42
KEH-P5900R,P4900R,P4930R
FM ADJUSTMENT
Modulation
M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.)
S:STEREO MOD., 1kHz, L or R=30%(20.25kHz+7.5kHz Dev.)
NOTE:Before proceeding to further adjustments after switching power ON, let the tuner run for ten minutes to allow
the circuits to stabilize.
FM SSG
Displayed
Adjustment
Adjustment Method
No.
Frequency(MHz)
Level(dBf)
Frequency(MHz)
Point
(Switch Position)
TUN Volt
1
•••••
•••••
108.0
L5
DC V Meter(1) : 6V
IF
2
98.1 M
60
—
100
98.1
T51
Center Meter : 0
ANT Coil
3
98.1 M
5
98.1
L2
mV Meter(1) : Maximum
RF Coil
4
98.1 M
5
98.1
L4
mV Meter(1) : Maximum
RF
5
129.3 M
60
—
80
107.9
TC1
mV Meter(1) : Minimum
Trimmer
6
RF Coil and RF Trimmer shall be adjusted twice or more
IFT
7
98.1 M
5
98.1
T31
mV Meter(1) : Maximum
(STEREO MODE)
ARC
8
98.1 S
40
98.1
VR154
mV Meter(1) : Separation 5dB
(STEREO MODE)
RDS ADJUSTMENT
FM SSG
Displayed
Adjustment
Adjustment Method
No.
Frequency(MHz)
Level(dBf)
Frequency(MHz)
Point
(Switch Position)
1
140.0S
35
104.0
VR401
DC V Meter(2) : 1.75V+0.05, -0.35
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TEL 13942296513 QQ 376315150 892498299
