Question about Philips Magnavox 27MS343S 27" TV

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Integrated Circuit

Posted on Jun 01, 2008

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Single white line horizontally across the middle of the screen. What does this mean? Model # DS27530

The vertcial output section in your TV is faulty. It may be either to a voltage loss to that section or an IC failure. Normally IC in this section will fail in most of the tVs. Vetical output IC can be located on the main board of your TV, normally screwed on to a metal heatsink to radiate heat from it while working. Locate this IC, and resolder all of its solder terminals by applying a little more solder, wthout making any solder bridge short in between adjecent solder terminals. If ther is any loose soldering, it will be cleared out. If this does not helps you measure the voltage that comes to that IC. If this is also found normal replace the IC. OK.

Aug 04, 2011 | Sanyo DS24205 24" TV

1 Answer

Im not sure if vertical output transistors is the prob, but my tv has picture only in the middle vetically, i change the capacitor and ic, but still it didnt work out, pls help.

Your assumtion is currect. But the vertical output section of this TV has no transistors at all. It is composed of an IC. Check the soldering terminal connection of this IC legs for any loose soldering first. Just resolder all the solder terminals of this IC by applying a little more solder. In most cases this will solve the fault. If not, check all the surrounding electrolytic capacitors to this IC circuit. If found suspected, replace them. Still fault perists, replace the vertical output IC with same type and number.OK.

Aug 03, 2011 | Toshiba 32A50 32" TV

1 Answer

Where is the vertical part of the Sony KV-XJ29M50, or what type of IC in that part?

Vertical output Ic is in the A board itsef. It is an SIL type [Single In Line type] Ic, screwed onto a metal heatsink to radiate heat out of it while working.

Jul 29, 2011 | Sony KV-XJ29M50 29" TV

1 Answer

Stuck on search for channels and I can't access the menu. All I can do is press the channel up button

Replace its Memory IC. This is a common fault to Sany Vizon. Memory IC; otherwise called as system memory, is a small IC, with 8 solder terminals. It can be located very near to the main system IC. Its number is the most important to note. It should be same as the present one, otherwise won't work. If you have some technical skill in electronics, you can do it by youreself. OK.

Jun 20, 2011 | Sanyo HT28745 28" TV

1 Answer

My sonny tv searches but does not store the programe


There is an IC inside it that stores the channels searched by the tuning section of your tV. It is faulty. It is a 8pin Ic, can be located very near to the system control IC. Resolder it out, and replace it with same number. This will resolve your tVs problem. OK.

Feb 02, 2011 | Sony Televison & Video

1 Answer

DeawooTV Model DTC 2975 I want to know about vertical ic number.b,cos i can't fine out the number that ic is burn.


There are two mumbers used in Dawoo tv as vertical IC.
If used is a [9] pin one number is [TDA 8357J].
If used is a [10] pin one, number is [ LA 7848]

Jan 05, 2011 | Daewoo Televison & Video

1 Answer

I can not hear any Audio


the sound IC is bad, that' why you cannot hear any audio from your TV.

You need to change the sound IC to hear audio from your TV again.

Good luck

Mar 05, 2010 | Haier HTF24R21 24" TV

1 Answer

No sound

Hello sgaffar,

This may mean that you audio detector/amplifier IC in the TV was rendered defective by an electrical surge. Now I would check to see if the circuit was getting and sound from the audio detector (which might be in the IC also). After checking to make sure the bias circuits are ok I would suggest replacing the IC.

You will need a schematic, a multimeter, and if possible an oscilloscope to troubleshoot this problem.

I hope this helps,

Thank you,


Aug 16, 2008 | Orion1934 19" TV

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