Stereo to Dual Mono | Level Potentiometer |
Toggle Switch |
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Resistor R42
Figure 10. Front View, Showing the Location of Resistor R42
4.Identify resistor R42 at the front of the bottom circuit board between the Stereo to Dual Mono toggle switch (to the left) and the Level potentiometer (to the right). The resistor is shown in the white box in figure 10.
5.Remove the resistor using a pair of diagonal cutters to clip the wires attaching it to the circuit board.
6.
Troubleshooting
Under different circumstances, the front panel LED lights green or amber to provide diagnostic information.
Amplifier Fails to Exit | Standby Mode Promptly | |||
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| Power LED |
| Problem Description | Problem Solution |
| Color |
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| Amber |
| No output signal. | No input detected: verify that there is an |
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| input signal. |
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| If a signal is present, raise the level of the |
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| source signal. |
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| Green |
| No output signal. | The amplifier may be in mute mode. Check |
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| the Remote port. |
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| Green or |
| Slow to exit standby mode | The input signal may be too weak. Raise the |
| Amber |
| when a signal is present. | level of the source signal. |
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Amplifier Enters Standby Mode Too Early
Power LED | Problem Description | Problem Solution |
Color |
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Green or | Enters standby mode | The input signal may be too weak. Raise the |
Amber | early. | level of the source signal. |
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MPA 152 Plus • Setup and Operation | 13 |
