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33

1. Re-register the checked Handset to the checked Base Unit, and Regular HS to Regular BU.

If you need to register a handset, refer to Registering a Handset to a Base Unit in the Operating Instructions.

Item

BU (Base Unit) Check

HS (Handset) Check

Range Confirmation Normal

HS, BU Mode: [Normal mode]

1. Register Regular HS to BU (to be 

checked).

2. Press [Talk] key of the Regular HS to 

establish link.

3. Compare the range of the BU (being 

checked) with that of the Regular BU.

1. Register HS (to be checked) to Regular 

BU.

2. Press [Talk] key of the HS to establish link.
3. Compare the range of the HS (being 

checked) with that of the Regular HS.

1. Prepare Regular HS (Handset) and Regular BU (Base unit).
2. a. Re-register regular HS (Normal mode) to Base Unit (to be checked).
        If this operation fails in some ways, the Base Unit is defective.
    b. Re-register Handset (to be checked) to regular BU (Normal mode). 
        If this operation fails in some ways, the Handset is defective.

Base Unit is defective

Handset is defective

START

Registration of 

Regular HS to

Base Unit

Registration of 

Handset to

Regular BU

(other checkings)

Registration of Handset to Base Unit 

(checked ones)

Registration of Regular HS to Regular BU

Yes

No

No

Yes

Start

 Range

confirmation

Normal

Check Range: Compare with a regular unit.

GOOD

NG

OK

34

Cellular Link is NG or Range is short

Clean the Cellular antenna contact.
Did the problem fix?

End

YES

NO

Replace a new lower cabinet assy(*).

Did the problem fix?

End

YES

NO

End

YES

NO

Update software.
Did the problem fix?

Replace with a new circuit
board

* Cellular antenna is placed on the lower cabinet.

Insert SIM Card (If no inserted)
Did the problem fix?

End

YES

NO

35

Is the lead wire of MIC
broken?

Re-solder the wire.
Did the problem fix?

NO

YES

End

NO

YES

NO

Replace with a new MIC.

Did the problem fix?

Handset Voice cann't be transmitted

End

NO

Update software.
Did the problem fix?

Replace with a new circuit
board

YES

NO

End

YES

Check Factory Mode

 "Microphone Check"

DECT has Problem?

YES

Check Signal Route of

 Base Unit

Use Regular Base Unit

Did problem fix?

YES

NO

NO

YES

36

No sound is heard from
handset receiver

Is the hole for the Receiver
clogged by dust?

Re-assemble the Receiver.

Did the problem fix?

End

End

NO

NO

Cleaning the hole of receiver.
Did the problem fix?

YES

YES

YES

NO

YES

End

NO

Replace with a new Receiver.
Did the problem fix?

Check Factory Mode

 "Receiver and headset Check"

End

YES

NO

Update software.
Did the problem fix?

Replace with a new circuit
board

DECT has Problem?

YES

Check Signal Route of

 Base Unit

Use Regular Base Unit

Did problem fix?

YES

NO

NO

YES