Photo: robin
  1. » Forum
  2. » Tech
  3. » Tech: Generic
  4. » Tech help: System 11 coil locks on (High Speed) not usual suspects
(Topic ID: 237514)

Tech help: System 11 coil locks on (High Speed) not usual suspects

By shacklersrevenge

5 years ago



Topic Stats

You

Linked Games

No games have been linked to this topic.

    Topic Gallery

    View topic image gallery

    8CF66BF1-DDFF-4D21-9247-670DBF708E35 (resized).jpeg

    You're currently viewing posts by Pinsider shacklersrevenge.
    Click here to go back to viewing the entire thread.

    0
    0
    0
    #1 5 years ago
    OP
     
    JCC

    shacklersrevenge

    Cape Cod Beyond- Rentals

    US Gardner, MA

    13y 147K 6,257 21 16 3

    The coil for the right hideout is locking on and blowing the fuse.

    Coil is good, I jumped the wires to the opposite side, same result- locks on.

    The relay for the right side energizes at power on (not sure if this is correct or not)

    Tip 122 replaced with tip 102 at q22 and tests good.
    All predrivers are okay.

    Removed j18 and it still blows the fuse, indicating it’s on the board.(fuse holder pictured below)

    Lastly, with connector j11 disconnected, fuse will not blow.

    Anyone have any ideas?

    Thanks, James
    8CF66BF1-DDFF-4D21-9247-670DBF708E35 (resized).jpeg8CF66BF1-DDFF-4D21-9247-670DBF708E35 (resized).jpeg

    0
    1
    1
    #3 5 years ago
    OP
     
    JCC

    shacklersrevenge

    Cape Cod Beyond- Rentals

    US Gardner, MA

    13y 147K 6,257 21 16 3

    Quoted from Inkochnito:

    J18 is for the special solenoid, which this isn't.
    Did you also replace the pre-driver Q18? (2N4401)
    If yes, check U19. (7408)

    Yep, U19 was the problem child. All is well now
    Thanks!

    You're currently viewing posts by Pinsider shacklersrevenge.
    Click here to go back to viewing the entire thread.

    Reply

    Wanna join the discussion? Please sign in to reply to this topic.

    Hey there! Welcome to Pinside!

    Donate to Pinside

    Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!

    This page was printed from https://pinside.com/pinball/forum/topic/tech-help-system-11-cool-locks-on-high-speed-not-usual-suspects-?tu=shacklersrevenge and we tried optimising it for printing. Some page elements may have been deliberately hidden.

    Scan the QR code on the left to jump to the URL this document was printed from.