Do you have a question about the Crown PSA-2 and is the answer not in the manual?
General overview of the service manual and its intended audience.
Crown warranty policies and contact for service.
Detailed electrical and performance specifications for the PSA-2 amplifier.
Specific performance metrics for PSA-2 in stereo mode.
Specific performance metrics for PSA-2 in monaural mode.
Specifications for the optional balanced input module.
Detailed electrical and performance specifications for the SA2 amplifier.
Specific performance metrics for SA2 in stereo mode.
Specific performance metrics for SA2 in monaural mode.
Identification and layout of front and rear panel controls and connectors.
Overview of different PSA-2 model variations and features.
Graphical representations of amplifier performance characteristics.
How to use the parts list and procedures for ordering replacement parts.
Explanations for interpreting schematic diagrams and component designations.
Lists of components for specific internal modules like power supply and relay.
Lists of parts for the main chassis, front, and back panels.
Lists of components for major assemblies like transformers and capacitors.
Overview of the maintenance section and its purpose.
Recommended tools and equipment for servicing the amplifier.
Best practices and methods for soldering electronic components.
General strategies and tips for diagnosing and resolving amplifier issues.
Crucial safety procedure for discharging power supply capacitors before work.
Step-by-step instructions for disassembling the unit and its modules.
Guidance on putting the unit back together and replacing parts.
Procedures for testing voltages, signals, and making adjustments.
Instructions for changing the amplifier's high/low pass filter cutoff frequencies.
Procedures for converting the unit to operate on different voltage standards.
Functional overview of the amplifier's signal path and stages.
Detailed explanation of how the amplifier's circuits and features work.
List of official modifications and technical updates for the amplifier.