Got a Panasonic PT-RZ470U Laser hybrid projector here, works fine, except it has 2 issues. First problem: It's a 3500 lumen projector. It currently has less brightness than a 1000 lumen HT PJ. Second issue: the brightness flickers in intensity. Now there's different modes and all that too of course for "cinema, living room" etc...
Switching to the dimmer modes makes the picture turn somewhat magenta of a tint. I feel this is related to the dimness issue as well.
Now there's nothing in the service menu to tweak the brightness. But I believe I saw in the service manual (or somewhere else) that this can be adjusted, a setting called "Drive current" for the laser light engine. This setting can only be altered though, using the Panasonic service software that I obviously cannot get.
So, taking that ability out of the equation, is it possible this can be fixed with servicing the laser/LED ballast or PSU? Obviously something must be weak for it to be flickering and so dim. The laser phosphor wheel looks perfect, and the LEDs and laser diodes do too. The projector has 8600 hours out of an expected 20,000 hour lifespan on the laser engine.
Also, since the brightness flickers evenly in intensity/color, (it gets dimmer as a whole, not just green or red or blue), I don't believe its the laser diodes or LEDs that are the issue, since the color stays the exact same, it just gets a bit dimmer when it flickers, which is all the time.
Any help would be appreciated, I know it's a long shot since the projector is fairly new.
analogrocks: Those are pretty pictures! Set one up running a ps1 or NES and sell them as retro gaming projectors. OR post them to me. Just put the stamps in the corner. Should make it just fine
Aug 28, 2020 16:28:01 GMT -5
iwwy1969: Hi all. Nice forum. I have Onkyo TX-NR616 no sound and no usb access. I have 5v at usb. I found that oscillator close to DSP is not working. It has no voltage feed from DSP. During the testing through display DSP shows version D??? .
Jul 13, 2020 8:25:33 GMT -5
lfcfan: Hi Todd, have been reading endlessly about the topic, and I really don't think that I'll be capable to 1. do the job myself as I don't have enough of the right equipment, and it looks like only the people who have access to TI exclusive distribution networ
Apr 9, 2020 17:17:06 GMT -5
skydronelink: Thank you I advance
Jan 29, 2020 4:01:41 GMT -5
skydronelink: Hi Repairaj, I have the same issue, but I am not able to get the cap value, I can tell it is the same board but deffirent rev cause of the side CAP is not the same value ! any idea how I can get the right burnt cap value?
Jan 29, 2020 4:01:31 GMT -5
skydronelink: Hello Jerme, thank you for the those images, is there is any chance to get the C2 (Cap) value or an image for it ? Thank you in advance.
Jan 27, 2020 23:15:06 GMT -5
skydronelink: Hello Sergio, I have the same issue, but I am not able to get the cap value, did find out what is the cap value?
Jan 26, 2020 18:01:17 GMT -5