The Condition of Power Protection Active.
Voltage of SMPS’s +, - PVDD (+30V, -30V) is higher or lower
than Standards Normal Condition Voltage
Range: PVDD (+30V, -30V): about +30V, -30V
Over-current occurs to FET (Over-output or Output short)
FET’s temperature exceed 150°C.
No supply voltage on GATE DRIVER.
AMP Pre-Inspection relating to
Power Protection.
If you think, there are problems at the AMP PCB, you can
check the pcb without disassemble the set.
- Side 2 points and rear 3 point screws uncrew.
- Screws 3 point and wire seperation.
- Pull out the wire from cabinet-front and main.
- Pull out the cabinet-front.
- Pull out the wire between PCB.
Unscrew the screws on the PCB.
Unscrew the rear screws.
Disassemble complete.
