|
| Possible Causes |
Amplifier does not power up and the front LED | 1. | Power cord not connected at the rear “master” |
does not turn on. | AC receptacle. | |
|
|
|
No sound out of all channels. | 1. | Load connections not checked with LDS switch. |
| Make sure switch is set to OFF to complete the | |
| procedure. | |
| 2. | Trigger mode switch set incorrectly. |
| 3. | Music source not turned on. |
|
|
|
No sound out of channels 1, 2, 3 and 4. | 1. | Power cord not connected at the rear “slave” |
| AC receptacle. | |
|
| |
Does not enter power standby mode under music | 1. Trigger Mode Switch may be incorrectly set to | |
trigger mode. | ON, switch it to MUSIC to correct. | |
| 2. | Leak through signal or noise from a preamp |
| keeps the amp on. You may need to switch off the | |
| preamp completely or try 3 and 4 below. | |
| 3. | System ground current may enter the 7/2100A |
| or 5/5210A via the signal cable. Earth ground the | |
| preamp or the source CD player/tuner to bypass | |
| the ground current from entering the power ampli- | |
| fier. | |
| 4. | Insert an isolation transformer with each signal |
| cable to break a noisy ground system. | |
|
|
|
No sound from bridged channels. | 1. | Signal is not applied to the input of the even |
| numbered channels. | |
|
|
|
Low power from bridged channels. | 1. | Speaker not connected between the related two |
| red speaker posts. | |
|
|
|
Low bass | 1. | Speakers may be connected out of phase. |
|
|
|
6