Instrument cluster circuit board

Discussion in 'General Ranchero Help' started by Clark, Oct 2, 2022.

  1. 1978GT

    1978GT In Overdrive GOLD MEMBER

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    I have 3 or 4 spare blue lenses that you can experiment on. PM your TX address and I'll send them as your Christmas present.
     
  2. uk ranchero

    uk ranchero In Third Gear

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    i took the lenses out and put in green leds. rewired to an ignition controled circuit
     
  3. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    I appreciate that, Thank you! PM on its way!
     
  4. 1978GT

    1978GT In Overdrive GOLD MEMBER

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    Another alternative, if the lenses don't work out:
    http://www.ebay.com/itm/224502822445?

    Instrument cluster circuit board 2022 1008.jpg
     
  5. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    I assume it's 10/$6.49? Those look a lot better than the circuit board ones I have now, and a bit cheaper by a few bucks.
     
  6. 1978GT

    1978GT In Overdrive GOLD MEMBER

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    Somebody can use this diagram:

    Instrument cluster circuit board 2022 1008 a.jpg
     
  7. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    Ah, there is a bracket, #045056. The bracket on the right, it's #045D56. So, anyone have that #045056 part?
     
  8. 1978GT

    1978GT In Overdrive GOLD MEMBER

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    Yeah, we got that! $20 including shipping. PM if interested.

    Dash Bracket 045D56 - Resized.JPG
     
  9. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    I am, but because I'm heading to Washington State on Tuesday, I'll have to wait till next weekend to send the cash for it.
     
  10. 1978GT

    1978GT In Overdrive GOLD MEMBER

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    I'll ship it to your TX address on Monday along with an envelope. Safe trip back and forth.

    Apologies to the OP for hijacking this thread.
     
  11. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    Yes, apologies from myself also.
     
  12. Clark

    Clark In Maximum Overdrive

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    Andrew,

    Got it today. Terrific! So pleased replacements are now available.

    Thanks, Clark
     
  13. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    For a sec, I thought you were talking to me, and I was wondering what I'd sent....;)
     
  14. andrewok1

    andrewok1 In Maximum Overdrive GOLD MEMBER SILVER MEMBER

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    Spread the word .
    Glad you're pleased
     
  15. Clark

    Clark In Maximum Overdrive

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    Looking over this printed circuit board, I'm wondering how the emergency "brake" warning light works. The light socket is connected to two paths on the circuit board but neither go to ground, at least not the ground used by the instrument lighting. Any ideas for this?
     
  16. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    The circuit is grounded by either the switch on the p-brake assembly, or the warning switch atop the prop valve. So the wiring is just in and out, no ground at the cluster.
     
  17. 1978GT

    1978GT In Overdrive GOLD MEMBER

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    Handy Andy is right on. The +12V is constant, the ground is switched. There is also a feed from the ignition switch "Start" position which acts as a bulb check.
     
  18. Clark

    Clark In Maximum Overdrive

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    Thanks guys. This makes sense.
     
  19. andrewok1

    andrewok1 In Maximum Overdrive GOLD MEMBER SILVER MEMBER

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    IMG_20221021_123736.jpg
    Clark.
    I sent you the circuit layout
    IMG_20221020_193357.jpg IMG_20221020_193425.jpg
     
    Last edited: Oct 21, 2022
  20. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    I got a surprise this afternoon...my tach decided to not work for a minute when I fired Babe up. I'll have to look at the connections.
     

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