Question about Emerson MS3100 3-Disc CD Changer

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Speaker Problems Like a few others here, one of the speakers is not functioning properly. The left output works 100% of the time, and the right side does not. If you isolate the right side, and turn the volume to max, the song playing can faintly be heard. Is there something I can do about this?

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  • Paul Deane Feb 29, 2008

    Jim,

    First, thank you for the timely response. Both of the speakers are working properly as discovered by switching them. The problem must be the right channel audio amplifier. Is there a way I can fix this?

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Can you swap speakers and see if the left working speaker works when plugged into the right output?

If it does, then your right speaker is bad or the right speaker cable/plug may be bad.

If the working left speaker doesn't work on the right output, then I would suspect a problem in the right channel audio amplifier.

Please let me know if I can be of further assistance to you.

Good luck!

- Jim

Posted on Feb 29, 2008

  • SHARCNET-USA
    SHARCNET-USA Feb 29, 2008

    Yes, it can be fixed. The audio amplifier is either defective or perhaps there is a bad solder joint on the terminals.



    The audio amplifier is usually a module with a metal tab that is bolted to a piece of metal, like the chassis. Since this is a stereo, there will usually be two of these (for right & left) unless both channels are in one package.



    I'd locate the right module and see if the solder joints look good. If they look okay, then the module will need to be replaced. You'll need to locate the part number on the module package and you can try to contact a company like www.mcmelectronics.com

    and see if they carry a replacement part.



    I would not try to replace this part unless you have adequate desoldering/soldering experience. In this case, you'll need to take it to a repair facility to be repaired.



    - Jim


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Need to wire up a factory radio plug for 2003 chevy tahoe z71 with bose premium system. need to know what wire gose in what pin in the plug. SOMEONE PLEASE HELP ME!!! PLEASE!!!


Connector Part Information
?€¢
12110088 (Except UQ7 w/o Y91)


?€¢
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?€¢
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?€¢
24-Way F Micro-Pack 100 Series (GRN) (UQ7 w/o Y91)

Pin
Wire Color
Circuit No.
Function
A1
ORN
1044
Radio Class 2 Serial Data
A2
--
--
Not Used
A3
PPL
493
Rear Seat Audio Enable Signal (UQ7 w/o Y91)
A4
RED
1486
FM Composite Signal (UQ7 w/ Y91)
A5-A7
--
--
Not Used
A8
TAN
201
Left Front Speaker Output (+) (UQ3/UQ5)
A8
TAN
511
Left Front Low Level Audio Signal (+) (UQ7)
A9
GRY
118
Left Front Speaker Output (-) (UQ3/UQ5)
A9
DK GRN
1947
Left Front Low Level Audio Signal (-) (UQ7)
A10
LT BLU
115
Right Rear Speaker Output (-) (UQ3/UQ5)
A10
BLK
1946
Right Rear Low Level Audio Signal (-) (UQ7)
A11
DK BLU
46
Right Rear Speaker Output (+) (UQ3/UQ5)
A11
DK BLU
546
Right Rear Low Level Audio Signal (+) (UQ7)
A12
BLK/WHT
1851
Ground
B1
ORN
340
Battery Positive Voltage
B2
--
--
Not Used
B3
PNK
314
Radio On Signal (UQ7 w/o Y91)
B3
DK GRN
145
Antenna Enable Signal (UQ7 w/ Y91)
B4
BRN/WHT
230
Instrument Panel Lamps Dimming Control (w/ Y91)
B5
BLK/WHT
1851
Ground (w/ Y91)
B6
GRY/BLK
2334
Radio Mute (UQ7 w/o Y91)
B7
--
--
Not Used
B8
BRN
199
Left Rear Speaker Output (+) (UQ3/UQ5)
B8
BRN
599
Left Rear Low Level Audio Signal (+) (UQ7)
B9
YEL
116
Left Rear Speaker Output (-) (UQ3/UQ5)
B9
DK GRN/
WHT
1547
Left Rear Low Level Audio Signal (-) (UQ7)
B10
DK GRN
200
Right Front Speaker Output (+) (UQ3/UQ5)
B10
ORN/BLK
1546
Right Front Low Level Audio Signal (-) (UQ7)
B11
LT GRN
117
Right Front Speaker Output (-) (UQ3/UQ5)
B11
LT GRN
512
Right Front Low Level Audio Signal (+) (UQ7)
B12
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Monsoon System Pinouts

--------------------------------------------------------------------------------

Pin Wire Color Function
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F16 LT GRN/BLK Left Subwoofer Speaker Outlet (-)

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http://www.grandamgt.com/forum/forumdisplay.php?f=76

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