Photo: pinballphotos

(Topic ID: 284406)

Stern POTC no right flipper hold

By chuckwurt

3 years ago

Topic Heartbeat

Topic Stats

25 posts
8 Pinsiders participating
Latest reply 3 years ago by Schwaggs
No one calls this topic a favorite

You

You are not signed in!

Find in topic

Linked Games

Pirates of the Caribbean Stern, 2006

Topic Gallery

View topic image gallery

B6037755-8957-4CC3-9EE8-0ACB71638B73 (resized).jpeg

AF0B7632-F541-48DE-85E3-46B1F25EDC61 (resized).jpeg

38899CA5-8520-433C-8A53-DCC1D95A5D7B (resized).jpeg

Driver Board diagram.jpg.pdf (PDF preview)

#1 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

So I rebuilt the right flipper (new coil, stop, eos, spring, etc)

Replaced the cabinet switch after this issued occurred with no help.

I cannot remember if this issue was there before the rebuild (only played a few games)

I have no hold on the right flipper. It dies when you push it down or a fast ball hits it.

The eos and coil are wired up correctly and match the left flipper.

The eos opens plenty when the flipper engages and registers properly in test.

Are their transistors that associate with the hold power only?

Thanks!

#2 3 years ago

ZAM

Pinballomatic

Jersey Jack Pinball

Kermit, WV

7y 74,150 2,183 37

OP
Quoted from chuckwurt:
So I rebuilt the right flipper (new coil, stop, eos, spring, etc)
Replaced the cabinet switch after this issued occurred with no help.
I cannot remember if this issue was there before the rebuild (only played a few games)
I have no hold on the right flipper. It dies when you push it down or a fast ball hits it.
The eos and coil are wired up correctly and match the left flipper.
The eos opens plenty when the flipper engages and registers properly in test.
Are their transistors that associate with the hold power only?
Thanks!

Yes there is a hold transistor. Also check the thin wires coming out of the coil to the lugs - they can break or get screwed up without you noticing. Continuity check the wire at the hold lug on the coil back to the board plug.

#3 3 years ago

LTG

Pinside member

Hopkins, MN

12y 191K 56,991 24 7

Quoted from Pinballomatic:
Continuity check the wire at the hold lug

No hold lug. Only two wires on a Stern POTC.

Since he replace the cabinet switch and EOS, it's pointing towards a board issue,

LTG : )

#4 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Thanks folks. I’ll test the hold transistor next. Thanks and Merry Christmas!

#5 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

here is the driver board diagram. I only see one transistor for each flipper coil?

Driver Board diagram.jpg.pdf

#6 3 years ago

LTG

Pinside member

Hopkins, MN

12y 191K 56,991 24 7

OP
Quoted from chuckwurt:
I only see one transistor for each flipper coil?

The left one works ? Then please swap left and right flipper button leaf blade switches. I suspect something funky with the right leaf blade switch, even if new.

LTG : )

#7 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Quoted from LTG:
The left one works ? Then please swap left and right flipper button leaf blade switches. I suspect something funky with the right leaf blade switch, even if new.
LTG : )

So the game doesn’t have two transistors one for the low power and one for the high power?

#8 3 years ago

???

jalpert

Pinside member

Unknown

14y 70,050 7,517

To hold, Sterns pulse high power.

OP
Quoted from chuckwurt:
So the game doesn’t have two transistors one for the low power and one for the high power?

#9 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

K thanks. Man this is a pickle. What controls the pulse?

#10 3 years ago

JON

Schwaggs

Gameroom Mods

10y 105K 4,760 10

OP
Quoted from chuckwurt:
K thanks. Man this is a pickle. What controls the pulse?

CPU controls the pulse and that is working (or the coil would burn up when held).

The thing you should focus on is the end of stroke switch. Enter switch test in diagnostics. Ensure the EOS reads closed when at rest and open at full stroke. If it is not registering open at full stroke (always closed) the CPU can't know when the bat was pushed back (since the EOS is always closed) and engage full power again.

#11 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Quoted from Schwaggs:
CPU controls the pulse and that is working (or the coil would burn up when held).
The thing you should focus on is the end of stroke switch. Enter switch test in diagnostics. Ensure the EOS reads closed when at rest and open at full stroke. If it is not registering open at full stroke (always closed) the CPU can't know when the bat was pushed back (since the EOS is always closed) and engage full power again.

Video of switch test. All seems good to me.

Pics of each mech.

38899CA5-8520-433C-8A53-DCC1D95A5D7B (resized).jpeg

AF0B7632-F541-48DE-85E3-46B1F25EDC61 (resized).jpeg

B6037755-8957-4CC3-9EE8-0ACB71638B73 (resized).jpeg

#12 3 years ago

CKR

Classe

Pinside apprentice

Göteborg

3y 24,650 98 16

It looks like the EOS opens too much.
The EOS shall only just open just when the plunger hits its end of stroke.

#13 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Quoted from Classe:
It looks like the EOS opens too much.
The EOS shall only just open just when the plunger hits its end of stroke.

Are you sure that matters on a SAM system game?

#14 3 years ago

CKR

Classe

Pinside apprentice

Göteborg

3y 24,650 98 16

Pretty sure, when a ball hits the flipper bat, it will go down to faar before you get full power to the flipper.

#15 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Okay I’ll try and tighten the gap

#16 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Quoted from Classe:
Pretty sure, when a ball hits the flipper bat, it will go down to faar before you get full power to the flipper.

Adjusting the eos doesn’t change the behavior.

#17 3 years ago

BLY

MrBally

Pinside member

Paradise, NV

12y 141K 13,936 22 1

Remove an identical, unused transistor, such as U14 and replace U16 to rule out or verify if the driver transistor is defective.

#18 3 years ago

BOB

bobukcat

Pinside member

9y 99,550 5,463

OP
Quoted from chuckwurt:
Adjusting the eos doesn’t change the behavior.

I suspect a weak driver transistor. You could use a logic probe to be sure you are getting the long pulse from the cpu when the EOS closes, just be sure to only probe the low voltage control / base / gate side of the circuit.

#19 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

So I guess it is possible for the transistor to work halfway and only give me the full power and not the hold?

I’ll swap in one of the unused transistors when I get some free time. Thanks gents and merry Christmas!!

#20 3 years ago

BLY

MrBally

Pinside member

Paradise, NV

12y 141K 13,936 22 1

OP
Quoted from chuckwurt:
So I guess it is possible for the transistor to work halfway and only give me the full power and not the hold?
I’ll swap in one of the unused transistors when I get some free time. Thanks gents and merry Christmas!!

Yes, Field Effect Transistors can fail in such a manner.

#21 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Quoted from MrBally:
Yes, Field Effect Transistors can fail in such a manner.

Awesome. Thanks for the help.

#22 3 years ago

???

jalpert

Pinside member

Unknown

14y 70,050 7,517

Is the plunger making good contact with the end stop?

#23 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Quoted from jalpert:
Is the plunger making good contact with the end stop?

Yes.

#24 3 years ago

ERW

chuckwurt

Pincinnati

10y 193K 31,356 16 13

Q16 was the issue! Replaced that and it’s all good. Thanks everyone!

#25 3 years ago

JON

Schwaggs

Gameroom Mods

10y 105K 4,760 10

Awesome! Thanks for posting the resolution!

Promoted items from Pinside Marketplace and Pinside Shops!

$ 54.00

Playfield - Toys/Add-ons

Illuminated Gold Treasure chest

Lermods

$ 16.50

Lighting - Led

Trough LED Strip Lighting, universal

Lermods

€ 18.00

Playfield - Decals

Target Decals POTC Stern

Pin-Decals

$ 28.75

Playfield - Toys/Add-ons

JJP Pirates of the Caribbean custom wood and Gold flippers

The MOD Couple

€ 20.00

Cabinet - Decals

Skull decals POTC stern

Pin-Decals

From: $ 99.99

Cabinet - Other

Pirates of the Caribbean Lighted Magnetic Hinge Cover-Yellow

Lighted Pinball Mods

Wanted

Machine - Wanted

Wanted: Pirates of the Caribbean

Yucaipa, CA

1980Galaxy

$ 30.00

Cabinet - Other

3D Coin Reject Buttons: Pirates of the Caribbean (Stern/JJP)

Rocket City Pinball

From: $ 40.00

Lighting - Interactive

Pinduino WPC (V0.3)

Professor Pinball

From: $ 44.95

Playfield - Toys/Add-ons

3D Flipper Caps Mod for Pirates of the Caribbean

PinBoss Mods

Wanted

Machine - Wanted

Wanted: Pirates of the Caribbean - Stern

Grand Rapids, MI

smileymatthew

6,000 (Firm)

Machine - For Sale

Pirates of the Caribbean

Birmingham, AL

Bhampinwiz

From: $ 5.00

Cabinet - Other

Jolly Roger Coin Door Reject Button Replacements

Filament Printing

$ 130.00

Gameroom - Decorations

Pirates of the Caribbean Banner 36 x 72

Dijohn

$ 218.00

Lighting - Backbox

Pirates of the Caribbean Pinball LED Strip Backbox Light Kit

Lermods

$ 54.99

Cabinet - Shooter Rods

PURPLE Lighted Shooter Rod Plate Cover Stern Sam/Whitestar

Lighted Pinball Mods

$ 99.99

Lighting - Other

Priates Of The Caribbean Stern Glowing Instruction Cards

Lighted Pinball Mods

$ 18.00

Playfield - Protection

ShooterShield - TPU - Stern - SAM/SPIKE

Volcano Pinball

$ 110.00

Cabinet - Shooter Rods

Aztec Gold Custom Pinball Shooter rod

Super Skill Shot Shop

From: $ 30.00

Cabinet - Other

3D Start Button -- Pirates of the Caribbean (Stern or JJP)

Rocket City Pinball

6,250 (OBO)

Machine - For Sale

Pirates of the Caribbean

Bethlehem, PA

Deadfootmummytoe

$ 18.95

Playfield - Toys/Add-ons

Walk the Plank! Flipper Bat Topper MODs for POTC & JJP-POTC

ULEKstore

$ 79.99

Cabinet - Armor And Blades

Stern Pirates of the Caribbean PinBlades

PinGraffix Pinside Shop

$ 49.00

Playfield - Toys/Add-ons

Illuminated Skull Mod

Lermods

$ 29.25

Playfield - Toys/Add-ons

JJP Pirates of the Caribbean Dead Men custom sign

The MOD Couple

Hey modders!

Open a free Shop and start selling on Pinside

Your shop name here

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/stern-potc-no-right-flipper-hold 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.