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There are currently no product reviews.
 ;
I do not have very much to say.
The price is quite covenient, delivery was better as promised (about 12 ours, against the specified 24 hours if I remember well), and the quality of the PDF is more than acceptable.
The Service Manual of Sansui R30 itself is also satisfactory: good graphic for schematics and layouts, simple and well structured.
Giovanni Bianchi
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Happy to find finally a schematic for this amplifier. The schematic is of good quality, the pcb layout is useless: all is black. Never the less, it is very easy to find the components on the board using the schematics.
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Hard to find manual was ready the next day. Scans were very legible (including schematics). All the essential parts of the service manual were present (adjustment procedure, schematics, and parts list). It would have been nice if the rest of the manual was included (disassembly procedure, theory of operation, etc.).
 ;
The Service Manual for the Kenwood KR-V55R provided by owner-manuals.com was as described/advertised. The contents provided the necessary information to effect a diagnosis of the unit. The schematics above all else was instrumental in tracing the the signal flow from component to component.
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This manual was the factory original. Excellent value and contained all the details I needed. Easy dowwnload provided the information when I needed it.
AV-25PX
PURITY, CONVERGENCE ADJUSTMENT
PURITY ADJUSTMENT
1. Demagnetize CRT with the demagnetizer.
WEDGE DYNAMIC CONVERGENCE ADJUSTMENT
2. Loosen the retainer screw of the deflection yoke.
PURITY MAGNET(P)
3. Remove the wedges.
CRT
4. Input a green raster signal from the signal generator, and turn the screen to green raster. 46
CRT SOCKET PWB
5. Move the deflection yoke backward.
DEF. YOKE
P / C MAGNETS
6. Bring the long lug of the purity magnets on the short lug and position them horizontally. (Fig.2)
P/C MAGNETS P : PURITY MAGNET 4 : 4 POLES (convergence magnets) 6 : 6 POLES (convergence magnets) Fig.1
7. Adjust the gap between two lugs so that the GREEN RASTER will come into the center of the screen. (Fig.3)
8. Move the deflection yoke forward, and fix the position of the deflection yoke so that the whole screen will become green.
PURITY MAGNETS
9. Insert the wedge to the top side of the deflection yoke so that it will not move.
10. Input a crosshatch signal.
Short lug
11. Verify that the screen is horizontal.
Long lug
12. Input red and blue raster signals, and make sure that purity is properly adjusted.
Bring the long lug over the short lug and position them horizontally.
Fig.2
(FRONT VIEW)
GREEN RASTER
CENTER
Fig.3
30
No.51752
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