Leader LCG-400 manual FOUND
 

Finally got some scans of this manual, directly from Leader. If anyone wants copies, let me know. About 33 megs of b/w .pdfs Operation, calibration, schematics, parts lists, etc.

Includes the multiburst and sweep marker options. Also shows how to convert the RF output from channels 5/6 to 2/3 or 3/4. Appears to be simple cap changes and retuning the oscillator coils. Will try the surgery on mine and make a thread here to document.

Now I can properly tweak in the linearity of the circle pattern, which had been only "eyeballed" on mine after a previous owner twiddled the pots.

Could you possibly upload this manual? Thanks