Question about Thermador MBES Microwave Oven
Every microwave oven I've seen has the touchpad permanently glued to the controller housing/front trim piece. To get this off, remove the top/side cover piece, then look for screws that hold the controller housing to the front of the oven. On some models, there is one screw at the top. After you remove that you can slide the controller up to unhook it from the oven frame. If there is a push-in door release latch in the housing, there is probably a screw or two at the bottom as well.
Now here is where it gets interesting. There is a flexible printed cable from the touchpad to the controller circuit board. To detach it from the board, you must first unlock the connector. There is a flanged collar on the connector. If you pull the collar up as if you were going to slide it along the cable (it only comes out a millimeter or so and hits an internal stop; it's part of the connector and is not supposed to be removed), that unlocks the connector and the cable slides right out. If the cable doesn't slide out, make sure you have both ends of the collar up to the internal stop. Now you can remove the screws that hold the controller onto the keypad and the removal process is essentially complete.
To reinstall the ribbon, slide it all the way into the connector and push the locking collar back down. Make sure the cable is in square and straight or the keypad may not work properly.
Caution: handle the controller board only by the edges. The controller chip(s) is very vulnerable to static electricity damage and can be ruined by a spark to the circuit that is too weak for you to feel the discharge. Avoid touching the contact area of the touchpad ribbon while inserting or removing it. (If you need to clean the ribbon contacts that go into the connector, it is OK to work on those while the ribbon is disconnected.) In some ovens, the controller chip is mounted directly on the board and covered with a soft rubber compound. These are especially delicate; it's too easy to break the fine wires inside that connect the chip to the board (but they're cheap to make!).
Posted on Mar 12, 2011
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Posted on Jan 02, 2017
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