Sanyo HEC-DR8700 - Shoulder Position and Stiffness Measurement

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20
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HEC-DR8700
Problem Diagnosis Chart
HEATER
Error message
Troubled portion
Troubled phenomenon Check item Counteraction method
1. The connection confirmation of Printed board (Power) CN210.
2. Check the Printed board (Power) CN210 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN216.
2. The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the seat reclining upper limit switch.
4. Others.
1. The connection confirmation of Printed board (Power) CN210.
2. Check the Printed board (Power) CN210 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN216.
2. The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the seat reclining lower limit switch.
4. Other
1. The connection confirmation of Printed board (Main) CN10.
2. Check the Connector A,B (heater) for disconnection.
3. Check the Thermistor (heater sole) for disconnection.
4. Others.
1. The connection confirmation of Printed board (Main) CN10.
2. Check the Connector A,B( heater) for shorting.
3. Check the Thermistor (heater sole) for shorting.
4. Others.
1. Check the Printed board (Main) TH1 for disconnection.
1. Check the Printed board (Main) TH1 for shorting.
Insert the connector.
If output Replace the reclining motor (seat).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (seat).
Replace the Printed board (Main).
Insert the connector.
If output Replace the reclining motor (seat).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (seat).
Replace the Printed board (Main).
Insert the connector.
Replace the Connector A,B (heater).
Replace the heater (sole).
Replace the Printed board (Main).
Insert the connector.
Replace the Connector A,B (heater).
Replace the heater (sole).
Replace the Printed board (Main).
Replace the Printed board (Main).
Replace the Printed board (Main).
RECLINING
SEAT
The seat reclining motion
doesn't move. (Don't up)
A foot rest reclining operation
stop is not carried out.
The foot rest reclining motion
doesn't move. (Don't down)
A foot rest reclining operation
stop is not carried out.
When there is thermistor (heater
sole) output
of continuation 3
seconds and more than 4.9V.
When there is thermistor (heater
sole) output
of continuation 3
seconds and less than 0.1V.
When there is thermistor (room
temperature) output
of
continuation 3 seconds and
more than 4.9V.
When there is thermistor (room
temperature) output
of
continuation 3 seconds and
less than 0.1V.
When there is no detection of reclining
switch (lower limit) at the seat part for
continuation 1 minutes while reclining
motor are moving for lower seat.
When there is no detection of reclining
switch (upper limit) at the seat part for
continuation 1 minutes while reclining
motor are moving for raising seat.