J D S L A B S . C O M
8
T R O U B L E S H O O T I N G
Objective2 does not turn on, or power LED is on but output is silent
Cause:
Wrong or missing power adapter
Solution:
Connect proper AC adapter
Distortion at high gain
Cause:
Objective2 ‘s volume control resides between its input and output stages.
Some headphones can overdrive the Objective2’s input stage. Refer to NwAvGuy’s
blog for thorough explanation.
Solution:
Use low gain or reduce DAC volume at computer.
P O W E R A D A P T E R S
ATTENTION:
Incorrect power adapters can result in capacitor
explosion hazards and device damage. Only use the power
adapter included with your O2+ODAC:
Type: AC-to-AC Transformer
Output Voltage: 15VAC
Current: Minimum 500mA
Connector: 2.1x55.mm (ID x OD)
No sound in one channel
Cause:
Bad output cable, or incorrect computer settings
Solution:
Check balance settings; try another output cable. Some Mac OS X systems
will pan audio to Left channel upon first connection of ODAC. User must restore
balance to center.
Distorted output or “harsh” treble (constant or intermittent)
Cause:
Weak USB power, or bad USB cable
Solution:
Use a powered USB hub or different computer; try another USB cable
