Mirtone Service & Repair Forum
Mircom Intercom Amplifer -MA-485 \"do,s not have any audio sound aplification needed to operate an apartment intercom station . I beleive when the oringinal split transformer 8v for door and 16 vac for the audio burned out\" because the pos+ side came lose and grounded to the neg - side the replacement was a 120- AC 24 volt 1.67 Amp 40 that I believe it damaged the amplifier circuit \"leading to no sound at the intercom station.Please correct me if I\'m wrong at my way of thinking. leewright
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If you need your Mirtone unit tested or repaired,
give us a call at 1-336-969-0110.
We offer free estimates and extended warranties on the work performed.
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110
Recent 88 Comments
Hi...I have one customer with no voltage to the door striker but have confirmed the striker works. Transformer is ok! Do you have the parts for this, relay etc to ship so I can repair it or do you have a re-conditioned unit for sale. The seniors in thecomplex want it yesterday..Can you help?R.Jim Wh…Purchase or Repair: 
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Zone board on Mirtone 749044 25412275rev7 failed during rounds. Need urgent attention to replace board for system functionality.
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Hello, I am reaching out to inquire about the Mirtone 79045-2 alarm board. Our team is looking for information on whether this unit is still supported or if replacement parts are available. Could you please provide details on the current status of this product? Thank you.
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Can the Mirtone 79044 board be repaired or bought? I'm trying to check this off my to-do list.
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I'm experiencing some issues with the Mirtone 749044 25412275rev7 Zone Board... something seems to have stopped working.
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Can the Mirtone 749044 25412275rev7 Zone Board be repaired or replaced? Just trying to check this off my to-do list.
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Do you have a Mirtone 749044 25412275rev7 Zone Board available for sale or repair? Need to get production back up quickly.
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the Mirtone 79045-2 alarm board went down mid-shift. Please have someone check it out first thing in the morning. Thanks!
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Hello, could you please provide repair information for Mirtone 749044 25412275rev7 Zone Board? It has stopped working and we need a replacement. Thank you.
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The Mirtone 749044 25412275rev7 is not functioning properly. Please take a look and assess the issue. Thank you.
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Board failure on Mirtone 79044 25412275rev7 Zone Board identified during maintenance rounds. Needs immediate attention to avoid disruptions.
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Could you please confirm if the Mirtone 749044 25412275rev7 Zone Board is still supported or if replacement parts are available for this unit? Thank you.
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The Mirtone 79045-2 alarm board in location XYZ is acting erratically. It is displaying unusual behavior that is not typical of its regular functioning.
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Mir-tone Assy. 72024100 motherboard not powering up, no lights or display. Need repair service ASAP.
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I require of support and that contacts a distributor to me of mirtone in the city of Mexico thanks
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Could you please verify if the Mirtone 79044 25412275rev7 Zone Board is still supported by the manufacturer or if replacement parts are available for it? Thank you.
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Hello, I am inquiring about a Mirtone 79045-2 Alarm Board that needs repair. Can you please provide information on the repair process and cost estimate for this specific part? Thank you.
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The Mirtone 79044 25412275rev7 Zone Board is still down. Please provide an update as soon as possible.
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Can the Mirtone 79044 25412275rev7 Zone Board be repaired or replaced? I'm looking to address this
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Hello, the Mirtone 79044 Zone Board is displaying error code ER345. The alarm is continuously sounding, and all zones are appearing as inactive. Urgent assistance is required to troubleshoot and resolve this issue
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Mirtone 79045-2 alarm board displaying error code E23 and preventing machine from powering on.
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Mirtone 79044 25412275rev7 Zone Board is not functioning, production is offline.
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Need repair for Mirtone 79044 25412275rev7 Zone Board. Not functioning, looking for technician to fix industrial unit
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I'm reaching out regarding Mirtone 79045-2 Alarm Board. Could you please provide details on troubleshooting or repair options for this part? Thank you.
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The Mirtone 749044 25412275rev7 Zone Board in the warehouse is not functioning as usual. It is displaying unusual behavior, but I am not certain what the specific issue is.
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I can help with that. I'll reach out to the manufacturer to inquire about support and parts availability for the Mirtone 79044 25412275rev7 Zone Board.
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The Mirtone 79045-2 alarm board experienced a malfunction today, causing downtime in the unit. This occurred at 1130 AM. Can you provide a quick explanation for what happened before the next shift arrives?
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The Mirtone 749044 25412275rev7 is a Zone Board unit, but I'm not fully familiar with it yet. Maintenance team reported that the unit is not working and needs attention.
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Hello, I have a client in need of assistance with a Mirtone 79044 25412275rev7 Zone Board. They are experiencing issues and would like to gather more information on troubleshooting and repair options. Could you please provide details on how to address this problem? Thank you.
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I am repairing a door lock at an apartment block showing these symptoms.A transformer feeding the MA-485 is outputting 19.25 volts...will this harm the unit.It is a 16 volt amplifier.B when an apartment station depresses the door button the output at the amplifier terminals for the ac door reads 19.…Purchase or Repair: 
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please send manual mirtone ec200 but tone stop laps time small please send me why do it the time = laps time long.ThanksJ\'aimerais savoir comment faire pour mettre le signal sonore sans interruption automatique. C\'est à dire que je veux l\'arrêter moi-même. Merci
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Mirtone now owned by GE and system is 20+ years old - No manuals or hookup diagram left - please help
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The Mirtone 749044 25412275rev7 Zone Board in our warehouse is exhibiting unusual behavior. It is not functioning as it normally does. Please investigate this issue at your earliest convenience.
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I'm experiencing some issues with the Mirtone 749044 25412275rev7. It seems like the machine has stopped functioning properly. Can you help troubleshoot the problem?
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The Mirtone 79045-2 alarm board in the warehouse is exhibiting abnormal behavior. It is not functioning as it typically does, and its operations seem odd.
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The Mirtone 79044 25412275rev7 Zone Board in the warehouse is exhibiting unusual behavior, deviating from its normal operations.
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Hello, I hope this message finds you well. We are looking for information regarding the Mirtone 749044 25412275rev7 Zone Board. Could you please confirm if this unit is still supported or if there are replacement parts available for it? Thank you.
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We have a mirtone EC200 installed in a 36 unit Sr. Care complex with standard call switches in each unit and a call light outside the entry door on the exterior of each unit. The system is powered with a 24VAC transformer. We would like to replace the outdoor lights with a Horn/Strobe combination un…Purchase or Repair: 
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I am following up once again regarding the Mirtone 749044 25412275rev7 Zone Board issue. The unit is still down. Please provide an update at your earliest convenience.
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Can the Mirtone 79045-2 Alarm Board be repaired or purchased? I'm looking to check this off my to-do list. Thank you!
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Hello, I am inquiring about a Mirtone 79045-2 Alarm Board for a client. They are experiencing issues with it and would like to know if you are able to provide repair services for this specific part. Thank you.
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The Mirtone 79044 25412275rev7 Zone Board in the warehouse is behaving unusually. It is not functioning as it typically does, displaying odd behavior.
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The maintenance team reported an issue with the Mirtone 79044 25412275rev7 Zone Board. They need assistance troubleshooting it.
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Mircom Intercom Amplifer -MA-485 \"do,s not have any audio sound aplification needed to operate an apartment intercom station . I beleive when the oringinal split transformer 8v for door and 16 vac for the audio burned out\" because the pos+ side came lose and grounded to the neg - side the replacem…Purchase or Repair: 
...
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