Справочник Пользователя для Siemens RL-854

RL-854 Radio Control Unit
Type I, Style A

Troubleshooting

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 2001 Siemens Airfield Solutions, Incorporated

96A0027L

Page 30

All rights reserved

Issued 5/01

WARNING:  Allow only qualified personnel to perform the
following tasks.  Observe and follow the safety instructions in
this document and all other related documentation.

WARNING:  Make sure power to the RL-854 has been
disconnected before attempting to service the radio control unit.

Refer to Table 7.  This section provides troubleshooting information for the
RL-854 Radio Control unit.

Table 7.  RL-854 Radio Control Unit Troubleshooting

Problem: No Timer Lamp
Defective lamp

Replace lamp.

Defective motherboard

Repair or replace motherboard.

Bad contacts on decoder board

Clean contacts.

Problem: Timer light is on but relay fails to function
properly
Defective relay

Swap with spare relay and test; replace if necessary.

Problem: One or more relay(s) remain powered
Defective relay

Replace relay.

Defective decoder board

Repair or replace decoder board.

Problem: One or more relay(s) fail to power
Defective relay

Replace relay.

Defective relay socket

Replace socket.

Bad contacts on decoder board

Clean contacts.

Defective decoder board

Repair or replace decoder board.

Problem: No carrier lamp
Defective lamp

Replace lamp.

Defective antenna

Check antenna and antenna lead.

Defective lamp socket

Replace socket.

Low sensitivity

Increase sensitivity by turning pot2 on receiver board
clockwise.

Defective receiver board

Replace or repair receiver board.

Wrong frequency

Check for proper frequency setting on receiver PCB.

Problem: No power lamp
No power

Check power source.

Defective lamp

Replace lamp.

Blown fuse

Replace fuse.

Defective motherboard

Repair or replace motherboard.

Problem: No fast time when timer test switch is in FAST
position
Bad contacts on decoder board

Clean contacts.

Defective decoder board

Repair or replace decoder board.

Continued on next page