I am new at this and have the same problem with 3 ac/dc transistor radios. I am not following exactly what contacts are being shorted out. Is it the + and - contacts on the AC? I marked up photo with arrows would take the guesswork out for me.
Yes. Try shorting the switch pins on the socket.I would say its the dc jack socket thats faulty, most mains/ battery radios switch off the battery positive lead via the mains lead jack socket.
Post pictures please
Some AC plug in's have an auxiliary contact that disconnects the battery. Have you tried unplugging the AC connector?Repairing portable radio, AC works, batt doesn't. I have 2 radios from the 1960s-70s. Both are VISCOUNT 1860.
https://www.radiomuseum.org/r/viscount_18_transistor_acdc_afc_6_band_1860_japan_304.html
It has a direct AC plug-in with a two-prong connection. The AC works fine but the batteries do not work at all. It has an AC/DC switch, but switching it does not help. Both radios have the exact same issue.View attachment 190113
Thread starter | Similar threads | Forum | Replies | Date |
---|---|---|---|---|
U | Help repairing RC board | Technical Repair | 5 | |
M | Need help repairing Vevor KZ-SZM 15 mixer | Technical Repair | 1 | |
R | Portable Lamp Repairing - Optical switch | Technical Repair | 10 | |
Repairing portable radio, AC works, batt doesn't | General Electronics Chat | 8 | ||
D | Repairing Portable Ice Maker | General Electronics Chat | 0 |
by Duane Benson
by Jake Hertz
by Aaron Carman