Sony HCD-GNX88 Service Manual page 57

• IC401 M30622MEP-A02FPUO SYSTEM CONTROL (MAIN Board)
Pin No. Pin Name
1 XRST
2 CD-DATA
3 XLAT
4 SIRCS
5 MP3 DATA OUT
6 MP3 DATA IN
7 MP3 CLK
8 BYTE
9 CNVSS
10 XC-IN
11 XC-OUT
12 RESET
13 X-OUT
14 VSS
15 X-IN
16 VCC
17 NMI
18 CD-CLK
19 SCOR
20 AC-CUT
21 SENS
22 MP3 RST
23 MP3 CS
24 MP3 LP
25 MP3 ACK
26 MP3 REQ
27 MP3 STB
28 XTCN
29 IIC-CLK
30 IIC-DATA
31 VMUTE
32 CD POWER
33 CDG DET
34 CDG/BGC
35 CDG RST
36 FAN KICK-OFF
37 CD MUTE
38 OPEN SW
39 TBL-SENS
40 E-3
41 E-2
42 E-1
43 TM-F
44 TM-R
45 LMF
46 LMR
47 A-PLAY
48 A-HALF
49 SW LED1
I/O
O Reset signal output to CXD3053AR
O Serial data output to CXD3053AR
O Serial data latch signal output to CXD3053AR
I Remote control signal input
O Serial data output to TC94A34FG
I Serial data input from TC94A34FG
O Serial data transfer clock output to TC94A34FG
I Not used (Connected to ground)
— Ground at test (Pull down)
I Sub system clock input (32.768KHz)
O Sub system clock output (32.768KHz)
I System reset input
O Main system clock output (16MHz)
— Ground
I Main system clock input (16MHz)
— Power supply (+5V)
I Not used (Pull up with resistor)
O CD data clock output
I Sub code sync (S0+S1) detection signal input
I AC off detection signal input
I Internal status detection monitor input from CXD3059AR
O Reset signal output to TC94A34FG
O Chip select signal output to TC94A34FG
O Latch pulse output to TC94A34FG
I Acknowledge signal input from TC94A34FG
I Request signal input to TC94A34FG
O Standby mode signal output to TC94A34FG
O Oscillation on/off control signal output to CXD3053AR and TC9411AFG
I/O IIC bus serial clock input/output
I/O IIC bus serial data input/output
O CDG video signal muting on/off control signal output
O CDG power on/off control signal output
I CDG disc detection signal input from TC9411AFG
O CDG/Blue background control signal output to TC9411AFG
O Reset signal output to TC9411 AFG
O Fan kick off pulse to start up fan rotation signal output
O CD muting on/off control signal output
I Eject detection signal input
I Disc tray position detection signal input
I Disc tray status detection signal input
I Disc tray status detection signal input
I Disc tray status detection signal input
O Table motor control signal output
O Table motor control signal output
O Table loading motor control signal output
O Table loading motor control signal output
I Deck A playback detection signal input
I Deck A cassette detection signal input
O LED drive signal output
Description
HCD-GNX88
57