B&K 1794 PS-PREG-1791-0503 PCB Assly, SW1 Grey Colour CAP for Push Switch SW2 SW3

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1.L1791-FP-CNT-0603 PCB ASSY

Reference

Part

Reference

Part

Designator

Description

Designation

Description

CONNECTORS

 

 

 

J1

J2.54 - 3MSL, 3 PIN SIL 2.54mm ST LOCK MALE

J1

J2.54 - 3FSL, 3 PIN SIL 2.54mm ST LOCK FEMALE

CLAMPS

 

 

 

SW1

SINGLE PUSH SWITCH MTG. CLAMP

 

SW2

DOUBLE PUSH SWITCH MTG. CLAMP

 

SW3

DOUBLE PUSH SWITCH MTG. CLAMP

 

SWITCHES

 

 

 

SW1

GREY COLOUR CAP FOR PUSH SWITCH

 

SW2

GREY COLOUR CAP FOR PUSH SWITCH

 

SW3

GREY COLOUR CAP FOR PUSH SWITCH

 

2.PS-PREG-1791-0503 PCB ASSLY

Reference

Part

Reference

Part

 

Designator

Description

Designation

Description

RESISTORS

 

 

 

 

R1

3K3, 2W, MOR

R15

100K, 0.25W, 5%, MFR

R2

270E, 2W, MOR

R16

39K, 0.25W, 5%, MFR

R3

324E, 0.25W, 5% MFR

R17

10K, 0.25W, 5%, MFR

R4

82K, 0.25W, 5% MFR

R18

10K, 0.25W, 5%, MFR

R5

10K, 0.25W, 5% MFR

R19

3K9, 0.25W, 5%, MFR

R6

180K, 0.25W, 5% MFR

R20

390E, 0.25W, 5%, MFR

R7

8K2, 0.25W, 5% MFR

R21

1K5, 0.25W, 5%, MFR

R8

330K, 0.25W, 5% MFR

R22

4.7E, 0.25W, 5%, MFR

R9

180K, 0.25W, 5% MFR

R23

3K9, 0.25W, 5%, MFR

R10

4K7, 0.25W, 5% MFR

R24

15E, 0.25W, 5%, MFR

R11

820E, 0.25W, 5% MFR

R25

10E, 0.25W, 5%, MFR

R12

6K8, 0.25W, 5% MFR

R26

10E, 0.25W, 5%, MFR

R13

12K, 0.25W, 5% MFR

R27

270E, 2W, MOR

R14

10K, 0.25W, 5% MFR

 

 

 

CAPACITOR

 

 

 

 

C1

33µF, 50V ELE

C5

0.1µF, 63V

 

C2

4.7µF, 50V ELE

C6

470µF, 50V, ELE

C3

2.2µF, 50V ELE

C7

0.1µF, 230V AC

C4

1µF, 63V ELE

 

 

 

DIODES

 

 

 

 

D1-22

1N4007 ( 200V / 1A )

 

 

 

CONNECTORS

 

 

 

 

J1

J2.54-6MSL, 6 PIN SIL 2.54mm LOCK MALE

 

J1

J2.54-6MSL, 6 PIN SIL 2.54mm LOCK FEMALE

 

J2

J2.54-4MSL, 4 PIN SIL 2.54mm LOCK MALE

 

J2

J2.54-4MSL, 4 PIN SIL 2.54mm LOCK FEMALE

 

J3

J2.54-5MSL, 5 PIN SIL 2.54mm LOCK MALE

 

J3

J2.54-5MSL, 5 PIN SIL 2.54mm LOCK FEMALE

 

27

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Contents BK Precision Limited Two Year Warranty Table of Contents Section General Information Description Output ON/OFF SwitchLimit Setting Remote Programming With External 5K PotSection Specifications Section Installation Input TAP Selection for 230V Operation Repackaging for ShipmentSection Operating Instructions Readjust the current limit in the remote sensing mode Output Capacitance Reverse Voltage LoadingReverse Current Loading Operators Safety Summary USE the Proper Power CordTerms in this Manual Terms AS Marked on Equipment Do not Service Alone Servicing Safety SummaryFor Qualified Service Personnel only USE Care When Servicing with Power onSection Service Instruction General Trouble Shooting TechniquesServicing shall be done only by Qualified personnel Repairs & Maintenance Page REF. PCB no PIN no Parts Ordering & ReplacingPage Page Fault Finding Procedure Fuse BlowsFuse Blows Unregulated O/P Voltage Unregulated O/P VoltageNo Output Voltage No O/P VoltageNo DPM Indication No DPM IndicationDPM not Read Unit not Take Current Unit not Take CurrentUnit Directly Goes to CC Unit Directly Goes To CCNo Current Control No Current ControlPoor Line Regulation Poor Line RegulationPoor Load Regulation CV, CC, LED not GlowPoor Load Regulation External Programming not OK Remote Sense not OKExternal Programming Not OK 1KPF/100V, Disc Section Part List & SchematicsL1791-FP-CNT-0603 PCB Assy 2P2W SW Push ButtonSW1 Grey Colour CAP for Push Switch SW2 SW3 PS-PREG-1791-0503 PCB AsslyDPM/01 REV 01 X PS-AUX-DC-L1791-0503 PCB Assly PS-PWR-L1791-0703A PCB AsslyFront Panel Assly Main Chassis AsslyBack 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 Service Information Precision CorpPrecision Corp