Panasonic TH-42LF80U / TH-42LF80W (serv.man2) Service Manual ▷ View online
DIS-1
<42LF80>
CONTENTS
SECTION 2 DISASSEMBLY PROCEDURES
Disassembly Procedures
Model No. TH-42LF80U
TH-42LF80W
SECTION 2 DISASSEMBLY PROCEDURES
1. Parts Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIS-2
1.1. Electrical parts location (P.C. Modules)
2. Parts Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIS-3
2.1. Disassembly flow chart
2.2. Preparations
2.3. Rear cover MID removal
2.4. A module removal
2.5. P module removal
2.6. Rear covers Left and Right and Bottom removal
2.7. IR module and the speakers removal
2.8. AC inlet removal
2.9. Key module removal
2.10. LCD panel module
2.11. Wiring connections
2.2. Preparations
2.3. Rear cover MID removal
2.4. A module removal
2.5. P module removal
2.6. Rear covers Left and Right and Bottom removal
2.7. IR module and the speakers removal
2.8. AC inlet removal
2.9. Key module removal
2.10. LCD panel module
2.11. Wiring connections
3. Replacement of LCD Panel Module . . . . . . . . . . . . . . . . . . . . . . . . . . DIS-12
3.1. How to handle LCD panel module
• A top-and-bottom inversion is a bad
(2015-05)
DIS-2
SECTION 2 DISASSEMBLY PROCEDURES
<42LF80>
1. Parts Locations
1.1. Electrical parts location (P.C. Modules)
Module
Function
Remark
A Module
Speaker out, AV Terminals, HDMI in, DVI in/out, VGA in,
USB in, PC in, DP in, DIGITAL LINK in, RS232C-in/out,
IR-trough
All modules are non serviceable
and should be exchanged for
repair.
IR Module
Remote receiver, LED
P Module
Power (AC/DC). DC-DC
Key Module
Control button, Power switch
P Module
Key Module
IR Module
A Module
DIS-3
SECTION 2 DISASSEMBLY PROCEDURES
<42LF80>
2. Parts Disassembly
2.1. Disassembly flow chart
* Before Disassembling, turn the display off and disconnect the power plug from the wall outlet.
* To assemble, reverse the disassembly procedures.
* When tore off sticky tapes, please use a new thing without reusing it on the occasion of assembling.
2.9. Key Module removal
2.10. LCD panel module removal
2.11. Wire connections
2.7. IR Module and Speakers removal
2.5. P module removal
2.3. Rear cover MID removal
2.4. A module removal
Completed Product
2.6. Rear cover Left and Right and Bottom removal
2.2. Preparations
2.8. AC inlet removal
DIS-4
SECTION 2 DISASSEMBLY PROCEDURES
<42LF80>
23
TH-50LFC70U/TH-50LFC70W
7.2. Preparations
• When you exchange modules or board, in order to make it
discharge from an electrolytic condenser, please wait for 1
minute after the power supply end.
minute after the power supply end.
• To avoid damaging the LCD panel, lay out a soft cloth or
towel, and turn the front of the unit down, and lay down so
that the entire monitor rides on a table completely.
that the entire monitor rides on a table completely.
Precautions when replacing each component
• When you replace each component, please be sure to carry
out following procedure as below.
• Be careful not to overtighten the screws when replacing
each module.
• Please remove a clamper and a wire processing tape if
needed in the repaire.
• In carrying out Section 7.7. or later, please execute the
Chapter 7.6. and 7.5. in advance.
7.3. Replacement of WI-FI Module
(Dongle)
1. Remove the screw and then remove the WI-FI Module
(Dongle).
2.2. Preparations
• When you exchange modules or board, in order to make it discharge from an electrolytic condenser, please wait for 1 minute
after the power supply end.
• To avoid damaging the LCD panel, lay out a soft cloth or towel, and turn the front of the unit down, and lay down so that the
entire monitor rides on a table completely.
Note:When local pressure is surppressed, Mura of the picture image may be seen. In this case ,please carry out aging by
burn in mode. (Refer to INF.7 in the SECTION 1)
Precautions when replacing each component
• When you replace each component, please be sure to carry out following procedure as below.
• Be careful not to overtighten the screws when replacing each module.
• Please remove a clamper and a wire processing tape if needed in the repair.
Soft cloth and Towel
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