Symptom Possible cause Remedy
TV output
No picture HDMI cable not plugged in Check appropriate HD TV/
monitor and THEC64 HDMI
ports
Switch-box, device or display
converter between THEC64
and HD TV/monitor faulty,
incompatible or not configured
correctly
Remove the device between
THEC64 and HD TV/monitor
and use a direct HDMI
connection
HD TV/monitor incompatible
with current refresh rate (50 Hz)
Switch on whilst pressing and
holding the POWER switch
for six seconds. Output is set
to default 60 Hz. Specifically
set the Video output option to
60Hz when the option appears
after language selection
Faulty HDMI lead Try a different HDMI lead
HD TV or monitor on wrong
input source
Switch input source to
appropriate HDMI setting on
HD TV or monitor
There is a
delay between
controller
actions and
reaction on-
screen (lag)
TV is applying image
processing to THEC64 video
output
Switch off image processing
options on your HD TV,
or engage ‘Game mode’
or equivalent on HD TV to
compensate
Sound
No sound HD TV/monitor volume too low Adjust volume of HD TV/
monitor
External speaker volume too
low, or off
Turn on external speakers,
adjust volume
Amplifier or Soundbar
incorrectly configured
Check the manual for your
Soundbar or Amplifier
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