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DMQ-2147 Daewoo replaced capacitor still problem   Goto page 1, 2  Next  
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Neuron



Joined: 11 Dec 2011
Posts: 7

PostPosted: Thu Dec 15, 2011 2:03 pm    Post subject: DMQ-2147 Daewoo replaced capacitor still problem Reply with quote

The TV is a standard Daewoo

Before cap replace:
The first symptom I noticed was that the image was shrinked a bit by width and spreaded a bit by height. I could barely see the channel's logo.
After a week when I was switching it on there was a noise coming from the transformer, the image was bad, and there was no sound. After 2-3 minutes all these were gone and the tv was OK.

I opened it and a 100μF 160v cap was bulged, I replaced it with a new 100μF 450v and it was almost fixed.
Now when I switch it on the sound is OK and the image is clean bad totally dark. It lightens a little at the beginning but it takes 15 minutes to become normal...
I cant see something else in the circuit. What can it be?
Also I adjusted the buttons from the CRT neck circuit before cap replace and readjusted them after, but I had to set full lightness in order to have a normal image.

---moderator note: edited title to include model number---
Google

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kuhurdler



Joined: 28 Dec 2006
Posts: 2852
Location: Overland Park, KS

PostPosted: Thu Dec 15, 2011 6:56 pm    Post subject: Reply with quote

ahh, the standard Daewoo. What model is that one?
JTS1957



Joined: 21 Jan 2009
Posts: 2286
Location: Far, Far Away

PostPosted: Fri Dec 16, 2011 1:39 am    Post subject: Reply with quote

The one with the glass bulb that you watch.
kuhurdler



Joined: 28 Dec 2006
Posts: 2852
Location: Overland Park, KS

PostPosted: Fri Dec 16, 2011 8:44 am    Post subject: Reply with quote

This is the one with the buttons on it, right?
JTS1957



Joined: 21 Jan 2009
Posts: 2286
Location: Far, Far Away

PostPosted: Fri Dec 16, 2011 11:29 am    Post subject: Reply with quote

Don't forget the knobs, levers and indicators. Cool
Google

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kuhurdler



Joined: 28 Dec 2006
Posts: 2852
Location: Overland Park, KS

PostPosted: Fri Dec 16, 2011 12:42 pm    Post subject: Reply with quote

oh. I was thinking of a different one.
JTS1957



Joined: 21 Jan 2009
Posts: 2286
Location: Far, Far Away

PostPosted: Fri Dec 16, 2011 3:11 pm    Post subject: Reply with quote

We really shouldn't be pulling neuron's axon. Smile
Neuron



Joined: 11 Dec 2011
Posts: 7

PostPosted: Fri Dec 16, 2011 4:47 pm    Post subject: Reply with quote

lol is it really that important to know the model!

Ok I will check but I expect from you two to reply ahh model rt8469st3992 just replace r255 and you are fine.
JTS1957



Joined: 21 Jan 2009
Posts: 2286
Location: Far, Far Away

PostPosted: Fri Dec 16, 2011 5:09 pm    Post subject: Reply with quote

Be thankful we didn't recommend that you replace the sets Flux Capacitor. Razz

BTW, you'll have to do better:
You searched for: rt8469st3992
Unfortunately your search didn't return any results.
Neuron



Joined: 11 Dec 2011
Posts: 7

PostPosted: Sat Dec 17, 2011 5:09 am    Post subject: Reply with quote

hah I think it would be your problem if you assume that my tv is a time machine because you dont know the model.
model: DMQ-2147
there you are Wink
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