Mirtone Service & Repair Forum
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 19.25 volts...but when it is released it only drops to 18.85 volts...which makes me think the relay is stuck on the amplifier.....bottom line do I need a new controller?C the electric strike shows a rating of 24 vac? how could this function well on a 16 volt system?It appears to have been part of this system for some time..and the caretaker has said there are problems with the system as far as people getting in without being buzzed. what is the lowest voltage a 24 volt buzzer could activate at?
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124 Five Forks Dr PMB #208
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Recent 89 Comments
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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Unit 79045-2 alarm board malfunctioned mid-shift. Please have a technician check it in the morning.
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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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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 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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The Mirtone 79044 25412275rev7 Zone Board is still down. Please provide an update as soon as possible.
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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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Do you have a Mirtone 79044 25412275rev7 Zone Board available for sale or repair? Our unit is down, and we need to keep production running. Thank you.
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Could you please provide repair information for a Mirtone QSP218 50064 Circuit Board? We need a quick answer for a replacement. 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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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 confirm if the Mirtone 79044 25412275rev7 Zone Board is still supported or if replacement parts are available for this older unit? Thank you.
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Hey, just a heads up, we've got a failed drive or board on Mirtone 79045-2 in need of your attention ASAP. Keep me posted.
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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'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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Hello, I am trying to obtain a manuel for the mirtone 7800 series fire alarm system. I can\'t seem to locate one. Could you direct me to where i can either down load one or purchase one? Thank you,Selina
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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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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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The Mirtone 79044 25412275rev7 Zone Board is malfunctioning, causing a production line disruption. Immediate repair and restoration are critical to resume operations swiftly.
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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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Unit 25412275rev7 (Mirtone 79044) zone board is malfunctioning. Needs attention ASAP. Please check and reset during AM shift.
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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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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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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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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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Board failure on Mirtone 79044 25412275rev7 Zone Board identified during maintenance rounds. Needs immediate attention to avoid disruptions.
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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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Do you have a Mirtone 79045-2 Alarm Board available for sale or repair? Our unit is down, and we need to get production running again as soon as possible. Thank you.
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Hello, I'm interested in purchasing a Mirtone 79045-2 Alarm Board. Could you please provide information on pricing and availability? I am looking to source one quickly. Thank you.
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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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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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Unit 79044 25412275rev7 (Zone Board) went down mid-shift. Need follow-up during the day.
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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 is a Zone Board that is not currently working.
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hello we did renovation and we broke a wire now we need the sqematic for it thank you
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the Mirtone 79044 25412275rev7 zone board on unit XYZ went down mid-shift. Please check it out and get it back up and running. Thanks!
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Having issues with the Mirtone 79045-2 Alarm Board. Need a repair technician to check and fix the industrial unit. Please respond if you can help.
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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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looking for a unitsystem is in an apartment complex. tenant can operate one entrance and hear from same however 2nd entrance does not work
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Can you please confirm if the Mirtone 749044 25412275rev7 Zone Board is still supported or if parts are available for repair? Thank you.
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Could you please provide me with pricing and availability information for the Mirtone 79045-2 Alarm Board? I am looking to source one quickly and would appreciate your assistance. Thank you.
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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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Can the Mirtone 79044 25412275rev7 Zone Board be repaired or replaced? I'm looking to address this
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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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My customer has an 8 floor.20 suite/floor mirtone system with pull stations in all suites.each suite is decoded in the mirtone on each floor and then on the first and second floor there are two master stations to decode the floor number. The system is only local to the caretaker.The owners want all …Purchase or Repair: 
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