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HanNspree HSG1066 repair
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HanNspree HSG1066 repair
Symptom:No inidcator, no 5v or 16V
Cuases: Blow fusible resistor R808 0.2 Ohm in the Primary side for B+ feeding the SMPS IC due to shorted out snubber cap C809 100pF 1000V (connected between the Source and Drain of the power MOSFET).Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Tags: None
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Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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Re: HanNspree HSG1066 repair
Nice fix. Strange to see disc ceramic fail, they tend to be quite reliable. Perhaps the design exposes it to over 1kV on some of the switching points, or the part is not rated for 1kV continuously.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
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Re: HanNspree HSG1066 repair
Originally posted by tom66 View PostNice fix. Strange to see disc ceramic fail, they tend to be quite reliable. Perhaps the design exposes it to over 1kV on some of the switching points, or the part is not rated for 1kV continuously.Muh-soggy-knee
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Re: HanNspree HSG1066 repair
MOSFETs are commercially available up to 3kV breakdown voltages, but you will not see it in consumer gear. I have seen 900V rated FET in flyback converter once.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
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