CETEC Sparta 625A Скачать руководство пользователя | Manualshive

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Содержание Sparta 625A

Страница 1: ...www SteamPoweredRadio Com Model 625A FM Transmitter NUAt c r oS 8rEE...

Страница 2: ...oration proprietary data is contained herein Neither this document nor the information contained herein shall be disclosed to others for manufacturing or any other purpose except as authorized in writ...

Страница 3: ...present and exposed to mainte nance personnel working with power on and interlocks defeated When maintenance requires working with power on and unit open exercise extreme caution Stand on insulated su...

Страница 4: ...river Primary Power 2 4 4 Exciter Input Signal Connections 2 4 5 Cabinet Interconnections 2 4 6 PA Tube Installation 2 5 REMOTE CONTROL CONNECTIONS 2 5 1 Stereo SCA Remote Control 2 5 2 PA Remote Cont...

Страница 5: ...TRATIONS Title Model 625A FM Transmitter Top View Floor Space Model 625A FM Transmitter Front and Side View H V Transformer T 203 Front View Component Location Control Chassis Component Location VSWR...

Страница 6: ...1 3 2 3 3 6 1 6 2 098 7042 LIST of TABLES Title Physical Characteristics Functional Characteristics Operating Controls and lndicators PA Section Typical Operating Voltages and Currents Efficiency Curv...

Страница 7: ...venged of incidental warm air by ventilating fans The circuit design of the blower furnishing air to the PA cavity is such that it will continue to run for a preset interval after the transmitter is s...

Страница 8: ...eristics 75 inches high 68 inches wide 24 inches deep 36 inches high 34 inches wide 24 inches deep 2750 pounds Two enclosed steel cabinets access provided through hinged front panels and rear cabinet...

Страница 9: ...modulation 25 Kilowatts 25 Kilowatts maximum adjustable down to 17 kilowatts as measured at output of the harmonic filter 50 Ohms nominal I 75 1 maximum 1 KHz 7S KHz 100 750 KHz at 3 DB points 80 DB m...

Страница 10: ...682 b SCA Generator Model 683 41 or 67 KHz When operating in the monaural mode the 41 KHz and 67 KHz SCA units may be used individually or simultaneously When operating in the stereophonic mode the 4...

Страница 11: ...unctional characteristics in Section I 2 1 4 Cooling Requirements There are no external cooling requirements for the Model 625A The unit is cooled by three single phase blowers and two single phase fa...

Страница 12: ...I I I l I I IX UJI C IUCTION4L CO JPL R I Z03 REV RS J OZ RF OCliPUT IOI LT 7 Ll JI r l e4 l t JZOl t ORW MI L1 IIMMONIC FIL TE JZ04 FORWI RI 203 R V RSG 12 I 7 1a 4 S Cl ro 0 sr I 1 sf 1 I IJRIVl R J...

Страница 13: ...adio Com I I I I I I I I I I I I I I I I I I I Model 625A 098 7042 t _ __JJ Zit D 0 Do 0 I Do Do I I 0 Do o D D I I fil I c J c J I I w Model 625A FM Transmitter Front and Side View Figure 2 2 l I J I...

Страница 14: ...ation details INPUT AND OUTPUT CONNECTIONS With the exception of the RF output and the power monitor inputs from the directional coupler all inputs and outputs of the Model 625A are routed into the un...

Страница 15: ...I I I I I I I I I 098 7042 I 3300V 33 O JV 0 0 S COND 4RY 208 230 00 0 JO 208 0 0 I 0 0 0 0 I I 230 208 10 0 10 Z3o 208 10 0 o 230 208 10 0 IO N H V Transformer T 203 Figure 2 3 Section II 3300V 0 I J...

Страница 16: ...1 Figure 3 13 and 2 3 Connect the station ground to both cabinets WARNING 230V AC is present on one side of primary of HV transformer T203 when safety disconnect switch is closed 2 4 3 DRIVER Primary...

Страница 17: ...ligned concentrically with the coaxial capacitor Care must be exercised in order to properly sit the base of the tube over the socket contact rings Then exert pre s sure downward until the tube rests...

Страница 18: ...ures 3 1 and 3 2 all operational controls and indicators are located at the front of the unit Table 3 1 lists these operating controls and indicators and gives their reference designation and a brief...

Страница 19: ...2 A 1WSTRVCTION 800K DSZCG OSZ03 oszos I MZMI mo2j 0 1112031 M2 06I I LIDS I L 04 I OUTPc T q lOADJNC OVTPfJT TUNING I C 02 IJJPr T TUNIN r i N l J N _ r3rj jzos o o o 11M 1 o o o Mzo s H j 1 Q 0 N NN...

Страница 20: ...lit Provides continuous readout of PA grid current Provides continuous readout of PA plate current Provides continuous readout of PA plate voltage As selected by PA POWER OUT switch S213 provides read...

Страница 21: ...ed RF power output overload It remains lit until LAMP RESET S209 is operated I I I Applies mains power to control transformer T202 which in turn energizes control circuits PA filament I transformer an...

Страница 22: ...eated Exercise extreme caution when maintenance requires working with power on and unit open Stand on in sulated surface Work with only one hand inside unit and the other hand in your pocket Use only...

Страница 23: ...s and filament voltage is applied to DRIVER section FIL ON lamp DSl should lite Measure V2 filament voltage set MULTIMETER switch S3 to FINAL FIL VOLTS and adjust to 5V After approximately 30 sec INTE...

Страница 24: ...and adjust DRIVER TUNING dial in DRIVER section for maximum FINAL GRID current of TUBE V2 NOTE At this point some power output should be indicated by PA POWER OUTPUT meter M206 in PA section e Adjust...

Страница 25: ...e plate tuning of the DRIVER maintained at resonance o Now increase the DRIVER power output RAISE to obtain the desired level of drive to the PA INPUT circuit The required IPA screen voltage will of c...

Страница 26: ...VAC 5 VAC FINAL SCREEN VOLTS 350 V 410 V FINAL SCREEN CURRENT SO MA 80 MA FINAL GRID VOLTS 160 V 155 V FINAL GRID MA 30 MA 35 MA FINAL PLATE VOLTAGE 2500 V 4600 V FINAL PLATE CURRENT 420 MA 490 MA PO...

Страница 27: ...eamPoweredRadio Com I Section III Model 625A I I I 25 KW I 80 17 KW I 70 E I z CJ et I 0 60 t z I u ti so I 40 I I 30 85 90 95 100 105 1 10 I FREQUENCY MHZ I I I Efficiency Curve I Fig 3 3 3 10 098 70...

Страница 28: ...I I 0 I I I 098 7042 I I ti t i _ I I I I I l Jl I IZCl t Control Chassis Component Location Figure 3 2 I SIS Kl K2 8 IS A 3 I Al 2 3 4 5 7 8 9 VSWR Protection Board A 1 Automatic Power Control Board...

Страница 29: ...III 2 30 208 lo 0 1 0 3 12 F f ONT OF CABINET 7202 15 CONT Ot TRA 1 Sf MR 0 201 H V hl 1 1 ii CIIOKE 0 11 v 7soov INPUT Base Plate Assembly Figure 3 4 C202 H V FILTER CAPACITOR Model 625A 098 7042 I I...

Страница 30: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I I Model 625A 098 7042 F ONT Of CABINET 210 RZl 3 c i1u14 c J 215 RZ02 ltZ06 Resistor Panel Figure 3 5 Section III R208 T820Z TZOI 3 13...

Страница 31: ...www SteamPoweredRadio Com Section III T940Z I IS 3 14 Contactor Panel Figure 3 6 EJ B Model 625A 098 7042 I I I I I I I I I I I I I I I I I I I...

Страница 32: ...I I I I I I I I Model 625A I 098 7042 76Z03 SIDE a EJ ITZ03 I H V PLATE TRANSFORM R REAR i I n Transformer Vault Figure 3 7 CZ07 Section III R20S 7840 CZOI D 0 c207 eoooo eoooo eoooo ezos C ZO TZ03 0...

Страница 33: ...4 7 R4 cs k 017 RS RI JJ 3 100 IK RGSISTORS IN 0l lv1S W 11 t l SS NOTED c Al Y c1r0Rs N 1 11cROA IRAo s vo1 rs w 1 ss NOr1 1J 00 S ARG N400S Al VSWR Protection Circuit Figure 3 9 8 JI C7 Model 625A...

Страница 34: ...ion III JO 1 FW J Pw r Cl c S 1 M ti FROM X I ltJk w 098 7042 _____________ 1 __ J 8 A2 Automatic Power Control Figure 3 9 r 1 141 i WER I J o l q q S A VO D u z N OO i ICl n 4 7 Al C TOR 4 tU v lrSS...

Страница 35: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I I...

Страница 36: ...K204 through N C Normally Close contacts of THERMAL switch S202 Lamp DS206 PA AIR indicates normal air flow and lamp DS206 FIL indicates that FIL contactor is energized After FIL contactor K204 is en...

Страница 37: ...by high reflected RF output power Relays associated with these protective functions are see schematic S 26SA a PA GRID CURRENT relay K30 l 6 VDC coil I b H V PA PLATE CURRENT relay K302 6 VDC coil c...

Страница 38: ...en third register relay K309 is energized it will latch and energize overload aux relay K310 which will remove plate ON condition permanently Relay K309 also de energizes 30 second TD clearing timer I...

Страница 39: ...ading on a directional coupler connected to Jl0l Capacitor Cl02 which is available as a front panel control is then simply tuned for maximum PA grid current in the field Plate voltage 7500V is applied...

Страница 40: ...ower rheostat in the DRIVER screen voltage supply See Model 602A instruction book The power supply voltage required to operate the automatic power control module A2 is furnished by T204 through Power...

Страница 41: ...ive Periodical ly as determined by their condition the filters should be cleaned to ensure a free flow of clean air through the unit Remove the filters and immerse and agitate them in hot soapy water...

Страница 42: ...erminal TB302 14 on control panel c Energize 25V adjustable power supply and adjust its output for an indication of 950 MA as observed on PA GRID CURRENT meter M204 d Adjust potentiometer R302 to the...

Страница 43: ...and adjust power trim S5 below the desired minimum output power g Turn ON switch S212 and turn RAISE control R4 CW until desired minimum output is obtained This completes the adjustment procedure NOI...

Страница 44: ...order a part not listed in paragraph 6 3 of this section give a complete description of the part including function and location All parts should be ordered from PARTS LOCATION SPARTA ELECTRONIC CORP...

Страница 45: ...Division of Mc Grow Edison Company Globe Union Inc Centralab Division Phelps Dodge Comm Co Chicago Miniature Lamp Works Cinch Mfg Co Howard B Jones Division Dialight Corporation Erie Tech Products Hei...

Страница 46: ...kv Capacitor electrolytic 112 1430 56289 2600 mfd S0V Circuit Breaker 240V 20A 280 0095 74193 Circuit Breaker 3ph 240V 280 0091 74193 125A Rectifier diode lSkv SA 161 1200 Amperex r1 Directional coup...

Страница 47: ...ovement 368 9169 32171 0 110 Power 1 to 3 1 VSWR scale Plug 286 1377 01 27264 Resistor WW 50 225W 131 0377 44655 Not used Resistor WW 25K SOW 131 0281 44655 Resistor WW 100K 225W 131 0400 01 44655 Not...

Страница 48: ...89 Push button NC w guard 296 0300 02 81073 Guard push button switch 302 0014 02 81073 Switch rotary 8 poles 2 pos 295 0006 71590 non shorting Switch lever 2PDT 296 0421 09 82389 Switch lever 4 poles...

Страница 49: ...Capacitor Tantalum 104 0010 29505 l0mf 35V Same as C304 Same as C311 Same as C304 Capacitor lO00mfd 112 0009 50V Diode rectifier 161 0007 04713 Diode Zener 5 lV 161 0022 04713 lW Diode rectifier brid...

Страница 50: ...DER AND OVERLOAD PROTECTION CIRCUITS Cont d SPARTA PART DESIG DESCRIPTION NUMBER MFR T301 Transformer prim 115 81095 sec 20V 300 MA TB301 TB302 Terminal block 20 terminals 71785 Q301 thru Transistor 1...

Страница 51: ...4173 23265 assembly to 1 5 8 line Connector output anchor 022 4174 23265 assembly to 3 1 8 line Connectors BNC 287 0034 01 02660 Inductor input 022 4170 23265 Inductor input 022 4171 23265 Inductor pl...

Страница 52: ...n transformers reactors and filter chokes carry an extended warranty of 50 of the replacement cost being allowed should failure occur during the second year The foregoing express warranty does not app...

Страница 53: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I...

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