Furuno IB-681 manual Maintenance & Troubleshooting, Self Test at Terminal Unit, Cleaning

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4. MAINTENANCE & TROUBLESHOOTING

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment unless totally familiar with electrical circuits and service manual.

Only qualified personnel should work inside the equipment.

4.1 Maintenance

4.1.1 Cleaning

Dust or dirt on the equipment may be removed with a soft, dry cloth. Do not use commer- cial or chemical cleaners to clean the unit; they can remove paint and markings.

4.1.2 Resetting the circuit breaker

The BREAKER button on the rear panel pops out when the voltage input to the equipment exceeds the voltage rating. In this case, reset the power and press the button to restore normal operation.

4.2 Self Test at Terminal Unit

1.At the standby display, press [F4], [6], [5] and [Enter] to display program nos. of de- vices. If the IB-681 is powered off or is not connected, *CONNECT ERROR* appears in the HSD MODEM field.

[Self test]
<<Program No.>>
CPU1 (Tx)	165-0104-1**	(Rx) 165-0103-1**
CPU2 (SYS CPU)	165-0105-1**	(I/O) 165-0108-1**
ANTENNA	165-0102-1**
VOICE CODEC	165-0096-x**
HSD MODEM (CPU)	165-0133-1**	(DEMOD) 165-0134-1**

(DECODE) 165-0135-1**

Start Selftest OK? (Y/N) Y

** Program No.

Figure 11 Program no. display

2. Press [Y] and [Enter] to test.

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Contents Page B . N o . O M E 5 6 0 9 Safety Information for the Operator Safety InstructionsElectrical Shock Hazard Safety Information for the InstallerTable of Contents Declaration of conformity to type Appendix Usage TipsIntroduction FeaturesComplete Set Installation Materials CP16-01601Installation Materials CP16-01602 Equipment ListInstallation Materials CP16-01603 Installation Materials CP16-01605Optional Equipment IB-681 System ConfigurationIB-181 IB-281Overview Control DescriptionFront panel IB-681, rear view Rear panelData rate SettingsSwitch Panel Settings DIP switchesSW2 Terminal interface Terminal Unit Settings OID/DID and IMN SettingsConfirming subscriber number Registering, Deleting Subscriber NumberRegistering subscriber number Deleting subscriber numberOperation CallingAutomatic HSD call Manual call Tone Name FrequencyInterval Automatic call mode and receiving operation ReceivingSW1 State Remarks SW3 State Remarks V.25bis Command, IndicationReceiving and automatic data rate switching Command Name DescriptionIndication Description Command DescriptionCall Sequence Direct call setup sequenceAddress call setup sequence Address call setup sequence Manual call setup sequence Manual call setup sequenceCall clear sequence from land Automatic call clear sequenceManual call clear sequence Manual call clear sequenceResetting the circuit breaker Maintenance & TroubleshootingMaintenance CleaningCalling Troubleshooting for the UserThen GeneralMounting location InstallationMounting procedure MountingWiring between HSD modem and router WiringRS-449 Interface Modifying the RF Conv board in the communication unitCPU2 Board 16P0133 Antenna cable Position of R135 LengthJ10 RF Conv BoardRF Conv Board CPU2 Board R135Mounting of connector assy Sub 9 pin Rear Panel BoardWiring between HSD modem and communication unit GroundJ11 Communication with other makes of Inmarsat-B terminals Circuit delayPropagation delay Router setting for network connectionNetwork configuration Syuchronous -asynchronous adapter Land Earth Station IOR Etilat IB-681 Page Page Page Index