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BMW E39, E53 instrument cluster schematics
25-04-2017, 12:49 PM,
Post: #1
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BMW E39, E53 instrument cluster schematics
Does anybody know what IC is a driver chip for the pointer motors on those boards?
I'm looking at 2002 board (HW19), but will assume, that driver chip will be the same on a different HW revision as well. One of the motors doesn't work properly and I need to trace if it gets the voltage from the driver chip. Since the board is a sandwich - cannot see where the traces are going to. P.S. motor itself is fine, I checked it. There is something on the board. Board looks clean, no visible signs of abuse, however somebody did replace the display in the past. |
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10-06-2017, 20:42 PM,
Post: #2
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RE: BMW E39, E53 instrument cluster schematics
(25-04-2017, 12:49 PM)HETPE3B Wrote: Does anybody know what IC is a driver chip for the pointer motors on those boards? Hey, did you find the solution? I repair these devices and may be able to help. What's the problem? What do you mean by "not working properly" and how did you test this motor? |
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28-06-2017, 04:21 AM,
Post: #3
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BMW E39, E53 instrument cluster schematics
Yes, I found the solution. Motor driver chip was bad. I replaced it and the motor did get back to life.
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