4detailed installation, I. set up and installation – Coda 01 User Manual
Page 5
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
22
22
47
47
100
100
1000
1000
1000 PF
1000 PF
200 PF
200 PF
100 PF
100 PF
50 PF
50 PF
ON
ON
I. Set up and Installation
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.
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.
4
DETAILED INSTALLATION
LOW
HIGH
LOW
HIGH
PHONO STAGE
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.