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Step-by-step guide for verifying system functionality and operation.
Instructions for partial and complete disassembly of the master station.
Procedures for operating and testing the master station using bench equipment.
Common problems, their causes, and suggested troubleshooting steps.
Guidelines for aligning the AM and FM sections of the radio.
Overview of available remote speaker models and their features.
Instructions for installing the Model 2570 inside remote speaker station.
Instructions for installing the Model 2571 outside door speaker station.
Installation steps for the 2572 with controls on the speaker panel.
Installation steps for the 2572 with the control in a remote location.
Describes wiring connections for power, remote stations, chimes, and antennas.
Instructions for mounting brackets and installing the master unit into the wall frame.
List of transistors used in the system with part numbers and descriptions.
Continuation of the transistor parts list.
Continuation of transistor parts from page 14.
Lists diodes and capacitors used in the system with part numbers.
Lists controls and resistors used in the system.
Continuation of controls and resistors from page 17.
Lists transformers, coils, speakers, and miscellaneous components.
Lists parts changed or added in late production units.
Parts list changes specific to chassis number 561C.
Parts list changes specific to chassis number 561D.
Lists capacitors, resistors, transformers, coils, and miscellaneous for the tuner.
Table of average DC voltages for transistors in FM mode.
Diagram showing component placement on the amplifier P/C board.
Identifies connections on the foil side of the amplifier P/C board.
Diagram showing component placement on the power supply P/C board.
Identifies connections on the foil side of the power supply P/C board.
Diagram showing component placement on the FM tuner P/C board.
Identifies connections on the foil side of the FM tuner P/C board.
List of transistors used in the amplifier section.
Lists resistors and capacitors for the amplifier section.
Lists component combinations and power supply parts.
Lists transistors and resistors for the tuner section.
Lists variable capacitors, transformers, and coils for the tuner.
Part number for the complete FM tuner assembly.
Lists recent part changes, additions, and removals.
Average DC voltage chart for transistors during intercom operation.
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General