| House Monitor Panel [message #273800] |
Mon, 16 March 2015 11:08  |
Galen
Messages: 146
Registered: November 2011
Location: New Virginia, IA
Karma: 0
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Senior Member |
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Has anyone ever repaired their house monitor panel? The instrument cluster with the gauges for LP, waste, water, and battery? Mine works on System Check, but not on Monitor On. All the senders (minus the waste tank - it's disconnected) work fine and measure accurately on System Check. I have good supply voltage, a good ground, and the lights work on both modes but the gauges are unresponsive only on Monitor On.
I need to pull it, but looking at the trace it's a pretty simple circuit with what appears to be only two components (aside from the bulbs and gauges themselves. I could see one from the front and it looks like a diode or maybe a zener diode, and I'm guessing one of these two is bad. Just from a quick glance at the traces it looks like these are in series with the switched source voltage.
Just wondering if anyone had ever documented these. Thanks.
Galen
edit to add - this is the stock panel from a 78 palm beach I am speaking of.
Galen Briggs
New Virginia, Iowa
1978 Palm Beach
[Updated on: Mon, 16 March 2015 11:09] Report message to a moderator |
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| Re: [GMCnet] House Monitor Panel [message #273835 is a reply to message #273800] |
Mon, 16 March 2015 17:57  |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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Galen,
The circuit boards that were built in the 70’s today are somewhat brittle and the traces can fail and lift. I know that Jim K., Jim B, and Alex Sirum talk to Jeff Sirum probably have a number of units that will work.
J.R. Wright
30' Buskirk Stretch
Michigan
On Location in Tucson
> On Mar 16, 2015, at 9:08 AM, Galen Briggs wrote:
>
> Has anyone ever repaired their house monitor panel? The instrument cluster with the gauges for LP, waste, water, and battery? Mine works on System
> Check, but not on Monitor On. All the senders (minus the waste tank - it's disconnected) work fine and measure accurately on System Check. I have good
> supply voltage, a good ground, and the lights work on both modes but the gauges are unresponsive only on Monitor On.
>
> I need to pull it, but looking at the trace it's a pretty simple circuit with what appears to be only two components (aside from the bulbs and gauges
> themselves. I could see one from the front and it looks like a diode or maybe a zener diode, and I'm guessing one of these two is bad. Just from a
> quick glance at the traces it looks like these are in series with the switched source voltage.
>
> Just wondering if anyone had ever documented these. Thanks.
>
> Galen
> --
> Galen Briggs
> New Virginia, Iowa
> 1978 Palm Beach
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| Re: House Monitor Panel [message #273838 is a reply to message #273800] |
Mon, 16 March 2015 19:26 |
Galen
Messages: 146
Registered: November 2011
Location: New Virginia, IA
Karma: 0
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Senior Member |
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Thanks. I looked a little closer when I got home and I'd say they might be zener diodes to keep the needles from banging, with no id markings that I can see without pulling them from the circuit. For now, I just bridged the switch wiring for the side the side that isn't working in on the side that is working.Not my idea of a fix, but I have bigger fish to fry and don't want to just start guessing at component values. Maybe when the second side fails I'll worry about it unless I hear what it needs.
Galen Briggs
New Virginia, Iowa
1978 Palm Beach
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