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POWER P.C.B. MAIN P.C.B.
Q1601
(REG.X SW+5.8V)
1 A
T1150 S D
4 FET 2
POWER G
SWITCHING
IC1601 5 X SW+5V P7503 PP7701
VA1110,L1120,L1121 D1140,C1143 TRANSFORMAR D1270 TO FRONT (R) P.C.B.
(DC/DC CONVERTER) 2
1 D7502
6
AC INL
ET 2
P1101
F1101 SURGE 3 9 VIN CS 10 3 X SW+5.8V P7402 P59001
SUPPRESSOR RECTIFIER TO DIGITAL P.C.B.
P1 32, 34
AND 1 12
SURGE EXT 11
ABSORBER UP IC1506
(REG. DR+5V)
11 8 FB GND 16 2 VIN VOUT 4 B
ON: H
1
PT
2 10 DI P ON H P7402 P59001 FROM DIGITAL P.C.B.
ANALOG TIMER
5 BLOCK SECTION
IC1150
(SWITCHING IC)
P1102 P1501
C
5, 6, 7, 8
VH 8
P2
D 3
G
2 F/B OUT 5 Q1150
S T7501
IS 3 9 DISPLAY HEATER
ZCD GND VCC POWER SWICHING
IP7501 Q7502, QR7501 TRANSFORMER
1 4 6
B1 POWER
5 1 2 SUPPLY 1 7 UNREG +38V TO U/V TUNER
D1151
8 CONTROL D7506
Q1509
B2 (DR+12V OUT)
6 7
S D
4 FET 1 DR+12V D
G
2
Q1200 5
(FEED BACK)
6 DR P ON H P7402 P59001 FROM DIGITAL P.C.B.
ANALOG TIMER
4 1 2 BLOCK SECTION
3
3 2
QR1501
( H :ON)
4
3 2
IC1201
(ERROR VOLTAGE DET.)
HOT COLD
DMR-EH76EC,EX86EB/EC,EX96CEG
Main P.C.B. Power Supply Block Diagram (1/2)