©2003 Maytag Appliances Company
16022808 Rev. 0
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Troubleshooting Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing
requires power.
Titan LED Washer Control Board Inputs Table
Membrane Pad Continuity Checks
Unplug ribbon connector from display board. Touch probe of meter to the appropriate pin numbers listed in the chart.
Meter will show infinite unless the appropriate key is pressed.
Item
Description
Voltage
Input type
Input to Where
Comments
Water Valve
Thermistor
0 - 3.3 VDC
Analog
Input to Micro-
processor
Power Cord
Line
120 VAC
Input to some relays
Neutral
120 VAC
Input to some relays
Ground
Chassis
ground
Lid Lock Switch
This switch senses if the lid is
locked
0 - 12 VDC
Digital
Input to Micro-
processor and safety
circuitry
Closed when lid
is locked
Lid Closed Switch
This switch senses if the lid is
closed
0 - 12 VDC
Digital
Input to Micro-
processor and
system relay coil
Closed when lid
is closed
User Interface
Membrane switch key pad
0 - 12 VDC
Digital
Input to Micro-
processor
Open when key
is not pressed
Tach from Variable
Speed Motor Control
Tach signal
0 - 12 VDC
Digital
Input to Micro-
processor and safety
circuitry
Pressure switch
Low water level
0 - 12 VDC
Digital
Input to Micro-
processor
Closed when not
satisfied
Medium water level
0 - 12 VDC
Digital
Input to Micro-
processor
Closed when not
satisfied
High water level
120 VAC
Input to Micro-
processor and some
relays
Closed when not
satisfied
Button
Pin Number
Home
5 & 3
Favorites
6 & 3
Back
5 & 4
Off
5 & 7
Start/Pause 6 & 7
Help
6 & 4
Stain Brain
5 & 8
Cycle Library 6 & 8
Pin # 2
Содержание Neptune TL FAV6800A
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