Read Panasonic TH-42LF20W / TH-47LF20W Service Manual online
21
TH-42LF20W / TH-47LF20W
8.13. Connector board removal
1. Peel off the tape halfway that affixes the FFC cable and
lead wire for the connector board to the rear side of the
LCD panel, and remove them from the rear side of the
panel. (Refer to the wiring connection diagram)
LCD panel, and remove them from the rear side of the
panel. (Refer to the wiring connection diagram)
2. Remove the FFC cable (K38I) and the coupler (K38H)
from the connector board.
3. Remove the screw (Qty. 1), and remove the connector
board from the rear side of the LCD panel, and then
replace. (SCR PAN+SW 4X6)
replace. (SCR PAN+SW 4X6)
8.14. LCD panel replacement
Precautions when replacing the LCD panel
• The 2 lead wires for the inverter (Couplers KIV1 and KIV2),
the black-out tape and the spacer sheet, etc., are supplied
already affixed to the LCD panel.
already affixed to the LCD panel.
• The tape that is affixed to the FFC cable and the lead wires
on the connector board are supplied as repair parts. Replace
them at the same time as the LCD panel.
them at the same time as the LCD panel.
1. Follow the procedure mentioned previously, and remove
the connector board, the FFC cable and the lead wire
from rear side of the LCD panel.
from rear side of the LCD panel.
2. Peel off the 2 pieces of aluminum foil tape that are affixed
to and cross over the rear side of the LCD panel and the
upper part of the mounting that connects the cabinet front
and LCD panel.
upper part of the mounting that connects the cabinet front
and LCD panel.
3. While widening the mounting that connects the cabinet
front and the LCD panel, remove the cabinet front from
the LCD panel. When lifting up the LCD panel, hold the
mounting component.
the LCD panel. When lifting up the LCD panel, hold the
mounting component.
4. Remove the screws (Qty. 8), and then remove the mount-
ing from the rear side of the LCD panel. (SCR BIN 4X6)
5. (47V type only) Remove the screws (Qty. 2) and then
remove the Power board holder fittings from the rear side
panel. (SCR BIN 4X4)
panel. (SCR BIN 4X4)
• The Power board holder fittings are not available in the
repair parts.
6. Replace the LCD panel with the replacement LCD panel.
7. Use 2 pieces of replacement aluminum foil tape and
7. Use 2 pieces of replacement aluminum foil tape and
cover the screw hole on the upper part of the mounting so
it is affixed to and crosses over the mounting top and the
rear side of the LCD panel.
it is affixed to and crosses over the mounting top and the
rear side of the LCD panel.
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