Question about Televison & Video
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Posted on Jan 02, 2017
One thing is to make sure the inverter board is unplugged when testing the voltages. A shorted inverter will shut down the power supply if the fuse dosen't blow first. There are fuses that don't look like fuses so they can be missed. The next thing would be to look for a connector from the main to power supply and see if there is a pin labeled power on or p.on or similar. The main board should turn this line high(5V) when you push the power button. If not you probably have a bad main board. Unless you can find good used boards they are both expensive. Around $200 for PS and $300 for main.
Posted on Jul 06, 2008
I had the same problem and solved it with a factory reset. hold menu button dowm for 10 seconds and it will alow you to reset all the colors.
Posted on Jan 01, 2009
SOURCE: monitor fuse keeps blowing
There is definately a shorted component that causes the fuse to blow. Nomaly the ceremic capacitors are the cause of the problem. Check to see if there is visiual dark or burnt ceremic caps with label sameting like this "SCK 083" near the fuse area and change it. Hope it helps,cheers.
Posted on Jan 22, 2009
This is most likely caused by the Main Power pcb.
See Fujitsu Service Bulletin on this problem in a similar model from Fujitsu. -see link below
A competent service technician should be able to implement the service bulletin.
A similar service bulletin is probably available for your model. Request bulletin from Fujitsu 'email@example.com'
Posted on Jun 05, 2009
The capacitors in question are as follows. 2074 is a 2200uf 35v 105degree celsius. 2081 is a 1200uf 35v 105 degree celsius. I would recommend the smallest solder you can find, and use a 35 w solder pencil.
Posted on Sep 30, 2009
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May 09, 2014 | Samsung CW29M64NS 29" TV
Nov 26, 2013 | Televison & Video
Workup for repair
Diagnosis for Magnavox 32MD251D/37
• Will not power on
• Once on, if turned off power might not return
• Does not respond to power cycling
• Overloaded fuse
• Damaged/fried power board
• Damaged/fried inverter board
• Damage to wiring or related
• Overloaded capacitors on power board - I identified this based on a visual inspection and a multi meter test
• Capacitor 2079 appears overloaded - 1200uf 35v
• Capacitor 2080 appears overloaded - 1200uf 35v
• The capacitors referenced regulate the voltage controlling the power. These caps have a limited lifetime in hours which is usually around 3000. The device was left on for an extended period of time overloading these essential components.
1. I will order a set of replacement capacitors
2. Discharge board prior to work
3. Remove and replace damaged capacitors
Required Parts (total cost $30):
• (2) Vented axial 1200uF 35v Capacitors - $8
• Variable wattage soldering iron (minimum 35w) - $22
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