Soundcraft CPS275 Uživatelský manuál

SOUNDCRAFT CPS250CPS275Console Power SupplyUser and Technical ManualIMPORTANT: please read this manual carefullybefore connecting your Soundcraft cons

Recommendations for InstallationThe CPS250/CPS275 power supply is provided with front panel fixing holes for 19"rack-mounting and will occupy 2U

formed if this chassis and the power supply chassis are in electrical contact throughthe fixing rails they share in the rack. To avoid this situation

88.10mm9.52mm5.95mm5.95mm350.50mm427.56mm482.60mmDimensionsPSU Linking (CPS275 Only)Console(Only one rail shown.)LinkConsole(Only one rail shown.)Lin

Technical SpecificationTechnical Specification 9

Technical SpecificationMAINS INPUT VOLTAGE RANGE:85/100/115/230 V AC +10%/-15% @ 50/60HzRATED INPUT POWER (Max): CPS250 - 350 WATTS CPS275 - 450

Technical DescriptionServicing should only be carried out by a competentservice engineer. SEE THE WARNINGS STARTING ON PAGE 17.Technical Description 1

Circuit Diagram (1)12 Technical Description

Circuit Diagram (2)Technical Description 13

Circuit DescriptionThe CPS250 and CPS275 power supplies provide +/-17V at 4 Amps and 5.25 Ampsrespectively. Both give +5V at 1 Amp, and +48V at 0.3 Am

The constant-current protection system works in the standard way; when an attemptis made to draw excessive current, the output voltage is reduced so t

© Harman International Industries Ltd. 1997All rights reservedParts of the design of this product may be protected by worldwide patents.Part No. ZM

The +5V Supply.Max current rating 1.0 Amps. This supply is primarily intended for powering consoleinternal computers; it also powers the cooling fan.

Servicing SAFETY.These safety notes are directed to those testing and repairing this power supply. Legal requirements mean that we must not encourage

FAULTFINDING NOTES. +/- 17V RAILS. If one side of the +/-17V supply is not working, the mutual shutdown system willclose down both sides of the suppl

Reassembly is simply a reverse of the procedure above. Particular care should betaken when fixing the regulators, ensuring that the pins are not bent

PCB Layout20 Technical Description

Output PinoutsTechnical Description 21

22 Technical Description

Table of ContentsIntroduction 1Introduction 2Short-circuit Protection 2Mains Voltage Selection 3Replacing Mains Fuse 3Warranty 4Recommendations For In

ii

IntroductionIntroduction 1

IntroductionWARNING: THIS APPARATUS MUST BE EARTHEDThe CPS250/CPS275 are linear power supplies which, like other linear supplies,produce DC voltages

MAINS VOLTAGE SELECTIONSpecial attention should be paid to the following information:Do not change the voltage setting without firstturning the unit o

1Soundcraft is a trading division of Harman International Industries Ltd.End User means the person who first puts the equipment into regular operatio

Recommendations ForInstallationFOR UK USERS ONLYThe wires in the mains lead are coloured in accordance with the following code:Green and Yellow:Blue:B