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Sony CFD-EX35L Service Manual
Also see for CFD-EX35L: Operating instructions
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36CFD-EX35L5-18. IC Pin Function Description• IC801 μPD789478GC-A03-8BT System Control (MAIN Board)Pin No.1, 23456 to 910 to 2728, 293031323334353637383940414243 to 454647484950515253545556575859606162636465666768697071727374I/O—IIIOO—OOOOOOI/OO—IIIIII—III/OIIIOOOOIOIOOOOOOOOIIO——IPin NameNCVLC2VLC1VLC0COM0 to COM3SEG0 to SEG17NCWOOFER ON/OFFWOOFER 1/2ISS1ISS2A-MUTESCLSDAINITAVDDRECC-DOORSIMUKEMODEKEY-1 to KEY-3C-FSEQAVSSRMCREG CHKWPTC-PLAYWRQC-DOC-DIC-CLKC-CER-MUTEC-DRFC-RESR-COUNTR-CLKR-DATAR-CEV-CLOCKV-DATAP-CONTAPEVLNCXT1XT2VDDVSSX1DescriptionNot used (open)LCD bias power supplyLCD bias power supplyLCD bias power supplyLCD common signal outputLCD segment signal outputNot used (open)Woofer on/off control signal outputWoofer 1/2 signal output (not used)ISS-1 signal outputISS-2 signal outputAudio muting signal outputClock output to the EEPROMData input/output with the EEPROMInitialization setting signal outputPower supply (A/D converter)REC signal input from the REC/PB switch (S301) “H”: record modeDetection signal input from the CD OPEN switch (S701) “L”: CD door closeDestination setting signal inputModel setting signal inputKey signal input from the function keysCD FSEQ synchronizing signal detection signal input from the IC701Ground (A/D converter)Data input from the remote control receiverPower supply voltage monitoring signal inputWAKE UP reading signal output (interrupt signal in input mode)TAPE PLAYsignal input from the TC PLAY switch (S321)CD WRQ signal input from the IC701CD DSP data input from the IC701CD DSP data output to the IC701CD clock output to the IC701CD chip enable signal output to the IC701Radio muting signal output “L”: activeCD DRF signal input from the IC701CD system reset signal output to the IC701Radio IF count signal input from the IC2Radio clock signal output to the IC2Radio data output to the IC2Radio chip enable signal output to the IC2Clock signal output to the sound processor (IC321)Data output to the sound processor (IC321)Power control signal outputTAPE function signal output to the IC301VL control signal output “L”: activeNot used (connected to ground)Sub system clock oscillator input (32.768kHz)Sub system clock oscillator output (32.768kHz)Power supplyGroundMain system clock oscillator input (4.19MHz) |
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