Sharp PN-Y475 Service Manual ▷ View online
PN-Y325/PN/Y425/Y475/Y555 DISASSEMBLY AND ASSEMBLY (PN-Y425/Y475/Y555) 7 - 1
CHAPTER 7.
DISASSEMBLY AND ASSEMBLY (PN-Y425/Y475Y555)
n
Do not touch the PWBs which employ lead-free solder with bare hands. Always use gloves.
n
Use the earth band when performing the procedures.
n
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.
n
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.
*If the work procedure is the same, may differ from the real thing to describe together illustration of three models. (Use PN-U553 mainly)
1.
PWB AND WIRING DIAGRAM
1-1. PWB and Wiring diagram
[PN-Y425]
1
2
b
d
A
7
9
B
8
a
3
5
e
6
11
12
10
4
c
No．
Parts name
No．
Cable name
a
Main PWB
1
LED driver cable
b
LED driver PWB
2
LED backlight cable
c
T-CON PWB
3
Power cable
ｄ
Power PWB
4
AC SW cable
e
Speed relay PWB
5
LVDS cable 1
A Speaker
R
6 Ground
cable
B Speaker
L
7 Speaker
cable
8 LED/KEY
cable
9 FFC
cable
10
LVDS cable 2
11
LVDS cable 3
12
LCD Driver - T-CON cable
PN-Y325/PN/Y425/Y475/Y555 DISASSEMBLY AND ASSEMBLY (PN-Y425/Y475/Y555) 7 - 2
[PN-Y475]
1
b
2
6
d
A
7
4
c
9
11
10
12
e
3
5
a
8
B
No．
Parts name
No．
Cable name
a
Main PWB
1
LED driver cable
b
LED driver PWB
2
LED backlight cable
c
T-CON PWB
3
Power cable
ｄ
Power PWB
4
AC SW cable
e
Speed relay PWB
5
LVDS cable 1
A Speaker
R
6 Ground
cable
B Speaker
L
7 Speaker
cable
8 LED/KEY
cable
9 FFC
cable
10
LVDS cable 2
11
LVDS cable 3
12
LCD Driver - T-CON cable
PN-Y325/PN/Y425/Y475/Y555 DISASSEMBLY AND ASSEMBLY (PN-Y425/Y475/Y555) 7 - 3
[PN-Y555]
A
B
7
8
b
2
d
a
4
10
11
5
6
c
3
9
1
e
No．
Parts name
No．
Cable name
a
Main PWB
1
LED driver cable
b
LED driver PWB
2
LED backlight cable
c
T-CON PWB
3
Power cable
ｄ
Power PWB
4
AC SW cable
e
Speed relay PWB
5
LVDS cable 1
A Speaker
R
6 Ground
cable
B Speaker
L
7 Speaker
cable
8 LED/KEY
cable
9 FFC
cable
10
LVDS cable 2
11
LVDS cable 3
PN-Y325/PN/Y425/Y475/Y555 DISASSEMBLY AND ASSEMBLY (PN-Y425/Y475/Y555) 7 - 4
1-2. Cramp position
There are two kinds of the clamps.
Put the clamps by referring the following figure and table.
When the LCD module is replaced or the clamps are broken, the clamps need to be replaced.
No.
Photo
Color
Note
1
White(Transparency)
Double side tape
2
Black
Double side tape
[PN-Y425]
2
2
2
2
1
1
1
1
1
1
1
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