I recently purchased a K-Line Scale Hudson with TMCC. I am using a Cab-1 with a TPC 400 through a TIU with all channels set to fixed. The loco will run in conventional ( with the command base disconnected from the outer rail) and all normal functions such as whistle, bell, directional control, boost, brake and all lighting functioning normally. The smoke unit will not work in conventional. After reconnecting the command base to the outer rails, I tried to run in command control, but loco took off and I had to use emergency stop. I ordered a new R2LC CO8 board from Lionel and installed it but it made no difference. After reinstalling the original R2LC board, I replaced the DCDR driver board with a known good board from a K-Line Mikado which I upgraded with ERR Cruise Commander M. The loco still wants to run away in command mode. I removed the mother board and buzzed out all the pins to check continuity. Every thing seemed good except for 2 pins which had no connections. Pin 15 and Pin 21. According to a post on this forum by Jim Battaglia in January, 2008, he listed a pinout of Lionels R2LC board. Pin 15 is only used in a early -4 version, but Pin 21 is listed as " Master Clear to microprocessor". I have checked the continuity of all cable assemblies in the loco and the jumper to the tender, only to the points where the cable terminates in the tender.
I have occationally got the loco to perform partially in command mode and smoke, rear coupler,whistle, bell will work momentarily, but then quit. I have run out of ideas and hope some of you have some ideas.
Allan O
