Sony HCD-ZX6 Service Manual page 61

Pin No. Pin Name
44 OC SW1
45 CHK SW
46 OC SW2
47 TBL NEG
48 TBL POS
49 LOG NEG
50 LOG POS
51 A PLAY
52 A TRIG
53 A HALF
54 CPM CNT2
55 REC A
56 B PLAY
57 B TRIG
58 REC (REV)
59 TC RELAY
60 BIAS
61 AMS IN
62 VCC
63 TC MUTE
64 VSS
65 AUDIO1 DATA
66 AUDIO1 CLK
67 AUDIO2 DATA
68 AUDIO2 CLK
69 ANALOG IN MUTE
70 VIDEO OUT
71 C RELAY
72 REAR RELAY
73 DISPLAY KEY
74 POWER KEY
75 GC RESET
76 STBY LED
77 HP DET
78 FR DET
79 HP MUTE
80 STK MUTE
81 PROTECT
82 ST CLK
83 ST DIN
84 ST DOUT
85 ST CE
86 TUNED
87 STEREO
88 ST MUTE
I/O
I Disc tray status detection signal input from CDM
I Disc tray status detection signal input from CDM
I Disc tray status detection signal input from CDM
O CDM turning motor control signal output
O CDM turning motor control signal output
O CDM loading motor control signal output
O CDM loading motor control signal output
I Deck A playback detection signal input "H": deck A play
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
I Deck B cassette forward side recording tab detection signal input
I Deck B playback detection signal input "H": deck B play
O Deck B side trigger plunger drive signal output "H": plunger on
I Deck B cassette reverse side recording tab detection input
O Recording/playback selection signal output "H": recording, "L": playback
O Recording bias on/off control signal output "H": bias on
Music detection signal input from automatic music sensor "L": track playback,
I
"H": playback of space between track. Use to detect track change.
— Power supply pin (+3.3 V)
O Tape playback muting on/off control signal output "H": muting on
— Ground pin
O Serial data signal output to audio signal processor
O Serial data transfer clock signal output to audio signal processor
O Serial data signal output to 4-ch volume IC
O Serial data transfer clock signal output to 4-ch volume IC
O Soft test signal output Not used in this set. (Open)
O Not used in this set. (Open)
I Not used in this set. (Open)
O Relay drive signal output for the surround speakers "H": relay on
I DISPLAY key press detection signal input (Interrupt input)
I POWER key press detection signal input (Interrupt input)
O Reset signal output to display control IC "L": reset
O LED drive signal output of POWER indicator "H": LED on
I Headphone connection detection signal input "H": headphone connected
O Relay drive signal output for the front speakers "H": relay on
O Headphone muting on/off control signal output "L": muting on
Power amplifier and sub woofer amplifier on/off control signal output
O
"H": amplifier on
Speaker protect detection signal input from speaker protect circuit
I
"L": protector on
O PLL serial data transfer clock signal output to the tuner unit
I PLL serial data signal input from the tuner unit
O PLL serial data signal output to the tuner unit
O PLL chip enable signal output to the tuner unit
I Tuning detection signal input from the tuner unit "L": tuned
I FM stereo detection signal input from the tuner unit "L": stereo
O Tuner muting on/off control signal output "H": muting on
HCD-ZX6/ZX8
Pin Description
61