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Kenwood KRF-X9080D Service Manual page 17

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AE
AF
Q Q
(X09-6860-10) (A/4)
3 7 6 3 1 5 1 5 0
R388 470
PROTECTION
8
Q356
Q32,34
Q31,33
R384
POWER
R382
9.1K
POWER
AMP
AMP
30K
C358
4700P
Q32
Q34
Q31
20mA
20mA
R148
220 1/4W
VR4
470
IDLE ADJ.(S Rch)
C134
C722
22u50
22u50
+
+
C128
560P
Q30
R134
Q26
2ND
R138
220
330 1/4W
1/4W
R136
D4
R132
5.6K
R140 47K
220
1/4W
C136
1/4W
Q28
C126 15P
150P
Q26
R130
C124
CURRENT
1.6K
220u10
MIRROR
+
C122 100P
R128
D28
Q24
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
SURROUND Lch
100K
+15.1V
+B
+47.2V
48.3V
B
+12V
12.4V
w w w
21
19
17
15
13
11
9
7
5
3
1
15 14 13
12
11
CN5
20
18
16
14
12
10
8
6
4
2
.
X13-D/6-
3/4
CN301
BN-3
AG
AH
+B
R387 470
R408 470
PROTECTION
PROTECTION
10
Q355
12
Q358
R383
R381
9.1K
Q52,54
R404
R402
9.1K
POWER
30K
C357
AMP
30K
C360
4700P
Q33
Q52
4700P
Q54
R147
220 1/4W
20mA
R198
220 1/4W
VR3
470
VR6
470
IDLE ADJ.(S Lch)
IDLE ADJ.(SB Lch)
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
1.5K
Q23
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
48.3V
B
+12V
12.4V
+47V
80
-30V AVR
R309
R306
100
1/4W
Q304
R308
2.7K
ATT
x
a o
y
10
9 8
7
6
5 4
3
2 1
9 8
7
6
5
4
3
2 1
CN6
CN7
i
X14-A/11-
X14-A/11-
4/4
4/4
WH92
WH91
CG-5
CG-6
AI
AJ
8
Q365
R475
7.5K
AMP.DC
C368
PROTECTION
R410
4.7u50
33K
+
Q364
R473
R474
1.5K
3.3K
R472
Q363
100K
C367
220u10
+
40
C370
1000P
R469
Q362
D65
7.5K
C366
4.7u50
SUPPLY
+
PROTECTION
R467
1.5K
Q361
D66
R466
Q360
100K
D68
R463 82K
C365
R465 100
220u10
R464 82K
+
R461 15K
R459 22K
R460 43K
R462 15K
R458 82K
1
R457 82K
2
R476
560 1/4W
+12V
D69
Q359
Q
Q
D63
R454
3
7
6
3
MUTE
390
R456
DRIVER
1W
10K
-6dB ATT.
Q359
DRIVER
R609
10K
R610
10K
90
Q607
R453
C364
360
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
+B
+47.2V
48.3V
+12V
29.8V
+15.1V
12.4V
+47V
D27
2
R303
1
Q303
560
+47V
1/4W
+B
100
HI-TAP
R318
ON : 62.9V
2.2K 2W
OFF : 56.8V
R321
R305
1 1/4W
+B
220
Q305
Q307
D24
R327
330
D23
Q302
Q305-308
LIMITER
Q308
Q303
u 1 6 3
R328
+15V AVR
100
HI-TAP
.
ON : -62.9V
Q306
R322
OFF : -56.7V
B
1 1/4W
R317 2.2K 2W
B
27
AK
AL
KRF-X9080D/VR-8070/8060
2
4
9
9
8
J5
R100 33 1/4W
L2 512nH
Lch
R331
1.8K 2W
K2
C39
100P
Q309
Rch
R335
RLY
47K
DRIVER
(FL/FR)
L1
Cch
13
512nH
R99
33 1/4W
R199
33 1/4W
L5
WH4
512nH
R332
3
SR GND
1.8K 2W
2
SBL GND
K3
1
SL GND
Q310
WH1
4
SL ch
R337
3
SBL ch
47K
RLY
2
SR ch
DRIVER
1
GND
(C/SBL)
14
L6
512nH
R200
33 1/4W
R150
33 1/4W
J6
L4
512nH
R333
Lch
K4
1.8K 2W
Q311
Rch
R339
47K
RLY
DRIVER
1
5
1
5
0
8
9
2
4
(SL/SR)
11
L3
CN8
512nH
2
1
SBR
R149
K5
33 1/4W
SP.B
RLY
WH8
DRIVER
SBR
Q312
R340
4.7K
12
WH3
Q610
+58V
1
UNREG.
2
GND
3 V.REG.
WH9
WH9
+47V
CN2
1
GND
+12V
2
+12V
3
GND
12.4V
4
-12V
WH3
+47V
3 V.REG.
2
GND
C453
1 UNREG.
1000P
D12
CN1
+B
3
2
1
C303
R319
Q313
1
0.01
2.2
m
5
WH6
+B
1
+B
c o
B
B
2
-B
+12V
CN9
R107
Q612
Q611
22K
1
D7
2
15
A
AM
AN
2
CAUTION: For continued safety, replace
9
9
safety critical components only with man-
ufacturer's recommended parts (refer to
parts list).
indicates safety critical com-
ponents. For continued protection against
SPEAKERS
risk of fire, replace only with same type
FRONT A
and rating fuse(s). To reduce the risk of
electric shock, leakage-current or resis-
tance measurements shall be carried out
(exposed parts are acceptably insulated
from the supply circuit) before the appli-
CENTER
ance is returned to the customer.
The DC voltage is an actual reading
measured with a high impedance type
X13-D/6-
CN304
voltmeter with no signal input. The mea-
surement value may vary depending on
3/4
the measuring instruments used or on
BP-1
the product.
X13-D/6-
CN302
3/4
BQ-1
(X09-686) (D/4)
SPEAKERS
FRONT B
IC1
: NJM4580L
IC2
: M61516FP
Q1-4,21-24,41,43,308,359,
362,365,607
: 2SA992(F,E)
Q5,6,25,26,45
: 2SA1123(R,S)
9
8
2
9
9
Q7-10,27-30,47,49
: 2SC2631(R,S)
Q11,12,31,32,51,52
: TRAIT3N
Q13,14,33,34,53,54
: TRAIT3P
X13-D/6-
Q302
: UN4219 or
WH303
DTC113ZSA
Q303
: 2SC3940A(R,S)
3/4
BP-1
Q304,306
: 2SB1640
Q305,313
: UN421N
Q307
: 2SD2525
X13-E/6-
CN707
Q309-312
: KTC3200
Q331-335,605,606
: 2SC2878(B)
3/4
BL-3
Q353-358,360,361,363,364,
602-604
: 2SC1845(F,E)
Q610
: 2SD2012
Q611
: 2SC1740S(Q,R) or
KTC3199(Y,GR)
Q612
: 2SA933AS(Q,R) or
: KTA1267(Y,GR)
D1-6,16,28,29,32-35,53,54,57,58,
61,62,64,66,68,602-604
: 1SS133 or
HSS104A
D7,22
: MTZJ5.1(B)
RD5.1ES(B)
D8,26,63,65,67,69
: MTZJ3.9(B)
RD3.9ES(B)
D12
: TS6P03G-B or
DSBA20F03
X14-D/11-
D14,15
: S5688B
WH42
D17,19
: MTZJ16(B) or
RD16ES(B)
4/4
D18
: MTZJ15(B) or
RD15ES(B)
D20
: MTZJ6.2(B) or
CD-6
RD6.2ES(B)
D21
: MTZJ6.8(B) or
RD6.8ES(B)
D23
:
D24
:
D25,608
: MTZJ30(B) or
RD30ES(B)
D27,51,52,55,56,59,60
: 1SS244
D609
: MTZJ20(B) or
RD20ES(B)
to MAIN
TRANSFORMER
4/4
CT-4
CU-4
RECORDING LINE
SIGNAL LINE
X13-F/6-
GND LINE
CN702
B LINE
+B
3/4
BO-1
B
B LINE
to
THERMISTOR
VR-8070 (2/4)
KRF-X9080D (2/4)
28
X09-6860-10(A/4) (2/2)

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