Read Sony HCD-GTX88 / HCD-GTX88BP Service Manual online
71
HCD-GTX88/GTX88BP
Pin No.
Pin Name
I/O
Pin Description
51
PIO3
I
Gate signal input from the USB controller
52
VSS1
—
Ground pin
53
VDDT3
—
Power supply pin (+3.3 V)
54
SBSY
O
Subcode block sync signal output to the system controller
55
SBOK/FOK
O
Not used in this set. (Open)
56
IPF
O
Not used in this set. (Open)
57
SFSY/LOCK
O
Not used in this set. (Open)
58
ZDET
O
Zero detection signal output Not used in this set. (Open)
59
GPIN
I
Not used. (Connected to ground.)
60
MS
I
Microcomputer interface mode selection signal input Fixed at “H” in this set.
61
DOUT (PO6)
O
Digital audio data output Not used in this set. (Open)
62
AOUT1 (PO7)
O
Audio data output Not used in this set. (Open)
63
BCK (PO8)
O
Bit clock signal output to the USB controller
64
LRCK (PO9)
O
L/R sampling clock signal output
65
AIN (PI4)
I
Digital audio data input from the USB controller
66
BCKi (PI5)
I
Bit clock signal input from the USB controller
67
LRCKi (PI6)
I
L/R sampling clock signal input from the USB controller
68
VDD1
—
Power supply pin (+1.5 V)
69
VSS
—
Ground pin
70
AWRC
—
Not used in this set. (Open)
71
PVDD3
—
Power supply pin (+3.3 V)
72
PDO
O
Phase error margin signal between EFM signal and PLCK signal output
73
TMAXS
O
TMAX detection signal output Not used in this set. (Open)
74
TMAX
O
TMAX detection signal output
75
LPFN
I
Inverted signal input from the operation amplifier for PLL loop filter
76
LPFo
O
Signal output from the operation amplifier for PLL loop filter
77
PVREF
I
Reference voltage (+1.65 V) input
78
VCOF
O
VCO filter output
79
PVSS3
—
Ground pin
80
SLCo
O
EFM slice level output
81
RFi
I
RF signal input
82
RFRPi
I
RF ripple signal input
83
RFEQo
O
EFM slice level output
84
VRo
O
Reference voltage (+1.65 V) output
85
RESiN
O
External resistor connection pin
86
VMDiR
O
Reference voltage (+1.65 V) output for automatic power control circuit
87
TESTR
O
Low-pass filter terminal for RFEQO offset correction
88
AGCi
I
RF signal amplitude adjustment amplification input
89
RFo
O
RF signal generation amplification output
90
RVDD3
—
Power supply pin (+3.3 V)
91
LDo
O
Laser diode on/off control signal output to the automatic power control circuit
“H”: laser diode on
92
MDi
I
Light amount monitor input from the laser diode of optical pick-up block
93
RVSS3
—
Ground pin
94
FNi2 (C)
I
Main beam (C) input from the optical pick-up block
95
FNi1 (A)
I
Main beam (A) input from the optical pick-up block
96
FPi2 (D)
I
Main beam (D) input from the optical pick-up block
97
FPi1 (B)
I
Main beam (B) input from the optical pick-up block
98
TPi (F)
I
Sub beam (F) input from the optical pick-up block
99
TNPC
O
External capacitor connection pin
100
TNi (E)
I
Sub beam (E) input from the optical pick-up block
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