Entertainment Center: TVs, Stereos, VCRs and DVDs - Magnavox combo doesn't come on
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11-05-01, 06:09 AM
Upon returning to the house, found all electric clocks blinking. Was told by neighbors that there had been a power outage.
13 inch Magnavox combo (tv/vcr) model CCT132/CWT133 didn't come on (not by power button on face and not via the remote). Took it to a repair shop ($20 diagnosis fee).
They reported that the power supply needs to be replaced. That will be an additional $70.
Recommendations? I don't really have much electrical circuits experience (circuits class in college and minor tinkering with Radio Shack kits). Is power supply replacement something I can/should tackle? Can I save anything by doing it myself?
Also, I searched on-line but haven't yet found a source for a replacement power supply.
13 inch Magnavox combo (tv/vcr) model CCT132/CWT133 didn't come on (not by power button on face and not via the remote). Took it to a repair shop ($20 diagnosis fee).
They reported that the power supply needs to be replaced. That will be an additional $70.
Recommendations? I don't really have much electrical circuits experience (circuits class in college and minor tinkering with Radio Shack kits). Is power supply replacement something I can/should tackle? Can I save anything by doing it myself?
Also, I searched on-line but haven't yet found a source for a replacement power supply.
Smokey
11-05-01, 02:08 PM
Good evening, LGwalk:
I have to concur with the findings of the techicians on your problem. Perhaps a little background is in order:
Years ago, you could turn off a switch on a unit and depend that it was disconnected from everything in the world, including the AC power coming from the plug in the wall.
Some bright star in the industry convinced the mogels that the switch should be moved to the output of the power supply and leave the power supply running all the time. It actually saved 50/10,000 of a second while bringing the unit to full operational status.
So, now you have units with the low voltage power supply fully connected to the AC line at all times, the fuse is in the output of the low voltage supply, and you have failures.
The supply is a sitting duck for lightning misses, power surges, power outages, etc. No protection! If you are smart enough to put a surge protector on the input of your electronic devices, you may have saved it.
My advice is to let the guys at the shop replace the supply at the price they proposed. If you are adept at these things, a good place to check for replacement parts is Union Electonics at http://www.unionel.com
Best money spent is for surge protectors on the AC line for all your electronics.
Smokey is upset with today's manufacturers.
Smokey ;)
I have to concur with the findings of the techicians on your problem. Perhaps a little background is in order:
Years ago, you could turn off a switch on a unit and depend that it was disconnected from everything in the world, including the AC power coming from the plug in the wall.
Some bright star in the industry convinced the mogels that the switch should be moved to the output of the power supply and leave the power supply running all the time. It actually saved 50/10,000 of a second while bringing the unit to full operational status.
So, now you have units with the low voltage power supply fully connected to the AC line at all times, the fuse is in the output of the low voltage supply, and you have failures.
The supply is a sitting duck for lightning misses, power surges, power outages, etc. No protection! If you are smart enough to put a surge protector on the input of your electronic devices, you may have saved it.
My advice is to let the guys at the shop replace the supply at the price they proposed. If you are adept at these things, a good place to check for replacement parts is Union Electonics at http://www.unionel.com
Best money spent is for surge protectors on the AC line for all your electronics.
Smokey is upset with today's manufacturers.
Smokey ;)