skatouch
Registered: 02/05/12
Posts: 66
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| Posted 29/05/12 at 06:01 PM | Reply with quote #1 |
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ESPsupport
Moderator
Registered: 27/01/09
Posts: 4,254
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| Posted 29/05/12 at 09:11 PM | Reply with quote #2 |
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You mean your display? Try reloading the PmmC  |
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skatouch
Registered: 02/05/12
Posts: 66
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| Posted 29/05/12 at 09:43 PM | Reply with quote #3 |
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| I just tried it but not work.
What now? |
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meldavia
Registered: 18/03/07
Posts: 900
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| Posted 30/05/12 at 12:16 AM | Reply with quote #4 |
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SORRY - you need to explain properly else we are unable to help ....
You say you are reloading PmmC - do you get an error code when you try and re-load PmmC ?
If PmmC loads properly, what error message do you get if you try to download a 4DGL program ?
What does the display show - if anything - can you download a program from the Workshop?.
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Regards,
Dave |
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skatouch
Registered: 02/05/12
Posts: 66
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| Posted 30/05/12 at 03:02 AM | Reply with quote #5 |
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The program PmmC loader give me this message: Unexpected response from display:- 0 and Workshop this message : Device is not responding. Please check yopur configuration. Have you got an SGC PmmC loaded by mistake?
The display does not turn on, it's all black.
I have another display and I can comunicate with it without problems.
Thanks |
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ESPsupport
Moderator
Registered: 27/01/09
Posts: 4,254
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| Posted 30/05/12 at 08:02 AM | Reply with quote #6 |
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You've got a uLCD-32PT, right? Check to see if you've blown the protection diode D1, it's on the VIN trace from the programming connector. |
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skatouch
Registered: 02/05/12
Posts: 66
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| Posted 30/05/12 at 06:18 PM | Reply with quote #7 |
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| The diode is ok.
What now?
Thanks |
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ESPsupport
Moderator
Registered: 27/01/09
Posts: 4,254
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| Posted 30/05/12 at 08:11 PM | Reply with quote #8 |
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Hmm, well, I presume you have 5v coming in and 3.3v after the regulator? Surprised it doesn't work then. If it's under warranty still I guess you need to email support at 4dsystems dot com dot au |
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skatouch
Registered: 02/05/12
Posts: 66
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| Posted 31/05/12 at 03:53 AM | Reply with quote #9 |
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| I mesured Vcc and 3.3 voltage on connector J2 (GFX setup) and I found about 1.6 V for Vcc and 0.64 V on pin 16 (should be 3.3).
what now? |
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simonfrfr
Registered: 06/09/11
Posts: 221
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| Posted 04/06/12 at 08:59 PM | Reply with quote #10 |
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Short the Diode if there is less than 5V after it. (just make a solder bridge)
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Simon |
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