Question about Televison & Video
Can someone tell me what is the problem and how to fix it
Power supply 17ips10-3 v.1,mainboard 17mb45m-2
the power supply has intergrated inverter bit of a pain,no markings for voltages etc,also used in bush,sylvania etc,it has a touch panel on the side for the usual adjustments ,.
these NORMALLY suffer with the inverter output ceramic caps (3kv),on c231 &c230,an insulation test confirmed they were fine,and capacitance was within tolerance,all other lytic caps tested for esr returned good results.
it had all stable voltages ,but no voltage in inverter section??although a fluctuation on the standby voltage was due to the led's flashing in time with the flucuation.
it was hit and miss knowing what voltage goes where,it is a vestal afterall!things seemed fine as a guestamite.
to do component testing in the area of the inverter, from the smpt there are 2 ultra fast recovery diodes in parallel .
checks on these diodes and look for a shorted diode, (d105) a uf5402...
Posted on Mar 28, 2014
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Posted on Jan 02, 2017
First thing you do is to check the outlet if there is a power output the check the power cord and plug.If there 's a power in the power cord,Check the fuse of your television.The fuse is located at the power supply.You can see the power supply when you open the back cover of your television at the upper right side.Replace the fuse if busted with the same value of fuse.That's the step you can do first..Thanks..
Posted on Aug 25, 2011
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