Sony ZS-S10CP Service Manual page 24

ZS-S10CP
• IC Pin Function Description
MAIN BOARD IC801 TC94A77FG-734 (SY, H (CD DSP, SYSTEM CONTROLLER, LCD DRIVER)
Pin No. Pin Name
1 FMO
2 DMO
3, 4 KEY1-I, KEY2-I
5 CD LIMIT/LID IN
6 BATT-CHK-H
7 6V CHK
8 SIMUKE
9 VREG
10 MXO
11 MXI
12 VDD3
13 VSS
14 VSSP3
15 VCOI
16 VDDP3
17 AUDIO DET
18 RESET
19 VDD1
20 VSS
21 DVSS3
22 LO
23 DVR
24 RO
25 DVDD3
26 XVSS1
27 XI
28 XO
29 XVDD1
30 POWER KEY
31, 32 SHIFT2, SHIFT1
33 I2C SCL
34 I2C SDA
35 TU RESET
36 VSS
37 VDD1
38 P-CONT
39 A-MUTE
40 MOTOR-MUTE
41 ACDC CHK
42 NC
43 to 49 SEG15 to SEG9
50 VDD3
51 to 58 SEG8 to SEG1
59 to 62 COM4 to COM1
63 VDDM1
64 HOLD
65 VSS
66 VDD1
67 PDO
68 TMAX
69 LPFN
70 LPFO
71 PVREF
72 VCOF
73 RVDD3
24
I/O
O Spindle motor drive signal output terminal
O Sled motor drive signal output terminal
I Top and fornt panel key input terminal (A/D input)
I CD limit switch and CD lid open/close detection switch input terminal
I Battery power detection signal input terminal (A/D input)
I +6V power detection signal input terminal (A/D input)
I Destination setting terminal
- Reference voltage (+1.5V) terminal
O System clock output terminal (4.19 MHz)
I System clock input terminal (4.19 MHz)
- Power supply terminal (+3.3V)
- Ground terminal
- Ground terminal
- VCO input terminal
- Power supply terminal (+3.3V)
I AUDIO IN signal detection signal input terminal
System reset signal input from the reset signal generator
I
For several hundreds msec. after the power supply rises, "L" is input, then it change to "H"
- Power supply terminal (+1.5V)
- Ground terminal
- Ground terminal
O Audio siganal (L-ch) output to the electrical volume
- D/A converter eference voltage terminal
O Audio siganal (R-ch) output to the electrical volume
- Power supply terminal (+3.3V)
- Ground terminal
I System clock input terminal (16.9344 MHz)
O System clock output terminal (16.9344 MHz)
- Power supply terminal (+1.5V)
I POWER key input terminal
O Clock shift signal output terminal
O I2C clock signal otuput to the FM/AM receiver, electrical volume and EEPROM
I/O I2C data bus with the FM/AM receiver, electrical volume and EEPROM
O Reset signal output to the FM/AM receiver
- Ground terminal
- Power supply terminal (+1.5V)
O +9V power on/off control signal output terminal
O Audio muting on/off control signal output terminal
O Muting on/off control signal output to the coil/motor driver
I AC power detection signal input terminal (A/D input)
O Not used
O Segment drive signal output to the liquid crystal display
- Power supply terminal (+3.3V)
O Segment drive signal output to the liquid crystal display
O Common drive signal output to the liquid crystal display
- Power supply terminal (+1.5V)
I Hold signal input terminal
- Ground terminal
- Power supply terminal (+1.5V)
O EFM and PLCK phase deference signal output terminal
O TMAX detection result output terminal
I PLL circuit LPF amplifi er inversion input terminal
O PLL circuit LPF amplifi er output terminal
- PLL circuit reference voltage (+1.65V) terminal
- VCO fi lter teminal
- Power supply terminal (+3.3V)
Description
Not used
"L": reset
"H": power on
"H": muting on
"L": DC power, "H": AC power
Not used
"L": reset