Daewoo AKF-8825 series, Service Manual

Page: 12 / 46

ADJUSTMENTS
4-4. FM ADJUSTMENT METHOD
10
STEP
1 IF (Zero Volt)
RDS AF level
Figure 3
Figure 2
Figure 5
98.1MHz 60dBuV
No Modulation
98.1MHz 30dBuV Mod.
1kHz 45KHz DEV.
Mono
98.1MHz 40dBuV
Mod.
1kHz 45KHz DEV.
Stereo Left at Right ch.
98.1MHz
98.1MHz
98.1MHz
Adjust FM DET
for 0V + 0.03V
Fig.3 (CW03)
Adjust RV 101 on main
PC Board
for2.5V+20mV at
TP101(IC401 pin 66)
Adjust Stereo Blend
RV01 on Tuner PCB
Fig.7 10+3dB
separation between Left
and Right ch.
SNC
2
3
DESCRIPTION CONNECTION ANTENNA SIGNAL
DIAL
CONTROL
ADJUSTMENT
1. Dummy Antenna Circuit
2. Location of Adjustment Points
Refer to Adjustment Location Page
3. Control Setting
Power Switch ................. ON Balance/Fader Control ..................... Mech. Center
Band Switch ................... FM Treble/Bass Control ......................... Mech. Center
Other ............................... OFF
4. Adjustment Procedure
Note : dBu uV dBu uV
17 5.0 33 44.6
16 6.31 35 56.2
30 31.6 45 178
NOTE : Antenna signal is used.
1. For Signal Generator with readings in EMF(Open
type) add 12dB (6dB for the “Dummy” and 6dB for
EMF-reading).
2. For Signal Generator with reading in dBm add 6 dB
for “Dummy”