DOWNLOAD Panasonic TX-PR42GT20 Service Manual ↓ Size: 17.92 MB | Pages: 127 in PDF or view online for FREE

25

1. Remove the One leg bracket. (See section 8.12.)
2. Remove the Cabinet mount metals fastening screws (

×7

, 

×14 

) and remove the cabinet mount metal top

and the Cabinet mount metal bottom.

1. Remove the AC inlet. (See section 8.1.)
2. Disconnect the flexible cables (D5, D20, D31 and D32).
3. Disconnect the connector (D25).
4. Remove the screws (

×4 

) and remove the D-Board.

1. Remove the Hanger metal R and the One leg bracket.

(See section 8.12.)

2. Remove the Cabinet mount metal bottom (See section

8.13.).

3. Remove the flexible cable holder fastening screws (

×12

).

4. Disconnect the flexible cables (CB1, CB2, CB3, CB4,

CB5, CB6, CB7 and CB8).

5. Disconnect the flexible cables (C10 and C11).
6. Remove the screws (

×4 

) and remove the C1-Board.

1. Remove the Tuner unit. (See section 8.5.)
2. Remove the Hanger metal L and the One leg bracket.

(See section 8.12.)

3. Remove the Cabinet mount metal bottom. (See section

8.13.)

4. Remove the flexible cable holder fastening screws (

×10

).

5. Disconnect the flexible cables (CB9, CB10, CB11, CB12,

CB13, CB14 and CB15).

6. Disconnect the flexible cables (C20 and C21).
7. Disconnect the connectors (C23 and C25).
8. Remove the screws (

×4 

) and remove the C2-Board.

26

1. Remove the cabinet mount metals fastening screws (

×7

).

2. Remove the plasma panel fastening screws (

×3 , 

×8

) and remove the cabinet assy.

3. For leaving the cabinet assy from the plasma panel, pull

the bottom of the cabinet assy forward, lift, and remove.

1. Remove the Cabinet assy. (See section 8.17.)
2. Remove the screws (

×4 ).

3. Remove the Contact metal top.
4. Remove the screws (

×3 ).

5. Remove the Contact metal bottom.
6. Remove the screws (

×4 ).

7. Remove the Contact metal side (L, R).

1. Remove the Contact metal bottom. (See section 8.18.)
2. Remove the screw (

×1 ).

3. Remove the claw (

×1 ).

4. Disconnect the connector (K1) and Remove the K-Board

from LED Panel.

27

1. Remove the Contact metal bottom. (See section 8.18.)
2. Remove the screw (

×1  

each).

3. Disconnect the connector (V1 each) and Remove the V-

Board from the Emitter fixing metal.

1. Place a carton box packed a new plasma panel on the flat

surface of the work bench.

2. Open a box and without taking a new plasma panel;

Attach the C1-Board and the C2-Board, connect the flexi-
ble cables from the plasma panel to the C1-Board and the
C2-Board, and fit the flexible cable holders.

3. Attach the Hanger metals and the One leg bracket to the

new plasma panel.

4. Place the plasma panel on the servicing stand taking hold

of the Hanger metals.

5. Attach the cabinet assy and each P.C.Board and so on, to

the new plasma panel.

28

When Plasma panel or A-board is replaced, Vsus should be set to LOW or HIGH.

1. Go into main item [VSUS] in Service Mode. LOW or HIGH will be displayed.
2. Press [OK] button to go to TEST stage. 

White pattern without On-Screen Display will be displayed during TEST and CONF stage. Press [5] button to display the 
On-Screen Display.

3. Press [VOL (-)] button to set to LOW.
4. In LOW setting

a. If no several dead pixel is visible remarkably in white pattern, press [3] button to go to CONF stage.
b. If the several dead pixels are visible remarkably in white pattern, Set to HIGH by press [VOL (+)] button. Press [3] button

to go to CONF stage if the symptom is improved. 

5. Press [OK] button in CONF stage to store LOW or HIGH.
6. Exit Service Mode by pressing [Power] button.