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Author Topic: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture  (Read 8369 times)

Offline Red Sonjah

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Help sa openyon mo, samsung ckb5237g(d), ckb5237l shaking lumiliit screen at bumabalik sa dati size mabilis pagpalit continously  tapos pagkalipas ng ilang araw wala na picture.

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Offline robbietan

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #1 on: February 05, 2008, 04:27:22 PM »
where is your monitor located? please include your city, area, floor, etc. are you near electrical wires from the utility or the main wires of the building?

monitor jitters (i.e. shaking ang baking) are caused when strong EMF is present in the area. particularly affected are CRT monitors (LCD monitors are immune). I have measured that at 80 milligauss, CRT monitors start to jitter.

the easiest solution is to move your monitor to a place that will not cause its screen to jitter. or you may change the refresh rate of the monitor. the most expensive solution is to replace the monitor with an LCD.
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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #1 on: February 05, 2008, 04:27:22 PM »

Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #2 on: February 05, 2008, 04:52:48 PM »
Code: [Select]
monitor jitters (i.e. shaking ang baking) are caused when strong EMF is present in the area. particularly affected are CRT monitors (LCD monitors are immune). I have measured that at 80 milligauss, CRT monitors start to jitter.
sir ano ang panukat ng milligauss ? para san bayan ?
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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #2 on: February 05, 2008, 04:52:48 PM »

Offline robbietan

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #3 on: February 07, 2008, 08:14:17 AM »
we have a gaussmeter, which measures EMF radiation from electrical sources. this is a low to mid frequency meter since we are only concerned about EMF from power lines.

there are several gausmmeter available, our cost a measly USD$50, methinks. very reliable and some websites say that these meters can detect ghostly apparitions...erf erf erf
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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #3 on: February 07, 2008, 08:14:17 AM »

Offline Red Sonjah

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #4 on: February 07, 2008, 01:29:52 PM »
Thank sir sa post
Wala external interference at all, No picture at on/off button malfanction ay nasolve kona it's a shorted transistor near to big transformer (not the HOT)
  May nakita rin akong burned na resistor sa CRT value of  39 resistance at 10 tolerance pinalitan ko ng the same resistance and 5 tolerance, what happened na-correct nya yung color ng monitor
 Nag SSHAKE parin screen ng monitor gaya ng dati lumiliit all side ng atleast half inches then bumabalik siya sa original size mabilis ang pagpalit kaya parang nagshshake.
mga sign na possible ng shake:
. Wala siya snapping sound na maaring cause ng loss trim magnet o error yoke
. Bad internal connection check konarin
. Video card, cable  or other external interference is check
. Check konarin V-sync1 at H-sync1

Sir send ko sayo service manual if you want thank you





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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #4 on: February 07, 2008, 01:29:52 PM »

Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #5 on: February 07, 2008, 02:11:53 PM »
ang alam ko nyan sa refresh rate yan ng video adapter, try mong mag palit ng refresh rate.
kung sa monitor ang sira malamang bandang power supply yan.

okey send mo ang services manual para mapag aralan din. 
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Offline Red Sonjah

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #6 on: February 08, 2008, 12:05:58 PM »
Techno08 tama ka yung rin una akala ko refresh rate pero wala effect kasi tinanggal ko cable sa video card para mapunta sa no signal connection. at nagshashake parin monitor suspect ko baka sa FBT o around  component sa FBT pero di ako sure posible rin yung IC101, paano ba malalaman if defective na ang IC pasensya na novice pa ako ang alam ko lang itest ngayon ay transistor, capacitor, resistor, diode etc.,. hindi pa kasama IC at transformer, project ko ito bigay ng instructor ko.

salamat
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Offline Red Sonjah

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #7 on: February 08, 2008, 12:11:03 PM »
Techno saan ko pwedi isend service manual wala attachment sa personal message dito?
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Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #8 on: February 08, 2008, 12:19:46 PM »
yung ibang member gumagamit ng Rapidshare web site tapos dun sila nag upload , yung rapidshare location  ng file ini-lilink dito sa forum, di ko pa ito nasusubukan .
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Offline Red Sonjah

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #9 on: February 08, 2008, 12:24:24 PM »
Sa email mo nalang ;)
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Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #10 on: February 08, 2008, 12:33:18 PM »
Sa email mo nalang ;)

mas maganda ang link, kasi may ibang member na maaring magaling sa paggawa ng monitor, isa pa maraming tutulong sayo. Ang alam ko pag nasa forum ka kailangan open sa lahat ng member pagdating sa technical problem. 
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Offline Red Sonjah

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #11 on: February 08, 2008, 01:08:27 PM »
http://www.free-service-manuals.com/Detailed/34404.html     

samsung ckb5237g(d), ckb5237l Please help Thank
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Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #12 on: February 08, 2008, 04:27:42 PM »
ang pwede mo munang gawin, hinangan mo yung paa ng IC , tingnan mo rin yung ibang part ng board baka may biyak na ang mga hinang, check mo rin ang video cable baka kasi may putol na,test mo ang continuity ng mga wire  :) 
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Offline Red Sonjah

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #13 on: February 09, 2008, 12:32:46 PM »
Suspected ko lang IC101 kasi around sa kanya kulay brown na parang uminit ng husto., if possible na sa power supply nga ang problema ano ang mga papalitan base sa service manual nya? pano ko rin ittest ang IC sa pin nya ?

thanx sa patience Techno
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Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #14 on: February 09, 2008, 01:36:57 PM »
Techno08 tama ka yung rin una akala ko refresh rate pero wala effect kasi tinanggal ko cable sa video card para mapunta sa no signal connection. at nagshashake parin monitor suspect ko baka sa FBT o around  component sa FBT pero di ako sure posible rin yung IC101,

Quote
paano ba malalaman if defective na ang IC pasensya na novice pa ako ang alam ko lang itest ngayon ay transistor, capacitor, resistor, diode etc.,. hindi pa kasama IC at transformer, project ko ito bigay ng instructor ko.

salamat
option:
1. compare mo ang voltage base sa voltage na nakalagay sa schematic.
2 test mo ang temperature kung sobrang taas, kung napaso kana malamang sira na yan .
3 test mo ang mga pin kung may shorted (0 ohm). sa pagkaka-alam ko walang specific na pang test sa 
  IC, sa kompanya siguro meron sila, kung babasahin ang datasheet ng IC minsan  nakalagay doon ang paraan ng pagtest kaya kailangan mo ng special instrument(wala akong special instrument ni isa, meron ako finger instrument pag-napaso sira ang IC  ;D ;D )  .         
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Offline Red Sonjah

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #15 on: February 09, 2008, 01:43:58 PM »
palagay ko nga yung ang sira., may nabibili ba nyan sa raon saan particular don mukhang uminit ng husto :)
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Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #16 on: February 09, 2008, 02:05:21 PM »
Suspected ko lang IC101 kasi around sa kanya kulay brown na parang uminit ng husto., if possible na sa power supply nga ang problema ano ang mga papalitan base sa service manual nya? pano ko rin ittest ang IC sa pin nya ?

thanx sa patience Techno

check mo nalang kung nakakapaso na ang init ng IC , sa tingin ko hindi iyan ang sira kasi kung sira yan dapat na magbabago ang kulay ng picture isa pa ,sabi mo , lumiliit ang size ng picture, yun IC101 ay walang kinalaman sa size ng picture tingnan mo to
http://pdf1.alldatasheet.com/datasheet-pdf/view/37131/SAMSUNG/KA2143B.html 
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Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #17 on: February 09, 2008, 02:46:00 PM »
palagay ko nga yung ang sira., may nabibili ba nyan sa raon saan particular don mukhang uminit ng husto :)
pwede ang sinabi mong sira ang IC101, sabi mo umiinit ng husto ang ic, kaya yung supply ic 12V maaring bumababa kaya pwede rin lumiit ang picture. abnormal na ang 12V. try mo ring palitan.   

sa tingin ko ic IC302  ang may sira, pero kung ti-tingnan kung saan nangaling ang 12v na supply,galing ito sa
IC603 na siya ang nagsusuply sa IC101 at IC302,

i_check mo IC603,IC302,IC101     
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Offline Red Sonjah

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #18 on: February 11, 2008, 11:59:12 AM »
Marami salamat techno,. nun inopen ko monitor at hinawakan ko IC 101 ay hindi uminit., bukod sa mga IC ano pa ba possible cause at maari ko icheck salamat uli Techno
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Offline Siramiko

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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #19 on: February 11, 2008, 12:57:00 PM »
paano ba ang sinasabi mong nagshake ?
iyon ba yung parang may ngipin ng lagari sa gilid ng monitor pag lumiliit. tapos yung gitna ng screen parang may maliliit na linya, na hindi mabasa ang character.   
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Re: Tulong ckb5237g(d), ckb5237l Shake screen tapos ngayon wala na picture
« Reply #19 on: February 11, 2008, 12:57:00 PM »

 

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