Inventec DG12BT, Maintenance Instruction

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25
Innovating Customer Value
Inventec Confidential
LED NG (key)
Check whether there
is anything (or Mylar)
on the key
Y
N
Clean or wipe off
the thing
Check whether the
LED of the K/B is
weakly welded or
broken
Y
N
Re-weld or
change the LED
Checking method
：
Cross-
testing the two sides of
LED by Multimeter ,
gearing to the short circuit,
if the LED is on at one
direction, it shows good.
Check whether the
connection of CN601
&K/B FPC is OK,FPC is
void-welded
Y
N
Reassemble the K/B
Or change the FPC
Check whether there is
any pin of the connector
‘CN601’ ( M/B &K/B)
broken
Y
Change CN601
N
F
¾
LED NG (on the key board)