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Author Topic: Sanyo 14" shut off oscillation..  (Read 1908 times)

Offline RonP

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Re: Sanyo 14" shut off oscillation..
« Reply #20 on: August 05, 2010, 04:37:56 PM »
oo! nga mga master..napakamot na nga ako eh!nahirapan na me tlaga sa TV na to pero di ako susuko hanggat di ko to makuha ang problema.Kahit nga master sa pag tulog ko iniisip ko kng anu tlaga ang problema ng sanyo na to..Ok! mga master sundin ko po lahat ng mga payo nyo..try ko sundin ang mga advise nyo master ultra at master bobbie....
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Re: Sanyo 14" shut off oscillation..
« Reply #20 on: August 05, 2010, 04:37:56 PM »

Offline bobbie

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Re: Sanyo 14" shut off oscillation..
« Reply #21 on: August 05, 2010, 05:09:38 PM »
kung eksakto yung diagram...chek mo yung linya ng PF (power failure) try mo ihang isa isa yung mga diode na pinanggalingan para ma isolate mo kung saan section siya nag protect... kadalasan nasa verticel yan, pag hindi chek mo yung linya na galing sa FBT... i check mo mga resistor ng digital tester o kaya actual replace mo na...SANA MAKATULONG
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Re: Sanyo 14" shut off oscillation..
« Reply #21 on: August 05, 2010, 05:09:38 PM »

Offline Roland

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Re: Sanyo 14" shut off oscillation..
« Reply #22 on: August 17, 2010, 10:57:03 PM »
@ ts,
 sir kung pareho yan sa schem na binigay ni sir ultrasonic, try mo kaya munang ihang yung h-out pin ng jungle/system ic tapos on mo ang unit tapos sukatan mo ulit kung bumabagsak pa rin ung 24 volts. kapag babagsak pa rin ibig sabihin hindi dahil sa nagprotect ang system kase di pa sya nagoscillate eh. maaring open or leaky yung filter caps ng 24 volts or short ung driver transistor ng hot or ung ecaps na malapit dun.
kapag di naman sya babagsak then maaring nagprotect nga ang system or isa sa mga diode sa PF line.

sana makatulong
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Re: Sanyo 14" shut off oscillation..
« Reply #22 on: August 17, 2010, 10:57:03 PM »

Offline ultrasonic™

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Re: Sanyo 14" shut off oscillation..
« Reply #23 on: August 18, 2010, 11:14:12 AM »
@TS  wala kaming magagawa dahil ikaw ang may  hawak ng TV at  nagtotrouble nyan...

ang maisa-suggest lang namin ay diagnose  muna kong anu ang dahilan ng power failure..

isa isahin  mu ang pag-disable ng mga protection circuit
para mas madali mu matukoy
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Re: Sanyo 14" shut off oscillation..
« Reply #23 on: August 18, 2010, 11:14:12 AM »

Offline RonP

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Re: Sanyo 14" shut off oscillation..
« Reply #24 on: August 20, 2010, 06:14:16 PM »
Master Roland,
     (Tanung lang po ako kasi po may kaibgan me nung college Roland din ang name nya Samsona ang Surename)....???
  Tama ho kau medyo malapit na po ang problema sa mga sinasabi nu.Ito mga ginawa ko hung ko yong output Load ng driver Transistor pero bagsak parin.Hung ko yong diode ng B+ bglang uminit ang filter cap ng 27V tama master tiyak my leak nga yong capacitor,..di ko pa napalitan pinabili ko muna may ari kasi sya daw ang bibili ng pyesa.Update ko na lang kayo mga master kung may resulta na.Baka nxt nxt wyk ko pa ulit ma troubleshoot kasi punta muna me ng china dis wyk for training...see u soon..mga master..
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Re: Sanyo 14" shut off oscillation..
« Reply #24 on: August 20, 2010, 06:14:16 PM »

Offline Roland

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Re: Sanyo 14" shut off oscillation..
« Reply #25 on: August 20, 2010, 08:52:50 PM »
kung pagpalit mo ng caps eh bagsak pa rin try mo kaya putulin yung linya ng 24 volts papuntang vertical ic tsaka yung papuntang jungle ic na may zener diode na 9 volts tsaka ung 24 volts na papuntang horizontal driver transformer. un lang ang pinakamalapit na dahilan bakit bumagsak. kung di na bumagsak isaisa mong ibalik ang pinutol mo hanggang makita mo salarin. kung babagsak pa rin wag naman sanang chopper(malayo pero malay mo di ba?) katayan mo ng manok na itim na kulay berde ang kuko hehehehehe joke lang. 

kinikilabutan ako sa "master roland"
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Offline Roland

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Re: Sanyo 14" shut off oscillation..
« Reply #26 on: August 21, 2010, 01:16:36 PM »
sya nga pala sir ts wag ka po maghang ng B+ na before po sa line na papuntang optocoupler dilikado po un kase baka pagon mo ng unit di nasesense ng optocoupler ang output voltage ng smps. baka un ung dahilan uminit caps mo sa 27 volts kase naghigh voltage na. hang mo kase diode ng b+ eh.
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Offline Antonio

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Re: Sanyo 14" shut off oscillation..
« Reply #27 on: November 11, 2011, 10:01:29 AM »
jungle ata nito ....la76818a
             vert output....la78040n

bagong pasok po ito sa shop
..........parehas po ang problema.......... ;D

sanyo
model....st-14sa1
chassis...st-14sa1-00
mag to troble po muna ako
.............gud am.......... :-*       



























   
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antonio tayag

Offline ultrasonic™

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Re: Sanyo 14" shut off oscillation..
« Reply #28 on: November 11, 2011, 01:48:37 PM »


^^  hijacker ka  sis Antonio...
gawa  ka  ng sarili  mung  thread  ;D
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Offline unitech

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Re: Sanyo 14" shut off oscillation..
« Reply #29 on: November 11, 2011, 02:33:54 PM »
pa sub nga po dito...
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Offline beNj2angeL

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Re: Sanyo 14" shut off oscillation..
« Reply #30 on: November 11, 2011, 04:48:02 PM »
Quote from: ultrasonic™ on November 11, 2011, 01:48:37 PM

^^  hijacker ka  sis Antonio...
gawa  ka  ng sarili  mung  thread  ;D

pa OT master..natatawa ako dito..o nga sis..gawa ka sarili mo thread..TS..pacheck baka meron nag leak na transistor secondary..thanks..
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Offline DJFEL

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Re: Sanyo 14" shut off oscillation..
« Reply #31 on: November 11, 2011, 08:12:56 PM »
Quote from: Antonio on November 11, 2011, 10:01:29 AM
jungle ata nito ....la76818a
             vert output....la78040n

bagong pasok po ito sa shop
..........parehas po ang problema.......... ;D

sanyo
model....st-14sa1
chassis...st-14sa1-00
mag to troble po muna ako
.............gud am.......... :-*       



























   



:)
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dj fel on the mix

Offline pEN DoTA

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Re: Sanyo 14" shut off oscillation..
« Reply #32 on: November 12, 2011, 07:25:05 AM »
binuhay ni hi jacker ang thead ang tagal na pala -August 20, 2010, 08:52:50 PM »


antonio's reply- Yesterday at 10:01:29 AM » ;D ;D ;D














 ;D ;D ;D ;D ;D ;D
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Offline pEN DoTA

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Re: Sanyo 14" shut off oscillation..
« Reply #33 on: November 12, 2011, 07:25:36 AM »
nandun pa sa china ang t.s.
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Offline Roland

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Re: Sanyo 14" shut off oscillation..
« Reply #34 on: November 12, 2011, 05:57:26 PM »
Quote from: pENdot on November 12, 2011, 07:25:36 AM
nandun pa sa china ang t.s.
ahak ka pendot  :D :D :D
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Online JiMmYbRaVø

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Re: Sanyo 14" shut off oscillation..
« Reply #35 on: August 13, 2012, 12:44:35 AM »
Ano po update nito?same model and problem ang pagawa sakin.ganitong ganito..help naman mga master..pwede po b pakibuhay ang thread na are?obviously binuhay ko na hakhak.ts nsa china ka pa dn b?anu po update nire sir?patulong naman po..2days ko na ginagawa tv.ganitong ganito din ay
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Offline pEN DoTA

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Re: Sanyo 14" shut off oscillation..
« Reply #36 on: August 13, 2012, 04:55:46 PM »
na check mo naba vertical ckts sis?
gawa ka nlang ng ibang thread.
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Offline pete

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Re: Sanyo 14" shut off oscillation..
« Reply #37 on: August 14, 2012, 05:36:57 AM »
na junk na yata ito 2011 pa eh... :P
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Online JiMmYbRaVø

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Re: Sanyo 14" shut off oscillation..
« Reply #38 on: August 14, 2012, 08:22:02 AM »
Bka nga po master..nyahaha
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Re: Sanyo 14" shut off oscillation..
« Reply #38 on: August 14, 2012, 08:22:02 AM »
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