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I want a Vertical IC no for ibm 6331-4ce

Where the ic is placed in the monitor board

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5 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

NT-Services
  • 2 Answers

SOURCE: hellop

The only numbers that come up for me are the 4800 as in an A04800 dual MOSFET array whose datasheet can be found here. http://www.aosmd.com/pdfs/datasheet/AO4800B.pdf

Remove the single retaining screw from each of the CCFL tube holders, remove the epoxy from the connectors and then disconnect the tube connectors and remove the 2 CCFL tube holders in plain sight (keeping the tubes themselves contained in the holders) from their places in LCD frame--so you can lay the holders in plain sight, then reconnect the tubes. Observe the tubes during power up...just be careful not to allow metal parts to make contact with other components or anywhere on the trace...if you observe one or more tubes dim or refusing to ingite, swap tube connections to isolate and determine whether the problem is faulty tube or power supply to the tube. If the issue is that no tubes light, check the pins of the BIT3105 Controller on the power supply circuit
43c7d24.jpg
whose datasheet can be found here: http://pdf1.alldatasheet.com/datasheet-pdf/view/78519/ETC/BIT3105.html

you should see similar values to these:

ϑ 7.43V on AVDD and PVDD
6.96V on CMP
1.25V on RTDLY
ϑ 7.4Von NOUT2, NOUT1, POUT1, and POUT2
1.52V on EA
213 Kω on PWMOUT
1.3V on CTPWM
.6V on DIMDC
3.9V on SST
0~.4mVon CLAMP

If you do not have INN voltage, check the the four 25v47µf caps connected to the BIT3105 CCFL controller (top-center of the board) and then the large electrolytic caps 10v1000µf cap (C551), 25v470µf cap (c661). visually check for domed tops or bulged sides. if these all check good, check the rectifier and regulator on the heatsink by the two large caps. then check the rest of teh electrolytic caps as before. continue working back in the circuit until you reach the Main A/C-D/C circuit.

Posted on Oct 28, 2008

chinna_1977
  • 65 Answers

SOURCE: Ibm E54 monitor width problem

1.To replace TIP122 and it's related transisters (A733,C945) tracing TIP122 pins
2.Change Flyback caps
3.Open OSD select ZOOM Option and press 20 sec OPEN SERVICE MODE decrease the Width option &save it
4.Switch off the monitor

IF these solution was usefull pl appreciates rating

Posted on Nov 19, 2008

FixinFax
  • 3085 Answers

SOURCE: tell me the horizontal ic no for ibm model 6331 - 4ce

56z4412t

Posted on Aug 09, 2009

alpug
  • 1961 Answers

SOURCE: vertical booster problem

check the resistor that supplies the vertical ic this must be open the supply of the vertical ic comes from the plyback replace the resistor connecting to it..


pls rate my help

Posted on Jun 14, 2010

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How to solve horizontal lines on a CRT TV monitor and what could be the possible courses for it


Monitor horizontal lines problems usually caused by a defective vertical output/driver ic. A missing supply voltage to the vertical output ic may caused similar faults which is one horizontal line across the display. Dry joints and missing vertical output pulse from vertical oscillator ic also could contribute the same symptom. If you discovered that the protection resistor (usually from 1 to 4.7 ohm) open circuit or burnt, then replacing it won't solve the problem. The resistor burnt or open circuit was due to a short in the vertical output ic. Thus you have to replace the vertical output ic and the burnt resistor together before you switch on the monitor.

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I have horizontal lines in black and white on the whole screen and tv will not turn off manually,the tv is an ilo 42 inch plasma.I only selected IBM because ilo was not listed


The problem is in the vertical section of your TV.Ethier it is loose connection or leaked capacitor or deffective vertical ic.Try to resolder first the vertical section.If did not work replace leaked capacitor around the vertical ic,then check the 12 v dc supply of vertical ic and final ok the rest is good replace vertical ic.

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My compaq monitor just start blinking and now only haft past of the screen is visible. the rest just went black with on bright shining line on the middle of the screen


hi,
Your monitor have problem with vertical deflection section. Can caused by the faulty vertical driver IC and faulty electrolytic capacitor it the vertical section or dry soldering in the pins of the vertical driver IC. When vertical section fails horizontal lines come on the screen. For testing the same you have to open the monitor and remove the main board. you can easily find out the vertical ic. just follow the four wire running from the deflection yoke ( coil on the crt neck) of which two will go to the horizontal section (normally red and blue wire) and two will go to the vertical section ( Normally yellow and green wire). Follow the yellow and green wire which will be connected to one of the socket in the main board. Follow the circuit track in the main board which will lead you to the vertical deflection section. There you can see one ic is fitted on a aluminium heat sink.Take a close watch in soldering of its leads. Dry soldiering can happen in its leads because its a component which will got to a temperature about 75 degree above at its normal working condition. if found any dry-soldering or not just resolder all the pins of that ic. then check the monitor. If problem remains then you have to relapse the ic.While replacing the ic try to relapse all the capacitors in that section. It will prevent from any further damage to the new vertical ic. if you need any more assistance feel free to contact me through fixya

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Vertical booster problem


check the resistor that supplies the vertical ic this must be open the supply of the vertical ic comes from the plyback replace the resistor connecting to it..


pls rate my help

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Vertical suddenly fold over? Vertical IC loosing connection with board. Best solution is to reflux or resolder it. If not damage vertical IC, replace it. That should fix the problem.

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Problem


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IBM E54 Display in Red


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Nov 15, 2007 | IBM E54 (Pearl, White) 15 in.CRT...

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No picture


hello,
this problem accure due to vertical o/p ic is failiur so plz checked it from any hardware engineer or if you changed it. you are welcome. i't mostly 9 pin ic on heat sink. it's mostly located at the horizantal _ vertical coil's wire( 4 wire attached with pcb) are placed.
ok
bye

Aug 30, 2007 | Samsung 21" FLAT CRT COLOR MONITOR

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