Philips L3G03T Transistor Radio

[Trannytuner]

Hello All
I am looking for some help to get this radio up and running.
There is a moderate hiss from the loudspeaker, but nothing else, I have given the waveband switches a spray with wd40, but that has not produced anything, I have also tried bridging the electrolytics with others, but that doesn't work, but when I run my finger over the three IF cans to the right of the transistor with the yellow dot, there is a loud crackling, but nothing on the one to the left of the transistor.
Could it be faulty electrolytics again? or a faulty transistor perhaps? Iv'e ran out of ideas with this one, I have uploaded a couple of photos.
Any help would be greatly appreciated, thank you.
Les

[crackle]

Replace C31 50uF the red and black cap with the yellow label and I think it may work. You can use a 47uF 16 volt (or higher) type.
WD40 is not the best stuff to use on switches, it will leave them with a sticky film to attract dirt.
Use a propriety switch cleaner like Servisol Super 10

Mike

[Trannytuner]

Hi Mike
Many thanks for your help, I will certainly try what you suggested, I'll let you know how I get on with it.
Les

[crackle]

After that you could try changing C19 and C12. But replace C31 first, the rest of the electrolytics may reform OK.

Mike

[OldTechFan96]

I had one of these a year or two ago and traced the fault to an open OA70 detector diode. It was silent when switched on and crackled when the switched were pushed.

[Trannytuner]

Philips L3G03T now working very well on both wavebands, the culprit was C31 50uF electrolytic, changed that one and the radio came to life, I also changed C19 100uF on the IF board, and C25 100uF on the amp board, which has got rid of the Plessey types.
I had to use the electrolytics to hand which were radial mounting, so had to extend the wires, not the best looking cosmetically, I will replace them eventually.
I have uploaded a couple of photos.
My sincere thanks to Mike (Crackle) and OldTechFan96 for their help, much appreciated
Wishing everyone a Merry Christmas & Happy New Year
Les

[Trannytuner]

Can anyone please advise what to use, and how to polish the plastic cabinet of the Philips L3G03T radio.
The green cabinet has various scuff marks, and wold look a lot better if it had a polish.
I removed the two circuit boards and speaker and resprayed the front panel, as the finish had faded, I have uploaded a couple of photos, of the radio as it is now, any help would be greatly appreciated.
Les

[music-centre]

Its come up well, I would just use some Brasso (metal polish) on the green case, rub it on with a cloth until the scratches are gone and then polish off, T,Cut is slightly more abrasive.
Steve.

[crackle]

Or use Bakelite polish then finish with Brasso wadding.
If the scratches are deep then use 1000 grit wet and dry paper wet with a small piece of flat wood as a sanding block. I have various sizes of beech wood about 10mm x 20mm increasing to 20 x 40mm that I have made for this depending on the size of the aera to be flattened. Then polish with Brasso etc.

[Luxman1050]

Totally agree with everyone for deepish scratches a 1000 to 1500 grit sandpaper but wet it and wipe of as you go then brasso or I've found even better is autosol metal polish gives a very nice glossy finish. Try it on an inconspicuous area and see first before doing entire cabinet.

[crackle]

Just a slight word of warning, some plastic cases are a little like Bakelite, the surface can be denser than the filler inside so if you rub too much and go too deep then the finish may be impaired.
But if there are nasty scratches I would rather see a duller more uniform surface than gouges over the surface.
Mike

[Trannytuner]

Merry Christmas everyone.
Many thanks for all the advice on polishing the Philips L3G03T cabinet, I will certainly give it a go, I think I have some brasso somewhere.
Have a great festive season
Cheers
Les