Trouble shooting

If you experience problems with this receiver or its installation, in the first instance please read carefully the relevant sections of this User Manual and this Troubleshooting section.

Problem

Possible cause

What to do

Display on front panel not

Main lead unplugged

Check mains lead

lit

 

 

 

Main fuse blown

Check fuse

No signal found

Aerial is disconnected

Check aerial lead

 

Aerial is damaged/misaligned

Check aerial

 

Out of digital signal area

Check with dealer

No picture or sound

Program not broadcasting now

Retune to another

 

 

channel

Mosaic blocks in picture or

Aerial may not be compatible

Check aerial

picture freezes

 

 

Scrambled channel

Channel is scrambled

Select an alternative

message

 

channel

Forgotten channel lock

 

Use the override

code

 

code”7710” to unlock

 

Receiver off

Plug in and turn on

 

 

receiver

 

Handset not aimed correctly

Aim handset at front

No response to remote

 

panel

Front panel obstructed

Check for obstructions

control

Remote control batteries are

Check batteries

 

 

inserted incorrectly

direction

 

Handset batteries exhausted

Replace remote

 

 

control batteries

After moving the receiver

The aerial feed may come

Try a direct feed from

to another room, find can’t

through a distribution system

the antenna

receive the digital

which may reduce the digital

 

reception

signal now received by the

 

 

receiver

 

Warning: If this doesn’t work, contact a qualified repair technician, never attempt to repair the receiver yourself.

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Grundig GSTB3103HD manual Trouble shooting