Technics SL-1500C

11
5.2. LED Blinking
Is the
pulse signal (0-5V)
output between
Pin 1 (CP3013:HV) and Pin 4 (CP3010:GND),
Pin 2 (CP3012:HU) and Pin 4 (CP3010:GND),
Pin 3 (CP3011:HW) and Pin 4 (CP3010:GND)
of connector P3101
on MAIN PCB?
Replace MAIN PCB.
LED Blinking of
33 LED
LED Blinking of
45 LED
YES
NO
Abnormal speed or
reverse rotation
Abnormal FG signal or
Abnormal Hallsensor signal
2 times LED Blinking of
both 33 and 45 LED
Abnormal +24 V.
Replace DC MOTOR.
Replace MAIN PCB.
pulse output signal (0-5V)
Pin 1 (CP3013:HV)
Pin 4 (CP3010:GND)
P3101
MAIN PCB
MAIN PCB
CP3010:GND
CP3013:HV
CP3012:HU
CP3011:HW
Pin 2 (CP3012:HU)
Pin 3 (CP3011:HW)