Toshiba MW27F51 Service Manual - Page 63

Tv Block Diagram - ic401

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TV BLOCK DIAGRAM L1703 DEGAUSS COIL AC IN FEED BACK SWITCHING IC1702 KIA431A-AT 1 3 2 1 DEGAUSS RELAY RY1701 3 4 F1701 FEED BACK IC1701 PS2561AL1-1-V(W) 2 3 Q1706 SWITCHING Q1705 SWITCHING D1701, D1705, D1706, D1708, D1710, D1711 D1714, D1725 Q1702 RELAY DRIVER TRANSFORMER SWITCHING T1701 18 17 1 14 4 6 10 7 12 Q406 CURRENT DET VR1701 +B ADJ. CP602B 1 V.OUT 6 H.OUT 7 P.CON+5V 2 TV_POWER_H 3 AFC 4 ACL 5 EW OUT 8 EMERGENCY 9 +B DOWN V.OUTPUT IC IC401 LA78041 7 1 5 2 Q401 H.DRIVE Q407 Q409 H_VOLT_SW H_VOLT_SW T401 5 2 3 Q403 FL OUT Q408 SW Q801, Q810 RED AMP Q802, Q811 GREEN AMP DY FB401 1 F 3 FBT S 2 9 HV 7 J801 11 6 8 F 7 MOTOR+12V +B UNREG+8V UNREG+5V DEGAUSS_H REGULATOR MICON MOTOR+12V CHROMA/IF Q803, Q812 BLUE AMP SOUND +B SOUND AMP CP802 CUT OFF 1 R.OUT 3 G.OUT 4 B.OUT 5 CLAMP OFF 6 VM_OUT 7 VM_OSD_Y 8 V801 CRT E-21 PIN DRIVE Q402, Q404, Q405, Q410 VM COIL Q855~Q859 SWITCHING Q854 BUFFER Q852, Q853, Q863, Q864 AMP E-22

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TRANSFORMER
SWITCHING
T1701
14
12
6
AC IN
L1703
DEGAUSS COIL
DEGAUSS RELAY
RY1701
4
1
2
1
3
FEED BACK
IC1701
PS2561AL1-1-V(W)
VR1701
+B ADJ.
CURRENT
DET
Q406
TV BLOCK DIAGRAM
MOTOR+12V
SOUND +B
Q1702
D1701, D1705, D1706,
D1708, D1710, D1711
D1714, D1725
7
2
3
DEGAUSS_H
Q1706
SWITCHING
HV
F
S
DY
FBT
1
V801
CRT
3
FB401
V.OUTPUT IC
IC401
LA78041
1
5
2
2
Q401
H.DRIVE
2
T401
5
3
Q403
FL OUT
RED AMP
Q801, Q810
GREEN AMP
Q802, Q811
BLUE AMP
Q803, Q812
J801
11
8
6
F
7
MICON
SOUND AMP
REGULATOR
RELAY
DRIVER
F1701
P.CON+5V
V.OUT
CP602B
4
3
2
ACL
AFC
TV_POWER_H
7
6
1
H.OUT
EW OUT
EMERGENCY
+B DOWN
5
8
9
SW
7
9
7
Q407
H_VOLT_SW
+B
G.OUT
CUT OFF
CP802
7
6
5
VM_OUT
CLAMP OFF
B.OUT
4
3
1
R.OUT
VM_OSD_Y
8
FEED BACK
SWITCHING
IC1702
KIA431A-AT
1
3
10
17
18
UNREG+8V
UNREG+5V
Q408
Q409
H_VOLT_SW
Q402, Q404,
Q405, Q410
PIN DRIVE
Q855~Q859
SWITCHING
Q852, Q853,
Q863, Q864
AMP
Q854
BUFFER
VM COIL
E-21
E-22
4
Q1705
SWITCHING
MOTOR+12V
CHROMA/IF