Car Stereos: phoenic gold zx 350 car amp, phoenix gold zx350, jumper wire


Question
QUESTION: i have an old skool phoenix gold zx350 amp, basically i sent it back into pg for repair; b/c i accidentally knocked off the 8 ribbon 26gauge wire conductor from xover board to main board, upon receivng the amp back + that fixed, i threw the amp on my 12v ps(jumper wire from power to remote) i went to instal my car, and once i re-installed my inline fuse holder, the amp powered up, so i pulled the amp + threw it back on my ps w/out a jumper wire to the remote, and sure enough it came on, i used my dmm + read 14.10volts from the ground and power, then i read -0.01 on the remoteterminal, any clues whatelse to check?, or this could be?

ANSWER: Christian,  It sounds like it is not wired correctly inside.  I would just put a switch on the power supply wire.  If you want to use a remote wire for turn on, you can buy a relay switch that will switch your power supply wire on when the remote wire is turned on.  The relay switch would cost about $20.  Be sure the ground is hhoked up before any power wires.  If you think there is a wiring problem, you could contact phoenix gold and inquire about their repairs.  Hope this helps, Scott

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QUESTION: thanx, also i noticed that one of the positive input power cap terminal has a jumper wire soldered to the motherboard(ps), ive thought about cutting this, ( i think i must of accidentally desoldered one of the vias when i replaced the leaking input caps-maybe i will call alek(tech @ pg who repaired this and thanks again-obviously i have some knoweldge( pr the ability to remove/replace leaking input/power caps, but not how to diagnose this-

Answer
Yes, that is a little odd that it would have a jumper wire soldered from the terminal to the board.  I would definitely question them about that.  There may be some type of explanation for the jumper.  If the internal relay was burned up for some reason, they may have run the jumper to bypass the relay.  That would explain the powering up problem.  They should have some answers for you.