Materials devoted
to solution of those or other problems, coupled with TV-cards
or simply having the ratio to cards itself, or to telereception
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JTV 3.0 (12.6): Customization of a
New TV- card
JTV 3.0 (12.6): Tuners
JTV 3.0 (12.6): Commands and
Keys
JTV 3.0 : Program description
World Ready Software: Possible
variants and released solutions - Russian
Quick reference: Television
standards of the world - Russian
TV Vision / ProVideo PV951: Sound
problems in JTV - way to avoid
AVerMedia TVPhone98 w/VCR: Problem
solution for instability of RCU operation |
Below are answers
for questions, which I had to meet itself. Answers for other
interested questions related with TV-tuners, in Russian, you
can search on FAQ pages of sites
Tuner and
JTVrus.
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01.
Question: JTV,
at reception with common home antenna, is not adjusted on
some channels, though the TV set displays them and native
TV-card software may displays it or not. What is the business?
02. Question: Is it for
all AverTVPhone98 w/VCR the console such sickly? It does not
work from walls for me and it is necessary to direct precisely
in the receiver :( Can is it treated?
03. Question: At attempt
to start JTV 3.0 wip 12.6 under Win98 there is a black screen
and all. On Alt-F4 normal return in the system. What is the
business?
04. Question: At usage JTV 3.0
wip 12.6, buttons of the remote console work wrong, or do
not work in general. In the previous version all worked well.
What is the business?
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01.
Answer: More probably all business is that the decimeter
channels of a teleannouncement are converted in a grid of
frequencies of ranges VHF1 (49,75-93,25 MHz) and VHF3 (175,25-223,25
MHz) incorrectly and even occupy a frequency range VHF2 between
them. The tuner thus or at all does not scan the necessary
frequency range or scans, but irregularly identifies the retrieved
channel and is not adjusted.
In modern TV sets the range VHF3 frequently includes also
frequencies of a range VHF2. They have the function of auto
definition of the standard of an announcement PAL/SECAM and
specialized controller, therefore there all is simple.
In software of different TV-cards sharing all frequency range
on a part also is used: VHF1, VHF2+VHF3 and UHF - with 2 identifiers
of boundaries between them, or VHF1, VHF2, VHF3 and UHF -
c 3 identifiers. The "correct" identifier of boundary VHF1-VHF2
in conditions of Russia usually does not allow card
to recognize the converted channels squeezed in a range VHF2.
Common probable solution of the problem - reconfigurate software
so, that card perceived frequencies above range VHF1 as inherings
to it (but not VHF2/VHF3 - as it would be possible to expect),
that is usually made by upwarding bias frequency of the identifier
for range VHF2. As possible solution for JTV in Russia use
the corrected table of a tuner from the file secam2dk.zip.
02. Answer: Probably,
together with a sensor signal on an input "Remote" of TV-card
the strong signal of interference acts.The elementary variant
- to suppress interferences, not suppressing, whenever possible,
useful signal. The elementary filter - capacitor. Not pressing
in details of the process of selection, take a small-sized
ceramic capacitor the nominal 5000 - 10000 pF and connects
it to contacts 2 - average contact and 3
- tank plug.
It can be made on the card, having
soldered the capacitor immediately for the "Remote" plug circuit
side. If to look at card circuit side that, from the right
- to the left, first sealed-in - contact of the plug - tank
(3), second sealed-in - power supply (1),
third sealed-in - signal (2). On my card
AverMedia TVPhone98 w/VCR I have put KM-5 6800 pF. If to judge
under the observations of multimeter, the interference has
not disappeared, but now TV-card
completes pressing buttons of the console at 90-99% of cases.
If soldering the capacitor on card is undesirable, it is possible
to make an adapter and to place the capacitor in it, or to
use a standard T-junction and additional plug with the capacitor,
placed in it, - effect will be same. More information see
here.
03. Answer: Such problem
usually happens at the first installation of the version 12.6.
It is coupled that the file JTV.INI from archive not absolutely
approaches to your configuration of equipment. It is recommended
to use installation "from zero", which is realized in the
modified JTV package or
setup pack on the site JTVHost.
Other way, you may use universal INI-files.
04.
Answer: Such problem arises because in the version
12.6, the programs JTV and JTVRemote read out the information
on equipment from different sections of the file JTV.INI.
First reads section [Hardware_WinXX], and second - [Card1].
The first section is customized from within JTV from the menu
of the configuration of equipment, and second remains as was,
i.e. can not any more correspond to actual equipment. For
solution of this problem it is necessary manually edit section
[Card1] up to coincidence of parameters in both sections.
But it is easier to use the procedure of customization, which
is realized in the modified
JTV package or setup pack
on the site JTVHost. Other way, you may use universal INI-files.
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in... |
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Remark,
that... |
when absence of the news and some files on
one site mirror, they can be found on another.
... JTV, unfortunately, DOES
NOT WORK on MB with i81xx chipsets under Win9x/Me, but
works under WinNT/2k/XP.
... scanning and selecting channels in JTV
is possible only when set correct value of the parameter I2CAddress
in .tun file.
... Radiator will start and catches stations
propelly, if before to leave JTV on channels VHF3, VHF5, VHF11.
... JTVRemote is necessary to reload after
work bRadio Pro 2.0, which turn on keys of the remote in a mode
of auto repetition, but in bRadio Pro 2.1 all OK.
...remote driver for bT8x8 TV card for JTVRemote
(BTRemote) in Win9x/2k/XP can be created if anyone not to be
too lazy, study the file
with the instructions and persistently work itself or together
with the author of this site.
... bT878 description in .pdf format can be
found on www.conexant.com
for search string 'bt878'. |
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