Kenwood KRF-X7775D Service Manual page 36

DL DM
1 (X35-2260-10) (A/2) : USED VR-5090
R153
1K
IC1
(Y) SIGNAL
1
J1
C10 R139
100u10 4.7
2
Y
+
3
C11 R140
100u10 4.7
VIDEO 3
Cb
INPUT + 4
C12 R141 5
+B
100u10 4.7
Cr
+
2
C22 10u50
R154 +
1K
J2
C13 R142
100u10 4.7
Y
+
IC1-3
C14 R143
100u10 4.7
DVD
Cb
INPUT +
(Cb/Pb) SIGNAL
C15 R144
100u10 4.7
Cr
+
3
+B
C23 10u50
+
(Cr/Pr) SIGNAL
+B
4
J3
R10 C16
68 470u10
Y
+
R11 C17
MONITOR 68 470u10
Cb
OUT
+
Q15-17
R12 C18 MUTE
68 470u10
Cr
+
5
R82
100
CN1
V. GND 1
D3
VC MUTE 2
V/REC MUTE 3
X13-A/6 CTRL A 4 4
-CN15
CTRL A2 5 5
CTRL B 6 6
3/6
V. VDD(+6V) 7 +6V
BE-7
C DET 8 8
M
V-SEL 9 9
+5.0V
CK DET 10 AVR
X13-A/6
-E2 CVBS/Y 11
IC8
FSC CTL 12
R151
C55
3/6 1
SEP. C 13
100u10
+6V IN OUT +5V
NC 14
+
6
GND
F
NC 15 3.6V
VCC(+17V) 16
X13-A/6
-CN14
3/6
I
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
X11-A/2
-CN2
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
4/6
resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
P
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
7
vary depending on the measuring instruments used or on the product. Bias circuit DC voltage is measured while in the record mode.
DN DO
8
9
Q8 Q10
10
SEL. DVD
A0 A1
5.1V
9
: ON
S2 R119
R90
+5V
S1 1
8 47K
D
Q8
+ R106
GND
7 W1 C102 3.3K
S4
47u16
R13
S3
1
6 5.1V
Q10
VDD +B
EN
+B
VR1
5.1V SUB COLOR
10K R25
VIDEO
SELECTOR 12K
IC2
VR2
10 10K R26 CONTRAST
A1
1
9 R120
A0 12K
S2
47K
910K
2
8
D
S1
3
C43
GND 7 W2
S4
22P
4 R14
S3 1
6 5.1V
VDD +B
5
EN
C45 R39
0.1u50 15K
+B
+
C46
0.01 C47
4.7u50
IC3
1 10
A0 A1
R128
9
S2
47K
2
8
S1 D
3
W3
GND 7 R30 5.1V
S4
1
R15
4
S3
6 5.1V 1
VDD +B
5
EN
C51
+B
+
0.1
C52
C24
10u50
+B 0.1 R41
IC4(1/3)
C53 180K
1u50
Q15 4 5
7
+
6 R42
11
R60 C54 43K
R65 1K
R80
0.01
47K 1K
+B
IC4(2/3)
VIDEO AMP
Q16 12
14
13
R63
R66 1K
1K
+B
R83
IC4(3/3)
1
Q17 10
8
9
R64
R67 1K
1K
+5V +5V
5.1V
+5V +5V
Q1
3.6V
3.0V
R46 Q2 R49 C59
(C)
1K 150 0.01 2.7V
SIGNAL
Q3 2.0V
(Y)
SIGNAL
DP DQ
Q7-10 Q7 Q9
SIGNAL(YES/NO) SEL. VIDEO
COLOR
DISCRIMINATOR
: ON
SIGNAL
COMPARATOR
+B +B
IC10 5.1V
R105 R107 C105 R111
Q7
(1/2)
3.3K 1.8K 1000P 100K IC10
(2/2)
R116
6 2 8
7 R112 1 10K
5 100 3
Q9
D4 4
R113 470
C107 1
Q11
COLOR
SIGNAL
DETECTOR
(OFF:NO SIGNAL)
+5V
V/Cb/Cr
DECODER
IC5
22 21
CPLS TCNT
23 20
R28
RO CCNT
R35 1
24 19
GO B-YI +B
25 18 5.1V
BO R-YI
C42
0.5V 26 17
CKF VCC
0.22 3.1V 16
YI
X1
R36 27
FSCO
15
2.4K
3.58MHz GND
1.7V 28
3.58
14 R22
B-YO
2.5V 1K
R24
R23 2.7K
13
R-YO
29 2.6V 1K C26
4.43
2.3V 30
18P
R21
APC 12
YO
100
2.1V
2.8V 31 11
FO VD
+
R40 32 10
HD
ACC
9
680K
BLK
C48 8
CKIL
7 5.1V R29
1
33
VCC +B
GND
10
34
4.5V
CIN
35
+B VCC 6
50/60
5
GND
R34 C34
2.6V 36 4.3K 2.2u50
4
VIN
AFC
+
3.2V
C33
1.7V 37
4700P
SUB
3 R33
32FH
1.8V 38
2.7K
CONT 2.7V
2.7V 39
SYNC
DF-2
0V 40
HDET
2 3.8V C32
32FH
OUTPUT-MUTE
390P
41
1 C31
FSCSEL
32FH
42
3.8V 270P
PAL/NT
R58
+5V
10K
IC1-3 : ADG704BRM
IC4 : CLC5623IM
IC5 : UPC1830GT
IC8 : UPC29M05HB
IC10 : NJM4565M
Q1,3,11 : 2SC4081(R,S) or
2SC4116(Y,GR)
Q2 : 2SA1576A(R,S) or
2SA1586(Y,GR)
Q7,8 : DTA124EUA or
UN5112
Q9,10 : DTC124EUA or
UN5212
Q15-17 : 2SC4213(B)
D3 : DAP202U or
1SS300
D4 : DA204U or
1SS302
indicates safety critical
P
DR DS
(X07-33XX-XX) (A/5)
+B
Q13
10.6V
C13
5P
5.8V
FLch
Q1,2,51,52,101
0.6V
MUTE
Q3
R17
Q11
C11 750
C1 R3 C3 2200P
3.3u50 2.2K 3.3u50 0V
+ +
-55.5V
Q1
10.0V
Q14
R156
10.6V
3.3K R157
470 C14
5P
FRch
0.6V
Q4
R18
C12 750
C2 R4 C4 2200P
3.3u50 2.2K 3.3u50 0V
+ +
-55.5V
Q2
R6
1K
C118 100P
R155
Q108
22 1/4W
Q107
+17V 10.6V
10.0V
C107
5P
R151
R153
47K
Q109 100
D253
Q102 Q103
CN3
0.6V
FLch 1
A GND 2 R109
Cch C106 750
FRch 3
C101 R102 C102 2200P
3.3u50 2.2K 3.3u50 0V
Cch 4
+ +
-55.5V
SLch 5
Q101
R103
SRch 6
1K
F/C/SW-MUTE 7
PRE S-MUTE 8 3
PRE ZB-MUTE 9 2
10 1
NC 11
Q63
10.6V
GND 12 10.0V
+17V 13 +17V
C63
5P
17.1V
SLch
Q53 Q55
0.6V
0V
R67
C61 750
C51 R53 C53 2200P
3.3u50 2.2K 3.3u50
+ +
-55.5V
Q51
R55
1K
5
Q64
C64
5P
SRch
Q54 Q56
0V
0.6V
R68
C62 750
C52 R54 C54 2200P
3.3u50 2.2K 3.3u50
+ +
-55.5V
R56 Q52
1K
+17V
DT DU
R29
2nd
15.5V
220 1/4W
R33 R207
4.7K 100 1/4W
56.9V
59.0V
55.8V
1st +B
Q7
Q201 3
1.2V Q201,
56.2V R201 FINAL TR.
203
47 1
1/4W
4
-1.2V
2
0V
5
Q5 34.3V
Q9 Q203
1 Q207
IDLE
4
ADJ.
2
-55.5V (FLch) R203
Q11
47
5
-56.0V
1/4W
C25 7P
R209
3
D53
100 1/4W
R21
43K
C15
100P
D3
-56.6V B
-59.0V
R30
2nd
220 1/4W
R34 R208
4.7K 15.5V 100 1/4W
56.2V
59.0V
1st +B
Q8
55.8V
Q202 3
1.2V Q202,
R202 FINAL TR.
204
47 1
1/4W
4
-1.2V
2
0V
5
Q6 34.3V
Q204
1 Q208
Q10 IDLE
4
ADJ.
2
-55.5V (FRch) R204
Q12
47
5
-56.0V
1/4W
C26 7P
R210
3
D54
100 1/4W
R22
43K
C16
100P
D4
B
-59.0V
R115
2nd
R117
220 1/4W
56.9V
4.7K
15.5V
R304
100 1/4W
1st
59.0V
Q106 +B
Q301
1.2V 3 Q301,
R301 FINAL TR.
302
47
1
1/4W
4
-1.2V
2
0V
5
34.3V
Q302 1 Q304
Q104
IDLE
4
ADJ.
2
-55.5V (Cch) R302
Q105
47 5
-56.0V
1/4W
C114 7P
R305
3
D92
R111 100 1/4W
43K
C108
100P
D22
B
-59.0V
R79
2nd
R83
220 1/4W
4.7K 15.5V
R257
100 1/4W
1st
VR3
59.0V
+B
Q57
IDEL ADJ.
Q251 3
Q251,
(SLch) R251 FINAL TR.
253
47 1
1/4W
1.2V 4
-1.2V
2
0V
5
34.3V
Q253
1 Q257
Q59
4
2
-55.5V R253
Q61
47
5
-56.0V
1/4W
C75
7P
3
D73
R259 100
R71
C65
43K 1/4W
100P
D13
-56.6V
B
-59.0V
R80
2nd
R84
220 1/4W
56.9V
4.7K 15.5V
R258
100 1/4W
1st
VR4
59.0V
Q58 +B
IDLE ADJ.
Q252
3 Q252,
(SRch) R252 FINAL TR.
254
47
1
1/4W
1.2V 4
-1.2V
2
0V
5
34.3V
Q254 1 Q258
Q60
4
2
-55.5V R254
Q62
47 5
-55.5V -56.0V
1/4W
C76
7P 3
-59.0V
D74
R260 100 B
R72
C66 43K 1/4W
100P
D14
-56.6V +B
B
+17V