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DLPDLCR2000EVM: dlp lightcrafter 2000 not booting

Part Number: DLPDLCR2000EVM
Other Parts Discussed in Thread: DLPC2607

hello,

can anyone help me here? this is sanjay calling from india.

i got 2 dlp-lightcrafter-2000.

first one I accidentally  plugged in 9v and it just got hot at the right corner( below black projector set up). I sensed a burnt smell and it got hot despite me pulling down suddenly.

I did then plugged 5 v, 1 amp and there is no splash screen. And nothing seems to really happening. the leds go on and off when hands are near it but nothing really happens.

before plugging 9 volts, i had tried to supply power from raspberry pi 3( jumper j3 and ground). because it did not seem to work i ventured in to 9volts( it was plugged in for a very short time. i pulled out the moment i sensed the heat. may be it was too late. i have no clue)

the second one works perfectly( I did not plug inn 9 volts here. after first experience)

Is there no sort of voltage protection? is power supply not adequate for the first one hence it is not booting? or the first one just had some sort of failure at display? it got hot at the right bottom! Or it is more likely to work at 5 v and 3A only?

the second one works at 5 v, 1 amp supply( this one i have not tried from raspberry pi 3 )

can the first one be salvaged? I really needed both of them. texas instruments does not have any seller here( bangalore). I got it from mouser.com straight from states and incurred massive tax locally.

any sort of help is appreciated.

  • Sanjay,

    The DLPDLCR2000EVM is designed to work with a 5V-3A supply. It is very likely that you burnt out a regulator in using a 9V supply. In this case, you will probably need to either replace or repair your system.

    I highly suggest you contact TI.com store support:
    www.ti.com/.../contactus.page

    If you decide to try to repair your system, you can also refer to the TI Design, which includes a schematic and bill of materials. If, however, the controller is fried and not just the voltage regulator, there may not be much you can do:
    www.ti.com/.../tida-01473

    I apologize for the inconvenience.

    Best Regards,
    Philippe Dollo
  • hi phillip,

    ---still the boot led light comes and goes the d2, led does not take off.

    ---the 9 volts was just giving 0.5 amp. so not sure voltage has such a say than wattage( 5*3 =15 w vs 9 *0.5=4.5 w).  so too smart wont work.

    ----is 5 v*3 amp, sacrosanct? the second dlplight2000 worked with 5 v , 1 amp( the first one wont do led boot switch's on and goes off and projector led wont take off

    ---I noticed a burnt smell on the right bottom near the opto-engine( bronze covers). but no fume or anything came out. so something also got fried( not sure the chip itself). can i open that part and look? there is only chip inside. not sure the char smell was from inside. the regulators are on the left side. so something is up.

    -

    ---if regulators  just needs to be replaced they are:

    TPS71501
    REGULATOR
    TLV809I50DBZT
    Texas InstrumentsC                       REG BUCK SYNC ADJ TSOT23-5
    VOLTAGE SUPERVISOR and
    so should I first replace them? not sure they are available locally but I will look. have to catch some one to do smd soldering.
    --I am having tough time configuring the working one as i2c is not detected from raspberry pi( again because of no 5 v and 3 amp?)
    I really appreciate your inputs.
  • Sanjay,

    I am sorry about your system becoming damaged. I cannot guarantee the system will work even if you replace most of the components, as any critical system components may have been damaged by the incorrect power supply feeding to the system.

    As I said before, be sure to contact TI support if you have not already.

    Best Regards,
    Philippe Dollo
  • yes, the indian tech phone number was not working. . mean while i was stuck with i2c( not working on raspberry pi 3. not sure something wrong with pi). I have to try to send i2c from arduino. Are there any scripts to help with this? i do not want to write something wrong and mess up the one that is working( both are new and I am already sad that one has gone bust). so give it some time.
  • Sanjay,

    A list of available I2C commands is available in the DLPC2607 programmer's guide:
    www.ti.com/.../dlpu013.pdf

    You can find example python scripts to assist in development here:
    github.com/.../DLPDLCR2000

    I hope this helps.

    Best Regards,
    Philippe Dollo
  • go things going. they have asked me to send the part to look at it. it has gone burst for sure. but circuit design seems to be quite fragile. meaning it might have not stopped the damage in its tracks(the regulators) it might have propagated down the line. meaning the regulator failed and once it failed it was like levee broken( if it just broke the circuit the damage may not be much). this is hard to diagnose. I am not sure they have that kind of expertise to rectify the part. they asked me to post it and they will take a look at it.

    I will do that. will close the thread in few days. so that i write the update rather than opening a new one.

    yes, i am yet to put together the other one . I will try in a day or two.
    you have been quite helpful.
  • I mean i will go for the repair if it cost half the price of the product. can they give me a used evm or something. I dont know. I wont expect that kind of generosity. but i also want to suggest an improvement in a circuit. the first regulator must be a check point. if it fails it will break the circuit. meaning it acts as a shunt. so that the damage is not punishing like right now( it seems to be). the damage seems to have propagated as you said.
    we have to wait and see.
  • i bought a beagle-bone. so this one i wont take any chances. one day i might need to buy more powerful and expensive dlps. so better face 100 dollar damage than 500 to 1000 dollar ones.
  • It appears we have duplicate threads on this topic, so I will tentatively close this particular thread.

    Best Regards,
    Philippe Dollo