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Marantz SR4500 Receiver Questions & Answers
We have a Marantz sr4500,
It is not so easy to probe into to find a protection fault condition. The fault can be your output drivers- the MOSFETS/IC's fitted for both the channels, Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise like a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.In this case I think that some capacitors are faulty as when the set is put on it charges on to make the amplifier work. Possible fault in the protect circuit or preamp.
You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board, maybe the protect circuit by itself is shutting off due to a faulty bias , maybe a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the protect is off then check for short on the speakers.
Protect message
If you are using AV cables from your TV for movies and a different hookup for the X-Box would explain that the relay for the sound inside your unit may have blown from being overloaded or faulty. Should be an easy fix at a trusted electronic service place.I am not sure if your system has a manual reset button underneath or on back, but you could look for a tiny hole with reset on it or a red button. It may save you a trip to the doc.
Marantz CD5004 tray keeps opening problem
CD/DVD players use a protocol;
Open tray. Insert disk. Tray switch tells mechacon that the tray is shut. Attempt to focus on disk.
If focus is acheived, then it will spin up and try to read the disk otherwise it will ask for a readable disk.
If the tray keeps opening, I would suspect the tray detect switch is malfunctioning, maybe the drive belt has stretched.
HI, would you know what error code CY920 on my Marantz NR1607 means ?
The Marantz NR1607 is an AV Receiver, and the CY920 error code is not a recognized error code for this product. It's possible that this is a custom or specific error code for your device, and I would recommend contacting Marantz support or the manufacturer for more information. They may be able to provide you with a solution or more information on what the error code specifically means and how to resolve it.
The poweramp of my Marantz SR6004 AV Surrount Receiver only turns on after about 3 minutes.
Parece que el problema puede estar relacionado con la fuente de alimentaci?n de su dispositivo. Es posible que desee verificar si la fuente de alimentaci?n proporciona el voltaje y el amperaje correctos. Adem?s, es posible que desee verificar si hay conexiones sueltas que puedan estar causando una interrupci?n en la fuente de alimentaci?n. Tambi?n puede intentar restablecer el dispositivo a su configuraci?n de f?brica para ver si eso resuelve el problema. Si estas sugerencias no funcionan, es posible que deba consultar el manual para obtener pasos de soluci?n de problemas m?s detallados o ponerse en contacto con un t?cnico calificado para obtener ayuda.
Marantz DV 9500 DOES NOT PLAY ANY of normal CDs. Reads ONLY Super Audio CDs. What could be the cause for this fault?
- Hardware issue: The CD player may have a hardware issue, such as a damaged laser or faulty electronics, that is preventing it from reading normal CDs.
- Firmware issue: The CD player's firmware, which is the software that controls the device, may be outdated or corrupt, causing it to only read Super Audio CDs.
- Compatibility issue: The CD player may not be compatible with normal CDs, and is only able to read Super Audio CDs due to their specialized format.
In terms of adjusting the laser pick-up, it is generally not recommended to try to adjust the laser pick-up yourself, as it can be a delicate process that requires specialized equipment and knowledge. If you believe the issue may be related to the laser pick-up or other hardware, it may be necessary to seek the assistance of a qualified technician or the manufacturer.
If the CD player is unable to read the content of a normal CD and is returning to 00:00 tracks on the display, it is possible that the issue may be related to the laser pick-up or other hardware. It is also possible that the issue may be related to internal ICs or other electronics, in which case it may be necessary to diagnose the issue further to determine the cause and find a solution.
Marantz sr18 sound goes out
NOT A CAR/TRUCK SO MOVED TO AVR
THE AVG. AVR HAS OVERLOAD DETECTOR AND LAMP AND RELAY
THAT FAILS WHEN OVERLOADED.
PER THIS SIMPLE LIST
- SPEAKER WIRES SHORTED.ENDTO END
- SPEAKER SHORTED.
- TOO MANY SPEAKERS WIRED IN PARALLEL.(THE ohms rule violated)]
- the amps side is failing.
- the overload detector is bad, telling lies, and shutting it down.
- try no speakers, to see if it trips.
- It is 1999 and is old. even bad caps inside now.
only does
Digital inputs: coaxial, optical
Video Connections: component, composite, SVHS
the rig has fan sensor failure and over temp too, and the service manual covers that.
see protector DRIVE here, it shuts down all outputs via relays.
free to read and DL.
https://www.manualslib.com/manual/1066247/Marantz-Sr-18-U.html?page=6#manual
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