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 18 (click to view)
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[19] Deck Pedestal [20] Front Bracket R
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Fig. D9
3. How to Eject Manually
Note: When rotating the gear, be careful not to damage the gear. 1. Remove the Top Cover. 2. Rotate the gear in the direction of the arrow manually as shown below until the tray descends. 3. Pull the tray out manually and remove a disc.