Sony HCD-H331 Service Manual page 16

Pin No. Pin name
46 X-LAT
47 TEST
48 VAREF
49 VA
SS
50 V
SS
51 V
DD
52 SPEC
53 DESTINATION
54 DISC SENS
55 TC RELAY
56 A-SHUT
57 B-SHUT
58 B-HALF
59 A-HALF
60 220 A PLAY
61 220 B PLAY
62 62427-LAT
63 K-CON-LAT
64 VOL-LAT (AV)
65 FRONT • SP RELAY B
66 REAR • SP RELAY C
––––––––––––––––––––––––
67 POWER ON
68 CD POWER
–––––––––––––––––––––––––––
69 PROLOG LAT
–––––––––––––
70 MUTE
71 COM CLK
72 COM DIN
73 COM DATA
–––––––––––––––––––––––
74 K-COM-ON
75 RIDDED LED
76 PROLOG ON
––––––––––––––––––––––––
77 DBFB HIGH
––––––––––––––––––––––––––––––––––––
78 URG STB STD BY
–––––––––––––––––––––––––
79 URG SIG ON
––––––––––
80 TC-A
––––––––––––––
81 NORM
––––––––––––––––––––
82 BIAS OFF
––––––––––––––––––––––
83 REC MUTE
––––––––––––––––
84 NR OFF
–––––
85 PB
––––––––––––––––––––––––––––––––––––––––
86 PASS • AMP/DOLBY
––––––––––––––––––––––––––––––––
87 LINE MUTE ON
–––––––––––––––––––––––––––––
88 CAP • M HIGH
89 A – TRG
90 B – TRG
I/O
O Serial data latch output to the DSP (IC103).
O Terminal for test mode.
– Reference Voltage for A/D converter. (+5V)
– Ground for analog (Ground).
– Ground .
– Power supply. (+5V)
I Terminal for mechanism selection.
I Terminal for model selection.
I Disc Sensor input terminal.
O REC/PB head selector signal output.
I Deck-A reel table detect. Not used.(Ground)
I Deck-B reel table detect. Not used.(Ground)
I Deck-B cassette detect. Not used.(Ground)
I Deck-A cassette detect. Not used.(Ground)
I Deck-A play detect. Not used.(Ground)
I Deck-B play detect. Not used.(Ground)
O Serial data latch output to IC 901.
O Not used (Open).
O Not used (Open).
O Front speaker Relay Drive output. Not used (Open)
O Rear speaker Relay Drive output. Not used (Open)
O Power ON output.
O CD power switch output.
O Not used (Open).
O Mute ON/OFF control.
O System clock (COM) output.
I Serial data input from tuner.
O Serial data (COM) output.
O Not used (Open).
O Not used (Open).
O Not used (Open).
O DBFB LOW/HIGH control.
O Not used (Open).
O Not used (Open).
O Deck A/B Selection output.
O NORMAL/HIGH Selection output. Not used (Open).
O Bias ON/OFF Selection output.
O REC Mute ON/OFF Selection output.
O NR ON/OFF Selection output.
O REC/PB Selection output.
O Dolby pass signal output.
O Line mute signal output.
O Capstan moter HIGH/LOW Selection output.
O Trigger motor control output. Not used (Open).
O Trigger motor control output. Not used (Open).
– 16 –
Description
L : ON
L : Mute ON
L : DBFB High
L : Deck-A
L : Bias OFF
L : Mute ON
L : NR OFF
L : PB
L : Mute ON
Not used (Open).