JBL-BP1200_1-pwr-sm 电路图 维修手册.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 Curre

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

5、10 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. Fo

6、r 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 1 RadioFans.CN 收音机爱 好者资料库 Test Conditions and Notes 1-Channel Operation Advan

7、ced MOSFET Oversized Floating Rail Power Supply ( Auto turn on ) Floating Ground Factory - Head - Unit Speaker - Level input Variable Input Sensitivity (250mV - 4V) Fully Complementary Output Stage with Class-D Voltage Amplification Gold-plated Power, Input and Output Connectors 2-Ohm Stable All tes

8、ts to be done, 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 vol

9、tage of 14.4V 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 Source Unless otherwise specified, all tests shall be conducted with the Audio Signal Generator

10、 output configured to be balanced, less than or equal to 50 ohm source impedance, and floating. The signal source GND shall be connected to the Amplifier PWR GND at the Amplifier. Output Load Unless otherwise specified, all tests shall be conducted with 2 ohm resistive loads having less than 10% rea

11、ctive components 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 when protection circuitry is engaged, and during power up. 2 BP-

12、1200.1 Features 1 Channel Automotive Amplifier 2 RadioFans.CN 收音机爱 好者资料库 Typical System Configuration 4 Vehicle Battery Chassis Ground Ignition Switch CD Player or Changer Cassette/CD Tuner (Head Unit) Power Ground Speakers 60 Amp (Not Included) Main +12V Amplifier Power Connection Line Level Input

13、Remote On/Off Remote Antenna Power Supply Antenna Motor Ground Remote On/Off Black - Power Ground Red - Main +12V Black Power Antenna Input Power Antenna Cassette/Receiver Power Supply Wires Fuse Fuse Fuse Power Antenna Relay 1 Channel Automotive Amplifier BP-1200.1 3 Controls and Connections Mounti

14、ng the Amplifier The JBL BP Series amplifiers can be mounted in virtually any location inside 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. D

15、rill a small pilot hole at each marked location. 3. Mount the amplifier and securely tighten the mounting screws. Controls and Connections 1. 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 connec

16、tors. See wiring instruc- tions on page 4 for more information. 3. Fuse - 40Ax3 Amp ATC type Fuses. 4. 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 an

17、d speaker level inputs. 6. The electronic crossover is a 12dB/oct. Low pass filter which can be Set at any 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

18、 amplifier. 1 Channel Automotive Amplifier 3 BP-1200.1 - + - + SPEAKER OUTPUTS FUSES 40Ax3 POWER 85 234 67 4 Service Bulletin Service Bulletin JBL2000-04 - November 2000Warranty labor rate: MINOR To:All JBL Service Centers Models: BP300.1, BP600.1, BP1200.1 Subject: Muting during intense bass passag

19、es The JBL BP series amplifier is designed with the following protection circuits: Thermal (excess heat) DC voltage on the output terminals (overdriving or “clipping”) Short Circuit (excessive current) Under certain large signal conditions during intense bass passages, the unit will go into protecti

20、on. These amplifiers are behaving as designed. As the unit is driven into hard clipping, the protection circuit found in BP Series amps was engineered to protect your loudspeakers from being destroyed by a severely clipped output signal. This can be remedied easily by turning the volume down somewha

21、t on your music source. In the event you receive a BP series amplifier with the complaint: “Under a large signal input, with music that is composed of high-level bass, the amplifier mutes for 2-3 seconds, and then returns to normal operation”, the following modification will effectively increase the

22、 amount of clipping that is allowed to occur before the protection circuit engages by increasing the threshold at which the amplifier mutes - for the benefit of customers who use the amps in SPL competition, or for customers who insist on driving the amplifiers into this potentially hazardous zone.

23、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 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.

24、7uf 50v electrolytic capacitor (JLB part# EC070114760) in parallel with R511. Polarity: The negative side of the capacitor must be connected to the junction of R510/R511, which can be discovered with an ohmmeter. NOTE: Using the correct soldering techniques, you should be able to make these changes

25、from the top of the PCB without its removal. 5) Replace bottom cover; test amplifier ModelSerial numberStatusAction BP300.1 BP600.1 BP1200.1 All Serial numbers affectedModify if Needed Change R510 from 47K to 4.7K ohms Change R511 from 22K to 2.2K ohms Add 4.7uf 50v electrolytic cap in parallel with

26、 R511 5 1 25 14 BP-1200.1 Mechanical Exploded View 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 T.R BRACKET 1060A T.R BRACKET 1062C T.R BRACKET 1061B 2 3 8 9 10 11 13 x5 4 6 5 15 16 21 22x4 23 x4 1 Channel Automotive Amplifier HEAT SINK REFLECTOR SCREW LED CAP SUB PCB SCREW HEAT SINK P.C.B HEAT SINK SCREW SC

27、REW FRONT PANEL BP-1200.1 16 17 18 19 QTYMFR PARTSNOMENCLATURE 20 21 22 23 24 25 26 27 28 QTYMFR PARTSNOMENCLATURE 29 30 MA-HS-65-1080-0 1 MA-IL-65-1025-0 1 MA-IL-65-1025-0 1 MA-IL-65-1024-0 1 PB014087010 1 MN-SC-00-5-30-08 1 MA-HS-65-1080-0 1 PB011344010 1 MA-HS-65-1080-0 1 MA-BR-02-1060-0 1 MA-BR-

28、02-1062-0 1 MA-BR-02-1061-0 1 MN-SC-00-2-40-16 10 MN-SC-00-5-30-06 5 MA-FP-65-3787-0 1 12 MN-SC-00-2-30-06 MO-SC-03-2-30-08 MA-BC-65-2806-0 SCREW SCREW BOTTOM COVER 4 6 1 SCREW REAR PANEL SCREW SCREW FUSE SCREW MN-SC-00-5-30-08 FU030120401 MB-SC-05-2-20-06 MB-SC-04-3-30-08 MA-RP-65-3788-0 MB-SC-04-3

29、-30-08 1 3 3 1 3 1 17 18 20 19 x3 x3 BADGE MA-BG-65-1026-0 1 17 6 Block Diagram 9 1 Channel Automotive Amplifier BP-1200.1 BUFFER PRE AMP DRIVER POWER AMP PROTECTION P.W.M POWER SUPPLY REM DC +12 GND REM LOW - IN HI - IN L+ L- R+ R- L+ L- R+ R- + - + - + VCC GND -VEE BP1200.1 7 BP1200.1 Parts List 6

30、 REF. NOREF. NO Q211,212,213 Q214,215,216 Q311,312,313 Q314,315,316 Q742,743,744 Q745,746,752 Q753,754,755 Q756 Q103,202,203 Q234,235,302 Q303,334,335 Q402,403,701 Q231,331 Q503,506,703 Q741,751 D101,102,202 D232,302,332 D402,403,601 D602,704,731 D740,741,751 D201,231,301 D331,401 D404,701 D501,771,

31、772 D773,774 D702 D761,762,763 D764 U101 U102,103,104 U105 U106 U107,109 U108 U111,702 U701 U761 U762 Q241,242,243 Q244,341,342 Q343,344 Q101,501,502 Q504,505,507 Q702,704,705 Q706 Q102,204,205 Q232,233,304 Q305,332,333 Q401 Q201,301 FE109641210 FE132050105 TR010233100 TR035030101 TR013810201 TR0126

32、61200 DI041480000 DI052420040 DI040040010 DI001504111 DI054040011 DI003040999 IC007455900 IC001007200 IC017007400 IC009140600 IC051043100 IC007036100 IC001039300 IC017049400 IC006781204 IC006791204 FE106401110 TR031981100 TR010273100 P-CH MOSFET ( IRF9640 ) N-CH MOSFET ( IRF3205 ) SMALL SIGNAL PNP (

33、A1023Y) VIDEO NPN (2SC3503) VIDEO PNP (2SA1381) SMALL SIGNAL PNP (A1266GR) SWITCHING (1N4148) ZENER (0.5W) (1N5242) 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 ) S

34、HUNT REGULATOR ( KIA431 ) PRECISION COMPARATOR (LM361) COMPARATOR (KIA393P) P.W.M (TL494CN) VOLTAGE REGULATOR (KIA7812)0 VOLT AGE REGULATOR (KIA7912) N-CH MOSFET ( IRF640 ) SMALL SIGNAL NPN (C3198GR) SMALL SIGNAL NPN (C1027Y) 8 10 10 12 2 2 5 15 5 2 5 1 4 1 3 1 1 2 1 2 1 1 1 12 10 R101,104,111 R114,

35、146,149 R165,166,167 R171,174,178 R405,407,409 R411,412,416 R419,420,421 R504,512,513 R601,604,611 R614,726,727 R728 R102,103,105 R106,602,603 R605,606 R112,113,115 R116,612,613 R615,616 R120,122,153 R154,414,510 R121,123,124 R125,401,402 R126,155,175 R709,710 R127,163,403 R129 R130 R131,132,735 R13

36、3,147,162 R170,179,180 R201,231,301 R331,729,739 R742,752 R134 R135 R136 R140,143,506 R141,144 R142,145,708 R150 R151 R152,164,176 R418 R161,168,410 R736 R169,743,744 R745,746,747 R753,754,755 R756,757 R172 R173,177 R202,232,302 R332 R203,303 R204,234,304 R334 R205,206,235 R236,305,306 R335,336 R207

37、,237,307 R337 R208,209,210 R211,212,213 R238,239,240 RE202010300 RE212100300 RE212390300 RE202047300 RE212010300 RE202022200 RE202015200 RE212022300 RE212033200 RE202056200 RE202001300 RE202015300 RE202012300 RE202470300 RE306022200 RE212075300 RE212047200 RE202047800 RE202082300 RE202047200 RE20201

38、0500 RE202022000 RE202100000 RE204022000 RE212470000 RE212091000 RE202330000 RE202010000 RE305015200 RE314010000 CARBON 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 1/5W 1% ( 10K OHM ) CARBON FILM 1/5W 5% ( 2.2K O

39、HM ) 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 ) CARBO N FILM 2W 5% ( 2.2K OHM ) METAL

40、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 OHM ) METAL FILM 1/5W 1% ( 4

41、70 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 ) 31 8 8 6 6 5 3 1 1 3 14 1 1 1 3 2 3 1 1 4 4 11 1 2 4 2 4 8 4 20 Main PCB, Preamp, Crossover, Power Supply and Power Amplifier PART NO.PART

42、 NO.DESCRIPTIONDESCRIPTIONQTYQTY RESISTORS I.C DIODES TRANSISTORS F.E.T 1 Channel Automotive Amplifier BP-1200.1 8 Rev 0 7 REF. NOREF. NOPART NO.PART NO.DESCRIPTIONDESCRIPTIONQTY QTY QTY R241,308,309 R310,311,312 R313,338,339 R340,341 R214,215,216 R217,218,219 R242,243,244 R245,315,316 R317,318,319

43、R342,343,345 R128,148,314 R344,413,415 R712,738 R220,320 R233,333 R246,346 R247,347 R404 R406 R408 R417,505,740 R501,502 R503 R507 R508,509 R511 R700 R701 R703,733 R704 R705 R706 R707 R711 R715 R723,725 R724 R731 R732,737 R734 R741,751 R761 R764,765 R771,772 C101,102,197 C200,732 C106,405,509 C706,7

44、13,777 C779 C108 C171,172,178 C180,184,193 C505 RE202100300 RE306047000 RE212051000 RE908010013 RE202470000 RE212011300 RE212330000 RE202220300 RE202033300 RE306001300 RE202820300 RE306022800 RE202056300 RE202022300 RE202390300 RE202033200 RE202068200 RE202027200 RE202018200 RE204010000 RE212105200

45、RE202047000 RE202027300 RE202012200 RE202051300 RE202022500 RE202330300 RE202043200 RE203220000 RE306100000 RE305039200 RE305010000 EC040112200 EC040111010 EC050112200 EC040114700 CARBON 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 )

46、 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% ( 220K 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