LCD Television mainboard Troubleshooting guide

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21" CRT Television MODEL GLD no power symptoms now repaired

After opening the set I went straight to check on the safety components:

I found the surge limiter Resistor (dropper) open circuit but the fuse ok.

I replaced the dropper and powered on but it blow again instantly, I wish I had used the series bulb but it was too late.

I replaced the dropper again and used the series bulb and I notice d the bulb was lighting with lots of brightness indicating a heavy short. I measured the voltage across the man capacitor and found around 65 volts.

WM202D Dual Channel UHF Receiver

A member of Praise team in the place of worship I attend brought this gadget to me and told me that it is not working (Dead)

Yashika CRT television screen with colored bars repaired

I received a complaint from one of my friend that his Yashika CRT television has stopped displaying pictures.

14 Inch LG CRT television model 14CD1RBE screen picture washed out audio okay

I meet a client who wanted her TV checked by a technician and after asking her a few questions about the nature of the problem, I realized I was not getting the real picture of how the screen was since she was talking of picture being washed being out.

So I requested her to send me the screen shot of the TV screen via whatsup and this is what I got.

Sony home theatre DVD receiver model HBD-DZ350 dead now repaired

My neighbour brought to me this DVD receiver to my shop for repair a few days ago.

I did my usual initial test by connecting it to the power outlet even before opening it.

I noted the machine was powering on briefly and then shutdown, with this I concluded that the machine is getting powered but shutting down due to overload somewhere within the system.

With this in mind now it is time to open up and find out where the problem is.

How to troubleshoot any SMPS which main fuse keep on blowing

Whenever you find the main fuse is blown and darkened inside please don’t replace it and power on the equipment because chances are very high that it will blow again.

In this case substitute the main fuse (across the two pins of the main fuse holder with a series bulb.

You can make one easily as shown here below.