Amonits MW9BNK repair question

I have a Amonits MW9BNK 19 inch TFT display.

First - Does this look like a bad capacitor? The goo coming out the top and out by the legs makes it seem suspect.

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I could not find any information on this model, but the power supply is an Emax:

PWR0501904004A Rev. 1 J700330004DP

Symptoms:

Over a period of time the color quality diminished. Recently (on boot-up) the BIOS screen would show up and then when Windows XP started to load the screen would go blank. After the PC stopped making hard drive noises, cycling the power on/off would bring the screen back on. The display would function with poor color/contrast/brightness/whatever until the resolution was changed, then the display would go blank again.

I recently started using a 42 inch plasma TV as a primary display to get better color balance and display properties. However, I hooked up the Amonits without changing the resolution back down to its native resolution, and the Amonits has not worked since.

It will appear to try and cycle on, then make a weird electronic noise, then cycle on and off, without any information being displayed on the screen. The display will seemingly cycle power on/off as indicated by the power LED on the front of the display.

Question:

Do any of you think that replacement of this capacitor might fix the problem, or is this unit a basket case?

I could not find any other parts on the power supply board, or the display board, that looked bad. I am using the RGB input port and do not have a DVI output from the PC.

Any information that may be available would be appreciated. Looking up the power supply did not bring much, either. This is a cheap, made in China display that I wish to use for text type use (such as reading this group) when the TV is in use as a TV.

Thank you, Steve

Reply to
SteveF
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No, see below.

That isn't goo coming out of the top & legs - it is some type of glue or other fixative added during manufacturing, to keep the cap and the ferrite beads on the legs in place.

I agree that the symptoms likely point to a PSU-related fault, but I don't know that model to be able to offer other detailed suggestions.

Based just on experience with other PSUs, I would look _closely_ at the electrolytics (top _and_ bottom of each) for _any_ sign of distress / bulging, and check for any dry solder joints.

Reply to
Sam

Thank you. I already looked for obvious problems with electrolytics. None of them have any abnormal bulges. A closer inspection of the solder joints will be performed. I think I need a magnifying glass with a higher power, or new eyes. :-)

Reply to
SteveF

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