Instructions for retrofitting kit
Transformer NRS 90189
For balanced output (output level: 0 dBu or +6 dBu)
Installation instructions for the UV 300:
1.
Loosen the 4 screws on the rear side of the PCB and pull the 3 plugged knobs from the volume
controls and the rotary switch. Now the PCB can be turned down for retrofitting.
2.
If the holes of the soldering eyelets for the transformer are soldered, the tin solder must be sucked
off.
3.
The 0 ohm resistors must be soldered out or cut with a diagonal cutter.
4.
Plug the output transformer (DCN 337387) into the provided drill holes and solder. Pay attention to
the right polarity: The colour point at the transformer denotes the
transformer pin 1.
5.
After soldering the transformer, mount the PCB to the front panel, tighten the screws and plug the
knobs onto the potentiometer axes.
