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3 6 AwE RF Asst Cr1.0.4'/:S o,orHAlll3? STEREO INO o 50 mA EV 6l e C-) : 2 E. o. ol d l--' . J-P I i.iT; H.; 'T= i Cw\.41hs H I :< o o -'l 3 I o I G > n 2SCl222 xz I :< -t=fr o 33.611 F+ s CW. I o- t. et o, =-F "5 d tar i- ;q I F* I ?sct3 8+ Dx )<, -- Qrot F LO I ln ra 'rtlu 6- e s 'd a n4 Ht 3l 9, N (-) q3or2503l3R F G. + d @ e 01 C2a6 C.O I v) C)o VRl BALANCE 5t tr- 3- CONTROL --25. 1tl(85) h A - ugot Uxos DS- l50Ax+ DtAu tt't0tCAT0R 300mA x3 8V
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Ass'7 AWE RF oro2 2SC535 C,n4 VCrlCr r02 a- lo l= ld 5 or-HAl.!3? a, J- )< P1'-Jlc-'-#lF ll;ia o lj 9 a. h T 0,03 2SC+61 .Y{' (v LA vc, rct C63100/16' E J =l Rr+s24K AP s a la,Qnz2SA?25 xz ozo3, - o Lr) f, ( l0v 6 d d r Ua (o 6 5 o o O o o d (J @ S: IK a -o 2SCt 222 SW ITCHES ; SI SPEAKER S Ss MooE ++ 1 POWER OFF STEREO l'10N0 2 SPA 3 SP OFF Ss LOUDNESS Ac VOLTAGE SELECTOR S4 4_ 52 FM MUTING 220V 240v -'t 0N OFF : AT STGNAL VOLTAGE I' VI 53 FUNCT|0N RESISTORS: '-> : mA DC CURREN
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sx-450 9. ADJUSTMENT ? 9.1 AM SECTION 1. Through a 1k ohm resistor, connect an AM 7. Adjust TC4 for maximum indication on AC signal generator to the AM antenna terminal. voltmeter. Set for 40OHz at 100dB and 3O% modulation. 8. Again set AM signal generator and SX-450 dial 2 Connect AC voltmeter to TAPE REC indication to point iack A. (L or R). 9. Adjust bar antenna core for maximum in- Set FUNCTION switch position. to AM dication on AC voltmeter. 4. Set AM signal generator and SX-450
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9.2 FM SECTION / A | 1. Through 300 ohm dummy antenna, connect 9. Adjust TC3, then TC1 and TC2 for *u"i*rr- generator FM signal to the 300 ohm FM indication on AC voltmeter. antenna terminals and set for 4OOHz 100dB at 10. Again set FM generator signal and SX-450 dial IO0% and modulation. indication point to A. 2. Connect AC voltmeter and distortion meter to 11. Adjust T3, then T1 and T2 for maximum jack TAPE REC (L or R). indication on AC voltmeter. 3. Set FUNCTION switch to FM a
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sx-450 9.3 MPX SECTION 1. Through 300 ohm dummy antenna, connect 4. Set SX-450 dial indication to 98MHz and adjust generator FM signal to 300 ohm FM antenna FM signal generator for center of scale indi- terminals. cation on AM/FM meter. 2. Connect multiplex signal generator to extemal 5. With FM signal generator unmodulated, adjust modulation terminals of FM signal generator. VR1 so that lissajous pattern on oscilloscope 3. Connect oscilloscope horizontal input to MPX becomes stationary as s
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9.4 POWER (IDLE AMPLIFIER SECTION CURRENT} 1. Set a r'' BASS and TREBLE controls ro center position. 2. Nothing should be connected to the INPUT jacks of SX-450 and an 8 ohm dummy load should be connected across the SPEAKER terminal. 3. A DC voltmeter should be connect across between terminal number (-) 19 20 for 1+;, Left channel and 18 (-) l7 for Right 1+1, channel. jumper 4. Cut the lead, if the voltage less than 15mV. DC Voltmeter fi j**' ita { # fNt ed
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sx-450 DrAL CORD STRTNGTNG )10. panel (See page Remove the Front 14, 15). DIAL NEEDLE INSTALLATION CAUTION fully clockwise (as viewed 1. Turn tuning drum portion pointer plated. Metal of dial is in Fig. 13). from X direction section is hand If this touched directly by or of cord to stud on inner section of 2. Tie one end fingerprints impurities, it is and other difficult to (more easily performed by loosen- tuning drum remove from finish. is not dirt aventurine As this setscrew and tem
