Led Blinking - Technics SL-1200MK7PP Service Manual

5.2.

LED Blinking

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