Sharp SD-AS10, Service Manual

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SD-AS10
8 – 13
ICG101 VHiBD3842FS-1: Input Selector (BD3842FS)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Pin No. Terminal Name Function
1 INA1 A 1ch input terminal.
2 INA2 A 2ch input terminal.
3 INB1 B 1ch input terminal.
4 INB2 B 2ch input terminal.
5 INC1 C 1ch input terminal.
6 INC2 C 2ch input terminal.
7 IND1 D 1ch input terminal.
8 IND2 D 2ch input terminal.
9* INE1 E 1ch input terminal.
10* INE2 E 2ch input terminal.
11 INF1 F 1ch input terminal.
12 INF2 F 2ch input terminal.
13 OUT2 2ch output terminal.
14 OUT1 1ch output terminal.
15 RECB2 B 2ch REC output terminal.
16 RECB1 B 1ch REC output terminal.
17 RECA2 A 2ch REC output terminal.
18 RECA1 A 1ch REC output terminal.
19 VCC (+) Power supply terminal.
20 BIAS Bias input terminal.
21 VEE (-) Power supply terminal.
22 DA Serial data & latch input terminal.
23 CL Serial clock input terminal.
24 DGND Digital ground terminal.
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
INA1
F-SW1 F-SW2
INA2 INB1 INB2
INC1 INC2 IND1 IND2
INE1 INE2 INF1 INF2
DGND CL DA VEE BIAS VCC RECA1 RECA2 RECB1 RECB2 OUT1
JSW2 JSW1
OUT2
LOGIC
+ - + -
+ - + -
Figure 8-13 BLOCK DIAGRAM OF IC