Aiwa XR-EM30 Service Manual page 48

IC DESCRIPTION -1/3 (LC876748A-5Z32) -2/2
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Pin No. Pin Name
71 I-RDS
72 VDD4
73 D-VDD
74 EZK-VDD
75 IN-ECO
76-84 NC
85 KSCAN
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-PLLCE
96 O-PLL CLK
97 O-MA DATA
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L 13942296513
98 O-REC
99 O-POWER
100 CD-ON
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I/O/C/P
I Not use.

Digital power supply pin.

Not use.

Not use.
I Not use.

Not use.
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 use.
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 putput.
O BD3881FP (VOL & FUNC) control data output.
O Cass. Deck Rec/Play control output.
O Power control ON/OFF output.
O CD Power Supply ON/OFF output.
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