Good scan of the original service manual. All schematics and adjustment procedures are there. It helped me to fix a long lasting problem with the tracking circuitry. The manual also includes the supplementals 1,2 and 3. Included are; electrical schematic's , pcb layout's, mechanical drawing's and exploded views, disassembly manual and maintenance procedures. 236 pages.
Very good manual for Technics SL 303. Manuale molto utile.
Text excerpt from page 7 (click to view)
Safety precautions The components identified by the symbol ! are critical for safety. For continued safety, replace safety critical components only with manufacturer�s recommended parts.