Pioneer FH-MG6406ZH X1H Service Manual page 67

FM ADJUSTMENT
Modulation M:MONO MOD., 400Hz 30%(22.5kHz Dev.)
S1: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
Center 1 98.1 M
Meter
ANT 1 89.9 M
Coil
1 89.9 M
RF Coil
IFT 1 98.1 M
1 98.1 S
Separation
1 98.1 S
ARC
Separation
1 98.1 M
Interstation
98.1 M
Noise 2
1 98.1 M
Search
2 98.1 M
Sensitivity
3 Repeat steps 1 and 2 until the adjustment standards are satisfied.
AM ADJUSTMENT
FM SSG(400Hz,30%)
No.
Frequency(kHz)
1 999
Search
2 999
Sensitivity
3 Repeat steps 1 and 2 until the adjustment standards are satisfied.
DOLBY B NR ADJUSTMENT
No. Test Tape
1 NCT-150
(400Hz,200nwb/m)
FM SSG Displayed
Level(dBf)
Frequency(MHz)
•••••
65
5
5
5
65
39
65
-∞
23.5
22.5
Displayed
Level(dBµ)
Frequency(kHz)
32
31
Adjustment Point
VR301(Lch),VR302(Rch)
Adjustment
Point
108.0 L5
98.1 L52
89.9 L2
89.9 L4
98.1 T31
98.1 VR101
98.1 VR154
98.1 •••••
98.1 VR151
98.1 VR156
98.1 VR156
Adjustment
Point
999 VR247
999 VR247
mV Meter(2) : –8.24dBm(300mV)±1dB
(DOLBY NR Switch : OFF)
FH-MG6406ZH
Adjustment Method
(Switch Position)
DC V Meter(1) : 6.5V
Center Meter : 0
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Separation 5dB
mV Meter(1) : AdB
mV Meter(1) : A-20dB
DC V Meter(2) : Level "H"
DC V Meter(2) : Level "L"
Adjustment Method
(Switch Position)
DC V Meter(3) : Level "H"
DC V Meter(3) : Level "L"
Adjustment Method
(Switch Position)
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