NOCTUS - SC 9100 DCF RDS
Abgleichvorschriften / Adjustment Procedures
GRUNDIG Service
2 - 2
Adjustment Procedure
Tuner
Test equipment: Signal Generator, Oscilloscope, Digital Voltmeter
Adjustment
Preparation
Adjustment Procedure
FM Oscillator
FM Band Pass
87.5MHz;
Digital Voltmeter to testpoint TP3.
Signal Generator to aerial input ANT1
Ue <; f
mod
= 1kHz;
Oscilloscope to Loudspeaker.
Adjust (bend) with L2 for 1.70V
±
0.05V.
Adjust alternating with L1 (bend) at 90MHz and with TC1
at 106MHz to AF Maximum.
75kHz Oscillator
Test equipment: Frequency Counter
Adjustment
Preparation
Adjustment Procedure
75kHz Oscillator
Frequenzy Counter to testpoint TP4.
Adjust with TC2 for 75kHz
±
10Hz.
4.332MHz-Oscillator
Test equipment: Frequency Counter
Adjustment
Preparation
Adjustment Procedure
4.332MHz Oscillator
Frequenzy Counter to testpoint TP6.
Adjust with TC3 for 4.332MHz
±
10Hz.
Radio PCB
Display PCB
