11. DISASSEMBLY
* Refer to 13. EXPLODED VIEW (the parts ( B and N ) are used for only BN-20).
11-1. Disassembly for keyboard side
1. Slide the battery switch g on the back of the BN Unit to the REPLACE BATTERIES position.
2. Remove the battery cover ] .
3. Remove two screws S1 .
4. Remove the lower case [ (+ the cover a ) using an opener as shown below.
* At this time, take care not to break ribs.
<Upper case side>
Keys
Blade of opener
<Lower case side>
5. Remove the reset rubber key k taken in the lower case [ .
6. Remove the button _ .
7. Remove the battery switch g .
8. Remove the lever d .
9. Remove the switch h for MODEM.
10. Remove three screws S2 .
11. Remove two flat cables e f from two connectors (CN101 and CN102) as shown below.
UP
Flat cables and FPC etc.
CNXXX connector (0.5 mm pitch)
PCB
12. Remove two flat cables e f from two connectors (CN301 and CN302) as shown above.
13. Remove a screw S3 .
14. Remove the inner case \ .
15. Remove the rubber key for P button k taken in the inner case \ .
16. Remove the cover c and tiny spring j .
* Take care not to lose the tiny spring j .
17. Remove the FPC H from the connector CN601 .
18. Remove the black wire WIR1 soldered to the main PCB ASSY R .
19. Remove the carbon sheet S from the connector CN103 as shown to the item 11.
20. Remove six screws S4 and two washers W1 .
21. Remove Main PCB ASSY R .
22. Remove the rubber sheet Q .
23. Remove keys ( O UV W Y
24. Remove the sheet for mode keys T .
25. Remove the shield plate Z .
26. Remove the carbon sheet S .
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