Kenwood KRF-X9995D Service Manual page 36

DL DM
(X07-335X-XX) (A/5)
R29
2nd
220 1/4W Q Q
R207
3 7 6 3 1 5 1 5 0 D51
100 1/4W
56.9V
55.8V 59.0V
+B
Q7
Q201 3
1.2V Q201,
56.2V R201 FINAL TR.
203
47 1
1/4W
4 Q205
-1.2V
2
5
34.3V
Q9
Q203 1 Q207
IDLE
4
ADJ.
2
-55.5V (FLch) R203
Q11
47 5
-56.0V
1/4W
Q205,
CURRENT LIMITTER
C25 7P
207
R209
3
D53
100 1/4W
R21
43K R227 1K
D3
-56.6V B
-59.0V
R30
2nd
220 1/4W
R208
100 1/4W D52
56.2V
59.0V
Q8 +B
55.8V Q202
1.2V 3
Q202,
R202 FINAL TR.
204
47
1
1/4W
4 Q206
-1.2V
2
5
34.3V
Q204
1 Q208
Q10 IDLE
4
ADJ.
2
(FRch)
-55.5V R204
Q12
47
5
-56.0V
1/4W
Q206,
CURRENT LIMITTER
C26 7P
208
R210
3
D54
100 1/4W
R22
43K R228 1K
D4
B
-59.0V
R115 2nd
220 1/4W
56.9V
R304
D91
100 1/4W
59.0V
+B
Q106
Q301
1.2V 3
Q301,
R301 FINAL TR.
302
47 1
1/4W
4 Q303
-1.2V
2
5
34.3V
Q302
1 Q304
Q104 IDLE
4
T E ADJ.
2
L 1 3 9 4 2 2 9 6 5 1 3
-55.5V (Cch) R302
Q105
47 5
-56.0V
1/4W
Q303,
CURRENT LIMITTER
C114 7P
304
R305
3
D92
100 1/4W
R111
43K R314 1K
D22
B
-59.0V
R79
2nd
220 1/4W
R257
100 1/4W D71
VR3
59.0V
Q57 +B
IDEL ADJ. Q251
3
Q251,
(SLch) R251 FINAL TR.
253
47
1
1/4W
1.2V 4 Q255
-1.2V
2
5
34.3V
Q253
1 Q257
Q59
4
2
-55.5V R253
Q61
47
5
-56.0V
1/4W
C75 Q255,
CURRENT LIMITTER
7P 257
3
D73
R259 100
R71
43K 1/4W R277 1K
D13
-56.6V
B
-59.0V
R80
2nd
220 1/4W
56.9V
R258
D72
100 1/4W
VR4
59.0V
+B
Q58
IDLE ADJ.
Q252
3
Q252,
(SRch) R252 FINAL TR.
254
47 1
1/4W
1.2V
4 Q256
-1.2V
2
5
34.3V
Q254
1 Q258
Q60
4
2
R254
-55.5V
Q62
47 5
-55.5V -56.0V w w w
1/4W
C76 Q256,
CURRENT LIMITTER
7P 258
3
-59.0V
D74
R260 100 B
R72
43K 1/4W R278 1K
D14
-56.6V +B
B
+17V
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
ponents. 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 resis-
tance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
DN DO
D55
+B
R219
D57
100K
FL2
R221
D59
100K
H.P
L1 RELAY
DRIVER
R229
22 1/4W 2.8V
Q354
12
FL1
R223 47K
R362
270
R225
1/4W
D61
33K
+B
B
C251 C253
SP. A
D56 0.22 0.22
RELAY
DRIVER
C255 0.1
+B
Q351
C256 0.1
R220
FR2 D58 11
100K
C252 C254
0.22 0.22
R356
R222
SP. A
D60 270
100K
ON: 2.8V 1/4W
+B
L2
R230
SP. B
22 1/4W
ON: 2.8V
R224 47K
Q352
FR1 D62
R226
14
33K
R357
270
1/4W
SP. B
+B
RELAY 28.0V
B DRIVER
D93
+B
Q353
R310
D94 SL/SRch/Cch
100K
C2
RELAY DRIVER
R311
100K D95
C259 C261
0.22 0.22
L5
Q353
C263 0.1
R315
22 1/4W 10
C264 0.1
R312 47K
C260 C262 R358
C1 D96 Cch/Surr 270
R313
0.22 0.22
: 2.8V
1/4W
33K
C269 C270
B
0.22 0.22
C271 0.1
R359
270
1/4W
D75
+B
R269
D77
LS2 100K
R451
R279
22 1/4W 1 1/4W
L3
Q421 59.0V
12.5V
+B
R271 Q423
56.9V
D79
100K
57.6V R455
R273 47K
390
LS1 Q427
D81 R275 1/4W
33K
B
Q421,422
Q428
POWER
LIMITTER
D76
Q423,424
CONT.
LIMITTER
C354 R456
+B
ON/OFF CONT.
47u100 W57 390
(SURR.MODE : ON)
+
1/4W
R270
RS2 D78
100K
R280 Q424
Q422
22 1/4W
-56.6V -12.4V
L4
R272
D80
100K
R274 47K
RS1 +B
D82
R276
33K
-59.0V
B B
x a o
y
B
. i
+17V
DP DQ
CN1
FL1 10
FL
FL2 9
FR1 8
FR
FR2 7
+B
C1 6
C
+B
C2 5
59.4V
LS1 4
SL
LS2 3
RS1 2
SR
RS2 1
K5 R384
8.2K
CN8
1
R361
2 1
470 2W
3
J1 +B
FAN
Lch
ON/OFF
K1
CONT.
SP A
25
Rch
28.0V
24
Lch
K2
SP B
Rch
+B
R392
100K
WH13-1 (1/2) BLK
13
WH10-1 (1/2) BRN
10
R393
WH17-1 (1/2) WHT
17 100K
WH16-1 (1/2) GRY
16
B
WH3 R394
4
10
1 SLch
B
K3 1/4W
-56.6V
Q Q
3
2 GND 3 7 6
R398
2 17.1V
2 2.7K
3 SRch 1/4W
1
4 Cch
K4
28.0V
+B +B
+17V
C308
D213 D215
11.9V
47u100
+
D201
D121 D122
D203
C307
Q425
10u100
W50
+
-35.0V
Q427,428
SURROUND or LIMITTER C306 10u100
STEREO MODE ON/OFF CONT.
+
DISCRIMINATION (ST MODE : ON)
D123
Q429
ST MODE : ON
SURR.MODE : OFF
-3.6V
D204
Q426
D202
R458
2K
D216 D214
11.9V
+B
B
u 1 6 3
indicates safety critical com-
DR DS
2 4
8 9 9
D107
CURRENT
PROTECTION
D108
Q383 Q384
Q381
Q382
E2
D105
VOLTAGE
PROTECTION
21
FAN
FAN DRIVER
CN6 WH5
Q404
M
+B 1 1 1
R510
2 2 2
1.8K 2W
3 3 3
Q402
Q401
Q403
FAN
THERMISTOR
CN7
H/L CONT.
2 2
19 1 1
59.0V
C405
0.01 WH12-1 (1/2)
WHT
D100
C406
0.01 WH11-1 (1/2)
(X07-) (B/5)
YEL
D102 D101
WH14-2 (2/2) C401 WH16-2
24000u75
WH14-1 (1/2) RED (2/2)
+
WH15-1 (1/2) GRY
WH15-2 (2/2) WH17-2
C402
3 1 5 1 5 0 8 9
YEL 24000u75 (2/2)
+ WHT
VR-5700/5900 ONLY
R401
33K
(X35-2260-12) (B/2)
Q406
Q405 R402
10K
R158
1K 1/4W
E3
CN5
NC
WH4
3 3
FAN +B
+B +B 2 2
RELAY GND
1 1
CN4
25 25 FAN ON/OFF
-56.6V
B
24 24 FAN H/L
23 1W
22 10W
R395
21 21 I. PROTECT
6.8K
20 20 V. PROTECT
1/4W
19 19 THERM SW
-35V
18 F. OFF
AVR
Q407 +12V 17 uCOM +12V
-34.5V
16 uCOM GND
15 RELAY POWER
D124
AZ-1
14 14 RELAY B I
13 G GND
12 12 RELAY H.P
11 11 RELAY A
10 10 RELAY CS
+B 9 FAN +B
8 RELAY GND
35V 7 -35V
6 RELAY TR
5 5 SP B/S-MUTE
4 4 F/C/SW-MUTE
3 3 PRE S-MUTE
2 2 PRE ZB-MUTE
1 1 OUTPUT-MUTE
m
R396
10K
E1
c o
1 uCOM GND
POWER 14.9V
Q408 WH2
+12V 2 uCOM +12V
RELAY
DRIVER 3 F. OFF
. 4 RELAY POWER
The DC voltage is an actual reading measured with a high impedance type voltmeter with a cassette loaded at
playback mode. The measurement value may vary depending on the measuring instruments used or on the
product. Bias circuit DC voltage is measured while in the record mode.
DT DU
(X25-) (F/11)
J7
WH5 E1
2
8 GND 3 9 9
PHONES
R127 2.2
1 Lch 2
R126 2.2
Rch 1
P2
2
(X25-) (J/11)
J1
CN2
Cch 1
CENTER
C
SRch 2
SPEAKER
GND 3
SLch 4
SL
SURROUND
SPEAKERS
SR
WH13-2
(2/2)
13
WH12-2
(2/2)
WH11-2
(2/2)
WH10-2
(2/2)
10
2 4 9 8 2 9 9
CN6
2
K1
1
D5 : MA111