Sony HCD-ZX50MD Service Manual page 103

Pin No. Pin Name
44 502-DATA
45 502-CLK
46 ST-CLK
47 ST-DIN
48 ST-DOUT
49 ST-CE
50 TUNED
51 STEREO
52 ST-MUTE
53 AMS-IN
54 TC-MUTE
55 R/PB/PAS
56 NR-ON/OFF
57 REC-MUTE
58 BAIS
59 EQ-H/N
60 PB-A/B
61 ALC
62 VCC
63 TC-RELAY
64 VSS
65 A TRIG
66 B TRIG
67 CAPM-H/L
68 CAPM-CONT
69 A HALF
70 A PLAY
71 B PLAY
72 IIC-BUSY
73 LOD-POS
74 LOD-NEG
75 OUT SW
76 MIDOUT SW
77 IN SW
78 MIDIN SW
79 CLP-POS
80 CLP-NEG
81 INIT SW
82 CNT-SW
83 to 85 ENC2, ENC1, ENC0
86 DISC-SENS
87 PRTC SW
88 SOFT-TEST
I/O
O Data output to sound processor
O Clock output to sound processor
O TUNER clock signal output.
I TUNER data input.
O TUNER data output.
O TUNER chip eneble output.
I TUNED detect signal input. L=ON, H=OFF
I STEREO detect signal input. L=ON, H=OF
O Tuner mute signal output.
I AMS signal input. L=ON,H=OFF"
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. L=ON, H=OFF
O BIAS ON/OFF signal output.H=ON, L=OFF
O EQ High/Normal select signal output. H=High, L=Normal
O Playback deckA/B select signal output. H=deckB, L=deckA
O ALC ON/OFF signal output. L=ON, H=OFF
— Power Supply (+5V)
O Tape deck relay ON/OFF signal output. H=ON, L=OFF
— Ground.
O A deck trigger control signal output.H=ON, L-OFF
O B deck trigger control signal output.H=ON, L-OFF
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 half detect signal input.
I A deck play detect signal input.
I B deck play detect signal input.
I IIC_BUSY(Not used.)
O CD loading motor control signal output
O CD loading motor control signal output
I Detection input from the tray open/close detect switch (S708) on the CD mechanism block
I Detection input from the mid out detect switch (S701) on the CD mechanism block
I Detection input from the tray open/close detect switch (S704) on the CD mechanism block
I Detection input from the mid in detect switch (S703) on the CD mechanism block
O CD elevator up/down motor (M701) control signal output to the motor driver IC (IC701)
O CD elevator up/down motor (M701) control signal output to the motor driver IC (IC701)
I Detection input from the INIT detection switch (S705) on the CD mechanism block
I Detection input from the count detect switch (S706) on the CD mechanism block
Detection input from the disc tray address detect rotary encoder (S707) on the CD
I
mechanism block
Detection input from the disc in detect sensor (D704 and Q703) on the CD mechanism
I
block
I Detection input from the CD tray door open/close detect switch (S702)
— Not used.
Descriptions
103