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PaulB
Joined: 26 Oct 2007
Posts: 359
Location: Bonnie (but rainy) Scotland
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| Posted: Tue Sep 22, 2009 3:28 pm Post subject: Query on VDC TFB003 - VIM maintenance |
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Hi,
My apologies, I have no pictures as such to help in this query other than those in the Tech Bulletin.
VDC Tech Bulletin TFB003 http://www.curtpalme.com/docs/ElectrohomeMarqueeTechnicalBulletin_VDCDS_TFB_003.pdf (this is to eliminate ringing and prevent high voltage shutdown during lowbeam current) refers. (NOTE - this mod does not apply to an 03 VIM. )
Its the very last page that has the relevent details and where my query lies. The TFB states that the three SD101A diodes need to be attached to the ground at P4. Unfortunately the photo's in the bulletin are somewhat less than clear but it looks as if the diodes are attached to pad 4. However, looking at the VIM schematics, Ground is shown as being pad 3 if I'm reading it correctly!
Anyone able to clarify which pad the diodes attach to?
EDIT - Ah, a light bulb just appeared above my head - the diodes are attached to pad 7 which is four pads in from the left-side - I'd taken that to be pad 4 as I presumed the left-most pad to be pad one, its actually pad 10 I think - doh!
Thanks guys,
_________________
Paul
Last edited by PaulB on Tue Oct 13, 2009 2:54 pm; edited 2 times in total
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PaulB
Joined: 26 Oct 2007
Posts: 359
Location: Bonnie (but rainy) Scotland
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| Posted: Sun Oct 11, 2009 11:29 am Post subject: |
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Oh bugger!
I was just going ove my work on the VIM and I think that I have soldered in the diodes the wrong way round - anyone able to confirm this?
I think the black band indicating the cathode end should be nearest pin 7 - I have them with the band furthest away.
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Paul
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1031
Joined: 22 Mar 2006
Posts: 657
Location: Finland
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PaulB
Joined: 26 Oct 2007
Posts: 359
Location: Bonnie (but rainy) Scotland
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| Posted: Mon Oct 12, 2009 3:51 pm Post subject: |
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Phew, thats a relief! I didn't want to put it back into the chassis without being sure - many thanks Jarmo 
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Paul
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Mon Oct 12, 2009 9:14 pm Post subject: |
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nice soldering dude That's a standard feature now on all new VDC VIM's
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PaulB
Joined: 26 Oct 2007
Posts: 359
Location: Bonnie (but rainy) Scotland
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| Posted: Tue Oct 13, 2009 2:53 pm Post subject: |
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Thanks guys, just putting into practice the advice and knowledge gained from yourselves
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Paul
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