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2246 Display Issues


 

Hi All

Have two issues with my Tek 2246 scope display. Looking for common faults before digging in.

1) Display brightness fades after approx half hour after power on. Display geometry is fine, it just dims

2) Display seems to have a slight flicker . . . it's also noticeable on the green LED's illuminating buttons

Bought it in not working condition. Replaced rectifier in -15VDC supply. All now working well except these two issues.
All other supply voltages look steady, although have not taken time to look at any ripple/abnormalities.

Thanks in advance,
Mike

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