HCD-GZR7D/GZR8D/GZR9D
91
Pin No.
Pin Name
I/O
Description
1
O-FRONT-A-MUTE
O
Front speaker output mute (L: mute ON)
2
O-SURR-A-MUTE
O
Surround speaker output mute (L: mute ON) (HCD-GZR8D/GZR9D)
3
O-CENTER-A-MUTE
O
Center speaker output mute (L: mute ON) (HCD-GZR8D/GZR9D)
4
O-SW-A-MUTE
O
Subwoofer output mute (L: mute ON)
5
REC-REV
I
Tape deck signal input
6
O-TC-B-TRIG
O
Tape deck B trigger plunger control signal output
7
O-EEP-SCL
O
EEPROM communication (Clock) signal output
8
O-EEP-SDA
I/O
EEPROM communication (Data) signal input/output
9
O-DMP-SW
O
DMP adaptor power supply control signal output (H: power supply)
10
O-TC-A-TRIG
O
Tape deck A trigger plunger control signal output
11
O-VIDEO-SEL
O
Video output select signal output (L: signal input from DMB18 board, H: signal input from
VIDEO/SAT (VIDEO IN))
12
O-VIDEO-MUTE
O
Video output mute signal output (L: mute ON)
13
I-AC-CUT
I
AC cut decision signal input (L: AC cut)
14
O-TC-CAPM-CNT
O
Capstan motor control signal output
15
O-AUDIO_IC-DATA
O
R2A15216FP (IC101) communication (Data) signal output
16
O-AUDIO_IC-CLK
O
R2A15216FP (IC101) communication (Clock) signal output
17
O-TC-REC/PB_SW
O
Tape deck control signal output
18
O-TC-REC-MUTE
O
Tape deck B recording mute signal output
19
O-TC-REC-BIAS
O
Recording bias control signal output
20
EVss1
—
Ground
21
O-STK-MUTE
O
Surround/center speaker amp ON/OFF signal output (H: amp ON) (HCD-GZR8D/GZR9D)
22
I-DMP-OVER-CUR-
RENT
I
Not used. (Fixed at H in this set)
23
O-SUR&CEN-SP-RE-
LAY
O
Surround/center speaker relay control signal output (L: relay ON) (HCD-GZR8D/GZR9D)
24
O-DVD-POWER
O
DMB18 board power supply control signal output
25
O-FRONT-SP-RELAY
O
Front speaker relay control signal output (L: relay ON)
26
O-TU-DI
O
Tuner IC communication (Data: MCU
t
TUNER) signal output
27
O-TU-CLK
O
Tuner IC communication (Clock) signal output
28
I-TU-DO
I
Tuner IC communication (Data: MCU
T
TUNER) signal input
29
O-TU-CE
O
Tuner IC communication (Chip enable) signal output
30
EVdd1
—
Power supply pin (+3.3 V)
31
I-TU-TUNE
I
Tuner tuned data input
32
I-CDM-OPEN
I
Disc tray open signal input (L: open)
33
I-CDM-TBL-ADR-SW
I
Disc tray position signal input
34
O-CDM-TM-F
O
Disc table motor control signal output
35
O-CDM-TM-R
O
Disc table motor control signal output
36
O-CDM-LM-F
O
Disc tray motor control signal output
37
O-CDM-LM-R
O
Disc tray motor control signal output
38
O-SW-SP-RELAY
O
Subwoofer relay control signal output (L: relay ON)
39
I-DVD-KRMOD
I
Karaoke mode signal input (H: ON)
40
O-MTK-MICREQ
O
MIC IN information signal output (H: MIC IN, MCU
t
DMB18 board) signal output
41
O-MTK-IFBSY
O
Interface busy signal output
42
O-MTK-MTRST
O
MTK IC reset signal output (L: reset)
43
I-DVD-XIFS
I
Communication signal input from DMB18 board
44
O-MTK-DATA
O
Communication (Data: MCU
t
DMB18 board) signal output for DMB18 board
45
I-MTK-DATA
I
Communication (Data: MCU
T
DMB18 board) signal input from DMB18 board
46
I-MTK-CLK
I
Communication (Clock) signal input from DMB18 board
47
AVref1
—
Analog reference voltage (+3.3 V)
48
O-FAN
O
Fan motor control signal output
49
O-STBY-RELAY
O
Main power relay signal output (H: relay ON)
50
AVref0
—
Analog reference voltage (+3.3 V)
51
AVss
—
Analog ground
MAIN BOARD (1/4) IC401
μ
PD78F1106GF(S)-GAS-AX (SYSTEM CONTROL)
