Sharp SD-AT1000H Service Manual page 49

IC501 VHiBD3811K1-1: Volume IC (BD3811K1) (2/2)
Pin No.
Terminal Name
52 VCC
53, 54 AGND7, AGND8
55 OUT1
56* BBNF1
57 OUT2
58* BBNF2
59 BNF22
60 BNF12
61 BNF21
62 BNF11
63 TNF1
64 TNF2
65 VIN1
66 GOUT1
67 AGND9
68 VIN2
69 GOUT2
70 AGND10
71* ROUT11
72* ROUT12
73* ROUT21
74* ROUT22
75 ROUT31
76 ROUT32
77 IN11
78 IN12
79 IN21
80 IN22
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
(+) Power supply terminal.
Analog ground terminal.
1ch output terminal.
1ch bass boost filter terminal.
2ch output terminal.
2ch bass boost filter terminal.
2ch bass filter terminal 2.
2ch bass filter terminal 1.
1ch bass filter terminal 2.
1ch bass filter terminal 1.
1ch treble filter terminal.
2ch treble filter terminal.
1ch (Lch) volume input terminal.
1ch (Lch) input gain output terminal.
Analog ground terminal.
2ch (Rch) volume input terminal.
2ch (Rch) input gain output terminal.
Analog ground terminal.
1ch REC input and output terminal 1.
2ch REC input and output terminal 1.
1ch REC output terminal 2.
2ch REC output terminal 2.
1ch REC output terminal 3.
2ch REC output terminal 3.
1ch input terminal 1.
2ch input terminal 1.
1ch input terminal 2.
2ch input terminal 2.
Function
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SD-AT1000H