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3、12 tO! 2 xz Qror Rlor 33 93_or FU ocor250313R n n trr.vl n UXos - UIOB U3o8 DIAL INDICATOR EV 300mA x3 3 cr O .r- U) C)o 5cr- c- !- ASsy AWK - 069 Qo,r,Qos 2SCl3tSAxz 2gltQlxz ,0.6V SW 3H a1 Rll E2K .-* t S hF c eo R.,o(-uig I to = .s a = ADJUSTilENT c?os22P + c- E. $ o o E .J : O . -+ o , d Crn 22P
4、 d- = ADilUSTtlENT L2 11H Rzco l0 (llZWl shs1i+ Sfvcn (r 9 t r C) (r 5t c- !- RF Ass/ AWE o, HA1.l37 REC- i Li I VI : SIONAL VOLTAGE AT G mA : DC CURRENT AT NO V : DC VOLTAGE AT NO 6 3 o o t, o (ji LV STEREO IND 8V 50 mA a,e HAll o E a o o s ) o 9 c- ci r H* i T= H Y c - -A ttr C3 Qns 2SCl222 xz I -
5、l-r33.511 ) = 9, 9. t f, o. o ., c:, I I tAs J 2 I E o3o,250313R : N . E flK NK I uEdh+HtE l10Nlr0R I ffi 1M(85) t-249 J.U I Rzia iOoir v) ? 5t- tr- 3- EAKER OUTPUT 10.9V /EQ (lKHr) IGNAL Dto,l ll s tdt b 3 ?scl3 8+ Qrot 2sv D 6 Drs - Dror N-l50Ax+ DIAL INDICATOR 8V 300nrA x3 RF Ass7 AWE oro2 2SC535
6、 VCrlCr C,n4 P1-Jlc-#lF ll;ia LA vc, rct la,Qnz2SA?25 xz ozo3, T .Y (v E J r02 a- lo l d 5 a, lj l= J - h ) mA : DC CURRENT AT N0 V : DC VOLTAGE AT NO ( d o S: ? 9. ADJUSTMENT 9.1 AM SECTION 1. Through a 1k ohm resistor, connect an AM signal generator to the AM antenna terminal. Set for 40OHz at 100
7、dB and 3O% modulation. 2 Connect AC voltmeter to TAPE REC iack (L or R). Set FUNCTION switch to AM position. Set AM signal generator and SX-450 dial in- dication to point A (600kHz). Adjust T6 for maximum indication on AC voltmeter. Set AM signal generator and SX-450 dial in- dication to point C (1,
8、400kH2). 4 . sx-450 7. Adjust TC4 for maximum indication on AC voltmeter. 8. Again set AM signal generator and SX-450 dial indication to point A. 9. Adjust bar antenna core for maximum in- dication on AC voltmeter. 10. Return AM signal generator and SX-450 dial indication to point C. 11. Adjust TC5
9、for maximum indication on AC voltmeter. 12. Repeat steps 4-11 to eliminate variations in AC voltmeter indications at noint A and C. F q . ) 5. c). 1 AC voltmeter AM signal generator t r q 25 9.2 FM SECTION 1. Through 300 ohm dummy antenna, connect FM signal generator to the 300 ohm FM antenna termin
10、als and set for 4OOHz at 100dB and IO0% modulation. 2. Connect AC voltmeter and distortion meter to TAPE REC jack (L or R). 3. Set FUNCTION switch to FM and MUTING switch to OFF. 4. Set FM signal generator and SX-450 dial indication to point A (90MHz). 5. Adjust T3 for maximum indication on AC voltm
11、eter. 6. Adjust T5 lower core for center of scale indication on AM/FM meter. 7. Set FM signal generator for 9dB output and adjust T1 and T2 for maximum indication on AC voltmeter. 8. Set FM signal generator and SX-450 dial indication to point C (106MHz). 9. Adjust TC3, then TC1 and TC2 for *ui*rr- A
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