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Old 11th July 2006, 07:57 PM   #1
B.I.G is offline B.I.G  Romania
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Default Sony CDX-M8800

i need a service manual for a SONY CDX-M8800 .

the big flourescent screen died on me when i started the car something wrong with the car electrical system !

i fixed the screen (the transistor that was driving the smps for the vacuum tube died) but i touched two pins from the connector going from the faceplate to the main board , one of the pins is rated OPEN and the other -10V .

now the open button an the faceplate doesnt work and if i start the HU from the remote none of the buttons on the HU work only the remote buttons ! and if i start the HU from the faceplate the remote does not work ! only the OFF button then i have to push SOURCE and start it from the remote

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Old 24th July 2006, 09:28 AM   #2
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Hello, please would you tell me the code and name for transistor that is driving the smps for the vacuum tube, my has burned out and i cant find schematics for it.

sorry for my bad english
Sony cdx-m8800


Regards

cableguybl

cable@teol.net
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Old 24th July 2006, 10:11 AM   #3
es44 is offline es44  Denmark
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You should both try Sharefx
I know there's a complete service-manual for that model there.
Best regards
Ebbe
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Old 25th July 2006, 12:49 PM   #4
B.I.G is offline B.I.G  Romania
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i don`t have the code because mine was destroyed !

i replaced with a BD139 i think or BD140 ! it is NPN or PNP can`t remember witch it works great now
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Old 26th July 2006, 01:32 PM   #5
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Thank you very much, i will now find transistor and try to fix the problem

Best regards
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Old 31st July 2006, 11:47 AM   #6
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Default cdx-m8800

I found scheme for sony cdx-m8800, if you need just e-mail to me and i will send you.


Cable@teol.net
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Old 4th August 2006, 03:27 PM   #7
B.I.G is offline B.I.G  Romania
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constantin.cioringa@s-man.net
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Old 4th August 2006, 03:28 PM   #8
B.I.G is offline B.I.G  Romania
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the transistor is a BD139 . i think it would be better to put a mos-fet but this is the only one i had .

thanks
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Old 5th August 2006, 01:45 PM   #9
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yes, but now i burned out other transistor, dc-dc converter RSQ035P03
now i have problem
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Old 6th August 2006, 08:43 AM   #10
B.I.G is offline B.I.G  Romania
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i don`t know wich one ? send me the schematics !

constantin.cioringa@s-man.net
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