Question about Zenith B25A02Z TV
When I turn the power on I can hear little clicks which indicate its on but nothing happens
I see that your TV's high voltage flyback is leaking out.
or the flyback cap to the CRT aka picturetube is dirty, or it has a open insulation.
(Warning: Flybacks are extremely dangerous, it has a high voltage that kills. becareful.)
Posted on Jan 16, 2009
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Posted on Jan 02, 2017
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May 19, 2009 | RCA HD52W58 52" TV
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Jan 16, 2009 | Zenith B25A02Z TV
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Feb 04, 2008 | RCA D32F750T TV
This denotes a problem with the switching power supply or the high voltage power supply. what is happening is the safety relay is being actuated by the shutdown circuit. Any number of things can cause this proble but more then likely the problem is in the high voltage power supply section and or its associative circuitry. The switching power supply and the high voltages power supply have very dangerous voltages and I would not suggest that you work on the TV set unless you do have a background in electronics. If you do not I would suggest that you take the TV set to an electronics shop for repairs. If you do have a background in electronics, you will need the following items:
1) A schematic diagram (to know where voltage and signal test points are located and to have a reference of the levels.
2) A multimeter (to measure the DC voltage levels on the TV Set)
3) An oscilloscope (to measuer the AC voltage and signal levels in the TV set and compair them to the values in the schematic)
4) A signal generator (to generate a reference signal for troubleshooting)
I hope this helps,
Oct 11, 2007 | Panasonic CT-32HX41 32" TV
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