JVC KD-SX8250 Service Manual page 33

LC75412W(IC301):E.VOLUME
1.Terminal layout & block daiagram
48
49
50
51
52
53
54
55
LVref
56
RVref
57
58
59
60
61
62
63
64
1
2.Function
Symbol
Pin No.
54 L1 Single end input terminal
53 L2
52 L3
51 L4
55 L6
59 R1
60 R2
61 R3
62 R4
58 R6
50 L5M Differential motion input terminal
49 L5P
63 R5M
64 R5P
48 LSELO Input selector output terminal
1 RSELO
46 LCT Then terminal for roudness.CR for a high region amends is connected for LCT(RCT) and
3 RCT LVRIN(RVRIN),and CR for a low region amends is connected between LCT(RCT) and GND.
47 LVRIN Volume + equalizer input terminal.
2 RVRIN
47 46 45 44 43 42
LVref
Multiplexer
CONTROL
CIRCUIT
Multiplexer
RVref
2 3 4 5 6 7
41 40 39 38 37 36
ZERO CROSSDET
LOGIC CIRCUITVA
ZERO CROSSDET
8 9 10 11 12 13
Function
KD-SX8250/KD-SX780
35 34 33
CCB
INTERFACE
NO SIGNAL
TIMMER
14 15 16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
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