Kenwood KRF-V9992D Service Manual page 22

DQ DR
X25-A/7
-E7
(X07-294X-XX) (A/8)
5/6 CN1
10 10
Cch
9 9
R
1
8 8
SRch
Q1-10
7 7
FINAL TR.
6 6
IDLE
Rch
5 5
TEST
PIN
4 4
SLch
3 3
0.4V
2 2
Lch
1 1
IDLE
FLch
2
0.4V
IDLE
FRch
CN10
3 -VC 29 -VC
+VC 28 +VC
GND 27
NFB 26
Cch BIAS+ 25
BIAS- 24
GND 23
NFB 22
SLch BIAS+ 21
BIAS- 20
X25-A/7
0.4V
GND 19
-CN51
NFB 18
5/6
SRch BIAS+ 17
BIAS- 16
IDLE
Q GND 15
SLch
NFB 14 BLSP
Lch BIAS+ 13
4
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 0.4V
IDLE
SRch
BRSP
5
X08- 0.4V
CN15
3/6
6 IDLE
L
Cch
X08-
CN13
3/6
M
VC
+VC
+B
7
DS DT
Q11-14,51-54,101,102
R27 CURRENT LIMIT R35
D5 D11
100 1/4W 39K
1.0V
+VC
Q1
3
64.8V
+
63.8V
R1
47 1/4W
1
0V
R11 R33
Q11
4 3.3K 150K
+
2
1/4W R31
0V D9
0V 33K
5
0V
0.3V
0V
Q3
1
Q13 -1.4V
4 +
2
R3
47 1/4W 0V
5
+
-64.8V
3
VC
1
6
R28 R36
D6 D12
100 1/4W 39K
1.0V
+VC
Q2 3
64.8V
+
R2 63.8V
47 1/4W
1 0V
R12 R34
3.3K Q12 150K
4
+
2
1/4W R32
D10
0V 33K
5
0V
0.3V
0V
Q4
1 -1.4V
Q14
4 +
2
R4
0V
47 1/4W 5
+
-64.8V
-1.0V
3
VC
5
4
R77 R85
D55 D61
100 1/4W 39K
1.0V
+VC
Q5
3
64.8V
63.8V
R51
47 1/4W
1
0V R83
R61 150K
Q51
4 3.3K
R81
2 D59
1/4W 33K
5
0V
0.3V
0V
Q7 -1.0V
1
Q53
4
2
R53
47 1/4W 0V
5
-64.8V
-1.0V
3
VC
3
8
R78
D56 D62
100 1/4W R86
39K
1.0V
+VC
Q6
3
64.8V
R52 63.8V
47 1/4W
1 0V
R84
R62 150K
3.3K Q52
4
R82
2 D60
1/4W 33K
0V
5
0V
0.3V
0V
Q8 1
-1.0V
Q54
4
2
R54
0V
47 1/4W 5
-64.8V
3
VC
7
10
R114
D103 D106
100 1/4W R118
39K
1.0V
+VC
Q9 3
64.8V
63.8V +
R101
47 1/4W
1
R106 R117
3.3K Q101 150K
4
+
2
1/4W R116
0V D105
33K
0V 5
0.3V
Q10
1 Q102 -1.4V
+
4
2
R102
0V 9
47 1/4W 5
+
-64.8V
-1.0V
3
VC
VC
+VC
DU DV
+B
C5 C7
K1
0.22 0.22
A SP.
ON/OFF
C6 C8
0.22 0.22
+B
K2
B SP.
ON/OFF
C55 C57
0.33 0.33
SURROUND SP.
ON/OFF
+B
C56 C58 K3
0.33 0.33
K4
C SP.
ON/OFF
C103 C104
0.22 0.22
+B
D254
64.1V
64.1V
D163
+
R166
PROTECTION
47K
63.8V
63.7V
63.8V
Q163
Q164
0V
63.6V 0V
Q161
Q162 0V
Q203
+
0V
0V
R207
3
10K
2
1
30.1V Q214
FAN HI:27.2V R214 R215 FAN DRIVE
1K 1/4W 1K 1/4W
FAN LO:13.3V
ON/OFF
Q211 FAN HI:14.2V,LO:0V
FAN ON:0V
OFF:1.4V
FAN
Q212
R212 HI/LO + + +
Q215
1K
R211
1K
HI:0V
1
D213
2
0V
Q213
+VC +VC
+B +B
VC
3
Q153 Q152 Q151
SUR.SP. B SP. A SP.
ON/OFF ON/OFF ON/OFF
DRIVE DRIVE DRIVE
D251,252
CONNECT
ON/OFF
ON:0V ON:0V ON:0V ON:0V
DRIVE
OFF:30.4V OFF:30.4V OFF:30.4V OFF:30.4V
Q153 Q152 Q151
Q154
W193
ON:1.8V
ON:1.8V
OFF:0V
ON:1.8V ON:1.8V
OFF:0V
OFF:0V OFF:0V
4
5
R256 220K
R257
R255 220K 10K
+B
DW DX
(X25- ) (E/7)
WH1
E6
9
8
7
J1
6
5
1 Lch
4
3
2
A SP. 1
(X07-) (B/8)
2 Rch
FRONT SP.
WH14 RED
WH16 YEL
3 Lch
WH18 BLK
WH17 WHT
B SP.
WH15 GRY
4 Rch
J2
1 Lch
SURROUND SP.
2 Rch
3 CENTER SP.
(X11- ) (G/7)
P1
P2
CN6 WH6
R41 Lch 3 R556
1
470 2W GND 2 10 PHONES
2
R42 R555 10
Rch 1 J21
3
470 2W E8
(X07-) (G/8)
TEMP.
SW
E11 E13 (105 C)
WH11
3 3
2 2
1 1
CN7
C254 0.01
1 1 1
+VC
2 2 2
COOLING 64.8V
+
FAN
3 3 3
D251
FAN
HI:26.7V
LO:12.7V D251,252
OFF:0.6V (X07-) (H/8)
+ CONNECT
ON/OFF
WH12
3
3
C255 0.01
VC
2
2 TEMP.
SW R251
1 1
470 1W
(65 C)
E12 E14
K5
+VC
+B
W196
VC
-64.8V
+B
3 D201
0V
4.2V
Q202
R203
33K
4.2V TEMP.
LEVEL
+
DETECT
0V Q201
E10
L
DY DZ
USED (K,P) TYPE
(X07- ) (E/8)
5
3
T1
23
1 0V
22
W5
21
W4
20 USED (M) TYPE
19
(X07- ) (E/8)
18
17
6 120V
16
5 0V
15
14 4 120V
13
3 0V
12
2 0V
11
10
(X07- ) (C/8)
USED (M) TYPE
C282
6800P
J11
USED (K,P) TYPE
J11
W187
W W
30.6V
E6 15V AVR
WH6
POWER
6
FAST OFF 5
Q302
+BR Q303
4
+B
15.9V
uCOM +B 3
15.3V
+B
uCOM GND
2
+
+BZ 1
5.7V
IC31 5.6V AVR
OUT IN
GND
+
WH14 RED
WH16 YEL
WH18 BLK
WH17 WHT
WH15 GRY
C257 0.01
+ + +
D252
-35.3
-35 AVR
C258 -34.8V
-61.2V
R310
0.01
1
B
1/4W
Q311
POWER ON:0V
STAND BY:12.9V
CN11
Q301
R303
4.7K POWER 6 POWER
ON/OFF
5 FAST OFF
DRIVE
POWER ON:0.7V
STAND BY:0V +B 4 +BR
+B 3 uCOM +B
2 uCOM GND
+B 1 +BZ
SIGNAL LINE
GND LINE
B LINE
+B
B B LINE