AKG PT 4000 Modo De Empleo página 24

4 Operating Notes
4.5 When to Replace Batteries
Refer to fig. 5.
4.6 Microphone Technique
4.6.1 C 417 L, CK 55 L
Lavalier Microphones
4.6.2 4.2 C 420 L, C 444 L
Head-worn Microphones
4.7 Multichannel Systems
4.8 Notes on Battery Care
5 Cleaning
6 Error Messages
Display Error Message
Err.>rF<
Err.>SYS<
Err.>USr<
Err.>FrE<
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2. Remove the color code cover (2) and remove the color code paper strip.
3. Remove the desired new paper strip (3) from the color code sheet and place the paper strip (3) in the
groove in the transmitter body.
4. Replace the color code cover (2).
5. Close the battery compartment door (1).
In LOCK mode, the display constantly indicates the current battery capacity as a string of bars below the
frequency readout.
If the "BATT" label starts flashing, a dash appears instead of the bars, and the status LED changes to
red, replace the batteries or charge the AKG BP 4000 battery pack as soon as possible.
You can check the remaining battery capacity at any time by turning the jog switch briefly to the left or
right one to three times (depending on the currently active screen). The battery capacity will be displayed
in hours and as a string of bars.
1. Fix the microphone to the H 40/1 lavalier clip or H 41/1 tie pin referring to the microphone's instruction
manual.
2. Clamp the microphone on your clothing as close as possible to your mouth.
Remember that gain-before-feedback will be the higher the smaller the distance between the micro-
phone and the mouth!
3. Make sure to aim the microphone at your mouth.
Refer to the user's manual of the respective microphone for instructions on how to use head-worn micro-
phones.
If reception on the selected carrier frequency is poor, use Auto Channel Setup on the receiver to find the
next clean Subchannel within the selected Frequency Group.
Should you find no clean Subchannel, use Auto Group Setup on the receiver to select a different Frequency
Group within the same Preset and selecet a new frequency for each transmiter and receiver.
1. If you know you won't be using the transmitter fo more than a week, remove the batteries or BP 4000
battery pack from the transmitter.
2. Make it a habit to charge the BP 4000 battery pack fully every time you used the transmitter for at
least one or two hours. This is a good way to prevent the battery pack from dying in the middle of the
next gig.
3. Always charge the BP 4000 battery pack fully if you stroe it outside the transmitter. This will maintain
the batery pack's capacity at a higher level for a longer time.
To clean the transmitter surfaces, use a soft cloth moistened with water.
The following error messages may appear on the display upon powering up or during operation:
Problem
PLL error. (Receiver unable to lock on to select-
ed frequency.)
Frequency settings cannot be changed.
Last setting cannot be loaded.
Frequencies cannot be set in Frequency
screen.
Remedy
1. Press jog switch briefly and set different
frequency.
2. If problem persists, contact your AKG
Service Center.
1. Switch power to transmitter OFF and back
ON after about 10 seconds.
2. If problem persists, contact your AKG
Service Center.
1. Set frequency again.
2. If problem occurs frequently, contact your
AKG Service Center. Display Error
Message Problem Remedy
1. Continue with previous setting.
2. Press jog switch briefly and set frequency
from Preset screen.
3. If problem occurs frequently, contact your
AKG Service Center.