(Topic ID: 309972)

Name that resistor!

By TopMoose

2 years ago



Topic Stats

  • 7 posts
  • 5 Pinsiders participating
  • Latest reply 2 years ago by TopMoose
  • No one calls this topic a favorite

You

Linked Games

Topic Gallery

View topic image gallery

Spectrum_Playfield.png
22023DF2-002F-4D0B-9EEE-419B97D39B43 (resized).jpeg
A7F66B78-D925-4D62-AA90-72C6D2918B67 (resized).jpeg
#1 2 years ago

Looking into why one of the drop target banks on my Spectrum isn’t behaving correctly, I discovered that a resistor is missing. It looks like it’s black-orange-black-orange. Can someone tell me the specs (resistance, ohms, watts) so I can order correctly? Thanks!

22023DF2-002F-4D0B-9EEE-419B97D39B43 (resized).jpeg22023DF2-002F-4D0B-9EEE-419B97D39B43 (resized).jpeg
A7F66B78-D925-4D62-AA90-72C6D2918B67 (resized).jpegA7F66B78-D925-4D62-AA90-72C6D2918B67 (resized).jpeg

#2 2 years ago

That’s a diode. Check the schematic. Power flows through the diode to one blade on the leaf switch and then when the switch is closed out through the other blade. Without it, there’s no electricity at the switch.

#3 2 years ago

Not a resistor they're diodes. 1n4148 or 1n4004 will work.

#5 2 years ago

Sorry - I meant diode.
The manual doesn’t have a complete parts breakdown like in modern games. I’ll try #slochar ‘s suggestions. Thanks, all!

#6 2 years ago

It's listed at the bottom of the playfield schematic.

Spectrum_Playfield.pngSpectrum_Playfield.png

#7 2 years ago

Got my shipment from Marco today and installed the new diode (plus a flipper rebuild kit). It now plays like a dream! Thanks again, everyone!

Promoted items from Pinside Marketplace and Pinside Shops!
$ 7.50
Cabinet - Decals
J and D Arcade
 
$ 18.00
Electronics
Yorktown Arcade Supply
 
$ 5,695.00
Pinball Machine
Pinball Alley
 
$ 859.00
Flipper Parts
Mircoplayfields
 
$ 33.95
Eproms
Pinballrom
 
From: $ 2.99
$ 18.95
Eproms
Pinballrom
 

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/name-that-resistor 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.