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Blank screen and flashing lights mstt panel

Created by: alexmac_uk at: 10/16/2013 3:35 PM (4 Replies)

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10/16/2013 3:35 PM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	Hi, I have a customer with a 5 axis CNC machine, the screen will not boot up and all lights are flashing on the mstt panel. It's a Siemens 840d controller. 611u drives. Any ideas??
alexmac_uk Posts: 118 Rating: (1)
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10/17/2013 8:39 AM	Rate (0)
PISCEAN 2010 Diamond Expert Joined: 4/23/2010 Last visit: 11/23/2024 Posts: 8092 Rating: (880)	Hello, Which is the system? Please specify. I presume it as 840D. Please check the 24 V DC power supply. On OP does power Yellow LED lits ON?

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10/17/2013 10:39 AM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	Yes 840d with pcu 50. There is power getting to the screen. I am getting customer to try and plug an external monitor into it first.
alexmac_uk Posts: 118 Rating: (1)
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10/28/2013 10:39 AM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	Hi, anybody got any ideas? There is power to the screen and even when an external monitor is plugged in there is nothing on that.
alexmac_uk Posts: 118 Rating: (1)
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11/28/2014 10:21 PM	Rate (0)
waldek123 Experienced Member Joined: 4/28/2013 Last visit: 12/12/2024 Posts: 12 Rating: (0)	I had the same problem today, maybe it will help you. I only took out metal clamp that press chip from the picture and it start to work! ( it is placed on left side of main procesor on PCU50 motherboard) I was lucky to find it so easy ! and asit works now, I have time to make backups ;) I just wonder if it is necessery to make bga re-ball or just re-heat ? good luck Attachment DSC_0305.jpg (193 Downloads)

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