Picture Problems - Philips 20PT643F Service Manual

How to exit
Switch the set to STANDBY by pressing the POWER button on the remote
control transmitter or the television set.
If you turn the television set off by removing the AC power (i.e., unplugging the
television) without using the POWER button, the television set will remain in SDM
when AC power is reapplied, and the error buffer is not cleared.
Problems and Solving Tips Related to CSM

Picture Problems

Note : The problems described below are all related to the TV settings. The
procedures used to change the value (or status) of the different settings are
described.
Picture too dark or too bright
If:
The picture improves when you have press the AUTO PICTURE button on
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the remote control transmitter, or
The picture improves when you enter the Customer Service Mode
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Then:
3. Press the AUTO PICTURE button on the remote control transmitter
repeatedly (if necessary) to choose PERSONAL picture mode.