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Pioneer SX-450 manual

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Table of contents for the manual

  • Page 1

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  • Page 2

    AM /FN STEREO RECEIUER s 450 HG RF AssT AwE lu,Quz2SA?25 xz ozor (= lE o- LN T .Y1 C! a J (o 5 c.l cw 6 0,o3 2SC+61 zo{ 2scl222xz l0v 5 d e o 6 (o F 9 (-) o ,2 ,(q d- SW ITCHIS ; SI SPEAKER S 1 POWE R OFF 2 SPA 3 SP OFF {. ql <!, @ r IK a -E & 2SCt 222 Ss MODE STEREO +---_ l'10N0 So LOUDNESS[...]

  • Page 3

    6 3 RF Asst AwE o,orHAlll3? Cr1.0.4'/:S STEREO INO EV 50 mA o e 6l C-) : 2 E. o. ol d l--' . I J-P i.iT; H.; i 'T= H Cw.41hs n :< o s CW. t. et tar i- I -'l I 2SCl222 xz I -t=fr 33.611 :< o o 3 I o G > I o, d F+ o- =-F "5 ;q F* I I ln ra -- 'rtlu s 'd F 6- 3l 9, N (-) F G. )<, LO e a n4 Ht q3or2503[...]

  • Page 4

    (DrrtoNEER" 0 ,PLS ASs'y AWK - 009 eu,,Qzor 2s c I gt gn" itAtiba', 13R x+ .--r* t s'hF @@eo ft4s)o(r/2w,_|.a | @O @@ CJ nJ I o E ol qJt E - o 9 6 I o &., I E = ADilusrHEN-r c?or22P + (1/2w) oros,ezoe 25 C l tltl 5At-4; o o lr P E > o, -+' 9. d Cmz. Crro a-a+ ^+a = ADJUSTI'IENT L2 14H Rzoo l0 (llZWl {,4s 21[...]

  • Page 5

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  • Page 6

    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 &- l-. I I" i .iT; H'* i 'T= H Yc- -A ttr C3 Qns 2SCl222 xz I -l-r33.511 )< o o ll o & > = 9, 9. t <f," o. o <.[...]

  • Page 7

    RF Ass'7 AWE oro2 2SC535 VCrlCr C,n4 P1'-Jlc-'-#lF ll;ia LA vc, rct la,Qnz2SA?25 xz ozo3, T .Y{' (v E J r02 a- lo ld 5 a, lj l= J- h )< o 9 a. or-HAl.!3? 0,03 2SC+61 AP s a C63100/16' =l Rr+s24K - o Lr) f, l0v 6 d r Ua 6 (o 5 o d o O o (J SW ITCHES ; SI SPEAKER S 1 POWER OFF 2 SPA 3 SP OFF IK a -o 2SCt 222 Ss MooE STEREO[...]

  • Page 8

    ? 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 100dB 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 indic[...]

  • Page 9

    9.2 FM SECTION 1. Through 300 ohm dummy antenna, connect FM signal generator to the 300 ohm FM antenna terminals 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[...]

  • Page 10

    9.3 MPX SECTION 1. Through 300 ohm dummy antenna, connect FM signal generator to 300 ohm FM antenna terminals. 2. Connect multiplex signal generator to extemal modulation terminals of FM signal generator. 3. Connect oscilloscope horizontal input to MPX signal pilot output and vertical input via probe to TP (No. 13) of circuit board. sx-450 4. Set S[...]

  • Page 11

    9.4 POWER AMPLIFIER SECTION (IDLE CURRENT} 1. Set BASS and TREBLE controls ro center a r'' 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 1+;, 20 (-) for Left channel and 18 [...]

  • Page 12

    )10. DrAL CORD STRTNGTNG Remove the Front panel (See page 14, 15). 1. Turn tuning drum fully clockwise (as viewed from X direction in Fig. 13). 2. Tie one end of cord to stud on inner section of tuning drum (more easily performed by loosen- ing setscrew and temporarily removing tuning drum from shaft). 3. Pass cord through pulley opening, make a ha[...]