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7 Repairing the knitting machine
Eliminating faults in electronics system
Replacing electronic card
7.4.5 Replacing electronic card
1. Set main switch to "0" and wait until the LEDs on the power supply unit go
out (approx. 60 seconds).
2. Open the cover of the left control cabinet.
3. Remove the card.
4. Plug in the new card.
5. Close the cover of the left control cabinet.
6. Set the main switch to "1" and a
cknowledg
e the error remedy.
NOTICE
An electronic card can be destroyed by electrostatic charge!
If you touch a board while you are electrostatically charged, the
board will be destroyed.
➜ First
discharge yourself by touching "ground", e.g. a water
p
ipe or the machine frame, then touch a card.
➜ Only touch cards on the edge or the front s
ide.
NOTICE
The electronic boards can be damaged by damage to the pins
on the rear of the board!
If the pins of the cards are bent or broken off at t
he rear, new
cards must be used.
➜ When replacing the cards, make sure that the pins are not
damaged.
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