SETION SETION LOK DIAGRAM VOLTAGE DIAGRAMS - LOGI UNIT MAIN UNIT UNIT VO UNIT UT- (Optional product; ODE UNIT for I-9AD)

4 SETION SPEIFIATIONS GENERAL Frequency coverange : Operating mode : FM, AM*, WFM*, DV (*RX only) Memory channels : 0 channels (Incl. 00 scan edges and call ch.) Frequency stability : ±. ppm ( 0 to +0 ; F to 0 F) Tuning steps : /. /. /9 /0/.//0/ /0/0/00/ and 00 khz Antenna impedance : 0 Ω (SMA type) Power supply : V D for external D power, or specifi ed Icom s battery pack Digital transmission speed :. kbps Voice coding speed :. kbps urrent drain (at. V D) : TRANSMIT VHF High. A typ. Low 0. A (approx.) UHF High. A typ. Low 0. A (approx.) REEIVE Stand-by 0 ma typ. (dualwatch; FM/DV ) Max. audio 0 ma typ. (dualwatch; FM/DV ) Operating temp. range : 0 to +0 ; F to 0 F Dimensions (projections not included) Weight (approx.) :. (W) 0 (H). (D) mm 9 / (W) / (H) / (D) in : 00 g; 0. oz (antenna, P- included) TRANSMITTER Output power (at. V D) :.0 W (High) 0. W (Low; aprrox.) Modulation system FM : Variable reactance frequency modulation DV GMSK reactance frequency modulation Maximum deviation : ±.0 khz (FM wide: approx.) ±. khz (FM narrow: approx.) Spurious emissions : Less than 0 d Ext. mic. connector : -conductor. (d) mm; ( /0 )/ kω REEIVER Receiving system : FM/AM/DV Double-conversion superheterodyne system WFM Triple-conversion superheterodyne system Intermediate frequencies : st A band band./9. MHz (WFM). MHz nd 0 khz/. MHz (WFM) rd.9 MHz (WFM only) Sensitivity : (except spurious points) Selectivity : FM (Wide), AM FM (Narrow), DV WFM Spurious image rejection : Audio output power (at. V D) Ext. speaker connector VHF UHF More than 0 d More than d More than 00 khz/ d Less than 00 khz/ 0 d More than 0 d More than 0 d (IF; More than 0 d) : More than 00 mw (at 0% distortion with an Ω load) : -conductor. (d) mm; ( / )/ Ω Available for the I-9AD or when UT- is installed into the I-9A. All stated specifi cations are subject to change without notice or obligation. -

5 SETION INSIDE VIEWS LOGI UNIT Reference frequency oscillator (X: R-) RS- interface (I: MAXIPWR) PU (I: HDFRTFV) Reset I (I00: R0H0D) AF power amplifier (I0: NJM00M) AL amplifier (I00: ANMS) D/A converter (I0: MFP) UT- (Optional Product ; ODE UNIT for I-9AD) (TOP VIEW) GMSK modem I (I0: MX9AD) AME audio codec I (I0: AME-00) Linear codec I (I0: ADARSZ) UT- (Optional Product ; ODE UNIT for I-9AD) (OTTOM VIEW) lock oscillator for I0 (X00: R-) lock oscillator for I0 / I0 (X00: R-0) MAIN UNIT (TOP VIEW) MAIN UNIT (OTTOM VIEW) Mode switch (I00: D0) nd IF filters (FI00, FI00: FW0E) A_AND FM IF I (I00: TAFNG) _AND FM IF I (I00: TAFNG) A_AND nd IF filter (FI: SFEV.MAS) _AND st IF filter (FI0: FL-) A_AND PLL I (I00: ME0SLPFV) UNIT (TOP VIEW) UNIT (OTTOM VIEW) AP amplifier (I0: NJM0) TX power amplifier (Q00: RD0MUS) VO UNIT A_AND st IF mixer (I900: µpt) D switch Q000: HAT0 D000: MAS D00: R00 -

6 SETION DISASSEMLY INSTRUTIONS Removing the rear panel Unscrew screws A and remove the plate. Remove the ODE unit (UT-) if installed. (See the page - for uninstallation) Unscrew screws and screws D. Disconnect the flat cable E from MAIN unit J0. Remove the rear panel. A Removing the unit Unsolder points A. Unsolder points and remove the shield plate. Unscrew screws D and remove the unit from the rear panel D D unit J0 ODE unit (UT-) Rear panel D Rear panel A E A Removing the LOGI unit Unsolder points A. Unscrew screws and remove the LOGI unit from the front panel. LOGI unit Removing the MAIN unit Unscrew the screw A and screws. Unsolder points. Remove the MAIN unit from the rear panel in the direction of the arrow. A A MAIN unit Rear panel Front panel -

7 SETION UT- UNINSTALLATION REOMMENDATION: ritical technique is necessary for the UT- uninstallation, therefore, we recommend you to uninstall it at your dealer or service center. q Turn the power OFF, and remove the battery pack. w Unscrew screws to remove the unit cover. screws Unit cover e Insert the tweezers into the notches of the UT-, and remove it as shown below. Tweezers Notches (Top view) UT- r Screw screws to assemble the unit cover. screws Unit cover -

8 SETION IRUIT DESRIPTION - REEIVER IRUITS This transceiver has two receiving lines called A_AND and _ AND for dualwatch capability. A_AND corresponds to FM/WFM/ AM mode receiving within MHz range, and _AND corresponds to FM/FM-N/AM/DV mode receiving within MHz and 0 0 MHz ranges. -- IRUITS ( UNIT) This transceiver has six circuits to provide wide receiving range. The received signals from the antenna connector (HASSIS; J) are applied to each circuit for the frequency coverage, and amplified within the frequency coverage. While receiving 0.9 MHz The received signals of MHz and below are passed through the low-pass filter (LPF; L00, L0, 0 0) via the two LPFs (L L, ; L L, 0 ), attenuator (D0) and band switch (D00). The MHz band signals are passed through the band switch (D0), then applied to the amplifier (Q00) via the low-pass filter (L0, L0, 0 09). The 0 MHz band signals are applied to the tuned amplifier (Q0, D, D) via the band switch (D0). The amplified signals are applied to the A_AND st mixer (I900, pin ) via the band switches (D0 or D, D0) MHz - to the A_AND st mixer (I900, pin ) D0 D Q00 D0 amp MHz LPF D0 D0 Tuned amplifier D Q0 D LPFs LPF 0.9- MHz LPF D00 from the antenna D0 ATT - MHz or 0 MHz - D0 to the A_AND st mixer (I900, pin ) to the A_AND st mixer (I900, pin ) D09 D0 D0 HPF -0 MHz D0 D00 LPF - MHz D D0 D to the _AND st mixer (MAIN UNIT; I0, pin ) Q0 D ATT D0 ATT HPF LPF D0, D0 Q00 D0 Tuned amplifier Tuned amplifier D0, D0 Q0 D0 Tuned amplifier D, D Q0 D0 D0 ATT LPF from the antenna While receiving MHz The MHz band signals are passed through the two LPFs (L L, ; L L, 0 ) and attenuator (D0), then applied to the amplifier (Q00) via the band switch (D00) and bandpass filter (; L00, L0, 00, 0). The amplified signals are applied to the tuned amplifiers for A_ AND (Q0, D0 D0) and _AND (Q0, D0 D). The amplified signals by Q0 are then applied to the A_AND st mixer (I900, pin ) via the band switches (D0, D09). The amplified signals by Q0 are then applied to the _AND st mixer (MAIN UNIT; I0, pin ) via the band switch (D) and J00 (pin ). - MHz - Q00 amp. from the antenna LPFs LPF - MHz D00 0- MHz While receiving MHz or 0 MHz The MHz band signals are passed through the two LPFs (L L, ; L L, 0 ), attenuator (D0) and low-pass filter (L00, L0, 0 0) via the band switch (D00). The 0 MHz band signals are passed through the LPF (L L, ), HPF (L, 9), attenuator (D) and high-pass filter (HPF; L0, L0, 0 0) via the band switch (D0). The filtered signals are applied to the tuned amplifier (Q00, Q0, D0, D0, D0) via the band switch (D0/D0). The amplified signals are applied to the A_AND st mixer (I900, pin ) via the band switches (D, D0). While receiving 0 0 MHz or 0 00 MHz The 0 0 MHz and 0 00 MHz band signals passed through the LPF (L L, ) and HPF (L, 9), then applied to the tuned amplifier (Q00, Q0, D0, D0, D0) via the attenuator (D) and band switch (D00). The amplified signals are applied to the A_AND st mixer (I900, pin ) via the band switches (D0, D09) MHz or 0 00 MHz - D00 D ATT HPF LPF from the antenna D09 D0 0-0 MHz, 0-00 MHz Q0 D0, D0 Q00 D0 to the A_AND st mixer (I900, pin ) Tuned amplifier -

9 While receiving 0 0 MHz The 0 0 MHz band signals are passed through the LPF (L L, ), HPF (L, 9) and attenuator (D), then applied to the amplifier (Q00) via the band switch (D00) and HPF (L00, L0, L0, L, 00 0, 0,, ). The amplified signals are applied to the tuned amplifiers for A_AND (Q0, D0, D0, D0, D0) and _AND (Q, D0, D, D, D). The amplified signals by Q0 are then applied to the A_AND st mixer (I900, pin ) via the band switch (D0). The amplified signals by Q are then applied to the _AND st mixer (MAIN UNIT; I0, pin ) via the band switch (D) and J00 (pin ) MHz - to the A_AND Tuned amplifier st mixer (I900, pin ) D0, D0 Q0 D0, D0 D0 D to the _AND st mixer (MAIN UNIT; I0, pin ) While receiving MHz The MHz band signals are passed through the HPF (L, L9, ) and band switch (D00), then applied to the tuned amplifier (Q00, Q0, D0 D0) via the attenuator (D0). The amplified signals are applied to the A_AND st mixer (I900, pin ) via the band switch (D0) MHz - to the A_AND st mixer (I900, pin ) Tuned amplifier D, D Q D0, D D0 D0 ATT D00 Q MHz Q0 D0, D0 Q00 Tuned amplifier D ATT amp. HPF D0 HPF from the antenna 0-0 MHz HPF D00 -- ST IF IRUITS ( AND MAIN UNITS) The st IF circuits contain the st mixer, st IF amplifier and the st IF filter. The st IF mixer converts the received signals into a fixed frequency of the st Intermediate Frequency (IF) signal. The converted st IF signal is filtered at the st IF filters and amplified at the IF amplifier. A_AND ( MHz) The received signals from the circuits are applied to the A_ AND st IF mixer ( UNIT; I900, pin ), and converted into the. MHz (FM/AM)/9. MHz (WFM) st IF signal by being mixed with st Local Oscillator (LO) signals from the VOs (VO UNIT). LPF from the antenna While receiving MHz band signals, the st LO signals are generated at UHF AND VO (VO UNIT; Q0, D0, D0). If the receiving frequency is 00 MHz or higher, the VO output signal is doubled at the doubler circuit ( UNIT; Q0) before being applied to the st mixer ( UNIT; I900, pin ). In FM/AM mode, the converted IF signal is applied to the st IF filter (MAIN UNIT; FI) via the mode switch (D) to filter out the unwanted signals, then applied to the IF amplifier (MAIN UNIT; Q00). In WFM mode, the converted IF signal is applied to the st IF amplifier (MAIN UNIT; Q) via the mode switch (D). The amplified st IF signal is applied to the nd IF mixer (MAIN UNIT; Q), and converted into the. MHz IF signal by being mixed with the.9 MHz Lo signal. The converted IF signal is passed through the IF filter (MAIN UNIT; FI) to filter out the unwanted signal, then applied to the IF amplifier (MAIN UNIT; Q00). The amplified st or nd IF signal from the IF amplifier (MAIN UNIT; Q00) is then applied to the A_AND IF I (MAIN UNIT; I00, pin ). A_AND st IF IRUIT Q00 IF amp. st/nd IF signal to the IF I (I00, pin ) D _AND ( MHz, 0 0 MHz.) The received signals from the circuits are applied to the _AND st IF mixer (MAIN UNIT; I0, pin ), and converted into the. MHz st IF signal by being mixed with st Local Oscillator (LO) signals from the VOs. While receiving MHz band signals, the st LO signals are generated at _AND VVO (MAIN UNIT; Q0, D00, D0), and for receiving 0 0 MHz band signals, the st LO signals are generated at _AND UVO (MAIN UNIT; Q, D0, D). The converted st IF signal is passed through the st IF filter (MAIN UNIT; FI0) to filter out the unwanted signal, then applied to the st IF amplifier (MAIN UNIT; Q00). The amplified st IF signal is then applied to the _AND IF I (MAIN UNIT; I00, pin ). _AND st IF IRUIT st IF signal to the IF I (I00, pin ) Q00 IF amp. FI. MHz (WFM). MHz (FM/AM) FI Q. MHz FI0 D Q IF amp. LO signals from the VOs st mixer I900 Received signals from the circuits UNIT MAIN UNIT LO signal from the TXO (X0) via Q0, Q st mixer I0 LO signals from the VOs Received signals from the circuits MAIN UNIT While receiving 0.9 MHz band signals, the st LO signals are generated at AND VO (VO UNIT; Q, D, D, D, D), and for receiving 0 MHz band signals, the st LO signals are generated at VHF AND VO (VO UNIT; Q, D, D). -

10 -- ND IF AND DEMODULATOR IRUITS (MAIN UNIT) The st IF signal is converted into the nd IF signal and demodulated in the IF I. The IF I contains nd mixer, limiter amplifier, quadrature detector, etc. in its package. --- ND IF IRUITS - A_AND ( MHz) - FM/AM mode The st IF signal from the IF amplifier (Q00) is applied to the nd mixer in the A_AND IF I (I00, pin ), and converted into the 0 khz nd IF signal by being mixed with the. MHz nd LO signal from the reference frequency oscillator (X0) quadrupled by the quadruplicater (Q). The converted nd IF signal is output from pin, and passed through the nd IF filter (FI00) via the mode switch (D0) to suppress sideband noise. In FM mode, the filtered nd IF signal is applied to the limiter amplifier (I00, pin ) via the mode switch (D0). In AM mode, the filtered nd IF signal is applied to the IF amplifier (Q0) via the mode switch (D0). WFM mode The nd IF signal from the IF amplifier (Q00) is applied to the rd mixer in the A_AND IF I (I00, pin ), and converted into the.9 MHz rd IF signal by being mixed with the. MHz nd LO signal from the reference frequency oscillator (X0). The converted IF signal is output from pin, and applied to the limiter amplifier (I00, pin ) via the mode switches (D0, D0). --- DEMODULATOR IRUITS FM/WFM mode The amplified IF signal from the limiter amplifier in the IF I is FM-demodulated at the quadrature detector (I00, pins, 0,, X00) and output from pin 9. The demodulated AF signals are applied to the AF amplifier circuits. AM mode The amplified IF signal from the IF amplifier (Q0) is applied to the AM demodulator (Q0, Q0). The demodulated AF signals are applied to the AF amplifier circuits. - _AND ( MHz, 0 0 MHz) - The st IF signal from the st IF amplifier (Q00) is applied to the nd mixer in the _AND IF I (I00, pin ), and converted into the nd IF signal by being mixed with the nd LO signal from the reference frequency oscillator (X0) tripled by the tripler (Q). The converted nd IF signal is output from pin, and passed through the nd IF filter (FM/AM mode: FI00; FM-N mode: FI0) via the mode switch (D0) to suppress sideband noise. FM/FM-N mode The filtered nd IF signal is applied to the limiter amplifier in the _AND IF I (I00, pin ) via the mode switch (D0). The amplified nd IF signal is FM-demodulated at the quadrature detector (I00, pins, 0,, X00) and output from pin 9. The demodulated AF signals are applied to the AF amplifier circuits. AM mode The nd IF signal is passed through the FI00 and applied to the AM demodulator circuit (Q0, Q0) via the IF amplifier (Q0). The demodulated AF signals are applied to the AF amplifier circuits. A_AND ND IF AND DEMODULATOR IRUITS nd IF signal to the AM demodulator (Q0, Q0) Q0 (FM/AM) D0 FI00 D0 R./. MHz nd LO signal D0 X Q Q0 TXO X0 Noise Amplifier Noise Detector Quadrature Detector Limitter Amplifier RSSI FM-demodulated signals to the AF amplifier circuits 9 0 X00 L0 MAINRA (+V) Mode switch Q0, Q0 A_AND IF I (I00) st IF signal from the IF amplifier (Q00) ANOIS signal to the PU (LOGI UNIT; I, pin ) S-LV signal to the PU (LOGI UNIT; I, pin ) -

11 _AND ND IF AND DEMODULATOR IRUITS nd IF signal to the AM demodulator (Q0, Q0) Q0 (FM/AM) D0 D0 FI00 FI0 (FM-N).9 MHz nd LO signal X Q Q0 TXO X0 Noise Amplifier Noise Detector Quadrature Detector Limitter Amplifier RSSI FM-demodulated signals to the AF circuits 9 0 MAINR (+V) X00 _AND IF I (I00) st IF signal from the st IF amplifier (Q00) NOIS signal to the PU (LOGI UNIT; I, pin ) RSSI signal to the PU (LOGI UNIT; I, pin ) Mode switch Q0 W/N -- AF LIFIER IRUITS (MAIN AND LOGI UNITS) The demodulated AF signals from the demodulator circuits are amplified and filtered in AF amplifier circuits. - A_AND - FM/WFM mode The demodulated AF signals from the A_AND IF I (MAIN UNIT; I00, pin 9) are applied to the mode switch (MAIN UNIT; I00, pins, ) and then passed through the AF filter (MAIN UNIT; Q0, Q). AM mode The demodulated AF signals from the AM-demodulator circuit (MAIN UNIT; Q0, Q0) are applied to the AF switch (MAIN UNIT; D0) and then passed through the AF filter (MAIN UNIT; Q0, Q). - _AND - FM/FM-N mode The demodulated AF signals from the _AND IF I (MAIN UNIT; I00, pin 9) are applied to the mode switches (MAIN UNIT; I00, pins 0,, I00, pins, 0) and then passed through the AF filter circuit (MAIN UNIT; I0 pins, ;, ). AM mode The demodulated AF signals from the AM-demodulator circuit (MAIN UNIT; Q0, Q0) are applied to the AF (MAIN UNIT; D0) and mode switches (MAIN UNIT; I00, pins 0, ) and then passed through the AF filter (MAIN UNIT; I0 pins, ;, ). The filtered AF signals are applied to the D/A converter (LOGI UNIT; I0 for A_AND; pins, ;, /for _AND; pins ) and level adjusted. The level adjusted AF signals are applied to the AF power amplifier (LOGI UNIT; I0, pin ). The power amplified AF signals are then output from pin, and applied to the internal speaker (HASSIS; SP) via [SP] connector (MAIN UNIT; J00). -- AG IRUIT (MAIN AND UNITS) A portion of the AM-demodulated signals are converted into D voltage by AG (Automatic Gain ontrol) detector (MAIN UNIT; Q0; A_AND/Q0; _AND), and fed back to the IF and circuits as the AG signal. AF IRUITS from the AM demodulator circuit (Q0, Q0) from the A_AND IF I (I00, pin 9) from the _AND IF I (I00, pin 9) I00 0 FM/AM Q0 AF filter WFM MAIN UNIT Q AF filter LOGI UNIT I0 D/A converter I0 AF power amp. Speaker from the AM demodulator circuit (Q0, Q0) I00 I0 0 AF filter [SP] jack -

12 The AG signal controls the bias of the IF amplifiers (MAIN UNIT; Q00, Q0/Q00, Q0) and amplifiers ( UNIT; Q00, Q0, Q00, Q0, Q0, Q00, Q0, Q0/Q00, Q0, Q0, Q) according to the received signal strength to prevent audio distortion and stabilize the demodulated AF signal level. -- SQUELH IRUITS (MAIN AND LOGI UNITS) NOISE SQUELH The noise squelch mutes the AF output signals when no signals are received. y detecting noise components in the demodulated AF signals, the squelch circuit toggles the AF power amplifier ON and OFF. A portion of the FM-demodulated AF signals from the IF I (MAIN UNIT; I00/I00 (A_AND/_AND), pin 9) is passed through the noise filter (MAIN UNIT; I00/I00, pins,, R09 R, /R R, ). The filtered noise signals are then applied to the noise amplifier in the IF I to be amplified the noise components only. The amplified noise components are converted into the pulsetype signal at the noise detector section, and output from pin as the noise signal (A_AND: ANOIS /_AND: NOIS ). The noise signal is applied to the PU (LOGI UNIT; I, pin /), then the PU outputs AFON signal from pin 9 according to the noise detection signal level to toggle the AF power amplifier regulator (LOGI UNIT; Q0, Q0) ON and OFF. TONE SQUELH The tone squelch detects the tone signal in the demodulated AF signals, and opens the squelch only when matched subaudible tone frequency is detected in the received signal. While the tone squelch is in use, and the received signal contains no sub-audible tone signal or mismatched tone frequency, the tone squelch mutes the AF signals even if the noise squelch is open. A portion of the demodulated AF signals from the IF I (MAIN UNIT; I00/I00, pin 9) are passed through the two-staged TSS/DTS filter (MAIN UNIT; I0/I0, pins, and pins, ) via the mode switch (MAIN UNIT; I00, pins, /0, ) to suppress unwanted voice signals. The filtered TSS/DTS signals (A_AND: ATONE /_AND: TONE ) are applied to the PU (LOGI UNIT; I, pin 9/) via the tone selector (MAIN UNIT; I0, pins, /0, ). The PU decodes the TSS/DTS signal, and outputs AFON signal from pin 9 according to the set TSS/DTS signal to toggle the AF power regulator (LOGI UNIT; Q0, Q0) ON and OFF. - TRANSMITTER IRUITS -- MIROPHONE LIFIER IRUIT (LOGI UNIT) The microphone amplifier circuit contains AF amplifier, ID, splatter filter, etc. The AF signals from the microphone (thereafter, it is called MI signals ) are filtered and level-adjusted at this circuit. MI signals from the microphone (M00) are applied to the MI amplifier (Q0), then the amplified MI signals are applied to the mode switch (I0, pin ). In FM mode, the MI signals are output from pin and applied to the ID (Instantaneous Deviation ontrol; I0, pin ). In DV mode, the MI signals are output from pin and applied to the ID (I0, pin ) via the AL amplifier (I00, pins, ). The ID limits the level of the amplitude of MI signals to prevent over deviation. The limited MI signals are output from pin and passed through the splatter filter (I0, pins, 9). The splatter filter suppresses khz and higher audio components. The filtered MI signals are applied to the D/A converter (I0, pin ) via the mode switch (I0, pins 0, ). The D/A converter (I0) adjusts the deviation according to DATA signal from the PU (I, pin 0). The level adjusted MI signals are output from pin and then applied to the modulation circuit (VO UNIT; D or D00) to modulate the VO oscillating signal. MIROPHONE LIFIER IRUIT Microphone Q0 I0 MI Mode switch ID I00 AL DV mode* onry I0 0 I0 9 SPLATTER I0 D/A converter to the VO -- MODULATION IRUIT (VO UNIT) The modulation circuit modulates the VO oscillating signal with the AF signals from the microphone and the tone signals from the PU. MIROPHONE SIGNALS The level adjusted MI signals from the D/A converter (LOGI UNIT; I0, pin ) are applied to the D (in transmitting on MHz band) or D00 (in transmitting on 0 MHz band) to modulate the VO oscillating signal by changing the reactance of D or D00. The modulated VO output signal is buffer-amplified by Q00 and Q0, then applied to the transmit amplifiers via TX/RX switch ( UNIT; D00) and amplifier ( UNIT; I00, pins, ), as a transmit signal. TONE SIGNALS The TSS and DTS signals are generated by the PU (LOGI UNIT; I) and output from pin. The TSS/DTS signals are passed through the tone filter (Q0, R R0, 9, 0). The filtered tone signals are mixed with the MI signal coving from the ID amplifier (LOGI UNIT; I0 pin ), then applied to the modulation circuit via the the splatter filter, mode switch and D/A converter. The TSS/DTS signals are passed through the tone filter (Q0, R R0, 9, 0). The filtered tone signals are mixed with the MI signals come from the ID amplifier (LOGI UNIT; I0, pin ), then applied to the modulation circuit (D or D00) via the splatter filter (LOGI UNIT; I0, pins 9, ), mode switch (LOGI UNIT; I0, pins, 0) and D/A converter (LOGI UNIT; I0, pins, ). -- TRANSMIT LIFIERS ( UNIT) The VO output signal is amplified to transmit output power level by the transmit amplifiers. The VO output signal from the amplifier (I00) is applied to the pre-driver (Q0), driver (Q0) and power (Q00) amplifiers in sequence to be amplified to the transmit output power level. The power amplified transmit signal is passed through the antenna switching circuit and transmit filters. Available for I-9AD or when the optional UT- is installed into I-9A. -

13 -- AP IRUIT ( UNIT) The AP (Automatic Power ontrol) circuit stabilizes transmit output power and controls it High or Low. The AP of this transceiver is a current monitoring type that detects the transmit signal current of the transmit amplifiers and controls the transmit output power. While transmitting, the voltagedrop in R is detected by the current detection circuit (Q0) and applied to the AP controller (I0, pin ). Also, PSET signal (power setting reference voltage) from the D/A converter (I90, pin 9) is applied to another input (pin ). Then the voltage difference between pins and is output from pin, and the transmit output power is controlled by varying of the gate voltage of the power amplifier (Q00). When the transmit output power is set to Low, the driver gate voltage DSET is controlled at the same time as the power setting reference voltage PSET and the dynamic range of the power control is ensured. Thus, the AP circuit maintains a constant transmit output power. AP IRUIT from the pre-driver (Q0) DSET PSET R urrent detection Q0 I0 AP controller Q0 Driver amp. Q00 Power amp. to the transmit filters -- TRANSMIT FILTERS ( UNIT) The power amplified transmit signal from the power amplifier is filtered at the transmit filters. The transmit filters prevent unwanted signals being emitted to the air. While transmitting in MHz band, the power amplified transmit signal is passed through the LPF (L0, L0, 0, 0), antenna switch (D) and two LPFs (L L, 0 ; L L, ) before being applied to the antenna connector (HASSIS; J). MHz from the power amplifier (Q00) LPF D ANT LPF LPF to the antenna While transmitting in 0 MHz band, the power amplified transmit signal is passed through the HPF (L00, L0, 00 0), antenna switch (D, D), HPF (L, 9) and LPF (L L, ) before being applied to the antenna connector (HASSIS; J). 0 MHz from the power amplifier (Q00) HPF D, D ANT HPF LPF to the antenna - PLL IRUITS -- VO IRUITS (VO UNIT AND MAIN UNIT) This transceiver has VOs; AND VO, VHF AND VO, UHF AND VO, _AND VVO and _AND UVO. The AND VO, _AND VVO and _AND UVO oscillate the st LO signals. The VHF AND VO and UHF AND VO oscillate both transmit output signal and st LO signals. - A_AND - AND VO The AND VO (VO UNIT; Q, D, D, D, D) generates the st LO signals for receiving 0.9 MHz signals. The output signals are amplified at the buffer amplifiers (VO UNIT; Q00, Q0), then applied to the st mixer ( UNIT; I900, pin ) via TX/RX switch ( UNIT; D0). VHF AND VO The VHF AND VO (VO UNIT; Q, D, D, D) generates both of transmit output signal for MHz band and st LO signals for receiving 0 MHz. While receiving, the VO oscillates the st LO frequency, and the output signals are amplified at the buffer amplifiers (VO UNIT; Q00, Q0). The buffer-amplified signals are applied to the st mixer ( UNIT; I900, pin ) via TX/RX switch ( UNIT; D0). While transmitting, the VO oscillates the transmit frequency, and the output signal is amplified at the buffer amplifiers (VO UNIT; Q00, Q0). The buffer-amplified signals are applied to the transmit amplifiers via TX/RX switch ( UNIT; D00). UHF AND VO The UHF AND VO (Q0, D00, D0, D0) generates both of the transmit output signal for 0 MHz band and st LO signals for receiving MHz. While receiving, the VO oscillates the st LO frequency, and the output signals are amplified by the buffer amplifiers (VO UNIT; Q00, Q0). If the receiving frequency is 00 MHz and below, the buffer-amplified signals are applied to the st mixer ( UNIT; I900, pin ) via TX/RX switch ( UNIT; D0). If the receiving frequency is 00 MHz and higher, the buffer-amplified signals are applied to the doubler circuit ( UNIT; Q0), then the doubled signals are applied to the st mixer ( UNIT; I900, pin ). While transmitting, the VO oscillates the transmit frequency, and the output signal is amplified at the buffer amplifiers (VO UNIT; Q00, Q0), then applied to the transmit amplifiers via TX/RX switch ( UNIT; D00). A portion of the VO output signals generated at /VHF/UHF AND VO are applied to the PLL I ( UNIT; I00, pin ) via buffer amplifiers (VO UNIT; Q00, Q0) for comparison signal. - _AND - VVO The VVO (MAIN UNIT; Q0, D00, D0) generates the st LO signals for receiving MHz signals. The output signals are amplified at the buffer amplifier (MAIN UNIT; Q), then applied to the st mixer (MAIN UNIT; I0, pin ). UVO The UVO (MAIN UNIT; Q, D0, D) generates the st LO signals for receiving 0 0 MHz signals. The output signals are amplified at the buffer amplifier (MAIN UNIT; Q), then applied to the st mixer (MAIN UNIT; I0, pin ). A portion of the VO output signals generated at VVO/UVO are applied to the PLL I (MAIN UNIT; I00, pin ) via buffer amplifier (MAIN UNIT; Q) for comparison signal. -

14 -- PLL IRUITS ( AND MAIN UNITS) The PLL circuit provides stable oscillation of the transmit frequency and receive st LO frequency. The PLL circuit compares the phase of the divided VO frequency with the reference frequency. The PLL output frequency is controlled by the divided ratio (N-data) from the PU. A_AND PLL IRUIT The buffer amplified signals from the buffer amplifier (VO UNIT; Q0) are applied to the PLL I ( UNIT; I00, pin ). The applied signals are divided at the prescaler and OS counter according to the PLLDATA signal from the PU (LOGI UNIT; I, pin 9). The divided signal is phasecompared with the reference frequency at the phase detector. The phase difference is output from pin as a pulse type signal after being passed through the internal charge pump. The output signal is applied to the /VHF/UHF AND VOs (VO UNIT) after being converted into the D voltage (lock voltage) at the loop filter ( UNIT; 0, R0 R0). The lock voltage for AND VO ( LV ) from the loop filter is applied to the VO (VO UNIT) via R and pin of J00 ( UNIT). The lock voltage for VHF AND VO ( VLV ) from the loop filter is applied to the VO (VO UNIT) via R and pin of J00 ( UNIT). The lock voltage for UHF AND VO ( ULV ) from the loop filter is applied to the VO (VO UNIT) via pin of J00 ( UNIT). A_AND PLL AND VO IRUITS VO OARD AND VO UHF AND VO Q0,D00,D0,D0 uffer amp. LO amp. Q0 LOOUT Doubler D00 I00 transmit signal to the transmit amplifiers Q,D,D,D,D VHF AND VO Q,D,D,D Q00 uffer amp. Q0 PLLOUT Q0 D0 st LO signals to the st mixer (I900, pin ) ULV LV VLV PLL I (I00) R R Loop filter harge Phase OS Pre- Pump Detector ounter scaler UNLK signal to the PU (LOGI UNIT; I, pin 9) 9 Reference ounter Input Register 0 K PLLDATA APLLST PLL I control signals from the PU (LOGI UNIT; I) Reference frequency signal. MHz from the TXO (MAIN UNIT; X0) UNIT -

15 _AND PLL IRUIT The buffer amplified signals from the buffer amplifier (MAIN UNIT; Q) are applied to the PLL I (MAIN UNIT; I00, pin ). The applied signals are divided at the prescaler and OS counter according to the PLLDATA signal from the PU (LOGI UNIT; I, pin 9). The divided signal is phasecompared with the reference frequency at the phase detector. The phase difference is output from pin as a pulse type signal after being passed through the charge pump. The output signal is applied to the _AND VVO/UVO (MAIN UNIT) after being converted into the D voltage (lock voltage) at the loop filter (MAIN UNIT; R0 R0, 0, ). The lock voltage from the loop filter is applied to each VO. If the oscillated signal drifts, its phase changes from that of the reference frequency, causing a lock voltage change to compensate for the drift in the oscillated frequency. _AND PLL AND VO IRUITS VVO Q0,D00,D0 UVO uffer amp. Q st LO signals to the st mixer (I0, pin ) Q,D0,D PLL I (I00).9 MHz nd LO signal./. MHz nd LO signal Loop filter PS signal to the PU (LOGI UNIT; I, pin 9). MHz REF signal to the PLL I ( UNIT; I00, pin ) D0 Q Q harge Phase OS Pre- Pump Detector ounter scaler uffer amp. Q0 Reference ounter Input Register TXO X0. MHz 9 0 K PLLDATA PLST PLL I control signals from the PU (LOGI UNIT; I) MAIN UNIT - DIGITAL IRUITS -- LINER ODE (UT-; ODE UNIT for I-9AD) I0 is a liner codec I which converts transmitting AF signals from the LOGI unit into digital signals, and outputs them to the audio codec I (I0) as -bit audio data. I0 also converts the -bit audio data from the audio codec I (I0) into analog signals, and outputs them to the LOGI unit as the receiving AF signals. -- AUDIO ODE (UT-; ODE UNIT for I-9AD) I0 is an AME audio codec I. While receiving, digital signals from the LOGI unit are expansion decoded in I0, and output to the liner codec I (I0). While transmitting, -bit audio data from the liner codec I (I0) are compression coded in I0, and output to the LOGI unit. -- MODEM (UT-; ODE UNIT for I-9AD) I0 is a GMSK modem I. While receiving, demodulated AF signals from the MAIN unit are output to the LOGI unit as digital signals synchronized with clock signal. While transmitting, digital signals from the LOGI unit are converted into GMSK base-band signal, and output to the LOGI unit. -

16 - POWER SUPPLY IRUITS (LOGI UNIT) Line HV +PU +V R Description The same voltage as the connected external power supply thrugh the external D IN jack ( UNIT; J000). The same voltage as the attached battery pack passed through the D switch ( UNIT; Q000, D000, D00). The voltage is applied to the drive amplifi er ( UNIT; Q0), power amplifier ( UNIT; Q00) and LED driver (LOGI UNIT; Q0, Q0). ommon V converted from line at the PU regulator (LOGI UNIT; I00). The converted voltage is applied to the PU (I), EEPROM (I), etc. ommon V converted from +PU line at the +V regulator (Q00, Q0, D00). The converted voltage is applied to the PLL I ( UNIT; I00), D/A converters (MAIN UNIT; I0, I0), etc. Rceive V controlled by R regulator (Q0, Q0) using R signal from the expand I (MAIN UNIT; I0, pin ), controlled by strobe signal "IOST" from the PU (LOGI UNIT; I, pin ). The voltage is applied to the circuits ( UNIT). Transmit V controlled by T regulator (Q0 Q) using TX signal from the PU (I, pin 99). T The controlled voltage is applied to the AP amplifier (I0), pre-driver (Q0), etc. ommon V converted from line at the VOV VOV regulator (Q00, Q0, D00, D0). The voltage is applied to the VO regulators. Rceive V controlled by VO regulator ( UNIT; Q0) using VO" signal from the expander ( UNIT; I9, pin ), controlled by VO IOST signal from the PU (I, pin 9). The controlled voltage is applied to the AND VO (VO UNIT; Q, D, D, D). ommon V controlled by VVO regulator (Q00) using VAVO signal from the expander (I9, pin ), controlled by the IOST from the VVO PU (LOGI UNIT; I, pin 9). The controlled voltage is applied to the VHF AND VO (VO UNIT; Q, D, D, D). ommon V controlled by VVO regulator (Q00) using UAVO signal from the expander (I9, pin ), controlled by the IOST from the UVO PU (LOGI UNIT; I, pin 9). The controlled voltage is applied to the UHF AND VO (VO UNIT; Q0, D00, D0, D0). ommon. V boosted at the D-D up-converter (I0, D0). +.V The boosted voltage is applied to the PLL I ( UNIT; I00), PLL I (MAIN UNIT; I00), reference oscilator (X0), etc. - PU PORT ALLOATION Pin No. Port Name Description LED Outputs TX/RX indicator (DS0) control signal to the TX/RX LED driver (Q0). High =While the squelch is open. LIGHT Outputs backlight control signal to the backlight LEDs driver (Q0). High =While backlight is ON. KR0 KR Input ports for keypad. POWER Input port for [PWR] key (S). Low =When the key is pushed. 9 ATT Outputs power supply line select signal to the D switch (I0, Q). 0 ESIO I/O port for data signal from the EEPROM (I). EK Outputs clock signal to the EEPROM (I). KS0 KS Input ports for keypad. PTT Input port for [PTT] key (MAIN UNIT; S0). High =While the key is pushed. SQL Input port for [SQL] key (MAIN UNIT; S00). Low =While the key is pushed., DIK, DIUD Input ports for [DIAL] (MAIN UNIT; S0). ANOIS Input port for noise signal from the A_AND IF I (MAIN UNIT; I00). DTS Outputs tone filter passband control signal to the tone filter (R R0, ) switch (Q0). High =During mode operation. NOIS Input port for noise signal from the _AND IF I (MAIN UNIT; I00). 9 IOST Outputs strobe signal to the D/A converter ( UNIT; I9). 0 DATA Outputs common data signal to the D/A converters (LOGI UNIT; I0, MAIN UNIT; I0, UNIT; I9). AMETXD Outputs AME TX data to the attached UT- (ODE UNIT for I-9AD). AMERXD Input ports for AME RX data from the attached UT- (ODE UNIT for I-9AD). Outputs common clock signal to the D/A K converters (LOGI UNIT; I0, MAIN UNIT; I0, UNIT; I9). DAST Outputs strobe signal to the D/A converter ( UNIT; I90). DAST Outputs strobe signal to the D/A converter (I0). HG Outputs charge control signal to the charger circuit (Q0, Q, D0, D). High =While charging. HGH Outputs charging current control signal to the charger circuit (Q0, Q, D0, D). High =When the charging is completed. PUHV Inputs HV line detection signal from the HV line voltage detector (Q, D). Low =While no exrternal D power supply is connected. 9 PON Outputs power control signal to the +V regulator (Q00, Q0, D00). Low =While the transceiver s power is OFF. MUTE Outputs TX mute signal to the mode switch (I0). High =While the transmitting is muted. TOUT Outputs TSS/DTS signals. Available for the I-9AD or when UT- is installed into the I-9A. - 9

17 - PU PORT ALLOATION (continued) Pin No. Port Name Description DTMF Outputs DTMF/beep/0 Hz tone signals. TONE Input port for tone signals (_AND; TSS, DTS, etc.) from the tone selector (MAIN UNIT; I0). ATONE Input port for tone signals (A_AND; TSS, DTS, etc.) from the tone selector (MAIN UNIT; I0). S-LV Input port for RSSI signal from the D/A converter (MAIN UNIT; I00). VOL Input port for audio level setting signal from the volume controller (MAIN UNIT; S0). 9 RSSI Input port for RSSI signal (_AND) from the IF I (MAIN UNIT; I00). 0 TEMP Input port for transceiver s temperature detection signal from the detecting temperature selector (I0). VIN Input port for the volatge level from the connected power supply. 9 RESET Input port for reset signal from the reset I (I00). 9 LSFT Outputs PU clock frequency shift signal to the clock frequency oscillator (X, D0). 0 AQ Outputs AQ signal to the modem I (UT-; I0). DEL Outputs DSEL signal to the modem I (UT-; I0). RXK Input port for RX clock signal from the modem I (UT-; I0). RXDT Input port for RX data to the modem I (UT-; I0). TXDT Outputs TX data to the modem I (UT-; I0). TXK Input port for TX clock signal from the modem (UT-; I0). TX Outputs data signal to the RS- driver (I). RX Input port for data signal from the RS- driver (I). AMELK Outputs AME clock signal to the DSP I (UT-; I0). AMERES Outputs AME reset signal to the DSP I (UT-; I0). IOST Outputs strobe signal to the D/A converter (MAIN UNIT; I0). AMEST Outputs AME strobe signal to the DSP I (UT-; I0). 9 AMEEPR Input port for AMEEPR signal from the DSP I (UT-; I0). Outputs +D line control signal to the. V 90 DV regulator (UT-; Q0, Q). Low =During DV mode operation. 9 D_AS Outputs mode select signal to the mode switch (I0). Low =During DV mode operation. 9 PS Outputs power control signal to the _AND PLL I (MAIN UNIT; I00). Low =During in power save mode. 9 UNLK Input port for unlock signal from the PLL I ( UNIT; I00). Low =While the PLL is unlocked. 9 PLLDATA Outputs data signal to the PLL I s (MAIN UNIT; I00, UNIT; I00). 9 PLST Outputs strobe signal to the PLL I (MAIN UNIT; I00). Available for the I-9AD or when UT- is installed into the I-9A. - 0 Pin No. Port Name 9 IOST 9 AFON 9 APLLST 99 TX 00 MI Description Outputs strobe signal to the D/A converter (MAIN UNIT; I0). Outputs AF power amplifi er control signal to the AFV regulator (Q0, Q0). High =While the squelch is open. Outputs strobe signal to the A_AND PLL I ( UNIT; I00). Outputs transmitter circuit control signal to the LED driver (Q00) and the T regulator (MAINUNIT; Q0 Q) High =While transmitting. Outputs microphone amplifi er (Q0) and AL circuit (I0) control signal to the microphone amplifi er driver (Q00). Low =While transmitting.

18 SETION ADJUSTMENT PROEDURES - PREPARATION When adjusting I-9A/AD, these test equipments, OP-L and the JIG cables (see the illust below) are required. REQUIRED TEST EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE D power supply power meter (terminated type) Frequency counter FM deviation meter Audio generator ONNETION Output voltage :.0. V D urrent capacity : More than. A Measuring range : 0. W Frequency range : MHz Impedance : 0 Ω R : Less than. : Frequency range : MHz Frequency accuracy : ± ppm or better Sensitivity : 00 mv or better Frequency range Measuring range Frequency range Output level : 0 00 MHz : 0 to ±0 khz : Hz : 00 mv ( to dm) Standard signal generator (SSG) Oscilloscope A millivoltmeter External speaker Attenuator Frequency range : MHz Output level : 0. µv to mv ( to dm) Frequency range : D 0 MHz Measuring range : V Measuring range : 0 mv to 0 V Input impedance apacity : Ω : More than 0 mw Power attenuation : 0 or 0 d apacity : More than W AUTION! DO NOT transmit while the SSG is connected to the antenna connector. Standard signal generator 0. µv to mv ( dm to dm) D power supply for TX power IDLING/FINAL adjustment lack: power meter 0. W/0 Ω To the [D IN] jack OP-L White: to the antenna connector Attenuator 0 d or 0 d to the [MI] jack FM deviation meter Frequency counter JIG cable PTT MI kω Osciiloscope A millivoltmeter Audio generator 00 Hz to khz D power supply. V/. A D power supply for other adjustments (Except TX power IDLING/FINAL ) to the [SP] jack JIG cable D power supply*.0. V/. A LONE kω I-9A/AD *e sure the polarity. -

19 AUTION!: AK UP the originally programmed memory data in the transceiver before starting the adjustment. There is possiblity of losing original memory data when the adjustment is finished. KEY ASSIGNMENTS FOR ADJUSTMENT MODE [DIAL] ENTERING ADJUSTMENT MODE q Turn the power OFF. w onnect the JIG cables (see page -) to the [SP] and [MI] jacks. e While pushing [SQL] and [] keys, turn the power ON. During adjustment mode, the function dispaly shows the adjustment item, frequency, etc. as below. : Selects the next adjustment item. : Selects the previous adjustment item. : Adjusts the value for the item manually. : Stores the set value. Adjusts the value for the item automatically. NOTE: The set value storing cannot be performed during transmit. Release PTT switch to return to receive first, then push this key to store the set value. QUITING ADJUSTMENT MODE While pushing [VFO], [MR] and [AND] keys, turn the power OFF. -

20 - TRANSMITTER ADJUSTMENT Set the specified value using [DIAL], and push [AND] to store the set value. Then push [] to move to the next adjustment item. NOTE: REFERENE FREQUENY should be adjusted before FM DEVIATION and RX. Otherwise, these adjustments will not be adjusted properly. ADJUSTMENT ITEM ADJUSTMENT ONDITION VALUE REFERENE FREQUENY [Fr] TX POWER IDLING.0 V (VHF) [id] (UHF) Transmitting FINAL.0V (VHF) Transmitting [Po] (UHF) Transmitting TX POWER IDLING.V [Id] (VHF) (UHF) Transmitting FINAL.V [Po] (VHF) onnect an power meter to the antenna connector. Loosely couple a frequency counter to the antenna connector. Transmitting Power supply voltage :.0 V Adjustment value of : 00 onnect an power meter to the antenna connector. Transmitting MHz 0 mw 0. W Power supply voltage :. V Adjustment value of : 00 Transmitting [HIGH]:.0 W [LOW]: 0 00 mw NOTE: Take notes of this adjustment value. (This value is used as reference for TX POWER IDLING.V adjustment) Transmitting (UHF) Transmitting TX POWER IDLING.V [Id] (VHF) Power supply voltage :. V Adjustment value of : 00 Transmitting [HIGH]: W [LOW]: 0. W [HIGH]: Adjustment value: or TX pwr.:.0.0 W () [LOW]: 0 00 mw (UHF) Transmitting [HIGH] Adjustment value: or TX power:.0.0 W [LOW]: Adjustment value: () FINAL.V [Po] (VHF) Transmitting (UHF) Transmitting (); Adjustment value for the case If the output power exceeds.0 W. (); Set to the value in which is subtracted from the [Id] value set by TX POWER IDLING. V (UHF)/[LOW]. [HIGH]:.. W [LOW]: W -

21 - TRANSMITTER ADJUSTMENT (continued) Set the specified value using [DIAL], and push [AND] to store the set value. Then push [] to move to the next adjustment item. ADJUSTMENT ITEM ADJUSTMENT ONDITION VALUE FM DEVIATION [FMV] (VHF) onnect an audio generator to the [MI] jack through the JIG cable (see the page -) and set as; Frequency :.0 khz Level : 90 mvrms onnect a modulation analyzer to the antenna connector through an attenuator and set as; LPF : 0 khz HPF : OFF De-emphasis : OFF Detector : (P-P)/ Transmitting (UHF) Transmitting [FMR] Set the audio generator to the [MI] jack through the JIG cable (see (VHF) the page -) and as; Frequency : 00 Hz Level : 90 mvrms Transmitting (UHF) Transmitting DIGITAL DEVIATION onnect a modulation analyzer to the antenna connector through an [DVV] attenuator and set as; (VHF) LPF : 0 khz HPF : OFF De-emphasis : OFF Detector : (P-P)/ Transmitting (UHF) Transmitting [DVR] Transmitting (VHF) (UHF) Transmitting DTMF, TSS/DTS onnect a modulation analyzer to the antenna connector through an DEVIATION attenuator and set as; [DTMF] LPF : 0 khz (DTMF, VHF) HPF : OFF De-emphasis : OFF Detector : (P-P)/ No audio signals are applied to [MI] jack. Transmitting (DTMF, UHF) Transmitting [T] Transmitting (TSS, VHF) (TSS, UHF) Transmitting [DT] Transmitting (DTS, VHF) (DTS, UHF) Transmitting *Displayed on the function display. The output level of the standard signal generator (SSG) is indicated as the SSG s open circuit. Necessary for the I-9AD or when UT- is installed into the I-9A. ±. khz ±. khz minimum deviation ±. khz ±0. khz -

22 - REEIVER ADJUSTMENT Set the specified value using [DIAL], and push [AND] to store the set value. Then push [] to move to the next adjustment item. ADJUSTMENT ITEM ADJUSTMENT ONDITION VALUE RX (A_AND) onnect an SSG to the ANT connector and set as; [TrA] Dev. :. khz AF : khz 0 MHz bands Set the SSG as; Frequency : Specified frequencies* Level : 0 dµ ( 0 dm) Receiving MHz bands Set the SSG as; Frequency : Specified frequencies* Level : dµ ( 0 dm) Receiving 0 MHz bands Set the SSG as; Frequency : Specified frequencies* Level : 0 dµ ( 0 dm) Receiving Push [AND] 0 0 MHz bands Set the SSG as; (Automatic Frequency : Specified frequencies* adjustment) Level : dµ ( 0dm) Receiving MHz bands Set the SSG as; Frequency : Specified frequencies* Level : 0 dµ ( 0 dm) Receiving RX (_AND) onnect an SSG to the ANT connector and set as; [Tr] Dev. :. khz AF : khz 0 MHz bands Set the SSG as; Frequency : Specified frequencies* Level : dµ ( 0 dm) Receiving FM S-METER (A_AND) onnect an SSG to the ANT connector and set as; [SA] Dev. :. khz AF : khz.0 MHz bands Set the SSG as; Frequency : Specified frequencies* Level : dµ ( dm) Receiving 0 0. MHz bands Set the SSG as; Frequency : Specified frequencies* Level : dµ ( dm) Receiving 0 MHz band Set the SSG as; Frequency : Specified frequency* Level : dµ ( dm) Receiving 0 00 MHz bands Set the SSG as; Frequency : Specified frequencies* Level : dµ ( 09 dm) Receiving FM S-METER (_AND) Set the SSG as; [S] Frequency : Specified frequency* (VHF) Level : dµ ( dm) Receiving (UHF) Set the SSG as; Frequency : Specified frequency* Level : dµ ( dm) Receiving *Displayed on the function display. The output level of the standard signal generator (SSG) is indicated as the SSG s open circuit. Push [AND] (Automatic adjustment) -

23 - REEIVER ADJUSTMENT (continued) ADJUSTMENT ITEM ADJUSTMENT ONDITION VALUE WFM S-METER onnect an SSG to the ANT connector and set as; [SA] Dev. :. khz AF : khz.0 MHz bands Set the SSG as; Frequency : Specified frequencies* Level : 0 dµ ( 0 dm) Receiving. 0. MHz bands Set the SSG as; Frequency : Specified frequencies* Level : dµ ( 0 dm) Receiving 0. MHz band Set the SSG as; Frequency : Specified frequency* Level : dµ ( dm) Receiving. MHz band Set the SSG as; Frequency : Specified frequency* Level : dµ ( 0 dm) Receiving 0.9 MHz band Set the SSG as; Frequency : Specified frequency* Level : dµ ( 0 dm) Receiving. MHz band Set the SSG as; Push [AND] Frequency : Specified frequency* (Automatic adjustment) Level : 0 dµ ( 0 dm) Receiving 0 MHz band Set the SSG as; Frequency : Specified frequency* Level : dµ ( 09 dm) Receiving 0 MHz band Set the SSG as; Frequency : Specified frequency* Level : dµ ( 0 dm) Receiving MHz band 9 Set the SSG as; Frequency : Specified frequency* Level : dµ ( dm) Receiving 0 MHz band 0 Set the SSG as; Frequency : Specified frequency* Level : 0 dµ ( 9 dm) Receiving 00 MHz band Set the SSG as; Frequency : Specified frequency* Level : dµ ( 0 dm) Receiving *Displayed on the function display. The output level of the standard signal generator (SSG) is indicated as the SSG s open circuit. -