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akia tv/dvd combo wont turn on at all 6 months old

 
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jeffrey b
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PostPosted: Tue Mar 01, 2005 2:52 am    Post subject: akia tv/dvd combo wont turn on at all 6 months old Reply with quote

used to make faint clicking noise. I isolated the noise to a power relay on p.c.board . I purchased a new one , re-soldered it back , no luck.I'm just wondering if someone has heard of a common problem with these.It was fine for 6 months then just didn't turn on . Plese HELP!
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kev



Joined: 02 Nov 2005
Posts: 2

PostPosted: Wed Nov 02, 2005 7:15 pm    Post subject: Reply with quote

Whats the power on led doing
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fongs
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PostPosted: Fri Nov 04, 2005 6:02 am    Post subject: Reply with quote

Hi,

The clicking noise maybe due to your power supply trying to fire up ('click!') only to cut itself off again (another 'click!') as protection against a faulty part. I don't think its the relay at fault.

I suspect a short in the HOT (Horizontal Output Transistor) itself. This is usually the largest transistor in the circuit and its mounted on heatsink close to the FBT (Flyback Transformer). Replacing it might help... but in most cases, there could be other parts in the horizontal circuit that is faulty.

U may or may not see the Power LED light up depending on the design of the power supply. Smile
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samhaf
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PostPosted: Mon Mar 03, 2008 5:28 am    Post subject: akai tv/dvd combo Reply with quote

happened to me as well. bought it from costco at the end of 2006 and suddenly it stopped working at the beginning of 2008. there goes the one-year warranty.
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michaelwalter



Joined: 09 Mar 2008
Posts: 1
Location: mammoth lakes

PostPosted: Tue Mar 11, 2008 1:41 am    Post subject: Reply with quote

I have an akai LCD does same thing.I was told check power supply and replace bulged capacitors.There is about 16 different ones and about 9 bulged so im gonna try this.good luck
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