hi , i have a power supply of epson eb-x41 projector that doesn't turn on . i haven't found the problem yet but in the power supply circuit it has 2 ics that i couldn't find any datasheet or just a little data about them, i think they should be switching ics but it's so strange for me why there is no data about them?!

 

Hello,

This is the third forum you are asking.

It can well be that the chips are OEM products.
The numbers will be inhouse coded and can not be found on the internet.

Bertus

 

ok, thanks, each forum has it's own members with different knowledges

 

Hello,

Perhaps they know more at the badcaps forum:

Badcaps - Explore our electronics repair forums - Badcaps

Badcaps Capacitor Search Engine & Electronics Repair Forum

www.badcaps.net

They have a special section for video sources:
Troubleshooting TVs and Video Sources

Technical questions about your defective television, projection screen, LCD/plasma, or any other type of video device. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!

Bertus

 

Hello,

Perhaps they know more at the badcaps forum:

Badcaps - Explore our electronics repair forums - Badcaps

Badcaps Capacitor Search Engine & Electronics Repair Forum

www.badcaps.net

They have a special section for video sources:
Troubleshooting TVs and Video Sources

Technical questions about your defective television, projection screen, LCD/plasma, or any other type of video device. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!

Bertus

ok and thanks for your reply, one said Those ICs are FA8A01 and FA5612 , the second part numbers and on the ICs not the first ones

 

Hello,

I found this : PWM Power: FA8A01

REPAIR / SERVICING TV AIWA 40LE7120S

Service Modes,Circuit Diagrams,Firmware Update process,Disassemble procedure,Universal remote control codes,Troubleshooting,electronics basics

masterelectronicsrepair.blogspot.com

And this:

FA5612 Datasheet(PDF)

Part #: FA5612. Download. File Size: 726Kbytes. Page: 30 Pages. Description: FUJI Power Supply Control IC. Manufacturer: Fuji Electric.

www.alldatasheet.com

Bertus

 

Hello,

I found this : PWM Power: FA8A01

REPAIR / SERVICING TV AIWA 40LE7120S

Service Modes,Circuit Diagrams,Firmware Update process,Disassemble procedure,Universal remote control codes,Troubleshooting,electronics basics

masterelectronicsrepair.blogspot.com

And this:

FA5612 Datasheet(PDF)

Part #: FA5612. Download. File Size: 726Kbytes. Page: 30 Pages. Description: FUJI Power Supply Control IC. Manufacturer: Fuji Electric.

www.alldatasheet.com

Bertus

thank u, i will check it