View previous topic :: View next topic |
Author |
Message |
Harcoreta
Joined: 04 Apr 2020 Posts: 3
|
Link Posted: Sun Apr 12, 2020 3:11 pm Post subject: Help bypassing JVC RS46/X35 ballast |
|
|
Im new in this amazing forum
I have a JVC RS46 (same model as X35), and I'm planning if it's possible a modification for bypass the ballast security control, and I could use an external light source. There are now high power leds (50W or 100W) and with the right optics I hope it could work, I would like to fill a 145"-150" screen
I'm using now an EPSON TW9000 with a LPE filter with good results, but I would like to use the JVC in the same room.
Is there someone with experience in modifications on JVC projectors? Any suggestions will be greatly appreciated
regards!
|
|
Back to top |
|
|
AnalogRocks Forum Moderator
Joined: 08 Mar 2006 Posts: 26690 Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
|
Link Posted: Sun Apr 12, 2020 6:07 pm Post subject: |
|
|
There was a guy on here that started his own forum after a falling out some years ago. He would be the right man for the job. His handle is Mac.
Anyone remember the www for Mac's forum?
_________________ Tech support for nothing
CRT.
HD done right!
|
|
Back to top |
|
|
kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17860 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
|
|
Back to top |
|
|
AnalogRocks Forum Moderator
Joined: 08 Mar 2006 Posts: 26690 Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
|
Link Posted: Mon Apr 13, 2020 2:19 am Post subject: |
|
|
kal wrote: | <link removed>
Kal |
Yes! That's the one.
_________________ Tech support for nothing
CRT.
HD done right!
|
|
Back to top |
|
|
Harcoreta
Joined: 04 Apr 2020 Posts: 3
|
Link Posted: Mon Apr 13, 2020 12:55 pm Post subject: |
|
|
Thank you guys!!!
I could see an interesting thread about repairing a JVC ballast.
I'll post an update if the modification project starts.
|
|
Back to top |
|
|
AnalogRocks Forum Moderator
Joined: 08 Mar 2006 Posts: 26690 Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
|
Link Posted: Wed Apr 15, 2020 7:31 pm Post subject: |
|
|
Harcoreta wrote: | Thank you guys!!!
I could see an interesting thread about repairing a JVC ballast.
I'll post an update if the modification project starts. |
Yes please let us know. Good luck!
_________________ Tech support for nothing
CRT.
HD done right!
|
|
Back to top |
|
|
Harcoreta
Joined: 04 Apr 2020 Posts: 3
|
Link Posted: Mon May 25, 2020 7:22 am Post subject: |
|
|
Ballast bypass done!
Few days ago I could take the projector, it was in my parents home. And past weekend I disassembled the projector and connect a logic analyzer to the ballast. I was looking for a communication protocol over serial ttl that is now present on new projectors, but in this model is using discrete signals only. I did a short circuit on the optocoupler that carry the lamp status signal and It worked, the projector works perfect without a lamp, power connector on ballast was also removed. Tested with a 3W led, the luminance is too low, but enough to check that it works
I've attached the possible short circuits you can do for do the bypass, on the control board or on the ballast, I did the short circuit on the optocoupler because it's easier to solder, the connectors and pins are very small.
I also have planned to do dynamic lighting, like a dynamic iris but controlling the led power. The code is also done . I bought a cheap programmable power supply (DPM8608), and with the ffms2.dll plugin that works with avisynth you can log to an archive the average luminance in the scene. I did a simple script in powershell to take that information and send the desired voltaje command to the power supply. I suppose the code can be improved, I'm not a programmer, but it works very well , I used only a computer with a usb serial ttl. Possible It will be the first cheap JVC projector (not dla-Z1) with ∞:1 contrast xD
Now I'm anxious waiting for the high power leds. I bought 100W and 150W and hope to be enough, next step build the new led housing
Regards
|
|
Back to top |
|
|
pureaudio
Joined: 29 Mar 2015 Posts: 37
|
Link Posted: Mon Nov 16, 2020 1:42 pm Post subject: |
|
|
kal wrote: | <link removed>
Kal |
Just a question about linking to other forums. Is it allowed or not? I did so to help another member and got a warning from Curt Palme, stating, One warning only.
Its a bit confusing to navigate around rules that dont apply to everybody.
Would it be ok if i had posted the above link in this thread?
|
|
Back to top |
|
|
kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17860 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
|
|
Back to top |
|
|
pureaudio
Joined: 29 Mar 2015 Posts: 37
|
Link Posted: Mon Nov 16, 2020 6:31 pm Post subject: |
|
|
kal wrote: | As a general rule I don't have any issues with people posting links to elsewhere as long as they're not spamming sales-type posts. (i.e. "Click here to buy bitcoins!" type stuff).
You'd probably have to ask Curt. It may be because the person who runs that other site left here on bad terms.
Kal |
Might be a idea to make a list so the moderation would be a bit more uniform, i linked to the same forum as you did here, and apparently thats ok with you but not ok with Curt, now the question is then who is the man with the stick?
Everybody would expect that when the man running the forum post a link to another forum its not on the banned list, except that when i post the same im told that it was the first and last warning, might explain the very limited activity on this forum, not even a single post about the new JVC N series firmware that came out the other day.
Question is should i take Curts warning serious, or should i follow your example?
|
|
Back to top |
|
|
Curt Palme CRT Tech
Joined: 08 Mar 2006 Posts: 24305 Location: Langley, BC
TV/Projector: All of them!
|
Link Posted: Mon Nov 16, 2020 6:49 pm Post subject: |
|
|
pureaudio wrote: | kal wrote: | <link removed>
Kal |
Just a question about linking to other forums. Is it allowed or not? I did so to help another member and got a warning from Curt Palme, stating, One warning only.
Its a bit confusing to navigate around rules that dont apply to everybody.
Would it be ok if i had posted the above link in this thread? |
Generally I don't care, but I am wary of 'new' members that clearly have/had a different profile here, and hide behind a new profile. Kal already asked you who you were when you started posting, and you didn't reply. With the secret sub forums on other groups that are really good at bashing this forum, I have no time for trolls or fake/alternate/duplicate accounts.
|
|
Back to top |
|
|
kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17860 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
|
Link Posted: Mon Nov 16, 2020 7:22 pm Post subject: |
|
|
pureaudio wrote: | Might be a idea to make a list so the moderation would be a bit more uniform |
The list is here: http://www.curtpalme.com/forum/viewtopic.php?t=5
As Curt mentioned: You've posted some very detailed comments about the history of our forum here that seem to show you've been around here for quite some time (longer than your current membership). I forgot about that. I asked you previously what your previous user name was and you never responded like Curt said. So I'll ask again: What was your previous user name here?
Kal
_________________
Support our site by using our affiliate links. We thank you!
My basement/HT/bar/brewery build 2.0
Last edited by kal on Tue Nov 17, 2020 2:34 pm; edited 2 times in total
|
|
Back to top |
|
|
pureaudio
Joined: 29 Mar 2015 Posts: 37
|
Link Posted: Mon Nov 16, 2020 8:15 pm Post subject: |
|
|
kal wrote: | pureaudio wrote: | Might be a idea to make a list so the moderation would be a bit more uniform |
The list is here: http://www.curtpalme.com/forum/viewtopic.php?t=5
As Curt mentioned: You've posted some very detailed comments about the history of our forum here that seem to show you've been around here for quite some time (longer than your current membership). I forgot about that. I asked you previously what your previous user name was and you never responded like Curt said. So I'll ask again: What was your previous user name here?
Kal |
You would make a great politician.
I ask a very simple question, is it ok i post a link to the same forum you posted in this thread or not? yes or no please.
And you reply with nothing but questions you have asked and got the answer to already, so please go read it one more time, or let me know, and ill find and copy past it to you.
|
|
Back to top |
|
|
Curt Palme CRT Tech
Joined: 08 Mar 2006 Posts: 24305 Location: Langley, BC
TV/Projector: All of them!
|
Link Posted: Mon Nov 16, 2020 9:30 pm Post subject: |
|
|
No.
|
|
Back to top |
|
|
pureaudio
Joined: 29 Mar 2015 Posts: 37
|
Link Posted: Tue Nov 17, 2020 11:13 am Post subject: |
|
|
Argumentative OT post against the website owner and mods removed. Please stay [at least reasonably] on topic and be nice to others. See the forum rules. Thank you. - Mods
|
|
Back to top |
|
|
pureaudio
Joined: 29 Mar 2015 Posts: 37
|
Link Posted: Tue Nov 17, 2020 2:21 pm Post subject: |
|
|
Second argumentative OT post removed
|
|
Back to top |
|
|
kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17860 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
|
Link Posted: Tue Nov 17, 2020 2:44 pm Post subject: |
|
|
PureAudio: You're not posting a link to where you previously explained to us who you are as promised. Clearly there is no previous post you can link to as you mentioned as there is none (you only have 21 posts so it's simple to check). You are simply bitching and complaining and posting thoughts from others you may have read on other forums. We don't need that here. It serves no purpose.
So never mind, as you don't have a post to link to. Please drop it and stay on topic, and be nice to others.
Kal
_________________
Support our site by using our affiliate links. We thank you!
My basement/HT/bar/brewery build 2.0
|
|
Back to top |
|
|
pureaudio
Joined: 29 Mar 2015 Posts: 37
|
Link Posted: Tue Nov 17, 2020 3:56 pm Post subject: |
|
|
kal wrote: | PureAudio: You're not posting a link to where you previously explained to us who you are. You are simply bitching and complaining. Clearly there is not previous post you can link to as you mentioned as there is none (you only have 21 posts so it's simple to check).
So never mind - you don't have a post to link to. Please drop it and stay on topic, and be nice to others.
Kal |
My post where i explained it was deleted, so i cant link to it, but i think i can find the post in my mail, and repost it if your interested in getting it reposted? Question is if you want it or not.
Original intentions was to get a short and specific answer to why you can post the link you did, but others are not allowed to, and you then expand that to a discussion about who i am, and banned members on this site, which you clearly dont like me to answer, as you deleted the answer in the past.
What i the answer you like to hear, who do you want me to be?
|
|
Back to top |
|
|
kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17860 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
|
|
Back to top |
|
|
pureaudio
Joined: 29 Mar 2015 Posts: 37
|
Link Posted: Tue Nov 17, 2020 5:05 pm Post subject: |
|
|
kal wrote: | You don't need to post anything.
Curt has indicated he doesn't want you linking to that other forum so it shouldn't be done by anyone.
I've now gone through this thread and removed all mentions of that forum to avoid confusion.
Kal |
Thanks, always nice to see moderators apply the same rules to themselves as they apply to others.
|
|
Back to top |
|
|
|
|