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Kenwood Manuals
Receiver
KRF-X9992D
Service manual
Kenwood KRF-X9992D Service Manual page 24
Audio video surround receiver
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Also See for KRF-X9992D
:
Connection and setup manual
(145 pages)
,
User manual
(93 pages)
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Table of Contents
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EA
EB
X25
-A/7
POWER AMPLIFIER UNIT
-E7
(X07-293X-XX) (A/6)
5/6
CN1
10
10
Cch
9
9
1
S
8
8
SRch
Q1-10
7
7
FINAL TR.
6
6
IDLE
Rch
TEST
5
5
PIN
4
4
SLch
3
3
2
2
Lch
1
1
2
Q11-14,51-54,101,102
CURRENT LIMMIT
3
CN10
-VC
29
VC
+VC
28
+VC
GND
27
NFB
26
Cch
BIAS+
25
BIAS-
24
GND
23
NFB
22
SLch
BIAS+
21
X25
BIAS-
20
-A/7
GND
19
-CN51
NFB
18
5/6
SRch
BIAS+
17
BIAS-
16
4
R
GND
15
NFB
14
Lch
13
BIAS+
BIAS-
12
GND
11
NFB
10
Rch
BIAS+
9
BIAS-
8
GND
7
FAN
+B
6
+B
SECOND
5
5
RELAY
CS
4
4
CONT.
POWER
3
3
FAST/SLOW
2
2
FAN
CONT.
ON/OFF
1
1
5
X08-
6
C/7
-CN15
3/6
K
X08-
C/7
-CN13
3/6
L
7
+B
EC
ED
Q11-14,51-54,101,102
R27
CURRENT LIMIT
R35
D5
D11
100 1/4W
39K
1.0V
+VC
Q1
3
54.4V
+
53.4V
R1
47 1/4W
1
0V
R11
R33
3.3K
Q11
150K
4
+
0.4V
2
1/4W
0V
D9
0V
5
0V
0.3V
0V
Q3
IDLE
1
-1.0V
Q13
FLch
4
+
2
R3
0V
47 1/4W
5
+
-54.4V
3
R28
R36
D6
D12
100 1/4W
39K
1.0V
+VC
Q2
3
54.4V
+
53.4V
R2
47 1/4W
1
0V
R12
R34
3.3K
Q12
150K
4
+
0.4V
2
1/4W
D10
0V
5
0V
0.3V
0V
Q4
IDLE
1
-1.0V
Q14
FRch
4
+
2
R4
0V
47 1/4W
5
+
-54.4V
-1.0V
3
R77
R85
D55
D61
100 1/4W
39K
1.0V
1.0V
+VC
Q5
3
54.4V
R51
53.4V
47 1/4W
1
0V
R83
R61
150K
3.3K
Q51
4
R81
0.4V
2
D59
1/4W
33K
0V
5
0V
0.3V
0V
Q7
IDLE
1
-1.0V
Q53
SLch
4
BLSP
2
R53
47 1/4W
0V
5
-54.4V
-1.0V
3
R78
D56
D62
100 1/4W
R86
39K
1.0V
+VC
Q6
3
54.4V
R52
53.4V
47 1/4W
1
0V
R84
R62
150K
3.3K
Q52
4
R82
0.4V
2
D60
1/4W
33K
0V
5
0V
0.3V
0V
Q8
IDLE
1
-1.0V
Q54
SRch
4
BRSP
2
R54
47 1/4W
0V
5
-54.4V
-1.0V
3
R114
D103
D106
100 1/4W
R118
39K
1.0V
+VC
Q9
3
54.4V
+
R101
53.4V
47 1/4W
1
R106
R117
3.3K
Q101
150K
4
0.4V
+
2
1/4W
0V
D105
0V
5
0V
0.3V
Q10
Q102
IDLE
1
-1.0V
+
Cch
4
2
R102
47 1/4W
0V
5
+
-54.4V
-1.0V
3
VC
VC
+VC
+VC
EE
EF
+B
K1
A SP.
ON/OFF
R9
C5
C7
2.7 1W
0.33
0.33
R31
33K
C6
C8
0.33
0.33
+B
K2
B SP.
ON/OFF
VC
1
6
C55
C57
0.33
0.33
SURROUND SP.
ON/OFF
+B
K3
R32
33K
K4
C SP.
ON/OFF
VC
5
4
+B
D254
53.7V
D163
PROTECTION
53.4V
53.3V
Q163
0V
Q161
Q162
0V
+
0V
VC
3
1
3
D161
2
8
FAN HI:27.2V
R214
R215
FAN
1K 1/4W
1K 1/4W
LO:13.3V
ON/OFF
Q211
FAN HI:14.2V,LO:0V
FAN ON:0V
OFF:1.4V
FAN
Q212
Q215
R212
HI/LO
1K
R211
1K
HI:0V
1
D213
2
Q213
0V
+VC
VC
VC
7
+B
10
3
Q153
Q152
Q151
SUR.SP.
B SP.
A SP.
ON/OFF
ON/OFF
ON/OFF
DRIVE
DRIVE
DRIVE
R116
33K
ON:0V
ON:0V
ON:0V
OFF:30.4V
OFF:29.0V
OFF:29.0V
Q153
Q152
Q151
9
ON:4.3V
OFF:0V
VC
ON:4.3V
ON:4.3V
OFF:0V
OFF:0V
4
R256 220K
R257
R255 220K
10K
+B
5
EG
EH
J1
+
1
Lch
-
A SP.
-
2
Rch
+
FRONT SP.
+
3
Lch
-
B SP.
-
4
Rch
+
J2
+
1
Lch
-
SURROUND SP.
-
2
Rch
+
+
3
CENTER SP.
-
PHONES
(X11- ) (G/7)
P1
P2
CN6
WH6
R41
Lch
3
R556
1
470 2W
GND
2
10
2
R42
R555 10
Rch
1
J21
3
53.7V
470 2W
E8
+
R166
47K
(X07-) (E/6)
53.4V
Q164
63.6V
0V
TEMP.
SW
Q203
E11
E13
(105 C)
WH11
3
3
0V
R207
2
2
D162
10K
1
1
CN7
Q214
29.0V
+VC
1
1
1
+
FAN DRIVE
2
2
2
COOLING
FAN
3
3
3
FAN
HI:26.7V
LO:12.7V
(X07-) (F/6)
+
OFF:0.3V
+
+
+
WH12
3
3
2
2
TEMP.
SW
1
1
(65 C)
E12
E14
+VC
+VC
VC
+B
+B
3
D201
0V
4.2V
Q202
R203
33K
4.2V
TEMP.
LEVEL
+
DETECT
0V
Q201
E10
WH10
EI
EJ
(X25- ) (E/7)
WH1
E6
9
8
7
6
5
T1
4
23
3
22
2
W2
21
1
W1
20
19
(X07-) (B/6)
18
WH16 YEL
16
WH18 BLK
15
WH17 WHT
14
12
11
10
(X07- ) (C/6)
USED (E,E1) TYPE
J11
USED (T) TYPE
J11
E6
WH6
POWER
6
FAST OFF
5
+BR
4
uCOM +B
3
uCOM GND
2
+BZ
1
C254 0.01
54.4V
D251
D251,252
CONNECT
ON/OFF
C255 0.01
VC
+
+
+
-35.0V
-35 AVR
-34.5V
-52.2V
R310
1
B
1/4W
Q311
+B
POWER ON:0V
STAND BY:12.9V
Q301
R303
4.7K
POWER
ON/OFF
DRIVE
POWER ON:0.7V
STAND BY:0V
+B
+B
+B
K
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