Aiwa XR-EM20 Service Manual page 38
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Also See for XR-EM20:
- Operating instructions manual (20 pages) ,
- Service manual (62 pages)
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IC DESCRIPTION - 6/6 (LC876748A-5Z32) - 2/2
Pin No.
Pin Name
72
VDD4
73
D-VDD
74
EZK-VDD
75
IN-ECO
76 ~ 84
NC
85
KSCAN1
86
O-MUTE
87
O-BIAS
88
O-TU-ON
89
AVSS
90
VDD2
91
I-RDDA
92
I-ST
93
I-TU/IFC
94
I-TMBASE
95
O-PLL CE
96
O-PLL CLK
97
O-MA DATA
98
O-REC
99
O-POWER
100
CD-ON
I/O
–
Digital power supply pin.
–
Not used.
–
Not used.
I
Not used.
–
Not connected.
I/O
Initial scan I/P.
O
Mute signal output.
O
Bias ON/OFF output.
O
Tuner power supply ON/OFF output.
–
Connect to GND.
–
Digital power supply pin.
I
Not used.
I
Stereo/Mono control signal input.
I
Tuner SD detection input/Tuner IF count input.
I
Reference clock input for timer switch.
O
Tuner PLL IC chip enable output.
O
PLL IC clock output.
O
IC BD3881FV (VOL & FUNC) control data output.
O
Cassette deck Rec/Play control output.
O
Power control ON/OFF output.
O
CD power supply ON/OFF output.
Description
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