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#282764 - 2019-02-14 08:00 Fault diagnosis on G68J
Registered: 2006-10-06
Posts: 204
Mr_Gimlet Offline
Hitchhiker
Mr_Gimlet Offline
Hitchhiker

Registered: 2006-10-06
Posts: 204
Loc: Melbourne, Australia
So I am having hiccups with my G68J. I turned on my family room system tonight (HTPC, HD621, 3x5200s, stereo amped rears).

The G68 is kind of cycling. It seems happy when turned off. The screen comes up with the Meridian logo, but then goes off as if I am cycling the front 'on/off button'. The sequence is screen up, a faint click, on/off flashes and then again. Each cycle is about 2-3s.

I did introduce an HD621 about a week ago and it's been working fine. I have turned off the HD621 to test, and I still get the issue. (I thought it might be crazy comms or something).

I'll probably reconfig the HD621 to drive the 5200s directly to keep Mrs_G happy, but I'd like to diagnose and fix.

Edit: OK, it's now made a burning smells so I'm guessing that suggests the power supply


Main system: 861v6, HD621, Oppo 103D, DSP8000.2, DSP7200SE HC, DSP3200, SGR Sub
Family room: Control:15, G68D, DSP5200 L/C/R
Edited by Mr_Gimlet; 2019-02-14 08:20.
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#282765 - 2019-02-14 08:24 Re: Fault diagnosis on G68J [Re: Mr_Gimlet]
Registered: 2007-09-23
Posts: 1,725
Syles Offline
Knows where his towel is
Syles Offline
Knows where his towel is

Registered: 2007-09-23
Posts: 1,725
Loc: London, UK
Definitely the power supply, hopefully it hasn’t taken anything else out yet.

Plenty of posts on here with info and replacement part numbers; if you can do DIY it is cheap, not so much through a dealer!

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#282766 - 2019-02-14 08:34 Re: Fault diagnosis on G68J [Re: Syles]
Registered: 2006-10-06
Posts: 204
Mr_Gimlet Offline
Hitchhiker
Mr_Gimlet Offline
Hitchhiker

Registered: 2006-10-06
Posts: 204
Loc: Melbourne, Australia
Thanks. Probably not comfortable doing it myself, but I'll probably try and find an independent. We don't really have dealers here anymore so I'll ask ona local forum.

Is there any way I can open up to look for something blackened and burnt, or should I just leave it to the professionals?

It's quite old and only a G68J, but I have just ponied up for the HD621 to get Bluray in the family room, so I would like it working.


Main system: 861v6, HD621, Oppo 103D, DSP8000.2, DSP7200SE HC, DSP3200, SGR Sub
Family room: Control:15, G68D, DSP5200 L/C/R
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#282769 - 2019-02-14 08:42 Re: Fault diagnosis on G68J [Re: Mr_Gimlet]
Registered: 2008-10-11
Posts: 495
Tarik Offline
Paranoid android
Tarik Offline
Paranoid android

Registered: 2008-10-11
Posts: 495
Loc: Gloucestershire, UK
Given the symptoms and the burning smell it is definitely the PSU so little to be gained by opening it up unless you are going to replace yourself.

Swapping the PSU is fairly easy and there is information on how to do it. The harder part is swapping the capacitors which should be changed at the same time as the PSU.

You then have to hope that none of the cards has been damaged when the PSU failed as that will pretty much mean it is unrepairable (at least cost effectively)


Lounge: DSP5200, 518
Snug: DSP33 x 5, 518, C61R
Office: M33

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#282784 - 2019-02-14 14:07 Re: Fault diagnosis on G68J [Re: Tarik]
Registered: 2004-08-07
Posts: 7,860
Ian Offline
President of the Imperial Galactic Government
Ian Offline
President of the Imperial Galactic Government

Registered: 2004-08-07
Posts: 7,860
Loc: Surrey, England, UK
Is anyone, Bruce maybe, keeping track of failed units and potentially salvageable cards? Or when power supply goes, is it invariably the same cards that it takes out?


Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 Nuc), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).
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#282785 - 2019-02-14 15:09 Re: Fault diagnosis on G68J [Re: Ian]
Registered: 2009-11-10
Posts: 1,978
CMB Integrations - Bruce Offline
Meridian Partner Knows where his towel is
CMB Integrations - Bruce Offline
Meridian Partner
Knows where his towel is

Registered: 2009-11-10
Posts: 1,978
Loc: Lexington, South Carolina, USA
Not officially. In my case with a G68ADV it took out the DSP card.


www.cmbintegrations.com

System #1 Trinnov Altitude 32-8-16, 271, 808v6, DSP8000SEUG, DSP7200SEHC, Revel B112, Monitor Audio Silver 10, Paradigm 85F, ATI 200WX7 Amp, JVC RS15, Shunyata Triton V3, Sigma power cables, Black Diamond Zero Edge screen. QNAP TS-251 3TB, Roon Nucleus.

System #2 Mark Levinson No515, No5805, Revel F228be.


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