Section 1 Servicing Notes - Sony PRS-600 - Electronic Book Reader Service Manual

PRS-600
NOTE THE EACH BOARDS REPAIRING
The mount parts on each boards installed in this set cannot ex-
change with single. When the each boards are damaged, exchange
the entire mounted board.
NOTE OF REPLACING THE COMPLETE MAIN BOARD
OR CHASSIS_ASSY
Please do the following work when you exchange complete MAIN
board or CHASSIS_ASSY.
Note: INK INDICATOR ELEMENT is included in CHASSIS_ASSY.
• VCOM VOLTAGE ADJUSTMENT: Refer to page 10.
• REWRITING THE LUT: Refer to this page.
REWRITING THE LUT
As for INK INDICATOR ELEMENT, the parameter that rewrites
the screen of each lot number is different. This parameter is called
LUT (Look Up Table).
When replacing the complete MAIN board or CHASSIS_ASSY
(including INK INDICATOR ELEMENT) you need to rewrite the
LUT.
However, rewriting is not required if the lot number is the same.
Note 1: Confi rm the "LUT" version corresponding to the lot number of
Ink Indicator Element and LUT fi le, and the test mode data to
each service headquarters.
Note 2: LUT is written in IC705 of the MAIN board.
Refer to the following for the confi rm method of the LUT version
and the method of changing LUT.
• Confi rm method of LUT version
Enters the test mode when SD memory card with test mode data
is inserted in this set while pressing the [HOME] and [VOL +]
buttons.
Check the current LUT version displayed at the right side of "8.
Update Waveform" as in the screen below. The LUT version is
"8202191919" in this example.
LUT version
(Screen display)
2
SECTION 1
SERVICING NOTES
• Lot number confi rm method of Ink Indicator Element
The lot number is printed on the bar code label of the fl exible fl at
cable of INK INDICATOR ELEMENT.
In the example of the fi gure below, the lot number is "B526".
lot number
• How to change the LUT:
Copy the LUT fi le you want to update to the folder under "/Sony
Reader/software/data/" in the SD memory card exclusive for the
test mode, and then change the name to "lut.bin". Execute test
mode "8. Update Waveform". The LUT will be updated in about
10 seconds, and the screen changes into all white. Press the [RE-
SET] button and reboot the set. Enter the test mode again, and
confi rm LUT version has been updated.
Note 3: To create the SD memory card exclusive for the test mode, refer
to TEST MODE (Page 8).
MAIN board
chassis_assy