Tuner Section - Pioneer XR-A800 Service Manual

6. ADJUSTMENT
6.1 TUNER SECTION
m= FM Tuner Section
@ Set the mode selector to FM BAND.
@ Connect the wiring as shown in Fig. 1-1.
FM SG (1kHz, 75kHz dev.) | Reception
Adjustment
Frequency | Adjustment
Specifications
Front End 6402 Adjust so that the DC voltage between the
Sensitivity T6401 acai 20 and GND becomes at maximum
Notes:
e@ Before adjusting, make sure there is no gap between L640] and L6402. If there is a gap between them, bring them into contact with each
other first, and then make adjustments.
= AM Tuner Section
e@ Set the mode selector to AM BAND.
@ Connect the wiring as shown in Fig. 1-1.
AM SG (400Hz, 30% Mod.) Reception
Adjustment
Adjustment
eae
Title Frequency
Level eee Location
epeciegions
(kHz)
(dBuV/m)
AM Front and
Adjust so that the DC voltage between the
Sensitivity
999*! 35-45 999kHz*! 1C6201-Pin 20 and GND becomes at maximum
Adjustment level.
*1: For the area using 10kHz step, frequencies should be 1000 kHz
Loop antenna
AM SG Center
MPX SG
: AM antenna terminal
Center
XR-A800
XR-A700
FM 750, antenna terminal
Fig. 1-1 AM and FM Adjustment Wiring Diagram
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