Excessive sibilance being experienced on playback of some (but not all) recorded TV programmes and pre-recorded dvds. This is so severe in some cases as to totally spoil the enjoyment of the programme. Might the problem be caused by incorrect set-up or is it an inherant fault within the DMR EX85? Connection is by HDMI to an LG flat screen LCD TV.
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When was the last time you ran the "head cleaning" tape in the machine? As tape collects dust and dirt - it gets deposited on the recording and playback heads. This ruins playback and recording quality. Also, since tape is magnetic - they tend to magnetize the heads, too (just like reel to reel, 8 track & cassette player / recorders). Demagnetizing them will help too. Here are links to both products:
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"Will not accept blanks for recording it says No Disc."
from Technika manual: Start Quote
VCR/DVD Recorder; I have connected the TV to my VCR or DVD Recorder via SCART but it is not recording. In addition to connecting via SCART, you should connect the aerial cable from the wall socket to your VCR/DVD Recorder and another aerial cable from the VCR/DVD Recorder to the TV." Also; "Check the DVD is a region 2 disc - to change the region of the DVD player, refer to section 'Changing Regions'.
Note: USB record function is only avilable in Digital/Freeview TV/Radio mode. Due to copyright laws and illegal copying/recording it is not possible to record to/from any other input/output source.
DVD MENU: To access this menu, press [MENU] button on the remote control. TV System - Choose from the following options. NTSC; Normally used for discs from North America, Japan etc. Auto; For both NTSC and PAL. This TV/DVD player is pre-set to play Region 2 DVDs.
Tip: This television contains one TV tuner, therefore it can only record the channel you are watching or record one channel while the television is in standby mode.
Tip: This TV/DVD player is pre-set to play Region 2 DVDs.
You can not record to a DVD, according to their manual. That is why you get the no disc error. It does not have the play sector at the beginning of the DVD. You can record to USB Flash Drive however.
USB RECORD - DIGITAL/FREEVIEW MODE Built into this television is a USB record facility. This function is available in Digital/Freeview mode when used in conjunction with a compatible USB memory stick or USB Hard drive. The benefi ts of this are as follows: • Pause live TV/Radio and then playback, fast forward and rewind (up to live TV) • One button record, if you decide you want to record the current programme • Easy programmable recording from the 7 day TV Guide • Record TV/Radio and watch/listen back on your computer/laptop Due to the nature of the product, it is necessary to use a high speed USB memory stick (as the TV reads from and writes to the memory stick at the same time, some memory sticks may not be suitable). You can purchase high speed memory sticks from some computer stores, alternatively, we have a selection of tested and compatible memory sticks available to purchase directly from the helpline/web site. These are available in 4GB, 8GB and 16GB. (Please check the web site/helpline for latest specifications and prices). End Quote
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This could be a defective cartridge or a bad belt. It all depends upon the type of distortion that is present. Poor speed control can be difficult to hear with speech but very noticable in music. With low volume sources, poor quality may not be as noticable and hide cartridge problems. Can you please update this with a description of the distortion as well as the model number?
Unless the tv and dvdr are paired I.E. both the same make and compatible models, then you will have problems. try setting the timer on the dvdr for a programme but set the channel to av(scart connecter used) and set the timer on the tv to the same. Please note that AV2 on the tv usually sends the programme to the dvdr.
Suspect a DTS board capacitor failures the ESR characteristics.
To troubleshoot connected any available device to RCA stereo connections at input to multi channel in. Test input to the corresponding speaker output confirming audio quality. This circuit bi-passes the DTS function and connects to the power amplifier for the speaker.
Connect any audio amplifier from the preamp out and confirm the quality of the audio.
I suspect that the pre-amp out will contain the distortedf noise. If the distrotion appears in all the channels it is most likely the DTS.
You will have to test all the components in the hook-up for the source of the problem.Try recording to the dvd from some other source and see if you have the same level of noise on the playback. If you do then you have a problem with the dvd players or in the connections between the components.Assuming the speakers are not making the noise problem. You should check you cable set-up for interactive noise being produce from too many cables to close together or too close to a noise source and picking up noise from the source. To test this try isolatilating the cables from each other and other possible noise sources, like a/c lines and high magnetic field situations. If you solve your problem with this then you know its your hook-up having noise pick-up problems from a external source. Next try isolating the noise source by disconnecting components and cables fronm the hook-up until you find the problem. This could be a ground problem either in the source of the noise or in the cables. Try improving the grounding of the system by using new cables and earth grounds if possible. If the problem is in one of the components, it maybe several problems. Noisy amplifiers or components in the signal path. If the units being use are of some age it might be time to have them checked for such problems as aging components, like capacitors and ringing resistors in the signal path. This can be tested with a oscilloscope checking the signal path of the preamplifier sections and output amplifiers sections of the components.The testing can also show you, the amount of distortion on the signal at various stages of your recording and playback signal paths. You are probably getting high ripple content somewhere in the signal path from bad grounds or aging components. This noise is causing the distortion that you are hearing amplified from you speakers. if the cables are not the problem and it is some component in you system it is best to locate it and take it in for service.You can use your owners manuals to find the information for support for your products. I hope this has helped you with your problem.