Sony HCD-GX8000 Service Manual page 50

HCD-GX8000/RG77
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Pin No. Pin Name
48
BU UP/DOWN-SW
49 TBL-SENS
50 CD-MUTE
51 A-TRG
52 B-TRG
53 AMS-IN
54 CAPM-H/L
55 CAPM-CNT1
56 A-PLAY
57 B-PLAY
58 TC-MUTE
59 SW-ON-LED
SW-MATRIX-
60
SURR-2-LED
61 REC-MUTE
62 VCC
63 SOFT-TEST
64 VSS
65 BIAS
TE
L 13942296513
66 EQ-H/N
67 PB-A/B
68 ALC
69 TC-RELAY
70 A-HALF
71 SW-LINK-LED
SW-MATRIX-
72
SURR-1-LED
73 DISPLAY-KEY
74 POWER-KEY
75 STBY-LED
AUDIO-OUT
76
GAME/VCD
AUDIO-OUT
77
ON/OFF
78
HP MUTE
79 HP-DETECT
80 LINE-MUTE
81 GEQ DATA
82 GEQ CLK
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83 STK-MUTE
84 STBY-RELAY
85 NO-USE
.
86 LINK-RELAY
87 FRONT-RELAY
88 PROTECTOR
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I/O
I
Optical pick-up up/down detection signal input terminal
I
Disc tray status detection signal input
O
CD analog signal muting on/off control signal output "H": muting on
O Deck-A side trigger plunger drive signal output "H": plunger on
O
Deck-B side trigger plunger drive signal output "H": plunger on
Whether a music is present or not from the automatic music sensor circuit
I
"L": music is present, "H": music is not present
O
High/normal speed selection signal output "L": high speed, "H": normal speed
O
Capstan motor drive signal output
I
Deck-A play detection signal input terminal "H": deck-A play
I Deck-B play detection signal input terminal "H": deck-B play
O
Line muting on/off control signal output to the automatic music sensor circuit "H": muting on
O
LED drive signal output terminal "H": LED on Not used
O
LED drive signal output terminal "H": LED on Not used
O
Recording muting on/off control signal output "L": muting on
—
Power supply terminal (+3.3V)
O Output terminal for the software test
—
Ground terminal
O
Recording bias on/off control signal output "H": bias on
O
Normal/high speed selection signal output "L": normal speed, "H": high speed
O Deck-A/B selection signal output "L": deck-B, "H": deck-A
O
Automatic limiter control signal output "H": limiter on
O
Recording/playback selection signal output "L": playback, "H": recording
I
Deck-A cassette detection signal input terminal "L": no cassette, "H": cassette in
O LED drive signal output terminal "H": LED on Not used
O
LED drive signal output terminal "H": LED on Not used
I DISPLAY key input terminal
I
I/1 key input terminal
O
LED drive signal output of the I/1 indicator "H": LED on
Video out game/video CD selection signal output terminal "L": video CD, "H": game
O
Not used
O
Audio out on/off control signal output terminal "H": audio out on Not used
O
Headphone muting on/off control signal output "L": muting on
Connection detection signal input of the headphone jack
I
"L": no connected, "H": headphone connected
O
Line muting on/off control signal output "H": muting on
O Serial data output to the audio signal processor
O
Serial data transfer clock signal output to the audio signal processor
O
Power amplifier on/off control signal output "L": standby mode, "H": power amplifier on
x ao
y
O
Main power on/off control signal output "H": power on
— Not used
i
O
Relay drive signal output for the surround speaker protect "H": relay on
O
Relay drive signal output for the front speaker protect "H": relay on
I
Protect on/off detection signal input from the speaker protect circuit "L": protect on
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Description
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