JBL-DPS12-sub-sm 电路图 维修手册.pdf

JBL Consumer Products Inc. 250 Crossways Park Drive Woodbury, N.Y. 11797 1- 800- 336- 4JBL in the USA A Harman International Company Rev E 7/2001 PSW-D112/DPS-12 Powered Subwoofer SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 SAFETY INFORMATION Warning Caution Leakage/ResistanceCheck List of Safety Components Requiring Exact Replacements (all parts POWER AMP PCB except TR2) C6 (Rev0)4.7uf 100V 80/-20% Electrolytic redial NP C6 (Rev1)4.7uf 100V 80/-20% Electrolytic redial NP TR2MPS A13 30V NPN(Darl) R4a/b/c0.1 0.5W 5% metal film R93.3 5W 5% ceramic wirewound R15100k 0.5W 5% carbon film DBRBridge Rect 200V Use only factory replacement. R110M 0.25W 5% carbon film R16, 171.8k 5W 5% ceramic wirewound R33 (Rev0) only)332 0.5W 5% carbon film R50 (Rev0) only)332 0.5W 5% carbon film R52, 572.7k 5W 5% ceramic wirewound R613.9k 3W 5% carbon film S64AMIPower output module. Use only factory replacement FaceplateFaceplate. Use only factory replacement CMC1Use only factory replacement L1Use only factory replacement Fuse PCBUse only factory replacement Main PCBUse only factory replacement 4700uF,50V electrolytic filter caps. Be sure replacement part is at least the same working voltage and capacitance rating. Also the lead spacing is important. Incorrect spacing may cause premature failure due to internal cabinet pressure and vibration. 2 Amplifier/SubwooferPSW-D110/DPS-10 F1 PWRCORD TRX1 C1, 2 Transformer. Use only factory replacement. SPT-2 or better with polarized plug, UL approved wire with the hot side to fused side. Use with factory replacement panel strain relief only. Fuse SLO BLO 1.25A 250V UL approved Any person performing service of this unit will be exposed to hazardous voltages and the risk of electric shock. It is assumed that any person who removes the amplifier from this cabinet has been properly trained in protecting against avoidable injury and shock. Therefore, any service procedures are to be performed by qualified service personal ONLY! Before returning the unit to the customer, perform a leakage or resistance test as follows: Leakage Current. Note there is no power switch on this unit. When the power plug is plugged in, the unit is live. Connect the unit to its rated power source. Using an ammeter, measure the current between the neutral side of the AC supply and chassis ground of the unit under test. If leakage current exceeds 0.5A, the unit is defective. Reverse the polarity of the AC supply and repeat. Resistance. Measure the resistance from either side of the line cord to chassis ground. If it is less than 500k ohms, the unit is defective. WARNING! DO NOT return the unit to the customer if it fails one of these tests until the problem is located and corrected. This unit does not have a power switch. Hazardous voltages are present within the unit whenever it is plugged in. Before the amplifier is plugged in, be sure its rated voltage corresponds to the voltage of the AC power source to be used. Incorrect voltage could cause damage to the amplifier when the AC power cord is plugged in. Do not exceed rated voltage by more than 10%: operation below 90% of rated voltage will cause poor performance or may shut the unit off. 00465-2 IMPORTANT SERVICE NOTES: When testing the PSW-D112/DPS-12 Series amplifier, a load must always be connected to the output terminals, whether the woofer, or a 4 to 8 ohm resistive load. All AC powered test instruments (meters, oscilloscopes, etc.) must have a floating ground, i.e., be connected to an isolation transformer. Critical Components All components identified with the IEC symbol in the parts list and the schematic diagram designate components in which safety can be of special significance when replacing a component identified with . Use only the replacement parts designated in the parts list or parts with the same rating of resistance, wattage or voltage. RadioFans.CN 收音机爱 好者资料库 3 Amplifier/SubwooferPSW-D112/DPS-12 TABLE OF CONTENTS SAFETY INFORMATION.2 TABLE OF CONTENTS.3 GENERAL SPECIFICATIONS.3 DETAILED SPECIFICATIONS.4 CONTROLS AND THEIR FUNCTION.6 OPERATION.7 SPEAKER CONNECTIONS.8 TROUBLESHOOTING .10 TEST SET UP AND PROCEDURE.11 TESTING PROCEDURE.12 POWER AMP MODULE TESTING FLOW CHART.14 SERVICE BULLETIN JBL2001- 02 - FEBRUARY 2001.16 SERVICE BULLETIN JBL9903 Rev 1 - FEBRUARY 2001.15 CABINET EXPLODED VIEWS.17 AMPLIFIER EXPLODED VIEW.18 MECHANICAL PARTS LIST.19 PACKING EXPLODED VIEWS.20 Rev0 PCB (Component Side).21 Rev0 PCB (Solder Side).22 PCB (Component Side) PREAMP Rev1, PWRAMP Rev1.23 PCB (Solder Side) PREAMP Rev1, PWRAMP Rev1.24 ELECTRICAL PARTS LIST (Rev0).25 ELECTRICAL PARTS LIST Rev1 PCB.27 INTEGRATED CIRCUITS.29 SCHEMATIC 1 of 3 (Rev0) .30 SCHEMATIC 2 of 3 (Rev0) .31 SCHEMATIC 3 of 3 (Rev0) .32 PREAMP SCHEMATIC Rev1.33 POWERAMP SCHEMATIC Rev1.0.34 POWERAMP SCHEMATIC Rev1.1.35 GENERAL SPECIFICATIONS Amplifier Power (RMS). . . . . . . . 250 watts Driver 12. . . . . . . . . . . . . High- Polymer Laminate Inputs . . . . . . . . . . . . . . . Line Level and Speaker Level Outputs. . . . . . . . . . . . . . Line Level and Speaker Level Low- Pass Frequency. . . . . . . . Continuously variable from 60Hz 180Hz High- Pass Frequency . . . . . . . . Continuously variable from 60Hz 180Hz when using line- level inputs 150Hz when using speaker- level inputs Frequency Response. . . . . . . . 28Hz low- pass crossover setting PSW-D112DPS-12 Dimensions (H x W x D) . . . . . . . 17- 1/2 x 17- 1/2 x 19- 1/822- 1/8 x 17- 1/2 x 17- 1/2 (445 x 445 x 486mm)(562 x 445 x 445mm) Weight . . . . . . . . . . . . . . . 40 lbs/18.2 kg38 lbs/17.3kg NOTE: CERTAIN DRAWINGS AND CONNECTIONS WERE DEPICTED INCORRECTLY IN SOME EARLY COPIES OF THE PSW-D112 AND DPS-12 OWNERS MANUALS. THEY INCLUDE: 1. DRAWING OF RCA LINE LEVEL INPUT/OUTPUT JACKS ON PAGES 3, 4, ALL CHANNELS -RIGHT SIDE SHOULD BE “LINE OUT”, LEFT SIDE SHOULD BE “LINE IN”. 2. CONNECTION ON PAGE 4 OF OWNERS MANUAL -SINGLE CABLE DIRECT INPUT (FOR DOLBY DIGITAL OR DTS SURROUND); SINGLE CABLE FROM YOUR RECEIVER/PROCESSOR SHOULD CONNECT TO: Rev0 version -THE “CENTER CHANNEL LINE IN” JACK ON YOUR SUBWOOFER. Rev1 version -EITHER LEFT OR RIGHT INPUT JACK ON YOUR SUBWOOFER. THOSE DRAWINGS ARE CORRECT IN THIS DOCUMENT, SEE PAGES 8 you should be able to remove the amplifier far enough out of the cabinet to service it without removing the woofer wires. 4)Locate the Power Amp Module; it is the large gray component with a metal case. On the solder side of the circuit board are the 28 soldered connections to the Module. 5)Regardless of whether you can visibly see breaks in any of the connections or not, carefully re-solder all 28 pin connections, adding 60/40 rosin core solder. Take care not “bridge” any connections on the board with solder. 6)Inspect the solder joints to the main filter capacitors C1 and C2 on the main PCB and re-solder if needed. 7)Replace the amplifier assembly back into the cabinet; replace the screws. 8)Test the unit by applying a signal from a music source, adjust the volume to a moderate level and confirm the original problem has been corrected. IMPORTANT SERVICE NOTES: When testing the PSW-D, or ARC Series amplifier, a load must always be connected to the output terminals, whether the woofer, or a 4 to 8 ohm resistive load. All AC powered test instruments (meters, oscilloscopes, etc.) must have a floating ground, i.e. be connected to an isolation transformer. 15 JBL Incorporated250 Crossways Park Dr.Woodbury, New York 11797 (516) 496-3400 Service Bulletin Service Bulletin JBL2001-02 - February 2001This is considered a Minor repair To:All JBL Service Centers Models: PSW-D112 rev0*, DPS-12, PSW-D115 Subject:Check Ribbon Cable Connection In Event Of Failure Some performance related complaints in the PSW-D or DPS Series powered Subwoofers may be caused by broken or cold solder connections in the ribbon cable connector between the premamp and main PCB. When this condition occurs, it may also damage the Input Op-Amps U1/U2. When troubleshooting, failure to check this connector and Input Op-Amps U1/U2 can result in erroneous conclusions or wasted time. In the event you receive a PSW-D112*, DPS-12, or PSW-D115 Subwoofer with any of the complaints “Dead, or No Output, or Motorboating (Oscillation)”, perform the steps listed below before any further troubleshooting takes place: 1)Unplug all cables, lay the subwoofer on a padded surface. 2)Remove all Philips screws around the outer perimeter of the amplifier faceplate. 3)Remove amplifier assembly; you should be able to remove the amplifier far enough out of the cabinet to service it without removing other connecting wires. 4)Locate the ribbon cable connector between the premamp PCB and the main PCB. See illustration. 5)Desolder the connection on that cable where the cable attaches to the premamp PCB; to access, you may have to carefully remove or scrape adhesive from this area. 6)Cut approximately ” of ribbon from the cable end, then strip enough of the insulator on each of the six conductors to allow re-connection. Take care not to damage the wire. Solder the cable end back onto the premamp PCB. 7)Test the unit by applying a signal from a music source, adjust the volume to a moderate level and confirm the original problem has been corrected. 8)If not, troubleshoot Op-Amps U1 and U2 by standard methods; replace if defective: Make sure plus/minus voltages are present on pins 4 and 11. Make sure DC voltages are not present at output pins 1,7,8,14. (See schematic) Apply a signal and confirm there is an output on pins 1,7,8,14. (See schematic) 9)Replace the amplifier assembly back into the cabinet; replace the screws. * Rev 0 of the PSW-D112 subwoofer is easily identified by the presence of Center channel Input and Output connectors IMPORTANT SERVICE NOTES: When testing the PSW-D or DPS Series amplifier, a load must always be connected to the output terminals, whether the woofer, or a 4 to 8 ohm resistive load. All AC powered test instruments (meters, oscilloscopes, etc.) must have a floating ground, i.e. be connected to an isolation transformer. 16 17 Amplifier/SubwooferPSW-D112/DPS-12 CABINET EXPLODED VIEWS SCREWS (12) SCREWS (8) JBLLogo #200512 FEET #200582 CABINET NOT FOR SALE 12 WOOFER #200700 AMPLIFIER ASSEMBLY SCREWS (12) SCREWS (8) FOOT PART 1 #200670 FOOT PART 2 #200870 CABINET NOT FOR SALE 12 WOOFER #200700 AMPLIFIER ASSEMBLY DPS-12 CABINET ASSEMBLY PSW-D112 CABINET ASSEMBLY GRILLE #200710 CONTROL PANEL #200760 VOLUME KNOB #70313 VIDEO CONT. BUTTON #70314 VIDEO CONT. SWITCH #70152 18 Amplifier/SubwooferPSW-D112/DPS-12 AMPLIFIER EXPLODED VIEW 55 44 33 22 11 A A B B C C D D E E F F G G PSW-D112/DPS-12 Rev0 (PSW-D112 shown here) Amplifier Assembly Exploded View shown here 13 14 12 17 15 11 6 1 9 7 2 5 16 4 8 10 S64AMI 19 Amplifier/SubwooferPSW-D112/DPS-12 PSW-D112/DPS-12 MECHANICAL PARTS LIST Ref. # Part NumberDescriptionQty PSW-D112/DPS-12 170302Knob, 3 pcs on DPS-12, 2 pcs on PSW-D112 270312Faceplate PSW-D112 270311Faceplate DPS-12 370316Amp PCB support 470150Phase switch1 (also DPS-12 Video Contour switch) 570151Power switch Safety part 670170#4x0.5 Screws to secure input jack 770171#10 x 1 Screw machine screw Bolts for transformer 4 per unit 870172#10 keps Nuts for transformer 4 per unit4 970173#6 x 0.5 Screws for fuse PCB 2per unit2 1080116Transformer #4632 Safety part1 1180117250V, 2.0A, T type SLO BLO fuse Safety part 1280118Preamp board, D112,D115,DPS12 Safety part 1380119Power amp board D112, D115,DPS12 Safety part 1480120High level input PCB D112,D115,DPS12 Safety part 15108116High level 5way binding post(pr)(4) or (6) 16108322Six line RCA input jack (Rev0)1 108321Quad RCA input jack (Rev1)1 17108323Single RCA input jack (Rev0 version only)1 20 Amplifier/SubwooferPSW-D112/DPS-12 PACKING EXPLODED VIEWS DPS-12 PSW-D112 WARRANTY CARD OWNERS MANUAL #200730 (120V) #331993-001 WARRANTY CARD #331993-001 OWNERS MANUAL #200830 (120V) TOP FOAM PAD #200722 TOP STYROFOAM RAILS (2) PER BOX #200821 PSW-D112 DPS-12 BOTTOM FOAM PAD #200721 BOTTOM STYROFOAM RAILS (2) PER BOX #200822 CARTON #200720 CARTON #200820 BOTTOM STYROFOAM PAD #200824 PLASTIC BAG PLASTIC BAG DPS-12 PSW-D112 21 Amplifier/SubwooferPSW-D112/DPS-12 PSW-D112/DPS-12 Rev0 PCB (Component Side) Rev0 - Component Side Trace Layer 55 44 33 22 11 A A B B C C D D E E F F G G 22 Amplifier/SubwooferPSW-D112/DPS-12 PSW-D112/DPS-12 Rev0 PCB (Solder Side) Rev0 - Solder Side Trace Layer as viewed through the board 55 44 33 22 11 A A B B C C D D E E F F G G 23 Amplifier/SubwooferPSW-D112/DPS-12 Rev1 - Component Side Trace Layer 55 44 33 22 11 A A B B C C D D E E F F G G PSW-D112/DPS-12 PCB (Component Side) PREAMP Rev1, PWRAMP Rev1 24 Amplifier/SubwooferPSW-D112/DPS-12 Rev1 - Solder Side Trace Layer as viewed through the board 55 44 33 22 11 A A B B C C D D E E F F G G PSW-D112/DPS-12 PCB (Solder Side) PREAMP Rev1, PWRAMP Rev1 PSW-D112/DPS-12 ELECTRICAL PARTS LIST (Rev0) Preamp Board Low Pass4043620k?0.25W 10% Quad Lin Pot1 Level404025k?0.25W 10% Single Linear Pot1 High pass4045020k?0.25W 10% 3-gang Tandem Lin Pot1 Capacitors Safety C130502100nF 50V 20% Mono-ceramic axial1 C2, C33050147nF 50V 20% Mono-ceramic axial2 CE33070847uF 16V 20% Electrolytic Radial1 C43050147nF 50V 20% Mono-ceramic axial1 C530100330pF 50V 20% Mono-ceramic axial1 C6, 24, 253050147nF 50V 20% Mono-ceramic axial3 C7, 930100330pF 50V 20% Mono-ceramic axial2 C830101220pF 50V 20% Mono-ceramic axial1 C1030502100nF 50V 20% Mono-ceramic axial1 C11, 123051768nF 50V 10% Mono-ceramic axial2 C13, 14, 1530101220pF 50V 20% Mono-ceramic axial3 C1630504100nF 50V 10% Mono-ceramic axial1 C1730502100nF 50V 20% Mono-ceramic axial1 C18Jumper C193050810nF 50V 10% Mono-ceramic axial1 C20, 21, 22, 2330504100nF 50V 10% Mono-ceramic axial4 Resistors R1404054.7k?0.25W 5% carbon film1 R24043168k?0.25W 1% metal f