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Post by Decibel on Aug 29, 2015 23:50:03 GMT -5
In my Cinemax the wired remote is always dead. Yesterday I checked the voltages that come from motherboard. There is a multipolar connector with four pins. There are correct ++9 and 5v. So the issue in my opinion is in built-in remote unit. Hulio has posted the diagram of this unit. Thank you Hulio  repairalmostanything.proboards.com/post/4771/thread/182 |
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Post by gjaky on Aug 30, 2015 5:33:09 GMT -5
As it was suggested check Z2 if it is not opened (test just like any other diode), also check Z5 for short.
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Post by dummyload on Aug 30, 2015 5:50:20 GMT -5
The internal remote only uses the ++9v so remove the remote from the panel and measure on the pcb of the remote if the ++9v is present pin4 is ground pin2 is ++9v ,if not present check wires and connector for break (ohm meter ,projector power of). If present measure over r42 or c6 or c7 (you can choose ) if the +3v is present ,if not check z2 .
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Post by Decibel on Aug 30, 2015 5:53:13 GMT -5
As it was suggested check Z2 if it is not opened (test just like any other diode), also check Z5 for short. Seems not short. Meter set in diode show 929 for Z2. 945 for Z1. There isn't Z5. 710 for D10 |
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Post by dummyload on Aug 30, 2015 5:53:37 GMT -5
Sorry gjaky, had not seen you`re replay yet. (I'm too slow to translate)
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Post by Decibel on Aug 30, 2015 5:55:55 GMT -5
so remove the remote from the panel and measure on the pcb of the remote if the ++9v is present pin4 is ground pin2 is ++9v I wrote that ++9 is present in pin2 |
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Post by dummyload on Aug 30, 2015 5:59:55 GMT -5
Then check if you have +3v on r42 or c6 or c7 .
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Post by dummyload on Aug 30, 2015 6:26:21 GMT -5
When you measure ++9v on the remote pcb pin 2 the negatieve lead of the voltmeter is also on the remote pcb pin 4 right?
Just to be sure you are not using the projector as a ground.
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Post by Decibel on Aug 30, 2015 9:35:55 GMT -5
Then check if you have +3v on r42 or c6 or c7 . Absolutely no voltages in C6 or C7. There isn't R42 in my pcb. However I just checked a broken line in the pcb. See picture below. Now I solder this hole and will report the results.  |
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Post by Decibel on Aug 30, 2015 10:38:27 GMT -5
Yeah! ☺☺☺☺  |
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Post by hulio on Aug 30, 2015 11:37:26 GMT -5
Well done, Domenico.
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Post by Decibel on Aug 30, 2015 11:59:21 GMT -5
Thanks to all |
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Deleted
Deleted Member
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Post by Deleted on Aug 30, 2015 12:49:01 GMT -5
Great! Congrats!
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Post by Casethecorvetteman on Sept 3, 2015 4:38:12 GMT -5
Youre getting good at this |
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