Seek help here if anyone know what is causing my Marquee to loses all internally generated video. It seems that watching videos are not affected at all which is a good thing. But it's a problem for calibration as the green lines can't be seen for you to align blue or red tube to green tube.
Most likely the VIM is acting up, Try an other VIM.
Yes. Most likely the VIM where the video is being switched. Another possibility would be the CLM where the menus and test patterns are being generated. The least probable element would be the backplane where the VIM and the CLM are plugged into (contact problem). It would be wise checking the VIM's and CLM's edge connectors though...
Check U32 (74AC86). It's the only single IC involved. All other switching for red, green and blue is done with separate ICs (U13, U19, U25). If one of them failed You would only be missing the corresponding color of the internal video (not likely that all three fail at the same time)...
You're right Barclay, it's only the green and others are fine. And yes, it's on MP modded VIM.
thats quite normal.. They are normaly pretty flaky, I would try replace the ADG1233 switcher first, its also normal thet MP forgets some of the terminations, so if you have a good hi res image of the vim, of the miniboard and around, i might see it.. Unless you got one of the epoxy potted ones, then there is most likely no saving it.
By the way, is there anyway that I can improve my MP VIM like yours?
The one you have there is not worth the time, you would have to start by removing all existing mods, and at that point it would be better to start on a fresh, at this point your best option is to hang on and see how everything goes with Gjakys new boards.
The other option cant mod 2 boards without destroying at least 1 of them, and lately he has been so paranoid, that he has put so much epoxy potting on the shorts and things he forget or do wrong that it cant be saved.. The best of the options is the later ones with the ADG1233 switcher, if they are not potted to deadth, its actually possible to fix thise boards, and solve al the new problems created, and old ones not solved.
Last contact i had with his handy work was a cap mod on a LVPS, wich he manage to put some of the caps wrong and short the LVPS.. Its such a simple operation, and so simple to test, and still it became a huge clusterfuck.
OK. If that's the case, I would swapped ic U32 then as per Barclay advise.
Maybe I didn't describe this correctly: U32 could be causing the problem if ALL colors were missing. If only one color is missing, then U32 wouldn't have anything to do with it. On a stock VIM I would check U19 (SD5401 switcher). As Your board has been modded, it could be possible that U19 is missing or has been bypassed. In this case, the solution depends on the type of mod that has been applied and it could be possible that it can't be repaired without un-potting or replacing the mini board. In this context, Kurt's advice makes a lot of sense...
zjjxhzf: hello Gabor i am DLP projectorColor wheel is not accurate，setup memory， the phase angle cant setting for the color wheel ，must use service code.
Sept 19, 2017 1:31:25 GMT -5
mastertech: Hi stranger. Guess you spent your summer cruising on that street bike.
Sept 17, 2017 21:43:54 GMT -5
nashou: Hey everyone, just saying hi ! Hvent been here for a while hope you're all doing well !!
Sept 17, 2017 19:19:25 GMT -5
mastertech: Parts for repair are no longer available.
Sept 11, 2017 19:42:24 GMT -5
mayavi: my pioneer elite VSX-92TXH it freezes until I unplug and then it won't power on until maybe 10 minutes. came to know that its a common problem in this model. any help would be much appreciated......
Sept 11, 2017 13:39:10 GMT -5
jaredjaric: Thanks so much Hulio :), your expertise is very much respected
Aug 20, 2017 9:25:37 GMT -5
Admin: james: you need to post in the thread where your problem is being discussed.
Aug 9, 2017 19:51:54 GMT -5
james: Yes Sir All wiring was connected.
Aug 9, 2017 7:46:15 GMT -5
Admin: I have uploaded a copy of the SM to the digital projector section.
Jan 10, 2017 20:21:56 GMT -5
ducki: sorrry for my bad english ....(google translate
Jan 10, 2017 17:44:21 GMT -5
ducki: I have the same defect as a cp-x4021n you but can not start it ... I did the same trials with ic202 pc102 and still do not like, I make short pin 1 and 2 of the pc102 and PJ light (orange) goes off ... you can help me with a service manual for this PJ? TNX
Jan 10, 2017 17:43:46 GMT -5
jlb12: pwr switch off = 2(0.0) 3(11.7) 6(.04) 7(.04)
Dec 13, 2016 23:27:03 GMT -5
jlb12: No Problem. Thank you for all your help.
Dec 13, 2016 0:20:40 GMT -5