DIGISYNTHETIC DP2200 - Control Panel; PROTECT Leds

CONTROLPANEL
FRONTPANELA.
DIGISYNTHETIC
R
DP3200
POWER
PROTECT
CLIP
SIGNAL
BRIDGE
ChannelA ChannelB
15
43
22
6
1.POWER:ON/OFFswitch
2.CHA\BLEVEL:Adjustthevolumeoffourchannels
Controloftheinputleveloftheexternalsignal:operateswithcontinual
valueswhichvaryfromfullyclosed(position--thesignalisnot
fedtotheamplifiersections)tofullyopen(position0dB-thesignalis
senttotheamplifiersectionsatthesamelevelasthatwithwhichitarrives
attheinput).Inotherwords,thiscontroloperatessanattenuatorofthe
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3.PROTECTLEDs
Protectionpilotlights.
IftheseLEDslightup,thisindicatesthatoneofthevariousprotections
safeguardingthedifferentsectionsoftheamplifierandtheloudspeaker
Enclosureshastrippedduetoanoperatingfault.Inthesecases,the
poweroutputisnormallyswitchedoffuntilnormaloperatingconditions
arerestored.
Thefollowingisadescriptionofalltheprotections:
1)THERMALPROTECTIONONTRANSISTOR:thisprotectionintervene
wheneverthereisanexcessiveriseintemperatureoftheinternal
heatsink.
4