| |
Type I, Style A | Troubleshooting |
6. Troubleshooting
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
Refer to Table 7. This section provides troubleshooting information for the
Table 7.
Problems and Possible Causes | Solutions |
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 |
2001 Siemens Airfield Solutions, Incorporated | 96A0027L | Page 30 |
All rights reserved | Issued 5/01 |
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