Question about Marantz SR5007

1 Answer

Marantz sr5007 receiver dead after lightning strike

Cant find any visible damage or shorted diodes or transistors on power supply.Could it be the TOP258MG ic?

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 13 Answers

Hi Ridgep.
Replacement of the TOP258MG IC Should resolve your problem. Make sure you have fully discharged all the caps on the primary side of the power supply before fitting your replacement IC as they are very easily destroyed during installation.

Posted on May 12, 2014

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

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

Ad
drifterK
  • 4924 Answers

SOURCE: We had a lightning strike

Try to unplug it ..cause it may be just in a protective stand by ..and after that ..take a look to teh settings ..and the other things that feeds the signal ..The error may came from another not working device ..(antenna or such ) Usually if they have no incoming signal ..they get into stand by after 10 minutes..or so ..

Posted on Aug 27, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What can i do to stop the red light blinking for marantz sr5007?


Turn off the power using X.
2 Press X ON/STANDBY while simultaneously pressing PRESET CH + and PRESET
CH -.
3 Once the display starts flashing at intervals of about 1 second, release the two
buttons

Aug 09, 2014 | Marantz SR5007 Home Theater AV Receiver

1 Answer

Marantz blows fuse


You probably have a shorted diode in the power supply or a shorted output transistor. In either case it will need troubleshooting and repair.

Jul 26, 2014 | Marantz Audio Players & Recorders

1 Answer

Marantz sr5007 power supply dead


Have you tried a protection reset on the unit ?

Jun 22, 2014 | Marantz Audio Players & Recorders

2 Answers

Cobra 19 classic


I would open up the radio and look for burnt traces, primarily by the output transistor and near where the power comes in. If you have another radio near by (within several feet) and it transmits on the same channel that your radio is on, can you hear it?? If you transmit on your radio, does the working one hear you? If you open your squelch, does it make noise?? If you transmit, does the RF power meter go up?? If any of these questions are YES, then there is a good possibility that your ANTENNA SWITCHING diodes are shorted or open. The TX diode is probably open and your RX diode is shorted. OR both. If the other radio is hearing you, and you are hearing the other radio, then the radio section is very likely OK. The diodes switching the antenna between RX and TX often fail, especially if there has been a lightning strike in the vicinity. It doesn't matter if your radio is on or not, or if you have a surge protector, a nearby lighting strike can take these diodes out.

If you don't have as much as a Channel number coming up on your radio, then the problem is most lkely somewhere in the radios internal power supply.

Jan 29, 2014 | Radio Communications

1 Answer

Marantz sr5007 firmware update loop


hi am also having same issue, did you found the ans pls share me.

Dec 15, 2012 | Marantz SR5007 7.2-Channel 3D Home Theater...

2 Answers

My 32lg30 was shorted out during a lightining strike in a storm the other night. plug it in, and press power, and now nothing works. reset button or replaceable internal fuse? I am tech savvy so I can do...


Hi,

Here are some basic steps that will help you fixing the problem.

I'm assuming that your unit is dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse- sometimes the fuse fail because of the power surge, replacing with new one will cure the problem, If this is the case I would advice you to use surge protector/AVR (Automatic Voltage Regulator). However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and still the unit didn't power up then you have an open parts on the power supply.

4.If you see that the fuse is intact , don't attempt to touch anything because there some fatalcomponents stored electricity enough to hurt you with a simple mistake only. I would advice you to look for a professional to troubleshoot the power supply. If you want to repair it yourself make sure that you have necessary tools and test instrument. First check bad solder joints(re-solder all cold solder), leaky electrolytic capacitor(sometimes it has bulged at the top but not all, you better have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat sink), open fusible resistor (caused by shorted regulator Transistor/IC), shorted zener diode.

You may also replace the entire power supply board, click this LINK.



Hope I helped you.

Thanks for using fixya.



Jdvillanueva

Jun 04, 2011 | LG 32LG30 32 in. LCD HDTV

1 Answer

JVC RX 505v stereo receiver keeps blowing fuses. Replaced fuse with specified rating (125v 5 Amp) but still keeps blowing fuse. Fuse appears black inside and I see a flash when I apply power. Can...


The likely cause of this is a dead short in the power supply. I don't receal the specifics of this unit, but there should be a set of four(4) diodes or a single bridge rectifier in the main power supply area. Check this/these for a direct short using a diode checker. Other than that, the output transistors being shorted can cause hte same symptom. Without seeing the actual unit, I can not tell for sure. If you know how, check the output transistors as well. Report your results here.

Dan

Nov 30, 2010 | Audio Players & Recorders

1 Answer

Possible burnt out power supply on Yamaha RX-V557


Can you check the power transformer, voltage & resistance.
You may have to unsolder some components to test them...such as the rectifying diodes and the transformer.  I believe that the outputs from the power supply board are all DC voltages.  Is there all so a IC chip on the power supply board?  Does your insurance cover lightening damage?   

Mar 25, 2009 | Yamaha RX-V557 Receiver

2 Answers

Kenwood basic M2 Amp Lightning strike


you can check the output transistors for short circuits with the low ohms range or diode checker . If they have failed, then it is often a good idea to replace all as much stress can be placed on an output array in this type of failure. to repair reliable, all outputs on an offending channel should be replaced.

Make sure the fuse you replaced was the same type of fuse. check markings.... T stands for sloblo... a fast blo duse may let go at turn on. The power supply may have a shorted rectifier diode in it also.

be aware however, every time a fuse of that rating blows... more damage may be occurring to the amp.

Dec 11, 2007 | Kenwood VR-407 Receiver

1 Answer

Lightning Strike, Plz Help!


Hi. The red line on ICS is quite normal it does not mean the part has failed. To be honest in most cases if a tv has been hit by strike it is a right off & scapped. What I suggest is to remove the main pcb & power supply pcb if its seperate & inspect the print side of pcb for signs of arcing tracking or burnt track. Repair any damaged track by cleaning off the coating to get at clean copper then solder wire accros to bridge the damage. Check the power supply resistors diodes transistors look carefully for any burnt components or components which are physicaly damaged. Check the line output transistor this will be near the large transformer with a thick red ht lead going up to the crt. Check all the components you can in the line stage look at all the ICS to ensure none of them have holes in them or have blown apart. Hopefully you find some or one if your very lucky that is damaged replace it & try your tv.

Sep 23, 2007 | Toshiba CZ36V61 TV

Not finding what you are looking for?
Marantz SR5007 Logo

Related Topics:

158 people viewed this question

Ask a Question

Usually answered in minutes!

Top Marantz Audio Players & Recorders Experts

The Knight
The Knight

Level 3 Expert

74211 Answers

 Grubhead
Grubhead

Level 3 Expert

5126 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Marantz Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...