It kinda looks like the 041M03 number is an in-house number used by the
board builder, as compared to the choke/transformer number 387M01.

TDK probably refers to the component manufacturer for the choke/xfmr, and
the 9522 is very likely the year/week date code 1995, week 22.

If the other TO-220 device has a similar series of numbers/letter on it, the
device may not be a voltage regulator.

Finding a cross reference for the 041M03 number is probably going to be a
matter of luck if it is just an in-house number.

You may need to examine the associated components after the output pin to
get an idea of the correct replacement part, if it is a voltage regulator.
The input pin should probably go directly to a 12V source/power terminal if
it's a VR.

There may also be other components which have failed.

You might be able to get some clues as to the input and output voltages from
a factory service manual wiring diagram, usually available for inspection at
a dealership. Some counter guys will even make photocopies.

--
Cheers,
WB
..............


"ghiotom" wrote in message
...
On Dec 13, 2:45 pm, David Hester wrote:
Can you give us more information, eg number of pins, package style,
logo, date codes of other chips on same board, photo, etc.

The number may consist of two parts, a marking code and a date code.

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

TO-220 3 leads. Below 041M03 is R535 with the Motorola symbol. This is
a vehicle information center from a 1996 Jeep.

Here's a pictu
http://i747.photobucket.com/albums/x...91213-1448.jpg