caramoan tour package

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Author Topic: SHARP 21V-K100M Valeo  (Read 7934 times)

Offline emj_e2

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Re: SHARP 21V-K100M Valeo
« Reply #20 on: June 12, 2009, 12:32:59 PM »
shutdown circuit ng sharp. sikreto pa yata yan. pero kung matiyaga ka- mahahanap mo yun dito. meron ng nag post nun. :)
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Re: SHARP 21V-K100M Valeo
« Reply #20 on: June 12, 2009, 12:32:59 PM »

Offline Woots29

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Re: SHARP 21V-K100M Valeo
« Reply #21 on: June 12, 2009, 02:15:51 PM »
ung resistor na galing sa flyback papuntang vertical
check mo sir yun ;D
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Re: SHARP 21V-K100M Valeo
« Reply #21 on: June 12, 2009, 02:15:51 PM »

Offline technoquest

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Re: SHARP 21V-K100M Valeo
« Reply #22 on: June 12, 2009, 08:37:03 PM »
pwede maiba ang kulay, karaniwan niyan nakakaroon ng retrace line (parang guhit sa papel pang grade school) 

kuha  ko po iyong  retrace line, na-tackle na yan kasi ng mga teacher namin

nag kakaroon ba ng high voltage yan ? kasi kung hindi nag kakaroon ng high voltage hindi gumagana ang horizontal osc. ng tv kaya babalik yan sa standby mode. wala magbibigay supply sa vertical IC. 

   

meron naman po siyang high voltage sa HOT  kaya lang mga after 5 seconds  trip niya iyong relay

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Re: SHARP 21V-K100M Valeo
« Reply #22 on: June 12, 2009, 08:37:03 PM »

Offline technoquest

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Re: SHARP 21V-K100M Valeo
« Reply #23 on: June 12, 2009, 08:41:39 PM »
ung resistor na galing sa flyback papuntang vertical
check mo sir yun ;D

ok po siya  sir

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Re: SHARP 21V-K100M Valeo
« Reply #23 on: June 12, 2009, 08:41:39 PM »

Offline emj_e2

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Re: SHARP 21V-K100M Valeo
« Reply #24 on: June 12, 2009, 08:47:11 PM »
maliban sa shutdown circuit, palit eeprom. try mo.surface mounted ba yan? careful sa pag baklas. :)
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Re: SHARP 21V-K100M Valeo
« Reply #24 on: June 12, 2009, 08:47:11 PM »

Offline technoquest

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Re: SHARP 21V-K100M Valeo
« Reply #25 on: June 12, 2009, 08:54:42 PM »
maliban sa shutdown circuit, palit eeprom. try mo.surface mounted ba yan? careful sa pag baklas. :)

nasubukan ko na rin yan pero wala pa rin

Offline ultrasonic™

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Re: SHARP 21V-K100M Valeo
« Reply #26 on: June 12, 2009, 09:03:16 PM »
kuha  ko po iyong  retrace line, na-tackle na yan kasi ng mga teacher namin

meron naman po siyang high voltage sa HOT  kaya lang mga after 5 seconds  trip niya iyong relay

hhmmm...  it so familiar
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Offline emj_e2

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Re: SHARP 21V-K100M Valeo
« Reply #27 on: June 12, 2009, 09:03:59 PM »
hmm. special trouble. pag na palitan mo na yung 3 items s shutdown circuit and same result pa rin- package deal na yan. ;)
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Offline technoquest

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Re: SHARP 21V-K100M Valeo
« Reply #28 on: June 12, 2009, 09:05:10 PM »
hhmmm...  it so familiar

sir  may advise po pa kayo maibibigay  gaya ng trouble na ito?

Offline Siramiko

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Re: SHARP 21V-K100M Valeo
« Reply #29 on: June 12, 2009, 09:08:06 PM »
buo ba ang opto coupler nyan ?
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Offline technoquest

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Re: SHARP 21V-K100M Valeo
« Reply #30 on: June 12, 2009, 09:11:05 PM »
hmm. special trouble. pag na palitan mo na yung 3 items s shutdown circuit and same result pa rin- package deal na yan. ;)

ano po ang ibig  ninyong sabihin  sir ?  

Offline ultrasonic™

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Re: SHARP 21V-K100M Valeo
« Reply #31 on: June 12, 2009, 09:13:18 PM »
meron naman po siyang high voltage sa HOT  kaya lang mga after 5 seconds  trip niya iyong relay

ask aku may nakukuha  ka bang 5V sa mga taxs swicth ? 
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Offline technoquest

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Re: SHARP 21V-K100M Valeo
« Reply #32 on: June 12, 2009, 09:18:03 PM »
buo ba ang opto coupler nyan ?

sir wala naman pong opto dito sa board ?

ask aku may nakukuha  ka bang 5V sa mga taxs swicth ? 

meron po sir

Offline Siramiko

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Re: SHARP 21V-K100M Valeo
« Reply #33 on: June 12, 2009, 09:20:52 PM »
kuha  ko po iyong  retrace line, na-tackle na yan kasi ng mga teacher namin

meron naman po siyang high voltage sa HOT  kaya lang mga after 5 seconds  trip niya iyong relay

pagnagtrip ba ang relay meron parin bang high voltage ?

ang ibang relay kasi ang dinadrive lang et degauss kaya after ilang seconds lang nagtrip talaga yun
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Offline ultrasonic™

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Re: SHARP 21V-K100M Valeo
« Reply #34 on: June 12, 2009, 09:22:45 PM »
so meron, hhmmm

sir  ask aku  ulit  para makuha agad natin ang status ng unit na yan

during ba sa pag-switch-on mu tumutuloy ang 110V sa H-out at yung sinasabi mu na 145V sa secondary caps.  bumabagsak ba into 110V ?
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Offline emj_e2

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Re: SHARP 21V-K100M Valeo
« Reply #35 on: June 12, 2009, 09:28:24 PM »
float mo pins 18 & 26 ng IX2933. ground test mo on RX1. pag halos parehas forward and reverse reading- shorted ang IX. sukatan mo pala ang ZD361- dapat 9volts pag on mo. :)
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Offline technoquest

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Re: SHARP 21V-K100M Valeo
« Reply #36 on: June 12, 2009, 09:34:41 PM »
pagnagtrip ba ang relay meron parin bang high voltage ?

ang ibang relay kasi ang dinadrive lang et degauss kaya after ilang seconds lang nagtrip talaga yun

dalawa po kasi ang relay nito for controlling degauss coil at saka iyong switch patungong flyback


so meron, hhmmm

sir  ask aku  ulit  para makuha agad natin ang status ng unit na yan

during ba sa pag-switch-on mu tumutuloy ang 110V sa H-out at yung sinasabi mu na 145V sa secondary caps.  bumabagsak ba into 110V ?

opo  ganun nga po

Offline Siramiko

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Re: SHARP 21V-K100M Valeo
« Reply #37 on: June 12, 2009, 09:40:55 PM »
dalawa po kasi ang relay nito for controlling degauss coil at saka iyong switch patungong flyback


opo  ganun nga po

parang over voltage yan , di ko lang alam kung may x-ray protect yan ic mo. nagtrip kapag sobra ang boltahe 
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Offline ultrasonic™

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Re: SHARP 21V-K100M Valeo
« Reply #38 on: June 12, 2009, 09:41:37 PM »
opo  ganun nga po

ahh..  ok  kuha ko..  hmmm..  ask na naman po aku ulit  as a follow-up  questions..


sa  pagpress mu ng taxs switch para ma pa-power  mu ang TV diba tutuloy  yung B+ sa FBT  tapoz  trip na nmn... tama diba?  may  main question is this...  after mag-trip  yung relay   mapa-power mu ba ulit?

(^_^)
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Offline ultrasonic™

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Re: SHARP 21V-K100M Valeo
« Reply #39 on: June 12, 2009, 09:49:14 PM »
@Sir  technoquest  based on my  experience sa mga board na yan noraml  po yang 145V voltage reading nakukuha nyu  sa second filter caps.  magda-drop lng yan sa 110V pagnaka-load na yung Horizontal  section nyu  at pagmay saturation mangyayari   


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Re: SHARP 21V-K100M Valeo
« Reply #39 on: June 12, 2009, 09:49:14 PM »

 

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