SONY CDX3800 Repair Manual

SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTIONPin No.Pin NameI/OPin Description
Y IC600 ?PD78005GC-133-8BT (SYSTEM CONTROL)52PLLCKOOPLL clock output
Pin No.Pin NameI/OPin Description
53PLLSIIPLL data input
1MCLKOMicrocomputer command clock signal output (data latch on rising)54AMONOAM ON output
2MDATAOMicrocomputer command data signal output55NNNot used in this set.
3MLDOMicrocomputer command load signal output56FMSTI/OST-IND indication input/Forced Monaural output
4AVSSNAnalog ground57SW4ISwitch 4 input (OL� active)
5DSTSEL0IDestination select setting input (Connect to ground in this set.)
58SW3ISwitch 3 input (OL� active)
6DSTSEL1I9k/10k select setting input (OL�: 9 kHz step, OH�: 10 kHz step)59SW1ISwitch 1 input (OL� active)
7AVREF1IAnalog reference voltage input60RESETISystem reset input
8SUBQISub code Q data input61SIRCSIRemote commander input
9NNNot used.62KEYACKIKey input acknowledge
10SQCKOClock output for sub code Q register.63BUINIBackup power supply detection input
11LCDCEOLCD driver serial chip enable output
64BLKCKISub code block clock signal input (interruption)
12LCDSOOLCD driver serial data output65SW2ISwitch 2 input (OL� active)
13LCDCKOOLCD driver serial clock output66FCLKILatch input for error correction result read-in. (interruption)
14ILLONOIllumination power control output67VSS0NGround
15UNICKIISONY-BUS serial interface clock input68VDD1NPower supply pin (+5 V)
16UNISIISONY-BUS serial interface data input69X2NMain system clock output (5 MHz)
17UNISOOSONY-BUS serial interface data output
70X1NMain system clock input (5 MHz)
18UNICKOOSONY-BUS serial interface clock output71VPPNInternal connection
19SBCKOClock output for error correction result read-in.72XT2NSub system clock output (32.768 kHz)
20BUSONOBUS ON control output73XT1NSub system clock input (32.768 kHz)
21SYS RSTOSystem reset control output74VDD0NPower supply pin (+5 V)
22RSTODSP reset signal output (OL� active)
23FOUTOLoading motor control output (Forward direction)75AVREF0NAnalog reference voltage input
76KEYIN0IKey input 0
24ROUTOLoading motor control output (Reverse direction)77KEYIN1IKey input 1
25CD-ONOCD power control output78S-METERIAM/FM S-meter voltage detection input
26PW-ONOSystem power control output79SD-INISignal detector input
27LIMSWILIMIT switch input (OL� active)80LCDINHOLCD blank indication control output
28FLAGIData input for error correction result read-in.
29SENSISENS signal input
30FLOCKIFocus servo pulling signal input (OL� active)
31TLOCKITracking servo pulling signal input (OL� active)
32STATEIStatus signal input
33VSS1NGround
34VIB.I/OVibration lens input/output
35CDM-ONOCD machanism power control output
36AMPMUTOPower amplifier mute control output
37A-MUTOAudio mute control output
38AD-ONOPower control output for A/D conversion.
39PW-SELONot used in this set.
40NOSESWIFront panel attachment detection input
41TESTITest mode direct setting input
42TELMUTONot used in this set.
43ACCINIAccessory power supply voltage detection input
44VOLCEOElectric volume serial chip enable output
45VOLSOOElectric volume serial data output
46BEEPOBeep output
47TUNONOTuner ON output
48FMONOFM ON output
49PLLCEOPLL chip enable output
50VOLCKOOElectric volume serial clock output
51PLLSOOPLL data output
1111