Question about Philips Magnavox 27MS343S 27" TV
I was donated a Magnavox CT270MW8A 27in.TV/DVD/VCR of the mentioned type and model for a potential fix and keep. I would love to keep this set, as I don't have the ability, or time to get a new DTV or even a converter box with the deadline for conversions approaching FAST. The chassis is made by FUNAI, and they have NOTHING available in the way of a TECH service manual. However, I have had several computers, and limited experience with repairs of electronic, mainly amateur and at-home jobs, with a 100% success rate. Based on the symptoms (i.e. put in 3 new fuses as specified in the board, plug set in and it blows the fuse IMMEDIATELY, without even turning the set on. There were flashes on/at the poles of the plug itself and the fuse inside each time I plugged it in. I suspect the problem is in the power supply section of this unit (either at the transformer [it uses a flyback-type of t-former] the power relay, or the thermistor [whatever that is, please explain] ). I called an on-line store, the only one listing any parts for this unit, and these are the only one available, anywhere that closely might ZERO IN ON THE CULPRIT. Based upon this, or the process of deduction, I am willing to replace these parts, any or all of them myself, if they are 'plug and play' , AS IN A COMPUTER INTERNALS SWAP OUT. It appears to have a 'motherboard' as does a computer, so I see similarities in design and symptoms. My question IS: are these components merely R&Rm (unplug old and replug new), or do they require extensive soldering and therefore extensive testing???. HOW do I ID them on the board??? Do you or can you get a
SERVICE Manual??? If I replace them all, following all safety precautions and protocols OF COURSE, and the problem is still not solved. I will still take it in for service. I have solved these symptoms on two computers, but NEVER a TV set, particularly not a TV/DVD/VCR combo. I realize there are several basic tests for continuity using a MULTIMETER as a preliminary at certain junctures on the board, and power cord and GNDS. Can/would you help me please with options, alternatives, and no-way-outs? I am disabled on a fixed income and had a hard time getting it into my apartment with a bad spine/back and no help, but made it this far The.set is brand-spanking new (2007) with no visible use at all, and probably had a power surge knock out or short the board somewhere is all, and should not be junked. At $100(+) just to get it in the door of the nearest shop, not to mention logistics, your help would be priceless to me right about now Again, PLEASE&THANKS. RG
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Posted on Jan 02, 2017
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