Dell D1626HT brightness control inverted

S

Shannon Winchester

Guest
Would someone please help me to diagnose my Dell D1626HT 21" monitor..

I am having problems with the brightness control. Increasing the
brightness on the front panel actually makes the screen darker while
decreasing the brightness on the front panel makes the screen lighter.

I have previously replaced IC IC403 (FA4111) to correct a missing
color which fixed that issue. The only remaining problem is the
inverted brightness control.
I have turned up the RGB color bias and gain through the OSD to make
the monitor usable. (If I leave these as default I get a VERY screen)

Would someone please offer some feedback on what may be causing this
brightness issue. BTW I do have the service manual.

Thanks in advance

swinches@rohan.sdsu.edu
 

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