Release
1.0
Technical Documentation
11/2005
TD_Repair_L1-L3_C72_R1.0.pdf
Page 40 of 45
19 MMI Problems
Fault Symptoms
Customer: GRT:
Keyboard malfunction
Keyboard malfunction
Keypad illumination does not work
Current measured failed
MMI BtoB connector
Problems
Watch for oxidation and
damaged pads of the
Connector
caused by customer
SCRAP
- has to be send
separately to WSC
okay
Check the status of the
Connector visually
Use the resistor test
function of a
multimeter to check
connection between
spring contacts and
soldering contacts.
The value must be
~0
Ω
Exchange
Connector
Continue with
higher repair level
okay
not
okay
not
okay
- check for twisted or
bent contacts
- check for dry joints
Back to customer
without repair
Connector BOARD-TO-BOARD 12 POL
Use hot air blower to remove defective component. Avoid excessive heat! Watch surrounding components!
Resolder new component afterwards.
E-commerce order number:
L36334-Z97-C162
E-commerce order name:
CONNECTOR BOARD-TO-BOARD 12 POL
Soldering temperature:
~ 360°C Tip Temp.
IRIS Diagnose Code:
21000 Display / Performance
22000
Display
/
Background
Illumination
Company Confidential
2005©BenQ
