─
15
─
Front panel
2
Unhook the inside claws (Indicated by
) of the front panel from the
base, and remove the front panel.
→
See page 5.
(2) Control circuit board (JT-37MH/JT-37M)
12. Overhauling procedures
Work precautions
• Before replacing parts, follow the instructions described in the troubleshooting.
• When servicing, always take care to keep proper footing.
• Before starting the service, always unplug the power cord from the outlet, or turn off the circuit breaker when
no power cord plug is provided. Sufficient care must be taken to avoid electric shock or injury.
• Make sure to connect the power supply wires correctly.
• After completing repairs, check that the unit operates properly.
Always wear gloves when servicing.
The part names in the text are standardized with the part names in the parts catalog. (There are some exceptions.)
(1) Turn off the power supply.
•
Turn off the circuit breaker on the distribution board.
1
Remove the front panel clamping screw.
(One PT screw 4 x 14, indicated by
)
3
Unscrew the screw to remove the control circuit board.
(One PTT screw 4 x 14, indicated by
)
Precaution for the models equipped with the heater
Be aware that the earth lead wire is connected between the front
panel and blower parts.
Blower parts
Earth lead wire
Control circuit board (JT-37MH/JT-37M)
For JT-S2AP type
CN 202
CN 201
Front panel
<A bottom view of the product>
Tightening torque:
1.0 ± 0.1 N.m
4
Disconnect the connectors (CN201 and CN202) from the control
circuit board.
Tightening torque:
1.0 ± 0.1 N.m
