DRAKE 1002387A Руководство по эксплуатации - Страница 6

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The unit has 4 valid operating modes: STD CATV, IRC, HRC & Broadcast UHF/VHF. The DUC864A unit comes factory set

to operate in the Standard CATV mode.

TO CHANGE THE OPERATING MODE

1. Simultaneously depress the RF Level

2. The Channel LED display will switch to the operating mode selection.

3. Use the RF Level

UP or

a. C = STD CATV

b. H = HRC

c. I = IRC

d. U = Broadcast (VHF/UHF)

4. After selecting the desired mode depress the ENTER button to set the mode.

5. The unit will return to the channel display mode.

a. Programming will reflect the mode chosen – See Appendix for detailed frequency plans.

b. The operating mode will also flash continuously during the mode selection process. The LED display will continue

to flash for 30 seconds if the ENTER button is not depressed and then will return to the display of the previously

programmed channel & mode entry setting.

NOTE: The mode presently in memory will be displayed without flashing during the mode selection process.

TROUBLESHOOTING

A continuously flashing Channel Display indicates an

Error Condition detected by the unit microcontroller.

Sample conditions include:

• Channel Selector Entry does not match the channel

number on which the unit is operating, the display

will flash for 30 seconds and then revert back to the

previous CH entry

• E1 is displayed if the Input VCO is Not Locked

• E2 is displayed if the Output VCO is Not Locked

800-523-6049 |

Operating Mode Selection

UP or

DN buttons to select the desired mode:

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DN buttons for approximately 5 seconds.

CORRECT SUGGESTION

The User should perform the following steps to correct an

Error Condition:

1. Check that the Channel Display is set to the desired

channel & reset as appropriate.

2. Check that the unit is set to the appropriate desired

operating mode.

3. Verify the unit output on a spectrum analyzer.

4. Disconnect and reconnect power to the unit.

If an error condition continues to be displayed, unit should

be replaced and serviced.