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Toshiba 20a42 - Chroma Schematic Diagram

Toshiba 20a42
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ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
X602
3.579545MHz
D605
11E1-EIC
D601
1SS133
D616
1SS133
D615
1SS133
D613
1SS133
Q608
KTC3203_Y
RED
Q603
KTC3203_Y
REG
Q606
KTC3203_Y
REG
Q605
KTC3203_Y
REG
Q604
KTC3203_Y
REG
Q609
KTC3198
SWITCHING
C638
1016V KANP
R629
12 2W
CAUTION: DIGITAL TRANSISTOR
Q607
KRA102SRTK
SWITCHING
IC601
M61250FP
CHROMA IC
1 101112
13 14 15 16
17 18 19
2
20 21 22 23 24 25 26 27 28 29
3
30 31 32
33343536373839
4
404142434445464748
49
5
50515253545556575859
6
6061626364
789
CF604
TPSRA4M50C00-A0
CF603
SFSRA4M50CF00-A0
GNDOUTOUTIN
CF601
TSF5229P3
SAW FILTER
1234
CP601
173979-7
1
2
3
4
5
6
7
DEFLECTION SIGNAL
B.SIGNAL
G.SIGNAL
R.SIGNAL
TUNER VIDEO SIGNAL
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
C606 0.01 B
C641 100P CH
C639
0.01 B
C637_1
0.01 B
C623 100P CH
C609
0.01 B
C636
220P B
C616
22P CH
C618
100P CH
C629
100P CH
C621
0.01 B
C602 0.01 B
C622
0.022 B
C655
0.0068 B
C634
0.01 B
C607 0.01 B
C613
163V MKT
C648_1
0.01 B
C653
0.1 B
C630
4716V YK
C646
150V YK
C604 150V KA
C612
100010V YK
C601
1006.3V YK
C603
150V KA
C632
0.150V YK
C628 0.150V KA
C624_1 150V YK
C625
150V KA
C645
4716V YK
C605
0.4750V KA
C635
4716V YK
C620
4.750V YK
C649
2.250V
KA
C647
150V YK
C619
1016V KA
C652
1050V KA
R611 10K
R614_1
2.2K 1/4W
R619 2.2K
R625 2.2K
R602
1K
R641
22K 1/4W
R627_1 100 1/4W
R630_1
100 1/4W
R631_1 100 1/4W
R617 220 1/4W
R636
33K
R644
47
R638_1
8.2K 1/4W
R642
6.8K
R601
1K
R635
100
R639
100
R628
100
R606
10K
R609
180
R615
470
R633
8.2K
R632
220 1/2W
R622
68
R608
120 1/2W
R613
56 1/4W
R621 10K
R607
1M 1/4W
R605 4.7K
R626_1
22K 1/4W
R646 27K
R643
10M
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
D603 MTZJ6.8B
D612 MTZJ12B
D611
MTZJ12B
D610 MTZJ12B
D602
MTZJ8.2B
W848
W817
W831
W832
L607
15uH
S803Y
S803X
UNREG+12V
GND
TU_VIDEO
GND
Y_IN
C_IN
STEREO+5V
FSC
GND
STEREO+5V
TU_AUDIO_OUT
GND AUDIO_OUT_L
AUDIO_OUT_R
CLOCK_CONT
VD
V_OUT
OSD_BLK
ABCL
STEREO+5V
RESET
SYNC
V_FEEDBACK
Y_VIDEO
GND
AT+5V
TUNER+5V
H_OUT
OSD_G
OSD_R
OSD_B
AGC
H_SYNC
IF
B.OUT
AFT
HD
G.OUT
PROTECT
R.OUT
CLAMP
GND
HD
POWER
OSD_B
OSD_BLK
OSD_G
VD
OSD_R
SYNC
I2C_OFF
SDA
SCL
FSC
CLOCK_CONT
7
5.5
0
5.5
7.20
0.027 2.0 2.08.03
NC
11
12
13
0 0.51
1.59
8.66 8.03
NCNC
TO AV
FROM/TO COMB/FILTER
FROM SOUND
FROM/TO DEFLECTION/CRT
5.5
7.2
4.9 7.2
10
PCB010
TMB540
(MAIN PCB)
CHROMA SCHEMATIC DIAGRAM
7.92
0.02
7.95
7.97
0
0
2.893.25002.841.965.62.598.763.17
5.75
2.26
2.32
2.3
3.158
3.07
3.2
0
0
2.28
4.7
2.25
2.59
2.59
1.53
1.53
4.91 2.21 4.94 3.84 2.11 3.53 0 0 0 0.72 2.3
2.0
3.69
0.84
4.06
4.88
2.93
2.86
2.88
0
4.74
4.92
4.92
5.02
2.6
5
2.77
5.67
TEST POINT
5.6
7.9
8.5
11.3
6
8.8
4.9
5.5
GND
SDA
SCL
IIC_OFF
INT.MONI
AUDIO_OUT_R
AUDIO_OUT_L
FROM POWER
FROM/TO MICON/TUNER
8
9
TO SOUND
R OUT
G OUT
VIF Vcc
VIF Vcc
V OUT
V RAMP FEEDBACK
AFC FILTER
DEF GND
DEF GND
FBP IN
H OUT
STRAT UP Vcc
INTELLIGENT MONI
INV FBP OUT
V PULSE OUT
B IN
R IN
G IN
FAST BLK
CLOCK CONT
SDA
SCL
POWER ON CONT
MCU RESET
Y SW OUT
VIDEO/CHROMA GND
VIDEO/CHROMA GND
CHROMA APC FILTER
EXT C in
VIDEO CHROMA Vcc
VIDEO CHROMA Vcc
TV/Y IN
33 ACL/ABCL
34 X’TAL
VREG Vcc
fsc OUT 1
Hi Vcc
NC
NC
QIF OUT
AUDIO OUT
AUDIO BYPASS
EXT AUDIO IN
FM DIRECT OUT
VIF VCO F/B
VIF GND
VIF GND
VIF VIDEO OUT
RF AGC OUT
VIF APC FILTER
VIF IN (1)
IF AGC FILTER1
IF AGC FILTER2
64 VIF IN (2)
1 V RAMP CAP
2 AFT OUT
16 B OUT
17 H VCO F/B
NC
AUDIO ATT FILTER
32 AT5.7V REG OUT
47 8.7V REG OUT
48 LIMITER IN
49 P.Con5.7V REG

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