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3 7 63 1515 0
MAIN BOARD (1/4) IC401 μPD78F1106GF(S)-GAS-AX (SYSTEM CONTROL)
Pin No.
Pin Name
1
O-FRONT-A-MUTE
2
O-SURR-A-MUTE
3
O-CENTER-A-MUTE
4
O-SW-A-MUTE
5
REC-REV
6
O-TC-B-TRIG
7
O-EEP-SCL
8
O-EEP-SDA
9
O-DMP-SW
10
O-TC-A-TRIG
11
O-VIDEO-SEL
12
O-VIDEO-MUTE
13
I-AC-CUT
14
O-TC-CAPM-CNT
15
O-AUDIO_IC-DATA
16
O-AUDIO_IC-CLK
17
O-TC-REC/PB_SW
18
O-TC-REC-MUTE
19
O-TC-REC-BIAS
20
21
O-STK-MUTE
I-DMP-OVER-CUR-
22
TE
L 13942296513
O-SUR&CEN-SP-RE-
23
24
O-DVD-POWER
25
O-FRONT-SP-RELAY
26
27
O-TU-CLK
28
29
30
31
I-TU-TUNE
32
I-CDM-OPEN
33
I-CDM-TBL-ADR-SW
34
O-CDM-TM-F
35
O-CDM-TM-R
36
O-CDM-LM-F
37
O-CDM-LM-R
38
O-SW-SP-RELAY
39
I-DVD-KRMOD
40
O-MTK-MICREQ
41
O-MTK-IFBSY
42
O-MTK-MTRST
43
I-DVD-XIFS
44
O-MTK-DATA
45
I-MTK-DATA
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46
I-MTK-CLK
47
48
49
O-STBY-RELAY
.
50
51
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I/O
O
Front speaker output mute (L: mute ON)
O
Surround speaker output mute (L: mute ON) (HCD-GZR8D/GZR9D)
O
Center speaker output mute (L: mute ON) (HCD-GZR8D/GZR9D)
O
Subwoofer output mute (L: mute ON)
I
Tape deck signal input
O
Tape deck B trigger plunger control signal output
O
EEPROM communication (Clock) signal output
I/O
EEPROM communication (Data) signal input/output
O
DMP adaptor power supply control signal output (H: power supply)
O
Tape deck A trigger plunger control signal output
Video output select signal output (L: signal input from DMB18 board, H: signal input from
O
VIDEO/SAT (VIDEO IN))
O
Video output mute signal output (L: mute ON)
I
AC cut decision signal input (L: AC cut)
O
Capstan motor control signal output
O
R2A15216FP (IC101) communication (Data) signal output
O
R2A15216FP (IC101) communication (Clock) signal output
O
Tape deck control signal output
O
Tape deck B recording mute signal output
O
Recording bias control signal output
EVss1
—
Ground
O
Surround/center speaker amp ON/OFF signal output (H: amp ON) (HCD-GZR8D/GZR9D)
I
Not used. (Fixed at H in this set)
RENT
O
Surround/center speaker relay control signal output (L: relay ON) (HCD-GZR8D/GZR9D)
LAY
O
DMB18 board power supply control signal output
O
Front speaker relay control signal output (L: relay ON)
Tuner IC communication (Data: MCU t TUNER) signal output
O-TU-DI
O
O
Tuner IC communication (Clock) signal output
Tuner IC communication (Data: MCU T TUNER) signal input
I-TU-DO
I
O-TU-CE
O
Tuner IC communication (Chip enable) signal output
EVdd1
—
Power supply pin (+3.3 V)
I
Tuner tuned data input
I
Disc tray open signal input (L: open)
I
Disc tray position signal input
O
Disc table motor control signal output
O
Disc table motor control signal output
O
Disc tray motor control signal output
O
Disc tray motor control signal output
O
Subwoofer relay control signal output (L: relay ON)
I
Karaoke mode signal input (H: ON)
MIC IN information signal output (H: MIC IN, MCU t DMB18 board) signal output
O
O
Interface busy signal output
O
MTK IC reset signal output (L: reset)
I
Communication signal input from DMB18 board
Communication (Data: MCU t DMB18 board) signal output for DMB18 board
O
Communication (Data: MCU T DMB18 board) signal input from DMB18 board
I
I
Communication (Clock) signal input from DMB18 board
AVref1
—
Analog reference voltage (+3.3 V)
x
ao
y
O-FAN
O
Fan motor control signal output
O
Main power relay signal output (H: relay ON)
i
AVref0
—
Analog reference voltage (+3.3 V)
AVss
—
Analog ground
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8
Q Q
3
6 7
1 3
u163
.
HCD-GZR7D/GZR8D/GZR9D
2 9
9 4
2 8
Description
1 5
0 5
8
2 9
9 4
m
co
9 9
2 8
9 9
91
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