Pioneer XR-A660SW Service-Handbuch - Seite 11

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4. ADJUSTMENT

4.1 ADJUSTMENT FOR XR-A660SW

Note : Adjustment of XR-A660SW/DDXJ are the same as those of XR-A660/DLXJNC except for the following:

AM Tuner SW Section

Set the mode selector to SW2.

Connect the wiring as shown in Fig. 1.

Adjustment

Step No.

Title

AM Front End

Sensitivity

Adjustment

Befor adjustment, connect AM-ANT. and IEC-dummy ANT.. Signal input is through IEC-dummy ANT.. Connecting AM-ANT. follows Fig. 1.

AM SG

R is 30Ω when SG output is 50Ω, 5Ω when SG output is 75Ω.

FM/AM TUNER MODULE (AXQ7062)

antenna

terminal

antenna

terminal

AM SG (400Hz, 30% Mod.)

Frequency

Input Level

(MHz)

(dBµV/EMF)

25-35

AM antenna terminal

IEC dummy

400pF

125pF

20µH

Fig. 1 SW adjustment wiring diagram

L6303

GRAY

BLACK

YELLOW

BLACK

T6401

L6401

Fig. 2 Adjustment points

XR-A660SW, XR-A660EE

Reception

Adjustment

Frequency

Location

Display

Adjust so that the DC voltage between the

14MHz

L6303

IC6201-Pin 20 and GND becomes at maximum

level.

320Ω

PRODUCT

T6201

Specifications

voltmeter

VR6201