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ORDER RD7906-1699C Service Manual Radio RF-2900LBS FM-AM 6-Band Portable Radio SPECIFICATIONS Power Output: 3W DC Maximum Frequency Range: 150—410 kHz (2000—731m) Power Source: 50-60 Hz or 525—1610 kHz (571.86m) 9V (Six "D" Size Flashlight Batteries) 3.2—8 MHz (93.8--037.5m) (National I-JM-I or equivalent) 8—16...
RF-2900LBS LOCATION OF CONTROLS COMPONENTS CONTROLS Preselector Switch Band Selector Preselector Preselector Tuning Control Radio On/Off Switch Light Switch Bandwidth Switch O Tuning Dial @ Tuning/Battery Indicator O Digital Frequency Counter @ Band Selector O Digital Display Switch @ SW Calibrator...
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Dial Scale Gear remove—. Remove—. Shown in fig— Procedure Knob .........(S)x2 Screw (3 x 10) Preselect Circuit Board Screw (3 x 16) . Unsolder Indicator Turn the tuning knob fully counter-clockwise. Fig. 13 Turn the tuning capacitor shaft fully counter-clockwise. Catch Start Point...
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RF-2900LBS Remove—. Shown in fig—. remove—. Procedure Knob Preselect Circuit Board Screw (3 x 10) Screw (3 x 16) Unsolder Indicator Turn the tuning knob fully counter-clockwise. Turn the tuning capacitor shaft fully counter-clockwise. Turn the tuning shaft fully counter-clockwise.
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RF-2900LBS RF-2900LB RF-2900LBS RF-2900LBS SCHEMATIC DIAGRAM MODEL Notes Band switch in "FM" position. Sz-t, Sz-2.• Digital display switch in "OFF" position. Sa-t, S:-z.• BFO switch in "OFF" position. RVDR%äRlEB MAi50 2Sii38 2Sii38 AN7i10 2sci45 Rvosi113 RVDéi113 2SCi28 MAi50 2"49 2SCl'359...
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RF-2900LBS RF-2900LBS RF-2900LBS SCHEMATIC DIAGRAM MODEL RF-2900LBS AN7i11 RVDki162C RVDDsi1 2Sii38 Rvosi113 RVDRDiRIEB MAi"50 2S[iå67 MAi50 ÅN7i10 2Sdi45 2SC1i5 Rvosb11 2SAå38 2SAi38 2SCä28 2SC945 2SC945 2SB173 RVDEOA0105T 2SC1568 2Si4 2S8544 & eM,AW REGu'ATOÄ REGULATOR REGULA r OR POVER PITCH REGULATOR SSg DET &...
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MESSGERÄT SIGNALGENERATOR oder RF-2900LBS DEUTSCH (RÖHREN_ WEL- WOBBELGENERATOR STELLUNG LEN- ABSTIMMREGLERS VOLTMETER ABGLEICH BEMERKUNGEN BAND ANSCHLÜSSE FREQUENZ Oder OSZILLOSKOP) TECHNISCHE OATEN Tonausgangsleistung max. LW-HF-ABGLEICH Frequenzbereich: 87,5-108 Wechselstrom 110-125 V/220-240 150-410 kHz (2000-731 m) Stromversorgung Ausgangsleist- einem Draht L118 (LW- maximaie 50—60 Hz Oder...
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Verzögerte A.V.R. ABGLEICH BFO-ABGLEICH SIGNALGENERATOR MESSGERÄT ABGLEICH BEMERKUNGEN WEL- SIGNALGENERATOR oder STELLUNG (ROHREN_ ANSCHLÜSSE FREQUENZ LEN- WOBBELGENERATOR ABSTIM- VOLTMETER ABGLEICH BEMERKUNGEN BAND MREGLERS Oder ANSCHLÜSSE FREQUENZ Den Signalgenerator auf 3,5 MHz einstellen (30% OSZILLOSKOP) • Über einen Keramik- moduliert, Modulationsfrequenz 400 Hz).
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POSITION INDICATE-UR GENERATEUR ETALONNE FRANCAIS RF-2900LBS L'AIGUILLE (VOLTMETRE BANDE GENERATE-UR DE BALAYAGE REGLAGE OBSERVATIONS LE CADRAN OSCILLOSCOPE) BRANCHEMENTS FREQUENCE SPECIFICATIONS ALIGNEMENT HF sur Puissance de sortie: 3 W DC Maximum Gamme de fréquence: Faire boucle Régler pour une Voltmétre branché...
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ALIGNEMENT C.A.G.R. ALIGNEMENT GENERATE-UR ETALONNE REGLAGE OBSERVATIONS INDICATEUR GENERATEUR ETALONNE POSITION BANDE GENERATEUR DE BALAYAGE L'AIGUILLE (VOLTMETRE REGLAGE OBSERVATIONS BRANCHEMENTS FREOUENCE LE CADRAN OSCILLOSCOPE) BRANCHEMENTS FREQUENCE Régler le générateur étalonné 3,5 MHz • Brancher å la borne ALIGNEMENT BFO Remarque: Mettre le commutateur de largeur de bande å...
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CIRCUIT BOARD WIRIN BATTERY T401 c320 Ld01 VAR'ABLE CAPACITOR D-402 JACK VCYO' VC3'2 I"RW C405 R3,'6 1234 ANTENNA VOLTAGE SELECTOR O TOFREQUENCY COUNTER O SWITCH EARTH FARTH FM/AM ANTENNA 8162 , SWEC Lib2 Tiff CD06 -',L'06 022* cr,07 Rg6. c' CT102 : 'VC/O R'20 Rise;...
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RF-2900LBS RF-2900LBS ALIGNMENT TUNE/BATT METER ADJUSTMENT 1. RADIO RECEIVER SETTING REMARKS • Set band switch to MW. • Adjust R129 so that TUNING SW3-RF ALIGNMENT • Set volume control MIN, pointer of meter stays (11) 16 MHz 16 MHz Ltt4(SW3 OSC coil) •...
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ALIGNMENT POINTS SW3 ANT LW ANT CABINET PARTS LW ANT MW ANT 28MHZ 150kHz 400kHz 550kHz SW2 ANT FM OSC swa ANT 87.5MHz K2-6 K2-4 FM OSC SW 2nd OSC coil K2-2 106MHz K2-2 2MHz K2-7 K2-3 FM TUNE 90MHz SW3OSC SWI OSC 16MHZ 8MHZ...
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•REPLACEMENT PARTS -Model RF-2900LBS (RD7906-1699C) NOTES: A indicates that only parts specified by the manufacturer be used for safety. S mark is service standard parts and may differ from production parts. Ref. Part Part Name & Description Remarks INTEGRATED CIRCUIT,...
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Remarks Part Name & Description Part Ref. Description Remarks Ref. Part Part Name & Swi tch Radio/ Phono RSS2BO Oscillator coil, L116 RL03M48 Voltage Selector RSR2A01Z Oscillator Coil, L117 RL02M14 Preselect RSS2A07Z 1,118 RL01M8 oscillator Coil, Preselect Band RSR5D03Z L119 RL09M9 1.305 RLÄIB2...
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Remarks Part Name & Description Ref. part Remarks Part Name & Description Ref. part C138,143 211,224 RI 35 ERD25TJ154 1/4W Carbon Semi—conductor ECPVD683MD 0.068 R115,117 , 210,237, C305,307 ECFVD104MD ERD25TJ224 Mica C153 ECMS05101JH RI 33 ERD25TJ273 ECMS05121JH C151,191 R116 , 212 ERD25TJ334 C192 ECMS05680JH...
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Remarks Description Part Name Ref. Part Ref. Part Part Name & Description Remarks XTN3+8B Screw Ci rc1ip XUC2FT RHG886Z Rubber Speaker XUC5FT XTN3+25B Screw XUC6FT XYNR26+C5 Screw ELECTRICAL PARTS XNS8 Dial Scale Ass 'y RYDF2900LBSX Washer XWS8AW Dial Chassis Ass 'y RXEP2800M XSN26+4 Screw...
Service Manual Radio RF-2900LBS FM-AM 6-Band Portable Radio (Gray Face) * This service manual includes only the changes of the RF-2900LBS service manual (ORDER NO. RD7906-1699C). * This manual should be filed with the service manual model RF-2900LBS (ORDER NO. RD7906-1699C).