Today, I found my rear DSP3200 running (quietly) when the G61RSL was in standby, so I powered off the G61RSL waited a minute then switched it on again, but no display or functions.
I was wondering if this is one of the symptoms of a failed PSU. I checked the fuse, then opened the case and checked with my multimeter that I have power in the PSU.
I disconnected the power cable and measured the output.
Yellow/black 0v red/black 0v black/case 43v
Am I correct in assuming yellow should be +12v blue -12v and red +5v.
If the PSU has failed is it likely to have taken out other components, or do they just normally shutdown?
It's completely random/luck if it takes out other components with it.
My G68 blew twice and took other component out both times.
You also need to be careful measuring output on switching power supplies with no load. You can get erroneous readings.
Even if nothing is damaged it's recommend some capacitors be replaced.
- Fiddler (IMHO)
If you think listening to music is fun, try learning an instrument. HT: G61RSL, 4x5K, 5.5KHC, 2xSC6000, Transporter, HD621, Philips BDP7501 4K, Tivo, 65" LG OLED 4K C6 Computer: Foobar2000, 5K, Mojo, HiFiMan HE1000 V2
Not sure if I remember correctly but some early G68 PSU's were able to fail 'high' causing damage to other components, later ones failed low? Happy to be corrected.
Hi there, My G61RSL failed just before Christmas when the circuit breakers in the house tripped. Changed the fuse inside the unit a couple of times hearing a click on switch on then nothing else. Took to my local dealer who sent to Meridian. There was no further damage just the power supply itself. At least I got the upgrade to the Linear Power Supply as a requirement rather than just a replacement that the rest of the family would see as not a priority. Richard
G61R SL, HD621 M6 Front Artcoustic Speakers Diablo Surrounds - All SOLD! :-( Arcam Power amp for rear channels- Sold Sonos Surround system- sold
OPPO BDP-103 Virgin TIVO, PS4, Apple TV 4K LG 65 inch Oled Sennheiser Ambeo Soundbar
I disconnected the output from the PSU when measuring the voltages as I didn't want it to cause any further problems while I was testing.
I did a bit more investigating. I took off its case, discharged its main cap with a large resistor just in case it still had 400v.
Now I can see its a XP POWER ECM40UT31 so ordered one from Farnell. I see it has a small pot next to the outputs. I don't know if Meridian adjust it in any way.
The pot allows you to adjust the ouput voltage on the 5v tap. It should be 5.2v under load.
www.cmbintegrations.com One step from the Presidency #1 Trinnov Altitude 32-8-16, 271, 8000XE, 7200SEHC, 7200.2, Seaton F18, JL Fathom F113, Revel w990's, Kef R7, ATI 528 Amp, JVC RS4100K, SI screen. Roon Nucleus+, Eno AG, Eno M link, 218. #2 Mark Levinson No5105, Ayre VX8 and CX8, Vandersteen Treo CT, Preamp varies. #3 Meridian Ellipse
It is very unusual for capacitors beyond the power supply itself to fail. It is VERY usual for capacitors within the (switched mode) power supply itself to fail/alter in value after about 3 years (or less if your unit is located where cooling is poor).
It is possible to repair the power supply by replacing capacitors within it, but the supplies are so cheap to buy new (with a three year guarantee which XP Power are very good about honouring) that you would be mad to do so - or have far too much time on your hands and be looking for something fiddly to do - fiddly even with a desoldering station. I have done it but more for entertainment than anything else. Do set the 5v line to 5.2v as already advised. You cannot assume it is factory set to that.
It should be measured at the regulator on the COM PCB and should measure 5v. Suggestions of measuring 5.2v at the PSU are to approximately account for voltage drop between the PSU and the main processor.
www.cmbintegrations.com One step from the Presidency #1 Trinnov Altitude 32-8-16, 271, 8000XE, 7200SEHC, 7200.2, Seaton F18, JL Fathom F113, Revel w990's, Kef R7, ATI 528 Amp, JVC RS4100K, SI screen. Roon Nucleus+, Eno AG, Eno M link, 218. #2 Mark Levinson No5105, Ayre VX8 and CX8, Vandersteen Treo CT, Preamp varies. #3 Meridian Ellipse
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