Spirit of 76
Gottlieb, 1975Working on a Gottlieb Spirit of 76. Only issue left is player 1 won't award a credit/replay when you meet/exceed the replay card scores. Replay on players 2, 3 & 4 all work perfectly. I've been thru the thousands and ten thousands score reels with a fine tooth comb. All copper plates have been cleaned, all contacts are shiny clean and been confirmed with a meter. No broken wires, no bad solder joints, on add switches working correctly.
What am I missing?
Quoted from jojo97222:What am I missing?
Here's the circuit to award a replay for player 1 scoring 23,000. Notice the disk and wiper on the Player unit, and also the P1E switch.
pasted_image (resized).pngpasted_image (resized).pngOn this era of gottlieb score reels, the wiping disc had a problem with the jumper solder connections cracking. Reflowing these connections should be part of the inspection and cleaning of the wiping disc.
Thanks, P1E tested good with my meter but I jumped it out to be sure. Also reflowed both thousand and ten thousand score reel plates where the wiresattach but still nothing. Am I correct that the issue is definitely in the head vs down below?
Success!!! When I reflowed the connections on the score wheel, I only did the outside but went back after rereading the ideas mentioned and saw the "C" solder connection completely broken. Thank you guys!!
its the common to the corner of the printed cir board on the reels, usually connected to a bare wire to take the feed in from the corner in about an inch bypassing the traces. sometimes the wire to the board is soldered directly to this wire. its the common to the circuit as shown above
This was a good thread as I had exactly the same issue, Player 1 would not record a free game award, but players 2-4 would. To help others, I took a few pictures of the unit that where the failure was. I did not picture the re-flowed solder connection. Note that the failed solder joint was not visually super obvious, but a slight tug on the wire revealed that the wire would rotate in the hole in the PCB. Not how the Engineers planned the solder joint to work! Note on my game, Player 1 1000's unit was the problem. It could be either the 1000's or the 10,000's.
1_Gottlieb_Decagon_Count_Thousands_Unit (resized).jpg2_Gottlieb_Decagon_Count_Common (resized).jpg3_Gottlieb_Decagon_Count_Common_Solder_Fail1 (resized).jpg4_Gottlieb_Decagon_Count_Common_Solder_Fail2 (resized).jpgWanna join the discussion? Please sign in to reply to this topic.
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Eustis, FL
Linton