B&K 1794 instruction manual Back Panel Layout

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BACK PANEL LAYOUT

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1.	INPUT FUSE HOLDER	3.	INT / EXT PROGRAM TERMINAL	5.	COOLING FAN.
2.	MAINS CORD.	4.	PROTECTIVE GROUND	6.	VENTILATION.

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Contents BK Precision Limited Two Year Warranty Table of Contents Remote Programming With External 5K Pot Output ON/OFF SwitchLimit Setting Section General Information DescriptionSection Specifications Section Installation Repackaging for Shipment Input TAP Selection for 230V OperationSection Operating Instructions Readjust the current limit in the remote sensing mode Reverse Current Loading Output CapacitanceReverse Voltage Loading Terms in this Manual Terms AS Marked on Equipment Operators Safety SummaryUSE the Proper Power Cord USE Care When Servicing with Power on Servicing Safety SummaryFor Qualified Service Personnel only Do not Service AloneServicing shall be done only by Qualified personnel Section Service Instruction GeneralTrouble Shooting Techniques Repairs & Maintenance Page Parts Ordering & Replacing REF. PCB no PIN noPage Page Fuse Blows Fault Finding ProcedureFuse Blows Unregulated O/P Voltage Unregulated O/P VoltageNo O/P Voltage No Output VoltageNo DPM Indication No DPM IndicationDPM not Read Unit not Take Current Unit not Take CurrentUnit Directly Goes To CC Unit Directly Goes to CCPoor Line Regulation No Current ControlPoor Line Regulation No Current ControlPoor Load Regulation Poor Load RegulationCV, CC, LED not Glow External Programming Not OK External Programming not OKRemote Sense not OK 2P2W SW Push Button Section Part List & SchematicsL1791-FP-CNT-0603 PCB Assy 1KPF/100V, DiscPS-PREG-1791-0503 PCB Assly SW1 Grey Colour CAP for Push Switch SW2 SW3DPM/01 REV 01 X PS-PWR-L1791-0703A PCB Assly PS-AUX-DC-L1791-0503 PCB AsslyBack Trough Assly Front Panel AsslyMain Chassis Assly Front Panel Layout Back Panel Layout TOP View Bottom View of Model 1790 Front Panel Control PCB of 1790 Power Module PCB of 1790 PRE Regulator / AUX. P/S PCBs 1790 Precision Corp Service InformationPrecision Corp