IC2 I found that IC2 for the back light is bad. I can not find a part number for cross refernce, any ideas?

http://www.oxygensensor-crossreference.com/convert/denso/234-4173

The HP Pavilion 505n desktop has a 845GL series board in it, with a : Intel Celeron 2.2GHz

• 400MHz Front side bus
• Socket mPGA478

You need to look at the actual board model number is and cross refernce it on the list of boards, listed to the right od the 845 column on this link: http://www.intel.com/support/motherboards/desktop/sb/CS-023522.htm

Click on this link or copy and paste the complete link into your browser.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe


I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

You can purchase a complete unit from Grainger for about $210.00. Their part number is 6UZP8. And in most cases they are located locally, so you can pick it up and be back in business quick. The pump is actually manufactured by Excell Power, so my thought would be replace the pump and then try to find a rebuild kit for the bad pump and try to rebuild it as a backup. Hope this helps.

http://www.grainger.com/Grainger/EXCELL-Assembly-Pump-6UZP8

most likely a overheating problem. even though you havent stated your laptop model number

cross refernce it with hp website and they might be offering extended warrnty on your mode of laptop

if the fans come on HIGH immediately, the main board is bad. the lamp could also be bad,check the cables on the lamp to make sure they aren't melted.

The last time I fixed a problem like this it was a bad connection on the back of the instrument cluster. I found it by working in my garage in the dark. I removed the cluster and wiggled wires with the lights turned on, until I found the trouble spot. I then took a pencil eraser to connections in the area, then cleaned it with alcohol. Put it back together and all was well again. best of luck!

Took back off, removed control board and inspected for bad solder joints. found no obvious problem. Cleaned and reinstalled. Working ok now. I'm crossing my fingers.

Well, I will tell you Jim that plasma flat screens as a whole are having similar problems without regard to brand or model. Part of this problem with others has been the poor quiet fan cooling setup they have in them to say the least. The problem you have experienced is in the voltage regulator section of your power supply. Without being able to see exactly the section the IC2 is in I would have to look at a good schematic to find the right part # for. However, through my experience oveer the years I usually go ahead and desolder the part and take it to a large electronic supply house and they are usually more often than not able to identify the component for you without a schematic. However as you said and you are correct in thinking that the plasma tv you have may give you a similar problem in the future without any added cooling fans on the back cover. Do not be deceived though because LCDs over 32" and above suffer similar problems with the added one that they have images that actually burn-in to the screen much like computer monitors and that is annoying as well. Even if your tv is more than 2 years old and past the warranty period, you may be successful in getting it replaced with a new one because you have a very common problem occuring here that I know the manufacturer knows about. Most plasmas are rate to have 60,000 hours of use which is 20 years, they just have not developed or been around long enough to substantiate that claim. Good luck and God bless.

GE Customer Service is here. They can tell you if they have a comparable "drop-in" replacement.

You can usually find helpful exploded view diagrams and order parts & accessories by entering your full model number here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Hi rem_fishing ,

Would seem that your Audio IC is busted. No receive audio, no TX audio. This would be IC2, KIA7217AP

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

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