Question about Marantz Audio Players & Recorders

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I have '75 Marantz 1030 amplifier. Is it worth fixing? I bought it new and stored it away 10 years ago. Are there parts available for rebuilding it?

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  • 434 Answers

Yes you can still get parts for these. You will however need to know about rebuilding electronics. Be able to read schematics and have to tools necessary to perform testing circuits. I have rebuilt many Marantz vintage receivers as well as Pioneer, Sansui, McIntosh and so on. Keep the unit alive. Don't toss it. If you cant work on it yourself find someone who can and if you can. If you can afford the cost of repair donate it to someone who has a passion for rebuilding these and keeping them in circulation. These are very nice sounding units once you get them serviced and up and running.

Posted on Jun 26, 2017

6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

the dr
  • 447 Answers

SOURCE: TFX24PRXBWW GE Profile Refrigerator - energy use?

I dont know how to locate these specs for you, modern refrigerators are much more efficient for a couple of reasons. Most new units have a Computer that controls the defrost cycle whereas older units have timers that defrost every 8 hours of on comp run time regardless of whether it needs defrosting. The new ADC (adaptive defrost control) can better monitor the frost on the coils to defrost less (in the defrost cycle it consumes 5x as many watts as when its cooling. Also most new refrigs, especially new GE units have much more efficient fan motors now also, however they too are computer controlled and when they fail they are expensive. Also the very high end new Counter depth models (in the $2500+ range) have a new variable speed compressor. This gives the compressor the ability to run at a low, med, and high speed, reducing even more the watts that will be drawn in normal operation when the fan motors are on low and the compressor too. If you have any other questions let me know ill be glad to advise.

P.S. Buy an extended warranty with any new appliance you purchase! Trust me!

Posted on Dec 05, 2007

robotek
  • 1512 Answers

SOURCE: Marantz PM-34 Problem

Hi there

The part that you speak of is called the emitter stabilizer resistor. It is common to the output pair on one channel. You will find that the large "output" transistors mounted to the heat sink either side of this resistor will most probably be faulty.

Best not to run the amp at all whilst in this condition.

To be sure that you have an effective repair, you will need to change both these parts, and also the "driver" transistors that connect to the outputs. They too are in symmetrical positions close to the the output transistors. You should also check that the 3 legged resistor you mentioned is measuring its correct value, and check all other low value resistors in the output stage area to that channel.

If you are not familiar with repairing this sort of equipment, perhaps you can find a repair guy with some experience on audio equipment, then this work should be all he needs to do to repair the amp. I would also ask him to "blanket resolder" the output/bias stages and power regulator stages in the amp as problems with heat stressed cracked/failed soldering and dry joints often cause these amps to blow the output transistors.

BE SURE THAT THE CORRECT PARTS ONLY are used for the repairs. Different transistors could cause future problems with the amp. The parts can be obtained relatively easily from a marantz distributor(we can find one in a country near to you). OR if you can give me the markings to each of the parts you need, I can provide you with an international source to get them from.

The amp is decent HiFi, and worth repair. Happy to provide you any assitance I can, Good Luck

regards
robotek

Posted on Nov 03, 2008

  • 117 Answers

SOURCE: my kitchen aid frig is not working. the freezer

I would suggest you may have an airflow problem. As the frig compartment receives the cold air from the freezer compartment and you say the freezer is working,then you must have an airflow problem .Check the airflow dail next to the thermostat that has numbers. Normal setting is the middle setting on both airflow dail and therm.Allow temp to stabilize and recheck.hope this helps.

Posted on Sep 26, 2009

escapement
  • 2334 Answers

SOURCE: Bought this Russian Diver 7003 from ShopNBC about 2

Hard to fix for people without watchmaking knowledge. I'd do that in 15 minutes. Anyway - Invicta is NOT even the average quality watch company, so, can NOT charge you more than price of watch. Contact me: artkalnins@yahoo.co.uk This will be long explanation, but , hopefully you will get it right.

Posted on Mar 05, 2010

budmrtn
  • 11361 Answers

SOURCE: My Monitor just stopped working. No pop, no fade,

Optiquest is the Viewsonic low end products. You can take it apart and look inside.
Most common failure in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, falied inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what goes wrong: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further.

Posted on Mar 30, 2010

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One common explanation is the capacitors fail after a number of years. The lineage of these electrolytic caps usually last about 10 years or so with regular operation.

This is a disappointment and many PC's, top of the line receivers such as yours 10-15 years old are plagued with these failing capacitors.

Suggest if you are DIY replace all electrolytic. If not look for a electronics repair local and get an estimate.

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15334495-jome4z252relzylonhciumg4-1-0.jpg

The capacitors does not have to leak to fail. Also check for open/cracked solder joints around the power supply and power amps.

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they are gone gone long gone there is no information about it
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Used banana plugs for my amplifier, but bare ends of cable were too long, and then my amplifier short circuited. Silly. I would like to know if the IC is toasted or the power supply (or both). Is this...


If you were playing with the speaker out ----off sure the amp IC is blown or the related circute problem as occured
if you smell the shot circute ...tipically a silicon burn smell....then ...there is a problem in side....
remove the cover and physical check for the blown parts using a tourch if you fing any parts or the bord blackning.........
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CLICK HERE for your part.

It is $83.72 USD.

Here is a Buy-it-Now eBay auction for $34.99USD & Free shipping!!
CLICK HERE

Your part number for the timer is 3976570a

A used part would have to come from an appliance store that salvaged from an abandoned washer.... and it may fail shortly anyway.
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Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

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1 Answer

Marantz PM-34 Problem


Hi there

The part that you speak of is called the emitter stabilizer resistor. It is common to the output pair on one channel. You will find that the large "output" transistors mounted to the heat sink either side of this resistor will most probably be faulty.

Best not to run the amp at all whilst in this condition.

To be sure that you have an effective repair, you will need to change both these parts, and also the "driver" transistors that connect to the outputs. They too are in symmetrical positions close to the the output transistors. You should also check that the 3 legged resistor you mentioned is measuring its correct value, and check all other low value resistors in the output stage area to that channel.

If you are not familiar with repairing this sort of equipment, perhaps you can find a repair guy with some experience on audio equipment, then this work should be all he needs to do to repair the amp. I would also ask him to "blanket resolder" the output/bias stages and power regulator stages in the amp as problems with heat stressed cracked/failed soldering and dry joints often cause these amps to blow the output transistors.

BE SURE THAT THE CORRECT PARTS ONLY are used for the repairs. Different transistors could cause future problems with the amp. The parts can be obtained relatively easily from a marantz distributor(we can find one in a country near to you). OR if you can give me the markings to each of the parts you need, I can provide you with an international source to get them from.

The amp is decent HiFi, and worth repair. Happy to provide you any assitance I can, Good Luck

regards
robotek

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