Apple PowerBook 140 Specifications download pdf (Page 39)

Troubleshooting Symptom Charts/Video

(Continued)

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Video

(Continued)

Backlight doesn’t

operate

1 Check cables.

2 Check display cable, inverter board, interconnect board,

daughterboard, and motherboard connections.

3 Replace inverter board.

4 Replace inverter display cable.

5 Replace interconnect board.

6 Add shim to display cable. Refer to Additional Procedures.

7 Replace display cable.

8 Replace FSTN display (all repairers) or replace active-

matrix display (CPRC/ international repairers only).

9 Replace daughterboard.

10 Replace motherboard.

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Apple PowerBook 140 Specifications Page 39