In Case Of Trouble
Hum and/or Noise | ¥Is the signal source working correctly? |
| ¥Are the systemÕs electrical and audio ground connections |
| proper? |
| ¥Are there any |
| circuit, such as light dimmers, motors, etc.? If so, it |
| may be necessary to run a separate power line for the |
| audio equipment. |
Thin or Muffled Sound | ¥Are the loudspeakers all working properly, or are one or |
| more drivers defective? |
| ¥In a |
| network, are all outputs from the network operating |
| properly? Are all loudspeakers properly connected? |
| ¥Are both sides of a balanced input solidly connected? Is |
| the low side of the amplifier input connected to Audio |
| Ground with an unbalanced input connection? |
Audio Cuts In and Out | ¥Is the signal at the amplifier input terminals good? |
| ¥Are all the input and output wires solidly connected? |
| ¥If the sound cuts out for a minute or two and then returns, |
| is the amplifier overheating and cycling through |
| thermal protect mode? If so, check for short circuits in |
| the output wiring or excessive ambient temperature. |
Channel B Shows Heavy | ¥The two black output binding posts have been connected |
Clipping, Channel A is OK. | together. These terminals are not at the same |
| |
| potential and cannot be connected without special |
| wiring consideration. See page 10. |
Matica 500/900 Reference Manual | 17 |