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philips model 21PT3882/71R pa help mga master

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ultrasonic™
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Post by jojogreg Wed Oct 03, 2012 4:03 pm

saludo talga ako kay master ultrasonic.puede ba mag plus 4 syo master?..buti nlang nataguan ko etong website na eto.alam ko masasgot ang katanungan ko sa repair ng tv dito..salamat mga master.
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Post by ultrasonic™ Thu Oct 04, 2012 1:33 pm

^ invite ka sa mga friend mu..
then share ka rin dito

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Post by bjohn7908 Tue Oct 16, 2012 10:22 pm

master pwede ko bang balikan ang problema na ito? heheh (wa man goy lingaw) hmm may blink na rin po kc akong nakikita sa picture tube pag e on at pag e off may parang kidlat lang na nakikita
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Post by ultrasonic™ Wed Oct 17, 2012 1:30 pm

uu nmn.. mas madali nlng yan kasi my oscillation khit saglit...

pg ganyan ang scenario be sure agad na ok ang vert. section nyu.. then sunod nyu ang jungle area lalot ang 47/50v kasi isa yan sa common na sakit ng chassis na yan... ang c board din suyod ka rin jan.. pki double check din ng B+ supply nyu kng buo pa rin ba.. 47uf/160...

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Post by bjohn7908 Sun Oct 28, 2012 11:44 am

master may nasusukat din po akong 95v sa dalawang 47uf/160v. pwo sa jungle area mga master wala akong nakikitang 47/50v ang mayron lang ay ang 10/50v.

ang good news lang master napabalik ko na po ang ilaw sa pwet ng picture tube. may nakita lang akong putol na linya conecting from diode 6403 to one leg of flybck.
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Post by ultrasonic™ Mon Oct 29, 2012 2:42 pm

hhmmppfff kng wlang 4.7uf.. mukhang yan na nga yan.. direct sub ka ng 10uf... regarding nmn jan sa 6403. patungo yan sa -13v supply ng vert.. kaya ka still shutdown... pwde tatamaan pa rin ang vert. kya still suspect yan.. kng nkakasiguro ka nmng na ok ang vert drive mu.,.. try to adjust the screen & focus pot ng FBT bka my white balance protector itong unit...

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Post by bjohn7908 Tue Nov 13, 2012 10:59 pm

master makiki gulo nman po ako ulit, pa upd8 lang, is this a good sign or bad? may ilaw na po xa kaso white lang at may rainbow color sa gitna, even ruster sound wala din. ito po yung pic

philips model 21PT3882/71R   pa help mga master - Page 3 Philipswhitescreen
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Post by ultrasonic™ Thu Nov 15, 2012 12:14 pm


good sign yan sis kasi my improvement na... atleast may naaaninag ka na... in this tym alam mong nag oosciallate na ang FBT... iyang rgb color ay suspected ko ay cause iyan ng lamat ng deagussing

check mu ngayon ts ang Video supply mo sa C board 180v at resolder ka na rin sa parteng iyan

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Post by bjohn7908 Thu Nov 15, 2012 2:10 pm

ang video suply po ba master ay nasusukat don sa wire na galing sa jungle? cnxa po
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Post by ultrasonic™ Thu Nov 15, 2012 4:36 pm

nope iba iyan.. ang tinutukoy kng video supply ay ang supply ng RGB gun ng Picstube mo.. 150-180V iyan.. madali lang namang sundan.. hanapin lang ang ecap na placment number 2413 = 22uf/160V ang + terminal nyan ay ang Video supply mo.. dadalhin ka nyan hanggang sa C board at RGB gun (KR,KG & KB)... check mu kng presence pa rin ang supply jan at compare din kng equal pa ba...

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Post by bjohn7908 Thu Nov 15, 2012 6:06 pm

equal nman po yung mga supply about 156-157v
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Post by ultrasonic™ Mon Nov 19, 2012 1:29 pm

nag direct sub ka na ba ng filter ecaps?

try mu nga idisable pa isa isa ang mga RGB guns ?
then e-load mo ulit pa isa isa.. resolder na rin sa buong C board bago ka ulit bumalik pa balik sa jungle

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Post by Electro Wed Nov 21, 2012 1:42 pm

loose contact siguro ni master ultrasonic™
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