TV just went off and you could hear clicking, like it was being turned on and off repeatedly. Pulled plug and waited ten minutes, then plugged back it, only to see a picture line across center of screen, instead of the regular size. You can hear sound now, but the picture is only that thin line in center of TV, as mentioned.
The vertical output transistors could be bad, test them with an ohm meter and see if they are open or shorted, if one of them are shorted it will take out the emitter bias resistor as well. This was a common failure for this model RCA set back in the day.
The means the deflection is not working, there is a coil of wire around the neck of the tube, it is run by a transistor. This transistor has probably gone bad
SOURCE: rca tv mm36100
power botton needs to be replaced just did that to mine and now works fine i would replace all bottons they are 2 dollars each
SOURCE: TV Problem
The first thing is to check to see if the fuse is blown,if so replace with a 5 amp fuse,fuse is located near were the power cord connects to the board,make sure set is disconnected from power.
SOURCE: no picture, but power light is on
THE POWER SUPPLY OF YOUR TV WAS THE PROBLEM,YOU COLD SOLDER THE MAINBOARD OF YOUR TV,AND THE CRT SOCKET CONNECT TO THE TUBE IS ALSO COLDSOLDER,.
SOURCE: RCA 35" no picture, clicking zapping sound
What you are hearing is the discharge of high voltage which if it hasn't already failed, will fail if allowed to repeat too often.
The only thing you might try after unplugging the set for a minimum of 24 hours, is to remove the back shell (shouldn't be more than 8-10 screws around the perimeter and perhaps one or two around the connector cutout) and with a clean paintbrush and a vacuum cleaner with the nozzle held close to the work area, brush the CRT (picture tube) free as possible of accumulated dust, paying particular attention to the area around the large rubber cap with a cable leading to the circuit board.
I can't stress enough that the set must be ignored to allow the 25,000 plus volts that are present on the CRT when operating are given a chance to 'bleed off.'
This voltage doesn't often kill anyone since it is a short-term discharge with the set off but I have seen it punch a hole through a thumb.
If you are lucky, the horizontal circuit is not in its death throes but only discharging through a layer of typical household crud.
Unfortunately, this will not likely help you and you will require a tech to locate the problem.
Good luck finding one that isn't dead or retired yet; we are dwindling.
SOURCE: RCA Model f27650 High pitch squeal
the high pitch squeal indicates shorted component/s. the transformer goes hot co'z its being overloaded by the shorted component, it too could be the one creating the squeal!!
if you have experience with electronic troubleshooting, try to test some of the components particularly on the secondary part of the transformer.
Be careful and make sure the TV set is unplugged.
test for shorted diodes and transistors, if you're in doubt of your readings try to desoldering one leg of the diode then proceed with the testing/measuring. replace any of the bad components you find exactly with same part number or replacements with the same rating.
spend more time on it resoldering some other cold soldered components.
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Thin line is horizontal.
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