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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.
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The Service Manual received was helpful. The electronic information is exactly what I needed.
I recomend all of my friends about this technical page.
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High quality scan of service manual. I am satisfied!
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Excellent copies.
I will use "Owner Manual" again a second time.
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Very good manual for Technics SL 303. Manuale molto utile.
S-A4-LR
2. SCHEMATIC DIAGRAM
Red Red L1
4.5mH
Red C1 C2
IN
Black
27µF
27µF
Woofer
White
White
SWN1649 Conductor
Red Clear with White Clear Black
1.1mH L2
L1 C1 3.0mH
47µF
C2
8.2µF
Clear R1
39
Midrange
Clear with White Clear
SWN1669
C3
3.9µF
L3
0.27mH
Tweeter
Clear with White
3. PRECAUTION OF REASSEMBLY AND DISASSEMBLY
3.1 Grille
The grille is fixed to the cabinet with catches, and it can be removed by pulling it toward you. When reinstalling, orient the grille with the badge at the bottom.
[Packing for the tweeter connecting cords]
3.2 Woofer
The woofer is attached to the baffle board from the outside with 6 screws. To remove the woofer, remove the grille first and remove the screws. To reinstall the woofer, place it so that its terminal board faces upward.
Packing SEC1495
Mid/Tw
3.3 Midrange and Tweeter
The midrange and tweeter are integrated into a coaxial unit, and the coaxial unit is attached to the baffle board from the outside with 4 screws. To remove this coaxial unit, remove the grille first and remove these screws. Then remove the packing covering the cord connections of the tweeter. When reinstalling the coaxial unit, place the midrange so that its terminal board faces downward. After reconnecting the tweeter cords, cover the cord connections by using packing (two SEC1495) to avoid short-circuiting, as illustrated at right.
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