Ic Description - Aiwa NSX-TR77 Service Manual

IC DESCRIPTION -1/1 (LC876764A-50J3) -2/2
QQ
3 7 63 1515 0
Pin No. Pin Name
64 P24/AM9K
65 P25/FMWIDE
66 P26/LW
67 P27/R+R
68 P28/R+1
69 P29/MPX
70 P30/ECO-OFF
71 P31/DEMO
72 VDD4
73 P32/KARAOKE
74 P33/LED DEMO OFF
75 I-AUTO2
76 I-AUTO1
77 I-CST2
78 I-CST1
79 I-REB
80 I-REA
81 I-CAM2
82 I-CAM1
TE 83 NC
L 13942296513
84 NC
85 O-MOTOR
86 O-SOL1
87 O-SOL2
88 O-MUTE
89 VSS2
90 VDD2
91 NC
92 O-KSCAN
93 O-PLL_CE
94 O-POWER
95 O-CD_DATA
96 O-CD_CLK
97 O-CD_CE
98 I-SUBQ
99 I-DRF
100 I-WRQ
www
.
http://www.xiaoyu163.com
I/O
I/O FL segment output G24/AM9K diode input.
O FL segment output G25.
O FL segment output G26.
I/O FL segment output G27/R+R diode input.
I/O FL segment output G28/R+1 diode input.
I/O FL segment output G29/MPX diode input.
I/O FL segment output G30/ECO OFF diode input.
I/O FL segment output G31/DEMO diode input.
– VDD
I/O FL segment output G32/KARAOKE diode input.
I/O FL segment output G33/LED DEMO OFF detected diode input.
I DECK2 auto stop signal input.
I DECK1 auto stop signal input.
I DECK2 cassette detect switch data input.
I DECK1 cassette detect switch data input.
I DECK2 B side REC enable switch data input.
I DECK2 A side REC enable switch data input.
I DECK2 CAM switch data input.
I DECK1 CAM switch data input.
– Not connected.
– Not connected.
O DECK motor ON/OFF output.
O DECK1 solenoid output.
O DECK2 solenoid output.
O Amp mute ON/OFF output.
– GND
– VDD
– Not connected.
O Key scan timing output.
O TUNER PLL IC chip enable output.
O System power supply ON/OFF output.
O CD data output.
O CD clock output .
O CD chip enable output.
I CD SUBQ data input.
I CD focus on detect data input.
I CD interruption signal input.
x ao u163
y
i
http://www.xiaoyu163.com
2 9
8
Description
Q Q
3 6 7 1 3 1 5
co
.
-47-
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9