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#268637 - 2017-10-13 17:31 Re: DSP life expectancy ***** [Re: Fiddler]
Registered: 2004-07-21
Posts: 1,784
MI' Offline
Knows where his towel is
MI' Offline
Knows where his towel is

Registered: 2004-07-21
Posts: 1,784
Loc: United Kingdom
Hi

"Sometimes" you can cut off the lead wires and with a 0.5mm drill in a little chuck, drill out the remainder of the lead from the board.

Just to clarify further I use a pin chuck and rotate drill bit by hand.

Works for me, but at your own risk

Regards I


Under review
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#268646 - 2017-10-13 21:41 Re: DSP life expectancy [Re: MI']
Registered: 2000-05-28
Posts: 8,672
Fiddler Offline
President of the Imperial Galactic Government
Fiddler Offline
President of the Imperial Galactic Government

Registered: 2000-05-28
Posts: 8,672
Loc: Northeastern, USA
We used a hand drill AFTER we removed the lead.

We cut the resistor at top first.

We had a "power" Solder Sucker but it was designed for more modern boards that can take heat better. It was kind of mixed results using it.

The non burned resistors came out easy.

But the burned ones the solder didn't melt or conduct heat very well.

If you leave the lead in and try to drill I think it would be very easy to drift away from the center because the lead would be lot harder than the material around it, which is mostly PCB board.

We did 30 Resistors !!

Here is an image of the bottom BEFORE we touched it. Not good.




- 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
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#268649 - 2017-10-14 03:16 Re: DSP life expectancy [Re: Fiddler]
Registered: 2012-05-01
Posts: 83
RobinASU Offline
Mostly harmless
RobinASU Offline
Mostly harmless

Registered: 2012-05-01
Posts: 83
Loc: San Francisco, California, USA
Looks like mine used to. You guys have been busy. It's amazing what long-term heat degradation can do.

How did you wind up with such a large collection of speakers?

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#268653 - 2017-10-14 08:08 Re: DSP life expectancy [Re: RobinASU]
Registered: 2004-07-21
Posts: 1,784
MI' Offline
Knows where his towel is
MI' Offline
Knows where his towel is

Registered: 2004-07-21
Posts: 1,784
Loc: United Kingdom
Hi,

The drill can wander, which is why I said "sometimes" for exactly the reason you state.

I have had success though

Regards I


Under review
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#268663 - 2017-10-14 12:36 Re: DSP life expectancy [Re: RobinASU]
Registered: 2000-05-28
Posts: 8,672
Fiddler Offline
President of the Imperial Galactic Government
Fiddler Offline
President of the Imperial Galactic Government

Registered: 2000-05-28
Posts: 8,672
Loc: Northeastern, USA
Originally Posted By RobinASU
How did you wind up with such a large collection of speakers?
That wasn’t even all of them smile some didn’t need repair.


- 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
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#268677 - 2017-10-14 17:44 Re: DSP life expectancy [Re: Fiddler]
Registered: 2008-10-11
Posts: 487
Tarik Offline
Paranoid android
Tarik Offline
Paranoid android

Registered: 2008-10-11
Posts: 487
Loc: Gloucestershire, UK
For the stubborn joints did you try adding a little flux and then adding solder to the joint? After that add a bit more flux before de-soldering.


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

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#268687 - 2017-10-14 19:47 Re: DSP life expectancy [Re: Tarik]
Registered: 2011-09-27
Posts: 41
Sean Offline
Harmless
Sean Offline
Harmless

Registered: 2011-09-27
Posts: 41
Loc: Worcester, UK
hi Tarik

just been reading the post on DSP, I have one that's just gone down I don't know where to start, I know the repair lad is gone. can you help me I'm in pershore not far

rgds Sean


Lounge: DSP5K, DSP5KC, M60, 504, 596, 565 Pioneer plasma, Sky HD.
Various Sonos: M20s, 207, 204.
Meridian owner since 1986,,,going to Naim
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#268694 - 2017-10-14 20:56 Re: DSP life expectancy [Re: Sean]
Registered: 2008-10-11
Posts: 487
Tarik Offline
Paranoid android
Tarik Offline
Paranoid android

Registered: 2008-10-11
Posts: 487
Loc: Gloucestershire, UK
Sean, PM sent


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

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#268701 - 2017-10-15 03:56 Re: DSP life expectancy [Re: Tarik]
Registered: 2000-05-28
Posts: 8,672
Fiddler Offline
President of the Imperial Galactic Government
Fiddler Offline
President of the Imperial Galactic Government

Registered: 2000-05-28
Posts: 8,672
Loc: Northeastern, USA
Originally Posted By Tarik
For the stubborn joints did you try adding a little flux and then adding solder to the joint? After that add a bit more flux before de-soldering.
Yes, did that on all of them.

It still didn’t flow/mix well on the burned ones. Still lots of resistance pulling out the burned ones.

The non burned ones practically fell out as soon as we touched it with the iron.

Traces were no longer adhered to the board.


- 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
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#268760 - 2017-10-15 21:09 Re: DSP life expectancy [Re: Fiddler]
Registered: 2004-04-20
Posts: 512
Jdb-si Offline
Paranoid android
Jdb-si Offline
Paranoid android

Registered: 2004-04-20
Posts: 512
Loc: New Jersey, USA
Great thread and thanks for posting those photos. Any other DSPs need maintenance like the resistors on the 5000s? I also have 5500s and 6000s, but never opened them up.

Thankfully, they have been working well so far, so no need to. The 5500s are almost 20 years old at this point. The 6000s are probably even older.


Theater: 861v4_LPS, HD621, Oppo 203, DSP6k, DSP5k5C, SW1600x2, DSP5k5, Plasma, (Zone 2)
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#268771 - 2017-10-16 07:18 Re: DSP life expectancy [Re: Jdb-si]
Registered: 2008-10-11
Posts: 487
Tarik Offline
Paranoid android
Tarik Offline
Paranoid android

Registered: 2008-10-11
Posts: 487
Loc: Gloucestershire, UK
Not sure about the other DSPs, but M60s share the same resistor problem so should be checked.

Also to state the obvious, centre speakers will be affected as well.


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

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#268772 - 2017-10-16 07:24 Re: DSP life expectancy [Re: Tarik]
Registered: 2000-05-28
Posts: 8,672
Fiddler Offline
President of the Imperial Galactic Government
Fiddler Offline
President of the Imperial Galactic Government

Registered: 2000-05-28
Posts: 8,672
Loc: Northeastern, USA
Originally Posted By Tarik
Not sure about the other DSPs, but M60s share the same resistor problem so should be checked.

Also to state the obvious, centre speakers will be affected as well.


We did 2 centers. Both cooked.


- 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
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