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PAPER 06-26-2012 02:11 AM

Here are logic 7 repair instructions for every 1
5 Attachment(s)


Repair instructions and ASK Logik7 from the E65!
Good day,

as you all know I am going to repair a defective Logik7.
I just wanted to show my work and presentieren because of the many questions that I'm not yet as far : Thumbsup:
Come rare in the hobby room at my in-laws.

Picture # 1: Here's the Logik7 board, you see four stages
1x Center speaker
1x both rear doors
1x bass left
1x bass right
Picture # 2: I've removed the old broken amplifiers and exposed contacts.
Image No. 3: The same close-up
Picture # 4: These two stages are to replace the old
Picture # 5: I was looking something Sprittig ;-)) do not have hands trembled, but I did not want to hide from you!

I also soldered the amp already part way to the board (or
no photo), for the speakers I have 0.5 mm thick and 3cm long lines used for
the signals of the thin black? mm .

Will keep you here with that Fred up to date.

mfg odd ....

Edit of 19/03/2012: As I already wrote yesterday, I was
sprittig something and so I said instead of 0.5mm , 1.5mm to
the TDA soldered ;-( (Now I know why it was so hard * LOL *

This will, of course, correct and add new pictures!

PAPER 06-26-2012 02:13 AM

2 Attachment(s)


I was now again in the basement and I studied the board.

If you want to use an external amplifier, for which I have marked the low-frequency signal.

If you simply want to repair his Logik7 that will please the TDA1562 as specified soldered to the motherboard.

TDA1562 datasheet: Page 3

I assume no warranty, all work is done at your own risk!

Who is a benefit sional repair wants, which is aimed to please the user: "King.reparatur" from the other forum!

I feel the effort is too great and I do not want to operate commercial is.

I only went about creating it and prove that a repair is possible in our Logik7


FIG 1: Instructions

FIGURE 2: it should look like it! (Thermal grease and do not forget to drill)

mfg odd ....

More to follow ....... O lines

I hereby publicly thank you for the user from the Russian dj0vitamin BMW forum ( ), who has developed a similar guide own un told me his knowledge

PAPER 06-26-2012 02:16 AM

3 Attachment(s)

I have now a new pair of images from a user.

Have now labeled this.

So much fun with it : Thumbsup:

HP. Here you can see how difficult it is to enfernen the old amps without damaging the contacts

PAPER 06-26-2012 02:20 AM

4'TH & LAST POST; ACTIO 7d09cd0be611e9a ...?

The connections are labeled with base, emitter, collector (abbreviated diagram by the letters B, E, K)

english or B, E, C!

PAPER 06-26-2012 02:25 AM

Important: Do not forget before discharging the capacitors. With a light bulb or a resistor.

Way to prevent it before it transmits when soldering

dude_hot10 06-26-2012 04:15 AM


dgoodsell 06-26-2012 07:01 AM

Nice find paper....someone needs to be the guinea pig and let us know how it goes.

Rookie2008 06-26-2012 11:51 AM

Excellent find bro!

PAPER 06-26-2012 01:10 PM

WoW , considering all the amp problems .
I thought people would be all over this topic .

132 views & only 3 replys
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pass427 06-26-2012 01:36 PM


Originally Posted by PAPER (Post 6918207)
WoW , considering all the amp problems .
I thought people would be all over this topic .

132 views & only 3 replys
Sent from my GT-N7000 using Bimmer App

That's because I have no clue what was written but I will take it to my electronics guy and I am quite sure he can decipher it. It funny as I just received my Logic 7 amp in the mail today after sending it out for repair. It it works then that will save me on future repairs

mrbmwx5 06-26-2012 02:07 PM

I just checked around and seem like no one have them chips...

PAPER 06-26-2012 08:42 PM

All I can tell you is keep looking , they are available & Google search is your friend

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II Kings 9:20 06-26-2012 08:51 PM

Nice find. I did a similar repair to my SID (Saab Info Display) albeit way less complex. I hope I never need this info but nice to know it is out there. I hope mine lasts since it is not on the CPO dime.

pepe65 06-26-2012 08:56 PM

dont know what 96% of any of that means but i sure wish i did.

PAPER 06-26-2012 09:39 PM


Originally Posted by pepe65 (Post 6919272)
dont know what 96% of any of that means but i sure wish i did.

basically it's instructions on which chip to remove from
the logic 7 , & which chip to replace it with .
Also the soldering points are given .

GregHolla8 06-27-2012 04:25 AM

I did some research the BEK transistor KT3107 it's Russian
TDA8564 and TDA1562 u could find them all on eBay

spyders 745li 06-27-2012 05:25 AM

Nice find. Just sent mine off to Becker for repair. Now we have instructions on the repair. Very good find

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GregHolla8 06-27-2012 06:31 AM

I bought all the caps all the transistor all amplifiers can't wait to get back to NYC to dive on this put the marine corps electronics knowledge to work

second 7 06-27-2012 07:44 AM

Yes , I seem to have ran into that same wall. A company on the away coast just informed me that they can't locate a chip that is needed . I believe Paper is onto something. Must investigate into it further. Mean while no sounds ! :mad:

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PAPER 06-27-2012 01:02 PM

I think you mean the WEST coast .
& as for the chips , they are available .
Just use Google search or buy them on Ebay

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PAPER 06-27-2012 01:04 PM

Also you guys might want to bookmark
This topic before it gets barried .
After all this topic ain't stickied
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second 7 06-27-2012 04:01 PM

This is some crazy info. I wish I really knew what to do with it. The shop on the west coast has yet to tell me what chip it was that they couldn't get but i would think just like I found it in eBay and the site you posted I would think by them being a big company. However if I need to get the oart and get it to them Ao be it. I may need that unit if its still availabe. I'm 3 ask units in the hole. Lol

skybmray 06-27-2012 11:16 PM

Great find, I will be definately ordering the chips as my drivers side bass seems to crackle a lot.

PAPER 06-29-2012 11:30 PM


PAPER 07-03-2012 10:21 PM


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