Sony ZS-S50CP Service Manual page 40

ZS-S50CP
MAIN BOARD IC803 MB90F045PF-G-9027-SPE1 (SYSTEM CONTROLLER)
Pin No. Pin Name
1
O-BK-LIGHT
2 NC
3
LCD-VDDON
4 to 10
NC
11
GND
12 LCD-INHB
13
LCD-RSTB
14
LCD-CSB
15 to 18
NC
19 LCD-SO
20
LCD-SCK
21 ROM-SDA
22 ROM-SCL
23 VCC
24 to 32
NC
33
VOL-DATA
34
VOL-CLK
35 AD-VCC
36
AD-VREF
37
AD-VSS
38
REG6V-CHK
39 REG3V-CHK
40
NC
41
BATCHK-M
42
GND
43
BATCHK-H
I-KEY0 to
44 to 46
I-KEY2
47 I-WAKEUP
48
A-MUTE
49
MD0
50 MD1
51
MD2
52
NC
53 BASS-ON
54 CD-ON
55
I-AC/DC
56
O-PCONT
57
SBSY
58 to 61 BUS0 to BUS3
SUFFIX0,
62, 63
SUFFIX1
64
I-RMC
65
SUFFIX2
66
BUCK
40
I/O
O
LED drive signal output terminal for LCD back light "H": LED on
- Not used
O LCD power supply on/off control signal output terminal "H": LCD power on
- Not used
- Ground terminal
O LCD display control signal output to the LCD driver
O System reset signal output to the LCD driver
O Serial data transfer chip select signal output to the LCD driver
- Not used
O Serial data output to the LCD driver
O Serial data transfer clock signal output to the LCD driver
I/O
Two-way data bus with the EEPROM
O
Serial data transfer clock signal output to the EEPROM
- Power supply terminal (+3.3V)
- Not used
O Serial data output to the electrical volume
O Serial data transfer clock signal output to the electrical volume
- Power supply terminal (+3.3V)
-
Reference voltage (+3.3V) terminal
- Ground terminal
I
Input terminal for +6.2V power supply voltage detection
I Input terminal for CD +3.3V power supply voltage detection
- Not used
I
Input terminal for battery middle voltage (+4.5V) detection
- Ground terminal
I
Input terminal for battery high voltage and AC power supply (+9V) detection
I Front panel key input terminal (A/D input)
I
Wake-up signal input terminal
O
Audio muting on/off control signal output terminal "H": muting on
I
Input terminal for mode setting "L": flash writing mode, "H": normal mode
I Input terminal for mode setting "H": normal and flash writing mode
I
Input terminal for mode setting "L": normal mode, "H": flash writing mode
- Not used
O
Mega bass on/off control signal output terminal "L": Mega bass on
O CD +3.3V power supply on/off control signal output terminal "H": power on
I
AC/DC power supply detection terminal "L": AC, "H": DC (battery)
O
System power on/off control signal output terminal "H": power on
I Subcode block sync signal input from the CD-MP3 processor
O Serial data output to the CD-MP3 processor
I Input terminal for destination discrimination
I
SIRCS signal input from the remote control receiver
I Input terminal for destination discrimination
O Serial data transfer clock signal output to the CD-MP3 processor
Description