DETAILED INSTALLATION | 4 |
I. Set up and Installation
WARNING: NEVER OPERATE THIS UNIT WITH THE TOP COVER REMOVED. NEVER MAKE ANY INTERNAL ADJUSTMENTS WHILE THIS UNIT IS CONNECTED TO AN AC POWER SOURCE.
1.If the phono stage has been incorporated in the preamplifier it will be necessary to set the gain as well as the loading for each channel prior to installing the unit. With the unit unplugged, remove the cover using the supplied Allen key. The default value for the gain is “Low", such as would be used with a high output Moving Coil or a Moving Magnet cartridge. The “High” setting will provide an additional 20dB of gain, if necessary, for lower output cartridges.
LOW |
HIGH |
LOW
PHONO STAGE
HIGH
2.In order to set the input loading, it will be necessary to toggle the DIP switches which are located on the main board of the preamplifier. Each one of these switches connects a resistor or capacitor in parallel with the input and so adjusts the load value. The default values are 47k Ohms and 50pF. Refer to the diagram below, which is repeated inside the unit, to determine the values which need to be switched in for your cartridge. Replace the cover after setting the switches.
1000 PF
200PF
100PF
50PF
22 Ω
47 Ω
100 Ω
1000 Ω
ON
22 Ω
47 Ω
100Ω
1000 Ω
1000 PF
200 PF
100 PF
50 PF
ON
