Fm Adjustment; Rds Sl Adjustment; Dolby Nr Adjustment - Pioneer SC430 Service Manual

FX-MG8156ZT,MG8156ZT-91,MG8317ZT,MG8317ZT-91

FM ADJUSTMENT

Modulation M:MONO MOD., 400Hz 30%(22.5kHz Dev.)
S1:STEREO MOD., 1kHz, L or R=30%(20.25kHz+7.5kHz Dev.)
S2:STEREO MOD., 1kHz, L or R=60%(40.5kHz+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
1 129.3 M
RF Trimmer
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.

RDS SL ADJUSTMENT

No.
Frequency(MHz)
1 104.1 S2
TUN Volt

DOLBY NR ADJUSTMENT

No. Test Tape
1 NCT-150
(400Hz,200nwb/m)
72
FM SSG Displayed
Level(dBf)
Frequency(MHz)
•••••
65-85
5-15
5-15
5-15
60-80
65
40
65
-∞
27
26
FM SSG Displayed
Level(dBf)
Frequency(MHz)
35
Adjustment Point
VR301(Lch),VR302(Rch)
Adjustment
Point
108.0 L5
98.1 L52
98.1 T31
89.9 L2
89.9 L4
107.9 TC1
98.1 VR101
98.1 VR154
98.1 •••••
98.1 VR151
98.1 VR156
98.1 VR156
Adjustment
Point
104.1 VR251
mV Meter(2) : –8.24dBm(300mV)±1dB
Adjustment Method
(Switch Position)
DC V Meter(1) : 6.0V
Center Meter : 0
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Minimum
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(3) : 1.75V+0.05V
-0.35V
Adjustment Method
(Switch Position)
(DOLBY NR Switch : OFF)