How To Replace The Handset Lcd - Panasonic KX-TG4763B Service Manual

11.3. How to Replace the Handset LCD

Note:
The illustrations are simplified in this page.
They may differ from the actual product.
P. C. board
Peel off the FFC (Flexible Flat Cable) from
the LCD, in the direction of the arrow. Take
care to ensure that the foil on the P.C. board
is not damaged.
Fit the heatseal of a new LCD.
Heatweld with the tip of the soldering
iron about 5 to 8 seconds
(in case of 60W soldering iron).
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New LCD
Tip of Soldering Iron
(Part No. PQZZ430PIR)
Rubber of Soldering Iron
(Part No. PQZZ430PRB)
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Vertical Interval
Tolerance
0.2 mm
0.2 mm
If interval tolerance between center lines
is less than 0.2 mm, it is o.k.
(Inclined)
(Vertical interval tolerance is
more than 0.2 mm.)
(Horizontal interval tolerance is
more than 0.2 mm.)
55
KX-TG4763B/KX-TGA470B/KX-TGA405B
Horizontal Interval
Tolerance
OK
NG
NG
NG