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BDC
New registered user

Joined: 10 Feb 2006 Posts: 10 Location: Vietnam |
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STEREO ENCODER SE4 DSP+ |
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1. We connect SE4 DSP+ with MAX PRO3 and the LCD informs ERROR, we think the pins are in correct place.
2. We do not connect the cable above. The audio signal through SE4 DSP and SE4 DSP+ and MAX PRO3 is very noisy and weak.
Please help by some advises ASAP.
Thanks
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Fri Feb 10, 2006 2:10 am |
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pcs
Site master


Joined: 18 Jan 2002 Posts: 3092 Location: Radio Land |
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Did you connect I2C cable?
How long is the cable?
_________________ Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128 |
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Fri Feb 10, 2006 2:25 am |
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BDC
New registered user

Joined: 10 Feb 2006 Posts: 10 Location: Vietnam |
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 |  | Did you connect I2C cable? Yes, the cable supplied by PCS.
How long is the cable? | It is about 20cm
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Fri Feb 10, 2006 2:43 am |
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pcs
Site master


Joined: 18 Jan 2002 Posts: 3092 Location: Radio Land |
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Its a bit long.
I suggest you try 2 things for a start:
1.) Make sure ground connection is correct. Now try to swap
the other two around.
2.) Try to shorten it up a bit, at least for a test.
If this fails, look at the two diodes close to eachother on the
SE4 board. Replace one of them with a low-drop shotky,
such as BAT85 or other cheap general use type.
_________________ Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128 |
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Fri Feb 10, 2006 10:12 am |
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BDC
New registered user

Joined: 10 Feb 2006 Posts: 10 Location: Vietnam |
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Thank you. It works. |
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 |  | Its a bit long.
I suggest you try 2 things for a start:
1.) Make sure ground connection is correct. Now try to swap
the other two around.
2.) Try to shorten it up a bit, at least for a test.
If this fails, look at the two diodes close to eachother on the
SE4 board. Replace one of them with a low-drop shotky,
such as BAT85 or other cheap general use type. |
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Wed Sep 27, 2006 10:48 am |
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BDC
New registered user

Joined: 10 Feb 2006 Posts: 10 Location: Vietnam |
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Re: Thank you. It works. |
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We have now other problem. We used SE3+ stereo coder before and very satified with it. Now we have SE4 DSP+ and found that the ouput audio level is very low. The input is standard. Has anyone an advise for me?
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Wed Sep 27, 2006 11:01 am |
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pcs
Site master


Joined: 18 Jan 2002 Posts: 3092 Location: Radio Land |
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Note that there are jumpers which let you select the output level.
Also, LCD control module or I2C cable to MP3+ must be connected in order for
stereo encoder to work.
_________________ Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128 |
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Wed Sep 27, 2006 11:02 am |
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BDC
New registered user

Joined: 10 Feb 2006 Posts: 10 Location: Vietnam |
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Yes. We tried 1V, 2V, 4V but nothing changes coder audio level out. We have I2C connected.
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Thu Sep 28, 2006 3:44 am |
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pcs
Site master


Joined: 18 Jan 2002 Posts: 3092 Location: Radio Land |
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You can quickly inspect solders on the board to see if any component is not fully soldered.
I am preparing a troubleshooting/repair guide for these units with test measuring points
so this should help you find the problem. Probably will finish it today or tomorrow.
I'll post it in the forum under manuals.
_________________ Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128 |
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Thu Sep 28, 2006 9:01 am |
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pcs
Site master


Joined: 18 Jan 2002 Posts: 3092 Location: Radio Land |
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I have something that might. Can I email it directly?
_________________ Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128 |
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Thu Sep 28, 2006 3:47 pm |
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