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There are currently no product reviews.
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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.
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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.
KSC-32
FLOW CHART
About voltage write down, Li-ion & Ni-MH is S terminal voltage. Ni-Cd is not equal B+1 voltage. Ni-Cd = (B+1 voltage) � Vf Therefore Ni-Cd voltage must consider Vf of protected reverse connection diode.
START Does T,S contact? No
Yes Power out (57mA, 4S) to return protection circuit inside Li-ion Distinguish battery Li-ion
Distinguish battery Ni-Cd or Ni-MH T < 0°C or T > 40°C Temperature check 0°C < T < 40°C 0°C < T < 40°C Below6.6V Above 6.6V
Ni-Cd or Ni-MH
Stand-by temperature LED : Red
Above 11.3V
Above 8.55V or Below 0.5V
Stand-by temperature LED : Red
T < 0°C or T > 40°C Temperature check 0°C < T < 40°C
0°C < T < 40°C Below 5.5V Passage 90min. or Below 0.5V Above 5.5V Low voltage battey charge : 170mA 90 min. timer start LED : Red Error battery timer stop LED : Red flash Go to START when T contact is off. Above 5.5V 90 min. timer stop Rapid charger 1350mA Above 8.55V or Below 5.5V 180 min. timer start LED : Red Charge current is 100mA±20mA or passage 180 min. Detected full charge Finish charge timer stop LED : Green
Low voltage battey charge : 57mA Above 6.6V 20 min. timer stop Rapid charger 1350mA Ni-Cd 1000mA Ni-MH Voltage range of ��V detected 7.8~10.8V 90 min. timer start Ni-Cd 180 min. timer start Ni-MH LED : Red Detected ��V or Above 10.5V (Ni-Cd) or Above 10.8V (Ni-MH) or Passage 90 min. (Ni-Cd) or Passage 180 min. (Ni-MH) Detected full chatge 90 min. timer stop (Ni-Cd) 180 min. timer stop (Ni-MH) LED Green Ni-Cd Ni-MH 20 min. timer start LED : Red
Passage 20 min.
Below 6.6V
Below 7.8V when Rapid charge start passage 10 min.
Above 8.55V or Below 5.5V
Above 11.3V or Trickle charge : 57mA Below 6.6V 10 hour timer start LED : Green 10 hour passage Trickle charge : Ave. 5mA pulse 10 hour timer start LED : Green Finish charge 10 hour timer stop LED : Green 10 hour passage Above 11.3V or Below 6.6V
Above 11.3V or Below 6.6V
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