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Forum: Troubleshooting Audio Equipment 12-28-2018, 10:24 AM
Replies: 8
Views: 299
Posted By nyogo
Re: Marantz NR1504 No sound

madan1: the weird thing is it doesn't matter that there is sound or not, the service menu always shows the correct fw version of each component. Also, when there is sound, I can switch through all...
Forum: Troubleshooting Audio Equipment 12-27-2018, 03:14 PM
Replies: 8
Views: 299
Posted By nyogo
Re: Marantz NR1504 No sound

15V, +/-7V,5V main lines are ok(clean, straight line) measured on the board connectors.

Checked the four EX4AV DC-DC converter, 1.1-1.2-1.8-3.3V good, measured on the "output" caps. I checked the...
Forum: Troubleshooting Audio Equipment 12-27-2018, 09:16 AM
Replies: 8
Views: 299
Posted By nyogo
Re: Marantz NR1504 No sound

Ok, now I'm a bit of confused.(and sad, because looks like there is another problem than R2A)

After a few days I had time to measure the up/downstreams. The receiver was unplugged from the power...
Forum: Troubleshooting Audio Equipment 12-26-2018, 05:15 AM
Replies: 8
Views: 299
Posted By nyogo
Re: Marantz NR1504 No sound

Thanks, this is a good idea with the up/downstreams, i'll check it.

The +/- 7V is present (~7.2V) and testing with pure/direct audio on, there is no analog signal coming from the R2A (at least...
Forum: Troubleshooting Audio Equipment 12-21-2018, 10:55 AM
Replies: 8
Views: 299
Posted By nyogo
Marantz NR1504 No sound

Hi all.

I got a used Marantz NR1504 AVR with a firmware problem. The amp was stuck in a "update failed-retry" loop, possibly failed when the owner tried to update the fw over the...
Forum: Announcements & Related News 12-20-2018, 02:16 PM
Replies: 21,283
Views: 1,236,788
Posted By nyogo
Re: New Members - please post your introductions here

Hi all, I'm nyogo from Hungary. Mainly dealing with software engineering(mobile platform) and repairing electronic gears just for fun.
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