DIY volvo penta instrument panel

There should be an envelope icon, near the top right of the YBW forum page.

Ahhhh ...... hold on a minute ........ maybe you need to have had a minimum number of posts before you're trusted to send a pm!!!
 
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RIBW said:
Using much plagiarism and a little logic, I wrote myself a document (in Word) that further explains this circuit diagram. I have emailed it to you as an attachment using the email address on your signature webpage. I have also sent a diagram of a test jig (in Powerpoint). The latter covers a project to integrate a coolant flow alarm but the bare bones test arrangement can be seen.

The circuit, which is pretty robust electrically (i.e. no particularly sensitive components), has idiosyncrasies that need to be accommodated. What has convinced you the circuit is U/S?

If your problem persists, I have a test box for the push button ON/OFF version of this panel on board and I'll be alongside in Falmouth in the first week of October if you want to test something.

Bob
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Huge thanks for the email with word doc attached: very useful. (y)
 
Hello!

I have the very same problem with two 'bugged' modules and I'm figuring how to make my own circuit as Volvo is selling them from almost 500€ (and I will need two!).

I tried to replicate the circuit with the scheme that appears in the manual of the motor, but it doesn't work (I probably used the wrong transistor and resistors).

Could you send me that precious document to me too? weribasura@gmail.com

It will be much apreciated!
 
As I mentioned in #19, I have been away and am just back and now trying to catch up on admin.

I have no idea who has received what so I am sending what is possibly a repeat by email.

Has everyone a copy now?

Bob
 
RIBW said:
Des,
I think I have found the document but I need an email address to send it to. I am away a lot of the time at the moment and may be a little slow replying after today.
Bob
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Sorry for the inconvenience, any chance ditto above. My MD2030 2002 instrument panel is also shot. Am looking at DIY. Just joined this forum but have been at cruisers forum for many years. I can send email address. Still trying to work out how to pm.
 
snowbird30ds said:
A bit that still has me confused is why a 3.3v zener? Surely a 13v zener would make more sense if it's to supply power only when the engine is running?
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I think you will find that the ideais that ir drops the voltage by 3.3 volts to supply the buzzer circuit with approx 10 volts
 
FWIW here is the diagram originally posted by RIBW, although as posted the preheat warning light circuit had been adapted for another purpose'
The annotations explain some of the less obvious features

VP electronic module.jpg
 
OK chaps circuit built and working, next question is with two engines and one starter battery is there any reason at all to have 2x volt meters? I am assuming they will be giving me the same info anyway.
Annoyingly I thought of this just after ordering a set of new gauges but I have bought a 52mm round depth sounder so could use one of the holes for this instead and just use the one voltmeter, I'd likely use a couple of diodes to a relay so it's powered by either engine or both without back feeding.
 
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