8. CHECKING PROCEDURE
Measure the resistance across this position.
1
4
7
2
8
5
6
3
■
Check for a broken heater or
sensor
■
Check the grounding line
1. Check for a broken heater or sensor
Verify the electrical integrity of the heater and sensor.
Measure the resistance of the heater and sensor while at room
temperature
（
15
〜
25
℃
；
59
〜
77
℉
）
. It should be 8
Ω
±10%. If
the resistance exceeds these limits, replace the tip.
1. Unplug the connection cord from the station.
2. Measure the resistance value between Pin 2 and the tip.
3. If the value exceeds 2
Ω
(at room temperature), perform the
tip maintenance described on section 2, maintenance for the
tip. If the value still does not decrease, check the connection
cord for breakage.
WARNING
Unless otherwise directed, carry out these procedures with the power switch OFF and the power UNPLUGGED.
Black
White
Green Red
■
Checking the connection cord
for breakage (HAKKO FM-2027)
■
Replacing the fuse
1. Remove the soldering tip and the sleeve assembly.
2. Turn the front piece of the HAKKO FM-2027 counterclockwise
and remove the cover.
3. Measure the resistance values between the connector and the
lead wires at the socket as follows:
Pin 1 – Red
Pin 2 – Green
Pin 3 – Black
Pin 5 – White
If any value exceeds 0
Ω
or is
∞
, replace the HAKKO FM-2027.
1. Unplug the power cord from the power receptacle.
2. Remove the fuse holder.
3. Replace the fuse.
4. Put the fuse holder back in place.
CHECK
: Is the power cord and/or the connection plug disconnected?
ACTION : Connect it.
CHECK
: Is the fuse blown?
ACTION : Replace the fuse. If the fuse blows again, send the unit in for repair.
CHECK
: Is the tip inserted properly?
ACTION : Insert the tip completely.
CHECK
: Is the connection cord and/or the heater/sensor broken?
ACTION : If the cord assembly is broken, replace the soldering iron, desoldering tool or
handpiece.
CHECK
: Is the tip temperature too high?
ACTION : Set the appropriate temperature.
CHECK
: Is the tip contaminated with oxide?
ACTION : Remove the oxide
CHECK
: Is the connection cord broken?
ACTION : If the cord assembly is broken, replace the soldering iron, desoldering tool or
handpiece.
CHECK
: Is the tip contaminated with oxide?
ACTION : Remove the oxide
CHECK
: Is the handpiece connected?
ACTION : Remove and reinsert the handpiece.
CHECK
: Is the tip too small for the items to be soldered?
ACTION : Use a tip with a larger thermal capacity.
CHECK
: Is the setting value for the low-temperature alarm tolerance too low?
ACTION : Increase the setting value.
CHECK
: Is the appropriate HAKKO tip/nozzle being used?
ACTION : Turn the power switch OFF and insert the genuine HAKKO tip/nozzle. Turn the
power switch ON.
ACTION : Turn the power switch OFF and insert the genuine HAKKO tip. Turn the power
switch ON.
CHECK
: Is the tip left on the wet cleaning sponge?
ACTION : Turn the power switch off. Turn the power switch on again after removing the
tip from the wet cleaning sponge.
ACTION : Turn off the power switch. Turn on the power switch again.
If the “Zero-Cross Error” / “System Error” continues to be displayed after
turning on the power switch, contact your HAKKO representative.
9. TROUBLE SHOOTING GUIDE
WARNING
Before checking the inside of the HAKKO FM-206 or replacing parts, be sure to disconnect the power
plug. Failure to do so may result in electric shock.
●
The unit does not operate
when the power switch is
turned on.
●
The tip does not heat up.
“Sens Error” is displayed.
●
Solder does not wet the tip.
●
The tip temperature is too
high.
●
The tip temperature is too
low.
●
“Grip Error” is displayed.
●
The low-temperature alarm
tolerance error “Low Temp”
is displayed.
●
Heater terminal short circuit
error “Heater Short Error” is
displayed.
●
“Heat up Error” is displayed.
(for MODEL FM-2023)
●
“Drive Error” is displayed.
(for MODEL FM-2023)
●
“Zero-Cross Error” or
“System Error” is displayed.
15
Summary of Contents for fm-206
Page 17: ......
