Pioneer FX-MG8247ZT/ES Service Manual page 115

5
FM ADJUSTMENT(FX-MG8247ZT/ES)
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
IFT 1 98.1 M
ANT 1 89.9 M
Coil
1 89.9 M
RF Coil
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.
FM ADJUSTMENT(FX-MG8247ZT/Q1)
No.
Frequency(MHz)
1 •••••
TUN Volt
Center 1 98.1 M
Meter
IFT 1 98.1 M
ANT 1 89.9 M
Coil
1 89.9 M
RF Coil
1 98.1 S
Separation
1 98.1 S
ARC Sep-
aration
1 98.1 M
Interstati-
98.1 M
on Noise 2
1 98.1 M
Search
2 98.1 M
Sensitivity
3 Repeat steps 1 and 2 until the adjustment standards are satisfied.
SW2 ADJUSTMENT(FX-MG8247ZT/Q1)
No.
Frequency(MHz)
1 •••••
TUN Volt
DOLBY NR ADJUSTMENT(FX-MG8247ZT/ES,FX-MG8247ZT/Q1)
No. Test Tape
1 NCT-150
(400Hz,200nwb/m)
5
6
FM SSG Displayed
Level(dBf)
Frequency(MHz)
••••• 108.0
65-85
5-15
5-15
5-15
65
40
65
-∞
27
26
FM SSG Displayed
Level(dBf)
Frequency(MHz)
••••• 108.0
65-85
5-15
5-15
5-15
65
40
65
∞
-
27
26
AM SSG Displayed
Level(dBµ)
Frequency(MHz)
•••••
Adjustment Point
VR301(Lch),VR302(Rch)
FX-MG8247ZT/UC
6
7
Adjustment
Point
L5
98.1 L52
98.1 T31
89.9 L2
89.9 L4
98.1 VR101
98.1 VR154
98.1 •••••
98.1 VR151
98.1 VR156
98.1 VR156
Adjustment
Point
L5
98.1 L52
98.1 T31
89.9 L2
89.9 L4
98.1 VR101
98.1 VR154
98.1 •••••
98.1 VR151
98.1 VR156
98.1 VR156
Adjustment
Point
21.975 T231
mV Meter(2) : –8.24dBm(300mV)±1dB
(DOLBY NR Switch : OFF)
7
8
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) : more than 3.5V
DC V Meter(2) : 0V
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) : more than 3.5V
DC V Meter(2) : 0
Adjustment Method
(Switch Position)
DC V Meter(3) : 6.0V
Adjustment Method
(Switch Position)
8
A
B
C
D
E
F
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