Melco Service & Repair Forum

We have a Melco EMT 10/4T machine with a start-up boot problem. I believe there may be a electronics hardware problem (memory error?). Error is “BOOT DISK ERROR_”. After replacing the floppy disk drive and new boot floppy disk a closer examination indicates a problem in the self test routine (I think). The system used to go through the self tests and then looks for the floppy but now stops after the RSA Memory Test PASSED, and immediately displays "B4" and stays there until enter is pushed again.Do you have any idea where to start troubleshooting? I have an electronics degree so you can talk as technical as you wish. We were hoping to diagnose the problem and send you only the defective part for repair. (my guess is dynamic ram error bank 4 on CPU board but just a guess). See the following boot display sequences. Any Help would be greatly appreciated!System stack PASSEDRSA Memory PASSED (then jumps immediately to "B4" and stays until “Enter” is pushed)Bunch of corrupt characters now displayed (stays on that screen until “Enter” is pushed)Lan Card Locate PASSEDLAN EEPROM LOAD PASSEDSelf-test PASSEDEBIOS V1.04 928KINSERT BOOT DISK_BOOT DISK ERRORmachine infoMelco EMT 10/4T Model 01050002Serial # 790799Mfg date 01/2000

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#Melco by JACK L FEAK on 2020-09-04 12:38

We have a Melco EMT 10/4T machine with a start-up boot problem. I believe there may be a electronics hardware problem (memory error?). Error is “BOOT DISK ERROR_”. After replacing the floppy disk drive and new boot floppy disk a closer examination indicates a problem in the self test routine (I thin…Purchase or Repair: ...We have a Melco EMT 10/4T machine with a start-up boot problem. I believe there may be a electronics hardware problem (memory error?). Error is “BOOT DISK ERROR_”. After replacing the floppy disk drive and new boot floppy disk a closer examination indicates a problem in the self test routine (I think). The system used to go through the self tests and then looks for the floppy but now stops after the RSA Memory Test PASSED, and immediately displays "B4" and stays there until enter is pushed again.Do you have any idea where to start troubleshooting? I have an electronics degree so you can talk as technical as you wish. We were hoping to diagnose the problem and send you only the defective part for repair. (my guess is dynamic ram error bank 4 on CPU board but just a guess). See the following boot display sequences. Any Help would be greatly appreciated!System stack PASSEDRSA Memory PASSED (then jumps immediately to "B4" and stays until “Enter” is pushed)Bunch of corrupt characters now displayed (stays on that screen until “Enter” is pushed)Lan Card Locate PASSEDLAN EEPROM LOAD PASSEDSelf-test PASSEDEBIOS V1.04 928KINSERT BOOT DISK_BOOT DISK ERRORmachine infoMelco EMT 10/4T Model 01050002Serial # 790799Mfg date 01/2000

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#Melco by vicki palonen on 2011-09-28 02:51

i have a emt 10t phase 2 it just died i feel it must be the power supply no lights nothing do u repair power supplys i checked with melco and they will replace it new for 1200 or rebuilt for a 1000 i would love to have other options its a great machine i bought it new in 98 i really need to get it w…Purchase or Repair: ...i have a emt 10t phase 2 it just died i feel it must be the power supply no lights nothing do u repair power supplys i checked with melco and they will replace it new for 1200 or rebuilt for a 1000 i would love to have other options its a great machine i bought it new in 98 i really need to get it working again this is my lively hood thanks vicki

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#Melco by Mark Howell on 2009-01-19 22:40

I have a Melco Emt 10-4T and apparently had a power surge. It seems to have burned up some boards, at least some components. I replaced the power supply because I could see one component fried. Still can\'t get the machine to work. It will display e-stop engaged. I have disconnected the emergency st…Purchase or Repair: ...I have a Melco Emt 10-4T and apparently had a power surge. It seems to have burned up some boards, at least some components. I replaced the power supply because I could see one component fried. Still can\'t get the machine to work. It will display e-stop engaged. I have disconnected the emergency stop buttons but it still doesn\'t work.

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