Read Sony CDC-Z137 Service Manual online
18
CDC-Z137
Pin No.
Pin Name
I/O
Pin Description
55
LCD-DI
I
LCD driver date signal input
56
REMOTE IN
I
Remote controller input, pulled up when not used, only CDC-X437 US model.
57
LED
O
Not used. (Open)
58
FM
O
FM/AM power switch output “H”=AM, “L”=FM
59
AM
O
FM/AM power switch output “L”=AM, “H”=FM
60
NC
—
Not used. (Open)
61
ACC DET
I
ACC (accessory power) ON/OFF LEVEL input OFF=fault mode.
62
CD INSIDE
I
Pick up inner track position detection (LMT SW)
63
TEST
I
CD test mode Pulled down when not used.
64
L IND
I
Voltage input for level indicater Pulled down when not used.
65
PH. MUTE
I
External mute control, “L”=–20 dB mute, pulled up when not used. (EUR)
66
RESET
I
System reset signal input “L”=system reset
67
ACC IN
I
ACC (accessory power) ON/OFF input OFF=fault mode.
68
SNS
I
Backup detection signal input
69
BATT IN
I
Input battery ON/OFF
70
IF (FM/AM)
I
IF count signal input (FM/AM)
71
EO3
—
Not used. (Open)
72
SUB PD
—
Not used. (Open)
73
VDD
—
Power supply pin
74
AM OSC
I
AM channel transmission input
75
FM OSC
I
FM channel transmission input
76
VSS
—
Connected to GND
77
EO2
—
Not used. (Open)
78
EO1
O
Error out from change pump (for FM/AM)
79
TEST1
—
Not used. (Open)
80
XOUT
O
System clock oscillator output (4.5 MHz)
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