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Chat Area => General Discussion Area => Topic started by: Auto Addict on 09 December 2006, 08:36:27

Title: So much for disconnecting the battery.
Post by: Auto Addict on 09 December 2006, 08:36:27
Went to the dealers yesterday to pick up some bits and pieces.

Outside the service bay was a brand new Vectra with it's bonnet up.

Had a quick look (being nosy) they were recharging the battery with a heavy duty battery charger with the battery still connected.
Title: Re: So much for disconnecting the battery.
Post by: sir moanalot on 09 December 2006, 09:00:56
probably been asked to do it like that cos the owners lost the radio code, i worked in the mechanics game for a few years and got out cos theres too many "tamperers".
i never wanted to get to the stage of electronic control engines. you would not believe how often we had "tamperers" come in with squealing brakes only to find they had put the pads in the wrong way round !!! tone
Title: Re: So much for disconnecting the battery.
Post by: x25xe on 09 December 2006, 10:45:01
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probably been asked to do it like that cos the owners lost the radio code, i worked in the mechanics game for a few years and got out cos theres too many "tamperers".

Far better to loose the radio for a while, apply for the code and save the alternator ECU etc. in my opinion.
Title: Re: So much for disconnecting the battery.
Post by: Auto Addict on 09 December 2006, 13:03:27
This was a brand new unregistered Vectra.
Title: Re: So much for disconnecting the battery.
Post by: Taxi_Driver on 09 December 2006, 15:34:39
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This was a brand new unregistered Vectra.

1. He'd have to go and find the correct size spanner.
2. Re-enter radio/cd code
3. Reset the electric windows/sunroof

Sod doing all that......lets just connect the charger with the battery connected  ;D ::)
Title: Re: So much for disconnecting the battery.
Post by: Markjay on 09 December 2006, 15:58:19
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This was a brand new unregistered Vectra.

Pitty, if it had a registration plate you could publish it here so that we all know not to buy it  ;D

Title: Re: So much for disconnecting the battery.
Post by: TheBoy on 09 December 2006, 19:57:50
I was in PC World earlier, picking up some shite I'd order via their website. Anyway, had to wait in queue for repairs, and watched in horror as 'technician' dismantled a laptop, removed SO-DIMM all without any antistatic protection, and fitted new module...    ...I expect that will need replacing again in a few months. Tosser.
Title: Re: So much for disconnecting the battery.
Post by: Taxi_Driver on 09 December 2006, 20:17:24
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I was in PC World earlier, picking up some shite I'd order via their website. Anyway, had to wait in queue for repairs, and watched in horror as 'technician' dismantled a laptop, removed SO-DIMM all without any antistatic protection, and fitted new module...    ...I expect that will need replacing again in a few months. Tosser.

So who carnt spell sugar in the naughty words filter  ::)
Title: Re: So much for disconnecting the battery.
Post by: Taxi_Driver on 09 December 2006, 20:23:22
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I was in PC World earlier, picking up some shite I'd order via their website. Anyway, had to wait in queue for repairs, and watched in horror as 'technician' dismantled a laptop, removed SO-DIMM all without any antistatic protection, and fitted new module...    ...I expect that will need replacing again in a few months. Tosser.

He was a Tosser if he didnt earth himself seconds before doing the job.....i used to quite often work on laptops/pc's etc and usually couldnt be arsed to wear an anti static strap.....but i always used to touch an earth before touching anything remotely static sensitve
Title: Re: So much for disconnecting the battery.
Post by: Gwilym on 09 December 2006, 22:03:34
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I was in PC World earlier, picking up some shite I'd order via their website. Anyway, had to wait in queue for repairs, and watched in horror as 'technician' dismantled a laptop, removed SO-DIMM all without any antistatic protection, and fitted new module...    ...I expect that will need replacing again in a few months. Tosser.

So who carnt spell sugar in the naughty words filter  ::)


That depends on whether you spell shit with or without an e

shit
shite
Title: Re: So much for disconnecting the battery.
Post by: TheBoy on 09 December 2006, 22:13:24
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I was in PC World earlier, picking up some shite I'd order via their website. Anyway, had to wait in queue for repairs, and watched in horror as 'technician' dismantled a laptop, removed SO-DIMM all without any antistatic protection, and fitted new module...    ...I expect that will need replacing again in a few months. Tosser.

He was a Tosser if he didnt earth himself seconds before doing the job.....i used to quite often work on laptops/pc's etc and usually couldnt be arsed to wear an anti static strap.....but i always used to touch an earth before touching anything remotely static sensitve
Earthing by touching case before helps but does not prevent ESD.
Title: Re: So much for disconnecting the battery.
Post by: Lawman on 09 December 2006, 22:23:58
Most of the boards I work with are pretty bomb proof, not laptops though haha :-/
Title: Re: So much for disconnecting the battery.
Post by: TheBoy on 09 December 2006, 22:28:45
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Most of the boards I work with are pretty bomb proof, not laptops though haha :-/
No electronic boards are immune from ESD ;)
Title: Re: So much for disconnecting the battery.
Post by: Lawman on 09 December 2006, 22:36:01
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Most of the boards I work with are pretty bomb proof, not laptops though haha :-/
No electronic boards are immune from ESD ;)


Think about that the next time you get in a lift then Mr TheBoy  ;)
Title: Re: So much for disconnecting the battery.
Post by: TheBoy on 09 December 2006, 22:37:53
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Most of the boards I work with are pretty bomb proof, not laptops though haha :-/
No electronic boards are immune from ESD ;)


Think about that the next time you get in a lift then Mr TheBoy  ;)
Noooo! Don't say that! ;D
Title: Re: So much for disconnecting the battery.
Post by: Lawman on 09 December 2006, 22:42:52
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Most of the boards I work with are pretty bomb proof, not laptops though haha :-/
No electronic boards are immune from ESD ;)


Think about that the next time you get in a lift then Mr TheBoy  ;)
Noooo! Don't say that! ;D

Muahahahaha! ;)

 ::)

Seriously though, I've seen boards stacked then carried and generally roughly handled...they can take it ;)
Title: Re: So much for disconnecting the battery.
Post by: Marks DTM Calib on 10 December 2006, 10:23:54
They might at first....but time will tell.

Seriously, ESD is a big issue, even more so in the modern world of sub micron silicon (almost everywhere now).

In our factories, its a big deal with antistatic floors, footwear and heal straps (wrist straps are rarely used in a production environment) and ESd can build up with just the movement of an arm (hence touching a case before hand its no guarantee...)

The big issue is that ESD can often do un-seen damage which can ause problems later.....like damaging the aparsitic diodes on the IC's I/O, memory is very prone to such damage

It costs big bucks to impliment and follow and buisnesses dont spend money unless they have to...
Title: Re: So much for disconnecting the battery.
Post by: TheBoy on 10 December 2006, 11:06:47
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The big issue is that ESD can often do un-seen damage which can ause problems later
That is the big problemt with ESD - people change stuff without protection, and because it works afterwards, think that its OK.  Its not, and damage would have been done - often resulting in differcult to find intermittent problems.

Also, "it's ok, I held by edge of board" type comments aren't valid either.
Title: Re: So much for disconnecting the battery.
Post by: Marks DTM Calib on 10 December 2006, 15:10:39
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Also, "it's ok, I held by edge of board" type comments aren't valid either.

Nope, inner planes extend right to the egde of the PWB....
Title: Re: So much for disconnecting the battery.
Post by: Taxi_Driver on 10 December 2006, 18:27:15
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Also, "it's ok, I held by edge of board" type comments aren't valid either.

Nope, inner planes extend right to the egde of the PWB....

PWB? same as PCB? Last time i worked for a computer manufacturer (along time ago) they were designing PCB's upto 14 layers thick......wonders how many layers you can get to now?  :-/