Read Sony CDX-GT430IP / CDX-GT43IPW Service Manual online
CDX-GT43IPW/GT430IP
27
• IC Pin Function Description
MAIN BOARD IC501 RSF3640MDA01FA (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
LCD SO
O
Liquid crystal display panel serial data signal output
2
LCD CKO
O
Liquid crystal display panel serial clock signal output
3
NOSE SW
I
Panel detection signal input
4
SIRCS
I
Remote control signal input
5
UNISO
O
S-BUS serial data signal output
6
UNISI
I
S-BUS serial data signal input
7
UNISCK
O
S-BUS serial clock signal output
8
BYTE
I
Connect to ground.
9
CNVSS
I
Flash write signal input Normally operation: “L”, Flash write: “H”
10
XIN
I
Low speed operation clock signal input (32.768kHz)
11
XOUT
O
Low speed operation clock signal output (32.768kHz)
12
RESET
I
System reset signal input
13
OSCOUT
O
High speed operation clock signal output (11.06MHz)
14
VSS
—
Ground
15
OSCIN
I
High speed operation clock signal input (11.06MHz)
16
VCC1
—
Power supply (+3.3V)
17
NMI
I
External pull up pin (fi xed at “H”.)
18
DAVN
I
RDS data block cycle detection signal input (Not used in this set)
19
BUIN
I
Back up power supply detection signal input
20
CDM ON
I
CD mechanism deck power supply control request signal input
21
Z MUTE
I
Mute signal input
22 to 25
NCO
O
Not used (Open)
26
SYNC-OUT
O
IPOD power supply timing signal output
27
DD-ON
O
IPOD power supply control signal output
28
BEEP
O
Beep signal output to power amplifi er
29
I2C SCK
O
I2C serial clock signal output
30
I2C SIO
I/O
I2C serial data signal input/output
31
FW TXD
O
Flash write interface serial data signal output
32
FW RXD
I
Flash write interface serial data signal input
33
FW CLK
I
Flash write interface serial clock signal input
34
FW BUSY
O
Flash write interface serial busy signal output
35
IPOD_TX
O
IPOD serial data signal output
36
IPOD_RX
I
IPOD serial data signal input
37
IPOD_DET
I
IPOD detection signal input
38
NCO
—
Not used (Open)
39
IPOD_ON
O
IPOD power control signal output
40
IPOD_OVER
I
IPOD charge over current signal output
41
EPM
O
Not used (Connected to ground)
42
RCIN1
I
Rotary commander shift key signal input (Not used in this set)
43
SYSRST
O
System reset signal output
44
BUSON
O
BUS ON signal output
45
NCO
O
Not used (Open)
46
CE
O
Flash write CNVSS signal output
47 to 51
NCO
O
Not used (Open)
52
CD_ON
I
CD mechanism servo power supply control signal input
53
TESTIN
I
Test mode detection signal input (Not used in this set)
54
TELATT
I
Telephone attenuate detection signal input (Not used in this set)
55
ACC_IN
I
Accessory power supply detection signal input
56
ATT
O
Audio mute control signal output
57
DIAG
I
Condition signal input from power amplifi er IC
58
AMPSTB
O
Standby signal output to power regulator IC
59
VOLATT
O
Not used (Open)
60
NCO
O
Not used (Open)
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