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What is causing a bright monitor with Horizontal Sweep Lines?

It’s a model # M5011 and when turning on the computer gives a normal boot tone and the hard drive is working but the screen is white with white lines. All capacitors on the motherboard were replaced and cleaned. It came with the ROM and all RAM slots filled.

Block Image

Block Image

Update: I have replaced both the Q1(2N3904) ic and U1(74LS38) ic no changes occurred.

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The battery on the logic board was replaced, correct?

yes the battery was replaced before the caps were.

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send me a vid in my g mail here:

htt.lip@gmail.com

i think i can solve the problem

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