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08/21/04
Tender plug problem & repair:
If you have issues with intermittent or static sound output from the tender (or intermittent marker light function) and find that wiggling the tender plug when plugged into the back of the engine seems to affect it (better/worse), you likely have an issue with cracked solder around where the pins connect/solder to the PCB.
To repair it, you will need to remove the rear engine set and frame from the engine. Inspect the solder connections on the board (you may need a magnifier) and look for cracks around each pin. If you see any cracks you will need to re-heat/re-melt the solder on each one and maybe add a small bit of solder as well. Put the tip of the soldering iron at the base of the pin against the solder, then apply new solder at the base of the pin where it meets the circuit board. Repeat this step with each pin and be careful not to cross solder the connections and create a short. Use a magnifier to ensure you haven't created any cross connections of solder that can cause shorts as it will damage the engine electronics.
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