Fosi Audio K4, Руководство пользователя

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Troubleshooting/QA
1: How do I power on the K4 Mini stereo DAC?
• Besides the USB Type-C cable included in the package, you’ll
also need a 5V power adapter with USB output, such as your cell
phone’s charger or power bank.
Note: When you plug the USB Type-C cable to the K4 and hear the
“click” sound, that means the connection is up. Please do
not intend to insert the cable to K4’s USB/POWER port fully
which can cause damage.
2: Why is it that all my cables are plugged in well, but the
K4’s RCA analog output is still silent?
• Please check if the input mode selection is correct.
• The K4 supports 3.5mm headphone output and RCA sound
output simultaneously. You can check if the headphone output is
normal or not when you find the RCA output has no sound.
• Please try to replace the RCA cable and test again.
3: Why do I get endless white noise?
• Please check that your input device is using Dolby/DTS audio,
If so,please change it to RAW/PCM type and try again.
4: No Dolby/DTS audio and I still get noise through the
USB input?
• Please try to connect the USB Type-C cable to the other USB
ports on your PC. Some USB ports may have unstable data
transmission so please try to swap it;
• Please try again on another computer;
• Please replace the USB Type-C cable and retest;
NOTE: Some devices’ default sound output are of Dolby or DTS
type, which K4 DOES NOT support. Please remember to
select RAW/PCM sound type on your device, otherwise you
will hear a lot of noise or no sound output.
Coaxial input to K4
Prepare:
K4, AC adapter, USB Type-C cable, device with coaxial
output(TV for example), coaxial cable (not included in the
package).
Step 1: Connect the USB Type-C cable to the AC adapter(or any
other DC 5V phone charger or computer USB connector),
then connect the Type-C cable to the K4;
Step 2: Connect the TV to K4's coaxial port via the coaxial cable;
Step 3: Set the TV's coaxial output sound to RAW/PCM;
Step 4: Long press the multi-function knob to switch on K4;
Step 5: Short press the multi-function knob to select COA input
mode;
Step 6: Turn up the volume and enjoy!
NOTE: Some devices’ default sound output are of Dolby or DTS
type, which K4 DOES NOT support. Please remember to
select RAW/PCM sound type on your device, otherwise you
will hear a lot of noise or no sound output.