Hammarlund SP-600-JX-17 Instruction And Service Manual Download Page 26 | Manualshive

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Summary of Contents for SP-600-JX-17

Page 1: ...INSTRUCTION BlOD SERVICE W A L THE I U l U R L m MANUFACTURING CO INC 460 W 54 i H St New York 1 8 Y...

Page 2: ...of Chassis Alignment Adjustments Audio and Fidelity Curves Selectivity Curves Rear View of Chassis Top View of Chassis Parts Identification for Locating Test Points Schematic Diagram Connection Diagr...

Page 3: ......

Page 4: ...17 embodies the same circuit features that have proved so effective and desirable in Hammwlund Super pro receivers Two stages of radio frequency amplification are provided on all bands single conversi...

Page 5: ...circuit 18 designed for the coaxial cable connectian of a wave antenna eystem a conventioml single wire antenna may be ueed m e self contalnea power swply o f the SP OO JXZ 8 designed i o z operation...

Page 6: ...lB of the main tuning capacitor on bands 5 end 6 by section C1A only A capacitor such a8 C3 for band I is used so tbat the antenna circuit tracking matches that of the RF aarplifier RF Amplifier The V...

Page 7: ...for single conversion The 3 5 m c crystal controlled heterodyne output from 8 i s available a t IFO connector socket 56 a t the rear skirt of the receiver when the front panel IF0 switch is set to i...

Page 8: ...e follower the 1 6 provides a ohm impedance source of intermediate f requency 455kc t o socket SO 239 on the rear s k i r t of the chassis Plug PL 259 and angle plug adapter M 359 used with coaxial ca...

Page 9: ...receiver is designed for rack mounting Top and bottom cover plates are supplied for mounting i n a standard 19 inch rack The panel i s 10 inches high See Section VII The receiver sh0uJ d be placed i...

Page 10: ...st a alnirnun by use of common conversion and beat frequency oscillators Then he operator need concern himself mostly with the signal level i n each channel and the signal tuning of the receivers To p...

Page 11: ...trol Complete counter clockwise rotation o f the RF GAIN control throws the power switch to the off position as indicated on the RF GAIN control dial Audio Gain Control The Audio Gain control varies...

Page 12: ...g transmission periods Tuning Control and Dials The TUNING control rotates the main tuning capacitor as v l as the miin andvernier tuning dials The main dial has six frequency band scales calibrated i...

Page 13: ...er to permtt the tubes to warm up Insert the head phones plug the PHONES jack or use speaker as desired See fnstallation Section 1 1 1 MCW Reception Turn the TUNING LOCK to i t s extreme counter clock...

Page 14: ...AIN control when on EUIIIN The RF Meter does not operate on the MAN position The SEUCTIVITY switch may be used in the XTAL positions as found desirable to reduce noise or to provide rejection of an in...

Page 15: ...generally indicate the component or circuit a t fault If the foregoing does not reveal the fault then a stage by stage check of amplification should be made as shown in table 4 Any great difference fr...

Page 16: ...e BFO drive shaft i n the front panel Remove the BFO shaft bearing bracket by taking out the ttm screws holding it to the chassis Unsolder the leads from the six terminals of the BFO unit at the under...

Page 17: ...receiver I n removing the unit an8 in subsequently handling it be careful to avoid strain on the delta C shaft or the delta C capacitor may be damaged Remove the four screws holding each of three sid...

Page 18: ...he input signal is applied t o pin 7 of V5 w i l l indicate trouble in the HF oscilla tor section of the unit With the covers removed from the tuning capacitor and T1 refer to Figure 1 1and unsolder t...

Page 19: ...grid of the mixer tube V5 through a capacitance of approximately 01 mfd A miniature tube adapter w i l l be required t o make the mixer grid connection available A suitable adapter A N No cV 49519 is...

Page 20: ...second conversion oscilla tor circuit i s held to a very close frequency tolerance and may be used as a frequency standard a t multiples of 3 5 m c fram 10 5 mc upwarda In order to do this in view o...

Page 21: ...d for maximum output in the same order beginning with the Osc C adjustment and then making the C adjustments for the Ant 1st RF and 2nd RF This procedure should be carefully repeated until no increase...

Page 22: ...l a t minimum and CW MOD switch on CW Mode of i Operation r f gain max r f gain min r f gain m u r f gain rnin r f gain max var freq osc operation r4 gain max crystal freq control r f gain min var fre...

Page 23: ...l r f gain max r f gain min r f gain max r f gain min r f gain max r f gain min r P gain max r f gain min r f gain max or rnin r f gain max or min r f gain max or min r f gain max r f gain m5n r f gai...

Page 24: ...5 v6 v 6 v7 v 7 v 8 v8 v9 v 1 0 1 1 1 1 v 1 2 Vl3 1 4 v15 f16 v17 ir18 n g X 2 J 0 0 0 0 infin ity infin ity 150 0 0 0 0 infin ity infin ity 0 W K 0 0 316 Infin ity jOOK 0 LS 8K 6 Mode of Operation Cr...

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Page 26: ...URVE is the fidelit of the audio frequency amplifier with input applied between terminal 3 of R84 Figure lor and ground and with the r f gain control at min DOTTED CURVE is the overall fidelity at 2 5...

Page 27: ...or Selectivity switch at 3 kc AVC MAN switch on MAN CW MOD switch on MOD RF Gain and Audio Gain at maximum BAND SWITCH 54 1 35 56 1 3 FREQUENCY Audio 400 cycles Audio 400 cycles Mod RF 455 kc Mod RF 4...

Page 28: ...SELECTIVITY CURVES Overoll a t 2 Megacycles NUMBERS DENOTE SELECTIVITY SWITCH POSITIONS 4 2 AND 3 NON CRYSTAL 4 s AND 6 CRYSTAL KC OFF RESONANCE FIG 5...

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Page 32: ...IAL NO 13096 DIODE OUTPUT AVC N D DET 8 AVC LIMITER 8 6AL5 OUTPUT METER 6AL5 DRlVER N D MIXER V I n 1 5 VI I I GATE OIMFD I I J I Kb 01 MFR IFO w 5 13 1200 r w IFO I OMEG R48 3 5MC OSC 1 I b I I 0l MF...

Page 33: ...WL 3 5 7 22 C ONLY THEY DO NOT APPEAR ON THE BARE SOLID SOFT DRAWN TINNED COPPER ELECTRICAL WIRE T E R M I N A L STRIP IS OF AWG SlZE NO 22 BBR NOS 1425 OR 1426 THE SHIELDED INSULATED CABLE IS OF AWG...

Page 34: ...WN TINNED COPPER ELECTRICAL WlRE IS OF AWG SlZE NO 2 2 BBR NOS 1425 OR 1426 THE SHIELDED INSULATED CABLE IS OF AWG SlZE NO 2 4 AND HAS 16 NO 3 6 STRANDS ALPHA NO 1248 PL THE COAXIAL CABLE RG 58 U IS A...

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Page 39: ...f ll 33 mmf I1 1500 mmf O 7 m f I1 1000 m f I t 59 mlf I t 39 mmf 11 Variable I 1 85 mmf Capacitor 220 m m f 11 3300 mmf I 404 mmf I t 5 mlf 810 mf 10 mmf 1200 mmf 120 mmf 12 mnf 1 mmf 51 IIIIII 379 m...

Page 40: ...thru RF Tuner includes C2 C3 L1 and switch contacts for S1A RF Tuner includes 4 5 2 and switch contacts for S1A RF Tuner includes 6 7 8 L3 an4 switch contacts for S1A RF Tuner includes cg 10 cll L4 an...

Page 41: ...cts for SlD RF Tuner includes 94 C95 96 30 and switch contacts for S1D Dial Lam No 47 Mazda Fuse 1 6 Fusetron Fuse 3 8 m p Connector Socket ANT IF IFO BFO and m Phone Jack Connector Socket remote Conn...

Page 42: ...10 ohms watt 51 ohms watt 24 ohms A watt 22 ohms watt 47K k watt 22K gwatt 1 8 0 ohms A watt H 150 ohms watt 6800 ohms I watt E 2200 ohms watt 1500 ohms watt 1 0 0 I C 1 watt loOK watt 22K watt 4 3 wa...

Page 43: ...5864 1 15867 1 15880 1 31469 3 31469 2 31183vG1 31116 2 31114 G2 31102 G2 31102 G2 IF rknsformer 455K with shield can includes 23 124 125 126 L41 L42 L43 RT Oscillator Subassembly BFO with shield 3110...

Page 44: ...rge top hat Screw captive spare fuse cover Shell hood for 6 Spring anti backlash spider Spring Band Change Detent Spring Conversion Switch Spring Crystal Retaining Spring IF adjuster grounding Spring...

Page 45: ...nd divide sum by 3 3rd Hartrionic 44 0450 t o 54 00000 3 855000 and divide sum by 4 4th Harmonic P I O m Since 7 40 m c is the signal frequency at which the intermediate fre t quency i s changed for d...

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