free hit counter
Download Print this page

Kenwood KRF-V7090D Service Manual page 11

Audio video surround receiver
Hide thumbs Also See for KRF-V7090D:

Advertisement

AE
AF
Q Q
(X09-6960-10) (A/4)
3 7 6 3 1 5 1 5 0
R388 470
PROTECTION
8
10
Q356
Q32,34
Q31,33
R384
POWER
R382
9.1K
POWER
R381
AMP
AMP
30K
30K
C358
Q32
4700P
Q34
Q31
20mA
20mA
R148
220 1/4W
220 1/4W
VR4
470
IDLE ADJ.(S Rch)
IDLE ADJ.(S Lch)
C134
22u50
22u50
+
C128
560P
Q30
SURROUND Lch
R134
Q26
2ND
R138
220
330 1/4W
1/4W
R136
D4
R132
5.6K
R140 47K
220
1/4W
C136
Q28
C126 15P
1/4W
150P
Q26
R130
C124
CURRENT
1.6K
220u10
MIRROR
+
C122 100P
R128
Q24
D28
1.5K
R122
6.8K
R126
1ST
1.5K
Q22
C116
330P
T E
L
1 3 9 4 2 2 9 6 5 1 3
R118
47K
R434
Q334
1K
SURROUND Rch
R114
100K
+15.1V
+60V
+47.2V
51.7V
60V
+12V
12.4V
w w w
13
11
9
7
5
3
1
2
1
15
14 13
12
11
10
9 8
WH10-1
14
12
10
8
6
4
2
.
X13-D/6-
3/5
AS-3
CN301
5/5
BL-4
AG
AH
+60V
R387 470
R408 470
PROTECTION
PROTECTION
R410
Q355
12
33K
Q358
R383
Q52,54
9.1K
R404
POWER
R402
9.1K
C357
AMP
30K
C360
4700P
Q33
4700P
Q52
Q54
R147
20mA
R198
220 1/4W
VR3
470
VR6
470
IDLE ADJ.(SB Lch)
C722
C133
22u50
+
+
C127
560P
Q29
R133
Q25
2ND
R137
220
330 1/4W
1/4W
R139 47K
D3
R131
R135
C125 15P
220
5.6K
C135
1/4W
1/4W
Q27
150P
R129
C123
Q25
1.6K
220u10
CURRENT
+
MIRROR
C121 100P
R127
D29
Q23
1.5K
R121
6.8K
R125
1ST
1.5K
Q21
C115
330P
R117
47K
R433
Q333
1K
SURROUND
R113
BACK Lch
100K
+15.1V
+15.1V
+47.2V
51.7V
60V
+12V
12.4V
+47V
8
-30V AVR
R309
R306
100
100
1/4W
Q304
R308
2.7K
ATT
x
a o
y
7
6
5 4
3
2
1
10
9
8
7
6
5
4
3
2
1
CN6
CN7
i
HI-TAP
ON : -62.9V
OFF : -56.7V
X14-A/11-
X14-A/11-
5/5
BL-5
WH92
WH91
AI
AJ
8
R100 33 1/4W
Q365
R475
7.5K
AMP.DC
PROTECTION
C368
4.7u50
+
Q364
R473
R474
1.5K
3.3K
R472
33 1/4W
100K
Q363
33 1/4W
C367
220u10
+
40
C370
1000P
R469
Q362
7.5K
D65
C366
4.7u50
SUPPLY
+
PROTECTION
R467
1.5K
Q361
D66
R466
Q360
100K
D68
33 1/4W
R463 82K
C365
33 1/4W
R464 82K
R465 100
220u10
+
R461 15K
R459 22K
R460 43K
R462 15K
R458 82K
1
R457 82K
2
R476
560 1/4W
+12V
D69
Q359
D63
R454
Q
Q
MUTE
3
7
6
3
390
R456
DRIVER
1W
10K
Q359
-6dB ATT.
DRIVER
R609
10K
R610
33 1/4W
10K
9
Q607
C364
C362
2.2u50
22u50
+
R607 100K
C369
R414
22u25
1.2K
ON : 3.2V
OFF : -11.8V
C363
C361
47u25
22u50
ON : 3.1V
OFF : -6.2V
+
+
R413
1.2K
+60V
+47.2V
51.7V
+12V
29.8V
+15.1V
12.4V
+47V
D27
2
R303
1
Q303
560
+47V
1/4W
+60V
HI-TAP
R318
ON : 62.9V
2.2K 2W
OFF : 56.8V
R321
R305
1 1/4W
+60V
220
Q305
Q307
D24
R327
330
D23
Q302
W251
Q313
Q305-308
LIMITER
u 1 6 3
Q308
60V
Q303
R328
+15V AVR
100
.
Q306
R322
60V
1 1/4W
R317 1.5K 2W
60V
19
AK
AL
KRF-V7090D/VR-9050/9060/9070
2
4
9
9
8
J5
L2 512nH
Lch
R331
1.8K 2W
K2
SPEAKERS
C39
100P
FRONT A
Q309
Rch
R335
RLY
47K
DRIVER
(FL/FR)
L1
12
Cch
CENTER
512nH
R99
R199
L5
WH4
512nH
R332
X13-D/6-
3
SR GND
CN304
1.8K 2W
2
SBL GND
K3
1
3/5
SL GND
Q310
WH1
4
SL ch
X13-D/6-
CN302
R337
3
SBL ch
47K
RLY
2
SR ch
3/5
DRIVER
1
GND
(C/SBL)
AW-1
13
L6
512nH
R200
R150
J6
L4
512nH
R333
Lch
K4
1.8K 2W
SPEAKERS
FRONT B
Q311
Rch
R339
47K
RLY
DRIVER
1
5
1
5
0
8
9
2
4
(SL/SR)
10
L3
CN8
X13-D/6-
WH303
512nH
2
1
SBR
R149
3/5
K5
SP.B
X13-E/6-
RLY
WH8
CN707
DRIVER
SBR
Q312
3/5
R340
WH9
4.7K
11
WH9
CN2
X14-D/11-
WH42
1
GND
+12V
2
+12V
5/5
3
GND
12.4V
4
-12V
BI-6
R62
820 1W
R61
820 1W
C609 10P
Q610
+47V
+58V
*D12
CN1
+60V
3
to MAIN
TRANSFORMER
2
Q305
5/5
C303
R319
1
0.01
2.2
m
4
X13-F/6-
WH6
CN702
+60V
1
+B
c o
3/5
60V
2
-B
+12V
CN9
R107
Q612
22K
Q611
1
to
D7
THERMISTOR
2
14
AM
AN
2
9
9
CAUTION: For continued
safety, replace safety critical
components only with manu-
facturer's recommended
parts (refer to parts list).
indicates safety critical com-
ponents. For continued pro-
tection against risk of fire,
replace only with same type
and rating fuse(s). To reduce
the risk of electric shock,
(X09- ) (D/4)
leakage-current or resis-
tance measurements shall
be carried out (exposed
parts are acceptably insulat-
ed from the supply circuit)
before the appliance is
AV-1
returned to the customer.
The DC voltage is an actual
reading measured with a
high impedance type volt-
meter with no signal input.
The measurement value
may vary depending on the
measuring instruments used
or on the product.
9
8
2
9
9
AV-1
AR-3
RECORDING LINE
SIGNAL LINE
GND LINE
B LINE
+B
B
B LINE
BY-4
AU-1
A
VR-9050/9060/9070 (2/5)
KRF-V7090D (2/5)
20
X09-6960-10 (A/4) (2/2)

Advertisement

loading