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Post by Decibel on Mar 26, 2019 18:28:05 GMT -5
and I would like to ask if have any idea about the remote control... thanks Yes we would to measure the voltages. Where I can apply the stabilized power supply? |
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Post by mastertech on Mar 26, 2019 19:01:52 GMT -5
I can guide you to where to start looking but you have to be willing to test some voltages and you did not seem interested in this the last time. So I have stayed quiet.
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Post by Decibel on Mar 27, 2019 2:02:45 GMT -5
I can guide you to where to start looking but you have to be willing to test some voltages and you did not seem interested in this the last time. So I have stayed quiet. I didn't have the right tool to take measurements. I bought it specifically. Now I'm ready to take the measurements  |
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Post by Decibel on Mar 27, 2019 3:49:31 GMT -5
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Post by mastertech on Mar 27, 2019 11:12:06 GMT -5
Well I am not sure why you would think you need that to do testing. Actually you just need to solder on some fly wires long enough to exit the projector when the controller is mounted so you can then do voltage measurements while the projector is running.
Using an external power supply in this instance would not really be wise since you might end up bypassing an area where a problem could exist.
Any questions?
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Post by Decibel on Mar 27, 2019 12:30:54 GMT -5
Ok I will solder wires. What's the first point that I can test? |
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Post by mastertech on Mar 27, 2019 12:56:15 GMT -5
Ok, couple quick questions first.
1) Did you verify that the problem only exists on this controller? Remotes work fine with a different controller?
2) Where does built in control connect to the controller?
3) When you say "remote" you mean wireless remote, correct? Just want to make sure translation is correct.
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Post by Decibel on Mar 27, 2019 13:08:02 GMT -5
Ok, couple quick questions first. 1) Did you verify that the problem only exists on this controller? Remotes work fine with a different controller? 2) Where does built in control connect to the controller? 3) When you say "remote" you mean wireless remote, correct? Just want to make sure translation is correct. 1) yes, if I reinsert the my tray (so my controller) both remotes (built in and wireless) work perfectly. 2) I don't understand this answer 3) yes, ok I will say "wireless" and "wired" for remotes. |
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Post by mastertech on Mar 27, 2019 13:17:40 GMT -5
. 2) Where does built in control connect to the controller? 2) I don't understand this answer A few posts back you said: What is built in control? The wired remote? |
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Post by Decibel on Mar 27, 2019 13:20:44 GMT -5
2) Where does built in control connect to the controller? The wired remote, If I'm not wrong is connected to the motherboard. I think that's a link from motherboard and controller. |
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Post by mastertech on Mar 27, 2019 13:27:21 GMT -5
Ok, good. Just wanted to make sure the translation is correct for me to understand properly. On the controller go to connector J810 (see image below) and test ++9v, +5VSB_REC and RC5_RCU for voltage. And while testing RC5_RCU press a button on wireless remote and see if voltage changes. Let me know what you get.  |
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Post by Decibel on Mar 27, 2019 14:35:11 GMT -5
Ok the results of measurements:
+9v:
In standby +9.0v
Power on +9.0v
-9v
In standby +0,25v
Power on -12,18v
+5VSB_REC
In standby +4,96v
Power on +4,96v
RC5_RCU
In standby +4,97v
Power on +4,97v
When push any buttons of wired of wireless remote the voltage of RC5_RCU goes down at 4,43v
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Post by mastertech on Mar 27, 2019 15:13:20 GMT -5
Ok, test the voltages in the picture.  |
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Post by Decibel on Mar 27, 2019 18:47:50 GMT -5
Ok, test the voltages in the picture. Ok which are the points?  |
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Post by mastertech on Mar 27, 2019 19:10:42 GMT -5
Well I am not able to see just where all those traces go but it looks like you can test where I have placed the blue arrows. Where are you connecting for ground probe?  |
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