Need a Circuit Schematic for a Lambda Model LS FM 3 Power Supply

Hi Michael
Found this link of a manual for Lambda Power Supplies. This manual provides instructions for the operation of Lambda Power supply models. hope this can help out. you can also find the voltage and amperage(40V/1A) that can be seen on the attached picture.

http://exodus.poly.edu/~kurt/manuals/manuals/...%20423AFM,%20424AFM,%20425AFM%20Operation.pdf

Hi Francis:

Thank you for the link! I listed the wrong model number in the question header because I was modifying an earlier inquiry and neglected to change it (again, my sincere apologies). It is not possible for me to modify the header after submitting the question.

I am looking for a manual for the *Lambda Model LS FM3* regulated power supply and an exhaustive (and exhausting) search was unsuccessful. Further, I contacted the TDK-Lambda technical support staff and they said they did not have the manual or schematic for this old product in their files.

The device I have is not functioning at all and my visual inspection indicated it needs a major repair. But no joy, because I have no manual or schematic for it. I included an example photo of the device in my original message.

Best regards,

Mike

Hi Mike:

Sorry for the link. here's the correct one:

http://exodus.poly.edu/~kurt/manuals/manuals/Other/LAMBDA LPD Series 421AFM, 422AFM, 423AFM, 424AFM, 425AFM Operation.pdf

As for the schematic i found a PDF for schematic on Lambda Models for 0-40 volts regulated power supply. Maybe this can help you about its schematic and circuits.

See attached PDF file.

Have a great day,

Francis

Hi Francis,

Thank you for trying! I searched the link, but it did not have the Lambda LS FM 3 power supply. I will review the schematic you kindly sent to me to see if part of it may apply to this model. This is a tougher challenge than I thought it would be.

Best regards,

Mike

Does anyone have the service manual & circuit schematic for an old Lambda Model LS FM 3 DC regulated power supply?  A search under legacy equipment on the Lambda website plus an extensive web search was unsuccessful.  This is a challenging problem, as I was unable to find either document online or for sale.  Even TDK-Lambda's technical support staff was unable to find them.  There must be a copy of these documents "out there."  Thank you for your help!