Servicing Note - Sony PRS-500 Service Manual

NOTES WHEN REPLACING THE INK INDICATOR ELEMENT ASSY, MAIN BOARD AND FLASH ROM (IC1611)
When the INK INDICATOR ELEMENT ASSY, MAIN board, or FLASH ROM (IC1611) is replaced, you need to change the LUT.
Rewriting the LUT
The LUT is exclusive for each lot number of the INK INDICATOR ELEMENT ASSY. Therefore, when replacing the MAIN board, display
panel, or FLASH ROM, you need to rewrite the LUT. However, rewriting is not required if the lot number is the same.
Location where the LUT is stored
• IC1611
How to check the version of the stored LUT
• When you insert the Memory Stick in which the exclusive file is stored, the Test Mode is established. Check the current LUT version
displayed at the right side of Update Waveform as in the screen below. The LUT version is "8202191919" in this example.
How to check the lot number of the display panel
• The lot number is written on the label on the flexible card wire.
The lot number is "XBL15" in the picture below.
How to change the LUT
• Copy the LUT file you want to update to the folder under "/Sony Reader/software" in the Memory Stick exclusive for the Test Mode,
and then change the name to "lut.bin". Execute Test Mode No.3 "Update Waveform". The LUT will be updated in about 10 seconds,
and the LUT version display will also change.
• For the LUT version and the LUT file corresponding to the lot number of the panel, refer to Technical News.
NOTE:
• To create the Memory Stick exclusive for the Test Mode, refer to TEST MODE (Page 11).
• For the VCOM adjustment value of RV601 for each lot, refer to Electrical Adjustment (Page 12).
SECTION 1

SERVICING NOTE

PRS-500
3