CanyonBomber Posted March 25, 2019 Share Posted March 25, 2019 I just got in a Pong C-202 console that will need some work. On the board parts J1 is missing and R21 is, well I am posting pictures so you will see. R21 I need to know what the value of the resistor is. If anyone has the schematics or a photo of a working one that would be great. Quote Link to comment Share on other sites More sharing options...
Voxel Posted January 12, 2020 Share Posted January 12, 2020 I've attached some images for your reference. I used an ancient camera phone, with a tiny screen and with my old eyes, produced...hit and miss focus. FIG-1 This shows the missing jack (J1) from your unit, as well as the resistor R21. FIG-2 This shows a close up of the resistor R21, which may aid you to colour reference R21 for a value. I've got spots of rust on mine however my cheap multimeter showed a common reading of around 5 ohms. FIG-3 This shows J1, with a replacement 3.5mm jack socket, (3 pin chasis mounted mono socket). No I have not yet confirmed the pins connections, but they are made to a spec. J1 is in the middle, on the left is an outline to give representation. The actual replacement socket is on the right of J1, however it was placed forward to show mounting height (flush) in relation to the board (and so looks bigger). This shows the replacement mounts lower on the board. FIG-4 I've placed the replacement socket to the right, this shows the pin length/height, which we shall get to...(in FIG-6) FIG-5 The underside. This shows the pin spacing of the replacement socket (shown side view) corresponding to J1, which can be bent accordingly to align with the circuit holes to match the original. FIG-6 This shows the height adjustment required for the replacement to match the opening in the casing (raised between 1-3mm), or you could file the opening to match. Vero board can be used (as padding) to increase the replacement sockets' height on the board. The holes on the vero board would need a little enlargement. The vero board would also need to be trimmed/filed to size. You could just solder to the required height and hot melt glue to support the replacement socket. You may prefer a different solution of your choice, mine are just serving suggestions. I may have a spare 4.9 ohm resistor, though I can certainly send you a few sockets. You could PM me your delivery address, but please be patient I'm in the UK and would not post out for a couple of weeks and then the slow postal service... Caveat: all the above is based on my Super Pong Pro-Am Ten Quote Link to comment Share on other sites More sharing options...
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