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 153 (click to view)
31 July 1995
MOVING ORIGINAL SCAN AND BY-PASS FEED TABLE
[B]
[E] [D]
A171D558.img
[A]
[C]
A171D557.img
After the 1st scanner is moved to the scan position (center of the exposure glass), the inverter motor and the belt motor start to feed the original again. At the same time, the sheet-through guide solenoid [A] and the original scale solenoid [B] of the copier main body are energized to move the guide [C] and scale [D] to the sheet-through position. The original is transported onto the guide and the scale ready to be fed out. When an original is placed on the sheet-through table, if the reed switch [E] of the CFF (computer form feed) guide is not actuated (the guide is not in the rear end position), a message is displayed advising the user to set the guide at the rear end position.