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Search: Posts Made By: re-atari
Forum: Troubleshooting Audio Equipment 09-28-2020, 01:40 AM
Replies: 7
Views: 411
Posted By re-atari
Re: Denon AVR-X2000 mainboard caps bulging

I really wonder if and in what way the ELNA caps could be failing. Both measured completely in spec, 11.000 uF on my M4070 LCR meter and an ESR of 0,018 Ohm on my MESR-100. Could it be they fail when...
Forum: Troubleshooting Audio Equipment 09-27-2020, 03:54 PM
Replies: 7
Views: 411
Posted By re-atari
Re: Denon AVR-X2000 mainboard caps bulging

Hi Momaka, many thanx for your insights, it's always a pleasure to read your posts on Badcaps!

The X2 cap is indeed placed across the AC input of the standby PSU. I have attached page 121 of the...
Forum: Troubleshooting Audio Equipment 09-24-2020, 04:52 AM
Replies: 7
Views: 411
Posted By re-atari
Re: Denon AVR-X2000 mainboard caps bulging

The caps have no plastic discs on top, I can see the breach lines in the top of the metal can.
Sadly, the attached photo doesn't give a good image of the tops bulging. In reality it's clearly...
Forum: Troubleshooting Audio Equipment 09-23-2020, 10:37 AM
Replies: 7
Views: 411
Posted By re-atari
Denon AVR-X2000 mainboard caps bulging

I have been using a Denon AVR-X2000 receiver in my living room for several years now, works perfectly, am very pleased with it. Recently I acquired another one, advertised as defective with flashing...
Forum: Troubleshooting Audio Equipment 08-11-2020, 05:47 PM
Replies: 49
Views: 1,299
Posted By re-atari
Re: Strange malfunctioning LED audio peak level meter problem

Judging by the schematic you provided in your startpost, the 2 driver IC's are indeed located on the PCB holding the LED's. This PCB is connected to the mainboard through a 8 wire flatcable of some...
Forum: Troubleshooting TVs and Video Sources 08-10-2020, 04:26 AM
Replies: 26
Views: 2,484
Posted By re-atari
Re: UA32C6900 continuous restaring

Judging by your photo 3, it appears someone has already tried to fix the mainboard. It looks like the left side of IC 2 contains a large blob of solder, where IC 1 does not. See the attached photo,...
Forum: Troubleshooting Audio Equipment 05-07-2019, 01:46 AM
Replies: 12
Views: 3,283
Posted By re-atari
Re: Onkyo TX-NR414 doesn't switch on

My NR414 came with a remote with typenr. RC-834M. My SR803's remote (RC-620M) works on the NR414 as well, so chances are Onkyo remotes are largely interchangable.
You might also try to get hold of a...
Forum: Troubleshooting Computer Displays 09-13-2018, 09:03 AM
Replies: 7
Views: 1,102
Posted By re-atari
Re: Samsung S24D390HL flashing on and off - wrong power supply ?

I doubt the erroneous behavior the monitor is showing is actually caused by firmware corruption. The phenomena the firmware error causes are described in these threads:
...
Forum: Troubleshooting Audio Equipment 06-09-2018, 04:04 AM
Replies: 6
Views: 905
Posted By re-atari
Re: Philips HTS9140 3d Bluray , Which caps needed?

So the pcb in the pictures is not your board? If it is, you might want to check connector CN4001 (bottom right), judging by photo 1 it has a bent pin inside the connector. Beside that, the board's...
Forum: Troubleshooting Game Consoles & Other Weird Devices 04-13-2018, 06:10 AM
Replies: 6
Views: 1,358
Posted By re-atari
Re: Does anyone have a ( 18CV8P ) programmer

So, it's not a GAL, but a PEEL PLD. Looks like the P at the end of the chip type designation just stands for 'Plastic' (i.e. the IC casing). As long as you obtain a (NOS?) substitute of the same...
Forum: Troubleshooting Game Consoles & Other Weird Devices 04-13-2018, 02:30 AM
Replies: 6
Views: 1,358
Posted By re-atari
Re: Does anyone have a ( 18CV8P ) programmer

Is this a GAL? If so, an (ancient) HiLo ALL-07a takes AMI and GOULD PEEL18CV8, Hyundai HY18CV8, and ICT PEEL18CV8 and PEEL18CV8Z. A (just as ancient) DataIO Chiplab takes these as well, with...
Forum: Troubleshooting Audio Equipment 04-08-2018, 04:45 PM
Replies: 12
Views: 3,283
Posted By re-atari
Re: Onkyo TX-NR414 doesn't switch on

It looks like Onkyo didn't use identical relays in the 609 and 838. You can easily deduct the relay's coil voltage from it's typenr. My 414 has a SDT-S-109LMR2 built in, the '109' designation...
Forum: Troubleshooting Audio Equipment 04-08-2018, 03:24 AM
Replies: 12
Views: 3,283
Posted By re-atari
Re: Onkyo TX-NR414 doesn't switch on

I'd check the specs of the relay in your amp to make sure the coil resistance is OK. If it's a 9V type the 330 Ohm you measured sounds right, so the error probably resides elsewhere. My TX-NR414 had...
Forum: Troubleshooting Audio Equipment 03-30-2018, 05:13 AM
Replies: 13
Views: 3,604
Posted By re-atari
Re: Onkyo tx-sr606 fluorescent display not working

Depressing the top part of this connector unlocks the wires inside the connector, so you can pull the flatcable out. This type of connector fooled me as well when I had to fix my TX-SR803 a few years...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 03-26-2018, 06:18 AM
Replies: 294
Views: 14,975
Posted By re-atari
Re: Soldering station thoughts and guidelines

173878 173879

I'm keeping an eye out for a T12 iron on AliExpress ATM, and found this overview and description of available T12 tips there.

re-atari
Forum: Troubleshooting Audio Equipment 03-08-2018, 07:14 PM
Replies: 2
Views: 1,078
Posted By re-atari
Re: Denon AVR-X2000 trials & tribulations

I finally got this receiver fixed and up and running again. Turned out the fault was in the standby PSU. I got an identical PCB on loan, by doing measurements on both PCB's and comparing them I found...
Forum: General Electronics Technical Discussion 03-08-2018, 06:45 PM
Replies: 7
Views: 1,097
Posted By re-atari
Re: Help checking correct substitute for KMB2D0N60SA mosfet

Hi All,

I finally got around to order a replacement mosfet. As was kindly suggested, the Vishay item indeed turns out to be a valid drop in equivalent for the defective Korean one. As they were...
Forum: General Electronics Technical Discussion 02-14-2018, 07:36 AM
Replies: 7
Views: 1,097
Posted By re-atari
Re: Help checking correct substitute for KMB2D0N60SA mosfet

Yeah, it looks like manufacturer's focus these days lies with hastily announcing and introducing new equipment that has 'all the latest technology and standards' (that will of course be obsolete or...
Forum: General Electronics Technical Discussion 02-13-2018, 06:45 AM
Replies: 7
Views: 1,097
Posted By re-atari
Re: Help checking correct substitute for KMB2D0N60SA mosfet

Checking the standby PSU schematic and the datasheets I noticed every manufacturer has a different way of numbering the mosfet's pins. Denon calls the gate pin 3, drain pin 1 and source pin 2. KEC...
Forum: General Electronics Technical Discussion 02-10-2018, 06:01 PM
Replies: 7
Views: 1,097
Posted By re-atari
Re: Help checking correct substitute for KMB2D0N60SA mosfet

Thank you both for your replies. Much appreciated!

No problem of course, here's the schematic of the standby PSU. The mosfet in question is located immediately to the left of the 9-pin TOP258 IC....
Forum: General Electronics Technical Discussion 02-10-2018, 11:52 AM
Replies: 7
Views: 1,097
Posted By re-atari
Help checking correct substitute for KMB2D0N60SA mosfet

Hi all,

I'm looking for advice in the selection of a replacement for a defective KMB2D0N60SA mosfet. This one is used in a standby PSU, where it controls external current limit of a TOP258MG...
Forum: Troubleshooting Audio Equipment 12-26-2017, 03:45 AM
Replies: 2
Views: 1,078
Posted By re-atari
Re: Denon AVR-X2000 trials & tribulations

I had a chance to do some further investigations on this receiver yesterday evening.

I decided to desolder the SamYoung NXA caps on the Standby PSU pcb, in order to measure capacity and ESR out of...
Forum: Troubleshooting Audio Equipment 12-23-2017, 06:20 AM
Replies: 2
Views: 1,078
Posted By re-atari
Denon AVR-X2000 trials & tribulations

Hi all,

A few weeks back I picked up a defective Denon AVR-X2000 from an online marketplace similar to Craigslist. Seller replied to my mail inquiry that all of a sudden the receiver didn't...
Forum: Troubleshooting Audio Equipment 10-19-2017, 02:04 PM
Replies: 12
Views: 3,283
Posted By re-atari
Re: Onkyo TX-NR414 doesn't switch on

The old relay has a snap-on lid, quite easy to remove. I opened it up just to see if anything was visually out of order. Nothing by the looks of it, so I presume there must be a short somewhere...
Forum: Troubleshooting Audio Equipment 10-19-2017, 08:24 AM
Replies: 12
Views: 3,283
Posted By re-atari
Re: Onkyo TX-NR414 doesn't switch on

It appears the relay was indeed the culprit. I ordered an identical one on AliExpres, cost incl. shipping approx. 4,50. A little more than a week later the replacement was delivered to my door.
...
Showing results 1 to 25 of 102

 
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