I recently bought a DCC 175 without adapter and to be honest this was a wild guess !
I tried with an alternative power adapter (around 5,75V). When I press the Stop/Off button, it shows Charging on the display for some time (several seconds at least). When I remove the original battery and do the same exercise, charging is shown for just for a split second.
I read some other related issues in this forum and therefore know a cassette must be in the device. So when the DCC cassette is in and I press the play button I can hear a light clicking sound (relais ?!?). It also indicates if the hold switch is set or not. But that is all it does for now. I read some reply in other topic by Jac, referring to the lid switch and analog tape record indicator (not sure where to find both).
Any idea what is the problem (power supply issue) and how/if it can be fixed?
Thanks in advance for your feedback and support!