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Crown XLS 402 D service manual needed...
Crown XLS 402 D service manual needed...
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Old 24th April 2010, 02:54 PM   #1
alexclaire is offline alexclaire  France
diyAudio Member
Join Date: May 2005
Location: Avesnes/Helpe
Default Crown XLS 402 D service manual needed...

Hi everyone,

I got a problem with a crown XLS 402 D power amplifier (i think 4th generation of XLS amp).

Power on and the channel 1 green signal led lights on fully, and the corresponding level pot has nearly no influence over sound level (channel 1).

The final stage seems to be ok, full power when rated voltage applied at the inputs.

Anyone has an idea ?

Looking for schematics or service manual as this model XLS 402 D is very different from previous versions...

XLS 402 schematics is easily available on the internet as this one isn't (maybe because this model isn't discontinued yet).

Thanks a lot.

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Old 24th April 2010, 04:08 PM   #2
birdyman is offline birdyman  United States
diyAudio Member
Join Date: Jan 2010
Call Crown. They are kind to send you one over email.
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