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B&K
1794
instruction manual
Power Module PCB of 1790
Models:
1794
1
39
42
42
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42 pages
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Troubleshooting
Specification
Install
Section Part List & Schematics
Warranty
Maintenance
Fault Finding Procedure
Limit Setting
Safety
Power Source
Page 39
Image 39
POWER MODULE PCB OF 1790 / 1791
36
Page 38
Page 40
Page 39
Image 39
Page 38
Page 40
Contents
BK Precision
Limited Two Year Warranty
Table of Contents
Remote Programming With External 5K Pot
Output ON/OFF Switch
Limit Setting
Section General Information Description
Section Specifications
Section Installation
Repackaging for Shipment
Input TAP Selection for 230V Operation
Section Operating Instructions
Readjust the current limit in the remote sensing mode
Output Capacitance
Reverse Voltage Loading
Reverse Current Loading
Operators Safety Summary
USE the Proper Power Cord
Terms in this Manual Terms AS Marked on Equipment
USE Care When Servicing with Power on
Servicing Safety Summary
For Qualified Service Personnel only
Do not Service Alone
Section Service Instruction General
Trouble Shooting Techniques
Servicing shall be done only by Qualified personnel
Repairs & Maintenance
Page
Parts Ordering & Replacing
REF. PCB no PIN no
Page
Page
Fault Finding Procedure
Fuse Blows
Fuse Blows
Unregulated O/P Voltage
Unregulated O/P Voltage
No O/P Voltage
No Output Voltage
No DPM Indication
No DPM Indication
DPM not Read
Unit not Take Current
Unit not Take Current
Unit Directly Goes To CC
Unit Directly Goes to CC
Poor Line Regulation
No Current Control
Poor Line Regulation
No Current Control
Poor Load Regulation
CV, CC, LED not Glow
Poor Load Regulation
External Programming not OK
Remote Sense not OK
External Programming Not OK
2P2W SW Push Button
Section Part List & Schematics
L1791-FP-CNT-0603 PCB Assy
1KPF/100V, Disc
PS-PREG-1791-0503 PCB Assly
SW1 Grey Colour CAP for Push Switch SW2 SW3
DPM/01 REV 01 X
PS-PWR-L1791-0703A PCB Assly
PS-AUX-DC-L1791-0503 PCB Assly
Front Panel Assly
Main Chassis Assly
Back Trough 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 Information
Precision Corp
