Pioneer KEH-P7800R Service Manual page 47

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.)
S2:STEREO MOD., 400Hz, L or R=60%(40.50kHz+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
RF 5 129.3 M
Trimmer
6 RF Coil and RF Trimmer shall be adjusted twice or more
IFT 7 98.1 M
ARC 8 98.1 S
RDS SL ADJUSTMENT
No.
Frequency(MHz)
1 104.0 S2
DOLBY B NR ADJUSTMENT
No. Test Tape
1 NCT-150
(400Hz,200nwb/m)
FM SSG Displayed
Level(dBf)
Frequency(MHz)
•••••
60
5
5
60 80
—
5
40
FM SSG Displayed
Level(dBf)
Frequency(MHz)
35
Adjustment Point
VR301(Lch),VR302(Rch)
Adjustment
Point
108.0 L5
98.1 T51
98.1 L2
98.1 L4
107.9 TC1
98.1 T31
98.1 VR154
Adjustment
Point
104.0 VR701
mV Meter(2) : –6dBs±1.0dB
KEH-P7800R,P6800R
Adjustment Method
(Switch Position)
DC V Meter(1) : 6V
Center Meter : 0
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Minimum
mV Meter(1) : Maximum
(STEREO MODE)
mV Meter(1) : Separation 5dB
(STEREO MODE)
Adjustment Method
(Switch Position)
DC V Meter(2) : 1.75V+0.05V,-0.35V
Adjustment Method
(Switch Position)
(DOLBY NR Switch : OFF)
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