2KJ/2KH
1-6-2
1-6-2 Adjustment-free variable resistors (VR)
The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field.
High voltage PWB: VR401
APC PWB: VR1
1-6-3 Remarks on main PWB and engine PWB replacement
When replacing the main PWB or engine PWB, remove the EEPROM (YS3) or EEPROM (U3) from the PWB that has
been removed and then reattach it to the new PWB.
Figure 1-6-2
Engine PWB
Main PWB
EEPROM
EEPROM
(U3)
EEPROM
(YS3)
EEPROM
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