Device description of the amplifier K99
PRINCESS – Edition: 17.02.2005
50
FIELD SERVICE MANUAL
12 Amplifier K99
12.1 Device description of the amplifier K99
The amplifier K99 is optimised for universal use in Deutsche Wurlitzer GmbH music machines. Great
importance had been attached for an easy handling and stand alone function without the S&CC unit.
The output power is designed for the typical used internal speakers at Deutsche Wurlitzer GmbH
machines, under normal circumstances reaching an impeccable volume level.
Standard equipment:
! Hybrid power stage technology, short circuit and over temperature protected
! 2 inputs (stereo): CD and tape
! 1 mono input for optional micro kit
! Volume control with 2 pots onboard
! Volume control possible with pots and / or IR at the same time. The pot used at last determines
the volume.
! Bass and treble control with pots
! BGM volume reduction, controllable with pot
! Automatic volume correction (AVC), switchable
! 2 channel operation switchable, RH = internal speakers, LH = external speakers
! Status display with 7segment display
! Independent controllable RCA output to connect external amplifiers
! For use with the old and the new changer mechanism.
Optional:
! Remote control of F91 with large distance range. Functions: track selection / volume chan. 1 / vo-
lume chan. 2 / mute (toggle) / cancel
! Volume control with two pots in the wired remote box accessible from the machine rear wall, or
external. Cancel button and mute button (with toggle function).
! Output transformer (like F91)
! Microphone kit
12.2 Technical data
General USA / Canada
Supply 100v - 240v 117v
Mains frequency 50cps - 60cps 60cps
Input voltage CD typ. 1.2v typ. 1.2v
Input voltage tape 300mv 300mv
Output voltage pre amplifier <=1veff <=1veff
Output power 2 x 55w (rms) 2 x 55w (rms)
Output impedance min. 4ohm min. 4ohm
Transmission range 20cps - 20,000cps 20cps - 20,000cps
Distorsion factor < 1% < 1%
Noise level depending on the adjusted volume of the jukebox loudness levels of more
than 70 dB(A) can be reached.
To Next Page
Loading...
