Lenco Grid-7 User Manual
Page 9

 
6. Troubleshooting 
Symptom Possible
Cause Solution
Unit abnormal return to 
standby under Line in 
1. Not in optimum
setting of volume in 
external connected 
device 
1. Volume level of the
external connected device 
should be set to maximum 
level and adjust the unit 
volume to a suitable level. 
No sound at Bluetooth mode 1. Bluetooth device is
not paired with the 
unit 
2. Volume has set at
minimum
1. Follow the instructions to
pair the Bluetooth device 
to the unit 
2. Set the volume to high
level to resume audio
Sound distorted while playing 
card 
1. Original sound file is
distorted
1. Skip to other track to try
Bluetooth mode can’t change 
to other mode 
1. Not complete listen
the sound notice from 
unit 
1. Complete listeningthe
sound notice
Unit is performed abnormally 1. Something interrupt
1. Re-connect AC/DC
adapter to unit and set 
power off to on andtry 
again 
Smartphone can’t connect 
with the unit 
1. Unit interrupted 
2. Previous connect 
smartphone is still 
connected with the 
unit 
1.
Re-connect DC in with 
AC/DC adapter and set 
power off and on. 
2.
The previous connected 
smartphone has to set 
BLUETOOTH as OFF. 
Start searching of LENCO-
GRID 7 from another 
smartphone with 
BLUETOOTHof this phone 
is set ON. 
7. Service and support 
 
For information:
www.lenco.com
For support:
http://lencosupport.zendesk.com
 
Lenco helpdesk: 
Germany 0900-1520530 (Local 
charges)
The Netherlands
0900-23553626
(Local charges + 1ct p/min)
Belgium 02-6200115
(Local
charges)
France
03-81484280
(Local
charges)
 
The helpdesk is accessible from Monday till Friday from 9 AM till 6 PM. 
When contacting Lenco, you will always be asked for the model and serial number of your 
product. The serial number can be found on the back of the device. Please write down the 
serial number below: 
 
