Pioneer KEH-P490 Service Manual page 48

FM ADJUSTMENT (UC MODEL)
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.
No.
Frequency(MHz)
1 •••••
TUN Volt
IF 2 98.1 M
3 98.1 M
ANT Coil
4 98.1 M
RF Coil
IFT 5 98.1 M
ARC 6 98.1 S
FM ADJUSTMENT (ES MODEL)
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.
No.
Frequency(MHz)
1 •••••
TUN Volt
IF 2 98.1 M
3 98.1 M
ANT Coil
4 98.1 M
RF Coil
IFT 5 98.1 M
ARC 6 98.1 S
FM SSG Displayed
Level(dBf)
Frequency(MHz)
•••••
60 100
—
5
5
5
40
FM SSG Displayed
Level(dBf)
Frequency(MHz)
•••••
60 100
—
5
5
5
40
Adjustment
Point
107.9 L5
98.1 T51
98.1 L2
98.1 L4
98.1 T31
98.1 VR154
Adjustment
Point
108.0 L5
98.1 T51
98.1 L2
98.1 L4
98.1 T31
98.1 VR154
KEH-P490,P4900,P4950
Adjustment Method
(Switch Position)
DC V Meter(1) : 6V
Center Meter : 0
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Maximum
(STEREO MODE)
mV Meter(1) : Separation 5dB
(STEREO MODE)
Adjustment Method
(Switch Position)
DC V Meter(1) : 6V
Center Meter : 0
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Maximum
(STEREO MODE)
mV Meter(1) : Separation 5dB
(STEREO MODE)
41