Glenn Simpson
Member
Hi folks.
I have a challenge. A Mate has asked me to repair a controller out of a Samsung SE210LC-2, part number 1028-00751(A). They are no longer available, even at wreckers. The PCB has burned up and my task is repairing the board and replacing all the failed components to hopefully bring it back to life. Looks like a massive surge came down the 24V line. It controls the throttle and some hydraulic function as far as I can tell. Local dealers aren't much help. Owner has a service manual, but it doesn't seem to cover this part of the machine. Processor seems to have survived, so should be saveable.
The board takes in 24V and has a pair of wires out that drive the (DC) throttle motor, and P/V (hydraulic control?) I think. Inputs seem to be RPM, AUX, AMP and a bunch of digital inputs such as LU and LD, K0-K4 etc. The machine operates without it, just with manual throttle control. I have found several (lots of) burned bits on the PCB and ordered replacements with a few guesses as to values.
My question is, does anybody have any knowledge on these systems or a schematic maybe that can help me? I want to try to understand what all the inputs and outputs are so I can be as sure as possible I have repaired everything before I give it back to re-install.
Thanks, Glenn.
I have a challenge. A Mate has asked me to repair a controller out of a Samsung SE210LC-2, part number 1028-00751(A). They are no longer available, even at wreckers. The PCB has burned up and my task is repairing the board and replacing all the failed components to hopefully bring it back to life. Looks like a massive surge came down the 24V line. It controls the throttle and some hydraulic function as far as I can tell. Local dealers aren't much help. Owner has a service manual, but it doesn't seem to cover this part of the machine. Processor seems to have survived, so should be saveable.
The board takes in 24V and has a pair of wires out that drive the (DC) throttle motor, and P/V (hydraulic control?) I think. Inputs seem to be RPM, AUX, AMP and a bunch of digital inputs such as LU and LD, K0-K4 etc. The machine operates without it, just with manual throttle control. I have found several (lots of) burned bits on the PCB and ordered replacements with a few guesses as to values.
My question is, does anybody have any knowledge on these systems or a schematic maybe that can help me? I want to try to understand what all the inputs and outputs are so I can be as sure as possible I have repaired everything before I give it back to re-install.
Thanks, Glenn.
