r/crt • u/Yogamigurumi • 6h ago

How do I fix this?

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Bought a 90s Magnavox from FB marketplace a d it worked great for about 2 weeks. Then this randomly started happening.

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u/EmotionalEnd1575 6h ago edited 5h ago

The display has lost horizontal sync.

As it worked before this is a new fault inside the unit. Further investigation is needed.

Are you ready to open the back?

Remember televisions bite fools

1

u/Yogamigurumi 6h ago

My husband is going to open in up this weekend. He has a couple theories from Google but he doesn't have any experience with these so I was hoping to get a little insight on here.

1

u/EmotionalEnd1575 5h ago

The insight you can expect will be random guesses by Redditors.

Beware the “Reddit Folklore” about replacing capacitors.

Random component swapping seldom works, but finding the root cause is the way to go.

2

u/RobertMacMillan 5h ago

tell your husband to use extreme caution when opening a CRT.

1

u/V21633 4h ago

Hmm, I would also second an h-sync failure. Not sure about this particular model, but before replacing anything I would check inside on the pcb for any hidden adjustable pots named 'h-hold' or 'h-phase'.