Part ID: Sony IC

[John-Del]

Comes out of Sony SMPS board for a Sony plasma KE-32TS2U. Board ID is
PSE324. Has a shorted 2SK2717, and several .47 ohm surface mount
resistors. Problem is is that there is no drive from the controller
IC which has the markings 3641 on one line, and H2502 on another.
I've run into this problem several time on the same model in the past,
and always ended up replacing the power supply module in those because
I couldn't ID this IC back then. Since this is only a 32", it's not
worth the parts cost to replace in today's market. Any ideas?

 

[Franc Zabkar]

On Fri, 12 Mar 2010 17:50:30 -0800 (PST), John-Del <ohger1s@aol.com>
put finger to keyboard and composed:

Comes out of Sony SMPS board for a Sony plasma KE-32TS2U. Board ID is
PSE324. Has a shorted 2SK2717, and several .47 ohm surface mount
resistors. Problem is is that there is no drive from the controller
IC which has the markings 3641 on one line, and H2502 on another.

FA3641, Fuji Electric, PWM control IC with light load power saving
function For Switching Power Supply Control:

http://www.datasheetarchive.com/pdf-datasheets/Datasheets-12/DSA-231849.pdf

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

 

[John-Del]

On Mar 14, 5:30 pm, Franc Zabkar <fzab...@iinternode.on.net> wrote:

On Fri, 12 Mar 2010 17:50:30 -0800 (PST), John-Del <ohge...@aol.com
put finger to keyboard and composed:

Comes out of Sony SMPS board for a Sony plasma KE-32TS2U.  Board ID is
PSE324.  Has a shorted 2SK2717, and several .47 ohm surface mount
resistors.  Problem is is that there is no drive from the controller
IC which has the markings 3641 on one line, and H2502 on another.

FA3641, Fuji Electric, PWM control IC with light load power saving
function For Switching Power Supply Control:

http://www.datasheetarchive.com/pdf-datasheets/Datasheets-12/DSA-2318...

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Thanks Franc. I did find that datasheet by wildcarding the numbers,
and it' s a possibility. When I get into the shop later today I'll
start with the ground and Vcc to see if they at least match up.
Hopefully it's the one. I have the service manual for this Sony, but
the only board that has no actual schematic is (of course), the power
supply. Thanks again.

John

 

[Franc Zabkar]

On Mon, 15 Mar 2010 08:30:05 +1100, Franc Zabkar
<fzabkar@iinternode.on.net> put finger to keyboard and composed:

FA3641, Fuji Electric, PWM control IC with light load power saving
function For Switching Power Supply Control:

http://www.datasheetarchive.com/pdf-datasheets/Datasheets-12/DSA-231849.pdf

You can buy single quantities here:
http://www.bdent.com/search/part.jsp?partnum=FA3641P

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.