Heathkit GC-1107 - Setting Time and Alarm; Troubleshooting Chart

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Table of Contents4
Introduction4
Parts List5
Resistors5
Transistor-Integrated Circuits6
Switches - Insulators6
Step-By-Step Assembly9
Circuit Board Assembly10
12-Hour Display11
24-Hour Display11
Alternate Line Voltage Wiring16
120 Vac Wiring16
240 Vac Wiring16
Circuit Board Checkout18
Cabinet Assembly18
Initial Tests22
Instrument Tests22
Operational Tests22
Final Assembly24
Operation26
To Set the Time27
To Set the Alarm27
In Case of Difficulty28
General Troubleshooting Information28
Troubleshooting Chart29
Specifications30
Circuit Description31
Circuit Board X-Ray View32
Semiconductor Identification Charts33
Diodes33
Transistors33
Integrated Circuits33
Readout Tube35
Replacement Parts39
Technical Consultation39
Repair Service39

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Heathkit GC-1107 - Setting Time and Alarm; Troubleshooting Chart

Table of Contents