DOWNLOAD Sharp DX-AT50H (serv.man13) Service Manual ↓ Size: 2.25 MB | Pages: 18 in PDF or view online for FREE

Model
DX-AT50H (serv.man13)
Pages
18
Size
2.25 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / Schematic diagram, wiring of the P W board
File
dx-at50h-sm13.pdf
Date
PREV: Sharp DX-AT50H (serv.man12) Service Manual

Sharp DX-AT50H (serv.man13) Service Manual ▷ View online

DX-AT50H
– 48 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
Figure 48 WIRING SIDE OF P.W.BOARD (1/6)
WF1
PIN 6 OF
IC1402
WF2
PIN 4 OF
IC1402
WF3
PIN 2 OF
IC1402
WF4
PIN 7 OF
IC801
WF5
PIN 8 OF
IC801
DVD MAIN PWB (TOP VIEW)
– 49 –
DX-AT50H
Figure 49 WIRING SIDE OF P.W.BOARD (2/6)
7
8
9
10
11
12
WF6
Q1351
Base
DVD MAIN PWB (BOTTOM VIEW)
DX-AT50H
– 50 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
Figure 50 WIRING SIDE OF P.W.BOARD (3/6)
CAUTION !
Switching power supply circuit is used in this unit.
If Main Fuse (F1001) is blown, check to see that all components in the
power supply circuit are not defective before you connect the AC plug to the
AC power supply. Otherwise it may cause some components in the power
supply circuit to fail.
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER
SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT
SLOWLY, WHEN TROUBLESHOOTING THIS TYPE  POWER  SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
POWER SUPPLY CBA
Ref No.
Position
Ref No.
Position
IC1001
D-1
Q1007
E-2
IC1002
E-2
Q1008
C-1
IC1003
F-2
Q1010
E-4
IC1006
D-1
Q1011
E-1
Q1012
F-1
Q1001
C-2
Q1014
F-1
Q1002
F-2
Q1003
C-2
CN1001
E-2
Q1004
F-1
CN1002
F-2
Q1005
F-1
CN1003
B-3
Q1006
F-2
ICS
TRANSISTORS
CONNECTORS
TRANSISTORS
POWER PWB (TOP VIEW)
– 51 –
DX-AT50H
Figure 51 WIRING SIDE OF P.W.BOARD (4/6)
7
8
9
10
11
12
POWER PWB (BOTTOM VIEW)
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