Sony HCD-MD1EX - System Service Manual page 71

MAN BOARD IC707 PD78078GF-083-3BA
(MASTER CONTROLLER (CD MECHANISM CONTROL/SYSTEM CONTROL))
Pin No. Pin Name
1 VER
2 VER
3 VER
4
VER
5 to 7 NC
8 —
9 IC
10 X2
11 X1
12 VDD
13 XT2
14 XT1
15 RESET
16 AU-BUS IN
17
AU-BUS OUT
18 ENC/A
19 ENC/B
20 RDS/CLK
21 RDS/DATA
22 SCOR
23 AVDD
24 AVREF0
25 KEY0
26 KEY1
27 KEY2
28 to 30 —
31 RTS
32 MD-POWER
33 AVSS
34 POWER-ON
35 MD-REST
36 AVREF1
37 RXD
38 TXD
39 MD-CLK
40 VSS
41 CTS
42 DATA
43 CLOCK
44 CS
I/O
I Destination setting terminal Not used (open)
I
Destination setting terminal US, Canadian models: fixed at "L", Other models: open
Destination setting terminal
I
US, Canadian, Singapore, Hong Kong models: fixed at "L", Other models: open
I
Destination setting terminal Not used (open)
O Not used (open)
O Not used (open)
— Connected to ground
O Main system clock output terminal (5 MHz)
I Main system clock input terminal (5 MHz)
— Power supply terminal (+5V)
O Sub system clock output terminal (32 kHz)
I Sub system clock input terminal (32 kHz)
System reset signal input from the reset signal generator (IC708) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I Audio bus signal input terminal
O Audio bus signal output terminal
I
Rotary encoder jog dial pulse input terminal (A phase input) Not used (fixed at "L")
I Rotary encoder jog dial pulse input terminal (B phase input) Not used (fixed at "L")
RDS serial data transfer clock signal input from the RDS decoder (IC710)
I
Used for the AEP, UK models
RDS serial data input from the RDS decoder (IC710)
I
Used for the AEP, UK models
I Subcode sync (S0+S1) detection signal input from the CXD2507AQ (IC103)
— Power supply terminal (+5V) (for A/D converter)
I Reference voltage (+5V) input terminal (for A/D converter)
I
Key input terminal (A/D input) I/u (power) key input (S903)
Key input terminal (A/D input) CD p, CD ^, CD §, MD p, MD ^, MD §, VOLUME +/
I
– keys input (S902, 905, 907, 909, 911, 913 to 915)
Key input terminal (A/D input) FUNCTION, CD/MD ) + TUNING +, TUNER/BAND,
I
CD/MD = 0 TUNING –, REC, CD-MD SYNC keys input (S901, 904, 906, 908, 910, 912)
O Not used (open)
O Master controller busy status monitor output to the MD mechanism controller (IC316)
O MD system power supply on/off control signal output terminal Not used (open)
— Ground terminal (for A/D converter)
O System power supply on/off control signal output terminal "L": power on, "H": standby
O
Reset signal output to the MD mechanism controller (IC316) "H": reset
I
Reference voltage (+5V) input terminal (for A/D converter)
I UART communication data input from the MD mechanism controller (IC316)
O UART communication data output to the MD mechanism controller (IC316)
O Serial clock signal output to the MD mechanism controller (IC316)
—
Ground terminal
I MD mechanism controller busy status monitor input from the MD mechanism controller (IC316)
O
Display serial data output to the FL driver (IC901)
O Display serial data transfer clock signal output to the FL driver (IC901)
O Chip select signal output to the FL driver (IC901) "L": data output
Function
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