Kenwood KRF-V5050D Service Manual page 13

K L
(X07-3XXX-XX) (A/4)
FRONT/CENTER CH
IC2
+B
+B
R228
33K
1/4W
59.0V
-59.0V
-65.2V
B B
B B
D8 D9
+B
+B
59.0V
C401
1000P
65.3V
R236
Q203
47
R232 10K
Q202
Q207
R237
17
R233
Q205 10K
4.7K
16
Q206
D18
R234
220K
D19 D20 R242
Q208
R238
100
10K
1/4W
1/4W -65.2V
D14
R221 33K
D11
R220 75K
65.3V
D10
R219 75K
+B
B
R210
8.0V
100 1/4W
B
R262
1 1/4W
8.8V
+B
IC12
1
D37
D36
2
0.3V
3
C234 10u50
+
C233 0.01
-28.8V
W1
5.4V
14
E5
18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
P1
C
M N
FRONT/CENTER CH
IC4
C155
100P
B
+B
+B
R355
R317
470
30K
Q305
R354
R314
470
30K
Q304
R353
R313
470
30K
Q303
C133 C50
C139 18P C137 470P 470P 470P
R143 C135
1K R145 33K 100u10 R147
+
R135 R70
33K 33K
C56 18P C54 470P
R78 C52
1K R80 33K 100u10 R82
+
C55 18P C53 470P
R133 R68
11.7V
R77 C51
100K 100K
1K R79 33K 100u10 R81
+
+B
B
C315 470P
R207
Q201
100
-30.0V 63.5V
B
1/4W
D35 T1
8.0V
C209 R209
D4 D5
10u50 2.7K
+
-30.5V -14.5V
D33
D34
R261 T3.15AL 250V
W205
F2 CN8 CN9
T2.5AL 250V
R263
CN11 CN10
K5
Q215
J8
1 2 1 2 3 1 2 1
CN4 CN3 CN2 WH6
(K,P) : AC120V 60Hz
1 2
O P
R83
4.7
1/4W
L1
3uH
C151
100P
L2
3uH
R84
4.7
1/4W
R149
4.7 1W
L5
3uH
B
B B
-65.2V
+B
W13
+B
39.8V
R150
4.7 1/4W
L6
3uH
R119
4.7 1/4W
L3
3uH
C49
470P
L4
3uH
R120
4.7
R69
1/4W
33K
R67
100K
+B
B
65.3V
-65.2V
D1
B
39.8V
F1
B
-39.8V
D2
J8
2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
E2
3
WH2
5
Q R
R321
20.0V 150 1W
13.9V
K1
SP.A
J4
ON/OFF
SW
Rch
1
3.8V SPEAKER A
Q307
Lch
Cch
Q308
3.8V
2
Cch/SW
ON/OFF
SW
K2
WH7
R322
150
1W
13.9V
J5
G
Rch
Q310
SPEAKER B
3
Lch
SP.B
ON/OFF
K4
SW
SRch
20.0V
SURROUND
R323
150
SLch
1W
SL/SRch
J9
ON/OFF 13.9V
SW
K3
SRch
SURROUND
SLch
4
Q309 WH7
F
J6
SWch
SURROUND
SRch
C146
2200P
SLch
J7
R154
SWch
330
+B
E
12.0V
20.0V
IC5
D3 E1
R301
1
OUT IN +B 3
1/4W
GND 2
WH1
-12.1V
R302 4
GND
1
OUT IN B 1
1/4W
IC6
-21.0V
6
S T
2SA1534A 2SC3940A
2SA992
2SC1845
2SC2878
2SC2785
NJM4565D
DTC124ESA
2SC1740S
2SA1576A 2SD1819A
2SB1218A
2SB1132
KTA1273
E C
B
2SA1535A
2SC3944A
2SD1664 UN4212
UN4219
2SB1375 2SC4081