Kenwood KRF-9060, Service Manual

Page: 12 / 34

AO AP AR AT AV AX AQ AS AU AW
2
1
3
5
7
4
6
KRF-V7090D/VR-9050/9060/9070
X13- (E/6)
21 22
47.6V
18.3V
+58.7V
-58.7V
A/4-
2/5
WH221
CN303
20dB ATT.
∗
Q412
∗
Q411
SB L
IC404(2/2)
20dB ATT.
20dB ATT.
SW
SB R
20dB ATT.
∗
Q407
∗
Q408
C
IC403
IC404(1/2)
IC403(1/2)
SWch
MUTE
Q320 Q310
Q317
Q319
Q318
Q309
Cch
Q308
Q307
SB Rch
SB Lch
A/4-
2/5
CN5
CN301
D402
D401
20dB ATT.
20dB ATT.
∗
Q406
∗
Q405
S R
20dB ATT.
S L
F R
IC402(2/2)
IC402(1/2)
IC401(2/2)
20dB ATT.
∗
Q403
∗
Q404
F L
IC401(1/2)
Q316
Q315
Q314
Q306
S Rch
Q305
Q304
S Lch
F Rch
Q313
Q312
Q311
ROOM B
Q303
Q302
F Lch
Rch
Q301
Lch
ROOM B
20dB ATT.
Q409
DRIVER
SUR. MUTE
Q402
DRIVER
SB MUTE
DRIVER
Q401
A/4-
CN302 CN304
2/5
WH4 WH1
A/4- 2/5
WOOFER
CENTER
J303
SURROUND
PRE OUT
FRONT
R
L
ROOM B
L
J302
SPEAKERS
J502
WH303
CN708
WH701
CN704
Q701
Q703 Q705
D701
D703
Q707
Q711
Q709
Q704
Q702
D704
Q706
Q712
Q710
D702
Q708
D708
D706
D710
Q714
Q716
CN707
CN703
Q718
Q720
CN702
WH704
CN706
2/5
WH6
X09-A/4-
2/5
CN58
A/4-
Q301-320,403-408,411,
412,701,702 : 2SC2878(B)-F
Q401,402,410 : DTA124EUA
Q703-706 : 2SA992(F,E)
Q707,708,711,712 : 2SC2631(R,S)
Q709,710
: 2SA1123(R,S)
Q714 : 2SC1845(F,E)
Q716 : KTC3200
D401 : MTZJ3.9(B)
D402 : MTZJ5.1(B)
D701-704,708,710 : 1SS133
D706
: 1SS244
SIGNAL LINE
B LINE
B LINE
GND LINE
SURROUND Lch
PROTECTION
(2/2)
IC401-404 RC45801P :
X09-
1ST
2ND
CURRENT
MIRROR
MIRROR
CURRENT
1ST
2ND
SURROUND BACK Rch
SURROUND BACK Rch
RELAY DRIVER
(SBR)
X09-
POWER
AMP
SURROUND
BACK Rch
IDLE ADJ.
(SB Rch)
X09-
X09- X09-
SURROUND R
SURROUND L
BACK R
SURRONUD
SURRONUD
BACK L
L
R
SURRONUD
BACK
SUB
R
L
Q720
Q718 TRAIT3KNNF
:
:
TRAIT3KPNF
A/4-
CN8
X09-
2/5
X09-
WH8
2/5
A/4-
CN59
A/4-
2/5
X09-
CN709
R
(X13-7960-10)
∗
J305
WOOFER
SUB
VR-9070/9070-S
USED
Q410
KRA103M Q409 :
USED
VR-9070/9070-S
R337 R307 R357 C439
SW IN
20dB ATT
SBL IN 4
2
3
GND 1
R454
470P C454
C452
22u50
+
22K
C453 470P R453
22K
C406
12.2V
22u50
C449
+
22u50
+
+1
1.7V
12.2V
C412
470P
R406
22K
22u50
C405
C41
1
+
470P R405
22K
C451
12.2V
∗
R460
6.2K
∗
R459
1.2K
∗
R463
∗
R464
10K
10K
R458
18K
22u50
+
R457
2.7K
C450
220u25
+
22
R462
R456 47K
4
5
6
7
R455 47K
C457 3900P
C458 10P
+11.7V
12.2V
∗
R412
6.2K
∗
R411
6.2K
∗
R440
10K
∗
R439
10K
R445
R446
18K
18K
C446
22u50
+
22u50
C445
+
6
22
R461
22
8
3
2
1
4
5
7
22
R423
R424
C429 10P
C430 10P
R418 47K
8
R417 47K
2
3
1
R310
220
Q301-310,
311-320
+
C440
10u50
R360
220
R340
47
220
220
R308
220
R309
47u25
+
C436
+
47u25
R352
1K
R351
1K
R320
1K
R319
1K
R359
220
220
C435
+
47u25
R358
R350
1K
R318
1K
1K
R349
220
R317
1K
220
220
R339
C309 R329
220
R330 100K C310
220P
220P
220
R338
R328 C308
220
R327
220
C307
220P
220P
10u50
C447
C402
17
16
SURR.
MUTE
19
18
2
22u50
C404
+
C410 470P
R404
22K
12.2V
+1
1.7V
C403
22u50
C409
+
470P
R403
22K
22u50
+
8
6
FR OUT 8
10
9
13
12
11
15
14
SBR
SBR OUT
SBL OUT
FR
SR
SR OUT
SL
C
FL
7
9
FL OUT
C OUT
SL OUT
MUTE 4
5
3
2
-12V
1
4
12.2V
+1
1.7V
12.2V
C408
470P
∗ R402
22u50
C407
+
C401
470P
∗ R401
R434
1/4W
15
+1
1.7V
R451
1/4W
1K
21
+12V
GND
20
+12V
R425
560
1/4W
12.2V
15
1/4W
+
R450
560 1/4W
R427
1K
R431
402
6
R443
18K
6.2K
6.2K
∗
R410
+11.7V
12.2V
∗
R438
10K
+
R444
18K
22u50
C444
∗
R409
∗
R437
10K
12.2V
+11.7V
C443
22u50
+
R422
22
4
5
6
7
C428 10P
R416 47K
22
22
R421
8
C427 10P
R415 47K
2
3
1
4
5
7
560
∗
R407
560
∗
R408
∗
R436
10K
∗
R435
10K
R441
1.6K
R442
1.6K
100u10
C442
+
C441
100u10
+
2
+11.7V
R449
C448
3.3u100
+
15K
R419
22
R420
C425 100P
C426 100P
R414 4.7K
8
R413 4.7K
2
3
1
10K
C438
22u25
R324 C304
R314 R346
220
R362
220
R305
R306
220
R315 R347
C434
47u25
+
9
401
R356
220
1K
R348
1K
R316
+
C433
47u25
47u25
+
R355
1K
220
1K
R354
220
1K 1K
R336
220
R326 C306
220
220P
220
R334
220
R335
R325
220
C305
220
220P
220P
220
R301
R302
R303
220
220
C432
+
C431
47u25
R345
1K 1K
R313
R344
R353
220
220
R342
1K
R341
1K
R312
1K
R31
1
1K
R343
220
R332
R333
220
47
R323 C303
220
220P
47
R331
C301 R321
100K
R322 100K C302
220P
220P
401
+11.9V
R447
10K
R448
330
12.2V
19
18
+11.9V
R432
R433
1K
402
10K
R430
1K
C437
22u25
R426
1K
SBL-GND SL-GND
1 2
100P
C317
C313
3300P
3300P
C31
1
SBL SBR-GND SR
1 2 3
SL
100P C733
4
C734
0.01
GND
GND
19
18
220u25
+
C419
3
SR-GND
SBR
C315 100P
C312
3300P
C316 100P
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
SBRch IN
SBR GND
SLch IN
SL GND
+15V
RLY GND
MUTE
A-CLASS-B
A-CLASS+B
SL NFB
SLch -OUT
SLch +OUT
CURR-PROT
DET-2
DC-PROT
RLY +B
RLY CONT
1
2
3
4
+IN
-IN
+OUT
-OUT
4
3
2
1
-OUT
+OUT
-IN
+IN
47K
R707 C707
1.5K
R717
1.5K R71
1
3.3K
R715
2200P
C709
C703 R705 C705 R709
1K
R703
R701
3.3u50
+
2.2K 3.3u50
+
100
100K
330P
5P
C711
6.8K
R713
C713 100P
220u10
C715
+
1.6K
R719
220
R723
220
R729 560P
C721
150P
C719
5.6K
R725
47P
C725
330
R727
1/4W
1/4W
1/4W
1/4W
R721 47K C717 15P
1.5K
C708
2200P
3.3u50 100 2.2K 3.3u50
R712
1K
R704
R708 C706 330P
R702
100K
47K
C702 R706
R714
6.8K
R710 C704
R722 47K
C716 15P
220u10
C714
220P
C712
R718
1.5K
1/4W
R728
330
1.6K
R720
+
R716
3.3K
R726
5.6K
1/4W
C718
150P
47P
C724
1/4W
C710
5P
220
R724
R730
220
1/4W
C720
1000P
1K
R732
22u50
C722
+
33K
R742
470
R740
15K
R744
100
R738
4700P
C728
30K
R734
9.1K
R736
2
3
1
4
K702
1.8K 2W
R752
4.7 2W
R748
0.22 ∗ C732
∗
C730
47K
R750
4.7K
R754
L702
33
R746
∗ W359
0.512uH
17 16 14 15 13
1/4W
13
14
15
16
17
4
3
2
1
3 NC
2
1
SBR-SP
NC
NC 2
SBR-SP 1
2
5
4
1
3
3
5
1
4
2
VR702
220
R760
220 1/4W
47 1/4W
R756
47 1/4W
R758
2
1
-B
+B
SBR-OUT
2
1
+50.5V
51.7V
51.7V
51.7V
51.7V
+50.5V
+50.5V
B
+B
+15.3V
B
+B
47P
C459
Q718,720
100u25
+
C420
+1
1.9V
20mA
R452
FC SW
ROOMB
MUTE
47u25
+
C463
47u25
+
C464
8
100P
C461
10
R467
100P
C460
10
R466
E EUROPE
VR-9070
VR-9070-S
VR-9060
VR-9060-S
KRF-V7090D-S
U.S.A.
CANADA
P
K
AUSTRALIA
CANADA
U.S.A.
X
P
K
VR-9050-S
MODEL NAME
KRF-V7090D
VR-9050 K U.S.A.
EUROPE
CANADA
E
P
COUNTRY
DESTINATION
ABB.
YES 2-71
0-12
NO
0-11
YES
YES
YES 2-71
0-10
UNIT No. J305
+11.9V
0
R80
R428
1K
R429
10K
C455
22u25
1K
R465
4
100K
18K
100K
100K
100K
R401,
402 411,412
Q403-408,
NO
NO
NO
YES
NO
459,460,463,464
NO
NO
R407-412,435-440,
NO
YES
NO 0.22
0.1
0.1
0.1
0.22
C730
YES
NO
NO
C732
YES
NO
NO
YES
YES
YES
NO
W359
+ +
(X13- ) (D/6)
(X13- ) (E/6)
(X13- ) (F/6)
KRF-V7090D (3/5)
VR-9050/9060/9070 (3/5)
CAUTION: For continued safety, replace safety critical com-
ponents only with manufacturer's recommended parts (refer
to parts list).
indicates safety critical components. For
continued protection against risk of fire, replace only with
same type and rating fuse(s). To reduce the risk of electric
shock, leakage-current or resistance measurements shall be
carried out (exposed parts are acceptably insulated from the
supply circuit) before the appliance is returned to the cus-
tomer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter with no signal input. The mea-
surement value may vary depending on the measuring
instruments used or on the product.
AC-7
AB-7
AL-4
AE-7
Y-6
AL-6
AL-4
AL-3 AL-2
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299