Sony HCD-GNZ55D Service Manual page 71

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IC401 M30622MEP-A50FPU0 (SYSTEM CONTROL) (MAIN BOARD (1/4))
Pin No.
SW CHANNEL
1
SURR CHANNEL
2
3 SM LATCH 3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
TE
L 13942296513
21 VIDEO MUTE
22 VIDEO OUT SW
23 MIC DETECT
24
25 MIC STATUS
26 MTK RESET
27 MTK XIFCS
28 MTK BUSY
29
30
31
32
33
34 DVD A MUTE
35 MTK POWER
36
37
38
39
40
www
41
42 TBL SENSE
43
.
44
45
46
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Pin Name I/O
Signal path selection signal for sub woofer channel
O
SELECT "L": LFE, "H": Subwoofer out from M61537 Not used in this set. (Open)
Signal path selection signal for surround channel
O
SELECT "L": SL/FR (MTK), "H": Tone out from M61537 Not used in this set. (Open)
O Serial data latch pulse output to the S-Master Processor
SIRCS I Remote control signal input
NO USE I Not used. (Connect to ground.)
NO USE I Not used. (Connect to ground.)
NO USE I Not used. (Connect to ground.)
BYTE — Ground pin
CNVSS — Ground pin
XC IN I Sub system clock input (32.768 kHz)
XC OUT O Sub system clock output (32.768 kHz)
System reset signal input from the reset signal IC "L": reset After the power
RESET I
supply rises, "L" is input for several hundreds msec and then change to "H".
X OUT O Main system clock output (5 MHz)
VSS — Ground pin
X IN I Main system clock input (5 MHz)
VCC — Power supply pin (+3.3 V)
NMI I Non-maskable interrupt input
NO USE I Not used. (Connect to ground.)
NO USE I Not used. (Connect to ground.)
AC CUT I AC off detection signal input from the reset signal IC "L": AC Cut detected
O Video muting on/off control signal output "L": muting on
Composite video output switching output control
O
"L": DVD VIDEO output, "H": VIDEO VIDEO input
I Microphone connection detection signal input "L": headphone connected
KRMOD I Karaoke Mode detection signal input
Microphone status output to DVD Motherboard
O
"L": Microphone is not connected, "H": Microphone is connected
O Reset signal output to DVD Motherboard "L": reset
Communication Initialization Request Acknowledgement Signal from DVD
I
Motherboard
O Communication Initialization Request Signal to DVD Motherboard
IIC CLK I/O Clock signal for IIC communication between the microcomputer and the IIC checker
IIC DATA I/O Data signal for IIC communication between the microcomputer and the IIC checker
MTK SIO O Serial data output signal to DVD Motherboard
MTK SOD I Serial data input signal from DVD Motherboard
MTK CLK I Serial data clock signal to DVD Motherboard
O DVD analog signal muting on/off control signal output "H": muting on
O Power supply control signal to DVD Motherboard "H": Power supply on
ST CE O PLL chip enable signal output to the tuner unit
MC DIN I PLL serial data input from the tuner unit
ST CLK O PLL serial data transfer clock signal output to the tuner unit
MC DOUT O PLL serial data output to the tuner unit
TUNED I Tuning detection signal input from the tuner unit "L": tuned
OPEN SW I Eject detection signal input from CDM
x ao
I Disc tray position detection signal input from CDM
y
E3 I Disc tray status detection signal input from CDM
i
E2 I Disc tray status detection signal input from CDM
E1 I Disc tray status detection signal input from CDM
TM F O CDM turning motor control signal output
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HCD-GNZ55D
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Pin Description
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9
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