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REWRITING OPU PARAMETER
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OPU stands for Optical Pick-up Unit.
When the following parts are replaced, the OPU parameter of the BD mechanism unit, which is written to the FLASH ROM
on MAIN P.C.B., must be rewritten to have proper operation.
BD mechanism unit
MAIN P.C.B.
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Required Tools
Items supplied from Yamaha Corporation
• OPU parameter writing program: Rpower.exe
• USB-UART conversion adaptor kit (Part No. WW867800)
USB-UART conversion adaptor x 1, USB cable (type A to type A) x 1, 4P flexible flat cable x 1 (Not for service)
• Test disc set (Part No. WW867900)
CD-ROM x 1, DVD-ROM DL x 1, BD-ROM SL x 1, BD-R DL x 1, BD-ROM DL x 1 (Not for service)
Items not supplied from Yamaha Corporation
• PC
• 2D barcode reader (which supports Data Matrix symbology)
• TV
monitor
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Preparation and precaution
• Download the Rpower 8550 5.12.61 (KEM470) folder from the specified download source to the PC.
• While writing OPU parameter, keep the other application software on the PC closed. It is also recommended to
keep the software on the task tray closed as well.
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Outline of operation procedure
<When replacing BD mechanism unit>
1. Read the OPU parameter of a replacement BD mechanism unit in advance, and save it to the PC. (See “Reading
and saving OPU parameter”)
2. Install the replacement BD mechanism unit after removing the old one.
3. Write the OPU parameter saved on the PC to the FLASH ROM on MAIN P.C.B., and check disc playback capability
consecutively. (See “Writing OPU Parameter and Disc Playback Capability Check”)
<When replacing MAIN P.C.B.>
1. Replace the MAIN P.C.B.
2. Remove the BD mechanism unit once.
3. Read the OPU parameter of the removed BD mechanism unit, and save it to the PC. (See “Reading and saving
OPU parameter”)
4. Reinstall the removed BD mechanism unit.
5. Write the OPU parameter saved on the PC to the FLASH ROM on MAIN P.C.B., and check disc playback capability
consecutively. (See “Writing OPU Parameter and Disc Playback Capability Check”)
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BRX-610/NS-PZ20
BRX-61
0/NS-PZ20
