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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.).
 ;
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.
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2. SERIAL DOWNLOAD
[Purposes]
A
1. When the main board is replaced, the firmware versions for the system control computer, drive, and the TUFL microcomputer do not match, and operations of the unit may be destabilized. In such a case, the versions for the above three must be matched. 2. This method is used when disc downloading fails.
[Tools to be used]
� PC with serial port � RS-232C cross cable � RS-232C I/F jig (GGF1348) � 7P FFC (VDA1681) � Download program (Image Updater) (*) � Firmware (*) This program must be installed in advance.
[Connection]
Connect as follows:
PC
RS-232C cable
RS-232C I/F
7P FFC
This unit
B
[Install Procedures of the Download Program]
1 Expand the compressed data of SLoader zip. 2 The folder of Image Tools is created, and then double-click on Setup. Exe of that file.
C
3 When the selection screen of the driver is appeared, search from C drive as the driver is installed by default for windows 2000/XP.) 4 When the installation is finished, confirm that the Image Updater can select as [start] [Program] [EMMA2RL Turnkey Image Tools] [Image Updater].
[Download Procedures]
1 Connect the 232C I/F jigs above way.
D
2 Connect the FFC cable of the download jig to CN1402 of MAIN ASSY and the power cable to the unit. 3 Turn on the PC and set the communication baud rate of 232C to 115, 200 bps. 4 Initiate the Image Updater by selecting [Start] [Program] [EMMA2RL Turnkey Image Tools]
[Image Updater].
5 When the Image updater is initiated, select the port to the connecting port (COM1, etc). 6 Click [���] of the "Main Board" line on the extream right, and select the download program "DVR_231M.***file".
E
7 After selecting the download program, push the "Start" button. 8 When the status screen is displayed, turn the DVD recorder on. The writing of the firmware begins. (It's takes about 5 minutes for updating the firmware.) 9 After finishing the update, push "OK" button, and then finish the Image Updater by pushing "Stop" button. 0 Unplug the power cable first, and then the FFC cable. (Be sure tp keep this order.)
F
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DVR-231-S
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