Unable to identify 6-pin IC on dvb-t receiver on dh-ms7828-hdvbt-v0.03 PCB

N

nasliun

New Member

• Aug 21, 2012

• #1

Hello to all experts,
your knowledge is very important to me.
Thank You in advance
View attachment 66556
It is written on the part like AD06A marked with yellow small arrow by me...

 

Last edited: Aug 21, 2012

Nigel Goodwin

Super Moderator

Most Helpful Member

• Aug 21, 2012

• #2

It's often impossible to identify SM components - it might not even be an IC, it's common to have double-transistors and double-FET's that look just like that - you really need the service manual to identify it.

 

N

nasliun

New Member

• Aug 21, 2012

• #3

Dear Nigel,
thank you for Your quick response, I understand that it is not easy to identify this component, I just adding some measurement results that is on my next photo, maybe it is more clear, what does it does, or probably is ir possible to put two small components instead of this one. Thank You in advance. Vilnius. Audrius
View attachment 66557

Measurements are taken from near sittin' good ,not burnt same component...

 

Last edited: Aug 21, 2012

Nigel Goodwin

Super Moderator

Most Helpful Member

• Aug 21, 2012

• #4

Why do you think it's faulty?.

 

N

nasliun

New Member

• Aug 21, 2012

• #5

Yes, another same marking component ,which is near, is burnt visually, and voltages are as follows 0.43/7.93V on top (acc. my photo) and 4.6/0.29 on bootom side( acc. my photo). Thank You very much.

 

Last edited: Aug 21, 2012

N

nasliun

New Member

• Aug 21, 2012

• #6

Probably I found something I need by Your help. Can you prove , please, it can be a good analog
https://www.electro-tech-online.com/custompdfs/2012/08/BC846S.pdf

 

dr pepper

Well-Known Member

Most Helpful Member

• Aug 21, 2012

• #7

Just because a similar part looks the same doesnt mean to say its the same part.
Looking at the surroundings it might be a smps controller or as nige says a double tranny but thats just a wild guess.
You really need service data, even if the part is dead you still dont know the cause.

 

ChrisP58

Well-Known Member

Most Helpful Member

• Aug 21, 2012

• #8

There are probably thousands of different parts that come in that package. Trying to guess which one it might be for this circuit would be a shot in the dark.

If you can't get a manufacturers repair manual or a schematic, the next best thing would be to try to reverse engineer and draw a schematic for the rest of the circuit. Maybe from that, we could make a better guess to what the part might be.