EM Chicago coin Sound stage help - cross connected the plugs fried the

By MalikyeMoon

6 years ago

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3 posts
2 Pinsiders participating
Latest reply 6 years ago by MalikyeMoon
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Sound Stage Chicago Coin, 1976

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#1 6 years ago

MPM

EM Chicago coin Sound stage help - cross connected the two like-size molex plugs from the body to the head (see pic), and left it on for 10 min while distracted by a friend. Came back noticed it stillhad a power hum. Unplugged, corrected the connections, tried to power on, wont power on. Checked the fuse board underneath. It totally fried the 15A 30V fuse (see pic). Replaced it, and now wont power on. Need to start testing the fuse holders, etc., but given the mistake did I just fry the transformer or something awful? Was fully working before moving it ug

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#2 6 years ago

rolf_martin_062

Inactive member

Aarau

9y 59,550 4,150 14 8

Hi MLM
I do not have the pin --- I look at the schematics, there is an 10 Amp fuse in the 110 VAC-wiring (bottom of my JPG) --- blown in Your pin ?
When You simply toggle-on the main power switch and THEN manually make the Score-Motor run --- grab the turntable on the motor and turn it a bit --- the "Self-Hold-Switch of the Score-Motor" should close-in (encircled green in the JPG) and make the Score-Motor do a turn of 120 degrees (the turntable) --- in Your pin ? Greetings Rolf

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#3 6 years ago

MPM

MalikyeMoon

Pinside+ Frequent

9y 48,550 197 1

Hi Rolf,

Thanks for the input! I fiddled some more last night and was thankfully able to power on. Appears to be a combo of a weak fuse holder for the one i fried, and a bad molex connection for backbox GI as part 2. Game is thankfully working again, altho i noted it went from a 5 ball game to a 3 ball after replacing fuses etc.

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