Wurlitzer One More Time Vinyl, Operating Instructions Manual

Page: 17 / 42

Coin and credit programming
OMT VINYL – edition: 13.08.2007
15
14 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 2-Channel 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 drop-
outs.
The impedance of all external speakers per channel in ”Stereo” mode should not be less than 8
ohms, because the internal speakers represent a load of already 8 ohms per channel. If the amplifier
is operating in 2-Channel mode, the internal speakers are all connected to the RH channel (Channel
1); the LH channel (Channel 2) now applying to the screw terminals ”Externer Lautsprecher -
External speakers” may be loaded with max. 4 ohms.
The output power of the amplifier is approx. 55 watts (rms on max. 1% dist.) on a 4 ohms speaker
per channel, 18 watts to a 12 ohms speaker and approx. 9 watts to a 24 ohms speaker. That means,
that e.g., a 12 ohms speaker connected to the external channel at Dual Channel operation must be a
type of at least 18 Watts, otherwise the speaker is in danger of destruction at higher volumes. Note
that speaker groups like in hi-fi boxes may have, at certain frequencies, impedance much lower than
their rating. Make sure that all speakers are connected in correct polarity.
Position of the Stereo - Mono DIP switch (1), the
mode switch (2), the stereo - 2 channel switch (3)
and external speaker terminals (4).
CAUTION
TO REDUCETHE RISK
OF FIRE REPLACE ONLY
WITH SAMETYPE 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
E
L
E
S
8
/
80
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
I
R
I
R
NFRAR
O
T
-
EGLER
NFRARED-
EMO
TE
A
O
LR
USGANG
UTPUT
E
CD
IC
D
LR
INGANG
NPUT
E
E
300mV
XTRA
XTRA
E
300mV
I
LR
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
AVC
RS232
MICRO
TAPE
MUTE
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 STEREO 2-K /2C ANAL HANNEL
INPUT
CD
TAPE
BGM
1
1
3
5
2
2
4
6
I
C 1
ntern
hannel
E
C
xtern
hannel
2
Verstärker K 99
0056041
Amplifier K 99 C-UL
0058484
1
3
4
2
SEPARATE
NORMAL
AUTO
VOLUME
RS232
MUTE
HIGH LOW
PARALLEL
SERVICE
AUS/OFF