Read Sony CHC-P33D / HCD-H33D Service Manual online
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41
TABLE SENS
I
WOOFER LEVEL switch signal input
42
REQ. GM
I
Data transmission request input from system control
43
REQ. MG
O
Not used (Pull up)
44
CLK. MG
O
Clock output for communications with system control
45
D. GM
I
Serial data input from system control
46
D. MG
O
Serial data output to system control
47
RDY
I/O
System control Ready signal input/output “L”: READY
48
VAREF
I
Analog reference voltage input (+5 V)
49
VASS
—
Analog Ground
50
Vss
—
Ground
51
VDD
—
Power supply (+5 V)
52
URGENT. SIG
I
Not used (Pull up)
53
URGENT. STBY
I
Not used (Open)
54
BUG Y/N
—
Not used (Pull up)
55
ADJUSTOR
—
Not used (Pull up)
56
ADJUST 2
—
Not used (Pull up)
57
MAGIC SPEED
—
Not used (Pull up)
58
SPEC
I
Not used (Pull up)
59
DIST
I
Model Selection input (A/D converter)
60
SPEED
—
Not used (Pull up)
61
BREAK
—
Not used (Pull up)
62
B-PLAY
I
Deck-B PLAY switch input “H”: PLAY
63
B-SHUT
I
Deck-B Reel table signal input
64
B-HALF
I
Deck-B Record prevention claw A, B detection input
65
A-SHUT
I
Deck-A Reel table signal input
66
A-PLAY
I
Deck-A PLAY Switch input “H”: PLAY
67
A-HALF
I
Deck-A HALF Switch input
68
CAPM H/L
O
Capstan motor speed selector “H”: Normal speed “L”: High speed
69
CAPM ON/OFF
O
Capstan motor ON/OFF “L”: ON
70
TRIG H/L
O
71
B TRG
O
Trigger motor control output
72
A TRG
O
73
RELAY
O
Control output to REC/PB select switch (IC602) “H”: REC
74
A/B
O
Dolby IC PB input Deck A/B select output “L”: A, “H”: B
75
NORM/HIGH
O
EQ Select switch output for normal/high speed “H”: High speed
76
BIAS ON/OFF
O
BIAS Oscillation ON/OFF control “H”: High speed
77
RM ON/OFF
O
REC Mute output “L”: MUTE
78
REC/PB
O
Dolby IC REC/PLAY Select output “H”: REC
79
NR
O
Dolby ON/OFF Control output “H”: ON
80
LM
O
Line Mute output “L”: MUTE
81
PASS
O
PASS Amplifier switch output to Dolby IC (IC401)
82
CDG_MUTE
O
Woofer level control signal output
83
UP MOTOR
O
84
DOWN MOTOR
O
Not used
85
TABLE R
—
Not used (Open)
Pin No.
Pin Name
I/O
Function
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