Chapter 4 ______________________________________________________________ Maintenance
CHAPTER 4
MAINTENANCE
This chapter describes the basic maintenance of the product.
Periodic Maintenance
A nearby stroke of lightning can cause a burn out of the overvoltage
protection F1 in the antenna amplifier. Replace the overvoltage
protection F1, if burned out. Generally, the protection F1 is short-
circuited in this occasion.
Also, if the resistor R3 is burned, replace it with a new one.
If the damage cannot be repaired with these measures, replace the
entire circuit board.
Parts List for Consumables
Table 1
CA31 Available Spare Parts
Spare Part
Order Code
Antenna amplifier CAA21
15633
Cable to a sounding system
DRW217931 (33 m)
DRW221691 (3 m)
16190 (33 m for old systems)
VAISALA _______________________________________________________________________ 15
