Zman6 Well-known member Donor 2014-2015 VAPS Joined Jul 24, 2014 Messages 1,407 Reaction score 495 Nov 1, 2025 #1 Is this opto placement correct? Replacing and Not sure which should be S side and which is E side. Attachments IMG_2648.jpeg 613.1 KB · Views: 25
OP OP Zman6 Well-known member Donor 2014-2015 VAPS Joined Jul 24, 2014 Messages 1,407 Reaction score 495 Nov 3, 2025 #2 Anyone know?
tron guy Super Moderator Staff member Donor 12 years: 2011, 2015-2025 VAPS Joined Jun 26, 2007 Messages 23,145 Reaction score 2,594 Location Eureka, California Nov 3, 2025 #3 I should have an extra opto pcb lying around. I will try to check tonight .
OP OP Zman6 Well-known member Donor 2014-2015 VAPS Joined Jul 24, 2014 Messages 1,407 Reaction score 495 Nov 3, 2025 #4 tron guy said: I should have an extra opto pcb lying around. I will try to check tonight . Click to expand... Much appreciated, no huge rush. I just want to make sure I get it on there the right the first time because the traces are in such bad shape I'm gonna have to jumper several of the legs of the opto out to other points.
tron guy said: I should have an extra opto pcb lying around. I will try to check tonight . Click to expand... Much appreciated, no huge rush. I just want to make sure I get it on there the right the first time because the traces are in such bad shape I'm gonna have to jumper several of the legs of the opto out to other points.
Vectordreams Active member Donor 6 years: 2020-2025 VAPS Joined Jan 22, 2017 Messages 411 Reaction score 208 Location Colorado Springs, Colorado Nov 3, 2025 #5 The opto should have a dot to match where the board has the 1.
HudsonArcade Well-known member VAPS Joined Aug 12, 2009 Messages 14,720 Reaction score 3,621 Location 01749, Massachusetts Nov 3, 2025 #6 E = emitter S = sensor The E side should just have a resistor to +5V.
z0ner Well-known member Donor 3 years: 2015, 2017-2018 VAPS Joined Aug 18, 2015 Messages 3,317 Reaction score 2,023 Location Orange, California Nov 3, 2025 #7 That looks correct. Looking at the schematic +5 runs through R106 which goes to pins 1&2 of the opto, aka the LED side, or [E]mitter.
That looks correct. Looking at the schematic +5 runs through R106 which goes to pins 1&2 of the opto, aka the LED side, or [E]mitter.