KSuppressing interference

OPTIMIZE MODULATOR

 

 

OPTIMIZE FREQUENCY

591

p

MODULATOR

ON

 

SOUND SYSTEM

G

 

________________________________

EXITpMENU STOREpOK

 

 

ENGLISH

Optimising the modulator

 

 

 

 

 

 

In some reception locations it is possible that a TV channel will be sent on the same or similar

 

 

frequency as the video recorder.

 

 

Result: As soon as the video recorder is switched on, the reception quality for this or several

 

 

other TV channels will decreased.

 

 

The following steps will show you how to change the pre-set 'transmission' (modulator)

 

 

frequency on the video recorder.

 

 

What is a modulator?

This electronic component in the video recorder allows the device to transmit audio and video signals via the aerial cable. These signals can be received TV set just like TV channels.

What is an modulator frequency?

This frequency or channel indicates the frequency or channel on which the audio or video signal is transmitted.

1Switch on the TV set. Select the programme number used for video recorder playback (see TV operating instructions).

2Press STOP/EJECT ? to eject any cassette that might be in the device.

3Hold the STOP h button on the remote control.

In addition press the STOP/EJECT ? button on the video recorder until the pre-set modulator frequency e.g. 'M591' (591MHz or UHF channel 36) appears in the display.

The video recorder will now transmit a test image on UHF channel 36/Frequency 591MHz.

4Select line 'OPTIMIZE FREQUENCY' using ;qP or P r= . Enter the new modulator frequency with the number buttons 0..9 .

5Tune in the TV set to the new modulator frequency (channel 21 - 69) shown in the video recorder display.

aSound interference occurs

b The wrong sound system could have been selected.

In line 'SOUND SYSTEM', select the TV system with the least sound disruptions using P or Q . 'G' (TV system PAL-B,G) or 'K' (TV system SECAM-D,K).

Suppressing interference

57

 

Page 61
Image 61
Philips VR620/58 KSuppressing interference, Optimising the modulator, What is a modulator?, ASound interference occurs