This is a cool bit of vintage Alpine gear so I get why you'd want to hold onto it. Open the case and take a look at the RCA sockets for mechanical damage. They may only need a dab of fresh solder to fix the bad connections. If the board has a break in it you can add wire traces to the section that has failed to create a new solid connection.
to have them work you have to connect the yellow wire to constant 12 volt power,and the red to blue and white wire coming from the radio if you dont have a blue remote wire on the radio connect it to the accessory of the car wire that power the radio
Is this a custom instal? If yes, Check that the amps are powering up. You may need to check the fuse for the amps or the remote wire fuse. It could have blown hooking up the new battery. If there are no amplifiers check both fuses for the Alpine deck unit.
Unless other specified in paperwork, all Alpine receivers are 4ohm capable only.
Now yes there are exceptions, but not many.
Now for amp almost all alpine amps can be run in several different resistances.
Basically for sure 4ohm, now depending on model some have abilities to go as low as 1ohm stable. But for most 2 ch alpine non special amps are all 4ohm and most 2ohm capable.
Now better models can do things such as run 2,3,4 ch. And some can even get to .5 ohm loads stable.
Sep 5, 2013 - Uploaded by Mx Car Audio
I recently bought the Alpine W940 and the bluetooth that connects to ... A simple reboot at the shop and the ...
sp?ciales, de l'actualit? d'Alpine, et vous aurez une chance de remporter des prix. Gracias por adquirir ... MANUAL DE OPERACI?N .... Listening to the Radio .