Technics SU-G700E - No Meter Operation

32
7.15. No Meter Operation
No Meter Operation.
Input Signal (1kHz, 0dB) and set volume level 22 for investigation.
YES
Is the correct voltage
presented at P6503 on AMP PCB?
Between
Pin 15 and 5: around 145mV (for Meter L)
Pin 13 and 5: around 145mV (for Meter R)
NO
Replace AMP PCB.
Is the correct voltage
presented at P4552 on Main PCB?
Between
Pin 26 and 36: around 145mV (for Meter L)
Pin 28 and 36: around 145mV (for Meter R)
NO
Replace FFC.
YES
YES
Is the correct voltage
presented at P7003 on Main PCB?
Between
Pin 4 and 1: around 145mV (for Meter L)
Pin 2 and 1: around 145mV (for Meter R)
NO
Replace Main PCB.
NO
Replace FFC.
YES
Is the correct voltage
presented at P8801 on Meter PCB?
Between
Pin 11 and 1: around 145mV (for Meter L)
Pin 13 and 1: around 145mV (for Meter R)
Replace Meter Unit.
NO
YES
Is there a connection
in Meter PCB?
Between
Pin 11 of P8801 and RL8803 (for Meter L)
Pin 13 of P8801 and RL8801 (for Meter R)
Replace Meter PCB.