I have to replace an outocoupler

[gmr]

hello, I have a monitor samsung syncmaster 400nb , which has an optocoupler burned, the part number of the device is l 9805, I can't find it in the market, so I would like to know what similar optocoupler can I put to replace the last one broken.
I have same models belonged to a network circuit.

 

[shahbazhaider]

DEAR!

although ur problem is very simple...but u not told this autocopler's full detail...i need its pin description...and ur not told its full no...please write me back @
micro662705@hotmail.com

truly,
Shahbaz

 

[mooimooi]

Hi GMR,
The part number you gave looks like the manufacturing date code of the coupler. You need to get the part number, which
goes like IL1 , 4n25, ILXX . Maybe the board uses more than
one coupler of the same make; in that case you get part number. The part numbers I have listed above are of Siemens orgin, but I think your Samsung may use Japanese couplers.
In case your coupler is burnt beyond recognition, ONLY CHOICE left is to go to some junk shops ( I mean computer/electronics flea market ) to look for such models
and obtain the part number. Good Luck,
I am sure you will survive this...
Joy to you.

 

[nbucska]

If you have more OC-s in the circuit, you can measure
the working one and find one with similar data if not
then trace the connected circuits .
<nbucska@pcperipherals.com>