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Pioneer SX 626 Lighting Issue

linty fern

linty fern

New Member
Hello,

I'm having an issue with my Pioneer SX 626 lamps. A couple lights were burned out, so I opened it up to replace them, which isn't the trickiest. I replaced all 5 with new LEDs, as well as the tuner light, with no problems. I put everything back together, picked it up, and moved it about 15 feet to attach my turntable and speakers. I plugged it in and turned it on one more time to make sure everything was good to go, but none of the lights turned on. I opened it back up to see if any of the wires connecting the lights were dislodged, and nothing seems out of place. Other than pulling out bulbs and replacing them with new ones, I did no other work on this thing. For good measure, I still connected the turntable and speakers, and everything works without issue, with the exception of the entire lighting system.

Any thoughts on what the heck is going on? Happy to attach pictures if it would be helpful.

Thanks!
 
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See if the fuse is blown. There is one for the lamps. Also check to see if you pinched a wire somewhere causing a short that may have blown the fuse
 
Can you point me to where that fuse is located? I can’t seem to find one for the lamps. A blown fuse would make sense as to why they all suddenly went out at once.
 
What kind of LEDS did you use? What is the voltage of the circuit? Are the lamps in series or parallel? Are the lamps running AC or DC in circuit? May have exceeded FV or RV and blown the lamps without the proper resistor or diode.
 
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There is a 3A fuse fed by a blue wire from the power transformer. Check for shorts before replacing the fuse. Since the lamps are fed with AX, dzkfraser may have identified a problem in that the peak voltage may have exceeded the capacity of the LEDs.
 
The 3A fuse was indeed blown. Soldered in a new one and this old girl is good as new. Thanks for all your help!
 
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