JBL-BP1200_1-pwr-sm 维修电路原理图.pdf

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1、BP1200.1 1 CHANNEL POWER AMPLIFIER SERVICE MANUAL JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 1/2004 RadioFans.CN 收音机爱 好者资料库CONTENTS Specifications . .1 Features .2 Test Conditions and Notes . .2 Typical System Configuration (Wiring) . .3 Controls and Connections . .4

2、Bulletin JBL2004-04. .5 Amplifier Exploded View. .6 Block Diagram. .7 Parts Lists. .8 Integrated Circuit Diagrams. .14 Transistor Diagrams. .16 Printed Circuit Boards (Top View). .18 Schematic Diagrams. .20 Packaging . .32 BP1200.1 Specifications Number of Channels . . . . . . . . . . 1 4 Ohms . . .

3、 . . . . . . . . . . . . . . . . . . 600W 2 Ohms . . . . . . . . . . . . . . . . . . . . 1200W T.H.D. 4 Ohms rated Power . . . . . . . . . . . . . 0.10% Frequency Response . . . . . . . . . . . . . . . . . . 10Hz 320 Hz Signal to noise Ratio . . . . . . . . . . . . . . . . . . . 100dB Maximum Curren

4、t Draw . . . . . 114A Fuse size. . . . . . . . . . . . . . . . . . . 40A x 3 Input Sensitivity. . . . . . . . . . . . . . . 250mV 4V Minimum Speaker Impedance.1 ohm External Dimensions Length . . . . . . . . . . . . . . . 14 13/16 (376mm) Width . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

5、0 3/16 (274mm) Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 11/16 (68mm) JBL continually strives to improve its products. New materials, production methods and design refinements are introduced into existing models without notice as a routine expression of our design philosophy. For

6、 this reason, BP Series Automotive Amplifiers may differ in some respects from their published specifications and descriptions, but will always equal or exceed the original specifications unless otherwise stated. BP1200.1 RadioFans.CN 收音机爱 好者资料库Test Conditions and Notes1-Channel OperationAdvanced MO

7、SFET Oversized Floating Rail Power Supply ( Auto turn on )Floating Ground Factory - Head - Unit Speaker - Level inputVariable Input Sensitivity (250mV - 4V)Fully Complementary Output Stage with Class-D Voltage AmplificationGold-plated Power, Input and Output Connectors2-Ohm Stable All tests to be do

8、ne, unless otherwise specified, from 10Hz to 320Hz at 14.4V DC into 2 ohm loads and adjust the units gain so that with a .775 volt input signal the unit is at its maximum rated output. All measurements will be done using an Audio precision system one and the supply voltage.An A+ line voltage of 14.4

9、V DC shall be applied to the unit under test for all measurements unless otherwise specified. The voltage applied to the unit shall be measured at the power connection on the Amplifier.Signal SourceUnless otherwise specified, all tests shall be conducted with the Audio Signal Generator output config

10、ured to be balanced, less than or equal to 50 ohm source impedance, and floating. The signal source GND shall beconnected to the Amplifier PWR GND at the Amplifier.Output LoadUnless otherwise specified, all tests shall be conducted with 2 ohm resistive loads having less than 10% reactive components

11、at any frequency below 350Hz. Each resistor shall have a value that remains within 1% while dissipating the rated output of the unit under test.Power Indicator LED steadily illuminates for normal operation. LED blinks whenprotection circuitry is engaged, and during power up.2BP-1200.1Features1 Chann

12、el Automotive Amplifier2Typical System Configuration4Vehicle BatteryChassis GroundIgnitionSwitchCD Player or ChangerCassette/CD Tuner(Head Unit)Power GroundSpeakers60 Amp (Not Included)Main +12VAmplifierPowerConnectionLineLevelInputRemote On/OffRemote AntennaPower SupplyAntenna Motor GroundRemote On

13、/OffBlack - Power GroundRed - Main +12VBlack PowerAntenna InputPowerAntennaCassette/ReceiverPower SupplyWiresFuseFuseFusePowerAntennaRelay1 Channel Automotive AmplifierBP-1200.13Controls and ConnectionsMounting the AmplifierThe JBL BP Series amplifiers can be mounted in virtually any location inside

14、 the vehicle.However, make sure to keep the amplifier away from heater vents or ducts.1. At the chosen site, use the amplifier as a mounting template and mark the locations of the four mounting holes.2. Drill a small pilot hole at each marked location.3. Mount the amplifier and securely tighten the

15、mounting screws.Controls and Connections1. It allows left and right input channels to be connected to the amplifier using RCA plugs.2. Speaker Output Connector - Connect speaker wiring to these connectors. See wiring instruc- tions on page 4 for more information.3. Fuse - 40Ax3 Amp ATC type Fuses.4.

16、 Power Connection for 12V+, GND and REM connections for power wires. See wiring instruc- tions on page 4 for more information.5. Input-Level Control - Adjusts input sensitivity for pre-amp level and speaker level inputs.6. The electronic crossover is a 12dB/oct. Low pass filter which can be Set at a

17、ny frequency between 32Hz and 320Hz.7. The bass boost control will provide up to 6dB of boost at 50Hz.8.It allows left and righ input channels such as high level speaker output signals to be the amplifier.1 Channel Automotive Amplifier3BP-1200.1- + - +SPEAKER OUTPUTSFUSES 40Ax3POWER85234674Service B

18、ulletinService Bulletin JBL2000-04 - November 2000Warranty labor rate: MINOR To:All JBL Service Centers Models: BP300.1, BP600.1, BP1200.1Subject: Muting during intense bass passagesThe JBL BP series amplifier is designed with the following protection circuits:Thermal (excess heat)DC voltage on the

19、output terminals (overdriving or “clipping”)Short Circuit (excessive current)Under certain large signal conditions during intense bass passages, the unit will go into protection. Theseamplifiers are behaving as designed. As the unit is driven into hard clipping, the protection circuit found in BPSer

20、ies amps was engineered to protect your loudspeakers from being destroyed by a severely clipped outputsignal. This can be remedied easily by turning the volume down somewhat on your music source.In the event you receive a BP series amplifier with the complaint: “Under a large signal input, withmusic

21、 that is composed of high-level bass, the amplifier mutes for 2-3 seconds, and then returns tonormal operation”, the following modification will effectively increase the amount of clipping that is allowed tooccur before the protection circuit engages by increasing the threshold at which the amplifie

22、r mutes - for thebenefit of customers who use the amps in SPL competition, or for customers who insist on driving theamplifiers into this potentially hazardous zone.1) Turn the amplifier upside-down and remove the Phillips screws holding the bottom cover on.2) Locate and change R510 from 47K to 4.7K

23、 ohms 1/5W (JBL part# RE212047200).3) Locate and change R511 from 22K to 2.2K ohms 1/4W (JBL part# QAF0450-222).4) If it is not already present, add new part - 4.7uf 50v electrolytic capacitor (JLB part# EC070114760) inparallel with R511. Polarity: The negative side of the capacitor must be connecte

24、d to the junction ofR510/R511, which can be discovered with an ohmmeter.NOTE: Using the correct soldering techniques, you should be able to make these changes from the top of thePCB without its removal.5) Replace bottom cover; test amplifierModelSerial numberStatusActionBP300.1BP600.1BP1200.1All Ser

25、ial numbers affectedModify if NeededChange R510 from 47K to 4.7K ohmsChange R511 from 22K to 2.2K ohmsAdd 4.7uf 50v electrolytic cap in parallel with R511512514BP-1200.1 Mechanical Exploded View123456789101112131415T.R BRACKET 1060AT.R BRACKET 1062CT.R BRACKET 1061B2389101113x546515162122x423x41 Cha

26、nnel Automotive AmplifierHEAT SINKREFLECTORSCREWLED CAPSUB PCBSCREWHEAT SINKP.C.BHEAT SINKSCREWSCREWFRONT PANELBP-1200.116171819QTYMFR PARTSNOMENCLATURE202122232425262728QTYMFR PARTSNOMENCLATURE2930MA-HS-65-1080-01MA-IL-65-1025-01MA-IL-65-1025-01MA-IL-65-1024-01PB0140870101MN-SC-00-5-30-081MA-HS-65-

27、1080-01PB0113440101MA-HS-65-1080-01MA-BR-02-1060-01MA-BR-02-1062-01MA-BR-02-1061-01MN-SC-00-2-40-1610MN-SC-00-5-30-065MA-FP-65-3787-0112MN-SC-00-2-30-06MO-SC-03-2-30-08MA-BC-65-2806-0SCREWSCREWBOTTOM COVER461SCREWREAR PANELSCREWSCREWFUSESCREWMN-SC-00-5-30-08FU030120401MB-SC-05-2-20-06MB-SC-04-3-30-0

28、8MA-RP-65-3788-0MB-SC-04-3-30-0813313117182019x3x3BADGEMA-BG-65-1026-01176Block Diagram91 Channel Automotive AmplifierBP-1200.1BUFFERPREAMPDRIVERPOWER AMPPROTECTIONP.W.MPOWERSUPPLYREMDC +12GNDREMLOW - INHI - INL+L-R+R-L+L-R+R-+-+-+ VCCGND-VEEBP1200.1 7BP1200.1 Parts List6REF. NOREF. NOQ211,212,213Q2

29、14,215,216Q311,312,313Q314,315,316Q742,743,744Q745,746,752Q753,754,755Q756Q103,202,203Q234,235,302Q303,334,335Q402,403,701Q231,331Q503,506,703Q741,751D101,102,202D232,302,332D402,403,601D602,704,731D740,741,751D201,231,301D331,401D404,701D501,771,772D773,774D702D761,762,763D764U101U102,103,104U105U1

30、06U107,109U108U111,702U701U761U762Q241,242,243Q244,341,342Q343,344Q101,501,502Q504,505,507Q702,704,705Q706Q102,204,205Q232,233,304Q305,332,333Q401Q201,301FE109641210FE132050105TR010233100TR035030101TR013810201TR012661200DI041480000DI052420040DI040040010DI001504111DI054040011DI003040999IC007455900IC0

31、01007200IC017007400IC009140600IC051043100IC007036100IC001039300IC017049400IC006781204IC006791204FE106401110TR031981100TR010273100P-CH MOSFET ( IRF9640 )N-CH MOSFET ( IRF3205 )SMALL SIGNAL PNP (A1023Y)VIDEO NPN (2SC3503)VIDEO PNP (2SA1381)SMALL SIGNAL PNP (A1266GR)SWITCHING (1N4148)ZENER (0.5W) (1N52

32、42)RECTIFIER (1N4004)RECTIFIER (PR1504)FAST RECOVERY (1N5404)FAST RECOVERY (MUR3040PT)DUAL OP AMP (KIA4559P)DUAL OP AMP (TL072CP)QUAD OP AMP (TL074CN)14-STAGE COUNTER ( MC14060 )SHUNT REGULATOR ( KIA431 )PRECISION COMPARATOR (LM361)COMPARATOR (KIA393P)P.W.M (TL494CN)VOLTAGE REGULATOR (KIA7812)0VOLT

33、AGE REGULATOR (KIA7912)N-CH MOSFET ( IRF640 )SMALL SIGNAL NPN (C3198GR)SMALL SIGNAL NPN (C1027Y)8101012225155251413112121111210R101,104,111R114,146,149R165,166,167R171,174,178R405,407,409R411,412,416R419,420,421R504,512,513R601,604,611R614,726,727R728R102,103,105R106,602,603R605,606R112,113,115R116,

34、612,613R615,616R120,122,153R154,414,510R121,123,124R125,401,402R126,155,175R709,710R127,163,403R129R130R131,132,735R133,147,162R170,179,180R201,231,301R331,729,739R742,752R134R135R136R140,143,506R141,144R142,145,708R150R151R152,164,176R418R161,168,410R736R169,743,744R745,746,747R753,754,755R756,757R

35、172R173,177R202,232,302R332R203,303R204,234,304R334R205,206,235R236,305,306R335,336R207,237,307R337R208,209,210R211,212,213R238,239,240RE202010300RE212100300RE212390300RE202047300RE212010300RE202022200RE202015200RE212022300RE212033200RE202056200RE202001300RE202015300RE202012300RE202470300RE306022200

36、RE212075300RE212047200RE202047800RE202082300RE202047200RE202010500RE202022000RE202100000RE204022000RE212470000RE212091000RE202330000RE202010000RE305015200RE314010000CARBON FILM 1/5W 5% ( 10K OHM )METAL FILM 1/5W 1% ( 100K OHM )METAL FILM 1/5W 1% ( 390K OHM )CARBON FILM 1/5W 5% ( 47K OHM )METAL FILM

37、1/5W 1% ( 10K OHM )CARBON FILM 1/5W 5% ( 2.2K OHM )CARBON FILM 1/5W 5% ( 1.5K OHM )METAL FILM 1/5W 1% ( 22K OHM )METAL FILM 1/5W 1% ( 3.3K OHM )CARBON FILM 1/5W 5% ( 5.6K OHM )CARBON FILM 1/5W 5% ( 1K OHM )CARBON FILM 1/5W 5% ( 15K OHM )CARBON FILM 1/5W 5% ( 12K OHM )CARBON FILM 1/5W 5% ( 470K OHM )

38、CARBO N FILM 2W 5% ( 2.2K OHM )METAL FILM 1/5W 1% ( 75K OHM )METAL FILM 1/5W 1% ( 4.7K OHM )CARBON FILM 1/5W 5% ( 10 OHM )CARBON FILM 1/5W 5% ( 75K OHM )CARBON FILM 1/5W 5% ( 4.7K OHM )CARBON FILM 1/5W 5% ( 1M OHM )CARBON FILM 1/5W 5% ( 22 OHM )CARBON FILM 1/5W 5% ( 100 OHM )CARBON FILM 1/2W 5% ( 22

39、 OHM )METAL FILM 1/5W 1% ( 470 OHM )METAL FILM 1/5W 1% ( 91 OHM )CARBON FILM 1/5W 5% ( 330 OHM )CARBON FILM 1/5W 5% ( 1 OHM )CARBON FILM 2W 5% ( 1.5K OHM )METAL FILM 1/2W 1% ( 10 OHM )3188665311314111323114411124248420Main PCB, Preamp, Crossover, Power Supply and PowerAmplifierPART NO.PART NO.DESCRI

40、PTIONDESCRIPTIONQTYQTYRESISTORSI.CDIODESTRANSISTORSF.E.T1 Channel Automotive AmplifierBP-1200.18Rev 07REF. NOREF. NOPART NO.PART NO.DESCRIPTIONDESCRIPTIONQTYQTYQTYR241,308,309R310,311,312R313,338,339R340,341R214,215,216R217,218,219R242,243,244R245,315,316R317,318,319R342,343,345R128,148,314R344,413,

41、415R712,738R220,320R233,333R246,346R247,347R404R406R408R417,505,740R501,502R503R507R508,509R511R700R701R703,733R704R705R706R707R711R715R723,725R724R731R732,737R734R741,751R761R764,765R771,772C101,102,197C200,732C106,405,509C706,713,777C779C108C171,172,178C180,184,193C505RE202100300RE306047000RE21205

42、1000RE908010013RE202470000RE212011300RE212330000RE202220300RE202033300RE306001300RE202820300RE306022800RE202056300RE202022300RE202390300RE202033200RE202068200RE202027200RE202018200RE204010000RE212105200RE202047000RE202027300RE202012200RE202051300RE202022500RE202330300RE202043200RE203220000RE30610000

43、0RE305039200RE305010000EC040112200EC040111010EC050112200EC040114700CARBON FILM 1/5W 5% ( 100K OHM )CARBON FILM 2W 5% ( 47 OHM )METAL FILM 1/5W 1% ( 51 OHM )SHUNT 3 LEAD 5W ( 0.01 OHM )CARBON FILM 1/5W 5% ( 470 OHM )METAL FILM 1/5W 1% ( 11K OHM )METAL FILM 1/5W 1% ( 330 OHM )CARBON FILM 1/5W 5% ( 220

44、K OHM )CARBON FILM 1/5W 5% ( 33K OHM )CARBON FILM 2W 5% ( 1K OHM )CARBON FILM 1/5W 5% ( 820K OHM )CARBON FILM 2W 5% ( 2.2 OHM )CARBON FILM 1/5W 5% ( 56K OHM )CARBON FILM 1/5W 5% ( 22K OHM )CARB ON FILM 1/5W 5% ( 390K OHM )CARBON FILM 1/5W 5% ( 3.3K OHM )CARBON FILM 1/5W 5% ( 6.8K OHM )CARBON FILM 1/

45、5W 5% ( 2.7K OHM )CARBON FILM 1/5W 5% ( 1.8K OHM )CARBON FILM 1/2W 5% ( 10 OHM )METAL FILM 1/5W 1% ( 10.5K OHM )CARBON FILM 1/5W 5% ( 47 OHM )CARBON FILM 1/5W 5% ( 27K OHM )CARBON FILM 1/5W 5% ( 1.2K OHM )CARBON FILM 1/5W 5% ( 51K OHM )CARBON FILM 1/5W 5% ( 2.2M OHM )CARBON FILM 1/5W 5% ( 330K OHM )

46、CARBON FILM 1/5W 5% ( 4.3K OHM )CARBON FILM 1/4W 5% ( 220 OHM )CARBON FILM 2W 5% ( 100 OHM )CARBON FILM 1W 5% ( 3.9K OHM )CARBON FILM 2W 5% ( 10 OHM )ELECTROLYTIC SMS ( 22uF/16V )ELECTROLYTIC SMS ( 100uF/16V )ELECTROLYTIC SMS ( 22uF/25V )ELECTROLYTIC SMS ( 47uF/16V )262222111321121112111111211212122

47、5717C206,236,306C336C403C408,709,733C501,502,508C538C701C703,704C716,717,718C719,720C771,772C773,775C764,765C103,104C107,118,160C161,166,232C332C138,142,164C163,170,173C174,175,177C179,183,190C191,192,194C195,196,199C203,233,291C303,333,401C402,404,510C705,707,715C721,722,724C725,726,731C774,776,778

48、C780C167,176,198C210,310,240C340C201,231,301C331C407C105,506,714C131C132C134C135C140,141,162C409C168,205,235C305,335,503C504,712,762C763,766,767C204,234,304C334C207,307,406C711,761C208,209,308C309,507C2 37,768C702,723EC070122221EC070112210EC070114760EC111211000EC050171010EC040111000EC050122200EC0701

49、11000EC060114710EC071048221CC011101100CC011470100CC011331200CC011104600CC051104020CC011050100CC011102200MC001110400MC091412407MC091468307MC091410407MC091418307MC001110300MC001410530MC001422401MC001110200MC081222511MC001722511MC091410507ELECTROLYTIC SHL ( 2200uF/50V )ELECTROLYTC SMS ( 220uF/50V ) ELE

50、CTROLYTIC SMS ( 4.7uF/50V )ELECTROLYTIC BP ( 10uF/200V )ELECTROLYTIC SXE ( 100uF/25V )ELECTROLYTIC SMS ( 10uF/16V )ELECTROLYTIC RX ( 2200uF/25V )ELECTROLYTIC SMS ( 10uF/50V )ELECTROLYTIC SMS ( 470uF/35V )ELECTROLYTIC CE-HC ( 8200uF/50V )CERAMIC DISK 50V NPO ( 100pF )CERAMIC DISK 50V NPO ( 47pF )CERA