Sanyo TV overvoltage

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Sanyo TV overvoltage

Post by zandertech on Sat Jan 14, 2012 8:23 pm

sir patulong lng po i have sanyo tv here pinagawa the problem is nasunog ung power supply nia then after changing the parts nagkasupply pero over voltage na sya imbes na 130v ung B+ 250v ung nalabas sa smps nya panu po ba tuh? thanks,..

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Re: Sanyo TV overvoltage

Post by ultrasonic™ on Mon Jan 16, 2012 11:36 am

mhirap manghula... marami kasing chassis series ang sanyo at isa pa every chassis my kanya kanyang issues... kaya anong model number nito? o chassis nlng

on topic: mostly sa mga ganyan trouble SOP lagi chenecheck ang Voltage biaser(trimmer or fixed resistor) along the opto isolator kng meron mn opto ang units. mas familiar yan na tawag natin ng current limiter ng opto..

or pwede din mismung Power Reg ang hndi matinong ngreregulate...

add more info nlng Zander

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Re: Sanyo TV overvoltage

Post by zandertech on Mon Jan 16, 2012 2:07 pm

Sir one m0re thing p pla,.umuusok ung resistor na nakakabit sa pin1 ng optocoupler nia,.napalitan ko na ung optocoupler ayaw parin,.

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Re: Sanyo TV overvoltage

Post by zandertech on Mon Jan 16, 2012 2:15 pm

Chasis number nito sir,AC5G..

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Re: Sanyo TV overvoltage

Post by zandertech on Mon Jan 16, 2012 4:45 pm

Sir ok na po pla,..nag try ako mag substitute ng mas mataas na value ng resistor sa R617,. Ayos na po,thanx,

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Re: Sanyo TV overvoltage

Post by ultrasonic™ on Tue Jan 17, 2012 7:03 pm

congratz ts kng ganun...

@sis zander, iyan ba un..? connected pa rin sa internal phototrannie

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Re: Sanyo TV overvoltage

Post by zandertech on Tue Jan 17, 2012 9:04 pm

yan nga un sir,.. Razz dinagdagan ko ng value ayun umayos na sya boss,.,

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Re: Sanyo TV overvoltage

Post by ultrasonic™ on Wed Jan 18, 2012 1:38 pm


so kasali pa rin sa B+ biaser.. (^_^
congratz kng ganun.. buti di aapektuhan ang hor. wide at vert. size ng video ? pasok pa rin cguro sa Vrms nya

bigyan kita ng 1point (^_^


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Re: Sanyo TV overvoltage

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