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Service
RX.1750LS
MECHANISM
SPECIFICATIONS
Power Requirement:
Power Output:
Frequency Range:
Recording System:
Tape Speed.
Wow
and Flutter:
Program Time:
Track System:
Input:
Panasonic
FM/LW/MW/SW
SERIES
230-v250V, 50/60Hz
Power consumption;
27 W
Battery, 12V (eight-UM-I, D size dry
batteries)
Car/boat
battery; with optional
boat adaptor
RP-952)
low
max.)
70-oII,OOOHz (with normal tape)
70q3,OOOHz
(with croz tape)
70M3,OOOHz (with FeCr tape)
AC bias, MAGNET erase
4.8cmls, (17/3 ips)
0.35% (RMS)
I hour with C-60 cassette
tape
4-track stereo recording
and playback
MIC; sensitivity 0.32mV/appIicabIe
microphone impedance 200v600Q
(recommended microphone RP-8135)
DC IN; 132V
Specifications
are subject to change without
Manual
Stereo
Radio
Cassette
Output:
RECIPB
Connection:
Speaker:
car/
Radio Frequency
Intermediate
Frequency:
Sensitivity:
Dimensions:
Weight:
Matsushita Electric TradingCo., Ltd.
ORDER NO. RD7912-5070C
Radio
RX-5120LS
EXT sp;
3N8Q
HEADPHONES;
8Q
5P DIN type • IN; 0.32mV (2.7kQ over)
OUT; 0.36V (4.7kQ under)
Woofer; 12cm (423/32") PM D)namic
speaker (3Q)
Tweeter; 3cm (17/32") P M Dyramic
speaker (200Q)
FM; 87.&ü108MHz
Range:
LW;
1450285kHz
(2060-u150 m)
MW;
SW; 5.9u18MHz
(50&u16.7Tl)
FM;
10.7MHz
AM;
(LWIMWISW);
455kHz
FM; 5gV150 mw output
LW; 160gV/m/50mW
MW; 75gV/m/50mW output
SW; 6gV/50mW
output
467 mm(WpQ61
5.2kg (11 lb. 7 oz.) without batteries
notice.
P.O. Box 288, Central Gaka
Cassette
(577nu186r-n)
output
Japan
Inhaltsverzeichnis
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Inhaltszusammenfassung für Panasonic RX-5120LS

  • Seite 1 ORDER NO. RD7912-5070C Service Manual Radio Cassette RX-5120LS FM/LW/MW/SW Stereo Radio Cassette RX.1750LS MECHANISM SERIES SPECIFICATIONS EXT sp; 3N8Q Power Requirement: Output: HEADPHONES; 230-v250V, 50/60Hz 5P DIN type • IN; 0.32mV (2.7kQ over) RECIPB Connection: Power consumption; 27 W OUT; 0.36V (4.7kQ under)
  • Seite 2 RX.5120LS LOCATION OF CONTROLS AND COMPONENTS [Fig. 1] DIN connection jack FM stereo indicator Tape selector IN 0.32mV (2.7kQ over) OUT 0.36V A7kQ under) Built-in microphones Meter selector Headphone jack (8Q) Tuning control Function selector Tweeters (3cm, 200Q) AC socket Eject button Car adaptor connection jack (DC IN 13.2V) Band...
  • Seite 3 .5120LS RX.5120LS DISASSEMBLY INSTRUCTIONS DIAL THREADING DIAL CORD LENGTH: 2000mm 1 turn 4 turns o cec • (é) [Fig. 2] [Fig. 4] [Fig. 3] 4turns 4 turns [Fig. 9] [Fig. 71 [Fig. 5] [Fig. 61 1 turn Procedure To remove —.
  • Seite 4 RX.5120LS RX.5120LS SCHEMATIC DIAGRAM (RADIO CIRCUIT) MODEL RX.5120LS RVIBlÄh330 RVIUP\i018CE 2-i'Ä90 MAi50 2SC829 RVDKB167 2SC829 AN7213 AM DET METER IF AMP IF AMP FM RF D. AGC CONV & IF AMP TELESCOPE 3.42',' Rn 00K K27P ANTENNAI 'CF2 R29fK cz 7 27K OAåo AM METER...
  • Seite 5 RX.5120LS RX-5120LS ALIGNMENTS RADIO CIRCUIT BOARD ALIGNMENT INSTRUCTION READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT 1. Set volume control to maximum, 4, Set tape/radio/sleep selector to radio. 2. Set tone control to center. 5. Set power source voltage to 12V DC. 3. Set band switch to MW, LW, SW or FM.
  • Seite 6 RX-5120LS RX-5120LS RX-5120LS RX-5120LS ALIGNMENTS ALIGNMENT INSTRUCTION LED METER ALIGNMENT READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT ITEM ADJUSTMENT REMARKS 1. Set volume control to maximum. 4. Set tape/radio/sleep selector to radio. 1. supply DC 85V throu h the DC IN jack.
  • Seite 7 RX.5120LS RX.5120 RX.5120LS RX-5120LS AUDIO CIRCUIT BOARD 0101 0201 0302 Sf03 c.7V $102 12.ov lea 0 mA POWER CIRCUIT BOARD 9.OV Cao - Coo — E 8.34V IC302 2342 REC & PLAYBACK 12v ilc: 3.2v ;PCfi2 '21 6.4vihl 0.5v Cid8 R;...
  • Seite 8 RX.5120LS RX-5120 RX-5120LS RX.5120LS AUDIO CIRCUIT BOARD 0101 0201 0302 st03 0.7V Sf02 12.ov POWER CIRCUIT BOARD g.ov C2J0 — !C302 REC & PLAYBACK 3.2V jci/2 0240 i R33? •cid8 2 6.4vt11' 0.5v Ci2Å ov '12i 3.1v 22/0 Ci35 c2c9 St 1.4 V , 14, 1.46 V...
  • Seite 9 RX-5120LS RX-5120LS 20LS 0101 Notes: 0201 1. S101-1N101-9 .Record/playback switch(shown in playback position). 0.7V 2. S102-1nuS1026 Functionswitch (shownin tape position). I...TAPE, 2...RADlO 3. S103 .Meter switch (shown in OFF position). 1.. .OFF, BATTERY/TUNING, LEVEL POWER CIRCUIT BOARD 4. S104-1NS104-3 ..Tapeselect switch (shownin normalposition).
  • Seite 10 RX.5120LS RX.5120LS SCHEMATIC DIAGRAM (AUDIO CIRCUIT) MODEL RX.5120LS LN230RÅ To RadioBlock STEREO 2St02-8 R2t7 10K SIU-4 Stoa-f ct02 50Vt R309470 R/fi 10K 50Vf 0304 (Lch)— RIP HEAD Sf02-f Rf07 (Rch)-- cm 50Vf sot-3 E. HEAD S103 Rm8/ K R205f00 C 23( Drot K33P C13f...
  • Seite 11 RX-5120LS RX.5120LS SCHEMATICDIAGRAM(AUDIOCIRCUIT)MODEL RX.5120LS LNhiRÅ To RadioBlock STEREO 1234 2St02-8 R2f7 10K Su-4 Stu-f C'07 ct02 R!" 10K 0304 Rtf6 (Lch)-• RIP HEAD Sf02-f Rf07 (Rch)-- Cm 50Vf st0f-3 E. HEAD Rm8/5KR205f00 C 231 f5K+ D20f K33P Cf3f [SITO-¯ 1.46...
  • Seite 12 RX.5120LS RX-5120LS SCHEMATIC DIAGRAM (AUDIO CIRCUIT) MODEL RX-5120LS LN230RA To RadioBlock STEREO 2St02-8 R2f7 10K Siu-4 S104-{ Cf02 50Vf C 07 Rff7 10K R309470 0304 C3.9: R/P HEAD Sf02-f (Rch)-- Cm50Vf Rf07 10.6 Sid-3 E. HEAD Rm8/5K R205100 15K +...
  • Seite 13 RX.5120LS RX.5120LS RX.5120LS \GRAM (AUDIO CIRCUIT) MODEL RX.5120LS 0305—31' LN230RA LN230RE To RadioBlock STEREO METER D3C7Dan 0305 D" Dstl 2Sf02-8 R2f710K S104-f ct02 50Vt CIOI R,'t7 10K [3930 L7.4vJ 15.80 rs.82v] [7.0] to.230 IC 303 LB1405 IC303 Sf02-f Rf07 cm 50Vf 12.83vJ t283ij 10.6'.}) lp.12VJ [0.120[8.950 METER...
  • Seite 14: Wiring Connection

    RX.5120LS RX-5120LS RX.5120LS RX.5120L DIAGRAM MODEL RX-5120LS WIRING CONNECTION TELESCOPIC EXT ANTENNA LED METER CIRCUIT BOARD ANTENNA (EARTH) ANTENNA TERMINAL ST. EYE CIRCUIT JACK TONE CIRCUIT BOARD BOARD AUDIO CIRCUIT BOARD CONDENSER MIC (R Cil) (Lch) RADIO CIRCUIT BOARD (Lok)
  • Seite 15 RX.5120LS RX.5120LS .5120LS DIAGRAM MODEL RX.5120LS LED METER CIRCUIT BOARD ST. EYE JACK CIRCUIT BOARD AUDIO CIRCUIT BOARD CONDENSER (Lch) (Ld) TVEETER (Rch) zoon 20012 WOOFER '2cm (4B') S 09 VOLTA&E SELECTOR Brown POWERCIRCUIT BOARD MOTOR MOTOR SMTCH POWER TRANSFORMER ÅC]Å...
  • Seite 16: Parts Location

    RX.5120L ELECTRICAL PARTS LOCATION E5-1 5-2 E37, E5-4 E5-1, 52 E39, 40 [Fig. 17] E9— E12Ni E3a, 34, 35 E36 E29 E30 [Fig. 16] [Fig. 18] E41, E42 EE14 {E13 I E 17 [Fig. 20] [Fig. 19]...
  • Seite 17 RX-5120LS D(PLODED VIEWS [Fig. 21] Specification 400±60gr Pressure of pressure roller 50±20gr Takeup tension logr Tension Of detect plece Less than 0350/0 (RMS) & flutter Tape speed fluctuation...
  • Seite 18 RX.5120LS M 14 —M47 [Fig. 221...
  • Seite 19: Parts List

    • REPLACEMENT PARTS LIST Model RX.5120LS Remarks Part Name & Description Ref. Part (RD7912-5070C) Spr ing, Fast Forward QBN1477 Fast Forward Gear QXG1023 indicates that only parts specified by the manufacturer be used for safety. NOTES: Spring, Operation QBP1664 S mark is service standard parts and may differ...
  • Seite 20 Remarks Description Part Name & Ref. Part Part Name & Description Remarks Ref. Part switch, AC/DC Refer Antenna Coil, QLA3MB Selector RSR4A01W Voltage S109 RLD4Y44 Tuning Coil, RL04Y43 Oscillator Coil, RL01M4 Jack, EXT Mic J3,4 RJJID2Z RL02M14 RJJ87Y RL03M31 Headphone RJJIE2Z Trap Coil...
  • Seite 21 Ref. No. Part No. Part Name& Description Remarks Remarks Ref. Part Part Name & Description Mica RI 10, 210,214, 305, ECMS05221JH ERD25TJ222 1/4W 9,204,219 Carbon Semi—Conductor R325 ERD25TJ562 ECFVD223MD 0.022 R106,125 206,225,304 C42, , 339 ERD25TJ682 ECFVD4 7 3MD 0.047 R131 ERD25TJ822 ECFVDIO...
  • Seite 22 Remarks Part Name & Description Ref. Part Part Name & Description Remarks Ref. Part Shaft, Band selector K2-5 RJF1065Z Terminal, RDF831Z Circlip XUC5FT K2-6 RKX178Z Arm, Handle Screw, Heat Sink M •tg XSN3+12S RKX179Z Handle washer XWG3 K2-8 QBP1817 Stopper, Washer XWT4 K2-9...
  • Seite 23 CT6 (LW-Oszil- Die maximale Ausgangsleistung RX-5120LS DEUTSCH 285 kHz latortrimmer) CT4 (LW-Anten- einstellen. [166 mm 285 kHz Schritte (2)und (3) nentrimmer) wiederholen. (• I) Nachbeendetem Abgleichist der Antennenspulenkörper mit Wachszu befestigen. R TECHNISHE DATEN MW.HF-ABGLEICH 5 polige DIN-Buchse Stromversorgung: Wechselstrom: 100-v11011&v127/...
  • Seite 24: Darstellung

    ABGLEICH DER LEUCHTDIODEN.ANZEIGE CT6 (LW-Oszil. Die maximale 285 kHz latortrimmer) Ausgangsleistung PRÜFUNG 285 kHz [166 mm CT4 (LW-Anten. EINSTELLUNG BEMERKUNGEN einstellen. nentrimmer) Schritte (2) und (3) I) Über die Gleichstrom•EingangsbuchseDC In eine Gleichspannung von wiederholen. 8,5V Zuführen. Batterieprüfung VR301 (i I) Nach beendetem Abgleich ist der Antennenspulenkörper mit Wachs zu befestigen. 2) Spannungskonstanthalter (VR301) so einstellen;...
  • Seite 25 u ALIGNEME CT6 (trimmer Régler pour une sortie maximum. d'oscillateur 285 kHz RX.5120LS FRANCAIS ELEM Refaire les étapes 285 kHz [166 mm CT4 (trimmer (617/32")) d'antenne GO) Contröle (01)ScellerIa bobined'antenneå Ia cire aprésavoir achevél'alignement. ALIGNEMENT HF sur PO ALIGNEME SPECIFICATIONS INDICATEUR GENERATEUR ETALONNE...
  • Seite 26 ALIGNEMENTS DES VU.METERS A DEL CT6 (trimmer Régler pour une 285 kHz d'oscillateur sortie maximum. 285 kHz ELEMENT (166 mm Refaire Ies étapes REGI-AGE REMARQUES CT4 (trimmer Alimenter par un courant continu de 8.5V au niveau du Jack DC IN. d'antenne GO) Contråle des piles VR301...

Inhaltsverzeichnis