Wednesday, March 26, 2014

Samsung HPS4253 no power, PSPF391A01A / BN96-03252A power supply repair

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Repair service for Samsung PSPF391A01A / BN96-03252A power supply which is used in the following Samsung Models,      HPR4272X/XAA, HP...
1 comment:
Monday, February 24, 2014

Sony BRAVIA KDL40EX600, no power, APS-272(CH) power supply repair

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Sony BRAVIA KDL-40EX600 Failure symptom: No power Upon diagnosis of the power supply I found that  power MOSFETs Q6101 and Q6102 we...
3 comments:

Sony BRAVIA KDL-55EX500, no power, APS-256(CH) power supply repair

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Sony BRAVIA KDL-55EX500 Failure symptom: No power Upon diagnosis of the power supply I found that  power MOSFETs Q6304 and Q6305 we...
2 comments:
Tuesday, October 2, 2012

Samsung power supply repair

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HPT4254X/XAA,  BN44-00161A  Professional Repair : If you are interested in having a BN44-00161A, BN44-00162A or any other power supply repa...
Sunday, July 24, 2011

Viewsonic VG1930WM no power, repaired

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I just finished repairing a Viewsonic VG1930WM that had no power, no standby LED, completely dead. I opened up the monitor and checked the ...
4 comments:

Viewsonic VX910 no power, repaired

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I recently did a repair on a Viewsonic VX910 that had no power. Upon opening the monitor I could see that someone had already replaced all t...
4 comments:
Monday, June 20, 2011

Philips 37MF321D/37, 37MF331D/37, 715T2056-1 Power Supply Repair

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We have been receiving quite a few 715T2056-1 power supplies for repair from Philips 37 MF 321D/37 and 37 MF 331D/37 LCD TVs. The failure...
13 comments:
Sunday, June 19, 2011

HPT4234, HPT4254,HPT4264, BN44-00161A and BN00162A power supplies repaired

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If you are interested in having a BN44-00161A, BN44-00162A or any other power supply repaired professionally then email johnpreher@gmail.co...
3 comments:
Wednesday, June 8, 2011

Samsung HPT5044 (HPT5044X/XAA) BN44-00162A power supply repaired.

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To learn how I repaired this power supply email johnpreher@gmail.com HPT4254X/XAA,  BN44-00162A  Professional Repair : If you are inter...
8 comments:
Wednesday, May 25, 2011

Testing HV transformers in LCD TV inverter circuits

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This article is from the Preher -Tech May 2011 newsletter. In this article I show you how easy it is to test LCD TV inverter transfo...
2 comments: