Owner's Manual
Table Of Contents
- Owner's Guide
- Important Safety Instructions
- Table of Contents
- Introduction
- Placement and Ventilation Guidelines
- AC Mains Voltage
- Rack Mounting
- Audio Input and Output Connections
- Turn On Options
- Front Panel Operation
- Technically Speaking
- Design Overview
- Problems and Remedies
- If You Require Assistance or Warranty Repair
- Specifications
17
Problems and Remedies
Unit will not turn on
• Check the setting of the Turn On Options switch. (The front panel On-Off
button will be disabled if this switch is set to Audio or 12V)
• If using Audio Turn on, try increasing the sensitivity of the audio trigger by
turning the audio threshold knob to the “Quieter” position.
• Check that the rear panel power switch is on and that the AC power is live.
No sound from speakers
• Check that input cables and speaker wires are secure at both ends.
• Make sure the surround preamp is switched to the correct input.
• Is the Hi-Temp light illuminated? All five blue channel indicators should be
illuminated. Check for excessive temperature, short-circuited speaker wires,
very low impedance speaker load, and inadequate ventilation.
Background Hum or Hiss
• If you have cable or satellite TV, try disconnecting the incoming TV or satellite
cable; if the hum is eliminated you will need a Cable TV Ground Isolator or
contact your TV service provider for assistance.
• Move audio cables and AC cords apart from each other.
• Try different routes for the audio cables and AC cords.
• Make sure plastic insulating shoulder washers are used if unit is rack mounted.
Overheating
• Remove any nearby external sources of heat such other audio equipment or
heaters.
• Increase ventilation around the A 52+.
• Check speakers for faults