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Old 18th February 2013, 10:18 PM   #31
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Did you reinstall R31?
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Old 18th February 2013, 10:21 PM   #32
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Yes r31 is installed.
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Old 18th February 2013, 10:43 PM   #33
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In the previous post where you listed the voltages on U17. The voltage on pin 4 wasn't right. It should have been near -10v. Re-check the voltage on that pin.

Also, with 8v+ on pin 6, I'd expect to see significant voltage on the speaker terminals unless the amp was in protect mode. Was the amp in protect mode?
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Old 18th February 2013, 10:58 PM   #34
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OK the voltage on pin 4 of the u17 is -9.62 the amps protect light comes on when the remote is first hooked up but it goes off in like 2 sec. the voltage on the speaker terminals is -1.476 I don't think the amp is in protect mode.
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Old 19th February 2013, 02:26 AM   #35
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You could have a bad opto-coupler or a bad driver.

The driver: MIC4420CT
The coupler: HPCL 2211

Sometimes when DC is out of wack in an amp it can blow other components in the circuit.

Do you have a scope?

I didnt see R44 in the schematic??

Can you post a pic?
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Old 19th February 2013, 02:37 AM   #36
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Hi Sean I don't know how to post a picture and no I don't have a scope. Is there anything I can test with my meter?
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Old 19th February 2013, 02:41 AM   #37
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Take a pic and download it to your computer.

Post, then scroll down to manage attatchments and click on it.

A box will open, then click browse.

Find the picture in your computer and double click it.

Then click upload.

Once the picture is uploaded you will see it under the manage attatchments link.

The submit reply.
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Old 19th February 2013, 02:43 AM   #38
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You could also post the DC voltage of U5, U15, and U6.
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Old 19th February 2013, 03:12 AM   #39
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OK Sean here is the voltage's
u5 U15 U6
1: 0 1: 0 1: -9.59
2: 8.33 2: -4.04 2: -9.59
3: 8.26 3: -3.41 3: 9.84
4: -9.61 4: 0 4: -9.59
5: 0 5: -9.61 5: -8.98
6: -7.32 6: 0
7: 9.83 7: -9.08
8: 0 8: 9.83

R44 is standing up next to the transformer.
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Old 19th February 2013, 03:20 AM   #40
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u5
1:0
2: 8.33
3: 8.26
4: -9.61
5:0
6: -7.32
7: 9.83
8:0

U6
1: -9.49
2: -9.59
3: 9.84
4:-9.59
5: -8.98

U15
1:0
2:-4.04
3: -3.41
4:0
5: -9.61
6: 0
7: -9.08
8: 9.83
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