DVD Power Supply Repair TNY263P

Hi,

Anyone can share how to identify a burnt surface ic chip on a power supply board of dvd dvd player? I couldn't find the details.

Hi Nick,

Chips can go bad with no external indications. In this case the damage must be located by looking at voltage readings and how the chip functions. Occasionally the chip will show some outward damage like a discoloration or a burn. Sometimes the outer case will crack and the visual crack is an indicator. In extreme cases the top of the chip will be blown off by the failure.

Good Luck

John

Thank u for responding, i did recognized which ic chip was damaged but disfigured on surface till can't sight the part number or reference from it. I need to know how to find out which type of ic chip to buy for replacement. I can't post a pic here?

Hi Nick,

You can insert inline photos in the original discussion post, or in any comment, see here in the section 'Show me the editor tools' to see how to do this : How to Ask Questions using the Create Discussion tool

Most ICs look the same, so if there is no part number on it, it can be a guess (sometimes easier if it is a popular chip), otherwise there may be a reference diagram and parts list if you can find the service manual.

The service manual is normally not provided publicly, so it's just luck if you can find it via google, otherwise a service center may have access to that.

You might get lucky if it is the power supply board, if the part is well-known (but it might not be - you'll have to post a photo of that part of the board).

I think it may not be related to the topic of the title of the discussion? If it is not, maybe it's better to create a new discussion to avoid confusion, because I thought the photo in the discussion was what you were referring to..

That web page link above explains how to create a new discussion.

Hi Nick,

You can insert inline photos in the original discussion post, or in any comment, see here in the section 'Show me the editor tools' to see how to do this : How to Ask Questions using the Create Discussion tool

Most ICs look the same, so if there is no part number on it, it can be a guess (sometimes easier if it is a popular chip), otherwise there may be a reference diagram and parts list if you can find the service manual.

The service manual is normally not provided publicly, so it's just luck if you can find it via google, otherwise a service center may have access to that.

You might get lucky if it is the power supply board, if the part is well-known (but it might not be - you'll have to post a photo of that part of the board).

I think it may not be related to the topic of the title of the discussion? If it is not, maybe it's better to create a new discussion to avoid confusion, because I thought the photo in the discussion was what you were referring to..

That web page link above explains how to create a new discussion.

Yes it's the power supply board in the dvd player, I created another topic with pic loaded.

Identify a burnt & disfigured IC chip on power board of DVD player