For instructions and pictures on dissassembly of the Genesis, and speaker installation, please refer to a previous thread posted here: http://www.mylargescale.com/Community/Forums/tabid/56/aff/35/aft/112463/afv/topic/Default.aspx In the previous thread, a 10-pin plug was used to connect the LGB PCB to a QSI Magnum PnP adaptor.
In this thread, the LGB PCB is removed. Motors, track pickups, and lighting are wired directly to the QSI Magnum board using connecting plugs. Extra care was taken to keep all original LGB plugs that connected to the PCB intact in case I ever want to re-install the PCB.
The smoke unit bulkhead was moved to the rear of the original LGB PCB seen here. The Speaker is installed. The LGB motor/pickup, and lighting connections can be seen in this picture. The LGB PCB is then removed.
A 4-pin JST plug from AllElectronics was modified to connect to the original two LGB motor plugs.
A multimeter was used to determine the left and right track pickups and motor feeds. The JSTs were connected to the LGB plugs. The wire tie shown just holds the two sets of plugs together. The Track and motor outgoing wires from the JSTs were connected in parallel from the front and rear trucks as shown in the picture.
The LBG lighting boards were traced/tested to determine what pins in the their plugs served which function.
I decided to wire the front mumber boards/dash lights separately rather than plug them into the front light board. The biggest difficulty for me was finally realizing that LGB uses the positive [+] wires for the common rather than the negative [-]. Here is a wiring schematic I developed for this job. The five rectangangles at the top with dots represent the ends of the LGB plugs attached to the boards.
View of front light board w/ connecting 2mm plug and 1K resistors soldered in series.
The headlights, ditch lights, and rear red lights were all connected with white wires. The front red lights, and reverse lights were connected with yellow wires. Green wires were used for the cab, dash, and number lights which stay on all the time power is supplied. Red wires were used for all positives.
The incandescent 5v cab light was replaced with a 3mm warm white LED Christmas light and lens. A 1k resistor was connected in series.
View of LGB rear lights board w/ connecting plugs and 1k resistors before shrink tubing was placed.
A power distribution block was fashoned to connect all of the yellows, greens, whites, and reds, so that only one wire of each color would go forward to connect to the Magnum board.
A second power distribution block was made to connect the battery input plugs for either direct or series battery packs.
A DPDT center off switch was wired to connect either the battery inputs, or the track power inputs. The red center output post wire is routed to a 10A automotive fuse mounted on two female blade connectors. From the fuse, the red power feed goes to the track [+] terminal of the QSI Magnum board. The center pole black wire goes directly to the Magnum track [-] terminal. Motor leads from the modified JST 4-pin plug were connected, first making sure of direction orentation [used a 12v battery to test]. Red, green, yellow, and white lighting wires were connected per QSI instructions. Volume and antenna disconnect switches for the QSI/G-wire were mounted to the bulkhead which had been moved back in the chasis.
By moving the smoke mount bulkhead rearward, there is adequate space for even a large sub-C 19.2v NIMH battery pack inside the Genesis.
With this install, it is possible to run the Genesis with battery RC, track RC, track DC, or DCC. The lights function in prototypical form with RC or DCC.
I am very pleased with the results.
JimC.
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