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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.
IC DESCRIPTION - 3/9 (M12L16161A-7T)-2/2
Pin No. Pin Name I/O Description This pin determines whether or not the next CLK is valid. If CKE is High, the next CLK rising 34 CKE I edge is valid. If CKE is Low, the next CLK rising edge is invalid. This pin is used for powerdown and clock suspend modes. 35 CLK I CLK is the master clock input to this pin. The other input signals are referred at CLK rising edge. DQM controls input/output buffers. - Read operation: If DQM is High, The output buffer becomes High-Z. If the DQM is Low, the 36 UDQM I output buffer becomes Low-Z. - Write operation: If DQM is High, the previous data is held (the new data is not written). If DQM is Low, the data is written. 37 38 39 40 41 42 43 44 45 46 47 48 49 50 NC VCCQ MD8 MD9 VSSQ MD10 MD11 VCCQ MD12 MD13 VSSQ MD14 MD15 GND � � I/O � I/O � I/O � � I/O Not used 3.3 V is applied. (VCCQ is for the output buffer.) Data is input and ouput from these pins. These pins are the same as those of a conventional DRAM. Ground is connected. (VSSQ is for the output buffer.) Data is input and ouput from these pins. These pins are the same as those of a conventional DRAM. 3.3 V is applied. (VCCQ is for the output buffer.) Data is input and ouput from these pins. These pins are the same as those of a conventional DRAM. Ground is connected. (VSSQ is for the output buffer.) Data is input and ouput from these pins. These pins are the same as those of a conventional DRAM. Ground is connected. (VSS is for the internal circuit.)
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