I have a JVC rear projection tv that I bought second hand a little over a year ago. It works fine except for the HDMI input. When I plug it into my cable box and switch to the digital input, it can't detect anything (and says it's gonna turn off in 9 minutes if nothing is connected before then :)). However, if I plug in my computer via a dvi/hdmi cable, the tv still doesn't detect a connection, but the computer recognizes the tv for the model number that it is. There is no setting in the tv that can affect the input, from what I can find (and I went over all the menus multiple times).
Any ideas on what might be causing this? If it's an electrical problem, is it worth my time to get an electronic technician to fix it?
In article <7I8ik.1480$nu6.909@edtnps83>, jordo <no...@email.address> wrote:
> I have a JVC rear projection tv that I bought second hand a little over > a year ago. It works fine except for the HDMI input. When I plug it > into my cable box and switch to the digital input, it can't detect > anything (and says it's gonna turn off in 9 minutes if nothing is > connected before then > :)). However, if I plug in my computer via a dvi/hdmi cable, the tv > :still > doesn't detect a connection, but the computer recognizes the tv for the > model number that it is. There is no setting in the tv that can affect > the input, from what I can find (and I went over all the menus multiple > times). > Any ideas on what might be causing this? If it's an electrical problem, > is it worth my time to get an electronic technician to fix it?
Dunno if it's any help, but my Sagem DLP detects any of the many inputs coming alive and switches out of standby - except the digital one which in this case is a DVI type.
-- *A day without sunshine is like... night.*
Dave Plowman d...@davenoise.co.uk London SW To e-mail, change noise into sound.
Dave Plowman (News) wrote: > In article <7I8ik.1480$nu6.909@edtnps83>, > jordo <no...@email.address> wrote: >> I have a JVC rear projection tv that I bought second hand a little over >> a year ago. It works fine except for the HDMI input. When I plug it >> into my cable box and switch to the digital input, it can't detect >> anything (and says it's gonna turn off in 9 minutes if nothing is >> connected before then >> :)). However, if I plug in my computer via a dvi/hdmi cable, the tv >> :still >> doesn't detect a connection, but the computer recognizes the tv for the >> model number that it is. There is no setting in the tv that can affect >> the input, from what I can find (and I went over all the menus multiple >> times).
>> Any ideas on what might be causing this? If it's an electrical problem, >> is it worth my time to get an electronic technician to fix it?
> Dunno if it's any help, but my Sagem DLP detects any of the many inputs > coming alive and switches out of standby - except the digital one which in > this case is a DVI type.
I've checked all of my inputs while the HDMI is plugged in, but it doesn't show up anywhere. I was reading on some forums that the HDMI can be disabled by various things and that it can be re-enabled by doing a "system" check in the service menu (and it gives the steps to do that). However, I cannot find the steps to get INTO the service menu!
In article <HJiik.1560$%b7.1345@edtnps82>, jordo <no...@email.address> wrote:
> I've checked all of my inputs while the HDMI is plugged in, but it > doesn't show up anywhere. I was reading on some forums that the HDMI > can be disabled by various things and that it can be re-enabled by doing > a "system" check in the service menu (and it gives the steps to do > that). However, I cannot find the steps to get INTO the service menu!
Wonder if it's tied in to a component input which could be either component or RGB? My sat receiver is like that. Select RGB and you loose the upscaling, etc.
-- *It is wrong to ever split an infinitive *
Dave Plowman d...@davenoise.co.uk London SW To e-mail, change noise into sound.
On Fri, 25 Jul 2008 00:00:03 GMT, jordo <no...@email.address> wrote: >I have a JVC rear projection tv that I bought second hand a little over a >year ago. It works fine except for the HDMI input. When I plug it into my >cable box and switch to the digital input, it can't detect anything (and >says it's gonna turn off in 9 minutes if nothing is connected before then >:)). However, if I plug in my computer via a dvi/hdmi cable, the tv still >doesn't detect a connection, but the computer recognizes the tv for the >model number that it is. There is no setting in the tv that can affect the >input, from what I can find (and I went over all the menus multiple times).
>Any ideas on what might be causing this? If it's an electrical problem, is >it worth my time to get an electronic technician to fix it?
>Jordan
Has the TV ever been serviced? I've heard that some Pioneer TVs are booby trapped so that if the set it plugged in with the back cover removed, it disables the HDMI input. They are worried that you might be trying to steal Hollywood movies. Andy Cuffe
Yeah, I read about that happening with my system. I don't know that it's been serviced before since I got it second-hand. I'm thinking that might be the case and can reset it, but only if I can get into the "service menu", which I can't get into because I have no idea how to. :) I've looked online to try to find out how, but no luck so far. :S
> On Fri, 25 Jul 2008 00:00:03 +0000, jordo wrote:
>> I have a JVC rear projection tv that I bought second hand a little over a >> year ago. It works fine except for the HDMI input. When I plug it into >> my cable box and switch to the digital input, it can't detect anything >> (and says it's gonna turn off in 9 minutes if nothing is connected before >> then >> :)). However, if I plug in my computer via a dvi/hdmi cable, the tv >> still >> doesn't detect a connection, but the computer recognizes the tv for the >> model number that it is. There is no setting in the tv that can affect >> the input, from what I can find (and I went over all the menus multiple >> times).
>> Any ideas on what might be causing this? If it's an electrical problem, >> is it worth my time to get an electronic technician to fix it?
>> Jordan
> Does the output of the cable box match the resolution capabilities of the > tv? If the box is set to 1080p and the tv won't do over 1080i then it may > give you these symptoms. This is probably not the case but was worth > mentioning.
No stupid. If that was the case then the T.V. would say "Incompatible Input Signal" or some shit like that.
For whatever you are feeding to the HDMI port on your projection TV set, make sure that its resolution setting is within the range of the set. If it is out of range, the set will act as if there was no response.
I have also seen a failed HDMI port on some equipment react in a similar way that you are describing. But, first investigate properly before coming to any conclusions.
news:7I8ik.1480$nu6.909@edtnps83... I have a JVC rear projection tv that I bought second hand a little over a year ago. It works fine except for the HDMI input. When I plug it into my cable box and switch to the digital input, it can't detect anything (and says it's gonna turn off in 9 minutes if nothing is connected before then :)). However, if I plug in my computer via a dvi/hdmi cable, the tv still doesn't detect a connection, but the computer recognizes the tv for the model number that it is. There is no setting in the tv that can affect the input, from what I can find (and I went over all the menus multiple times).
Any ideas on what might be causing this? If it's an electrical problem, is it worth my time to get an electronic technician to fix it?
On Fri, 25 Jul 2008 00:00:03 GMT, jordo <no...@email.address> put finger to keyboard and composed:
>I have a JVC rear projection tv that I bought second hand a little over a >year ago. It works fine except for the HDMI input. When I plug it into my >cable box and switch to the digital input, it can't detect anything (and >says it's gonna turn off in 9 minutes if nothing is connected before then >:)). However, if I plug in my computer via a dvi/hdmi cable, the tv still >doesn't detect a connection, but the computer recognizes the tv for the >model number that it is.
To recognise the TV, the computer only needs to be able to read the TV's EDID EEPROM via the DDC pins in the cable (pins 6,7,14,15):
I have managed to read a powered-down monitor's EDID EEPROM using my device programmer. I made a VGA DB15-to-DIP8 adapter cable and told the programmer that it was connected to an Atmel AT24C21 serial EEPROM which has a "DDC1/ DDC2 Interface Compliant for Monitor Identification".
You can find the EDID in the registry at the following key:
HKEY_LOCAL_MACHINE\Enum\MONITOR
If you export that key to a .reg file, you will see the EDID EEPROM data. Analysing the EDID will tell you what scan rates the TV supports. FWIW, if you post your EDID here, I may be able to analyse the data for you.
BTW, if you want someone to help you, it would help them if you would indicate the TV's model number.
- Franc Zabkar -- Please remove one 'i' from my address when replying by email.
Franc Zabkar wrote: > On Fri, 25 Jul 2008 00:00:03 GMT, jordo <no...@email.address> put > finger to keyboard and composed:
>> I have a JVC rear projection tv that I bought second hand a little over a >> year ago. It works fine except for the HDMI input. When I plug it into my >> cable box and switch to the digital input, it can't detect anything (and >> says it's gonna turn off in 9 minutes if nothing is connected before then >> :)). However, if I plug in my computer via a dvi/hdmi cable, the tv still >> doesn't detect a connection, but the computer recognizes the tv for the >> model number that it is.
> To recognise the TV, the computer only needs to be able to read the > TV's EDID EEPROM via the DDC pins in the cable (pins 6,7,14,15):
> I have managed to read a powered-down monitor's EDID EEPROM using my > device programmer. I made a VGA DB15-to-DIP8 adapter cable and told > the programmer that it was connected to an Atmel AT24C21 serial EEPROM > which has a "DDC1/ DDC2 Interface Compliant for Monitor > Identification".
> You can find the EDID in the registry at the following key:
> HKEY_LOCAL_MACHINE\Enum\MONITOR
> If you export that key to a .reg file, you will see the EDID EEPROM > data. Analysing the EDID will tell you what scan rates the TV > supports. FWIW, if you post your EDID here, I may be able to analyse > the data for you.
> BTW, if you want someone to help you, it would help them if you would > indicate the TV's model number.
> - Franc Zabkar
Thanks for the info, Franc. I'll hook up the computer again to the tv to get the registry info for you. The TV is a JVC AV8P575.
