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Author Topic: SONY KV-19APR3  (Read 2424 times)

Offline voltaman_krc

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SONY KV-19APR3
« on: August 19, 2009, 08:31:23 PM »
tanong ko lang po kung ano problem ng television if biglang ngblublurred at nngiging black ang display nito na halos wala ng makita, tpos po ay mya-mya ay ok na ulit. then mga hours na nakalipas na naka-on pa rin ang tv ay gnon ulit ang mangyyari..mgblublurred at dark display.
salamt po in advance.  :) :) :) :)
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SONY KV-19APR3
« on: August 19, 2009, 08:31:23 PM »

Offline sEPh

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Re: SONY KV-19APR3
« Reply #1 on: August 19, 2009, 08:46:35 PM »
cold solder...try to resolder :o :o :
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Re: SONY KV-19APR3
« Reply #1 on: August 19, 2009, 08:46:35 PM »

Offline thorshz

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Re: SONY KV-19APR3
« Reply #2 on: August 24, 2009, 08:32:44 PM »
try to check cold soldered @ CRT board area and around Flyback
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Re: SONY KV-19APR3
« Reply #2 on: August 24, 2009, 08:32:44 PM »

Offline voltaman_krc

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Re: SONY KV-19APR3
« Reply #3 on: December 24, 2009, 01:40:11 AM »
^ update ko lang. any suggestions how to fix it? TIA. :D
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Re: SONY KV-19APR3
« Reply #3 on: December 24, 2009, 01:40:11 AM »

Offline GuDo

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Re: SONY KV-19APR3
« Reply #4 on: April 12, 2010, 07:36:19 PM »
check mo G2 mo, then yung CRT socket mo baka maluwag na.. concentrate ka lang sa C board..
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Re: SONY KV-19APR3
« Reply #4 on: April 12, 2010, 07:36:19 PM »

Offline ultrasonic™

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Re: SONY KV-19APR3
« Reply #5 on: April 13, 2010, 04:18:37 PM »
share ko lang sa ganitong modelo:

kong ang buong 1KV ang absences full scanning line ang effect

kong 200V  naman ang mawala  hndi  maganda ang RGB output
it can cause ng pabago bago ng kulay
defende na rin sa scenario

on topic :

check also for the ABL  circuit baka  palyado
(check for the 22uf/160V)

check for the C board for loose contact
check baka may change value resistor lalo na ang biasing for the transistor RGB driver

priority check mu din ang CPT socket baka masxado ng corroded..
check also for the screen trim.. baka super rusty na

hope makatulong  ;)
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Offline Tasyo

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Re: SONY KV-19APR3
« Reply #6 on: April 13, 2010, 10:41:47 PM »
Quote from: ultrasonic™ on April 13, 2010, 04:18:37 PM
kong ang buong 1KV ang absences full scanning line ang effect
Mostly Kuya pag nawala yung 1000 Volts or nag open yang 1.8K lalabas na dark screen, kasi walang bias yung G2 mo. lumalabas mostly yung retrace pag meron open loop to ground yung 1000Volts
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Offline lhan

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Re: SONY KV-19APR3
« Reply #7 on: April 13, 2010, 11:19:26 PM »
Quote from: voltaman_krc on August 19, 2009, 08:31:23 PM
tanong ko lang po kung ano problem ng television if biglang ngblublurred at nngiging black ang display nito na halos wala ng makita, tpos po ay mya-mya ay ok na ulit. then mga hours na nakalipas na naka-on pa rin ang tv ay gnon ulit ang mangyyari..mgblublurred at dark display.
salamt po in advance.  :) :) :) :)
chekck mo filament kuya bka los con, silip mo fil  pag black display kung nk ilaw ;D
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Offline lhan

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Re: SONY KV-19APR3
« Reply #8 on: April 13, 2010, 11:25:20 PM »
check mo filament kuya, bk loscon lng,
silip mo fil kung nk ala ilaw pag black display
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Offline MX45

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Re: SONY KV-19APR3
« Reply #9 on: April 14, 2010, 05:53:22 PM »
subscribing...
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Offline ultrasonic™

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Re: SONY KV-19APR3
« Reply #10 on: April 15, 2010, 04:55:48 PM »
Quote from: Tasyo on April 13, 2010, 10:41:47 PM
Mostly Kuya pag nawala yung 1000 Volts or nag open yang 1.8K lalabas na dark screen, kasi walang bias yung G2 mo. lumalabas mostly yung retrace pag meron open loop to ground yung 1000Volts

ahhh... ganun  pala  yun
tnx  boss tasyo for correcting proper technical term
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Offline GuDo

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Re: SONY KV-19APR3
« Reply #11 on: April 18, 2010, 03:11:19 AM »
kasi ang 1000V ang panggagalingan ng boltahe ng G2 ehh, kaya pag nawala yun, mostly dark na ang screen..
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Offline SexyPaint

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Re: SONY KV-19APR3
« Reply #12 on: May 22, 2010, 04:23:55 PM »
updating...
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Offline GuDo

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Re: SONY KV-19APR3
« Reply #13 on: May 25, 2010, 01:52:34 PM »
madami akong matututunan dito.. hehe.. minsan daw sa a board my open na 200 ohm resistor..
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Offline SexyPaint

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Re: SONY KV-19APR3
« Reply #14 on: May 25, 2010, 05:41:35 PM »
Quote from: GuDo on May 25, 2010, 01:52:34 PM
madami akong matututunan dito.. hehe.. minsan daw sa a board my open na 200 ohm resistor..

anong location po ng 200 ohms??
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Offline GuDo

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Re: SONY KV-19APR3
« Reply #15 on: June 02, 2010, 11:20:18 AM »
Sa A-board lang yun ehh.. malapit sa flyback..
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Offline enriz622

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Re: SONY KV-19APR3
« Reply #16 on: June 02, 2010, 12:17:47 PM »
sa ts check nyo po ang crt socket,baka marumi or kailangan ng palitan
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Offline GuDo

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Re: SONY KV-19APR3
« Reply #17 on: June 02, 2010, 02:41:33 PM »
sad to say nakalimutan na ni TS ang kanyang post..
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Offline SexyPaint

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Re: SONY KV-19APR3
« Reply #18 on: June 02, 2010, 04:03:41 PM »
oo nga (sabi ng kalabaw) hehe...
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Offline enriz622

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Re: SONY KV-19APR3
« Reply #19 on: June 02, 2010, 08:29:41 PM »
sabi nga, nautusan lang bumili ng suka naligaw lang :)
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Re: SONY KV-19APR3
« Reply #19 on: June 02, 2010, 08:29:41 PM »
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