Relay Table iodes MV0, V Nxxxx ET Relays Band B P F L P F VCO 0m K 0m K, K 0m K 0m K, K 0m K m K m K, K m K, K 0m K 0mK K K K K K K K0 K0 K K, K K, K K, K, K K, K K K, K, K K, K N000 ZVN Transistors N0 PNA N0 MP J0 C C C NOTE: All relays are singlecoil latching type and are shown in the REET position in schematics. Relay pins and are not connected internally. E B C C E B Integrated Circuits B C E Band Fixed Cap., pf 0m C (0) 0m C (0) 0m C0CC () 0m CC () 0m C (0) m none (0) m C () m C (0) 0m none (0) VCO Table Total Cap., pf* 0 VCO Freq. at band edge** (subtract) (subtract) (subtract) (subtract) (subtract) (subtract) pecial ymbols 0 (add) (add) 0 (add) PLATIC IP (UALLE PACKAE) COUNT P TART AT P AN O COUNTER CLOCKWIE (P IP HOWN) = On bottom of PC board. VOLTAE REULATOR L0, 0 0T, XX Jumper * This includes capacitance of varactor diodes on all bands, and on 0 and 0 meters, and stray capacitance. Only a portion of the indicated capacitance range is actually used to cover each Amateur band segment. VCO frequency can be calculated based on a total inductance of 0. µh (T in parallel with L0). ** Based on an I.F. of khz (e.g., = 00). K chematic Key By W. Burdick Rev. ate ht. E.wartz B /0/00 of
A 0 0 0 /BANK /BANK A R 0 B a r g r a p h Brightness C o n t r o l Backlight LEs R 0 /NIHT R0 0 0 0 F,E,AN COM A,, COM B,C,P COM F,E,AN A,, B,C,P F,E,AN A,, B,C,P F,E,AN A,, VIMP IIT LC LC river U PCF (0 through connected to ; only 0 and shown) B,C,P F,E,AN A,, B,C,P F,E,AN A,, B,C,P F,E,AN A,, B,C,P F,E,AN COM A,, COM B,C,P COM BAN RECALL BAN TORE IPLAY RF/ALC ANT/ TUNE /BANK MOE A/B A=B VOX REV 0 PLIT # # # /BANK PRE/ATTN AC XFIL POT CW REV AFIL # # # Q Q PNA C.0 RP 0 0 0 LE Array 0 R 0.0V AY (ma/le).v NIHT (ma/le) (based on LE Vf=.V) /BANK /P R /MIC R /BANK 0 0 A CL /YNC 0 V OC A0 A A A0 0 0 IAT V 0 C R R K 0K A V VLC BP0 0 BP BP BP 0 MENU EIT 0 0 NB LEVEL (spare) RATE LOCK # 0 RP 00K RIT XIT M PF PF REC # # # 0 Pushbutton witches First switch label corresponds to switch TAP, econd label corresponds to switch HOL. can also be used as a numeric keypad. /ENC R 0 VCC /Q0 /Q /Q /Q /Q /Q /Q /Q / RCK /RCLR RCK VCC /Q0 /Q /Q /Q /Q /Q /Q /Q / RCK /RCLR RCK B V A V Z haft Encoder A H/L H ER QH /QH VCC 0 A B C E F H U HC /P R A R K Keyer peed ccw cw U B 0 C R WRT A R CK R 0 U B C.0 /R R R CK R A To RF Board, P /BANK R K Power Out ccw cw J M i c P AF PTT N UP FUNC V Mic Config. C C C C C These components are supplied with B adapter. RP 0K RP 0K RP Q N0 R.K, % J A 0 0 MIC AF /OTPTT V POT /MIC R K (audio taper) AUXBU (NC) R R R WRT R CK /R R A IAT R K R.F. ain cw ccw R.K RP V POT A 0K R AF ain R.K cw ccw R K RIT/XIT Offset /BANK ccw cw N V POT R 00K A K Front Panel Board By W. Burdick Rev. ate ht. E. wartz B //00 of
Freq. Ctr 00kHz0MHz Volt Meter Input C0 P HOT N 0K, % K, % /AC OFF U NE0 I n p u t EXT. R0 C.0 V R C Aux I/O P AUXBU R V X.0MHz P A nc 0 C 0 T (V) C C C I.F. T V V RFET C V PWR RP K MP Voltage ense A C R K UB Q RP /LOW AC K RP 0 C 0 0.V (0.V res.) V ENE C 0.00.0A (0mA res.) C.µF I ENE C.0 RP K Q0 MP 00 V R % R.F. A RP.K C R N ALC R 0K C RP K RP.K U0A Current ense Note: Current sense resistor is R on the RF board..k, % LMC0 C.00 RP 0 RP K V FCTR PNA R Q P COUNT To RF Board, J C C 0.000MHz UA LMCA V MTR R K Q 0 PNA A R 0K N UB C.00 R RP.K R.M UA A LM C 0.µF V AC NOTE : R and R are 0 ohms (jumpers) in this version of the K. The jumpers must be removed if the Audio Filter option is installed. R.K A Q PNA X RP.K V V MTR /LOW AC C µf V POT /MUTE /ACC C.0 A /PLLC V Lowropout Reg. C.00 V A A V A A I ENE V ENE /AC OFF A CK U U 0 LM0T V Reg. V RFET /R R M0 IAT C R R CK R WRT V POT C 00µF R V 0 C.0 To RF Board, J IAT /R R R R CK R WRT R A AUXBU /OTPTT /AH C.0 V BIAXFIL RP K /ACC Q N0 Q N0 P P MCLR RA0 RA RA RA RA RA RE0 RE 0 RE V V OC OC RC0 RC 0 RC RC R0 R RC RC R R U C MCU 0 RB RB RB RB RB RB RB RB0 V V 0 R R R R RC RC R R A A T T RX TX TONE 0 A AUXBU R 0 A P HOT C.00 RP K C0.00 /EEC V PWR V witching RP.K RP.K VOL VOL P TONEVOL Quad, bit AC B C A REF A UPO V PE /LAC 0 /CLR /C 0 RP K TONE T R U MAX /C VCC O /HOL /WP V CK I U LC0 EEPROM Q N000 Q /ACC /PLLC /OTPTT /AH To RF Board, J CK 0 RX O C.00 RP K TX A Q N000 0 RP.K RP K A A A CK O 0 Ω (NOTE ) Mute Q J0 AF Amp C RP K RP K R C P LM0N RP K C.00 RP K K /MUTE VOL C.0 U R0.Ω C0.0 C 0µF NC BYPA v RP K µf C 0µF U0 0 V BIAXFIL RP U0C 0 C 0. A u d i o F i l t e r AUXBU V J J C0 RP R.M C LMC0 C.µF U0B K C A C 0. P R 0 R 0 Ω Q J0 VOL V IETONE K Control Board By W. Burdick Rev. ate ht. E. wartz B //00 of RP 0 RP 0 0
L 0µH RP 0K.0MHz X X R 00K N RP 0K MV0 C00.00 RP 0K PLL Reference Oscillator Q J0 C 0 C 0 V B TP C.00 OC V C OC PH V 0. R REF PH R.M R F P O V.K C /PLLC /ENB L 0 C CK FV.0 RFC FR µh U MC0 R0 0 PLL ynthesizer B B C 0µF R.K RP 0K RP 0K C.0 C UB LMC VFO Range election Relays are shown in REET position. ee relay table (sheet ). R K K K C µf RFC0 mh R0 R 0 0K R 0K nc R K L0.µH B C 0pF VFO R 00K T.µH C C 0. N B R Q J0 C.00 R 0K C R 0K R 0 C 0. TX VFO R 0 B Buffer U LT RX VFO TP U LTC CK VCC O V /ACC L /C REF Bit AC (Vout = 0 to.0v) RP 0K B B RP 0K UA LMC A RFC µh B C C0 0µF U L0 B C0.0 C0.pF C C (not used) K C 0 nc C 0 C V C 0 C0 00µF Q N000 R 00K Q PNA R M VFO ALC N C 0. R0 K R 0K Vpp C C Key/Keyer/Paddle J R R 0 0 C C.00.00 /AH /OTPTT C o n t r o l B o a r d J R I.F. V AC R.F. A J V A A V A A V RFET IAT R 0 /R R R CK R WRT V POT R V BIAXFIL V R T AUXBU P 0 0 R T P J VOL VOL /ACC /OTPTT CK 0 0 /PLLC /AH O V R 0.0Ω, %, W Current ense J V C P Aux. V V ON C.0 0 B0 F RE00 R R C0 C0.µF.µF P F r o n t P a n e l B o a r d 0 0 R R OFF P o w e r B0 J Phones p e a k e r P VOL VOL /OTPTT MIC AF AUXBU R R R WRT R CK /R R V POT IAT A R.F. A T C.µF Q N000 K RF Board By W. Burdick Rev. ate ht. E. wartz B //00 of
RFC 00µH N00 N00 C RFC 00µH C R TX VFO T C R.K R Q0 N000 T BPF C (h. ) C 0. R 0 C 0 C C R 00 Attenuator 0 d B Buffer U LT R 0 R Xmit Mixer C.0 V K R C.0 V C 00pF R 00 C0 0 U0 NE0 R R.K R.K C R 0 K R R 0 R 0 V T W 0 XFIL In Q N0 R RF Preamp db C.K C R C C RP, RP: 00K B A d a p t e r RX VFO R0 0K Z TUF V BIAXFIL RP RP RP RP RP J X X X X0 0 J V * C.00 R dbm C Rcv. Mixer 0 RP X C.0 J 0 C R0 0 W C.MHz VariableBandwidth Crystal Filter R AUXBU T /OTPTT MIC AF V RFET : V B Control A V XFIL XFIL Out * Remove C when B Adapter is installed. R.K V C0 RFC 00µH Q N0 PostMixer Amp. T R R R.K C C C.0 R IF Amp AC R R.Ω C R 0 V AC C R 0 C 0. C.K R C 0 R 0 R U MC0 L.uH I.F. C N00 BFO Buffer/Attenuator N o i s e B l a n k e r C V W NB Bypass MV0 R0 00K nd Xtal Filter TP Q N000 X HI IP V XFIL Q J0 C 0 AUXBU R X C0 0 A X.MHz R 0 J C0.0 By W. Burdick E.wartz Product et. C 0. µh V RP 00K R00 0 V R 00 db, Z= 0Ω C X L V C 0. U NE0 C.0 C 0 R0 0 NOTE: If Noise Blanker is installed, R and R0 must be removed, and R replaced with a jumper. RP 00K V BFO RP 00K K RF Board J Rev. ate ht. B //00 of Aux. AF P P RP 00K C
BPF (h. ) KA KA KA KA KA C 00 C C0 0 0m/0m 0m/0m C 0pF 0m/m m/m 0/0m 0/0m 0pF /m 0pF C. µh C0 C L. pf.µh C C 00 C 0 C C 0 C C L µh 0m C C C C 0 00 0 L.µH 0 L0 µh L.µH C.pF L C 0/m 0pF C 0pF C C L µh L µh 0pF BandPass Filters L.µH K K R L.µH C 00 C 0 C C 0 C 00 L.µH C C 0 C C 0 ALL RELAY BYPA CAPACITOR ARE.00µF C, C, C, C0, C0, C, C NOTE: Pins and of relays are not connected internally. However, these pins may be connected to other relay pins or to other components on either side of the PC board. KB KB KB KB KB K K K C.00 K K C.00 V X v e r t e r I n t e r f a c e X V T R B y p a s s VCO Relays Z.0MHz P r e / A t t n. R e l a y s R W RFC µh C0 U L0 0 0 C T V AUXBU N00 R K N00 PRERIVER V (h. ) C0 C J C0 C 0. 0RY RXRY /CLA AB R RFC 00µH V RY COM N00 U PICC MCLR RA0 RA RA RA RA RA V OC 0 OC RC0 RC T R C0 RFC 00µH C0 C0 T R witch RB RB RB RB RB RB RB RB0 0 V V RC RC R.K I/O Controller RC RC RC RC HI IP C0 N00 R 00K R 0 C0.00 C Q 0 m / R X A n t. R K ZVNA C RFC µh C RX Ant. B y p a s s (h. ) LowPass Filters C C AUXBU R C C C C C C C LPF W BPF Relays C0 LPF R e l a y s 0/0m /0m /m K K K K K K K C.00 K0 K K K K J 0 0 RXRY RY COM C0.00 KA KA C 00 K0A KA KA 0 V RFET C C00 0 C0 C0 C C 00 00 00 L C 0 L C C0 0 0 L C C 0 L RF Output etector C 0 C C L C0 0 C C 00 C C C 0 0 0 R.K R 00K V 0RY 0m L 0m R 0K L L L N C.00 L L0 C0 0 C0 K RF Board KB K0B KB KB R.K % R Ω % By W. Burdick Rev. ate ht. E. wartz B //00 of J Ant. P Aux. RF KB
RFC 0µH V C C µf R C 0. C Z PRERIVER (h. ) R.K R 0 T C C R0 C 0 R.Ω RFC 0µH T :, FT Q N0 C R 0 C µf C0 R 0 R C C 0. RFC 0.µH R0.Ω / W T :, FT Q C r i v e r C 0. C 0 R.Ω C 0 R R R.Ω RFC 0µH RFC 0µH Q C C C A T C0 B 0. Q C Z Power Amplifier (PA) LPF (h. ) R 0 /W T ::: NOTE: W T ::: FOR BETTER EFFICIENCY AT W (EE "MOIFICATION" ECTION) R Ω C 0.0 Q0 N000 T T PA Bias P r e r i v e r R 0 V BIAXFIL Q R R.K 0 Q PNA PNA C.0 R0 00 PA Bias et CCW = M BIA C 00µF /CLA AB R 0 R.K By W. Burdick E.wartz K RF Board Rev. ate B //00 ht. of