DILLIGAF 0 Posted January 16, 2009 Report Share Posted January 16, 2009 Back on this old chestnut again. Ive scoured the internet, back posts etc. does any one know the numbers that deben scratched off the chips in the Mk1 locator boxes??? I know deben have a patent on the design and dont want you to copy it but i aint paying silly money to get them repaired. I dont want to 'upgrade' to a Mk3, All i want is those numbers. Most comon cause of the Mk1 playing up is dry joints on the solderring, normally on the depth wheel. Unfortunately ive got a box with bigger problems now and have tested it all except for those chips. Quote Link to post
richie 1 Posted January 16, 2009 Report Share Posted January 16, 2009 is this what your after, if so, ill take a clearer shot later on.. Quote Link to post
Guest ferret feller Posted January 16, 2009 Report Share Posted January 16, 2009 the top pic with the ygrey bar at the bottom of the unit.... mine has snapped Quote Link to post
The one 8,513 Posted January 16, 2009 Report Share Posted January 16, 2009 But the big black chips have the numbers scraped off. i took mine in to work and the guy said it might take you two weeks to identify all the chips half a hour to build one once you know what they are and all for about £2 Quote Link to post
Lerk 0 Posted January 16, 2009 Report Share Posted January 16, 2009 the top pic with the grey bar at the bottom of the unit.... mine has snapped That's just a ferrite rod onto which they've wound the search coil. If you're feeling industrious you could wind a new coil onto a replacement rod, just make sure you record the winding pattern and number of coils as you disassemble the old one... See, I knew going to tech for 5 years would come in handy at some point! Quote Link to post
Lerk 0 Posted January 16, 2009 Report Share Posted January 16, 2009 Back on this old chestnut again. Ive scoured the internet, back posts etc. does any one know the numbers that deben scratched off the chips in the Mk1 locator boxes??? I know deben have a patent on the design and dont want you to copy it but i aint paying silly money to get them repaired. I dont want to 'upgrade' to a Mk3, All i want is those numbers.Most comon cause of the Mk1 playing up is dry joints on the solderring, normally on the depth wheel. Unfortunately ive got a box with bigger problems now and have tested it all except for those chips. Sorry just realised your a different person to the other post! Has anyone got a schematic of the circuit board, it'd probably make it easier to work out what the chip is doing before you start trying to work out a number... Quote Link to post
PETEWINN 5 Posted January 16, 2009 Report Share Posted January 16, 2009 The grey bar is a ferrite rod aerial, available from maplin. http://www.maplin.co.uk/module.aspx?moduleno=859 Quote Link to post
Lerk 0 Posted January 16, 2009 Report Share Posted January 16, 2009 The grey bar is a ferrite rod aerial, available from maplin. http://www.maplin.co.uk/module.aspx?moduleno=859 Without knowing the tuning of the standard antenna this would be useless for anything but the rod, unless you have a 'henry meter' the only way to know is count the windings and rebuild to the original spec. Unless someone has fitted one of these as a replacement and can say otherwise... Quote Link to post
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