Thank you, this is a rare document. Few others have it, but they charge way more for a download.
Great deal (even if you have to wait a few hours to get it).
The purchased manual is an scan of the original Panasonic paper-based Service Manual. Unfortunately the contrast is not perfect, but I am satisfied anyway!
The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
It paid to find this Service Manual, couldn't find it anywhere else. Exactly what I wanted. Received within 24 hours.
Text excerpt from page 72 (click to view)
3.3.21 Control Board
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When exchanging the control board, remove the EEPROM off the existing board and install it on the new one. The control board is different for each model. OL400e and OL4OOex: OLCW-PCB OL4lOex: OLCW-3 PC9 Remove the upper cover (see 3.3.1).
.
(1)
(2) Remove the lower base unit (see 3.3.8).
(3)
Remove two screws 0.
(4) Move the control board Q in the direction of the arrow to disconnect it from the power supply board Q. (5) Remove the control board 8 together with the PC9 guide plate @ (remove the fan motor Q at the same time). (6) Remove three screws 8 and two posts 0, and remove the PCB guide plate @ from the control board @. (7) Disconnect the connector from CNl of the control board 8, and remove the fan motor Bt. Note: Install the EEPROM @I on the new control board.