Operation Parts - Fuji Electric ZPA Service Manual

(10) Operation Parts

Error mode
Phenomena
Check
Allocation of Connector
Connector pin
No.
2-10
3-10
4-10
5-10
6-10
7-10
8-10
9-10
Measures
Replacement
Check after replacement :
18
: Wear on switching
: Faulty operation
: Be sure to turn OFF the main unit power supply before inspecting.
1) Remove the cable.
2) Measure the resistance for connector pin No. of switch that does not function with a
tester (see Allocation of Connector Table).
3) Press the switch that does not function to check the continuity.
Normally it is conductive when pressing the switch and opens when releasing the switch.
Switch
name
MODE
ESC
ENTER
ZERO
SPAN
: Replace the operation unit.
: Remove the main board and the main board mounting plate. Remove the nut, spring
washer, washer at 4 corners of the operation unit. You can now remove the operation unit
and replace it with a new one.
Assemble all the parts in reverse order of disassembly. Finally insert the cable into the
connector.
Check that all keys function.
TN5A1191-E