Disassembly And Replacement Of Pc Boards <20L/23L/25L/20H/23H/25H> - Toshiba e-STUDIO2006 Service Manual

9. REPLACEMENT OF PC BOARDS
9.1 Disassembly and Replacement of PC Boards
<20L/23L/25L/20H/23H/25H>
Notes:
If the PC board has to be replaced due to an operational defect, this may have been caused by a
contact failure of the connector. Before replacing the board, disconnect and then reconnect the
connector to check if this action eliminates the operational defect.
9.1.1 Main board (MAIN)
(1) Take off the rear cover.
( P. 4-5 "4.1.9 Rear cover <20L/23L/25L/
20H/23H/25H>")
(2) Disconnect all connectors on the main board.
(without RADF: 14 pcs., with RADF:16 pcs.)
(3) Remove 4 screws and take off the main
board [1].
Notes:
1. When replacing the main board, also
attach the memory (IC11) to the new main
board from the old main board.
2. Be sure to perform "05-3219" with the
platen cover or the RADF closed after
replacing the main board.
3. When installing IC11 [2], be sure that its
pins are attached in the correct direction
and not misaligned.
4. Do not touch the pins of IC11 [2] with your
bare hands. (Be careful of static
electricity.)
© 2013-2017 TOSHIBA TEC CORPORATION All rights reserved
Fig. 9-1
[1]
Fig. 9-2
e-STUDIO2006/2306/2506/2007/2307/2507/2303A/2303AM/2803AM/2309A/2809A
9 - 1
[2]
REPLACEMENT OF PC BOARDS
9