Ic Description - Aiwa NSX-TR77 Service Manual

IC DESCRIPTION -1/1 (LC876764A-50J3) -1/2
QQ
3 7 63 1515 0
Pin No. Pin Name
1 I-DISH
2 O-LED_STB
3 I-STEREO
4 I-RDS_DATA
5 O-DSC/O-DATA
6 O-CLK
7 O-CLK_SFT
8 NC
9 I-IFC
10 O-BIAS
11 RESET
12 I-TM_BASE
13 I-SPEANA
14 VSS1
15 X1
16 X2
17 VDD1
18 I-HOLD
19 I-TRE
TE 20 I-BAS
L 13942296513
21 I-VOL
22 I-JOG
23 I-TU_SIG (MIC)
24 I-CDSW
25 I-KEY1
26 I-KEY2
27 I-KEY3
28 I-RDS_CLK
29 I-RMC
30 ~ 37 G1 ~ G8
38 NC
39 ~ 45 P1 ~ P7
46 VDD3
47 ~ 50 P8 ~ P11
51 FIX0
52 ~ 57 P12 ~ P17
58 P18/SPEANA_C
59 P19/SPEANA_B
www
60 P20/SPEANA_A
61 P21/RDS
.
62 P22/OIRT
63 P23/SW
http://www.xiaoyu163.com
I/O
I CD turntable photo sensor input.
O STB output for BU2092.
I TUNER stereo input.
– Not connected.
O FRONT • MAIN IC data output.
O FRONT • MAIN IC clock output.
O MICON clock shift output.
– Not connected.
I TUNER IF count serial data input.
O DECK BIAS output.
– System reset input.
I Reference clock input for timer watch.
I Input spectrum analyzer data input.
– GND
I 9.43MHz oscillator circuit.
O 9.43MHz oscillator circuit.
– VDD
I Power failure detected input.
I Rotary encoder TREBLE input.
I Rotary encoder BASS input.
I Rotary encoder VOLUME input.
I Rotary encoder JOG input.
– Not connected.
I CD mechanical switch A/D converter input.
I KEY1 input.
I KEY2 input.
I KEY3 input.
– Not connected.
–I System remote control signal input.
O FL grid output G1 ~ G8.
– Not connected.
O FL segment output G1 ~ G7.
– VDD
O FL segment output G8 ~ G11.
– GND
O FL segment output G12 ~ G17.
O FL segment output G18/SPEANA IC C output.
O FL segment output G19/SPEANA IC B output.
O FL segment output G20/SPEANA IC A output.
x ao u163
y
O FL segment output G21.
i
O FL segment output G22.
O FL segment output G23.
http://www.xiaoyu163.com
2 9
8
Description
Q Q
3 6 7 1 3 1 5
co
.
-46-
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9