Question about Compaq MV 540 15" CRT Monitor

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Color Problem I have 3 nos of Samsung 15" CRT Monitors based on DP14L15L. All EHT (FBT) were burnt out and I've replaced it. The EHT were 'Sampo Made' and I've replaced with the same one but now all the monitors are giving slight color problems like in one red is more in one green is more and so on I've tried interchanging the CRT and the base boards also but all remained same. There is no pot to adjust the color.Some one has suggested me to use 'Samsung's Softjig software, and the Samsung Softjig interface assembly. But it will be a very lengthy procedure.Can you please give me a solution to fix it? REGDS Samkong

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  • Samuel Konger
    Samuel Konger Jun 10, 2008

    That's not a solution @#$%&*

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I think monitor is samtron45bn.
if you have any serial eeprom burner than desold out the eeprom and reprogram the bin file on it, that file is availaible on net.

azadujn@yahoo.co.in

Posted on Aug 29, 2009

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Posted on Jan 02, 2017

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1 Answer

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after 4 or 5 yrs EHT ( transformer that supplies voltage to CRT TUBE - MONITOR TUBE ) becomes weak - then 1 of the indication is ....DISPLAY WON'T COME BUT LED BLINKS........so solution is EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( very much compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching monitor --- this adjustment is very important ) ----------iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com) ----- here EHT's price will be around Rs 250 ( US $ 6 ) & for my customers (in bangalore) i will take another Rs 500 (US $ 11) as service charge......i don't have any idea about EHT ' s price & service charge in your place.........since it is very risky job i suggest to contact monitor service engineer ------- because they are highly experienced & can fix this component very easily....

Apr 06, 2011 | SAMTRON 55V 15" CRT Monitor

1 Answer

When i switched on monitor samsung 55v, the display comes ,with in a second display off,then power led not glowing


after 4 or 5 yrs EHT ( transformer that supplies voltage to CRT TUBE - MONITOR TUBE ) becomes weak - then 1 of the indication is ....monitor just blinks & switch offs .......so solution is EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( very much compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching monitor --- this adjustment is very important ) ----------iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com) ----- here EHT's price will be around Rs 250 ( US $ 6 ) & for my customers (in bangalore) i will take another Rs 500 (US $ 11) as service charge......i don't have any idea about EHT ' s price & service charge in your place.........since it is very risky job i suggest to contact monitor service engineer ------- because they are highly experienced & can fix this component very easily.... SOME TIMES ALONG WITH EHT....A TRANSISTOR ( BIG IN SIZE & FIXED NEAR EHT) ALSO GETS DEFFECTIVE...........SO IT SHOULD BE COMPULSORYLY CHECKED BEFORE REPLACING EHT...

Mar 14, 2011 | SAMTRON 55V 15" CRT Monitor

2 Answers

Samtron 45bn power regular on/off


just replace the FBT FEA830 and check

Feb 11, 2009 | SAMTRON 55V 15" CRT Monitor

1 Answer

After Monitor is ON, A Sound like chi chi coming out.


yes you first check the capacitor in primary filter 150microfarad/400v if faulty then replace it if not then check boost capacitor near eht (big capacitor near yoke connecter)if faulty replace it

Nov 17, 2008 | SAMTRON 55V 15" CRT Monitor

3 Answers

Repair


Good luck finding a replacement FBT; support for CRT monitors is fading fast.
That transformer is probably not the only thing that failed, the horizontal output transistor that drives it is likely bad too.
If you want to repair it, I also recommend you check any bipolar capacitor in that section as it may also have failed.

Aug 24, 2008 | LG Studioworks 563N 15" CRT Monitor

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My monitor is not working sometimes


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Jan 29, 2008 | SAMTRON 55V 15" CRT Monitor

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