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Part Number: DLPDLCR3310EVM
Hi good morning,
I have a problem with the unit, basically the 3v transistors dont work and the optical system is damage also, so the image cant be project.
Which could be the reason of the problem?
We can not tell before analyzing anything, you need to debug the unit.
When you are saying optical system damage... what does that mean, is DMD bad or the projection lens/optics gone bad. Could you please explain in more detail.
How did you check that 3V transistor doesn't work, Have you applied the correct voltage to the EVM as mentioned in the user guide ?
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In reply to Navneet Singh:
Hi Navneet, thanks for your answer
Let me explain you, regarding the optical system, yes at the beginning was projecting the image from a laptop and even a video but after a few minutes stop projecting the image and the led that indicates that is the 3v3 conversor stop flashing.
About how we tested the 3V transistor, yes we followed all the steps as the users guide says, including the proper voltage. We connected the power source then the leds (5V and 3v3) turned on and then we swicth on.
If you need something else to know please let me knoe.
In reply to Manuel Baez:
We need to debug this EVM, can you probe the following signals and measure the voltages.
you can get the schematic here : http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=tidrx38&fileType=zip
PROJ_ON, RESETZ , INTZ, Supply from DLPA (1.1V, 1.8V, 2.5V, 3.3V), D1 led status, J7 (pin1 and pin2), LED_SEL_0, LED_SEL_1, CMP_OUT, VOFS, VBIAS, VRST, P3P3V, P3P3V_SB, P5V, VCCDDR, P1P8V, P2P5V, VCCINT, FPGA_PWREN, P1P8V_PRE, VCCDDR, mHOST_IRQ, FPGA_RDY, FPGA_RESETZ,
Please share the status of all these signals.
Sure, we will do this and let you know
Any update on this...
The team are doing the tests for tomorrow I will have the results.
Give me some time, i will check and get back to you.
I did not get chance to look in to this, we are very much busy with other stuff.... please spare some more time, I will get back to you very soon.
I sent you the friend request on e2e, please accept the request.
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