Heathkit IB-5281 - Page 4

Page 2
Introduction ......... 0.0. cece cee cee eee 3
Assembly Notes................ 0 cee eee eee ee 4
Parts List... 0... ccc cece eee eeees 7
Step-By-Step Assembly
Circuit Board Assembly ..................... 9
Range Switch Wiring ....................-. 19
Chassis Assembly and Wiring............... 21
Power Switch and Connector Wiring ........ 27
Initial Test and Adjustments veceeeeeeeuneveess 29
Final Assembly .......... 0... c ccc cece eee ee 33
Operation
Using the Bridge................ 0. c eee aees 35
Using an External Standard................. 35
In Case of Difficulty .................00 000s cee 36
Troubleshooting Chart ..................00. 37
Specifications 2.0... 0.0.0... cece cece eee eee 38
Circuit Description ...............00.000c ce eee 38
Circuit Board X-Ray View .............000000e 40
Semiconductor Identification Chart............ 41
Schematic ......... 0.0... cece eee eee eee Fold-in
Warranty ................. 0005 Inside Front Cover
Customer Service .............. Inside Rear Cover