Marantz SR-6004 Receiver is flashing red light and not functioning

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AMITNOIDA

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My 1.5 year old Marantz SR-6004 Receiver while running has suddenly faced with the problem of flashing red light and stopped delivering picture and sound.
That day I was running the AVR on our society DG Set (as there was power cut at that time) through a Bluebird Stabiliser and Belkin surge protector (ordinary model not Gold Series). The problem occured, when the City Power was restored and power was switched over from our Society DG Set to City Power.

As per the AVR Service Manual, it requires to be sent to Service Center. Does any FM had faced similar problem with their AVRs?

Can the problem be rectified by any Reset switch inside? I tried to google and found that sometimes this problem may happen in case of shorting of speaker wire. Can I open the AVR and check whether there is any burning smell or not!
I am afraid whether any parts have burnt inside.

My Dealer Bass n Treble suggested me to go for an UPS of sufficient capacity for the AVR as well as BDP and Plasma.
There is although mixed opinion of using UPS for AVR. Some manufacturer discourages using UPS for AVR.
I am slightly confused and require FMs sharing their experience please.
 
Red flashing light usually happens when there is problem with power supply. It is better to send it for servicing. I hope it is under warranty, else prepared to shell around 2-3K. I have seen this in my AVR and I got it serviced recently.
 
Similar thing happened with my old 1909 last week. There was some short circuit in my mains line and the AVR went into protect mode.

Don't open the set yourself. See what the service guys say.

The well meaning chaps at ProFX were prattling on about shipping the AVR to BLR, etc, etc. Minimum 6k plus shipping, etc.

Took it to a very competent gentleman. He checked and said that two amplifier sections (center and left surround) are blown. It would cost Rs. 5200 to rectify.
 
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Well all this does sound scary. Living in Gurgaon means having constant powercuts. The apartment does have 100% backup, but whenever the power goes kaput it takes atleast 30 seconds for the Diesel Generator to kick in. Same thing happens again when the power returns, only this time the gap is just 2-3 seconds.
 
I will not recommend running any audio video gear under a switching power supply from the mains. There could be spikes in the line when power resumes, during the switching phase from mains to generator and back.

A colleague runs his AV through a 1.5Kva APC UPS. This UPS is in the chain only to protect the expensive equipment from abrupt power outages, not as a power backup source. The power amplifier runs through a Belkin Ultimate series surge protector. The surge protector failed twice as a result of spikes in the line. Thats how bad our raw power is.
 
sandeepmohan said:
I will not recommend running any audio video gear under a switching power supply from the mains. There could be spikes in the line when power resumes, during the switching phase from mains to generator and back.

A colleague runs his AV through a 1.5Kva APC UPS. This UPS is in the chain only to protect the expensive equipment from abrupt power outages, not as a power backup source. The power amplifier runs through a Belkin Ultimate series surge protector. The surge protector failed twice as a result of spikes in the line. Thats how bad our raw power is.
Click to expand...

Could you suggest which 1.5Kva APC UPS he is using. Even I need something similar just to protect the equipment from sudden power outages!
 
Just use a higher than necessary electronic voltage stabilizer like 4 KVA rating, even though your actual load is in the 1 KVA range with all HT units running together. Just make sure that the stabilizer is provided with high as well as low voltage auto-cutoff facility. Just like the ones used for air-conditioners.

But what really makes me think is, how is it you guys have the GUTS to run such expensive equipments on 'irregular/unfiltered' DG power, when there is an outrage on the regular one? Regular is as such of suspect quality (which needs careful individual regulation), DG would be trash-loaded.
 
angynagpal said:
Could you suggest which 1.5Kva APC UPS he is using
Click to expand...

A APC Back-UPS 1500VA is used for a computer, router, main tv display, computer display.

The Belkin surge protector connected to raw power is used for Power Amplifier and AV Processor. He did try running the pre power through the UPS and the current draw was somewhere in the region of 600watts at moderate volume levels. The UPS can take the load easily though he preferred not to run it this way as the back up levels come down significantly and he would like to avoid any abrupt restarts for the computer.

A quality surge protector is all you need. What needs to be avoided is abrupt restarts of AV equipment.
 
AMITNOIDA said:
My 1.5 year old Marantz SR-6004 Receiver while running has suddenly faced with the problem of flashing red light and stopped delivering picture and sound.
That day I was running the AVR on our society DG Set (as there was power cut at that time) through a Bluebird Stabiliser and Belkin surge protector (ordinary model not Gold Series). The problem occured, when the City Power was restored and power was switched over from our Society DG Set to City Power.

As per the AVR Service Manual, it requires to be sent to Service Center. Does any FM had faced similar problem with their AVRs?

Can the problem be rectified by any Reset switch inside?
Click to expand...

I had flashing LED problem two years back in My SR 5003 which force it into protection mode. There use to be resetting mechanism by pressing 2 buttons. (SURROUND mode and CLEAR pressed together. It would be available in the manual. I cant remember as i have replaced this reciever with Denon 1911 later) The entries in the memory would be flushed after the reset. But the problem can re-occur without any trigger. This problem is discussed in some internet forums in detail.

vjc
 
sandeepmohan said:
A quality surge protector is all you need. What needs to be avoided is abrupt restarts of AV equipment.
Click to expand...
Can this surge protector be connected to a ups? My main issue is with the power going off for 30 seconds before the generator kicks in. Atleast that will give me enough time to shut down the system when there is a power failure.

Also, would the surge protector protect the avr when used with DG power.why I am adding that is because at times it is very difficult to know whether the power is running on the mains or dg backup since I stay in an apartment.


Sent from my GT-I9100 using Tapatalk
 
ghatgepatil said:
Just use a higher than necessary electronic voltage stabilizer like 4 KVA rating, even though your actual load is in the 1 KVA range with all HT units running together. Just make sure that the stabilizer is provided with high as well as low voltage auto-cutoff facility. Just like the ones used for air-conditioners.

But what really makes me think is, how is it you guys have the GUTS to run such expensive equipments on 'irregular/unfiltered' DG power, when there is an outrage on the regular one? Regular is as such of suspect quality (which needs careful individual regulation), DG would be trash-loaded.
Click to expand...

Yes, I am also cursing myself to run the AVR on DG Set on that day. In fact that was the first day to try running AVR with DG Set power as there was long power cut during watching the 'Lincoln' movie. It was my foolishness.
 
vjc said:
I had flashing LED problem two years back in My SR 5003 which force it into protection mode. There use to be resetting mechanism by pressing 2 buttons. (SURROUND mode and CLEAR pressed together. It would be available in the manual. I cant remember as i have replaced this reciever with Denon 1911 later) The entries in the memory would be flushed after the reset. But the problem can re-occur without any trigger. This problem is discussed in some internet forums in detail.

vjc
Click to expand...

Thanks Vjc. You are the first person giving some hope for resetting the problem at home. Let me search the manual now.
 
sandeepmohan said:
Run it through a UPS or a Stabilizer so there is no sudden restart of sensitive AV equipment.

You will have to size your UPS or stabilizer requirement based on the equipment you wish to protect.
Click to expand...

So the setup should be:

Mains -> Surge Protector -> UPS -> AVR

is that correct??

Also, would any UPS do or should I only go for a sine wave one?

Any suggestions on what surge protector to buy?
 
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You guys are still at it! Amazing!

The HT electrical line must NOT have the back-up electrical feed. Period.

When there is no regular electric supply, the HT must not be run. Even in case of a pure 'regular' line, it has to have an electronic stabilizer of 'high' capacity WITH auto cut-off on high and low voltages. ALSO, very important to note, the stabilizer MUST have a timer too. When the 'regular' electricity is back, the stabilizer should start the electrical feed after a good 3 minutes, a period considered sufficient to make sure the power supply is duly moderated during this time lag.
 
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