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● Nothing.is.displayed.on.the.LCD.but.the.switch.panel.works..
Possible.Cause.1.:..The.connector.may.be.disconnected.
Solution.1.:
Referring to 〔6〕 【A】 “Assembling the Controller”, disassemble the controller
and check if the connector between the panel board and LCD unit is
disconnected.
Possible.Cause.2.:..The.LCD.unit.may.be.out.of.order..
Solution.1.:
Replace the LCD unit.
Possible.Cause.3.:..The.switch.board.may.be.faulty..
Solution.1.:
Check the soldering surface on the switch panel board.
Solution.2.:
Replace the switch panel board.
● The.panel.switch.get.stuck.and.does.not.spring.back..
Possible.Cause.1.:..A.burr.on.the.key.top.prevents.it.from.springing.back..
Solution.1.:..
Referring to 〔6〕 【A】 “Assembling the Controller”, disassemble the controller
and remove the burr on the key top.
● No.sound.comes.from.LINE.OUT..
Possible.Cause.1
:
Are.the.IN.and.OUT.terminals.correctly.connected?
Solution.1.:
Check the connection.
Possible.Cause.2
:
The.connector.may.be.disconnected.
Solution.1.:
Referring to 〔6〕 【B】, open the connector cover of the sound source unit and
check if all connectors are firmly inserted.
Solution.2.:
Referring to 〔6〕 【B】, open the sound source unit and check if all connectors
are firmly inserted.
Solution.3.:
Referring to 〔6〕
【A】, disassemble the controller and check if the connector of
LINE board is displaced.
Solution.4.:
Check if the cable is snapped or not.
Possible.Cause.3
:
The.switch.board.may.be.faulty..
Solution.1.:
Check the analog board inside the sound source unit and the soldering surface
on the LINE board of the controller.
Solution.2.:
Replace the analog board inside the sound source unit.
Solution.3.:
Replace the LINE board inside the controller.
