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Qls QA390, Manual

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Qls QA390 Manual Download Page 6

6 

 

 

4.3 Rear panel 

 

 

 

NO.

 

Function instruction

 

A 

XLR balance output right channel 

B 

XLR balance output left channel 

C 

RCA analog output right channel 

D 

RCA analog output left channel 

E 

Coaxial digital output 

F 

Coaxial digital input 

G 

Optical digital output 

H 

Optical digital input 

I 

USB input-connect phone(needn’t 

camera suits)

 

J 

USB input-connect computer 

K 

Type-C charging input(support fast charging) 

L 

Power supply input (power & charge) 

 

 

 

 

 

 

Summary of Contents for QA390

Page 1: ...ntainer AAC LC SBR encoding DTS 16Bit 44 1KHz WAV container DTS 5 1 DTS ES CUE ANSI Unicode Unicode Big endian UTF 8 encoding USB PC PCM 32Bit 384KHz DSD256 USB Phone PCM 32Bit 384KHz DSD128 Blue tooth PCM 24Bit 192KHz SBC AAC HWA encoding Coaxial optical input PCM 24Bit 192KHz DSD64 DoP Coaxial optical output PCM 24Bit 192KHz DSD64 DoP Note Some audio formats has higher requirements at the contin...

Page 2: ...shing or blue lamp flashing maybe your charger voltage not be in accordance with requirements please try to change one charger Double color lamps alternate flashing not detected battery or battery abnormal please try to break off the charger and insert again repeatedly try but still like so please contact the service after sales 3 Firmware upgrade 3 1 The latest firmware files can be downloaded on...

Page 3: ... also use the Type C OTG cable to connect to the mobile phone at one end The other end uses a USB A port to the Micro port cable to connect to the QA390 b Connecting to an Apple phone or iPad eliminates the need for a camera kit and requires a dedicated Lightning to Micro USB cable Once connected switch to the USB PHONE channel and play music for sound If there is no sound try switching to another...

Page 4: ...r supply still comes from the battery and can be used while charging but this will seriously affect the battery life in the long run 4 1 6 DC port The standard is 5 5mm 2 1mm the internal positive and negative the voltage is 5V 13V It is recommended to use 9V 12V not less than 20W high quality power supply This port is the external power input port This port will automatically disconnect the batte...

Page 5: ...n when the screen is off D Charging status indicate lamp E Infrared remote receive window F XLR balance output port G Volume knob can control the headphone output and PRE AMP function volume H Balance headphone output port suitable to 2 5 3 5 4 4 insert needle I Single end headphone output port suitable to 3 5 6 35 insert needle ...

Page 6: ...A analog output right channel D RCA analog output left channel E Coaxial digital output F Coaxial digital input G Optical digital output H Optical digital input I USB input connect phone needn t camera suits J USB input connect computer K Type C charging input support fast charging L Power supply input power charge ...

Page 7: ...hone Preamp Volume reduce B Reset C Headphone Preamp Volume increase D Setting E Direction key up F Return G Direction key down H Confirm play I Direction key right J Previous folder K Direction key left L Next folder M Previous song N Input channel selection O Next song ...

Page 8: ...Playing mode C Audio format D Track name E Progress bar F Folder name G Current elapsed time of track H Folder index total number of folders I Track index total number of tracks J Total time of track K Play Pause L Sample Rate M Bit depth N Battery capacity O Volume ...

Page 9: ...mum capacity is 100 Reject In the favorite list long time press confirm key 2s then loose it select confirm can reject the songs from favorite Note the play scope of favorite limit at the current favorite list 5 4 Delete songs Select the song under the song list long time press return key 2s then loose it select confirm to delete Note only modify the file suffix as nul can search out all nul docum...

Page 10: ...s digital signal input 6 Setting parameters 6 1 Playback Range ALL all songs on the SD card are valid files Folder only the songs in current file folder can be played 6 2 Memory Playback OFF Turn off the memory mode and the master interface will show after startup PAUSE Turn on the memory mode and the playing interface will show after startup ready for the user to play AUTO Turn on the memory mode...

Page 11: ...usted with the headphone volume 6 7 Gain Gain has four modes at low medium high and super high default super high Low resistance high sensitivity earbuds suggest that the gain is set to low or medium If you hear the noise floor you can switch to the lower first gain 6 8 AMP voltage The AMP voltage has three structure at low medium and high default high Generally the medium and high resistance head...

Page 12: ... light up again 6 12 Automatically power off Set the automatic power off time can set automatically power off after 30 60 90 and 120 minutes valid after press setting key withdraw 6 13 Pause power off time Set automatic power off when 15 or 30 minutes after pause play default close 6 14 Remote control power on off If you do not use the remote control it is recommended to set it to off to avoid pho...

Page 13: ...s with the product Product name QA390 Serial Number Purchase date DD MM YY Customer name Zip code Mobile phone Fix phone Shipping address Feedback of Abnormal Situation Cause Analysis and Solution This part filled by the manufacturer Remarks ShenZhen QLS Electronic Technology Co Ltd Quloos Contact Chen Xue Qian Clark E mail cxqmcu cxqmcu com ...

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