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0
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Trouble shooting(4D-970)
)
■
Precautions for repair or exchange
a. Make sure to unplug when you exchange parts, teardown, inserting or removing the connector.
b. Make sure to work for repair after following actions when you touch main circuit board(each board) as
semiconductor(Ex. IC) is
static-sensitive.
※
Remove human earth or touch an earth(Ex. refrigerator, washing machine) directory by hand and release the static from
electrically charged body.
c. Do not touch power supply board without discretion as high(AC100V
~
240V) and low(24V
・
12V
・
5V) pressure
are mixed in the power supply board. It may cause electric shocks. Please be very careful with checking voltage.
1.
Power does not turn ON
(4D-970
:
LCD does not light up)
Is the power cord plug connected?
Is the main power switch on?
Connect the power cord plug with the receptacle.
No
Yes
Switch ON
Did you press “ON/OFF
“ button?
Press “ON/OFF “ button.
Check if each cord in the main circuit
board is connected to appropriate
connector.
Power cord
・
Main circuit board(CN1)
Remote cord
・
Main circuit boardCN4
)
8 pin cord
・
Power supply board(CN301),
Main circuit board(CN1)
2 pin cord
・
Power supply board(CN601)
Main circuit board(CN2
)
Make sure to connect each cord.
Power mark overvoltage is appeared on
power supply board connector of power
cord(CN1)?
Check with the tester.
Breaking or cut of power cord or
disconnection of power switch.
Repair to exchange.
No cut or breaking of remote cord?
Exchange remote control.
Exchange remote cord.
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Below voltage is shown from the
connector
of
power
supply
board
(CN301)? Check with the tester.
Between Pin # 1 - #2
:
DC12V
Exchange the power supply board.
No
Yes
Remote cord is firmly connected to remote
board connector(CN1)
電源コード・電源基板
(CN1)
リモコンコード・制御基板(
CN4
)
8
芯コード・
電源基板
(CN301)
制御基板(
CN1
)
2
芯コード・
電源基板
(CN601)
制御基板(
CN2
)
Make sure to connect it.
Yes
No
Below voltage is shown from the
connector of main circuit board(CN4)?
Check with the tester.
Between Pin# 1 - #2
:
DC5V
Exchange main circuit board.
No
Yes
Summary of Contents for 4D-970
Page 5: ...Main body Remote controller ...
Page 6: ......
Page 22: ...椅子上部分解図 6 1 18 7 7 2 4 12 5 3 8 9 17 10 ...
Page 26: ...200 205 腕ユニット分解図_L 202 204 201 203 201 206 201 207 ...
Page 27: ...210 208 201 207 201 203 201 211 腕ユニット分解図_R 209 202 207 ...
Page 29: ...Massage chair Remote control unit KX 2980UL Component list 351 350 ...
Page 30: ...404 401 402 403 405 リモコンスタンド分解図 Premium4S 400 ...
Page 31: ...付属品梱包仕様図 452 453 450 68 451 ...