Daewoo 28" HOT problem
Daewoo 28" model DTL-28G7, chassis CP775 (probably). Problem is the
HOT (2SD1880) gets very hot during operation and blows after one hour. Flyback pulse and base drive waveforms looks ok. The set works just perfect with no indications for something wrong. Any advice or schematic is appreciated. Best regards Stefan |
Daewoo 28" HOT problem
Did you look for the small capacitor off the primary of the driver transformer,
usually a 1uf? This will cause the output to short if it's open. Real common on Daewoo. Ron Daewoo 28" model DTL-28G7, chassis CP775 (probably). Problem is the HOT (2SD1880) gets very hot during operation and blows after one hour. Flyback pulse and base drive waveforms looks ok. The set works just perfect with no indications for something wrong. Any advice or schematic is appreciated. Best regards Stefan |
Daewoo 28" HOT problem
Hi,
Thanks for your advice, unfortunately I already replaced the cap. (1 uF/50V) with hope it should improve base drive. Do you have the schematic or other advice? Best regards Stefan ospam (RonKZ650) wrote in message ... Did you look for the small capacitor off the primary of the driver transformer, usually a 1uf? This will cause the output to short if it's open. Real common on Daewoo. Ron Daewoo 28" model DTL-28G7, chassis CP775 (probably). Problem is the HOT (2SD1880) gets very hot during operation and blows after one hour. Flyback pulse and base drive waveforms looks ok. The set works just perfect with no indications for something wrong. Any advice or schematic is appreciated. Best regards Stefan |
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