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14
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HEC-DR8700
Problem Diagnosis Chart
Error message
Troubled portion
Troubled phenomenon
Check item
Counteraction method
POWER
REMOTE
CONTROL
SENSOR
Nothing is displayed after the
power ON.
It displays after [ remote control
communication impossible ]
3 seconds.
(When Printed board (Main)
detects)
It displays after [ remote control
communication impossible ]
3 seconds.
(When Printed board (Remote
control) detects)
It displays after [ sensor
communication impossible ]
3 seconds.
(When Printed board (Main)
detects)
It displays after [ sensor
communication impossible ]
3 seconds.
(When Printed board (Sensor
controller) detects)
Indication does not disappear.
"Grip the Sensor"
1. Check the current fuse for fusion.
2. Check the Printed board (Power) CN201 output (Local voltage).
3. Check the Printed board (Power) CN203 output (AC 100V).
4. Check the Printed board (Main) CN1 output (AC100V).
5. Check the Printed board (Main) CN12 output (approx. AC15-20V).
6. Check the Printed board (Main) CN14 for connector come-off.
7. Check the Printed board (Remote control) CN301 for connector
come-off.
8. Check the Remote control cord and Connector (Remote control B)
for disconnection or shorting.
9. Others.
1. The connection confirmation of Printed board (Main) CN14.
2. The connection confirmation of Printed board (Remote control)
CN301.
3. Check the Remote control cord and Connector (Remote control B)
for disconnection or shorting.
4. Others.
1. The connection confirmation of Printed board (Main) CN14.
2. The connection confirmation of Printed board (Remote control)
CN301.
3. Check the Remote control cord and Connector (Remote control B)
for disconnection or shorting.
4. Others.
1. The connection confirmation of Printed board (Main) CN15.
2. The connection confirmation of Printed board (Sensor controller)
CN701.
3. Check the Connector A,B (Sensor controller) for disconnection
or shorting.
4. Others.
1. The connection confirmation of Printed board (Main) CN15.
2. The connection confirmation of Printed board (Sensor controller)
CN701.
3. Check the Connector A,B (Sensor controller) for disconnection
or shorting.
4. Others.
1. The connection confirmation of Printed board (Sensor controller)
CN702, CN703.
Replace the current fuse.
Check the Power switch and Power cord for
normal conductivity and replace them if
necessary upon check.
Check the Transformer and the Connectors
(Transformer/ Change) for normal conductivity
and replace them if necessary upon check.
Check the Connector (Printed board B) for
normal conductivity.
Replace the transformer.
Insert the connector.
Insert the connector.
Replace the Remote control cord and Connector
(Remote control B).
Replace the Printed board (Remote control).
or Printed board (Main).
Insert the connector.
Insert the connector.
Replace the Remote control cord and Connector
(Remote control B).
Replace the Printed board (Remote control).
or Printed board (Main).
Insert the connector.
Insert the connector.
Replace the Remote control cord and Connector
(Remote control B).
Replace the Printed board (Remote control)
or Printed board (Main).
Insert the connector.
Insert the connector.
Replace the Connector A,B (Sensor controller).
Replace the Printed board (Sensor controller)
or Printed board (Main).
Insert the connector.
Insert the connector.
Replace the Connector A,B (Sensor controller).
Replace the Printed board (Sensor controller)
or Printed board (Main).
Insert the connectors.
*Be sure to grip the sensor.
*When the user's skin is dry (especially a person with dry skin), the degree of stress or
stiffness may not be measured correctly.
In such a case, slightly moisten with the fingers using hand cream.
