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J
Does anyone have a complete circuit diagram for the gauge pack? And/or a diagram of the "wiring" runs and component locations? And/or at least a photograph of the board? I have the 78 electrical troubleshooting manual but that is not specific enough to solve this problem.
I have no voltage showing on the voltage gauge and the gen light on but the battery is being charged. Looks to me like a problem with the circuit board, but I hope to figure that out before taking the board out.
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22715
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
I can email you the wiring diagram, which includes a diagram of the PC board for the gauge cluster. Silly question....have you checked ALL of the fuses?
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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J
Thanks for the wiring diagrams.
After studying them and imagining the worst (a break in a printed circuit), I realized there is a connector on the back of the center gauge printed circuit board. And that there had recently been some work done to connect a new antenna to the radio, right below the connector. Fingers crossed (metaphorically) I took out the glove box, reached in and snapped the loose connector tight.
Probelms gone!
Thanks again for the quick response.
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Isn't it great when you find an EASY problem for a change? Happy Motoring!
Barry
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22715
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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in Forum: C3 Electrical, Body and Interior
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