Head Unit switch off with speakers connected

[Willfin]

Ive recently had my TVR laid up over the winter, and removed BECKER head unit as i didn't want it sitting in the car.

Anyway, Ive gone back to fitting it, and when the power plug is connected the unit powers on fine, but when i then connect the speakers plug, it turns off!

Any reason why the unit would turn off when the speakers are connected? Back earth somewhere?

Thanks in advance.

[David Beer]

Has anything changed wiring wise? Most units will detect a short circuit and cancel the output, but to turn off would sugest a poor power supply as only when speakers are connected is there any 'current ' draw. Of course the unit could of gone wrong! I would suggest removing the speaker wiring and introduce a speaker wire at a time, just in case there is a short. do you have a multi meter to measure resistance? If you do you should see around 4 ohm, but zero to chassis/ ground. This is slow help, if I can help give me a ring.

Edited by David Beer on Friday 8th April 07:13