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Post by Decibel on Jul 5, 2015 13:27:25 GMT -5
I just realized that the in the SMPS sub board result totally missing cap C604 100uF 50v how is possible?
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Post by Decibel on Jul 5, 2015 12:47:25 GMT -5
You need to go right to the controller board to SR4 and test for your ++9v. If you cannot test it with it installed and running then you need to solder a piece of wire to it and extend it to the outside of the projector so you can test on it. If your ++9v is low then you need to remove SR4 and retest, making sure your solder wire is on the incoming pad from the SMPS to see if it comes up to the required voltage. This will tell you if it is the SMPS or on the controller. I just tested the voltage at pin SR4. Seems there is only 2.8v.
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Post by Decibel on Jul 5, 2015 4:24:38 GMT -5
I disconnected cable from connector of motherboard and inserted extra cable. So the internal remote was completely disconnected. This evening I'll try pulling controller tray (and removing HV board).
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Post by Decibel on Jul 5, 2015 3:38:48 GMT -5
How check ++9v? Can I put an extra cable to smps sub board (pin10)?
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Post by Decibel on Jul 5, 2015 3:37:09 GMT -5
You also can do basic test of your internal remote also by disconnecting it and put a 9v batterie and put it at the the connector through the wires of a resistor (or something fitting in there) pin 4 - batterie and pin2 + batterie ,i just tested this myself and it works this safer than going in the projector and making unintentional shorts. I have put an extra cable from motherboard in internal remote connector. There's 2.5/3.0v at pin.
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Post by Decibel on Jul 4, 2015 7:06:21 GMT -5
I tried to swap whole SMPS board with a spare of my friend. It have newer version with 560uF caps.
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Post by Decibel on Jul 4, 2015 4:18:35 GMT -5
Have you disconnected the internal remote where it connects to the mainboard as i asked you to try yet?? I cant see where you have reported on that. I'll try this evening.
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Post by Decibel on Jul 4, 2015 4:04:59 GMT -5
No reactions from internal remote, no backlit, no green led, nothing. It appear completely dead.
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Post by Decibel on Jul 4, 2015 1:51:03 GMT -5
I tried also replace cap. No acknowledge. I think that my controller is definitely dead.
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Post by Decibel on Jul 4, 2015 0:28:26 GMT -5
And guess what mine has there in that spot??? Yes same cap Hulio said it is not the cause of the fault, but after replacing the cap, the software recognized the projector and he was able to reprogram the firmware.
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Post by Decibel on Jul 3, 2015 10:37:59 GMT -5
It's done by barco my boards have them to. So Decibel i wonder why your max starts up without the jumpers shouln't it be in stby? have not yet understand if the jumpers must be closed or open. I'm sure that the previous owner did not put his hands into the projector. So if the jumpers are open as I found when I opened for first time the projector, it means that this is the normal operating condition.
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Post by Decibel on Jul 3, 2015 10:10:15 GMT -5
My friend is far from here. However yes ... this board cause squeal from SMPS so I exclude this board in my test.
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Post by Decibel on Jul 3, 2015 9:07:29 GMT -5
For my memory and forum. Cap is C201 and value is 100N K 50.
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Post by Decibel on Jul 3, 2015 9:01:02 GMT -5
Hulio can you tell the component number of the smd capacitor that you replaced at your controllerboard and how you know it was defective ? Sure, no problem. It was C201 from I/O & Supply section. The controller came from a mil. simulator with a sticker mensioning "defect" on it. Hulio! Here my controller!
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Post by Decibel on Jul 3, 2015 8:48:35 GMT -5
Hey Hulio! Also my controller have an electrolitic cap in this place!
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