Bang & Olufsen Beomaster 4500 Serviceanleitung
Inhaltszusammenfassung für Bang & Olufsen Beomaster 4500
- Seite 1 • Beomaster 4500 Type 2961, 2962, 2963, 2964, 2965 BEOMASTER 3500 Type 2966-2967-2968-2969-2970 SERVICEANVISNING SERVICE MANUAL...
- Seite 2 Bang&Olufsen diagr. A AM (LW/MW) . Modules page 2-2 diagr. AM (MW) page 2-1 diagr. page 2-2 diagr. B, C Amplifier & Power Supply page 2-3, 2-4 Microcomputer diagr. page 2-5 diagr. IR Receiver page 2-5 diagr. Operation panel page 2-6 Socket Panel ..
- Seite 3 Bang&OIufsen TECHNICAL SPECIFICATIONS Long-term max. output power IEC 2 x 55 watts/8 ohms Harmonic distortion DIN/IEC Power output 20-20,000 Hz IHF 2 x 20 watts/8 ohms Total harmonic distortion at 20 watts 20-20,000 Dynamic headroom 1.6 dB/8 ohms Intermodulation Response vs frequency: Phono 20-20,000 Hz ±1.5...
- Seite 4 Bang&OIufsen AM tuner section: Type 2961, 2962, 150-350 kHz LW range Type 2961, 2962, 2963, 2964, 2965 520-1610 kHz MW range 80 pv LW sensitivity 20 dB S/N ratio 60 pv MW sensitivity 20 dB SIN ratio Type 2961 220 v Power supply Type 2962 240 V...
- Seite 5 (Beolink system, situation tion 1), skal Beomaster 4500 stilles i option 4. 1), the Beomaster 4500 must be set to option 4. Cifrene 5 og 6, som kommer frem på displayet ved siden af det valgte option-nummer...
- Seite 6 TAPE2.1 stilling CD eller PHONO har De may be, to select the option of your følgende tilslutningsmuligheder: choice. PH/TP2 Option CD: When the Beomaster 4500 leaves the factory, it is Tilslutning af Beogram 4500. set to option TAPE2. set to option CD or...
- Seite 7 Werkseitig ist der Beomaster 4500 auf 1.5 einge- sette å la prise AUX/TV, il vous suffit de changer le stellt. réglage de la prise. Le Beomaster 4500 doit étre en veille pendant cette opération. Buchsen PH/TP2 AUX/TV können für...
- Seite 8 Bang&Olufsen DIAGRAMFORKLARING EXPLANATION OF DIAGRAM På diagrammerne er der angivet typenumre på tran- Type numbers of transistors and ICs are indicated on the diagrams. sistorer og IC'er. Hvis positionsnummeret er efter- fulgt af en stjerne, skal reservedelsnummeret altid If the position number is followed by an asterisk the benyttes, da denne komponent er specielt udvalgt, spare part number must always be used because the f.eks.
- Seite 9 Bang&OIufsen STELSYMBOLER GROUND SYMBOLS Deranvendes 3 forskelligestelsymboler i apparatet. Three different ground symbols are used in the set. = Stel = Ground Signalstel — Signal ground — Chassis Chassis MÅLEBETINGELSER MEASURING CONDITIONS Alle DC-spændinger er målt i forhold til stel med et All DC voltages have been measured in relation to voltmeter med en indgangsmodstandpå...
- Seite 10 Bang&OIufsen ERLÄUTERUNGEN SCHALTBILD NOTICE EXPLICATIVE SCHEMAS Auf den Schältbildern sind Typen-Nummern für Sur les schémas, les numéros de types sont indi- quées pour les transistors et les circuits imprimés. Transistoren und IC's angegeben. Wenn auf die Positionsnummer ein Stern folgt, ist Si le numéro de position est suivi par un astérisque, il est impératif d'utiliser le numéro de Ia piéce de...
- Seite 11 1-10 Bang&OIufsen Versorgungsspannungen Tensions d'alimentation Alle Versorgungsspannungen in den Schaltbildern Sur les schémas tous les tensions d'alimentation werden mit einem Pfeil sowie einer Indikation sont munies d'une fléche et d'une indication Spannung angegeben. voltage. Beispiel: Exemple: Neben der Netzspannung steht Z.B. 7 CON. Dies A cöté...
- Seite 12 Bang&OIufsen 1-11 ADVARSEL' LITHIUMBATTERI — EKSPLOSIONSFARE UOSKIFTNING MA KUN FORE TAGES AF EN SAGKYNOIG, BESKREVET SERVICE MANUAL. WARNING' LITHIUM BATTERY — RISK EXPLOSION TO BE REPLACED OUALIFIED SERVICEMAN ONLY DESCRIBED IN THE SERVICE MANUAL ATTENTION ACCUMULATEUR AU LITHIUM ACHTUNG LITHIUM-BATTERIEN Kurzschluß...
- Seite 13 1-11 PCB2 —ere 49k Cu CJkiee R7Ø PCBI - R2fCø...
- Seite 14 DIAGRAM FOR FM TUNER & MW SECTION 8050111 17 •80501 •TYPE 2964 ONLY BF995 BF 995 '103 c 16 220p TUNING VOLTAGE 0.5p 220 p 220p | 800 052— P34-8 p34— I TUNING VOLTAGE I oon 1.6 A1 330p I oon 3A423 I oon P34-4...
- Seite 15 Bang&OIufsen The FM TUNER is a single unit. With failure in this unit we recomment replacing the whole unit. However the part nos. of semi-conductors are in the list of electrical parts. P34-7 P34-2 P34-J BCB47B R 49 I OOK BC849B 1 2VA DET .
- Seite 16 Bang&Olufsen DIAGRAM A (FM & AM Section) 2 800 056 1060 TYPE 2964 12VA AGC TUNER TUNER FRONT 47 Op 5.7V STOP 1865 A2 22 I On FM IF DETECTOR BUFFER SIGNAL STREN OUADRA o nx-J TURE METER LIMITER 10.7 2.2V 10.7 150K...
- Seite 17 P30- 230-2 .RlOt L 132 • 19.5 1 82 680p C29 220 n P26-3 BC 848B 101/102 ONLY MOUNT TYPE 2963 C5/76 TYPE 2963 3401 STEREO P26- DECODER MUTI CHANGE OVER L 622 DECODER 220,-, c 10 P26-4 848B op C24 TRIO BC848C 12VB...
- Seite 18 DIAGRAM B (Input Select, Volume &Tone Control and RIAA Amplfier) 8002953 3 PRG . MIJTE -12V CONTROL 220p TR30 MPSA i 72 9164 2209 I oop INPUT SELECT /TP2 RIGHT 220p p 17-1 M/FM RIGHT -12V -12V A ux R 127 p 15—2 p15-4 TR31...
- Seite 19 Bang&Olufsen V-12V -i2V 86 C 455B C115 -12V 4558 455B 4558 1 12 LM 833N 150p 470 p c 104 c 13 R 124 470n RI 3 (9CON) 7537 VOLUME TONE CONTROL RIGHT -12V ( 9CON) I oon 680n -12V IC4B6 4558 C117...
- Seite 20 Bang&OIufsen DIAGRAM C (Power Supply & Output Amplifier) 3 8002953 POWER SUPPLY 50/60 p 150 P22-6 BC547B RI 34 ( 2CON ) 3.4 V 220 p 47 v TRi2 BC547B p21-6 5.4V 220n p 23 680p ( ICON) 33 0 220m BC547B 220n...
- Seite 21 OUTPUT AMPLIFIER POWER FAIL [)48 31.6v c 79 p 15- TR23 BC557B I oop TR26 BC547B 4151 BC546B 78002982 '165 RIGHT p 16—2 1 05 p 16—1 220m 220n €6 RBO -32. I On -33V p 16—4 5463 I On —...
- Seite 22 DIAGRAM D (Microcomputer and IR In/Out) 8002972 PCB5, IR In/Out 5VA Ioon —6 DATA LINK 825 • p i _7 c 128 DATA LINK C127 DATA C' 40 DATA C 138 820p DATA C! 39 B20p €52 KEY DATA O C14i 820p IR14...
- Seite 23 Bang&Olufsen PCB drawing for PCB4 see page 2-7 PL.-SPL 8K 2 Cl 30 CIIO P3 -2 C547B STROBE DATA C112 ENABLE 470p R 48 DATA OUT 10 23 KEY 3 19 ENABLE C113 BC547 TEST 470p DATA 29 Cl'4 470p P3 -5 470 A 470p...
- Seite 24 Bang&Olufsen DIAGRAM E (Operation Panel) PCBdrawingfor PCB6see page2-8 6 8001106 3309 3309 330p TRIM I oon i 29 BF840 TRIO" TRIIA3 TR12A5 BFB40 c 12 ENABLE TR14A' TR15Ab TR16AB A 13 I oon TR18A9 TR20A' TR17A7 3FB40 BF840 12 F SOUND TR21AiI TR24A10...
- Seite 25 I DPIA3 EIBBH DISP DATA P8-l BRIGHTFESS DATA I On LA TCHES SHIFT REGISTE REGISTE 03 1 I oop ,CLP OUTPUT P INS LOAD RESET ENABLE PB-3 P8-4 p8—2...
- Seite 26 BLOCK DIAGRAM CONTROL SYSTEM RIGHT DATA LEFT TUNING CONTROL DATA 21C3 41Cl 256X8 8032 DATA LINK DATA BUFFER 32-39 2-19 a TR2 3-1( TRANSMIT IR RECEIVER RESET 5TRl-7 256X8RAM 4TR416 PCF d ECEIVER R TRASMITTER ON/OFF 51cn01 5TR8 5TRlOl/102/l PCB 4, Microcomputer...
- Seite 27 Bang&Olufsen KEYBOARD 23-24 DISPLAY 22 DRIVER 61CJ 9—10 INPUT VOLUMEN SELEC TONE CONTROL 31CI 31C2 41C4 MUTE 256X8 12-19 PRG . MUTE 8155-2 I ON/OTF 3125/16/34 OUTPUT AMPU . 3TR'9 SPEAK REL A Y 3TR 13/33 ON/OFF RESET 3RL4 POWER 3TR24/3 ±33V 4C28...
- Seite 28 Bang&OIufsen BLOCK DIAGRAM SIGNAL PATH FM TUNER FY DETECTCQ STEREO INPUT 21Ci DECODER SELECT 21C2 31Cl 31C7 VOLUME CONTROL 3TR30 CONTROL (PLL) 2TR6 21C3 pH/TP2 PRG . MUTE L 2101 PLL DATA FRTc. POWER PLLCLP wc LINK TUNER DETECTOR PCB6, Operation Panel PIB4 .01 a...
- Seite 29 2TR4/ 14/23/26 LUME OUTPUT WROL 2/5/6 TR5/ 6/33 MUTE SPEAKER EPLEAY I ON/$F R5å...
- Seite 30 LIST OF ELECTRICAL PARTS a-cG Resistors not referred to are standard, see page 3-8 A indicates that static electricity may destroy the component * Specially selected or adapted sample 'PCB 01, 8002975 8340757 LA 1245 AM (LW/MW) Type 2961, 2962 8320757 BC 818-40 8320611...
- Seite 31 Bang&Olufsen 4100235 680pF 5% 63V 4000282 180pF 5% 50V 4200525 22pF 20% IOV 4010132 10% 50V 4100238 C55- 3.3nF 5% 63V 4000284 330pF 5% 50V 4100260 2.2nF 4200630 0.68pF 4010157 10nF 10pF 22pF 20% IOV 4200510 4200525 6.8nF 2.5% 63V C60- 4100261 4010132...
- Seite 32 Bang&Olufsen D12- 8300058 4148 1)'22- 8300058 4148 1)13 1)14 8300313 BZX83B 8300487 KBU6D 1)15 8300541 1)25 8300058 4148 8300058 4148 8300212 1 N 4448 8300023 4002 8300023 4002 1)18 8300058 4148 8300128 BZX83C 8300023 4002 DIOI- 8300482 LL 4148 8300058 4148 D116 8300169...
- Seite 33 Bang&OIufsen 0---cæ Resistors not referred to are standard, see page 3-8 A indicates that static electricity may destroy the component * Specially selected or adapted sample 6850165 Coil Plug 6pol. Plug 5poI. 7220428 7220689 Din 7pol, 7220319 Plug 8poI. P25- 7210418 CD-TPI-AUX/TV 7220427...
- Seite 34 Bang&OIufsen A-cp- Violet Resistors not referred to are standard, see page 3-8 A indicates that static electricity may destroy the component * Specially selected or adapted sample 8020578 Coil IOuH 8020342 Coil IOuH 8090075 Crystal 12.0MHz 8090078 Crystal 32.768KHz 8700027 Batteri Lithium PCB 05, 8002961...
- Seite 35 Bang&OIufsen PCB 06, 8001106 ICl- 8340780 14044 IC3A 8340467 5450N IC2A OPERATION PANEL TRI- 8320740 BF 840 TR27 8330184 Led Red D35- LL 4148 8300482 D18- 8330188 Led Green 1)43- 8300557 BYMIO D28- 8330184 22kQ o,1W 5370327 12pF 5% 50V 18pF 5% 50V 4000274 4000276...
- Seite 36 Bang&OIufsen Resistors not referred to are standard, see page 3-8 Plug 6poI. 7220470 P103 7210418 7220561 Plug 4pol. P104- 7210689 Power Link Plug 6pol. 7220486 P105 PCB 09, 8001116 8300023 4002 TRANSFORMER Type 2961, 2962, 2965 4200821 IOOOpF-20+50% 6.3V 8022296 Coil 2xO.4MH 90C1...
- Seite 37 Bang&OIufsen Standard Resistors: Resistors 2% 1/8 W x100 xlOK xlOOK xlOM 5% 1/8 W 5011623 5011647 5011218 5011227 5011241 5011256 5011267 5011730 5011624 5011648 5011669 5011681 5011689 5011694 5011707 5011625 5011649 5011219 5011682 5011490 5011257 5011708 5011626 5011650 5011670 5011683 5011242 5011258 5011709...
- Seite 38 Bang&OIufsen LIST OF MECHANICAL PARTS Modu101 8002975 AM (LW/MW) 8001052 AM (MW) Modu102 8001056 FM. Type 2961/62/63/65 8001060 FM. Type 2964 0201 7210673 Socket Modu103 8002953 Amplifier & Power Supply Heat sink 0301 2622248 Washer 0302 2819175 Spring Modu104 8002972 Microcomputer Cover top 3164713...
- Seite 41 C'O@t c43@ AM stop level RII e 10 L3 c 36 PIN 13 C24@ c 12 Ch. Separation TPII FM IF Left Right FM AF output PIN17 PIN" De tec tor PIN B PINB PIN9 MonolS tereo FM stop level Change over PIN3...
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Seite 42: Test Mode
Bang&OIufsen JUSTERINGER ADJUSTMENTS 5V forsyning 5V power supply PCB 3 Et DC-voltmeter tilsluttes 5V forsyningsspændingen Connect a DC voltmeter to the 5V power supply (the (anoden af 3D9). Spændingen skal være inden for anode of 3D9). The voltage must be in the range 4,8V-5,25V. - Seite 43 Bang&OIufsen Frequency Press: Frequency Tryk: Frekvens Tryk : Frekvens Tryk: Frekvens Press: Frequency Press: 520 KHz 87,5 MHz 150 KHz 520 KHz 87,5 MHz 160 KHz 88,0 MHz 88,0 MHz 108,0 MHz 330 KHz 1000 108,0 MHz 1000 1550 1550 KHz 350 KHz 1610 KHz 1610...
- Seite 44 Bang&OIufsen Detektor Detector Tilslut et oscilloskop til ben 8 på 21C1. Connect an oscilloscope to pin 8 of 21C1. Tilslut et DC-voltmeter mellem ben 9 på 21C1 og Connect a DC voltmeter between pin 9 of 21C1 and ben 14 på 21C1. pin 14 of 21C1.
- Seite 45 Bang&OIufsen Kortslut ben 17 på 21C3 til stel. FM stop level Connect a signal generator to the aerial input, and Drej 2R12 mod uret til stop. adjust it to 88 MHz, 10 uv EMF, KHz. Tryk 31 (88 MHz). Connect a DC voltmeter to pin 8 of 21C3. Drej 2R12 med uret til ben 8 på...
- Seite 46 Bang&OIufsen ANTENNEKREDSE MW-antennekredsene skal justeres først. Connect a sweepgenerator to the aerial input and adjust it to centre frequency 455 kHz 10 kHz. Connect an oscilloscope to pin 13 of IICI. En målesender tilsluttes antenneindgangen og ind- Press 23 (1550 kHz) and short-circuit IR16.
- Seite 47 Bang&Olufsen DISASSEMBLY ADSKILLELSE Betjeningspanel Operation panel En tynd genstand presses op i hullet mærket med Insert a thin object in the hole on the bottom which en pil på bunden. is marked with an arrow. Betjeningspanelet presses samtidig mod venstre. At the same time, push the operation panel towards left.
- Seite 48 Bund Bottom Skruerne B i bunden fiernes. Remove the screws B in the bottom. Bunden kan nu aftages. bottom can now be removed.
- Seite 49 Bang&OIufsen REPARATIONSTIPS REPAIR TIPS Reparation i tuningssystemet Repairs in the tuning system Tuningssystemet består af en tunings-IC (21C3), som The tuning system consists of a tuning IC (21C3) danner henholdsvis en FM tuningssløjfe og en AM which makes an FM tuning loop and an AM tuning tuningssløjfe.
- Seite 50 åfi 'Z80d...
- Seite 51 Bang&OIufsen 2R35 afmonteres. Remove 2R35. Tilslut en variabel DC strømforsyning til ben 8 på Connect a variable DC power supply to pin 8 of the tuneren. tuner. Tilslut en frekvenstæller til ben 19 på 21C3. Connect a frequency counter to pin 19 of 21C3. Set the receiver to FM and a frequency of 100 MHz.
- Seite 52 Skift mellem HF modtager- 20-42 Change between RF receiver frekvenser frequencies Beomaster 4500 bringes ud af »TEST-MODE« ved at afbryde netspændingen. O AM/FM display indication: The FM display indication must be adjusted after replacement of PCB4, 41C5, 4B1, 4m, 4R66, PCB2,...
- Seite 53 Bang&Olufsen Tryk STORE. Displayet vil nu vise den indtastede Press STORE. If the setting is 0K, the display shows the frequency you have entered. If the setting frekvens, hvis indstillingen er 0K. Hvis displayet viser ----, er indstillingen ikke 0K. is not 0K, the display shows - 3 Reading of RF version:...
- Seite 54 Bang&OIufsen 7 Sletning af RAM(41C5): 7 Erasure of RAM (41c5): Ved RAM-sletningen slettes alle indlæste AM og FM When the RAM is erased, all preset AM and FM programmer. Balance, bas, diskant og loudness stations are cancelled. Balance, bass, treble and bliver sat til 0 og volume bliver sat til 40.
- Seite 55 Bang&OIufsen INSULATION TEST ISOLATIONSTEST Ethvert apparat skal isolationstestes, efter at det har Each set must be insulation tested after having been dismantled. Make the test when the set has been været adskilt. Testen udføres, når apparatet samlet igen og er klar til udlevering til kunden. reassembled and is ready to be returned to the customer.
- Seite 57 3538742 Indklæbes i serviceanvisning nr. 3538715/3538716, Beomaster 4500 type 29XX. To paste into Servicemanual no. 3538715/3538716, Beomaster 4500 type 29XX. In Serviceanleitung Nr. 3538715/3538716, Beomaster 4500 Wp 29XX einkleben. A coiler le Manuel d' entretien No. 3538715/3538716, Beomaster 4500 Type 29XX.
- Seite 58 BEOMASTER 3500, TYPE 296X List of Electrical parts PCB04, 8001220 MICROCOMPUTER 8341350 IC EPROM See drawings on pages 4-2 List of Mechanical parts 9008 3458723 Top Plate 9012 3114361 Chassis Bemærk! Note: Returner mikroprocessormodulet, bestillingsnr. Return the microprocessor module, part no. 8001220 for ombytning, hvis Beomaster 3500-dis- 8001220, for replacement if the Beomaster 3500 dis- playet viser CODE.