Star Trek TNG plays blind and mute.

(Topic ID: 187200)

Star Trek TNG plays blind and mute.


By DTAC

1 year ago



Topic Stats

  • 25 posts
  • 7 Pinsiders participating
  • Latest reply 1 year ago by Schwaggs
  • No one calls this topic a favorite

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There have been 14 images uploaded to this topic. (View topic image gallery).

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#1 1 year ago

so i've been testing and buying new parts and nothing.
the MPU has been tested in a working cabinet....good
all new ribbon cables.
new fliptronics
new display driver
new driver board
new burned rom
still no sound and display.
playfield lights up and looks like its playing
led on MPU are correct.

where to go from here?
whats the least i can connect to the boards to test the sound or display?

#2 1 year ago

i'll pay anyone who can help me with this...
i have no idea what could be causing this.

#3 1 year ago

Obviously somethings not right, Please post a picture of the inside of the backbox with the machine turned on.

#4 1 year ago

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#5 1 year ago

Middle LED on MPU constantly blinking and bottom staying on consistently? Has the game ever booted right with sound and display since you've had, or been this way since you've owned? What Rev is the newly burned game ROM and what Rev are the sound ROMS.

#6 1 year ago

The one thing I see is that your connection on J118 looks really odd, I do realize its been hacked but with a 3 pin connector hanging off the side, I don't believe the connector is mated with the two center pins on the header. If this is true, the +12V on the pin to the right of the key is connected to a ground wire, this should have blown your 12V fuse on your power board. I don't see a connection anywhere for a color DMD, but if you have one, you will have no display and be unable to see the message saying to check your 12V fuse.

oops (resized).jpg

#7 1 year ago
Quoted from The_Director:

Middle LED on MPU constantly blinking and bottom staying on consistently? Has the game ever booted right with sound and display since you've had, or been this way since you've owned? What Rev is the newly burned game ROM and what Rev are the sound ROMS.

yes, the middle led is blinking.
this worked with the display and sound until i a loose wire under the playfield touched a live lug on a solenoid, then no sound and display. this was before all the new parts.

#8 1 year ago
Quoted from Pin_Guy:

The one thing I see is that your connection on J118 looks really odd, I do realize its been hacked but with a 3 pin connector hanging off the side, I don't believe the connector is mated with the two center pins on the header. If this is true, the +12V on the pin to the right of the key is connected to a ground wire, this should have blown your 12V fuse on your power board. I don't see a connection anywhere for a color DMD, but if you have one, you will have no display and be unable to see the message saying to check your 12V fuse.

You have incredible attention to detail! Well done!

#9 1 year ago

and this one:
conn 124.jpg

Capacitor and flashers don't like this

#10 1 year ago
Quoted from zaza:

and this one:

Capacitor and flashers don't like this

someone is gunning for the reward!

#11 1 year ago
Quoted from Pin_Guy:

The one thing I see is that your connection on J118 looks really odd, I do realize its been hacked but with a 3 pin connector hanging off the side, I don't believe the connector is mated with the two center pins on the header. If this is true, the +12V on the pin to the right of the key is connected to a ground wire, this should have blown your 12V fuse on your power board. I don't see a connection anywhere for a color DMD, but if you have one, you will have no display and be unable to see the message saying to check your 12V fuse.

fixed this and found a bad fuse and replaced but still the same.

#12 1 year ago
Quoted from zaza:

and this one:

Capacitor and flashers don't like this

fixed this. still no go.

#13 1 year ago

The red line on ribboncable from CPU J204 to 8-DRV J1 are both on pin26 ,that should work ok but I would swap them both to pin 1.
Can you check the ribbon-cable on the display, is red line on pin 1 ?

#14 1 year ago

In Soviet Russia deaf, dumb, and blind game plays YOU!

#15 1 year ago
Quoted from zaza:

The red line on ribboncable from CPU J204 to 8-DRV J1 are both on pin26 ,that should work ok but I would swap them both to pin 1.
Can you check the ribbon-cable on the display, is red line on pin 1 ?

ribbon on display are both on red on #1 and i switched the other one so they are both on red...no go.

#16 1 year ago

what is the bare minimum i need plugged in to test the display?

#17 1 year ago
Quoted from DTAC:

bare minimum i need plugged in to test the display?

Everything, but disconnect fliptronic-board, sound-board (at least the ribbon cables from both boards)
J102 unplugged from PowerDriver to work safer.

Then check voltages on DMD-controller:
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Testing_DMD_Controller_Power

#18 1 year ago
Quoted from DTAC:

this worked with the display and sound until i a loose wire under the playfield touched a live lug on a solenoid

You wouldn't happen to know which wire this was, would you? Could be good information to have.

Quoted from DTAC:

fixed this and found a bad fuse and replaced but still the same.

Is the fuse you replaced still good?

#19 1 year ago
Quoted from Pin_Guy:

You wouldn't happen to know which wire this was, would you? Could be good information to have.

Is the fuse you replaced still good?

it was one of the optical sensors for the trough and yes the fuse is still good.

#20 1 year ago
Quoted from zaza:

Everything, but disconnect fliptronic-board, sound-board (at least the ribbon cables from both boards)
J102 unplugged from PowerDriver to work safer.
Then check voltages on DMD-controller:
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Testing_DMD_Controller_Power

dmd is rottendog and all the test points are good.

#21 1 year ago

Ribbon cable from CPU to Aux board is twisted.

Red tracer should be up on J204 CPU board side (this is correct in the pictures) and to the left on the Aux board (in the pictures it is to the right).

#22 1 year ago
Quoted from Schwaggs:

Ribbon cable from CPU to Aux board is twisted.
Red tracer should be up on J204 CPU board side (this is correct in the pictures) and to the left on the Aux board (in the pictures it is to the right).

Good catch, but since its twisted on both sides it will work fine like that

#23 1 year ago
Quoted from Pin_Guy:

Good catch, but since its twisted on both sides it will work fine like that

Thats not what I see, I see the cable twisted only on one end.

Pin 1 is at the top of the CPU board connector which is where the red tracer is on the ribbon cable (correct).

Pin 1 is on the left of the aux board connector and the red tracer is on the right (backwards). OP - try swapping the orientation of the ribbon cable connector on the aux board end of the ribbon cable.

#24 1 year ago
Quoted from Schwaggs:

Pin 1 is at the top of the CPU board connector which is where the red tracer is on the ribbon cable (correct).

Ah, I see where the confusion is; pin one is actually on the bottom side of the CPU connector, not the top.

IMG_1705 (resized).JPG

#25 1 year ago
Quoted from Pin_Guy:

Ah, I see where the confusion is; pin one is actually on the bottom side of the CPU connector, not the top.

Thanks for the picture.... yet another error in the manual. The manual shows pin 1 at the top.

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