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AELEXIAN EMPIRE

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TV PROBLEM........................

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AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: (Electronics Technician Board) :: CRT TV REPAIR

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TV PROBLEM........................ Empty TV PROBLEM........................

Post by 143baifern Wed Oct 03, 2012 12:07 pm

hello sa inyo mga boss???

tulong pohhh... ano po sira kapag ang tv wala picture,hindi umilaw ang heater. kapag e discharge ko ang anode cap walang spark o wla akong naririnig na pitik ng kuryente. pero naka ilaw ang red led sa tv...

ano po problem nyan??? trouble shoting kasi kami sa school eehhh....hehehehe Very Happy thankz sa inyo mga reply boss kung mag rply kayo ...heheheh Very Happy
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Post by dodongleo Wed Oct 03, 2012 2:28 pm

meaning merong standby power?
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Post by jojogreg Wed Oct 03, 2012 5:14 pm

mag sukat muna ng b+ kng meron..then check secondary power section baka meron missing voltage.
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Post by 143baifern Wed Oct 03, 2012 5:14 pm

uo...merong standby power...pero hindi mag on ang tv...
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Post by 143baifern Wed Oct 03, 2012 5:15 pm

ok salamat...
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Post by 143baifern Wed Oct 03, 2012 5:15 pm

ano pala purpose nang B+???
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Post by jojogreg Wed Oct 03, 2012 7:59 pm

supply yan papunta flyback..
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Post by ultrasonic™ Thu Oct 04, 2012 12:54 pm

^ much better kng sasabhin nating supply output xa ng power supply circuit niyo "regulator section"

hanapin lng ang secondary filter ecaps - yan ang B+ supply mu.
kng di masxadong familiar hanapin lng ang pumapangalawa sa pnakamalaking capacitor sa main board "xxxuf/160V" ang mdalas na numero, ito ay mlapit lagi sa SMPS/chopper transfo

btw anung model # ito? o di kya chassis?

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Post by ultrasonic™ Thu Oct 04, 2012 1:01 pm

phabol umiilaw pala ang led indicator ng unit mu..
bka nga nka standby lng ang unit..

gawin mu nlng muna cguro ito

check mu muna kng umaaabot ba sa fbt ang B+ mu?
check kng good ang h-out mu?
check kng my 5v supply ka sa system con ic
check kng my 9V kau sa jungle/chroma ic


much better kng maiipost mu ang modelo para my guide kami sa tinutrouble mu

_________________
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former 2nd member

im always walking on the rain so that no one could see me crying
ultrasonic™
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