Krell Industries Evolution Error Codes, Diagnostic Code, Possible Condition, Course of Action

Models: Evolution

1 33
Download 33 pages 17.45 Kb
Page 25
Image 25
Error Codes

(SECTION SIX: Troubleshooting continued)

Error Codes

In the event of a problem, the power status indicator (2) will flash error code(s) in red. Errors are identified by a sequence of 3, 4, or 5 flashes. There is a pause between codes, and in the case where there is only one error code, the same code is repeated.

 

 

 

 

 

 

Diagnostic Code

Possible Condition

Course of Action

 

 

 

 

 

 

3 flashes

Excessive current draw

Check loudspeaker and

 

 

 

cables for short circuits.

 

 

 

 

 

 

 

 

If you are driving more

 

 

 

than one loudspeaker

 

 

 

 

 

 

 

 

per channel, check that

 

 

 

the combined load does

 

 

 

 

 

 

 

 

not drop below 2 Ohms.

 

 

 

The power breaker

 

 

 

 

 

 

 

 

switch must be shut off

 

 

 

to reset the fault condi-

 

 

 

tion.

 

 

 

 

 

 

4 flashes

Excessive temperature

Allow the amplifier to

 

 

 

cool, and increase venti-

 

 

 

lation. If the problem

 

 

 

 

 

 

 

 

persists, please call the

 

 

 

factory.

 

 

 

 

 

 

 

 

 

 

 

5 flashes

Excessive DC at input

Check the preamplifier

 

 

 

output and source out-

 

 

 

puts for excessive DC

 

 

 

voltage.

 

 

 

If you are using a tube

 

 

 

preamplifier, use only

 

 

 

the single-ended inputs,

 

 

 

as they are capacitor

 

 

 

coupled.

 

 

 

 

 

25

Page 25
Image 25
Krell Industries Evolution manual Error Codes, Diagnostic Code, Possible Condition, Course of Action