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Nakamichi MB-4s has ER message
Nakamichi MB-4s has ER message
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Old 11th August 2010, 05:03 PM   #1
Rapidroy is offline Rapidroy  United States
diyAudio Member
Join Date: Jan 2008
Default Nakamichi MB-4s has ER message

HI All
I can't seem to fix my Nak MB-4s, It had a stuck door and gave a ER message. so I relined the gears now I can pull it open and closed, I did a cpu reset but still ER with all 7 numbers flashing.
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Old 15th January 2013, 09:34 AM   #2
TBL is offline TBL  Hong Kong
diyAudio Member
Join Date: Feb 2012

I just bought myself one MB-4S which the owner said the door got stuck and showed "ER" on its LED panel.

Spent 1 hr working on it. You had to take away the top cover of the mechanism. There are 4 screws. Then you work the 7 CD trays in and out of their slide ways. Like doi it dozens of times. Until you can make the door come out with the tray smoothly.

Take note there is a white tab at the right side (yea seen from you looking at the player, at your right hand side) of the mechanism. Make sure that tab locks at the front dent of the tray, one at a time.

Good luck.
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