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14th March 2019, 21:50 | #11 | |
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I don't know if you've delved inside one of these before, but no matter, if you want I can do the job for you. It's been a while since I've had one of these apart, but it's like riding a bike, you tend not to forget Brian |
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14th March 2019, 21:59 | #12 | |
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14th March 2019, 22:03 | #13 | |
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The chip in question is an 8 pin soic and looks like this. Brian |
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14th March 2019, 22:06 | #14 |
This is my second home
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Thanks Brian I'll let you know how we get on.
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15th March 2019, 11:51 | #15 |
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This is the unit.
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16th March 2019, 07:47 | #16 |
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Yes, that's dead easy to do Mick, the dials etc complete with their motors unplug from the PCB, allowing complete access to the PCB.
In many ways they are easier to disassemble than a 75 IPK, as the needles do not require to be removed from the faces. Once the fascia is opened up, you will see the temperature and fuel gauges are separate from the rev counter and speedo. The screws securing the mylar circuit to the back of the white plastic part, and then the PCB are removed, allowing the removal of the rev counter speedo, then once out of the plastic part, the PCB can be gently prised away from the speedo and rev counter stepper motors, which will leave eight "prongs" sticking up from the PCB, the interconnects between the motor and PCB are designed to separate in this way. You can then exchange the 93C46 serial eeprom Hope this helps, or if you don't fancy doing the job, as mentioned you can bung them in a box and post them up to me and I'll sort them for you Brian |
16th March 2019, 16:08 | #17 |
This is my second home
2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009
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Hi Brian,I cleaned up the body earth as suggested but unfortunately no joy with the rev counter fault. Thinking about it if you tap the dash binacle over the instrument pack it normalises the rev counter to read correctly for a short time,this suggests a fault with the instrument itself.
I'll get both units posted off to you at the end of next week.Can you pm me your details please? Many thanks.
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26th March 2019, 19:47 | #18 |
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And as I went to the post office to collect the parcel that wasn't delivered yesterday by parcel force, another red card awaited me on my return
This is the 93C46 Phil was talking about Done dusted, and on it's way back By the way, I suspect the original problem was caused by the needle fouling the face of the rev counter. Brian |
26th March 2019, 22:46 | #19 |
This is my second home
2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009
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That chip is a lot smaller than I had imagined Brian,pretty delicate stuff to work with.I'll pass on the good news to the 75 that the 45 will soon be back in service.It not very happy having to work for a living Much appreciated
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27th March 2019, 14:32 | #20 |
This is my second home
2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009
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Posts: 8,757
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Thanks for the quick turn around Bri.All refitted, everything working fine and now showing the correct mileage.
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