Astron 14" di buo ang screen

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Astron 14" di buo ang screen

Post by geof79 on Fri Aug 11, 2017 12:26 am

Pa 2l0ng nman mga boss. I2 kc ang liwanag ng screen nya d buo. Nsa gitna lng na parang maliit na 4table dvd monitor. Maitim sa taas ibaba taz sa gilid kbilaan. Ntry ko na plitan ng vertical ic pero ganun pa rin. My mga knalawang na transistor at resistor na ako pnlitan pero wlng ngbago. San na kya cra n2? Tnx..
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Re: Astron 14" di buo ang screen

Post by Hertz on Mon Aug 14, 2017 10:57 pm

Direct replace H-out. pag ganun pa rin. pasok sa Service mode at galawin ang screen size

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Re: Astron 14" di buo ang screen

Post by geof79 on Fri Aug 18, 2017 12:16 pm

Tnx sir hertz. D ko pa ulit i2 ngagawa. My nkta ako cra na ecap 160v/130uf d ko pa npapalitan. Pag my tama ba h-out maaring ganun ang sanhi ni2 ang pgliit ng screen? Bagsak b+ ni2 nsa 80-90 lng. Bka dhl nrin cra un ecap.
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Re: Astron 14" di buo ang screen

Post by geof79 on Fri Aug 18, 2017 12:21 pm

D2499 h-out ni2. Sa kramihan ko nbubuksan D1555. Ask ko nrin kung anu ibng h-out pwd gmitin sa gni2? Tnx
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Re: Astron 14" di buo ang screen

Post by geof79 on Sat Aug 19, 2017 3:58 pm

Ang npapancn ko pla d2 pg e off ang tv my bakat na liwanag ng blue red taz green. Mga mgkakadikit na tuldok un sa screen.
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Re: Astron 14" di buo ang screen

Post by ultrasonic™ on Sat Aug 26, 2017 1:22 am

direct repalce ka nga ng ecap 100uf/50V sa vertical section

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Re: Astron 14" di buo ang screen

Post by geof79 on Sun Aug 27, 2017 6:08 pm

Tnx d2 sir ultra. Update ko pg nagawa ko na mga cnbi nyo. Bc pa kc sa ibang gawain.
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Re: Astron 14" di buo ang screen

Post by arkin on Mon Aug 28, 2017 10:16 pm

sa tingin ko b+ ecaps problem yan.
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Re: Astron 14" di buo ang screen

Post by ultrasonic™ on Tue Aug 29, 2017 9:40 pm

^ Oo nga noh.. pwde... agreed ako dyan Sis

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Re: Astron 14" di buo ang screen

Post by geof79 on Tue Aug 29, 2017 10:57 pm

Update lang, ngpalit na ako ng mga ecaps sa b+ taz sa vertical section pero ganun pa rin. Bagsak nga b+ ni2. Ask ko lng kung pwd mg hang ng b+ sa flyback taz mg test kung bagsak pa rin ang b+ ni2?
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Re: Astron 14" di buo ang screen

Post by ultrasonic™ on Tue Aug 29, 2017 10:59 pm

^ pwde iyan Sis.. pag bagsak pa rin after hinang ay balik sa bias/feedback ckt... kung my trimmer sa B+ adj ay tanggalin mo muna yan at direct replace ng fixed resist.. refer for 1K ohm.. then V test ulit..

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Re: Astron 14" di buo ang screen

Post by geof79 on Tue Aug 29, 2017 11:48 pm

Ok tnx. Kht hndi nb bunutin ang h-out?
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Re: Astron 14" di buo ang screen

Post by geof79 on Wed Aug 30, 2017 11:09 am

Hrap hulihn ng cra. Nging ayos na ang b+ pero d pa rin nbuo liwanag ng screen.
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Re: Astron 14" di buo ang screen

Post by geof79 on Wed Aug 30, 2017 2:54 pm

My zoom nga pla i2 sa remote pero d nman gumagana pg pnpindot. Ska cnubokan ko nrin mg adjust sa s-mode d pa rin mpalaki. D kya sa transfo na i2 nkakabit sa flyback? Dun kc dumaan un papunta sa yoke. Ncheck ko nrin sa yoke wla nman putol.
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Re: Astron 14" di buo ang screen

Post by geof79 on Wed Aug 30, 2017 2:58 pm

D kya picture tube na cra o flyback pg gni2? Halos maisa isa ko na e check d ko pa rin mbuo.
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Re: Astron 14" di buo ang screen

Post by geof79 on Mon Sep 04, 2017 12:40 pm

Update lng. Npabuo ko na sna liwanag ng screen n2. Kya lng ng black out. My pumipitik pitik samay an0de cap kya pnalitan ko. Pg power nwla na taz bgla bumuo lwanag. Sumubra nman kya adjust ako sa smode. My parang sumisirit sa loob ng flyback kc wla man butas. Huli na ng mpancn ko nag overheat at lumubo ang flyback. Bgla shutd0wn ang unit. My nagawa kya akong mali mga master?
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Re: Astron 14" di buo ang screen

Post by Hertz on Tue Sep 05, 2017 11:22 pm

sa tingin ko. wala kang pagkakamali. sa simula't sapol. may problema na talaga ang flyback nyan kaya ka nag kakaroon ng width at vertical size problem. at iyong very white cause ng pag high oscillation

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Re: Astron 14" di buo ang screen

Post by geof79 on Wed Sep 06, 2017 9:20 pm

Tnx sa reply sir hertz. Maingat pti ako sa pg resolder taz kung my palitan man ako cgurado na pareho pyesa. Mhrap kc mg tsamba lng bka msabogan.
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Re: Astron 14" di buo ang screen

Post by ultrasonic™ on Thu Sep 07, 2017 2:12 pm

agreed ulit ako sa conclusion mo Sir Hertz

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Re: Astron 14" di buo ang screen

Post by romnick22 on Thu Nov 09, 2017 6:23 am

abang mode ganito rin ang problema ng astron ko 14 inch din po ,,,akin naman na stock halos 1and a half year dead set pinalitan ko ng regulator tsak isang transistor sa may supply niya.. pagbukas ko ganyan na rin hindi buo ang screen niya .. tapos wala siya nasasagap na station,,abang mode by the way po si batmantech ito nalimutan ki kasi yung password ko hahaha
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Re: Astron 14" di buo ang screen

Post by ultrasonic™ on Fri Nov 10, 2017 10:32 pm

kaya nyo iyan.. recheck lang sa mga test point para makausad agad

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