Toshiba MV20FM3 Service Manual page 81

Color television/video cassette recorder
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A
B
FROM/TO MICON
HD {2}
8
VD {2}
DEGAUSS_H {2}
POWER_FAIL {2}
OSD_R {2}
OSD_G {2}
OSD_B {2}
OSD_BLK {2}
SDA {2}
SCL {2}
AFT_M {2}
VCR_POWER_H {2}
X_RAY_TEST {2}
PROTECT_A {2}
H_CONTROL {2}
IIC_OFF {2}
7
6
TU1_AUDIO
R607
TEST POINT
CHROMA+13V
220 1/2W
CP602_1
07JQ-ST
5
7
INTELLGENT MONI
W812
B.OUT
6
B.OUT
AGC_M
5
AGC M
4
IIC OFF
3
SDA
2
SCL
R610
AFT_M
1
GND
100 1/4W
R601
AGC_M
13
12
2.2K
AGC
1
1.8
1/4W
2
NC
4
NC
3
2.5
SCL
4
2.5
SDA
5
2.5
NC
6
0
+5V
7
4.9
NC
8
0
29.5
+30V
9
NC
10
2.0
L601
3
IF
11
0
0.39uH
15
14
FROM/TO POWER
GND {2,4}
P.CON+8V
P.CON+5V[CHROMA]
AT+30V
P.CON+5V[TU1]
2
8.7VREF
5.7VREF[PCON]
5.7VREF[AT]
CHROMA+13V
P.CON+5V {2}
CAUTION: DIGITAL TRANSISTOR
1
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
A
B
C
CHROMA/IF SCHEMATIC DIAGRAM
R616
L620
L618
C676
220
47uH
33uH
150P CH
3.4
R620
2.7
CF604
BUFFER
6.8K
EFCT4R5MW5
0
Q601
2SA1037AK
CF603
EFCT4R5YS5A
2.0
2.0
48
47
46
R608
2.3
10K
W924
2.4
C625
2.3
AUDIO BYPASS
1 F
3.0
EXT AUDIO IN
NC
2.0
FM DIRECT OUT
NC
C632
3.2
VIF VCO F/B
50V
2.2
KA
9.0
VREG Vcc
R673
3.0
VIF APC FILTER
1.2M
C627
2.2
VIF VIDEO OUT
1 B
0
VIF GND
0
VIF GND
2.4
AFT OUT
C626
2.9
QIF IN
0.1 B
2.3
RF AGC OUT
C622
2.7
RF AGC FILTER
0.22 B
SAW FILTER
1.5
CF601_1
TSF5229P3
S802Y
1
2
1.5
5.0
C674
0.1 F
C635
16V
47
YK
C634
0.01 B
D603
MTZJ11B
W920
SW
Q651
2SC2412K
5.1
0
220 1/4W
0
R679
R687
47K
1K
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
(SYSCON PCB)
L610
100uH
9A06B
C648
16
50V
0.1
KA
D607
1SS133
C656
0.01 B
15
NC
NC
8.2
8.2
8.2
4.0
4.8
5.5
2.8
5.6
0
0
3.2
3.2
2.0
8.8
45
44
43
42
41
40
39
38
37
36
35
34
33
3.3
3.0
0
R IN
4.7
V PULSE OUT
0
G IN
46 SW REG CONT
34 EXT C in
47 LIMITER IN
33 8.7V REG OUT
0.1
FAST BLK
48 IF AGC
32 X'TAL
49 QIF OUT
31 ACL/ABCL
7.3
PROTECT
50 AUDIO OUT
5.0
fsc OUT
NC
VIDEO/CHROMA Vcc
CHROMA/IF IC
4.9
IC601
VIDEO/CHROMA Vcc
M61206FP
4.9
V RAMP CAP
4.8
V RAMP FEEDBACK
2.0
64 VIF IN
17 V OUT
B IN
1 VIF IN
16 B OUT
0
STRAT UP Vcc
8.2
8.2
3.8
3
4
5
6
7
8
9
10
11
12
13
14
15
16
5.0
2.6
3.6
0.8
2.5
0
0
3.6
3.4
3.9
4.8
2.5
2.5
2.4
C647
0.01 B
R631
6.8K
R658
2.2K
R659
R660
2.2K
D608
2.2K
D609
MTZJ6.8B
D620
D612
MTZJ6.8B
1SS133
MTZJ6.8B
R688
ATTENTION:
CAUTION:
SINCE THESE PARTS MARKED BY
ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D
E
F
G
(MFR'S VERSION B)
D605
ACL
11ES1N
W803
P.CON+5V
C665
MONITOR_V
16V
10
KANP
R638
5.6K
R643
VD
47K
C700
0.0012 B
OSD_BLK
C658
0.22 B
SOUND+B
SOUND_GND
H_OUT
W938
V_OUT
R641
ACL
27K
H_PLUSE
PROTECT_A
POWER_FAIL
X_RAY_TEST
W939
DEGAUSS_H
V_OUT
SW
Q604
D621
R651
KRA102SRTK
1SS133
100 1/4W
0.3
8.2
D619
8.2
1SS133
8.2
0.3
PROTECT
SW
Q609
2SC2412K
0
R653
10K
C734
0.001 B
R627
G.OUT
R.OUT
6.8K
B.OUT
R.SIGNAL
LES PIECES REPAREES PAR UN
ETANT
G.SIGNAL
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
B.SIGNAL
DANS LA NOMENCLATURE DES PIECES
F
G
H
8
TO Y/C/AUDIO/HEAD AMP
TU1_AUDIO
TU1_VIDEO
FROM/TO DIGITAL COMB FILTER
VD {2}
CP604
(CY901)
TO SOUND AMP
IMSA-9130B-06
P.CON+5V
1
SOUND+B
FSC
2
7
SOUND_GND {4}
GND
3
C IN
4
FROM IF
Y IN
5
MONITOR V.OUT
6
MONITOR_V
6
C683
6.3V
470
YK
FROM/TO DEFLECTION
CP820B
(CP820A)
B2013H02-13P
SOUND+B
1
5
SOUND_GND
2
H.OUT
3
GND
4
V.FEEDBACK
5
V.OUT
6
ACL
7
H.PLUSE
8
W942
PROTECT/TV_POWER_H
9
POWER_FAIL
10
X-RAY_TEST
11
VCR_POWER_H
12
DEGAUSS_H
13
4
3
TO CRT
2
CP805B
(CP805)
B2013H02-5P
GND
5
CUT OFF
4
G.OUT
3
R.OUT
2
B.OUT
1
PCB010
VMA245
1
DEFLECTION SIGNAL
ADD: R627
AUDIO SIGNAL(REC)
R653
TUNER VIDEO SIGNAL
C619
H

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