Sharp CD-C492 Service Manual page 31

N)
+B
ON) +B
–B
+4V
RF50 1K
RLY
RF49 1K
ONT
SW RF48 1K
RF47 1K
RF46 1K
UT
RG55 1K
/T2
UT RF44 1K
EQ RF43 1K
P RF42 1K
RF41 1K
UT
RF40 1K
AS
D(M) RF39 1K
RF38 1K
SP
RF37 1K
TOR
RF36 1K
OL
RF35 1K RG17 10K
SW
RF34 1K RG20 10K
O S
RF33 1K RG21 10K
O S
RG22 10K
RF32 1K
P S
RF31 1K
P S
RG15 10K
+B
19
K
26
K
+12V(A)
+B
–B –15V
+B
AUX 2
AUX 1
L
R
AUX 1
AUX 2
1 2 3 4 5 6
28 29 30 31 32 33
VIDEO1 IN VIDEO2 IN
TO PRE SECTION
P28 2-G TO MECHA SECTION
7
QG01
KRC102 M CG03
RG35
3.3/50
1K KTC3199 GR
2 3
RG37
1
1K
DG05
RG39
CG04
1SS133
82
0.01
+B +4V
LG01
2.2µH
VOL
SECTION
VR CLK
IC
70 94
VR DATA
IC
69 95
VR LA TCH
IC
71 96
IC
53
VR DI
IC
59 98
FUNC A
IC
99
67
FUNC B
IC
68 100
L OUT
TUN L
86 34
TAPE L R OUT
15 35
AUX 1 C IN(C OUT)
28 36
SL IN(LS OUT)
AUX 2
31 37
SR IN(RS OUT)
TUN R
90 38
SW IN(SW OUT)
TAPE R
17 39
AUX 1 +4.6V
30 107
AUX 2 GND(D)
33 108
AC3-SWchOUT
39
AC3-RSchOUT
38
AC3-LSchOUT
3 7
AC3-Cch OUT
36
AC3-Rch OUT
35
AC3-Lch OUT
34
SPEC ANA
115
–15V
116
+12V
117
AGND
118
LT IN
119
AGND
120
RT IN
121
+B
7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22
TO DECK SECTION
P33 12-B P33 12-F
8 9
Figure 31 SCHEMATIC DIAGRAM (6/20)
CD GND(D2)
CD GND(D1)
GND(D)
+7.3V(CD)
+B
+12V(M)
+B
+4.6V(D)
DG03
1SS133
QG02 RG33
RESET
10K
POINT
RG34
10K
RG32
100
QG03 RG30 RG29
RG31 CG01
KTC3199 GR
150 150 470/10
1K
+B
REC L-CH
REC R-CH
23 24 27 34 35 36 37 38 39
TO PRE SECTION
P28 4-G
10
– 31 –
CD-C492/492C
–B
–15V
40
41 GND(A)
+B
+12V(A)
42
GND(D)
43
+B
+4.6V(D)
44
SWF-MUTE
45
REAR-MUTE
4 6
+B
CENT-MUTE
47
–B
S-MUTE
48
AMP CONT
49
50 SW RLY(4)
51 REAR RLY(3)
52 CENT RLY(2)
53 VOLT SW
SP PROT
54
POSISTOR
55
H/P SW
56
SP LEVEL
57
58 FAN CONT
59 FRNT RLY(1)
POWER
60
+B
61 +12V(M)
62 GND(M)
+B
63 +7.3V(CD)
64 CD GND(D1)
CD GND(D2)
65
66 VGND
+B
+5V(AC32A)
67
68 GND(D3)
69 GND(D4)
+B
+5V(AC32B)
70
OUT(L)
71
OUT(R)
72
RL OUT
73
RR OUT
74
C OUT
75
C IN
76
RL IN
77
RR IN
78
79 IN(L)
IN(R)
80
GND(A)
81
+B
+12V(A)
82
QS2SPRED
83
QS2AC
84
QS2MO
85
CFWU1
FWA1
SW IN(SW OUT)
10
C IN(C OUT)
9
L OUT(LIN)
8
SL IN(LS OUT)
7
R OUT(RIN)
6
SR IN(RS OUT)
5
AGND
4
V-SW(V1/V2)
3
LT IN
2
RT IN
1
CFWU2
FWA2
20
–B
A-15V
20
19 AGND
+B
18 A+12V
+B
17 +5V(AC32B)
16
VGND
+B
15 +5V(AC32A)
+B
+5V(AC32A)
14
GND(D3)
13
GND(D4)
12
DEM1
11
DEM0
10
9 SP CONF
DGTL1
8
SO
7
DGTL2
6
SS
5
AD RES
4
SI
3
AC32RES
2
SCK
1
1
11 12
10
1