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#1
10-31-2024, 12:12 PM
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LCD handheld TV not displaying colour
I bought a 1985 Citizen TC53 earlier this
year and used it with a VCR several times. Yesterday, it was displaying in black and white and the batteries had leaked. I replaced them, cleaned the compartment and tried adjusting brightness and colour. Nothing looks broken inside. I have a multimeter but don't know what to test.
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williamsmobile.co.uk 
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#2
10-31-2024, 02:15 PM
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Corrosion and leakage due to electrolyte is possible. Is worth to wash the board and look for any strange spot in the tracks/parts. The contamination perhaps hit near the chroma circuits/crystal.
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So many projects, so little time...
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#3
11-12-2024, 02:54 PM
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X2 on what Alex KL-1 said. If you haven't opened it up yet, I'd do it now and wash any battery juice with vinegar and then rinse with water.
Also there there are quite a few surface mount electrolytic capacitors that are failing in these little TV's. One of those could be getting weak causing the no color issue.
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Linear Mode
