ELEV
A
TION
MOTOR
RECLINING
MOTOR
BACK REST
RECLINING
MOTOR
FOOT REST
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・
The connection confirmation of Printed board (main) CN3 and CN4.
・
The connection confirmation of Printed board (UP/DOW Pulse)
CN401
〜
CN404.
・
Pull out CN404 on the Printed board (UP/DOW Pulse).
and check for the red pin to gray pin output and blue pin to gray
pin output
of the Printed board side CN404
(to be approx. AC100V respectively).
*
For checking after power ON,keep either vertical adjust button
"UP" or "DOWN" as pressed.
・
The connection confirmation of Printed board (Relay) CN203.
Check turning on confirmation main harness.
・
Check limit switches motion.
< Under normal condition >
Stop at the highest position(limit switch ON)
CN203 connector open (
∞
)
・
Check the Printed board (UP/DOW Pulse) IC401 and IC402 for tilt.
・
Check the elevation magnet for the mounting direction or fall- down.
・
Check the belt (ROLLING) for dislocation and cut- off.
・
The connection confirmation of Printed board (main) CN5.
・
Check the CN5 output (to be approx. DC100V).
・
The connection confirmation of Printed board (main) CN12.
・
Pull out the CN12 connector
.
and check turning on confirmation of the motorized recliner side
No1 to No2 pin and No3 to No4 pin.
・
The connection confirmation of Printed board (Foot Rest)
CN251 and CN252 and CN253.
・
Check the CN252 output (to be approx. DC100V).
・
The connection confirmation of Printed board (main) CN18.
・
Pull out the CN18 connector
.
and check turning on confirmation of the motor side No1 to No2 pin
and No3 to No4 pin.
・
Each connector insertion.
・
Each connector insertion.
・
If output from the both.---Replace the elevation motor
.
If no output,
Replace the Printed board (main) or the elevation motor
.
・
Each connector insertion.
・
Replace the limit switch.
・
Correct the tilted condition.
・
Replace the Printed board (UP/DOW Pulse).
・
Mount the magnet in normal condition.
・
Mount or replace the belt.
・
Connector insertion.
・
If output,
Replace the Motor (Elevation).
If no output,---Replace the Printed board (main)
・
Connector insertion.
・
When the both are
∞
(open);
Replace the Motor (Elevation).
・
Each connector insertion.
・
If output,
Replace the reclining motor(Leg Rest).
If no output,
Check the CN251 output (to be approx. AC100V).
The relay (R
Y251) The operation confirmation.
If extraordinary and not being.
Replace the Printed board (Foot Rest)
If being extraordinarily.
Replace the Printed board (main)
・
When the both are
∞
(open)
Replace the reclining motor(Leg Rest).
・
The elevation motion doesn't
move.
・
Trouble described left is
displayed 3 or 30 seconds
later after elevation
・
Trouble described left is
displayed 3 seconds later
after the power ON
・
The back rest reclining
motion doesn't move.
・
Trouble described left is
displayed 3 seconds later
after the power ON
・
The foot rest reclining
motion doesn't move.
・
Trouble described left is
displayed 3 seconds later
after the power ON
Troubled
portion
MANU
LED
SPEED
LED
WIDTH
LED
T
roubled phenomenon
Check item
Counteraction method
- 10 -
Problem Diagnosis Chart
HEC-DR21
(TAIWAN)
