Samsung LED TV UA22ES500R Power problem
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AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: LCD - LED TV REPAIR
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Samsung LED TV UA22ES500R Power problem
Master help po.. Ang problema po nito minsan nawawala ang standby power nya pag matagal syang naka-standby.. Minsan nmn mamatay sya kusa sabay mawawala yung standby.. na-observe ko rin po pag hinugot mo na yung saksakan matagal po mawala yung ilaw nya.. mga 32 seconds pa bago mamatay..
Pag binuksan ko ung unit minsan bumabalik yung standby power nya... check ko for loose connections walang problema nmn po.. minsan naman po hugot saksak ng plug sa outlet ng ilang beses nagkaka-standby power sya.. nung hindi talaga nag-power nag test po ako ng voltages.. wala po akong nakukuha sa 13V at 5V pin sa secondary.. pero merong voltage sa main ecap nya..
Possible ba na may tama na opto isolator nito? Any inputs please..
Pag binuksan ko ung unit minsan bumabalik yung standby power nya... check ko for loose connections walang problema nmn po.. minsan naman po hugot saksak ng plug sa outlet ng ilang beses nagkaka-standby power sya.. nung hindi talaga nag-power nag test po ako ng voltages.. wala po akong nakukuha sa 13V at 5V pin sa secondary.. pero merong voltage sa main ecap nya..
Possible ba na may tama na opto isolator nito? Any inputs please..
Lenaren- C Battery
- Posts : 294
Join date : 2012-02-26
Location : Iloilo
Re: Samsung LED TV UA22ES500R Power problem
abang mode muna ako sis..baka mapadaan si sir ultra..nacheck mona yung mga diode nya sis..??
alvinquimbo- 12V BATTERY
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Join date : 2014-03-29
Age : 35
Location : Davao City
Re: Samsung LED TV UA22ES500R Power problem
leak ecaps.. pero mas malapit sa hatol si PWM ic ng Main regulator mo.. Direct Replace mo sis..
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: Samsung LED TV UA22ES500R Power problem
Ganun pala yun sir ultra..+1 po sa inyo..may bago nanaman natutunan...
alvinquimbo- 12V BATTERY
- Posts : 773
Join date : 2014-03-29
Age : 35
Location : Davao City
Re: Samsung LED TV UA22ES500R Power problem
Thanks sis ultra.. 1+ po sa inyo.. try ko po palitan sa saturday.. kanina nung pinaandar ko walang power sa secondary.. tapos nung binuksan ko yung unit nag-test ako ng voltages wala pa rin output.. tapos nung tinanggal ko ulit ung plug at kabit ulit nagpower naman.. ...
Lenaren- C Battery
- Posts : 294
Join date : 2012-02-26
Location : Iloilo
Re: Samsung LED TV UA22ES500R Power problem
intermittent problem nga iyan due PSU failure.. wag din e wala sa suspect sina opto isolator at TL431a para sigurado..
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: Samsung LED TV UA22ES500R Power problem
Thanks sis sa input.. try ko muna palitan yung opto isolator at TL431 kasi may available ako nyan.. test ko lang sis kung anong mangyari..
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Lenaren- C Battery
- Posts : 294
Join date : 2012-02-26
Location : Iloilo
Re: Samsung LED TV UA22ES500R Power problem
Update lang po mga master.. na try kung palitan yung opto kasi yun lang available ko.. gumana nmn.. nag-on nmn po.. kaso nawawala yung ilaw (standby led) pag matagal naka stand by.. Ibig sabihin may problema pa rin.. si PWM na malamang salarin nito..
Lenaren- C Battery
- Posts : 294
Join date : 2012-02-26
Location : Iloilo
Re: Samsung LED TV UA22ES500R Power problem
mukhang pwm na iyan sis lalot kung buo si error amp tl431a
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: Samsung LED TV UA22ES500R Power problem
Update lang po.. OK n po ung unit.. PWM po may sayad.. Thanks master ultra..
Lenaren- C Battery
- Posts : 294
Join date : 2012-02-26
Location : Iloilo
Re: Samsung LED TV UA22ES500R Power problem
oy welcome at congratz sis..
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: Samsung LED TV UA22ES500R Power problem
pwm pala pag ganyan. congrats master.
Electro- 24V BATTERY
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Re: Samsung LED TV UA22ES500R Power problem
master Lenaren ano pala ang number ng pwm para mailista namin sa notebook
Electro- 24V BATTERY
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Re: Samsung LED TV UA22ES500R Power problem
Sensya na po mga masters... now lang po naka-online...
@ Master Electro eto po number nya sir... 3BR1065JF..
@ Master Electro eto po number nya sir... 3BR1065JF..
Lenaren- C Battery
- Posts : 294
Join date : 2012-02-26
Location : Iloilo
Re: Samsung LED TV UA22ES500R Power problem
Ayos. +1 sayo master
Electro- 24V BATTERY
- Posts : 1488
Join date : 2010-08-26
Age : 35
Location : Calinan Davao City
AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: LCD - LED TV REPAIR
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