Tuner - Durabrand DBV4403 Service Manual

Video cassette recorder
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A
B
8
TU6001
TCMN0682PA13D
25
7
A.IN
CH
MB
CONTROL
V.IN
RF AGC
6
NC
CE
CLOCK
DATA
BM
PB 5V
FSC
TU 32V
5
IF TP
IF OUT
A.OUT
4
SIF OUT
AFT
V.OUT
27
3
2
NOTE:
THE DC VOLTAGE AT EACH PART WAS
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
MEASURED WITH THE DIGITAL TESTER
1
DURING PLAYBACK
A
B
G-9
C
TUNER SCHEMATIC DIAGRAM
RF-SW
SW6001
SLD-12-592
CH4
CH3
4
5
3
2
1
NC
26
R6006
RF_CONV_A.OUT
2
10K
3
W844
4
TV/VCR
5
R6004
6
1K 1/4W
8
NC
9
NC
10
IIC_CLK_A
11
IIC_DATA_A
12
L6002
+12V
P.CON+5V
13
22uH 0305
14
L6003
R6010
C6014
FSC
15
270 1/4W
15uH
0.001 Y
+32V
16
17
18
C6003_1
TUNER_V
16V
10
KA
TUNER_A
21
NC
W834
22
AFT-S.CURVE
23
24
28
0
SW
0
TUNER_L
Q6001
KRC103RTK
0
CAUTION:
SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
C
D
E
(SYSCON PCB)
VIDEO OUT
TP4201
R4212
C4209
390
R4206
16V
10
KA
390
R4201
470 1/2W
W815
0
MUTE SW
0
BUFFER
Q4203
2SC2412K
Q4201
0
KTA1266
3.3
R4210
2.6
100
0
E
1
2
H
ATTENTION:
LES PIECES REPAREES PAR UN
ETANT
ARE
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D
E
F
G
REAR OUT JACK
J4201_2
MSP-213V1-432 PB
E
E
1
4
3
2
5
H2
H1
H1
L
R
V
AUDIO_OUT-R
W804
AUDIO_OUT-L
0
R4207
MUTE SW
0
5.0
AT+5.2V
Q4204
0
MUTE SW
1K 1/4W
2SC2412K
0
Q4202
5.0
KRA103RTK
A_OUT_MUTE-L
R4211
1K 1/4W
VIDEO_OUT
W863
E
E
1
1
2
3
2
H
NC
H
CAUTION: DIGITAL TRANSISTOR
CAUTION: DIGITAL TRANSISTOR
F
G
H
8
7
6
5
4
3
2
RECORD LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PCB010
AUDIO SIGNAL(REC)
VMA224
AUDIO SIGNAL(PB)
TUNER VIDEO SIGNAL
1
PLAYBACK LUMINANCE SIGNAL
PLAYBACK COLOR SIGNAL
H
G-10

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