Post by mastertech on Sept 14, 2018 12:22:00 GMT -5
Just put some card board or plastic under the ballast if you lay it on top of another board. I would like to know if that spark gap is flickering. You seem to have all the voltages. Those opto couplers are nothing more the a photo switch. The isolated side can be jumped for testing but before we get into that I would like you to check that spark gap.
Test that R6 resistor on that ballast board also. Those carbon resistors can go open sometimes.
I tested that R6 the other day, was around 5 ohm if i recall right, there is no sparks or anything, its dark now so i turned of the light, noticed nothing. The ballaster is now ready to be fiddeled with while powering everything on.
Post by mastertech on Sept 21, 2018 9:52:54 GMT -5
I am shocked Digikey does not have any. This is a common part. Anyways, Mouser has them. Note that you application uses what is called a "lead bending type" which means you bend the leg for surface mount. That is what you have as the original. Nec was merged with Renesas which is why there are no more NEC. Here is the correct part:
Post by mastertech on Sept 21, 2018 10:55:50 GMT -5
Well that is hard to say. Usually they are just used for high voltage or static discharge but I do not know if it serves another purpose in this application. So you can change it if you wish or wait and see if the opto couplers fix it or not.
Any update on your progress? I am trying to troubleshoot a ballast from a rs45. I think they are similar. My ballast is a rubycon RPB-0526GA. It looks like a few diodes got a little crispy on the back of the board. Will try and take some photos.
Would really like to get it working.Info is scarce. Like to compare it to my g90.
docsss: Hi, HELP ! I really need firmware DSP2 Q3401 for ONKYO TX-NR3007 . [email protected]
Aug 29, 2021 11:47:32 GMT -5
timorenga: Gracias por aceptarme como miembro del foro, Estoy buscando manual de servicio para Denon AVR4310CI si alguien lo tiene se agradecería mucho que lo comparta Gracias
Jul 17, 2021 20:07:03 GMT -5