Rectifying Faults Yourself - Grundig STR 622 TWIN Manual

Fault
Does not function
No picture or sound.
Picture has spikes.
All stations from this satellite
are disturbed.
Only on this station
Stations do not correspond to
station table.
Remote control does not function
Reception unit B cannot be controlled. Timer active
Possible cause
No power supply
EURO-AV cable loose
TV set not in AV setting
Aerial is not aligned to a satellite
Poor aerial cable connections
Defective LNB
Incorrect reception range of LNB
Incorrect LNB oscillator frequency in menu Correct the oscillator frequency setting
Aerial not aligned exactly
LNB oscillator frequency is shifted
Satellite blocked by trees, bushes, etc.
Dish too small
Aerial cable too long
Cable contacts poor or damp
Input frequency not tuned in
correctly
LNB oscillator frequency entered
incorrectly
Aerial directed at bad satellite.
Receiver receives no remote control
commands (may be obstructed by an object)
Batteries empty or polarity reversed
Universal remote control
programmed incorrectly
Receiver programmed for remote
control mode 2 (see page 20)
Rectification
Check mains power plug
Insert plugs at receiver and
TV set
Switch TV set to AV
Align aerial to required satellite
(see assembly instructions
for aerial)
Check cable connections
Replace LNB
Replace LNB
(see page 13)
Align aerial exactly
Optimize allocated LNB frequency (see
"Preselecting LNB oscillator frequencies,
page 13).
Remove obstacles or change aerial place.
Use the picture and sound improvement
function (see chapter "Using the
Receiver", page 10).
Use Inline amplifier
Check contacts
Retune frequency (see "Selecting the
transmission frequency of a station" on
page 12 and "Finetuning the reception fre-
quency for reception unit B" on page 16.
Enter LNB frequency of used LNB
optimize if necessary
(see page 13).
Correct aerial alignment
The receiver's display must be visible,
direct the remote control at the receiver.
Replace batteries or reverse polarity
Remove battery, press any button
several times and replace battery. The
basic setting (see chapter on "Universal
Remote Control" on page 6) is automati-
cally set.
Press the ¢ key and the
SAT 2
desired function key.
Wait until the Timer has elapsed
or
abort the Timer, see page 18 (internal
Timer) or page 19 (external Timer).
23