You recently posted a response to my RCA issue. Thank you for that. Any idea what this problem that you have identified (bad electrolytics vert circuit) runs to fix? The TV is quite large to lug around and if this is an expensive fix, I'd rather just recycle it rather than dragging it to the repair shop and back. Thanks in advance!
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Diagonal retrace lines at the top are usually the result of bad electrolytic capacitors in the vertical deflection circuit most vert. deflection circuits derive operating B+ from a horizontal flyback transformer winding rectified & filtered usually around 24 volts the electrolytic capacitor on this supply loses capacity or may totally go open causing the retrace lines,sometimes other electro. caps in the vert circuit can cause this too, depending on the age of the tv you may find multiple substandard electrolytic caps it's best to test all for capacity & esr. Without knowing more details about your tv brand,model and/or chassis i can't help further.
You have vertical output problems.There is distortion at the top because of a faulty vert. output i.c. or a faulty electrolytic capacitor.It's possible there may be a problem at your yoke also.It needs a professional repair.
ok this might help rca labels their circuits this way..
1000 the tv processor
1100 remote receiver
1200 audio IF
1400 a/v hifi outputs
1500 s-video inputs
1700 stereo audio demodulator
1900 audio output
2300 video IF
2400 sync separator
2700 luminance processor
2900 rgb bias and drive
3100 system control
3300 analog interface
3400 front panel assembly
3600 tuner control
4000 ac input
4100 b+ regulator
4300 horizontal osc.
4400 horizontal output
4500 vert deflection
4600 standby regulator
4700 secondary power supplies
4800 pincushion correction
4900 x-ray protection
5000 kine driver
7500 fm radio
The power supply is telling you that it has a short. I think you have a bad high voltage transformer in the horizontal deflection circuit.
I've repaired several RCA's with this very same problem.
The newer RCA's are vert prone to high voltage transformer failure !
Defective components in vertical deflection and output circuit inclusive of vertical output device, coupling capacitors, and yoke connectors. Passive devices such as electrolytic capacitors, coils, and resistors to/from power supply circuits. If your tele is more than 10 years old dump it and get a newer product. $100 USD is a fair price to diagnose and attempt service, depending on age and configuration. Older products may not have replacment
parts available at any repair cost.
There may be a pot for adjusting the vertical size. If so, it may be dirty. If you can find it, try adjusting it which could clean it. BE CAREFUL -voltages are very high.