Wurlitzer OMT F91, Operating Instructions Manual

Page: 22 / 44

External speaker connection
OMT CD – Edition: 13.08.2007
20
6.7 External speaker connection
The amplifier can operate in two different
modes. The normal operation mode
reproduces the music in normal stereo sound.
So external speakers can be added to each
channel.
The so-called 2Channel mode uses both
stereo channels like separate mono amplifiers
so that the sound can be reproduced in
different rooms but then in mono only.
The amplifier may not be loaded with more
than 4 ohms per channel (less ohms means
more load!). On an overload it switches itself
off. After a certain cool down time it switches
itself on. So if you do not eliminate the reason
for the overload the amplifier produces
continuously volume dropouts.
Fuse Failure
Main fuse T 3.15, res. T8 A for 110/117 V. No illumination, machine completely dead.
Fuse F1: T4A supply 30V ~
The digital digit on the CD-control is dark. Power supply for
CD player and control unit is interrupted. Credit circuit via
LED M is interrupted. If credits are still in memory or free
play is programmed; a CD will be placed on turntable but is
not spinning.
Fuse F2: T4A supply 26V ~
Fuse F3: T4A supply 26V ~ The colour tubes of the One More Time do not rotate, the
heating of the bubble tubes is off - no bubbles will appear.
Possibly defect of the power stage of the amplifier.
Fuse F4: T4A 12 V= SCC unit dead - digital display dark (except red LED M still
lighting up on coin insertion). The LED’s K and Z on the
SCC unit are dark. No initialisations run after power ON.
The status display on the amplifier is dark.
CAUTION
TO REDUCE THE RISK
OF FIRE REPLACE ONLY
WITH SAME TYPE AND
RATING FUSE
B
ass
T
reble
BGM
M
S
ONO
TEREO
ANAL HANNEL
TEREO
2-K / 2-C
S
S
F
ICHERUNG
USE
F1 - F4
100-240 V
50Hz/60Hz 117 V
60Hz
3,0 AMP
250 V AC
SLOW BLOW T 4 A
30V~
AC
F1
26V~
AC
F2
26V~
AC
F3
12V=
DC
F4
I L
NTERNER AUTSPRECHER
NTERNAL PEAKER I S
O O
PTION PTION
R L
EL
ES
8/
8
0
W
XTERNER
A
UTSPRECHER
XTERNAL
PEAKER
W
CD-T
CD-T RAFO
RANSFORMER
B -T UBBLE UBES
N
T
ETZTRAFO
RANSFORMER
E
E
RWEITERUNG
XTENSION
F
R C
ERNREGLER
EMOTE- ONTROL
RS 232
BGM
IR IR
NFRAR
O
T
-
EGLER
NFRARED-
EMO
TE
A
O
L R
USGANG
UTPUT
EC
D
IC
D
L R
INGANG
NPUT
E
E
300mV
XTRA
XTRA
E
300mV
I
L R
INGANG
NPUT
M
M
IKR
OFON
ICR
OPHONE
M
M
ECHANIK
ECHANISM
D A
R C
ECKEL BNEHMEN
EMOVE OVER
D A
R C
ECKEL BNEHMEN
EMOVE OVER
TAPE
MUTE
I
C 1
ntern
hannel
E
C
xtern
hannel
2
Verstärker K 99 0056041
Amplifier K 99 C-UL
0058484
3
4
2
AVC
RS232
MICRO
TAPE
UTE
A / D
NZEIGE ISPLAY
BGM
ok.
S / S
CHALTER WITCHES
A /O US FF
A /O
US FF
E /O IN N
E /O
IN N
A
A
VC
VC
MODE S
TEREO
2-K /2C
ANAL HANNEL
INPUT CD T APE
BGM
1
1
3
5
2
2
4
6
SEPARATE
NORMAL
AUTO
VOLUME
RS232
MUTE
HIGH LOW
PARALLEL
SERVICE
AUS/OFF
1