SONY XRC7220
Instrukcja Serwisowa

FM Stereo Separation Adjustment Setting: [SOURCE] button : FM FREQUENCY SELECT switch : FM 200 k
FM RF signal generator antenna jack (J1) 0.01 µF set 10 k� + � level meter

MW Auto Scan/Stop Level Adjustment Setting: [SOURCE]and[MODE]buttons : MW FREQUENCY SELECT switch : MW 10 k
30 � 15 pF

65 pF
AM RF signal generator AM dummy antenna (50 �) Carrier frequency : 1000 kHz 30% amplitude modulation by 1 kHz signal Output level : 33 dB (44.7 µV)

Carrier frequency Output level Mode Modulation

AUDIO OUT REAR jack : 97.9 MHz (CNJ151) : 70 dB (3.2 mV) : stereo : main: 1 kHz, 33.75 kHz deviation (45%) sub: 1 kHz, 33.75 kHz deviation (45%) 19 kHz pilot: 7.5 kHz deviation (10%)

set

antenna jack (J1)

Procedure:
FM Stereo signal generator output channel L-CH R-CH R-CH L-CH L-CH L-CH R-CH R-CH A B Adjust RV4 on TU1 for minimum reading. C D Adjust RV4 on TU1 for minimum reading. Level meter connection Level meter reading (dB)

Procedure: 1. Set to the test mode. (See page 13) 2. Push the[SOURCE]button and set to FM. 3. Push the[MODE]button and set to MW. Display

L-CH Stereo separation: A-B R-CH Stereo separation: C-D The separations of both channels should be equal. Specification: Separation more than 30 dB Adjustment Location: See page 16.

TP

SHUF

4. Adjust with the volume RV1 on TU1 so that the �MW� indication turns to �MW0� indication on the display window. But, in case of already indicated �MW0�, turn the RV1 so that put out light �0� indication and adjustment. Display

TP

SHUF

Adjustment Location: See page 16.

� 15 �