Sony PMC-222V, Service Manual

Page: 36 / 58

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Pin No.
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98 to 100
I/O
O
I
—
I
O
—
O
O
I/O
O
O
I
O
I
—
—
—
Description
Main clock output (4.19MHz)
Main clock input (4.19MHz)
Digital ground
32.678kHz OSC input
32.678kHz OSC output
Not used (OPEN)
CD/VCD sound muting
Tuner block muting
Audio output muting
CD/VCD CC-CBUS Line
CD/VCD CC-CBUS Line
CD/VCD CC-CBUS Line
CD/VCD CC-CBUS Line
Reset input
Connected to ground
Not used (OPEN)
Bias power supply for LCD drive
Bias power supply for LCD drive
Pin Name
OSC1
OSC0
D-GND
XTI
XTO
NC (GND)
C MUT
B MUT
A MUT
CCE
BUO
BUI
BUCK
RST
NC (GND)
NC (OPEN)
VDDL
VDD1 to VDD3