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thank u so much for this manual that was so cheap that i thought it was a scam but i gambled anyway because it was too good of a deal to pass up and behold,the manual has everything and details of everything even the screws and im still amazed and very happy with my manual .so take my word and jump on it before they realize how cheap they selling thier manuals..thank you so much for taking time to read my thoughts
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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.).
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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.
4-1-3. Video Tracking Check and Adjustment
(4) Turn the height adjustment nut of TG-3 counterclockwise by one to two turns so that the tape does not in contact with the upper flange of TG-3. (5) Turn the height adjustment nut of TG-4 clockwise so that the tape does not in contact with the lower flange of TG-4. (6) Turn the zenith adjustment screw of the AT head so that the right portion of the RF envelope waveform makes 50% to 100% of the maximum output level. (Fig. 1) At this time, check that the tape does not in contact with both upper flange of TG-3 and lower flange of TG-4. If the tape contacts either flange, repeat step (4) or (5). If the tape moves upward or downward following the guide flange movement, perform the following adjustment. This trouble cause is uneven tape tension at upside or downside of the tape caused by AT head zenith. . If the tape moves upward at TG-3: Turn the zenith adjustment screw counterclockwise. . If the tape moves downward at TG-4: Turn the zenith adjustment screw clockwise. (7) Turn the height adjustment nut of TG-3 so that the tape is in contacts with the upper flange and the RF envelope waveform becomes flat. (Fig. 2) At this time, the tape does not in contact with the lower flange of TG-4. If the waveform does not become flat, perform the check and adjustment below. 1 Clean the drum lead with a bamboo stick. (Refer to Section 5-2-4 of the maintenance manual part 1.) 2 Press down the tape by bamboo stick very lightly and check that the tape is running without aparting from the drum lead. 3 If the waveform does not become flat even though steps 1 and 2 mentioned above are performed, adjust the height of TG-3 so that the RF envelope waveform is nearly flat within the range of the specification 12 shown in the Fig.3. At this time, do not overpress the tape at TG-3. � Continued on the next page. �
Marker
TG-4
AT head
TG-3
. Alignment tape : SR2-1/SR2-1P (00:00 to 15:00)
AT head
Zenith adjustment screw
. Alignment tape : SR2-1/SR2-1P (00:00 to 15:00) (Tracking VR : Effective) : D112/SS-83 board lights up <Fig. 1> RF max
80%
50% ~100% Marker
<Fig. 2> Be flat If the pressure against the tape at TG-3 is too much, the waveform becomes as shown in the right figure. (NG)
4-24
DNW-A65/A65P
 $4.99 DNW-A65 SONY
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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