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6 Error Messages
35
PT 4500
Error Messages Problem Remedy
Err.>rF< PLL error. (Receiver unable to lock on
to selected frequency.)
1. Press setup switch briefly and set
different frequency.
2. If problem persists, contact your
nearest AKG Service Center.
Err.>SYS< Frequency settings cannot be changed. 1. Switch power to transmitter OFF and
back ON after about 10 seconds.
2. If problem persists, contact your
nearest AKG Service Center.
Err.>USr< Last setting cannot be loaded. 1. Set frequency again.
2. If problem occurs frequently, contact
your nearest AKG Service Center.
Err.>FrE< Frequencies cannot be selected from
Frequency screen.
1. Continue with previous setting.
2. Press setup switch briefly and set
frequency from Preset screen.
3. If problem occurs frequently, con-
tact your nearest AKG Service Cen-
ter.
Err.>PrE<
(comes up on powering up or when try-
ing to select a Preset and appears on
receiver, too.)
All Presets defective; no Preset selec-
table.
1. Use frequency screen to set fre-
quency
(section 3.6.2).
2. Contact your nearest AKG Service
Center.
Err.>PrE<
(comes up on powering up only and
does not appear on receiver.)
One or more Presets defective. 1. You can select Presets, but note
that defective Presets will not be
available.
2. Contact your nearest AKG Service
Center.
Err.>rPt< No remaining battery life data available. 1. Check batteries: replace standard
rechargeable batteries immediately
with dry batteries or AKG BP 4000
battery pack.
2. Remove and reinsert BP 4000 bat-
tery pack.
3. If error persists, charge battery
pack.
4. If error occurs with several different
battery packs or types of dry bat-
teries, contact your nearest AKG
Service Center.
Err.>AF< No signal at audio input. 1. Check microphone element.
2. Mount microphone element.
3. Briefly push setup switch.
4. If error occurs frequently, contact
your nearest AKG Service Center.
Rec.>Acc< BP 4000 battery pack needs recovery. • Run recovery cycle. Refer to User
Manual of optional CU 4000
charger.