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andyfras
Posted: Tue Jan 31, 2012 3:12 pm Reply with quote
Frequent contributor Joined: 25 Jul 2005 Posts: 3042 Location: Fleet, Hampshire (Hannington)
I have just acquired a bit of kit (Hot Air SMD Rework Station) that will enable me to replace, amongst other things, a faulty USB chip (U54, NET2270) on a Toppy.

I've seen a few with this fault, but I need to know if it's worth me trying to source the chips, probably directly from China, as they are not readily available. I have 2 faulty mainboards that I can use for spares for this and maybe other chips.

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mavison
Posted: Wed Feb 01, 2012 3:25 pm Reply with quote
Frequent contributor Joined: 30 May 2007 Posts: 223 Location: Kent, UK
Ooooh! I have a spare 5800 which I believe is ok except for the USB (blown by one too many USB plug-ins when I was running & upgrading two side by side).

I would be interested ... depending on your cost plus p&p of mainboard or whole box.

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andyfras
Posted: Wed Feb 01, 2012 4:24 pm Reply with quote
Frequent contributor Joined: 25 Jul 2005 Posts: 3042 Location: Fleet, Hampshire (Hannington)
PM sent to mavison.

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Toppy PSU repair service or capacitor kits for DIY available - PM me for details.
MyStuff 6.5 : Little Clock : MHEGOnOff : Extend : EPG2MEI : SecCache : EIT_Sub : TSSaver
Channel Organiser : Tap Commander : USB Accelerator : HDD Info : PCControl : Signal Monitor : MyInfo
URC-7555 remote: TF5800 1TB with fan, Recommended_5800.tfd + CfPePsScWfZ
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ces
Posted: Thu Feb 02, 2012 1:24 pm Reply with quote
Regular contributor Joined: 28 Apr 2007 Posts: 83
I suspect my 5800 was one of the ones passing through your hands with a duff USB.

I too am interested but don't really want to be without it for a while as everything is hunky dory at the moment..... [touches wood].

Do you want to PM me too?
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andyfras
Posted: Thu Feb 02, 2012 2:55 pm Reply with quote
Frequent contributor Joined: 25 Jul 2005 Posts: 3042 Location: Fleet, Hampshire (Hannington)
ces wrote:
Do you want to PM me too?

After I've practised on mavison's. Laughing

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Toppy PSU repair service or capacitor kits for DIY available - PM me for details.
MyStuff 6.5 : Little Clock : MHEGOnOff : Extend : EPG2MEI : SecCache : EIT_Sub : TSSaver
Channel Organiser : Tap Commander : USB Accelerator : HDD Info : PCControl : Signal Monitor : MyInfo
URC-7555 remote: TF5800 1TB with fan, Recommended_5800.tfd + CfPePsScWfZ
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thesaint
Posted: Thu Feb 02, 2012 10:14 pm Reply with quote
Frequent contributor Joined: 15 Apr 2005 Posts: 366 Location: Darlington
andyfras wrote:
ces wrote:
Do you want to PM me too?

After I've practised on mavison's. Laughing

Good job you added the 's' on the end there Andy

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the saint

TF5800[/b], F/W: MS6.4 Recommended F/W 2/6/2009 +CwFmOtTdVr
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Models TF5800 x 3, 2 x160gB Black & 1 xSilver
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mavison
Posted: Thu Feb 02, 2012 11:18 pm Reply with quote
Frequent contributor Joined: 30 May 2007 Posts: 223 Location: Kent, UK
Me too!

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andyfras
Posted: Thu Feb 16, 2012 2:39 pm Reply with quote
Frequent contributor Joined: 25 Jul 2005 Posts: 3042 Location: Fleet, Hampshire (Hannington)
I can now reveal that the initial repair of mavison's mainboard was not successful. I suspect that the USB chip from the donor mainboard was faulty. I swapped it with my spare mainboard, so mavison's Toppy is now fully operational.

I have managed to source the chips from China and they arrived today, so I set about repairing mavison's original mainboard (again). This time I was successful. Very Happy

It's a lot trickier than I thought it would be, but hopefully it'll get easier with practice.

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Toppy PSU repair service or capacitor kits for DIY available - PM me for details.
MyStuff 6.5 : Little Clock : MHEGOnOff : Extend : EPG2MEI : SecCache : EIT_Sub : TSSaver
Channel Organiser : Tap Commander : USB Accelerator : HDD Info : PCControl : Signal Monitor : MyInfo
URC-7555 remote: TF5800 1TB with fan, Recommended_5800.tfd + CfPePsScWfZ
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mavison
Posted: Thu Feb 16, 2012 3:39 pm Reply with quote
Frequent contributor Joined: 30 May 2007 Posts: 223 Location: Kent, UK
Congratulations! I am glad you beat it into submission. Excellent service as usual. I hope you have a few more to do!

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TF5800, TS On, F/W: MS6 Recommended F/W 12/9/2009 -Sy+BmC0CbCfCtDEvEzFsIPePsScUUuWfZ
TAPs: TAP Commander 1.34; EPG2MEI v0.96; Extend v1.7; Font Manager 1.0d; MyStuff 6.4; TF5000 Display v1.53; SecCache (UK) v0.4; EIT Sub (Game) v0.6; MyInfo B5.5; ScreenCapture with OSD V3.0; (Power Restore V0.7.7);
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alan_m
Posted: Thu Feb 16, 2012 4:04 pm Reply with quote
Frequent contributor Joined: 17 Oct 2006 Posts: 3147 Location: Southchurch Village, Southend-on-Sea
mavison wrote:
Congratulations! I am glad you beat it into submission. Excellent service as usual. I hope you have a few more to do!


The few people who do this type of repair (on a irregular basis, as a one off) where I work make use of braid to clear bridged joints. They also use a USB microscope to inspect the finished repair. The microscope is similar to
http://www.ebay.co.uk/itm/USB-Microscope-NEW-Cool-This-Gadget-Gift-Educational-Fun-/220928694295?pt=UK_Toys_Creative_Educational_RL&hash=item3370605817

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5800 - 1Tbyte HD and fan F/W: MS6, 5.13.65T 18 Nov 2010 -Te+B2D plus aXeL
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andyfras
Posted: Thu Feb 16, 2012 10:49 pm Reply with quote
Frequent contributor Joined: 25 Jul 2005 Posts: 3042 Location: Fleet, Hampshire (Hannington)
I did use desolder braid to clear solder bridges between the pins.

In order to see what I was doing, I doubled up the reading glasses, but the microscope sounds a much better idea.

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Toppy PSU repair service or capacitor kits for DIY available - PM me for details.
MyStuff 6.5 : Little Clock : MHEGOnOff : Extend : EPG2MEI : SecCache : EIT_Sub : TSSaver
Channel Organiser : Tap Commander : USB Accelerator : HDD Info : PCControl : Signal Monitor : MyInfo
URC-7555 remote: TF5800 1TB with fan, Recommended_5800.tfd + CfPePsScWfZ
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andyfras
Posted: Fri Feb 17, 2012 10:23 am Reply with quote
Frequent contributor Joined: 25 Jul 2005 Posts: 3042 Location: Fleet, Hampshire (Hannington)
While following the eBay link for the microscope, I came across this:

http://www.ebay.co.uk/itm/Mini-60X-Microscope-Jewelry-Loupe-LED-Magnifier-Currency-Detecting-Pocket-/230738421995?

which I've splashed out on. Very Happy

I'll let you know how it is when I get it.

_________________
Toppy PSU repair service or capacitor kits for DIY available - PM me for details.
MyStuff 6.5 : Little Clock : MHEGOnOff : Extend : EPG2MEI : SecCache : EIT_Sub : TSSaver
Channel Organiser : Tap Commander : USB Accelerator : HDD Info : PCControl : Signal Monitor : MyInfo
URC-7555 remote: TF5800 1TB with fan, Recommended_5800.tfd + CfPePsScWfZ
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ryclark
Posted: Fri Feb 17, 2012 10:42 am Reply with quote
Frequent contributor Joined: 10 Jul 2005 Posts: 1539 Location: Shropshire
It will be interesting to see how you get on with it. Wink

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mstombs
Posted: Fri Feb 17, 2012 3:57 pm Reply with quote
Frequent contributor Joined: 31 Dec 2006 Posts: 670
@andyfras I have one just like that, or should I say 'had' because they are so small I can't remember where I saw it last..
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alan_m
Posted: Thu Mar 01, 2012 9:38 pm Reply with quote
Frequent contributor Joined: 17 Oct 2006 Posts: 3147 Location: Southchurch Village, Southend-on-Sea
andyfras wrote:

I'll let you know how it is when I get it.


Andy,

Recommended viewing (from a Usenet group)
http://www.youtube.com/watch?v=5uiroWBkdFY

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www.tap-room.com for TaP news, Jul/Aug 2014 edition now out
5800 - 1Tbyte HD and fan F/W: MS6, 5.13.65T 18 Nov 2010 -Te+B2D plus aXeL
Auto Start:MyStuff 6.5|EPG2MEI v0.96|Extend v1.7|SecCache (UK) v0.4|TF5000 Display v1.53|MHEG On/Off A3
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