NEED SCHEMATICS OR POWER BOARD 0500-0507-0250

these should help or contact them direct

https://electronics.stackexchange.com/questions/100624/short-circuit-or-disconnect-to-bypass-a-compressor

http://www.kk4ice.com/?p=570

https://www.google.com/search?q=Altec+lansing+atp3+control+board+schematics

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EMERSON LC320EM9 SM Service Manual free download schematics eeprom...

Motherboards have 2 power grids the Northbridge and the Southbridge. You can have power to one and not the other. As far as schematics you would need the serial number on the motherboard to find that

I was wondering if you ever received the board schematics you were looking for? I have an L8-70M and also need them to diagnose a problem with power outages in the display board. Apparently you can purchase the service manual from Beckman, but I was told it costs ~$600.

There are a lot of folks who've had power supply issues with this sub. Typically, the large resistors fail, which takes out the capacitors.

If you know how to read schematics and replace parts, then these might be helpful to you:

Here are the two pages of schematics from KLH. I wrote to their tech department and explicitly asked for permission to share them here.

Here's the lower board, which has the power supply:
KLH ASW 10-120 subwoofer schematic - lower board


Here's the upper board:

KLH ASW 10-120 subwoofer schematic - upper board

There are a lot of folks who've had power supply issues with this sub. Typically, the large resistors fail, which takes out the capacitors.

If you know how to read schematics and replace parts, then these might be helpful to you:

Here are the two pages of schematics from KLH. I wrote to their techdepartment and explicitly asked for permission to share them here.

Here's the lower board, which has the power supply:
KLH ASW 10-120 subwoofer schematic - lower board


Here's the upper board:

KLH ASW 10-120 subwoofer schematic - upper board

you will need the model of the furnace not the part # of the board. is the schematic not in the unit?

Service manual from SAMs does not include a schematic of the power supply board

check the board, maybe is burned , I have the schematics, if you want it, write me to [email protected], only I need the model of the board

no power standby & no sound