Read Sharp PN-R903 (serv.man5) Service Manual online
PN-R903/R703/R603
DISASSEMBLY AND ASSEMBLY
6 – 1
CHAPTER 6. DISASSEMBLY AND ASSEMBLY
CAUTION
・
Do not touch the PWBs which employ lead-free solder with bare hands. Always use gloves.
・
Use the earth band when performing the procedures.
・
When servicing the Display such as replacing a PWB, make sure to service with the Display laid and with a protective sheet spread over
the LCD panel.
・
While working with the Display laid, or when moving the Display after the work, applying stress to the bezel may cause it to get deformed.
Be sure to handle it with great care.
1. PWB AND WIRING DIAGRAM
■ PN-R903
C
B
F
A
C
C
C
I
H
H
G
D
E
1
2
3
4
4
5
6
7
8
9
10
No.
Parts name
A
Key PWB
B
I/F PWB
C
Interface PWB
D
System Power Unit
E
C-PWB unit
F
LED TCON unit
G
AC relay PWB
H
LED Power Supply unit
I
LED DRIVE PWB
No.
Cable name
1
Main cable
2
AC cable
3
Power supply cable
4
LED FFC M
5
LED FFC L
6
LED FFC S
7
LVDS FFC
8
IF signal cable
9
KEY FFC
10
MSW cable
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