Sony HCD-VX3A Service Manual page 55

Pin No.
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66 to 71
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81 to 88
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100
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Pin Name I/O
BUS XWRL I Not used
LO. BOOST I Not used
AUDIO MUTE O Audio mute output "L" : mute
LOAD OUT I Not used
LOAD IN I Not used
INSW I Not used
OUTSW I Not used
MODEL 1 I L : System input (Fixed at "L")
MODEL 2 I L : System input (Fixed at "L")
TBLL I Not used
TBLR I Not used
ENC 1 I Not used
ENC 2 I Not used
ENC 3 I Not used
— – Not used
— – Not used
VCC – +5V power supply
— – Not used
VSS – Ground
A7 O Video mute output "L"
A6 to A1 I Not used
U to I I IIC convertion microcomputor transmittion input
TEST LED O TEST LED for MPEG decoder
TEST 1 I Test mode for Video CD check
TEST 2 I Test mode for servo check
TEST 3 I Not used
DEVICE RESET O Device system rest output "L" : reset
STANDBY I Not used
FL CS I Not used
FL I Not used
D7 to D0 I Not used
MIC CTRL I Not used
KEY 1 I Not used
KEY 2 I Not used
KEY 3 I Not used
NY/PAL I NTSC/PAL select switch input
MUSIC VOL I Not used
KEY 4 I Not used
AVSS – A/D converter ground
MODE. SW I Not used
VREF I A/D converter reference voltage input (Connected to +5V)
AVCC – A/D converter +5V power supply
AMP. ON I Not used
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Function
55