Sony CDX-M8800

B.I.G · 11th July 2006, 07:57 PM

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

cableguybl · 24th July 2006, 09:28 AM

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

es44 · 24th July 2006, 10:11 AM

You should both try Sharefx
I know there's a complete service-manual for that model there.
Best regards
Ebbe

B.I.G · 25th July 2006, 12:49 PM

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

cableguybl · 26th July 2006, 01:32 PM

Thank you very much, i will now find transistor and try to fix the problem

Best regards

cableguybl · 31st July 2006, 11:47 AM

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

Cable@teol.net

B.I.G · 4th August 2006, 03:27 PM

constantin.cioringa@s-man.net

B.I.G · 4th August 2006, 03:28 PM

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

cableguybl · 5th August 2006, 01:45 PM

yes, but now i burned out other transistor, dc-dc converter RSQ035P03
now i have problem

B.I.G · 6th August 2006, 08:43 AM

i don`t know wich one ? send me the schematics !

constantin.cioringa@s-man.net

11th July 2006, 07:57 PM	#1
B.I.G diyAudio Member Join Date: Mar 2004 Location: Home	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 __________________ B.I.G

25th July 2006, 12:49 PM	#4
B.I.G diyAudio Member Join Date: Mar 2004 Location: Home	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 __________________ B.I.G

31st July 2006, 11:47 AM	#6
cableguybl diyAudio Member Join Date: Jul 2006	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

4th August 2006, 03:27 PM	#7
B.I.G diyAudio Member Join Date: Mar 2004 Location: Home	constantin.cioringa@s-man.net __________________ B.I.G

4th August 2006, 03:28 PM	#8
B.I.G diyAudio Member Join Date: Mar 2004 Location: Home	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 __________________ B.I.G


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24th July 2006, 09:28 AM	#2
cableguybl diyAudio Member Join Date: Jul 2006	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

24th July 2006, 10:11 AM	#3
es44 diyAudio Member Join Date: Apr 2005 Location: Fredericia, DK	You should both try Sharefx I know there's a complete service-manual for that model there. Best regards Ebbe

26th July 2006, 01:32 PM	#5
cableguybl diyAudio Member Join Date: Jul 2006	Thank you very much, i will now find transistor and try to fix the problem Best regards

5th August 2006, 01:45 PM	#9
cableguybl diyAudio Member Join Date: Jul 2006	yes, but now i burned out other transistor, dc-dc converter RSQ035P03 now i have problem

6th August 2006, 08:43 AM	#10
B.I.G diyAudio Member Join Date: Mar 2004 Location: Home	i don`t know wich one ? send me the schematics ! constantin.cioringa@s-man.net __________________ B.I.G

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