Adjustment; Tuner Section - Pioneer VSX-C501-S Service Manual

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6. ADJUSTMENT

6.1 TUNER SECTION

AM Tuner Section
• There is no adjustment in the AM tuner.
FM Tuner Section
• Set the mode selector to FM BAND.
• Connect the wiring as shown in Fig. 1.
ANT. Input level and signal condition
Step Adjustment
Frequency
No. Title
T-METER
1
Adjustment
MPX SG
A
FM/AM TUNER MODULE
5
6
Input Level
Modulation
(MHz)
98 OFF
FM SG
FM75Ω antenna terminal
Fig.1 Adjustment Wiring Diagram
L201
IC201
pin 21 pin 23
SIDE B
Fig.2 Adjustment Point
6
7
Adjust
(dBµV)
point
Adjust L201 so that the DC voltage between
L201
80
Pin 21 and Pin 23 of IC201 (Test point Vtm)
gets within 0 ± 50mV.
PRODUCT
VSX-C501-S
7
8
Adjustment
Contents
DC
Voltmeter
8
A
B
C
D
E
F
85