Magnavox TV- horz line only
Magnavox RK5541-CH05 27" TV circa 1991
Early Symptoms: For 3-4 weeks upon daily initial turn-on, top of picture has "fold-over", as in the top 3 inches are blank and the next 3 inches have a double scan image. This goes away in 5-10 minutes. Final symptom: Single (or compressed group) of horizontal line across center of screen. Sound present. Competent electronic tech (who rarely opens a tv, mostly microwave and sat communications equipment) wishes advice on where to look for trouble and keep wife happy. Also.... Sams only lists RK5541-CH01 (no CH05 model) Any idea on how similar they are? TIA, Tom -- All outgoing mail scanned with Norton AntiVirus 2003 |
Magnavox TV- horz line only
The failure that went away in the first five minutes is now a more expensive
problem. If it had been repaired right away, probably just a couple of electrolytic capacitors in the vertical circuit. Now the vertical output is shorted, plus the capacitors and likely a burnt b+ resistor to the vertical circuit. Any competant technician with minimal tv knowledge should have no problems with the vertical output circuit on a tv set as those are the most basic type of failures in a tv set. Just follow the vertical yoke wires back to find the vertical output ic and look up a datasheet for it to get an idea what components go where. David Tom wrote in message ... Magnavox RK5541-CH05 27" TV circa 1991 Early Symptoms: For 3-4 weeks upon daily initial turn-on, top of picture has "fold-over", as in the top 3 inches are blank and the next 3 inches have a double scan image. This goes away in 5-10 minutes. Final symptom: Single (or compressed group) of horizontal line across center of screen. Sound present. Competent electronic tech (who rarely opens a tv, mostly microwave and sat communications equipment) wishes advice on where to look for trouble and keep wife happy. Also.... Sams only lists RK5541-CH01 (no CH05 model) Any idea on how similar they are? TIA, Tom -- All outgoing mail scanned with Norton AntiVirus 2003 |
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