![background image](http://html1.mh-extra.com/html/national/es8093-a3/es8093-a3_service-manual_3359630007.webp)
5 TROUBLESHOOTING GUIDE
(Refer to WIRING CONNECTION DIAGRAM)
<TROUBLE>
<CHECK.>
<REMEDY>
Motor does not rotate.
<CHECK CHARGING ADAPTOR.>
NO
Replace charging
Does not charge.
→
→
→
→
Connect the rated voltage to the normal main unit setting onto the adaptor.
→
→
→
→
adaptor.
Functions for a mo-
Check if the LCD display of main unit turns on.
ment and stops.
↓↓↓↓
OK
<CHECK RECHARGEABLE BATTERIES.>
NO
Replace both recharge-
Okay if the voltage of rechargeable batteries is more than approximately
→
→
→
→
able batteries at the same
1.2V DC between (+) and (-) terminals.
time.
(Replace two rechargeable batteries at the same time even though one
battery is defective due to series connection.)
↓↓↓↓
OK
<CHECK MODULE.>
NO
Check the soldering
Connect the rated voltage to the main unit returned from a customer by
→
→
→
→
points.
the normal charging adaptor. Check if the LCD display turns on.
↓↓↓↓
OK
Replace module.
↓↓↓↓
OK
↓↓↓↓
OK
Replace linear motor
assembly.
<CHECK MODULE.>
NO
Check the soldering
When switching ON and OFF, check if motor rotates and LCD is lit.
→
→
→
→
points from A to D.
↓↓↓↓
OK
<CHECK MODULE.>
NO
Replace module.
Check charging current, if it is more than 600mA when connecting AC power
→
↓↓↓↓
OK
source.
Replace linear motor
NOTE: Please refer the procedure explained below.
assembly.
NOTE:
Please follow the procedure below for measurement of charging current.
1. Take out the right battery when viewed from the front.
2. Connect the chassis to the (-) terminal of battery by the lead wire.
3. Connect the chassis with the lead wire.
4. Measure the charging current between the (+) terminal of battery and the lead wire comes from chassis at the procedure #3.
7
ES8093-A3