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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, LA9241ML
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Pin Name FIN2 FIN1 E F TB TETE TESI SCI TH TA TDTD JP TO FD FDFA FAFE FEAGND SP SPI SPG SPSPD SLEQ SLD SLI SL+ JPI JP+ TGL TOFF TES I I O Tracking gain control signal input from the DSP. Low gain when TGL is "H". Tracking off control signal input from the DSP. Off when TOFF is "H". Outputs the TES signal to the DSP. Tracking signal input from the DSP. Sled feed signal input from the microprocessor. I/O O signal and subtraction from it create an EF signal. O O signal. O I O O I I I O I I I O O I O I O I and the TE pin. O O I I I O I O Ground of analog signals. Single-ended output of the signals input to the CV+ and CV- pins. Spindle amp input. For the connection of a resistor which sets the gain in the spindle 12cm mode. For the connection of the spindle phase compensation constant with the SPD pin. Spindle control signal output. For the connection of sled phase compensation constant. Sled control signal output. For the connection of the pickup photodiode. Inputs the DC components in the TE signal. For the connection of a resistor which sets the gain of the TE signal between this pin and the TE pin. TE signal output. TES (track error sense) comparator input. The signal is passed through a BPF. Shock detection input. Sets the time constant for the tracking gain. TA amp output. Composes the tracking phase compensation constant between the TD and VR pins. Sets the tracking phase compensation. Sets the amplitude of the tracking jump signal (kick pulses). Tracking control signal output. Focusing control signal output. Composes the focusing phase compensation constant between the FD and FA pins. Composes the focusing phase compensation constant between the FD and FA pins. Composes the focusing phase compensation constant between the FD and FA pins. FE signal output. For the connection of a resistor whichs sets the gain of the FE signal between this pin For the connection of the pickup photodiode. For the connection of the pickup photodiode. Subtraction from the F pin creates a TE Description For the connection of the pickup photodiode. Addition to the FIN1 pin creates an RF
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