JVC TV-20F242 Service Manual page 68

Table of Contents

Advertisement

[MAIN PCB DEFLECTION CIRCUIT DIAGRAM]
A
B
C
8
1
FROM/TO CHROMA/IF
7
CP820_1
(CD601)
8283_1312_00_000
1
SOUND+B
2
SOUND GND
3
H.OUT
4
GND
5
V.FEEDBACK
6
V.OUT
7
ACL
R412_1
8
H.PULSE
470 1/4W
9
TV POWER H
10
POWER FAIL
11
X-RAY TEST
W819
6
12
VCR POWER H
13
DEGAUSS H
5
FROM/TO TV POWER
4
TV.POWER_H
VCR.POWER_H
SOUND+B
SOUND_GND
DEGAUSS_H
POWER_FAIL
P.CON+111V
GND
PROTECT
W811
+B
PROTECTOR
3
PROTECTOR
0
Q410
DTC114TS
0.2
7.5
PROTECT DRIVE
2SA1624
110.5
R410_1
5.6K 1/4W
2
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
C
DEFLECTION SCHEMATIC DIAGRAM
V.OUTPUT
IC401
LA78040
THERMAL PROTECTION
-
AMP
+
PUMP UP
Vcc
GND
2
3
4
5
6
7
3.9
25.5
1.3
0
12.9
24.8
3.9
C412
500V
22P
SL
R413
R416
27K +-1%
4.7K +-1%
3
HS401
763WAA0089
R449
T401
5013001
2.7K 7W
2
C416
31.0
0
W816
500V
22P
SL
NC
4
0.2
31.0
0.5
22.3
1.3
H-DRIVE
0
HS402
Q405
763WAA0125
2SC2621
0
0
SWITHING
18.5
0
Q403
Q402_1
0.2
DTC114TS
DTC114TS
W852
4.5
220K 1/4W
SWITHING
18.5
Q404
2SA1015Y
15.1
18.5
TP403
Q401
R469
R442
R401_1
D409
0.4
22K 1/4W
HZ11B3L
6.8K
4.7K 1/4W
0.047 TF
+-1%
+-1%
110.0
TP404
W814
NOTE:
THE RESISTOR MARKED F IS FUSE RESISTOR.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.
No.51768
TV-20F242
TV-20F242
D
E
(MAIN PCB)
8
L402
ELH5L4113
R448
1K 1W
C450
2KV
0.001
BP
C431
250V
10
YK
247.6
1.3
H.OUTPUT
0
Q406
2SD2499(LBOEC1)
D407
FMV-3FULF027-102
C429_1
2KV
470P
D411
R436
RMPG06J
12 1/2W
NC
R435
R451
820 1/2W
PIN DRIVE
Q408
R437
L481
8.7
7.8
2SA1015Y
1 1W
D8000012
3.8
800uH
8.1
8.2
PIN DRIVE
PIN SW
3.2
SIDE PCC
0.6
Q409
Q407
VR402
0.6
2SD1667
2SC1815Y
22K
0
C419
D412
RMPG06J
CAUTION:
SINCE THESE PARTS MARKED BY
ATTENTION:
LES PIECES REPAREES PAR UN
ETANT
CRITICAL FOR SAFETY,USE ONES
DANGEREUSES AN POINT DE VUE SECURITE
DESCRIBED IN PARTS LIST ONLY
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D
E
2-29
2-30
F
G
TO DY
CP401
B05B-DVS
5
4
3
NC
2
1
V801
A51LSH196X01(O)
9
10
R
8
G
6
B
11
5
7
1
FB401
3221011Q
3
2
1
CD802_1
272.0
COL
CP83035A
HV
10
113.8
+180
5
110.4
+B
9
FOCUS
25.3
EF
AFC
2
HEA
6.5
TER
1
SCREEN
G2
22.1
NC
6
NC
0
GND
3
0
GND
11
30.9
+14
B
NC
7
7.1
63.2
ABL
R452_1
4
+12
8
2.2 1W
CP803A
51052-0500
R450_2
180V
180V
5
NC
0.68 1W
NC
4
GND
GND
3
GND
GND
2
HEATER
HEATER
1
CD803
2E054402
R423
10K 1/4W
R453
R461
PCB070
C439_1
68K 1/4W
5.6K 1/4W
TMX465
500V
220P
B
ARE
CAUTION: DIGITAL TRANSISTOR
F
G
No.51768
H
8
7
6
5
TO CRT
4
TO CRT
3
TO CRT
2
DEFLECTION SIGNAL
1
H

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents