Vishay/Dale DMD schematic?

Archived from groups: rec.games.pinball (More info?)

Hi,

Just repaired a friends STTNG, that had a blank display and smoke
coming out :) DMD driver board +62V output was at +35V, but after
replacing an open resistor at R11, and transistors Q2, Q3 and Q10
all voltages are OK, and the game works just fine with a spare
display. So far so good.

But the source for the smoke seems to be very crispy Q1 and Q2
on the DMD itself. It is a Vishay/Dale unit. Since the display glass
is still pretty good, replaced in 2001 and HUO, I would like to get
the DMD fixed. But I can't find a schematic for it. Not knowing what
should I replace the burnt Q1 and Q2 with, I am out of luck.

So, if anybody can tell where to find a schematic or even a
parts list for a Vishay/Dale DMD, please help!


--
Tuukka
http://flipperit.net/tkalliok/
5 answers Last reply
More about vishay dale schematic
  1. Archived from groups: rec.games.pinball (More info?)

    The schematics for Dale and Cherry dot matrix displays were commonly included
    in the WPC Schematic Manual (the addendum to the game manual). The displays
    underwent some design changes over time so you'd need to match the display
    model with the schematic in the manual.

    Joseph "Tony" Dziedzic

    In article <p9a4h15pq0ecs85dcq7s28d2gvo5c1lt82@4ax.com>,
    nospam@nospam.com.invalid wrote:
    >Hi,
    >
    >Just repaired a friends STTNG, that had a blank display and smoke
    >coming out :) DMD driver board +62V output was at +35V, but after
    >replacing an open resistor at R11, and transistors Q2, Q3 and Q10
    >all voltages are OK, and the game works just fine with a spare
    >display. So far so good.
    >
    >But the source for the smoke seems to be very crispy Q1 and Q2
    >on the DMD itself. It is a Vishay/Dale unit. Since the display glass
    >is still pretty good, replaced in 2001 and HUO, I would like to get
    >the DMD fixed. But I can't find a schematic for it. Not knowing what
    >should I replace the burnt Q1 and Q2 with, I am out of luck.
    >
    >So, if anybody can tell where to find a schematic or even a
    >parts list for a Vishay/Dale DMD, please help!
    >
    >
    >
  2. Archived from groups: rec.games.pinball (More info?)

    >So, if anybody can tell where to find a schematic or even a
    >parts list for a Vishay/Dale DMD, please help!

    I was able to get a vishay schematic direct from them after signing a
    statement that I would not use it "against" them.

    I would try them direct for the type of display. Let me know if you
    can't find it.

    Kirb
  3. Archived from groups: rec.games.pinball (More info?)

    Hi Tuukka or John


    If is not so much trouble can You forward the Vishay Dale schematic
    to technical@NOSPAMpinball.ro

    thanks a lot !!!!

    Marius

    www.pinball.ro
  4. Archived from groups: rec.games.pinball (More info?)

    On Sun, 28 Aug 2005 23:57:33 GMT, tonydz@comcast.net (Joseph A. 'Tony' Dziedzic)
    wrote:

    >The schematics for Dale and Cherry dot matrix displays were commonly included
    >in the WPC Schematic Manual (the addendum to the game manual). The displays
    >underwent some design changes over time so you'd need to match the display
    >model with the schematic in the manual.

    My manuals had only Cherry and Babcock schematics, but I received
    a Dale schematic in my mailbox :) Big thanks to John!


    --
    Tuukka
    http://flipperit.net/tkalliok/
  5. Archived from groups: rec.games.pinball (More info?)

    On 29 Aug 2005 09:24:48 -0700, "easternpinman" <mstoean@hotmail.com> wrote:

    >Hi Tuukka or John
    >
    >
    >If is not so much trouble can You forward the Vishay Dale schematic
    > to technical@NOSPAMpinball.ro

    It is in your mailbox :)


    --
    Tuukka
    http://flipperit.net/tkalliok/
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