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Philips VR670W/58 JSuppressing interference, Optimising the modulator, What is a modulator?

Models: VR670B/58 VR670W/58

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JSuppressing interference

OPTIMIZE MODULATOR
OPTIMIZE FREQUENCY	591	p
MODULATOR	ON
SOUND SYSTEM	G

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EXITpMENU STOREpOK

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 P ;q 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 SqP or QSr . 'G' (TV system PAL-B,G) or 'K' (TV system SECAM-D,K).

42	Suppressing interference

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Philips VR670W/58 JSuppressing interference, Optimising the modulator, What is a modulator?, ASound interference occurs

Contents

Table of contents Remote control Additional TV functions Front of the deviceSymbols on your video recorder display DECPage Phil AIntroductionDear Philips customer Supplied accessories SpecificationsEnergy consumption 16W Important notes regarding operation Special functions of your new video recorder Connecting your video recorder to the TV set BConnecting the video recorderPreparing the remote control for operation Connecting with a scart cableAV at Connecting with a scart cableMy TV offers me a selection menu for the scart socket Connecting without a scart cable AMy screen is emptyAI do not see a test screen Connecting additional devicesSocket EXT.2 AV Programme number for video recorder operationConnecting additional devices CInstalling your video recordingInitial installation What is an on menu?Decoder Decoder allocationSatellite receiver ASound disruptions can occur on several TV channelsHow can I switch off the decoder? Manual TV channel searchWhat is NICAM? What is hidden behind the settings?What is a special channel? AI dont know the channels for my TV stationsUsing the satellite receiver Automatic TV channel searchMonitor function Sorting and clearing TV channels manuallyDeleting TV channels Setting on menu languageAThe main menu will appear on the screen Setting the time and date ATime/date is displayed incorrectly despite manual settingDImportant notes for operation Navigation in the screen menuWhat does VHS mean? EPlaybackPlaying cassettes APicture/ sound quality is poorDisplaying current tape position Automatic switch of special functionsPlaying back Ntsc cassettes How can I set the counter to 00000?Searching for a tape position with picture scanning Still picture / slow motionInstant View Automatic search for a tape position index searchAutomatic search for a blank space on the tape AThe cassette is ejectedOptimising still picture FEliminating picture interferenceOptimising tracking AI cannot reach optimal quality for the still pictureGManual recording Recording without automatic switchAutomatic switch General informationLining up recordings assemble cut Recording with automatic switch OTR OnePreventing accidental erasing of cassettes How can I clear the recording time just setted?Selecting the recording speed SP or LP Switching off Record Link Confirm with OK To end, press Menu Insert a cassetteProgramming a recording with ShowView HProgramming a recording TimerWhat is VPS/PDC? What do I need to know about VPS/PDC?Selecting onetime/daily/weekly recordings Switching on VPS/PDC in the Start input fieldAThe following message appears on the screen Select Prog Recordings Problems and solutions for programmedSTANDBY/ON m EXT.1 AV E1 or EXT.2 AV E2 Programming a recording without ShowViewProgramme numbers of the E1 and E2 scart socket Problem solving for programmed recordings ProblemProgramming a recording with Press Turbo TimerACLK will flash in the video recorder display Will flash Press Clear CL Delete programmed recordingChanging the video colour system How can I change back to Automatic SwitchIOther functions Video colour systemsChild lock Switching the on display OSD off or onWill flash in the video recorder display Which settings can I choose? Switch off the clock displayHow can I switch on the clock display? Automatic switch Continuous playbackSelecting the sound channel What goes on behind the settings?Automatic switch to Mono Playing back an audio dubbingJSuppressing interference What is a modulator?What is an modulator frequency? Optimising the modulatorSwitching the modulator on / off How can I switch the modulator back on?With STANDBY/ON m KBefore you call an engineerHotline telephone numbers BAttentionBefore you call an engineer