Specifications

6 Troubleshooting
40 AKG IVM 4
Receiver Error Messages and
Warnings Problem Remedy
"REC.ACC" • When charging BP 4000, a rec-
ommended RECOVERY cycle
was not run. Remaining battery
life is not indicated.
• Press Jog switch briefly and run
RECOVERY cycle next time you
charge BP 4000.
"ERR.BAT" • Volume too high and battery
voltage too low. SPR 4 limiter is
automatically activated to avoid
premature power-down.
• Press Jog switch briefly to reset
limiter to last active mode. Re-
duce volume or replace batter-
ies/charge battery pack.
"LO BAT" • Battery/BP 4000 capacity lower
than 20%.
• Replace batteries/
charge BP 4000.
"NO RF" 1. Received signal level was too
low for a moment (dropout).
2. Radio signal still too weak after
10 seconds, warning comes up
again.
1. Press Jog switch briefly. (Warn-
ing disappears.)
2. Relocate transmitter/antenna. If
dropouts persist, mark and
avoid critical spots.
All other error messages
("ERR.XXX")
• Internal error. 1. Switch power to receiver OFF
and back ON after about 10
seconds.
2. Contact your AKG dealer as
soon as possible, even if prob-
lem appears to be corrected.
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IVM4_Hex_final_XP7:Layout 1 2/27/07 11:26 AM Seite 40 (Schwarz/Black Auszug)