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Daewoo 27'' TV

TV will not power on? Checked internal fuse and it is good. Checked voltage up to the relay. Not sure if the relay is latching or not?

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Many times the power supply or the high voltage board is the culprit with this tv. Though instead of spending the money to buy a new part and fix this, I would recommend upgrading to a newer LCD tv since they are fairly cheap. Is there anything clicking or anything at all that you can add to help narrow down the problem.


Posted on Jul 11, 2009


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Posted on Jan 02, 2017


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I have no power at all after replacing starter motor and starter relay

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If all the parts you replaced are known to be good, then you will need to get a voltage meter and start checkin where the power stops at. Check both sides of the fuse to make sure your getting power to the fuse and to make sure it is good, the on to the relay, if it clicks when the key is turned on then it is good or on some models you can swap the horn relay to double check to make sure it is good, if your relay is clicking then check the wiring to the pump itself and locate where the voltage stops. You might very well have break in the wire to the pump or a bad ground on the pump itself.

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you need to check the voltage output of your power supply section.This power supply supply is a switching type power supply.there is a chopper transformer in there.its supply is a dc voltage unlike any other transformer which is AC supplied on the primary..First step.
1.Using a multitester measure the primary supply it is a DC voltage around 220v - 110 VDC
2.Measure the secondary output.The out put is AC voltage the supply for the B+ going to plyback is 115vdc the second output is 12v run through a regulator and the regulator lower the voltage to 5vdc.this 5vdc supplies the system IC and the jungle IC.this ic process the switching of the plyback transformer and the plyback transformers output supplies the voltage of the whole system including your relay in the degaussing section....once the plyback is activated the tv will now turn on...

good luck!Hope i helped you..

please rate my help..god bless!

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No power

unplug the unit for 24 hours and try it again. if the unit doesnt come on at all, even after that, then the internal fuse is blown, or a power spike / surge has friend part of the internal power supply. you'll have the go through the warranty process of the manufacturer, or find a local tv repair shop.

Sep 24, 2009 | Daewoo DTQ-27S5FC 27" TV

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If youe tech inclined you can open the unit and see if the fuse is blown if you are uncomfertable on doing that then your going to need to take it into a repair shop.

Btw, I’m available to help over the phone in case u need at

Apr 21, 2009 | Daewoo DTQ-27S5FC 27" TV

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your tv has a  short  circuit, the power supply see that and put away the polarizatio n , you have to check  if transistor of power on flyback transformer is  good
or bad - delfo

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