Kenwood KRC478 free download

File name Kenwood-KRC478 car radio.pdf

CASSETTE RECEIVER KRC-478R/RV/RY/RYV SERVICE MANUAL © 1999-11 PRINTED IN KOREA B51-7567-00 (K) 1894 MECHANISM EXTENSION CORD W05-0477-00 (7P) W05-0609-00 (10P) KRC-478R/RV/RY/RYV (E) EJECT MENU SRC PWR OFF / PTY KRC-478R CD MD-CHANGER CONTROL 40W X 4 DISC LOUD SCAN B.S/RDM REP D.SCN M.RDM TI VOL ADJ CLK NAME.S DISC ANTENNA ADAPTOR (T90-0523-05) PLASTIC CABINET ASSY (A02-1486-13) LEVER (D10-xxxx-xx) x2 (Refer to the parts list.) MOUNTING HARDWARE ASSY (J21-9491-03) DC CORD (E30-4792-05) (KRC-478R/RY only) 40% KRC-478R/RV/RY/RYV CHMUTE CHRST CH CLK DATA C SW 5V DATA H AM+B OSC GND OSC GND OSC GND OSC GND VT PLL +B IFC OUT SDA SCL DIG GND VDD 5V IF2 GND IF2 +B AUDIO OUT SD S-METER IF1+B IF1 GND FM: 213mV AM: 175mV CH CON REQ C REQ H NOISE AFC Rch R QUAL Lch RDS DECODER Q61,63 FM+B Q62,64 AM+B R216 5V 8V R CLK SMUTE FWD/REV EQ MUTE REMOTE RESET MUSIC PANEL T-END L-CLK 8V L-RESET L-DATA S L-DATA L PACK IN T-MODE M-STBY MOTOR L-CE DSI Lch HD1 Rch LCD DRIVER 10 RED GRN GRN/RED DRIVER ED1 LCD KEY D18,19 2 J4 8 IC2 Lch Rch AM 8V 1200mV MPX CD/MD CHANGER Lch Rch R206,C206,212 AM BPF R205,C207,211 J1 IC4 POWER IC (40W) B.U A1 FRONT-END UNIT RF GND FM BPF J2 SP OUT LEVEL MP IN QUAL E-VOL. N.C/MPX CH. ISO AMP. OUT LF FRONT Lch FM ANT AM ANT OSC GND FM+B MP SW IC1 MPOUT OUT RF FRONT Rch OUT LR SDA SCL SDA SCL IC8 R DATA OUT RR REAR Lch FM+B BLOCK DIAGRAM AM+B BEEP REAR Rch u-COM STBY SVR IC10 MUTE DRIVER Q57-60 STBY SVR MUTE AC GND(BEEP) PLL-SDA MUTE PLL-SCL PHONE SD S-METER ACC DET B.U DET PON SUB+ P CON CN3 3 2 1 FRONT PRE OUT Lch Rch IC6 SUB- SUB MOTOR DRIVER B.U.5V PRE OUT MUTE J5 REAR PRE OUT 1 Lch 2 Rch Q21 ME1 DSI IC5 EQ. AMP SUB MAIN MUSIC MUTE Lch M2 Ref.94 T-END M1 COM Ref.103 FWD REV Ref.95 SYBY PACK IN Ref.105 8V SW5V Rch TAPE L R 340mV B.U.5V B.U.5V B.U.5V FM :1276mV AM :792mV TAPE :1778mV CD/MD-CH :3592mV J2 TEL MUTE Q3 IC9 u-COM RESET Q65 PANEL 5V 8V M M Q20 u-COM RESET P-CONT. B.U.5V SW5V SW5V Q4,5 SW14W Q6,7 8V AVR Q10-13 ILLUMI. AVR Q18 ACC DET. Q19 B.U DET. Q14-17 P-CONT. B.U ACC (X13) IC2 REMOTE 5 PANEL SW (GND) RESET SW D1-17 B.U.5V Q1,2 B.U.5V AVR MODE Ref.102 IC1 Q2,3 KRC-478R/RV/RY/RYV (E/E/E/E) KRC-478R/RV/RY/RYV COMPONENT DESCRIPTION SYNTHESIZER UNIT (X14-6xxx-xx) REF. No. IC1 IC2 IC4 IC5 IC6 IC8 IC9 IC10 Q1,2 Q3 Q4,5 Q6,7 Q8,9 Q10-13 Q14 Q15 Q16,17 Q18 Q19 Q20 Q21 Q51 Q52 Q53 Q54,55 Q56 Q57-60 Q61 Q62 Q63 Q64 Q65 Q67 FUNCTION -COM ELECTRIC VOLUME POWER IC EQUALIZER AMPLIFIER SUB MOTOR CONTROLLER RDS DECODER -COM RESET MUTE DRIVER BACK-UP 5V AVR SW 5V SW 14V 8V AVR MAIN MOTOR SW ILLUMINATION AVR P-CON. START-UP P-CON. PROTECTION CIRCUIT P-CON. SW ACC DETECTION BACK-UP DETECTION -COM RESET DSI POWER AMPLIFIER SVR CONTROLLER PREOUT MUTE CONTROLLER ELECTRIC VOLUME MUTE AFC MPX BUFFER PREOUT MUTE CONTROLLER FM+B SW AM+B SW FM+B SW AM+B SW PANEL SW NOISE BUFFER OPERATION Controls system. Switches each source, decodes FM