Hakko Electronics FM-2022 - Troubleshooting Guide

8
■ Checking the connection
cord for breakage (Refer to
P.11 WIRING DIAGRAM of A
side. )
1. Remove the soldering tip and the handle.
2. Measure the resistance values between the
connector and the lead wires at the socket
as follows:
Pin 7 - (1) Pin 2 - (3)
Pin 4 - (4) Pin 8 - (2)
If any value exceeds 0Ω or is ∞, replace the
FM-2022.
A side socket
(2)(inside)
(3)
(4)
(1)
9. TROUBLESHOOTING GUIDE
WARNING:
Disconnect the power plug before servicing.
Failure to do so may result in electric shock.
CHECK : Is the power cord disconnected?
ACTION : Connect it.
CHECK : Is the tip inserted properly?
ACTION : Insert the tip completely.
CHECK : Is the connection cord and/or the
heater/sensor broken?
ACTION : See the appropriate section of this
manual regarding how to check the
connection cord and/or the heater/
sensor for breakage.
● The tip does not heat
up.
• The sensor error is dis-
played.
● Solder does not wet the
tip.
CHECK : Is the tip temperature too high?
ACTION : Set the appropriate temperature.
CHECK : Is the tip contaminated with oxide?
ACTION : Remove the oxide by cleaning the tip
on a damp sponge of Hakko 599B tip
cleaner.
● The tip temperature is
too high.
CHECK : Is the connection cord broken?
ACTION : See “Checking the connection cord
for breakage”.
CHECK : Is the entered tip identification
number correct?
ACTION : Enter the correct value.