Dewalt DC012 Shop Radio no Sound

[henryvrensburg]

HI guys

I am a total rookie when it comes to sound equipment, but have some limited electronics knowledge. I have a Dewalt DC012 Shop radio. The radio switch on, change channels, even search for radio channels, but it's got no sound. Nothing from the speakers. Both the speakers measures 5.8ohms.

DO you have any idea what I can look for

[budm]

Re: Dewalt DC012 Shop Radio no Sound

Start by upload good clear outside and inside pictures so we can see what we are dealing with.

[petehall347]

Re: Dewalt DC012 Shop Radio no Sound

try plugging into aux .

[henryvrensburg]

Re: Dewalt DC012 Shop Radio no Sound

Hi guys

Im sorry for the long time delay. Please find herewith pictures of the Power supply board and I think Sound board. The only voltages I could measure was on CN508.

If ground is ground in Connector, then the 13V measured as 16.5V and the AC Det. as 9.86V.

Thank you

[kc8adu]

Re: Dewalt DC012 Shop Radio no Sound

shorted caps near the amp chip

[petehall347]

Re: Dewalt DC012 Shop Radio no Sound

did you try aux in yet ?

[henryvrensburg]

Re: Dewalt DC012 Shop Radio no Sound

Hi guys,

Thank you for your help. I could fix my Shop Radio. I found one 470mF cap close tot the AMP chip, replaced it and now my Radio is working again.

Thanks again

[sam_sam_sam]

Re: Dewalt DC012 Shop Radio no Sound

I would recommend that you replace all the capacitors

Especially if they are non brand capacitors

[kmssd]

Re: Dewalt DC012 Shop Radio no Sound

shorted caps near the amp chip

What chip is the amp? I have a similar problem, except the volume is very low at full volume.

[stj]

Re: Dewalt DC012 Shop Radio no Sound

amp is under the aluninium plate that looks like wings

[kmssd]

Re: Dewalt DC012 Shop Radio no Sound

amp is under the aluninium plate that looks like wings

Thanks, I'll have a look through my radio.

[budm]

Re: Dewalt DC012 Shop Radio no Sound

https://www.badcaps.net/forum/attach...4&d=1581186515

Verify that you do have Voltages feeding that black connector CN508, also show us the pin names for the CN508.

[gilhurt]

Re: Dewalt DC012 Shop Radio no Sound

Hi, I have the same DC012, no sound. Measured the output voltage of the power pcb assy (which feeds the radio pcb), supposed to be 13V, reads 16V (circled in orange).

Could this 3V prevent the radio board to function properly?

The visual check does not show anything damaged or burnt on all pcbs, except for the resistor (circle in red) where the pcb changed color. The color bars indicates a 15 ohms resistor which reads good. The two blue relays on the left get pretty hot too.

Thank's

Gilles

[gilhurt]

Re: Dewalt DC012 Shop Radio no Sound

Ok, thank's to everyone. Project closed, radio sent to recycling center. Gilles