Position of fuses and plug connectors on the power amp board
PRINCESS – Edition: 17.02.2005
42
FIELD SERVICE M
A
NUAL
11.2
Position of fuses and plug connectors on the power amp board
WARNING!
A voltage of approx. +60V res. - 60V applies to the fuse terminals also a certain time af-
ter power off. Change the fuses with caution !
Usually the jukeboxes are fitted with fuses of DIN 41571 (5x20 mm) slow blow or medium blow. Slow
blow fuses of DIN standard bear the letter T (T = “Träge”) e.g. T 4/250 means T = slow blow, 4
amps, 250 V maximum operating voltage. Which fuses have to be used is printed on the power
transformer cover. Fast blow fuses (F = Flink) are unsuitable for the jukebox.
The fuse holders on the amplifier P.C.B. are capable to hold also fuses of 6x32 mm size.
Position of the plug connectors
P12 - jukebox speakers
P 3 - bubble tubes
P16 - power transformer
P 4 - CD sub transformer, CD player
P 9 - mechanism, Selection and Credit Computer
P 6 - option, coin interface
P6A - option
P 7 - service
Fuse
Failure
Main fuse T 3,15,res. T8 A for 110/117 V.
No illumination, machine completely dead.
Fuse Si1: T4A (T5A) +70V= L.H. channel
power stage
Fuse Si2: T4A (T5A) -70V= L.H. channel
power stage
No sound in the L.H. channel. Speaker relay is not activated,
green LED does not light.
Fuse Si301: T4A (T5A) +70V= R.H. ch. power
stage
Fuse Si302: T4A (T5A) -70V= R.H. ch. power
stage
No sound in the R.H. channel. Speaker relay is not activated,
green LED does not light.
Fuse Si100: T3,15A (T3A) supply -30 V=
The jukebox operates normal. The CD2 mechanism does not
use this voltage.
Fuse Si101: T3,15A (T3A) 30 V=
No initialisation run after power ON. Display working.
No function.
Fuse Si102: T3,15A (T3A) 12 V=
SCC unit dead - digital display dark (except red LED M still
lighting up on coin insertion).
The LEDs K and Z on the SCC unit are dark. No initialisation
run after power ON.
Fuse Si103: T3,15A (T3A) 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 pro-
grammed, a CD will placed on turntable but is not spinning. Af-
ter about one minute the CD is taken back..
If no credits in memory, no CD will be taken to turntable, the
display is flashing.
P12
P3
P16
P4
P9
P6
P6A
P7
Si1
Si2
Si301
Si302
Si102
Si100
Si101
terminal for
external
speakers
Si103
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