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COMPONENTS
TOUCH KEY
BOARD
SENSOR
(For sensor model only)
TEST PROCEDURES
Measure the resistance between terminal
pins of connector KEY CONNECTOR.
NOTE:
When reconnecting the FPC connector,
make sure that the holes on the FPC
connector are properly engaged with hooks
on the plastic fastener.
MATRIX CIRCUIT FOR
TOUCH KEY BOARD
CONNECTOR(KEY CON)
For Model AMV6177AAB
AMV6177AAQ
AMV6177AAS
AMV6177A AW
Figure 27
1. Remove the 3 pin connector from PCB.
2. Measure resistance across pins 1 & 2.
3. Across pins 2 & 3.
(ohm meter scale:Rx1)
Figure 29
Normal:
Approximately
at 68 ± 35°F
Abnormal:
1
Infinite or several.
2
3
7-17
RESULTS
When
touched
Resistance
value
Less than
400 ohms
FPC CONNECTOR
Top
Figure 28
1 & 2
2 & 3
∞
3.1 Kohm
When not
touched
More than
1 mega ohm
1
2
3
4
5
6
7
8
9
10
11
12
13
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