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Changhong no power

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ultrasonic™
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Changhong no power Empty Changhong no power

Post by geof79 Mon Nov 13, 2017 8:16 pm

Patul0ng nman. China board din i2. Ang parts ai
regulator DD5011
H-out D1555
Vertical D78040
sa tuner my 33v taz un 5v wlang supply. Bagsak ang b+ ska humihinga ang supply. San kya p0sible cra ni2. Tnx..
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Post by ultrasonic™ Wed Nov 15, 2017 10:30 pm

^ try mo tanggalin ang Trimmer sa B+ adj sis at palitan mo ng fixed resist na 1K.. sirain kasi ang trimmer ng chekwang model

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Post by geof79 Wed Nov 15, 2017 11:23 pm

Tnx sa reply sir ultra. Ng ok na supply ni2. My leak pla un ceramic na 102 nkaparralel sa diode primary. Kya cguro humihnga kuryente. Umakyat nrin sa 110v sa h-out. Pero un 180v sa fbt nsa 110v lng rin. Try ko nlng din un sbi mu. Plitan ko pa un trimmer. Ang prob pa un 5v sa tuner bagsak. Nsa 1v nlng nsukat ko. D ko pa mhuli ang cra.
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Post by geof79 Wed Nov 15, 2017 11:27 pm

Dagdag ko pa dti nkislap lng un power led. Taz ngbliblink nun umilaw na. Ngaun steady na i2 sa standby. Inuwe ko lng kc ang board. Pg bagsak ba un 180v sa fbt cra na kya i2 o my iba lng cra pa?
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Post by ultrasonic™ Wed Nov 15, 2017 11:28 pm

^ Good kung ganun.. try mo hinang ang eeprom baka may leak na.. kaya bagsak ang 5v mo.. or hinang mo ang remote sensor para mabawasan ang load ng 5v.. meron ding iba chekwang baord na hiwalay ang 5v pass reg.. pero same kinukunan ng source sa 12-11V galing psu..

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Post by ultrasonic™ Wed Nov 15, 2017 11:30 pm

iyang 180v o 110 ay usually normal reading iyan during or standby mode.. para coil lang kasi iyan na naka hilira sa B+ line.. kaya kung ilang ang B+ mo ay close range iyang 180 pin.. much better screen/g2 ang pang monitoring mo para exact horizontal oscillation

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Post by geof79 Wed Nov 15, 2017 11:39 pm

Ah ganun pla. Tnx sir. Tagal ko din bgo nahuli un ngpapatibok ng supply ni2. Tyagaan lng tlga at haba ng pasensya pag aaus. Hehe
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Post by geof79 Sat Nov 18, 2017 3:17 pm

Update lng. Ngpower na i2 pg kbit ko ng board. Ngka problema lng kulay. Nka pabilog sa screen ang 3 kulay. Panu kya para mbalik i2 sa dati?
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Post by Hertz Wed Nov 22, 2017 9:44 pm

baka sobrang lapit o malayo ang placement ng yoke

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Post by geof79 Wed Nov 22, 2017 11:42 pm

Wla naman ak0ng binago dun sir hertz. Pg kbit ko ng board ok nman pg power. Pero nun e off taz pg power umiba na ang kulay. Kumalat at nghwahwalay ang kulay taz mejo dumilim pg nka channel.
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Post by geof79 Fri Nov 24, 2017 9:07 am

Ask ko nrin kung panu ba gmitin ang degauser? Pwde ba mag sarili nlang gawa nun? Posistor ba gngamit o bulb lng? 2 klase kc un nsearch ko sa google.
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Post by Hertz Fri Nov 24, 2017 11:06 pm


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Post by geof79 Fri Nov 24, 2017 11:54 pm

Tnx d2 sir hertz.
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Post by triac Wed Nov 29, 2017 5:11 pm

basa lng po mga sis..
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Post by Electro Sat Dec 02, 2017 9:24 pm

baka may malapit na speaker master
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Post by alvinquimbo Sun Dec 03, 2017 10:16 pm

congrats sis..kapehan nanaman..
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Post by ultrasonic™ Thu Dec 14, 2017 10:58 pm

Oy ok na pala Sis.. congratz

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