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 10 (click to view)
TROUBLESHOOTING
No Display
1. Check the fuse (FU500) on the digital PCB. 2. Check the fuse (FU100) on the linear PCB. 3. Check the jack (JK500) on the digital PCB. 4. Check the power switch (SW900) on the key PCB. 5. Check the flat cable between the digital and linear PCBs. 6. Check the back light. 7. Check the LCD.
No Display at Record Mode
1. Check the camera unit.
Defect of the Camera Unit
The camera unit must be replaced with whole unit when it is defective, because the precise adjustment is required when the individual parts of the camera unit are replaced, and it can be done only at our factory. (Except for replacing the outer case of the camera unit)
