Level 3 Repair
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8-18
8-3-
8
. Key Data Input
Check Initial Operation
Yes
When you pushed all of the
Key, does the key have
tension?
Change Domesheet
(#1 : look over the Dome situation
whether be sunken
#2 : look over the Dome location
whether be out of line)
Yes
Check the key circuit.
(not connected, not soldered,
short)
Resolder L200 L201 L202 L203 L204 L205 C221
C226 ZD204
No
Yes
No
Replace the PBA
(over the insturctions again
and change the board
because of be possible for PBA to get damaged)
No
Yes
END
All of the key doesn't work
except POWER ON KEY ?
Summary of Contents for SM-B105E
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