Sangean PR-D3L - How do I change between 12 and 24

Question edited for clarity, full 'make model what it is. Also it is a D5 not a DS.

This says if has 6 batteries, but you inserted 8? This link found via Google just happens to be where I bought my metal detector, GPS and Fish finder and the owner is a good friend. Their staff are hot on customer service if you phone and ask for help. My only thoughts are;
The batteries are incorrectly inserted.
It is set to the wrong input.
It is faulty.

Lots of help in the link

https://www.google.com/search?q=Sangean+PR-D5+won%27t+turn+on

The manual says 6 batteries, but not the polarity. Did you try the mains adapter? And you are right, the manual is not good!

https://www.manualslib.com/manual/317226/Sangean-Pr-D5.html#manual

Sangean PR-D5 AM/FM Digital Portable Radio - Radioworld

https://www.radioworld.ca > san-prd5
This light and powerful radio that is capable of being powered by the included AC adapter or 6 "C" batteries. PLL Synthesized tuning provides exact, fade free ...
$109.99 · ‎In stock

try the hard reset method ,that is, remove the battery and then insert the battery and switch the radio on ,it will help you.Otherwise try to tune the radio to required frequency by changing in the settings and try...

there is a diode D301 must be opened, replace it should be ok, but have to check your AC adaptor in advance.

The most common cause is a dirty rf controller, buy some electronic contact cleaner and take the unit apart and spray the compound into the pod and rotate control back and forth, repeat two or three times for maxium benifit.

• Hi, I can help. Unfortunately this clock is 24 time only.
• I located a free PDF copy of the manual for you that is free if you would like it but the anser to your question is No. Most Sangean Radios do but this one does not.
• Here is the manual http://www.sangean.com.au/images/PDF/manuals/PR-D3L_manual.pdf

• If you have any comments you can feel free to leave them here.\
• Hope this helps and thank you for using FixYa.

Regards, Tony

I have similar problem with this set - recordings are corrupted. Every few seconds a fraction of a second is cut off. Probably it's a problem with SD card. Someone reported this problem in amazon.com customer review for Kingston 4 GB Class 4 SDHC Flash Memory Card SD4/4GBET

Here's the thing: When you change the batteries, the radio thinks you need to reset the time, even though the time has been preserved and is correct even after you change the batteries. Here's what you do: Pretend you need to reset the time. With the radio off (recommended), press and hold the "Band" button with the "set" notation underneath it. The hour will flash. "Reset" the hour by using the tuning buttons, as you would if the radio were new, and then change it back to the correct hour. Press the "Band" button again and repeat the process for the flashing minute display. Press "Band" again to end the process. You will have successfully fooled the H201 into thinking that you have reset the time, and the time display will have stopped flashing. (This does not appear to work if you do not actually pretend to change the hour and minute and just keep pressing the "Band" button -- you have to go through the procedure as though you were actually changing the time.)

I have fixed the display on a Sangean PR-D3L that had faded to less than 30%. It was a bit involved and required pulling the radio apart and desoldering a metal sheild off the back of the display board to reveal the "zebra strip" connector for the display. I used a bit of heat and pressure on the connector strip where it contacts the circuit board - presto 100% display. Don't know how long it will last tho'.