AKG Acoustics C 420 manual Troubleshooting

Page 10

6 Troubleshooting

Problem

Possible Cause

Remedy

 

 

 

1. Microphone does

No supply voltage.

C 420: Check phan-

not work:

 

tom power source.

 

 

C 420 B/lock: Check

 

 

batteries in the

 

 

B 29 or PT 300.

 

 

C 420 L: Check bat-

 

 

teries in the body-

 

 

pack transmitter.

 

 

 

2. Headset does not

Headband is not ad-

Adjust headband

fit securely;

justed correctly.

exactly as described in

microphone arm

 

section 3.1, referring

wobbles:

 

particularly to fig. 9.

 

 

 

3. Loud pop, wind,

Microphone sits too

Align microphone

and/or breath

close to mouth or

sound entry with

noise:

nose.

corner of mouth and

 

 

move microphone just

 

 

far enough away from

 

 

mouth and nose to

 

 

stop breath noise.

 

 

 

4. Microphone

Internal or W 44

1. Clean W 44 wind-

sound becomes

external windscreen

screen with soap

duller by and by:

when soiled

suds.

 

attenuates high fre-

2. Refer cleaning of

 

quencies.

internal windscreen

 

 

to nearest AKG

 

 

Service Center.

 

 

ATTENTION: Do not

 

 

open microphone

 

 

case yourself. This

 

 

would void the war-

 

 

ranty.

 

 

 

20

 

 

Image 10
Contents 420 Description Interfacing Interfacing Connecting CablesOperating Notes Behind-the- neck headbandMicrophone Readjusting Temple PiecesAligning Strain ReliefSpecifications Cleaning Troubleshooting Troubleshooting AKG ACOUSTICS, U.S