JL Audio 500/1 Rev 11 Brd No -15VDC on Main Brd

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Have a JL Audio 500/1 amp with Rev 11 brd set that does not power-up. Troubleshooting found it has no -15VDC on pin 2 of P4. Traced it back to the main board. Top control brd, connectors are fine. No -15VDC on center 4.7 ohm resistor to the left of T601 on main board.

Any tips or info greatly appreciated.
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.