Fire on board, leave the Enterprise!!!
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Fire on board, leave the Enterprise!!!  This thread currently has 235 views. Print
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AMX
May 30, 2009, 10:49am Report to Moderator

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The Enterprise is on fire!!!

Hehe, funny hein?!

I bought the ST25th from Terry (b1buwg97). The game had the light rope issue so I tested the rope itself and all the lights are ok so I installed a new ULN2003. I started a game and all worked well untill (maybe 2-3 minutes) I heard a little crispy sound comming from the speaker and I say a big F#@*#@# smoke coming from the head of the game!!!!   Cap'tain, what the hell is happen here?!?!?

The new ULN2003 started to burn!!!  Poouuach, this thing stink!!!  

Anybody can tell me what can did that???
The old ULN2003 was physically in great shape, just don't work... Why the new one burned like that???




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Gone: A loooooooootttttttt!!
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Monkeybug
May 30, 2009, 11:06am Report to Moderator

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I would guess something further up the circuit is causing this.

And I assume it was put in correct?  I once put a sound rom in backwords and fried an unrelated transitor.
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AMX
May 30, 2009, 11:16am Report to Moderator

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Quoted from Monkeybug
I would guess something further up the circuit is causing this. If so, why the old one did not fried?

And I assume it was put in correct? Yes, it was.  I once put a sound rom in backwords and fried an unrelated transitor.


Jukes: Seeburg 222, HF100R, AY160, DS160, Rock-Ola 1458.
Puck bowler: CC Varsity, United Sure Fire and Line Up.
Vids: Spy Hunter, Striker 1945, Arkanoid, Arkanoid Revenge Of Doh, Tournament Arkanoid, 60 in 1, 1942, 1943, Aero Fighters.
Pins: Gottlieb S&S, Magic City, Skill Pool, Dealer's Choice, Night Rider (em), Pinbot, AFM, CFTBL, Galaxy, Space Station, Time Machine, OXO, Cueball Wizard, Lady Luck, King Pin (63), Funfest, Spirit Of 76, Supersonic (Zaccaria), 4MBC, TouchDown, Criss Cross, Memory Lane, Strato Flite, Seven Up, Tic Tac Toe, TFTC, Torpedo Alley, Doctor Who, Pat Hand.

Gone: A loooooooootttttttt!!
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tinyrodent
May 30, 2009, 11:47am Report to Moderator

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It's possible the old chip failed for the same reason but with less drama. I would measure the voltage of each pin on the cables which connect to this board.


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necro_nemesis
May 30, 2009, 11:47am Report to Moderator

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Scotty would have that up in running in no time.

Physical evidence looks like it burned on the output side on pin 12 or 13. I would say you have a short on that output.

The other one may have done the same thing... just less dramatic.



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ALJO
May 30, 2009, 11:53am Report to Moderator

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Quoted from necro_nemesis
Scotty would have that up in running in no time.




Too bad he's dead now.




                                                                       
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Bish
May 30, 2009, 12:08pm Report to Moderator

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Quoted from ALJO




Too bad he's dead now.


The funny thing is that I bought that machine the day before he died.




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** Getting Out ** All that's left:  (Vids) Bubbles**MAKE AN OFFER!**
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AMX
May 30, 2009, 12:24pm Report to Moderator

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Quoted from necro_nemesis


Physical evidence looks like it burned on the output side on pin 12 or 13. I would say you have a short on that output.



Yep, you're right, the light rope plug on this output but all tested good?! Mistere et boulle de gomme!!
I ordered some others ULN2003 and when I will receive them I will retest the board with the rope plug unpluged to see what will happen. Maybe something wrong in the rope?! And if so, why they tested good??


Jukes: Seeburg 222, HF100R, AY160, DS160, Rock-Ola 1458.
Puck bowler: CC Varsity, United Sure Fire and Line Up.
Vids: Spy Hunter, Striker 1945, Arkanoid, Arkanoid Revenge Of Doh, Tournament Arkanoid, 60 in 1, 1942, 1943, Aero Fighters.
Pins: Gottlieb S&S, Magic City, Skill Pool, Dealer's Choice, Night Rider (em), Pinbot, AFM, CFTBL, Galaxy, Space Station, Time Machine, OXO, Cueball Wizard, Lady Luck, King Pin (63), Funfest, Spirit Of 76, Supersonic (Zaccaria), 4MBC, TouchDown, Criss Cross, Memory Lane, Strato Flite, Seven Up, Tic Tac Toe, TFTC, Torpedo Alley, Doctor Who, Pat Hand.

Gone: A loooooooootttttttt!!
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AMX
May 30, 2009, 12:26pm Report to Moderator

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Quoted from Bish


The funny thing is that I bought that machine the day before he died.



Malediction?!


Jukes: Seeburg 222, HF100R, AY160, DS160, Rock-Ola 1458.
Puck bowler: CC Varsity, United Sure Fire and Line Up.
Vids: Spy Hunter, Striker 1945, Arkanoid, Arkanoid Revenge Of Doh, Tournament Arkanoid, 60 in 1, 1942, 1943, Aero Fighters.
Pins: Gottlieb S&S, Magic City, Skill Pool, Dealer's Choice, Night Rider (em), Pinbot, AFM, CFTBL, Galaxy, Space Station, Time Machine, OXO, Cueball Wizard, Lady Luck, King Pin (63), Funfest, Spirit Of 76, Supersonic (Zaccaria), 4MBC, TouchDown, Criss Cross, Memory Lane, Strato Flite, Seven Up, Tic Tac Toe, TFTC, Torpedo Alley, Doctor Who, Pat Hand.

Gone: A loooooooootttttttt!!
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ALJO
May 30, 2009, 12:38pm Report to Moderator

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Quoted from Bish


The funny thing is that I bought that machine the day before he died.



He must of heard that the game was now in good hands...And he could now leave in peace.




                                                                       
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HAL-9OOO
May 30, 2009, 1:47pm Report to Moderator

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Warp speed is very risky !!  
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necro_nemesis
May 30, 2009, 4:58pm Report to Moderator

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You could measure the current the circuit is drawing. If your exceeding 500mA that's your problem. I don't know quite what these lights are like but if they are in parallel all it would take is one bad bulb in the string to short when it warms up.

Each channel is rated to 500mA continuous and 600mA peak.



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