Sony HCD-GTX999 Service Manual page 61

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Pin No. Pin Name
KEY_WAKE_UP_
73
DISPLAY
KEY_WAKE_UP_POW-
74
75 STANDBY LED
76 to 78
79 FAN-CTL1
80 STANDBY RELAY
81 OVERVOLTAGE
82 to 86
87
88 THERMAL VACS
89 AMP_PROTECT
90 STK-MUTE
91 SW SP RLY
92 FR SP RLY
93 SW LEVEL IN
94 SW ON LED
95
96
97
98
99
100 TA LINE-MUTE
TE
L 13942296513
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I/O
I Key input terminal for the power key
I Key input terminal for the display key
ER
O LED drive signal output terminal for the standby LED
NC - Not used
O Fan control signal output terminal
O Power on/off relay drive signal output terminal
I Over voltage detection signal input terminal
NC - Not used
HP DET I Headphone detection signal input terminal
I Not used
I Protect signal input terminal
O Standby signal output to the power amplifi er
O Subwoofer speaker on/off relay drive signal output terminal
O Front speaker on/off relay drive signal output terminal
I Subwoofer speaker level signal input from the SS-WG999
O LED drive signal output to the SS-WG999
NC - Not used
AVSS - Ground terminal
NC - Not used
VREF I Reference voltage (+3.3V) input terminal
AVCC - Power supply terminal (+3.3V)
O Muting on/off control signal output terminal
x ao
y
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8
Not used
Q Q
3 6 7 1 3
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HCD-GTX999
2 9 9 4 2 8
Description
"H": LED on
"H": power on
"H": headphone insert
"H": Subwoofer speaker on
"H": front speaker on
"L": muting on
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9
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