Sony HCD-VX777 Service Manual page 50

HCD-VX777
Pin No. Pin Name
54 CAPM-H/L
55 CAPM-CONTROL
56 A-PLAY
57 B-PLAY
58 TC-MUTE
59 REC/PB/PAS
60 NR-ON/OFF
61 REC-MUTE
62 VCC
63 SOFT-TEST
64 VSS
65 BAIS
66 EQ-H/N
67 PB-A/B
68 ALC
69 TC-RELAY
70 A-HALF
71 NC
72 NC
73 DISPLAY KEY
74 POWER KEY
75 STBY LED
76 NC
77 NC
78 GAME/VIDEO
79 DBFB ON/OFF
80 GEQ-DATA
81 GEQ-CLK
82 LINE-MUTE
83 STK-MUTE
84 STBY-RELAY
85 REAR-RELAY
86 SURR-RELAY
87 FRONT-RELAY
88 PROTECT
89 A-SHUT
90 B-SHUT
91 B-HALF
92 MODEL-IN
93 SPEC-IN
94 FREQ-B
95 FREQ-A
96 AVSS
97 BOOSTER-IN
98 VREF
99 AVCC
100 AC-CUT
50
I/O
O Capstan motor High/Low speed control signal output.
O Capstan motor REV/FWD/STOP control signal output. H=REV, L=FWD/STOP.
I A deck play detect signal input.
I B deck play detect signal input.
O Tape deck line mute ON/OFF signal output. H=ON, L=OFF.
I REC/PB/PASS select signal input.
O DOLBY NR ON/OFF signal output. H=ON, L=OFF.
O REC mute ON/OFF signal output. H=ON, L=OFF.
— Power Supply.
O Not used.
— Ground
O BIAS ON/OFF signal output. H=ON, L=OFF
O EQ High/Normal select signal output. H=High, L=Normal.
O Playback deck A/B select signal output. H=deck B, L=deck A.
O ALC ON/OFF signal output. L=ON, H=OFF.
O Tape deck relay ON/OFF signal output. H=ON, L=OFF.
I A deck half detect signal input.
— Not used.
— Not used.
I Display key input.
I Power key input.
O Standby led signal output,H=ON, L=OFF.
— Not used.
— Not used.
O Game in selector output. L=GAME, H=VIDEO
O DBFB signal output. L=ON, H=OFF.
O GEQ IC data signal output.
O GEQ IC clock signal output.
O Line mute signal output. L=ON, H=OFF.
O Power amplifier mute ON/OFF signal output. H=ON, L=OFF.
O STANDBY relay control signal output.
O Rear speaker relay signal output. H=ON, L=OFF.
O Surround speaker relay signal output. H=ON, L=OFF.
O Front speaker relay signal output. H=ON, L=OFF.
I Speaker protect signal input. L=ON, H=OFF.
O A deck reel pulse detect signal output.
O B deck reel pulse detect signal output.
I B deck half detect signal input.
I MODEL input.
I Version select signal input.
O For booster amp signal output.
O For booster amp signal output.
— Analog ground.
I Booster encoder input.
— Analog Reference voltage.
— Analog power supply.
I AC cut check signal input. L=ON, H=OFF.
Function