Diagnostics - TechnoTrend TT-micro TC821 HDTV Instruction Manual

9. Diagnostics

Attention! Do your best to avoid unnecessary risks.
Never attempt to repair defects or perceived defects on the
device by yourself.
You may encounter problems in every electronic appliance.
However, these problems need not be caused by a defect.
Often the cause is poor connections or errors in connecting.
Check the following points before contacting technical sup-
port.
Fault
Device does not start No mains voltage
Sound but no picture Wrong channel parame-
No picture, no sound
72
Possible cause
ters
SCART- or HDMI plug not
completely inserted
No mains voltage
No or incorrect channel
list
DIAGNOSTICS
Remedies
Check cable and power
supply connector
Perform automatic
search, Channel scan
Check plug connection
Check cable and power
supply connector
Perform automatic
channel scan