Kenwood KRF-X7775D Service Manual page 32

BX BY
(X13- ) (B/6)
Y/C VIDEO
BUFFER
R644 C652
COMPOSIT
150 220u10
VIDEO SW
+
IC603
5.1V
IC605
Y VIDEO
BUFFER
Y/C MIX
R643 C651
5.1V
150 220u10
+
Y/C VIDEO
BUFFER
IC606
CN601
R670 C657
470 220u10
CVBS/Y 1
+
Y DET 2
SEP C 3
YC MIX IN 4
YC SE LB 5 CTI
YC SEL A 6 CTH
3 C ZONEA E 7 CTE
C ZONEA D 8 CTD
C ZONEA C 9 CTC
C ZONEA B 10 CTB
C ZONEA A 11 CTA
C640
100u10
YA OUT 12
+
AUX C 13
V. GND 14 TRAP
AUX Y 15
L601
Y SEL 16
6.3V
VCC +6V 17 +6.3V R661
5.1V
910
V +5V 18 +5V
V/REC MUTE 19
IC607
(2/2)
2
1
3
4
+5V
+6.3V
BZ CA
5.1V
+5V
IC601,602
Y/C VIDEO SW
+5V +5V
5.1V
IC603,604
CTL-A CTL-B OUT
L(OPEN) L(OPEN) IN1
L(OPEN)
H IN2
H L(OPEN) IN3
H H MUTE
C642
1u50
IC601
+
+5V
5.1V
5.1V
+5V
Y/C VIDEO
SW
IC604
CTB
CTA
C644
+5V
0.1
IC602
(BOTTOM VIEW)
R660
910
C
Q608-611
B.P.F.
(Y/C SIGNAL)
COMPARATOR
R667 R638 C638
Q609 Q608
3.3K 3.3K 1
Y C
ON :
EXCEPT
ON :
DVD
DVD
Q611 Q610
R637
27K
R635
1
+5V
R652 5.1V C655
COMPARATOR
100K 1000P
(Y/C SIGNAL)
IC607
D605
(1/2)
R653 8 6
R648
7
22K
100 5
+5V
+6.3V
CB CC
R617
Q601
100K
J601
C622 R618
Y
470u10 68
+
REC
R619 C623
68 0.1
C
R620
100K
Q602
R631
C624
47K
Y
100u10
+
PLAY
C625
0.1
Q601-604 C
Y/C
VIDEO MUTE
R621
Q603
100K
C626 R622
Y
470u10 68
REC
+
R623 C627
68 0.1
C
R624
100K
R632
Q604
47K
C628 J602
Y
100u10
V2Y
+
C629
V2C
0.1
C
V3Y
V3C
V4Y
V4C
C630
Q607
100u10 Y
+
C631
0.1
C
Q605
Q606
C632
D602
5.1V
Y
100u10
D604 D603 +
PLAY
C633
0.1
C
A
D601
Q605-607
C634
Y/C REC OUT MUTE
J603
Y
100u10
+
PLAY
C635
Q613 0.1
C
Y/C
VIDEO
MUTE
R625 C636
Y
68 470u10
+
MONITOR OUT
R626 C637
68 0.1
C
Q614
R645
47K IC501,601,602
IC502,603
IC503,605,606
+5.0V AVR IC504
(COMPOSIT & Y/C)
IC507
IC604,702,703
IC608
R687 IC607
1 6.3V
IC608,708
+5V OUT IN
IC701
5.1V GND
IC901
Q501,502,508,509,601-604,
613,614,715-717
Q504,505,605,606,608,609
Q506,607,610,611
D501,601
D502,602
D503,504,603,604
+6.3V
D605
VR-5080/5090 (3/6)
KRF-X7775D/X7775D-S (3/6)
CD CE
X13-E/6
-E1
5/6
F
X07-A/5
-CN4
5/6
VIDEO1
I
CAUTION: For continued safety, replace safety
X25-B/11
critical components only with manufacturer's rec-
-CN102
ommended parts (refer to parts list).
6/6
safety critical components. For continued protec-
J tion against risk of fire, replace only with same
type and rating fuse(s). To reduce the risk of elec-
X11-B/2
tric shock, leakage-current or resistance measure-
-CN12
ments shall be carried out (exposed parts are
4/6
acceptably insulated from the supply circuit)
before the appliance is returned to the customer.
K
VIDEO2 X11-B/2
-CN13
J604
DOLBY and the double-D symbol are trademarks
Y
4/6
of Dolby Laboratories Licensing Corporation.
PLAY
N
Noise reduction circuit made under license from
C
Dolby Laboratories Licensing Corporation.
X25-E/11
-E10
6/6
The DC voltage is an actual reading measured
Y
O
with a high impedance type voltmeter with a cas-
PLAY
VIDEO3
sette loaded at playback mode. The measurement
C
value may vary depending on the measuring
instruments used or on the product. Bias circuit
DC voltage is measured while in the record mode.
VIDEO4
DVD 6CH
: MM1140XFF
: BA7611AF
X25-A/11
: BA7623F
-WH1
: BA7649AF
: MM1508
6/6
: BA7612F
: NJM4565M
G
: UPC29M05HB
: BA7613
: MAX232NS
X25-A/11
-WH2
6/6
: 2SC4213(B)
H
: DTA124EUA or
UN5112
X25-D/11
: DTC124EUA or
-CN4
UN5212
6/6
: DAN202U or
1SS301
: DAP202U or L
1SS300
X35-
: MA111
CN1
: DA204U or
1SS302
5/6
M
KRF-X7775D/X7775D-S/VR-5080/5090
Y05-4210-10
CF CG
indicates