Question about HP 98785A 16" Monitor

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Moniter horigantel output transister open agan

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Re: moniter

Ok if again and again .ur horizontal out put transister open .then take step
firstly check all capiciter connected through Horigental yoke coil.
then chek Voltage of H/O/Tr C B E (C=50to 80 )(B =logic 0r -5v) (E =0 ) If all voltage is ok Then Change ur EHT.

Posted on Dec 29, 2007

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Transister C5386 equivalent

C5386 is a High Votage Colour Display Horizintal deflectin Output transistor by Fairchild. You can use C5296, C5148, MP4768, C5297,C12007,C4106,C5404T2062 etc. But if present transistor has damaged, check the LOT before replacing an other. OK.

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When I hook up my moniter it does not work like other moniters.

ok sounds like you have a broken pin on your cable if you look in the end of the cable plug the part thet goes into the box but also check both ends if they are there
failing that take monitor to roof and heave ho away it goes

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My computer shutdown and im using a emachine e17t6w tft lcd flat

Dear sir,

Moniter Modale No E700,

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Becouse power on that puse shout way to andstrading the prablem, please solve prablem

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On your CRT back PCB thers three transistor on for red green and blue its possible that your blue transister is faulty. Try moving your cable see if the colour changes it can also be a faulty 15pin plug
Have a nice day

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You would have got a CD with this moniter..
we ahve install that cd..
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1 Answer

Moniter problem

first thing it is not necessary to replace eht when there is no raster.

  • you please go as per procedure.
  • check output from power supply
  • if is ok check horizontal section
  • if it is ok or eht ok then check for heater glowing
  • check video output supply & print open
  • check g2 voltage on crt base.
  • check crt base for loose.
  • check for signal coming to video output ckt.
  • for ckt you can refer modern color monitor ckts volume 1&2.
  • available in india.
  • hope this will help.
  • good luck
  • be in contact with me unless it is rectified.


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take the monitor to a mates house and test it out their, then post here the outcome and i will go into loads of deatil. good luck.

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