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Marantz Problem Hello, I have a Marantz AV9000/U1B AV pre tuner. It stopped working the other day. I checked the fuse and the transformer in side it, there seems to be multiable low voltage power coming out of the transformer but after that I have no clue where to look. Do you know if there's been a problem with this Tuner and is it worth getting it fixed? Thanks for your help. Gary reinlite@cox.net

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Posted on Jan 02, 2017

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SOURCE: Technics ST-X302L tuner - Unit not powering on

i have the same unit and a similar problem, after a fall of the tuner on the floor while i was cleaning my room, first times the st-x302l was powering fine but after some minuts it quit alone.. now (i dont know why) it remains on but if there is an interruption of electricity it dont turn on anymore, it turn on only by removing the metal chassis and moving random the electronics.. i think it has some electronic contact or circuit break.. i brought it to a specialist in electronics and he told me the reparation would be too expensive so i prefer to try fix it by myself.

Posted on Apr 10, 2008

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SOURCE: marantz tuner no power

I had the same problem.

Just resolder the primary winding of the transformer on the PCB.

Works fine again

Posted on Jul 30, 2008

  • 1 Answer

SOURCE: How to program pre-sets on a Sony tuner ST-S100L

Tune in the correct station with the big +/- buttons. Then press "memory" then type in a number with the pad (it will do double digits, but normally a single digit is preferable) then press "enter"

Now typing in that number then pressing enter will take you to that station.

Good luck.

Posted on Dec 28, 2008

  • 4234 Answers

SOURCE: Tuner problem

The numbers you list are Marantz numbers. Given this unit's age, there is a possibility that these are germanium transistors which are no longer available. I will look up your specific model's service manual, but it would help to know the location of the transtors in question here.

Keep us posted and look back in a few days.


Dan

Posted on Apr 03, 2009

  • 4 Answers

SOURCE: Marantz 6200

Your unit's micro IC, is in need of a reset.Un-plug the unit and locate the semi large yellow capactor on the main board. (r-h side facing front) Now flip the unit over and look thru the vent holes in that same area and locate the two solder pins. Short them out with a thin metal object, like a straightened out paper clip or wire, and turn it over (just discharge the cap and remove your wire) this will default all settings and restore normal operation.

Posted on May 27, 2009

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a digital tuner has one advantage only,the stations can be pre -set.
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Hi spanky

Sorry for the delays in getting back to you. Been busy here this week.

OK. to connect the 2275 to the 1152,there are 2 ways of going about this.

You can plug the pre- out of the 2275 to the power amp-in of the 1152. In doing this you are using the power amp section of the 1152 and the preamp functions of the 2275. Your other gear like CD player, tape deck and so on also plug into the 2275.

the other(better) way is to plug the pre-out of the 2275 into the tuner inputs of the 1152, leaving the volume at about 40% on the 2275 and use the 1152 as an integrated amp. This means you are using the 2275 as a tuner only. When you do this, you will need to use an RCA lead to jumper the pre-out/poweramp-in connections on the back of the 1152, and the 2275 ... L to L and R to R respectively.

I am still wondering why you want to use 2 integrated amps (each having a preamp and a poweramp section) The only real benefit the 2275 brings to your system will be tuner functions. You could just get a tuner and run the 1152 to be an ideal rig.

Let me know what your ideal setup you are wishing to build would have. Speakers, other gear like CD, tape deck, etc.

regards
robotek

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I had the same problem.

Just resolder the primary winding of the transformer on the PCB.

Works fine again

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