Sony HCD-GTX66 Service Manual page 70

HCD-GTX66/GTX77
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3 7 63 1515 0
Pin No. Pin Name
49 LMR
50 STBY RELAY
51 ATRIG
52 A HALF
53 CAPM+
54 B TRIG
55 REC BIAS
56 TC RELAY
57 PB A/B
58 ALC
59 REC MUTE
60 TC MUTE
61 UNDER VOLTAGE DET
62 VCC
63 OVER VOLTAGE DET
64 VSS
65 CD USB MUTE
66 LINE MUTE
67 STK MUTE
68 HP MUTE
69 PROTECTOR
70 FRONT RELAY
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L 13942296513
71 LINK RELAY
72 SW SPK RELAY
73 DISPLAY KEY
74 POWER KEY
75 Z GROOVE FREQ
76 NO USE
77 CTRL 3
78 CTRL 1
79 M61530 DATA
80 M61530 CLK
81 M61529 DATA
82 M61529 CLK
83 NO USE
84 ST CE
85 ST DIN/MC DOUT
86 ST CLK
87 ST DOUT/MC DIN
88 FAN HI SPEED
89 A SHUT
90 B SHUT
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91 B HALF
92 MODEL IN
.
93 DEST IN
94 THERMA VACS
70
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I/O
O CD mechanism loading motor control signal output
O Main power on/off control signal output "H": power on
O Deck A side trigger plunger drive signal output "H": plunger on
I Deck A cassette detection signal input "H": cassette detected
O Capstan motor drive signal output
O Deck B side trigger plunger drive signal output "H": plunger on
O Recording bias on/off control signal output "H": bias on
O Recording/playback selection signal output "H": recording, "L": playback
O Deck A/B playback selection signal output "H": Deck A, "L": Deck B
O Automatic limiter control signal output "H": limiter ON
O Recording muting on/off control signal output "L": muting on
O Tape playback muting on/off control signal output "H": muting on
I Under-voltage protection detection signal input "H": under-voltage detected
— Power supply pin (+3.3 V)
I Over-voltage protection detection signal input "L": over-voltage detected
— Ground pin
O CD and USB analog muting on/off control signal output "L": muting on
O Line muting on/off control signal output "L": muting on
Power amplifier and sub woofer amplifier on/off control signal output
O
"H": amplifier on
O Headphone muting on/off control signal output "L": muting on
I Speaker protect detection signal input from speaker protect circuit "L": protector on
O Relay drive signal output for the front speakers "H": relay on
Surround speaker mode control signal output "H": link, "L": matrix surround 1/2
O
Not used in this set.
Relay drive signal output for the passive sub woofer output "H": relay on
O
Not used in this set.
I DISPLAY key press detection signal input (Interrupt input)
I POWER key press detection signal input (Interrupt input)
O Selector port to turn the Z-groove frequency response circuity
I Not used in this set. (Connected to ground.)
Effector circuity mode control 3 signal output "H": Chorus/Effector Off,
O
"L": Flanger/Delay.
Effector circuity mode control 1 signal output "H": Delay/Effector Off,
O
"H": Flanger/Chorus.
O Serial data signal output to 4-ch volume IC Not used in this set.
O Serial data transfer clock signal output to 4-ch volume IC Not used in this set.
O Serial data signal output to audio signal processor
O Serial data transfer clock signal output to audio signal processor
I Not used in this set. (Connected to ground.)
O PLL chip enable signal output to the tuner unit
I PLL serial data signal input from the tuner unit
O PLL serial data transfer clock signal output to the tuner unit
O PLL serial data signal output to the tuner unit
O Fan high speed control signal output for Themal VACS "L": Fan high speed on.
I Shut off detection signal input from deck A side reel pulse detector (A/D input)
I Shut off detection signal input from deck A side reel pulse detector (A/D input)
Deck B cassette detection, forward side recording tab detection and reverse side
I
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recording tab detection signal input (A/D input)
I Model setting pin (A/D input)
i
I Destination setting pin (A/D input)
I Temperature detection signal input from thermistor (A/D input)
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2 9
8
Pin Description
Q Q
3 6 7 1 3 1 5
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.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9