20 Most Recent
Quasar VHQ840 VHS VCR Questions & Answers
I need remote control code
Order a replacement owners manual for the unit or whatever unit you are
trying to make work with this one from one of the many service manual
sources such as the ones displayed on this site.
1977 CRT TV wont turn on
Not sure why anyone would want to repair a non hd TV as the picture quality isn't usable with modern content but if you're doing it because you like restoring something vintage here are some ideas. Some CRT sets use a pulse from the back side of the flyback transformer as a starter voltage supply, it needs this short pulse to start the power supply, it's kind of like starting a gas motor, the starter only runs for a short time then the gas motor takes over, this signal needs to be measured with a scope or a high end meter, this was a common issue with a lot of older CRT sets that use this type of power supply. I'd look at the start up supply as without that the regular supply isn't operatable.
I have a Quasar 50in model number sq5000
Your EEPROM is bad, if you can find one and have soldering skills and the equipment to remove and replace SMD devices that's the cheap way to fix( $15) if not replace the main board, in your case with the sound issue it may make more sense to replace the main as that should correct that isue as well
My quasar tv keeps blacking out and I can't get back on it
Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
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