Read Sony XR-C543SP Service Manual online
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Pin No.
Pin Name
I/O
Function
72
XT_OUT
O
Sub system clock output terminal Not used this set (open)
73
XT_IN
I
Sub system clock input terminal Not used this set (fixed at “L”)
74
AVDD
—
Power supply terminal (+5V) (for A/D converter)
75
AVREF
I
Reference voltage input terminal (+5V) (for A/D converter)
76
KEYIN
I
Key input terminal (A/D input)
77
KEYIN1
I
Key input terminal (A/D input)
78
D-BASS
I
D-BASS switch (SW970) input (A/D input)
79
VSM
I
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)
80
DSEL0
I
Setting terminal for the key
*1 motor control
MODE STOP
LOADING/
EJECT/
BRAKE
TERMINAL
FORWARD
REVERSE
LM_LOD (pin#§)
“L”
“H”
“L”
“H”
LM_EJ (pin#¶)
“L”
“L”
“H”
“H”
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