Read Sony HCD-VM330AV Service Manual online
58
HCD-VM330AV
Pin No.
Pin Name
I/O
Description
46
BUS XWRL
O
Not used
47
LO.BOOST
O
Low boost control signal output terminal Not used (open)
48
AUDIO MUTING
O
Audio muting on/off control signal output terminal “L”: muting on Not used (open)
49
LOAD OUT
O
Loading motor drive signal output terminal Not used (open)
50
LOAD IN
O
Loading motor drive signal output terminal Not used (open)
51
INSW
I
Disc detection (load in) switch input terminal Not used (fixed at “H”)
52
OUTSW
I
Disc detection (load out) switch input terminal Not used (open)
53
MODEL1
I
Destination setting terminal (open)
54
MODEL2
I
Destination setting terminal (open)
55
TBLL
O
Table motor drive signal output terminal Not used (open)
56
TBLR
O
Table motor drive signal output terminal Not used (open)
57 to 59
ENC1 to ENC3
I
Disc tray address detection signal input terminal Not used (open)
60, 61
—
O
Not used (open)
62
VCC
—
Power supply terminal (+5V)
63
—
O
Not used (open)
64
VSS
—
Ground terminal
65
V.MUTE
O
Video muting on/off control signal output to the Y/C decoder (IC304) “L”: muting on
66
DAC RESET
O
Reset signal output to the D/A converter (IC509)
67 to 72
A5 to A0
O
Address signal output for the external device Not used (open)
73
TEST LED
O
LED drive signal output for the self diagnosis indicator Normally: “L” (LED on)
74
TEST1
I
Setting terminal for the test mode 1 (for VCD check)
Normally: fixed at “H” (“L”: test mode)
Normally: fixed at “H” (“L”: test mode)
75
TEST2
I
Setting terminal for the test mode 2 (for SERVO check)
Normally: fixed at “H” (“L”: test mode)
Normally: fixed at “H” (“L”: test mode)
76
TEST3
I
Setting terminal for the test mode 3 Normally: fixed at “H” (“L”: test mode)
Not used (fixed at “H”)
Not used (fixed at “H”)
77
DEVICE RESET
O
System reset signal output to the CXD3068Q (IC101) and AN41020A (IC102) “L”: reset
78
STANDBY
O
Standby on/off control signal output terminal Not used (open)
79
FL CS
O
Chip select signal output terminal Not used (open)
80
OFF OUT
O
Blank control signal output terminal Not used (open)
81
LPH
O
Laser power control signal output terminal Not used (open)
82
LD ON
O
Laser on/off selection signal output to the CXA2581N (IC103) “H”: laser on
83
SUBQ CLK
O
Subcode Q data reading clock signal output to the CXD3068Q (IC101)
84
SUBQ DATA
I
Subcode Q data input from the CXD3068Q (IC101)
85
CL680 HRDY
I
Ready status detection signal input from the CL680T (IC505)
86
CL680 RESET
O
Reset signal output to the CL680T (IC505) “L”: reset
87
CL680 HSEL
O
Command selection signal output to the CL680T (IC505)
88
DF LATCH
O
Serial data latch pulse output to the D/A converter (IC509) “L” active
89
MIC CTRL
O
Mic control signal output terminal Not used (open)
90 to 92
KEY1 to KEY3
I
Key input terminal Not used (open)
93
NT/PAL
I
Video system (NTSC/PAL) select signal input terminal
94
MUSIC VOL
I
Volume input terminal Not used (open)
95
DSP DATA
O
Serial data output to the CXD3068Q (IC101)
96
AVSS
—
Ground terminal (for A/D conversion)
97
DSP LATCH
O
Serial data latch pulse output to the CXD3068Q (IC101)
98
VREF
I
Reference voltage (+5V) input terminal (for A/D conversion)
99
AVCC
—
Power supply terminal (+5V) (for A/D conversion)
100
AMP.ON
O
Power amplifier on/off selection signal output terminal Not used (open)
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