Luxman PD 131S Turntable - Strobe light -HELP

[jimmyringo123]

Hi all,
I have a Luxman PD131S TT and the strobe light is not working.

The only service manual I can find is this:
https://www.vintageshifi.com/repertoire-pdf/pdf/telecharge.php?pdf=Luxman-PD-131-Service-Manual.pdf
which only refers to the 121 and 131.

I thought there would be enough similarities between the 131 and 131S, however if you look at my photos of the strobe PCB below, the numbering of components is different.

Can anyone help to identify which capacitor I should look at replacing in this circuit? So far, I have removed the C402 which is a 330uF, the smaller cap close to the fuses is a 2.2uF. The fuse F401 (100mA) was blown as well, which, after reading another repair forum on the PD121, led me to suspect a capacitor. I don't have a circuit diagram to work it out.

Attached are pictures of my board with caps, fuse and strobe encircled as well as a screen shot of the PD121/131 circuit (which is not a direct match to my board).

Thanks!

 

[VaNarn]

There is a solution for replacing the UV light on the Vinyl Engine forum.
Luxman pd 121 Replacement black light stroboscope- Vinyl Engine

 

[jimmyringo123]

Thanks @VaNarn
I have seen that also, but rather than replacing the light, I wan't to try to fix the circuit. Hoping someone has encountered this.

 

[nigelwright7557]

electrolytic caps tend to age first.
Check them with a multi meter for a short or low impedance.

 

[jimmyringo123]

Thanks, I just measured both electrolytics:

The small 2.2uF measures 3.2uF
The big 330uF bipolar measures less than a nF...

So, the larger of the 2 capacitors looks like a problem

I made the measurements just using my multimeter in capacitance mode with the caps out of circuit.

Thanks Jim

 

[jimmyringo123]

These pictures did not come through on my first post: