SERVICE MANUAL - Schematics Forum
Contents
1. 32 Printed Circuit Boards PCB version 6 4 35 Printed Circuit Boards PCB version 7 2 36 Schematics Preamp PCB version 6 3 0 39 Power Amp PCB version 6 3 40 Power Amp PCB version 7 0 41 Preamp PCB version 7 2 42 Power Amp PCB version 7 2 43 PB10 UBL SAFETY INFORMATION Warning 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 Caution 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 Leakage Resistance2. Make sure that the subwoofer is plugged into an active electrical outlet and PB12 only switched on Adjust the crossover point Flip the Phase Control switch to the opposite position f you are using a Dolby Digital DTS receiver or processor make sure that the subwoofer adjustments on the receiver processor are set up correctly e Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass 11 If at some time in the future you happen to rearrange your listening room and move your speakers you should experiment with the phase switch in both positions and leave it in the position that maximizes bass performance If you used the line level inputs and there is no sound from the subwoofer Check that receiver amplifier is on and a source is playing Check that powered subwoofer is plugged into an active electrical outlet and is switched on Check all wires and connections between receiver amplifier and subwoofer Make sure all wires are connected Make sure none of the wires are frayed cut or punctured Review proper operation of your receiver amplifier e Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass Make sure that you have configured your receiver processor so that the subwoofer LFE output is on PB10 PB10 TEST SET UP AND PROCEDURE AC VOLT METER 6V FROM w CD PLAYER LINE LEVE
3. 1W 25W 25W 25W 25W 2W 0 5W 0 5W 1W 1W 25W 2W 25W 25W 25W 25W 0 5W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 01 0 01 0 05 0 05 0 01 0 01 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 01 0 01 0 01 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 05 0 01 0 05 0 05 Description metal metal metal carbon carbon carbon carbon carbon metal metal metal carbon metal metal carbon metal metal metal metal metal metal carbon metal carbon carbon metal metal metal carbon carbon carbon carbon carbon carbon carbon carbon carbon carbon metal carbon carbon 00232 10 UBL PB10 PB10 Electrical Parts List Cont PB10 POWER AMP section of PCB Version 6 3 7 0 Part Designator Description 40728 5k6 1W 0 05 metal 40728 R7B 5k6 1W 0 05 metal 40728 R7C 5k6 1W 0 05 metal 40729 R8A 4k7 1W 0 05 metal 40729 R8B 4k7 1W 0 05 metal R9 NOT USED Miscellaneous 80101 L1 110uH Gapped E core choke 80102 L2 2 2uH 2 2uH ferrite bead L3 0 R Jumper L4 0 R Jumper 80100 CMC 2m2H 5 Amp 0 05 2 2mH choke 60301 MODULE S53 S53AMI amp module 108326 LED Harness MOLEX 2 FEMALE 80135 TRX MCI 5024 100VA Conc Wnd Mtd on Faceplate 50106 On Harness 2 Clr LED T 4 3 4 Type 50106 On Harness 2 Clr LED T 1 3 4 Type 70322 LED PCB socket Male PCB LED socket 801
4. 99 eld c 0003 a Ed 62 INV si e 91H wi 9 E eR zu E 9 uorsa es 5 N o m n NO ez KOJE om gt zzz 029 108103 a 023 55401 13437 110 u 1no 3 C RN 310138 w i w d z RETE I E 2 DI SUR x A A t lt A E S NY e q ca a 34 PCB version 6 4 PowerAmp only gt 3 m N RIN L OUT R OUT czo PREAMP m ET Version 6 3 Fess AMI m m 2000 E 2 gt AC LIVE TRANS PRI DIODE BRIDGE 5 amp w 7 e o 5 ca 5 RBA AC sa PWRAMP 4 NU R30 R7AR7BR7C R27 Version 6 4 SILKSCREEN FANCY Version 6 35 PCB version 7 2 36 PCB version 7 2 COMP SIDE FANCY Version 7 2 125 holes NOT thru plated 37 PCB version 7 2 2 4 2 288392289 O PREAMP Version 7 2 28282 828888 TO TRANS PRI 62 R34 R42 ba DIO E Q 5 g ek SECONDARY TRANSFORMER Smm TYPE 08 R46 25 B R44 Ral R45 Raz R47 R33 014 c26 A Ll 72
5. o 45 C40 gt R47 IN4148 X X mute 5 R40 RAI 10k GND 4 1000k SZJ SZJ GND 1 D12 100uF R42 R49 848 2 8 Wd MS 1000k 1N5242B pi Z lt 10k 100k al 4 7 2CrLED 2CirLED g S ZA 8 5 asy 1 o 15 1N5242B SZ ToUlPind CM 4 4 4 4 4 1 NOT USED pomme d R21 4K7 3x IW 4 SHORT CIRCUIT PROTECT RIA 2 RBO RIC C6 pg T AS Ru R22 In5F n e 47R 53 4 42K2 MODULE Qu R23 4 4 R12 CONNECTOR ik SW DS i 6V R26 1N4735A Q10 iii 2N4401 12 1 1N4148 2 C20 UMS 3 D7 R27 1N5256B Il Ik 13 3 v 44 11 064 22 Vir NOT USED a RIOA lt lt R28 1 9 NOT USED OIR 732 RIA RIB RIC 14 SPK1 AU MAS QE D45 R3 POR CY NOT USED 9 T 7 T 9 R25 R29 T ZS O R Jumper cz QUICK FIT TERMINAL NOT USED TR 3x IW 15k 10 0 Tor USED 5 R31 D8 R30 1N4148 10098 4 e v e 4 is 47k 22 12 LI a SPK 2 1N4148 ANNI 1 4 s R32 c 22H RIS O R Jumper cw QUICK FIT TERMINAL T 3 IM pen 4 ES 100k T NOT USED 4 Radd 100nF i R9 8 R34 220k fl SD k h R3 o Ul NOT USED DET Amos 87 c32 ZN R5 231 CI FR 33k2 07 10uF DI Z 33 Los a 100nF T 10nF 6 UP 4 3AG FUSE KONA D2 GND MET TRANS PRI 1 25A SloBlo LIVE a To AC Feed lt ON H gt To Pow
6. 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 30 5 5 2 2UH ferrite bead 2 2mH choke 2 PCB mount fuse clips Glass 0 187 PCB fastons 0 250 PCB fastons PB10 faceplate Power cord Strain relief Power Transformer carbon carbon carbon carbon carbon carbon carbon carbon carbon carbon metal metal metal metal metal metal metal metal carbon carbon metal metal metal metal metal metal metal metal metal Log A Pot Lin B Pot SAFETY SAFETY SAFETY SAFETY SAFETY SAFETY Part Ref Designator Description Capacitors Film Caps may be used in any position EXCEPT C1 C2 30707 C1 200uF 50V 20 Electrolytic 30707 C2 200uF 50V 20 Electrolytic 30101 C3 220pF 50V 20 ceramic 30101 C4 220pF 50V 20 ceramic 30101 C5 220pF 50V 20 ceramic 30101 C6 220p 50V 20 ceramic 30527 C7 330nF 50V 5 film 30527 C8 330nF 50V 5 film 30527 C9 330nF 50V 5 film 30526 C10 220nF 50V 10 ceramic 30514 C11 47nF 50V 10 ceramic 30504 C12 100n 50V 10 ceramic 30514 C13 47n 50V 10 ceramic 30528 C16 220nF 50V 5 film 30528 C17 220nF 50V 5 film 30100 C18 330pF 50V 20 ceramic 30100 C19 330pF 50V 20 ceramic 30519 C20 100nF 50V 20 ceramic 30519 C21 100nF 50V 20 ceramic 30519 C22 100nF 50V 20 ceramic 30519 C23 100nF 50V 20 mono ceramic C30 N
7. SILKSCREEN FANCY Version 7 2 125 holes NOT thru plated 38 SCHEMATIC DIAGRAMS Preamp PCB version 6 3 7 0 3rd Order Hi Pass R27 Ria R16 DUALRCA LEVEL 604 REMOTE Pot 68 1 SkPOT SWSPDT Es D Rh R28 33k2 1 R12 C18 330pF 3 Gi 68 co GND m Cl9 330pF 3 R25 33k2 NOT USED 330nF 330nF 330nF TARA Lin RI R35 RIS Rat 137k 243k RCA CONNECTOR 604r R10 10k Binding Post RI Cl AKT C34 220pF 2nd Order Hi Pass LO PASS CONTROL 1 2nd Order LO PASS E 200uF ni FISV R33 RIR 20k POT cio 10 8 R R RS ur 9k09 13k7 45V R4 ER 15V CI 16 E L R3 RO y2 3 100k c4 CA 15V OUT c2 IN 220nF 220nF 200uF R2 R8 Cal C20 cn co 4k7 2k 220pF 220pF Pr 100nF 100nF 100nFj 100nF 2nd Order LO PASS Moved up 1 octave m 8 a 7 Or Jumper os R21 SWSPDT GAIN STAGE 5 iz 2 E z 9 R26 Un designated Connector O e O ai C30 To Pin 11 U1 U2 NOT USED A R22 100n prz 33b nsv 3 5k6 m LoPass Defeat Sw l4k 3 GND 4 GND g 5 SIG Bu i5 a SVG 5 15V 3 2 5 LM324 To Pin 4 U1 U2 4 7 Or Jumper NOT USED a NOT USED NOT USED RER NOT USED Title B10 PREAMP 6 3pcb 00232 17 Size Number Revision Tab
8. Signal to High level input Voltage measurements 15 3V at speaker output 3 Low Pass Set up Set Generator at 100 mV 100Hz Signal to Low level input Measure voltage at speaker output Voltage measurement Low Pass Pot Settin Output CW 11 4V CCW 2 19V 4 LFE Set up Set Generator at 100mV 200Hz Signal to Low level input Measure voltage at speaker output LFE switch Setting Output OFF 2 96V 3 ON 8 40V 3 See flow chart next page for diagnostics 22 PB10 PB10 Testing Procedure Cont PB10 POWER MODULE TESTING FLOW CHART CAUTION MODULE OUTPUT IS FLOATING AND IS NOT PROTECTED AGAINST A SHORT TO GROUND ALL TEST INSTRUMENTS CONNECTED TO THE OUTPUT MUST BE FLOATING ATTACH THE SCOPE PROBE TIP TO SPK and REFERENCE LEAD TO SPK START Resistance check no load between V V V O P V O P and O P to GND is gt 10K Replace Power up with no signal input LED RED i5 Check fuse transformer CMC rectifier yes C1 and C2 Check input of module wrt GND 0V D C Check C32 and Pre AMP Use scope to check switching frequency from the load 100KHz 10 yes MODULE OK END A 10mV signal may need from the input to trigger the Switch turn on Check V V 15V voltage at the module Check transformer lt gt CMC rectifier C1 C2 D1 yes D2 RI A B C R2 A B C Check 6V at the module
9. 10 ceramic 80 20 Electrolytic 80 20 Electrolytic 80 20 Electrolytic 80 20 Electrolytic 1w Zener 1w Zener 5w Zener 5 Sig Diode 1W 5w Zener 5 Sig Diode 5 Sig Diode 5 5w Zener Sig Diode 5w Zener Sig Diode Sig Diode N chnl FET PNP 600mA PNP 600mA NPN 600mA Quad OpAmp S53AMI amp module Male Connector Female Connector T 1 3 4 white diff Type T 1 3 4 white diff Type Gapped E core choke SAFETY SAFETY SAFETY SAFETY SAFETY Part 80102 80100 70323 80114 70324 70328 70325 80105 70305 80135 Ref Designator L2 L3 L4 CMC 3AG TYPE 3AG FUSE 0 187 Tabs 0 250 Tabs PB10 faceplate Power cord Strain relief TRX Description 2 2uH 0 R Jumper 0 R Jumper 2m2H 3AG PC CLIP 1 25A SloBlo MCI 5024 PREAMP section of PCB Version 7 2 Part Resistors 40405 40405 40406 40406 40406 40406 40717 40717 40409 40708 40454 40412 40709 40710 40711 40712 40441 40441 40713 40713 40109 40412 40405 40109 40412 40714 40715 40716 40451 40402 40707 Ref Designator R35 LEVEL LOW PASS Description 4k7 4k7 100k 100k 100k 100k 2k7 2k7 10k 57k6 45k3 33k2 68k1 11k3 1k3 243k 13k7 13k7 5k6 Or Jumper 5k6 Or Jumper 604 ohms 33k2 4k7 604 ohms 33k2 14k 9k09 60k4 137k 5k POT Dual 20k POT 5 Amp 100VA 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W
10. 26480 26732 26743 28291 30651 30686 10448 23991 25300 25883 25886 26483 26745 26747 28293 28294 30688 30748 10458 23993 25302 25303 25888 26486 26750 28296 30750 30930 11772 23997 25306 25307 25890 25891 26498 26752 26753 28298 30932 31025 11792 24004 25309 25893 25894 26503 26755 28300 31027 31072 11939 24010 25311 25896 26000 26510 26512 26757 26759 28302 28303 31074 31123 13128 24166 25313 25314 26002 26012 26514 26762 26768 28305 28331 31125 13296 24230 25333 25334 26014 26076 26517 26770 26771 28333 28343 31127 31139 14371 24874 24875 25341 26079 26520 26773 26778 28345 28354 31256 14508 24888 25345 26081 26781 27376 27399 28369 31771 14510 24902 25347 25348 26083 26783 27401 27503 28379 28689 35089 14519 24905 24907 25351 25352 26086 26087 26786 27532 28691 28697 35733 14674 24909 25358 26089 26091 26789 27553 28699 28708 36186 14822 24913 24914 25360 25361 26093 26094 26791 27624 27647 28710 28715 37400 15092 24919 25363 25364 26096 26097 26793 27649 27698 28717 28720 39339 15525 24924 2536825369 26099 26101 26795 26797 27701 27720 28722 28724 80749 15634 24926 25371 26103 26104 26799 26801 27722 27769 28726 28731 15644 15645 24928 24929 25375 26106 26804 27771 27774 28734 15649 24931 24932 25384 25386 26108 26807 27776 27852 28736 15654 24934 25391 25392 26110 26810 27854 27866 28738 28740 15657 24936 25394 26112 26813 27868 27911 28742 28744 15659 24939 25396 26115 26815 26816 27913 27999 28746 28750 15662 24944 25399 26118 26119 26820 28
11. RS GRD EE INAT744A MODULE MC14932 FUE m a AGR ve x BR RECT 1254 SloBlo xia RS604 Title p B10 PwrAmp 6 3 PCB 00232 18 Sie Number Revision D i 5 Date 20 Apr 3000 Sheet Tof 1 File TAPBIO sch Folder APBIO pwramp Rev 8 9 jsb rawn na iLL 40 a 3 4 5 6 7 8 9 10 n 12 13 14 15 LEDI 2 Preamp gt LEDI 2 Preamp gt R46 NJ SIGNAL LED amp AUTO MUTE R45 1090k ACE V LED LED Harness 1N4148 MEER R100 4 TLO64 Lr Dia A Z 2 2 NOT USED TEON U ig 1 i 5 Un designated Connector eit j T b t T Odi SCORRE gt MOLEX 2 MOLEX 2 To U1 Pin 11 11 luF 1N4148 N 25 2 Oz 15V 6
12. Use RCA type patch cords to connect the line level subwoofer outputs on your receiver or amplifier to the line level inputs on the subwoofer IMPORTANT Make sure that the LFE toggle switch on the subwoofer is in the Normal position Do not use the LFE RECEIVER Subwoofer Out position with Dolby Pro Logic only processors Note If your receiver or amplifier only has one subwoofer output jack then you may connect the subwoofer output on your receiver preamplifier to either the left or right line level input on the subwoofer It makes no difference which jack you choose Connect each speaker to the corresponding speaker terminals on your receiver or amplifier CROSSOVER FREQUENCY R D LINE LEVEL IN lt Make sure your receiver or processor is configured correctly Make sure that the subwoofer is configured as On Note for advanced users If your receiver processor has a built in low pass crossover filter for the subwoofer output then the LFE switch should be set to the LFE position to bypass the subwoofer s internal crossover 00232 5 PB10 Dolby Digital or DTS or Other Digital Surround Mode Connection Use this installation method for Dolby Digital DTS or other digital surround processors IMPORTANT Make sure that the LFE toggle switch on the subwoofer is in the LFE position Use the line level input jacks for the lo
13. as per instructions below 1 Set the unit on a padded surface and remove all external cables 2 On the amplifier faceplate remove the 10 Phillips mounting screws around the perimeter 3 Remove the amplifier assembly from the enclosure If the amp is supported correctly no other connectors need to be unplugged 4 Locate the Power Amp Module S53AMI see location on the following page It is the large black or gray component with a metal case On the solder side of the circuit board are 28 soldered connections NOTE See special handling instructions for S53AMI on the following page 5 Replace the amplifier assembly back into the cabinet replace the screws 6 Test the unit and confirm the original problem has been corrected Model Status See serial numbers on Replace Power Amp Module Pages 3 for factory Hum Buzz or Thumping S53AMI for symptoms modified units described in C only Serial numbers are located on the PB10 cabinet directly below the amplifier faceplate JBL Incorporated 250 Crossways Park Dr Woodbury New York 11797 516 496 3400 14 6V V O P 15V SD FR I P GND 15V JBL Incorporated N x o N Q A N N Nw om mm NY N m W E L ES ESET EJ EJ EZ EZ O O O A nm m Ln n W po O O A AG A A r mi R S53AMI POWER AMP MODULE S53AMI S64AMI Power Amp module SAFETY P
14. the rest of the system 00235 3 LFE Normal Switch Ordinarily placed in the Normal position but switch to LFE when playing Dolby DigitaL DTS or other digital surround modes see page 9 4 Phase Switch Changes the subwoofer s output to be in phase or 180 degrees out of phase with the program material 5 Crossover Frequency Sets the highest frequency the subwoofer will reproduce 6 Line Input Main Input connection to subwoofer preferred 7 Speaker In Jacks Main Input connection to subwoofer when line level subwoofer or pre amp output connectors are not available or when a high pass filter set at 150Hz to main loudspeakers is desired through the Speaker Output Jacks CROSSOVER FREQUENCY 8 Speaker Out Jacks Connected to main loudspeakers when the Speaker Input Jacks are used PB10 Speaker Connection When we designed the PB10 and PB12 powered subwoofers our goal was to offer the user the best possible performance combined with the most flexible and complete installation options Please look over the following three examples to determine which description best matches your system and follow the corresponding hookup instructions To use the binding post speaker terminals with bare wire unscrew the collar until the hole through the centerpost is visible under the collar Insert the bare end of the wire through the hole in the pos
15. wrt V 5 75V ox no yes Check D5 D6 R6 R7 A B C Check S D volt age at the module wrt V 5 Check D3 D4 R3 Q10 Q11 Q12 and SCP Use scope to check O P at module wrt GND 80 square wave shown yes Check LI L2 C10 C11 00278 3 23 PB10 Part PB10 Electrical Parts List PB10 POWER AMP section of PCB Version 6 3 7 0 Designator Semiconductors 60102 50100 50105 50112 50104 50112 50104 50104 50105 50101 50104 50113 50107 50104 50104 60157 60154 60154 60156 Capacitors 30706 30712 30502 30706 30502 30502 30526 30529 30508 30513 30502 30714 30715 30716 30717 30702 30505 30505 U1 D1 D10 D11 D12 D13 D14 D2 D3 D4 D5 D6 D7 D8 Q1 Q10 Q11 Q12 C1 C10 C11 C2 C20 C21 C22 C24 C25 C26 C27 C3 C32 C40 C41 C42 C6 CTA C7B CW CZ TLO64 RS604 1N4744A 1N5242B 1N4148 1N5242B 1N4148 1N4148 1N4744A 1N5256B 1N4148 1N4735A 1N5234B 1N4148 1N4148 2N5457 MPSA56 MPSA56 2N4401 4700uF 10uF 100nF 4700uF NOT USED 100nF 100nF 220nF 1n5F 10nF 3n3F 100nF 10uF 10uF 1uF 100uF 100nF 100nF 100nF NOT USED 6AMP 15V 12V 12V 15V 30V 6 2V 6 2V 25V 120V 120V 40V 50V 100V 50V 50V 50V 50V 50V 50V 50V 50V 50V 35V 16V 16V 16V 50V 100V 100V 24 Description Quad OpAmp BR RECT 1w Zener Zener Sig Diode Zener Sig Diode Sig Diode 1w Ze
16. 001 28067 28752 28754 15673 15674 24948 25402 26121 26124 26822 28069 28756 28821 15676 15677 24950 25406 26126 26825 28070 28823 29130 15679 24960 25408 26128 26827 28072 28073 29132 29142 15681 24986 25416 26130 26131 26829 28075 29144 29219 15683 24988 25419 26133 26134 26833 26834 28078 29221 29276 15692 24991 25421 26136 26137 26838 28087 29278 29280 15696 24994 25426 26139 26840 28092 28094 29282 29327 15702 24996 26141 26150 26522 26843 28096 28097 29329 29338 15705 24998 26152 26172 26525 26844 28099 29340 29379 16413 25001 26174 26528 26846 28101 28102 29381 29389 17723 25003 25005 26176 26185 26531 26850 28105 29391 29451 17740 25007 26187 26197 26533 26857 28108 29453 29455 18274 25015 26198 26201 26536 26874 28110 28114 29457 19665 25018 26203 26540 26541 26876 26880 28116 28117 29459 29528 20470 25020 26206 26543 26544 26882 28119 28120 29530 29531 21026 25025 26209 26546 26554 26885 26886 28122 28123 29533 29605 21124 25029 25030 26211 26556 26557 26888 26894 28125 29607 29624 21126 25033 26213 26214 26560 26913 28130 28131 29626 29634 21637 25037 26217 26565 26915 26917 28133 29636 29790 22892 25039 26235 26568 26922 26935 28137 22894 22895 25041 26238 26573 26967 28140 28150 22901 25043 25056 26242 26587 26984 27001 28152 28158 22905 22906 25058 25115 26244 26599 27010 27033 28160 28161 22908 25117 26246 26604 27100 28167 22913 25119 25142 26251 26252 26614 26615 27103 27104 28172 22917 25144 25147 26254 2625
17. 02 30505 30505 30712 30502 30502 30502 30526 30529 30508 30513 30714 30715 30716 30717 Ref Designator C1 C2 C3 C6 C7A C7B C10 C11 C20 C21 C22 C24 C25 C26 C27 C32 C40 C41 C42 CW CZ Semiconductors 50105 D1 50105 D2 50101 D3 50104 D4 50113 D5 50107 D6 50104 D7 50104 D8 50112 D10 50104 D11 50112 D12 50104 D13 50104 D14 60157 Q1 60154 Q10 60154 Q11 60156 Q12 50100 DIODE BRIDGE 60102 U1 60301 MODULE Miscellaneous 70322 LED 3 108326 LED Harness 50106 On Harness 50106 On Harness 80101 L1 Description 4700uF 4700uF 100nF 100nF 100nF 100nF 10uF 100nF NOT USED 100nF 100nF 220nF 1n5F 10nF 3n3F 10uF 10uF 1uF 100uF NOT USED NOT USED 1N4744A 1N4744A 1N5256B 1N4148 1N4735A 1N5234B 1N4148 1N4148 1N5242B 1N4148 1N5242B 1N4148 1N4148 2N5457 MPSA56 MPSA56 2N4401 RS604 TLO64 53 Molex 2 Header Molex 2 Socket Bi Color LED Bi Color LED 110uH 50V 50V 50V 50V 100V 100V 100V 50V 50V 50V 50V 50V 50V 50V 35V 16V 16V 16V 15V 15V 30V 6 2V 6 2V 12V 12V 25V 120V 120V 40V 6AMP 2 Legged 2 Legged 29 80 20 Electrolytic 105C 80 20 Electrolytic 105C 20 mono ceramic 20 ceramic 20 ceramic or film 20 ceramic or film 20 BP NP Electr DF 1 20 ceramic 20 ceramic 20 ceramic 10 ceramic 10 ceramic 10 ceramic
18. 14 3AG FUSE 1 25A SloBlo Glass 70324 0 187 Tabs 7 0 187 PCB fastons 70323 PCB mount Fuse 2 PCB fuse clips 70325 PB10 faceplate PB10 faceplate 80105 Power cord Power cord 70305 Strain relief Strain relief PB10 PREAMP section of PCB Version 6 3 Semiconductors 60100 U1 LM324 LM324 op amp 60100 U2 LM324 LM324 op amp Capacitors Film Caps may be used in any position EXCEPT C1 C2 30707 C1 200uF 50V 0 2 BP Electrolytic 30526 C10 220nF 50V 0 1 mono ceramic 30514 C11 47nF 50V 0 1 mono ceramic 30504 C12 100n 50V 0 1 mono ceramic 30514 C13 47n 50V 0 1 mono ceramic 30528 C16 220nF 50V 0 05 film 30528 C17 220nF 50V 0 05 film 30100 C18 330pF 50V 0 2 mono ceramic a 30100 C19 330pF 50V 0 2 mono ceramic 30707 C2 200uF 50V 0 2 BP Electrolytic 26 PB10 Part 30519 30519 30519 30519 30101 30101 30101 30101 30527 30527 30527 Resistors 40405 40409 40708 40454 40412 40709 40710 40711 40712 40441 40441 40405 40713 40713 40109 40412 40405 40109 40412 40406 40714 40715 40716 40451 40406 40406 40406 40717 40717 PB10 Electrical Parts List Cont PB10 PREAMP section of PCB Version 6 3 7 0 Designator C20 100nF C21 100nF C22 100nF C23 100nF C3 220pF C30 NOT USED C4 220pF C5 220pF C6 220p 330nF C8 330nF C9 330nF R1 4k7 R10 10k R11 57k6 R12 45k3 R13 33k2 R14 68k1 R15 11k3 R16 1k3 R17 243k R18 13k7 R19 13k7 R2 4k7 R20 5k6 R21 Or Jumper R22 5k6 R23 Or Jumper
19. 2B IT R48 amp R49 changed to 4k7 To UI Pin4 cu l g NOT USED 22008 22 G R21 4K7 3x 1W di SHORT CIRCUIT PROTECT R7A 2 RIB 2 RIC C6 7 r Her sk6 lt 5 6 Q5k6 TT 47R 100nF 1N5234B m Qui L R12 CONNECTOR 3 Kmrsass AV SW D5 92 R26 1N4735A Q10 nii 2N4401 IN4148 C20 MPSAS6 X Ik J 4 4 6k8 i NOT USED RIOA lt RIOB lt RI0C Wire NOT USED 0 IR 0 1R 0 IR 11 R24 RIA RIB RIC LA SPK 1 20 2k2 Qo NNAN o NOT USED T 0 R Jumper CZ QUICK FIT TERMINAL NOT USED 3x 1W isk Cl0 cu R31 10uF NOT USED 1N4148 43k 13 SPK2 E 1N4148 0 R Jumper cw QUICK FIT TERMINAL NOT USED NOT USED D C21 3 100nF 3AG FUSE MCI 5024 TO TRANS PRI 1 254 SloBlo LIVE D2 TRX Toac lt 4 gt e To Power Cord C22 x 100nF To GND QUICK FIT TERMINAL QUICK FIT TERMINAL ToAC lt gt gt To Power Cord Part No VERSION 7 2 PB10 PWRAMP Date 20 70 2001 Drawn MS LL Rev Sheet 5 of 9
20. 4 230 Vrms Normal operation MOMS required QA Test Type Class AB D other n a n a Class D Preferred Sink required for Class AB Load Impedance speaker Rated Output Power THD Rated Power THD 1 Wat DC Offset 101 20 Speaker Outputs s Damping factor 50 DF 35 Watts 50Hz Input Sensitivi EEEE elio Se ee Input Frequency L amp R LFE i 1 28 V 2dB T Single i dri SNR A Weighted relative to rated power A Weighting filter SNR unweighted 80 dBr 80 relative to rated power 22k filter SNR rel 1W unweighted _ 6 dBr 60 jrelativeto 1wOutput 22k filter Volume max using DVM or A P Residual Noise Floor 1 mVrms 2 BW 20 KHz Volume max w A P Swept alle Bandpass Measurement Line Residual Noise Floor 1 5imVrms max 2 freq harmonics BW 20Khz Input Impedance ao 4 ees Ue Ae MENOS Line Input Speaker Hi Level Input Filters loci ile ti Speaker in LP_2nd order varia BOASOJHZ 0 Subsonic filter HPF fixed LFE Low pass 2nd order fixed 200 gt LP lt 1K Hz Single input driven E106 E74 Speaker out HP filter Left amp Right 200 Hz 10 Speaker input Spkr out 4 Ohms Left 8 Right 100fHz 10 Speakerinput Spkr out 8 Ohms Limiter THD at Output Power Maximum Output Power Maximum THD as a result of limiting Signal Sensing ATO Auto Turn On yes no YES functional Auto on selection switc
21. 40719 R2A 2k2 1W 5 metal SAFETY 40719 R2B 2k2 1W 5 metal SAFETY 40719 R2C 2k2 1W 5 metal SAFETY 40702 R3 6M8 25W 596 carbon 40725 R4 15k 0 5W 5 metal SAFETY 40412 R5 33k2 25W 1 metal 40111 R6 47 ohms 25W 5 carbon 40728 R7A 5k6 1W 5 metal SAFETY 40728 R7B 5k6 1W 5 metal SAFETY 40728 R7C 5k6 1W 5 metal SAFETY 40729 R8A 4k7 1W 5 metal SAFETY 40729 R8B 4k7 1W 5 metal SAFETY R9 NOT USED 40105 R10A 0 1 ohms 5W 5 metal 40105 R10B 0 1 ohms 5 metal 40105 R10C 0 1 ohms 5W 5 metal 40420 R11 1k 25W 5 carbon 40420 R12 1k 25W 5 carbon 40417 R13 47k 25W 5 carbon 40718 R14 3k3 25W 5 carbon 40406 R15 100k 25W 5 carbon 40405 R21 4K7 25W 5 carbon 40720 R22 42K2 25W 1 metal 40721 R23 237k 25W 1 metal R24 NOT USED R25 NOT USED 40722 R26 6k8 25W 596 carbon 40723 R27 2k2 2W 5 metal SAFETY 40110 R28 732 ohms 0 5W 1 metal 40110 R29 732 ohms 0 5W 1 metal 40723 R30 2k2 2W 5 metal SAFETY 40417 R31 47k 25W 5 carbon 40417 R32 47k 25W 5 carbon 40427 R33 23k7 25W 1 metal 40724 R34 8k87 25W 1 metal 40407 R35 220K 25W 5 carbon 40420 R40 1k 25W 5 carbon 40701 R41 1000k 25W 5 carbon 40409 R42 10k 25W 5 carbon 40701 R43 1000k 25W 5 carbon 40406 R44 100k 25W 5 carbon 40415 R45 470K 25W 5 carbon 40701 R46 1000k 25W 5 carbon 40409 R47 10k 25W 5 carbon 40405 R48 4 7k 25W 5 carbon 40405 R49 4 7k 25W 5 carbon 40427 R50 2k2 25W 5 carbon 28 Part Capacitors 30706 30706 30502 307
22. 5 26624 26625 27122 27126 28177 22927 25149 25152 26266 26627 27142 27143 28181 22933 25154 25156 26273 26629 27148 27149 28184 25158 25159 25436 26278 26632 27151 28186 28187 25161 25691 26282 26638 27153 28193 25164 25694 26286 26641 26643 27190 28196 25168 25698 25699 26384 26645 27192 28202 28203 25171 25704 26388 26655 27196 27273 28207 25174 25706 26390 26391 26658 27275 27277 28211 25179 25710 26399 26400 26662 27279 27312 28215 25185 25712 25713 26402 26665 27314 27329 28217 28218 25187 25715 25719 26405 26406 26669 27331 27351 28220 28221 25189 25721 25730 26408 26409 26671 27353 27370 28223 25194 25732 26411 26673 27372 28227 25214 25734 26413 26415 26675 26677 27374 28231 28234 25218 25219 25735 26417 26680 28236 28237 29792 29860 25229 25737 25739 26419 26686 28239 28241 29862 29915 25234 25236 25742 25745 26421 26692 26694 28243 29917 30062 25238 25243 25747 25770 26432 26696 26697 28245 30064 30133 25247 25249 25772 25777 26438 26439 26700 28250 30152 30288 25251 25252 25779 25791 26443 26702 28256 30290 30345 25256 25257 25793 25833 26451 26452 26706 28259 30347 30413 25261 25263 25835 25845 26457 26458 26708 28264 28267 30415 30490 25265 25267 25847 25850 26460 26462 26713 26716 28270 28271 30492 30524 JBL Incorporated 250 Crossways Park Dr Woodbury New York 11797 516 496 3400 16 PB10 Exploded and Packaging Views IMAGE REDUCED 17 a R N 10 Woofer Foot Outer Carton Owner s
23. ART 6V V O P 15V SD FR UP GND 15V NOTE THE FOLLOWING PROCEDURES MUST BE FOLLOWED WHEN INSTALLING NEW S53AMI S64AMI AMP MODULES FAILURE TO FOLLOW ONE OR MORE OF THESE STEPS MAY RESULT IN THE INSTANT DESTRUCTION OF THE MODULE WHEN POWERED UP 1 Align white indent marker on Amp Module with indent marker on main PCB alternately observe position of label on the top of the module incorrectly replacing the Module 180 in the PCB slot will result in its destruction 2 All AC powered test instruments meters oscilloscopes etc must have a floating ground i e be connected to an isolation transformer 3 Align and position the Amp Module before soldering 4 Attach the amp Module with the mounting screws before soldering or powering up 5 Use only rosin core or non acid core solder thoroughly de flux the surfaces after soldering If the new S53AMI S64AMI Amp Module has larger mounting hole s in the case and the stock screws no longer will fit and screws of the proper type cannot be obtained locally order 2 part 608015 screws 2 partit 60301N nuts 250 Crossways Park Dr Woodbury New York 11797 516 496 3400 15 FACTORY MODIFIED PB 10 SERIAL NUMBERS 1953 23000 25270 25272 25852 25864 26465 26718 26720 28283 30526 30533 7720 23896 25276 25866 25868 26474 26722 26725 28286 30535 30625 8579 23904 23905 25278 25291 25870 26477 26729 26730 28288 30627 30649 10145 23989 25294 25297 25874 25881 26479
24. B10 TESTING PROCEDURE A Power Amp Section Resistance from O P of the module to GND should be gt 1 NO LOAD Check Resistance from V of the module to V of the module should read gt 4k Resistance from V of the module to O P of the module should read gt 1M __ Resistance from V of the module to O P of the module should read gt 1M 2 Power Up LED RED With a 5mV signal to Low level input LED should change to GREEN Voltage measurements DVM an nt n LED 3 D C Operation Voltage measurements DVM on Power Amp Module S D And This Point pw Get this 45 75 Reading 4 Check Switching Frequency Oscilloscope Use scope EITHER USES AN ISOLATION TRANSFORMER OR ATTACHES THE PROBE TIP TO SPK and REFERENCE LEAD TO SPK 10Mv signal may need from the input to trigger the Switch frequency turn on Reading 100kHz 10 1Vpp B Pre Amp Section Low Level Input Sensitivity 00278 1 Set up Turn level Low Pass Pot Fully CW and LFE switch off Generator Set at 100mV Q 50Hz Signal to Low level input 21 PB10 PB10 Testing Procedure Cont Voltage measurements OP AMP SPEAKER Ut uem U1 1 U2 1 U1 14 U2 14 U2 8 PU1 14 PU1 8 O P 180 266mV 325mV 404mV 451mV 451mV 1 33V 6 37V 5 72V 15 3V 2 High Level Input Sensitivity Set up Turn level Lo Pass Pot Fully CW and LFE switch off Set Generator at 1 09V 50Hz
25. C1 2 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 C10 10uF 100 volt NPE low df radial S64AMI Power output module Use only factory replacement Faceplate Faceplate Use only factory replacement Air leak cover Use only factory replacement CMC Use only factory replacement L1 Use only factory replacement Fuse PCB Use only factory replacement 00232 21 Main PCB Use only factory replacement PB10 BASIC SPECIFICATIONS PB10 Subwoofer Output Power Driver Frequency Response Inputs Outputs Low Pass Frequency High Pass Frequency Dimensions H x W x D Weight Refinements may be made on occasion to existing products without notice but will always meet or exceed original specifications unless otherwise stated 150 watts RMS 10 Woofer 27Hz to Low Pass Frequency setting Line Level option LFE Speaker Level Speaker level fixed frequency 150Hz Variable from 50Hz 150Hz 150Hz when using Speaker Level Output 14 x 14 x 15 356mm x 356mm x 381mm with feet 16 x 14 x 15 406mm x 356mm x 381mm 35 Ib 15 9kg PB10 DETAILED SPECIFICATIONS PB10 Subwoofer JBL PB 10 150W Powered Sub Amp LINE VOLTAGE Hi Lo Line Nom Unt 108 132 120 Vrms Normal Operation EU 230vac 50 60Hz 207 26
26. Check 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 5mA 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 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 List of SafetyComponents Requiring ExactReplacements F1 Fuse SLO BLO 1 25A 250V UL approved PWRCORD SPT 2 or better with polarized plug UL approved wired with the hot side to fused side Use with factory replacement panel strain relief only TRX Transformer Use only factory replacement BR RECT Bridge diode Use only factory replacement
27. JBL PowerBass Series PB10 Subwoofer SERVICE MANUAL JBL Incorporated 250 Crossways Park Dr REV2 10 2001 Woodbury New York 11797 PB10 TABLE OF CONTENTS Safety Information s uu canna er We tl vices deni St dag psu Med enema ui 3 Basic de eus u uu iu kunaqa usay Gas Saa 4 Detailed Specifications 5 Controls and their Function 6 Speaker Connection 7 eil ie LA 10 Troubleshooting Z mca 11 Test Setup and Procedure sees 12 Service Bulletin JBL 2001 03_ 13 Service Bulletin JBL 2001 04 14 Exploded and Packaging 17 Amplifier Exploded View pp 18 Amplifier Faceplate 19 Integrated Circuit Diagrams 20 Testing Procedure 21 Electrical Parts List PCB version 6 3 7 0 24 Electrical Parts List PCB version 7 2 28 Printed Circuit Boards PCB version 6 3 7 0
28. L LINE LEVEL Por SOURCE T FREQUENCY m AME Powerbass PB10 e PB10 or PB12 LOR UNDER TEST une urn e FoR LFE use LorR AMPLIFIER L HIGH LIVEL IN g i L SPEAKER SPEAKER LNEL LEVEL OUTPUT OUT FROM AMPLIFIER 00229 General Function UUT Unit Under Test 1 T 8 Connect one line level input cable RCA from signal generator to either Right or Left Level input on UUT VOLUME control should be full conterclockwise Turn on generator adjust to 100mV 50 Hz Plug in UUT LED s on the front panel may be either Red or Green Turn VOLUME control full clockwise Low Pass control should be set fully clockwise 150 LED should turn Green immediately bass response should be heard and felt from port tube opening Turn off generator turn VOLUME control fully counterclockwise disconnect RCA cables Connect one pair of speaker cables to either high level input terminal on UUT Cables should be connected to an integrated amplifier fed by the signal generator Turn on generator and adjust so that speaker level output is 1 0V 50 Hz Turn VOLUME control full clockwise Green LED should light immediate bass response should be heard and felt from the port tube opening Sweep Function 1 2 Follow steps 1 4 above using a sweep generator as a signal source Sweep generator from 20Hz to 300Hz Listen to the cabinet and drivers for any rattles clicks buzzes or any other noises If any unusual noise
29. MODULES FAILURE TO FOLLOW ONE OR MORE OF THESE STEPS 16 2 MAY RESULT IN THE INSTANT DESTRUCTION OF THE MODULE WHEN POWERED UP V 17 3 V 1 Align white indent marker on Amp Module with indent 18 4 marker on main PCB alternately observe position of label z on top of the module incorrectly replacing the Module O P 19 5 180 in the PCB slot will result in its destruction 20 6 2 All AC powered test instruments meters oscilloscopes LJ etc must have a floating ground i e be connected to an V 21 7 V isolation transformer 3 Align and position the Amp Module before soldering 22 5 4 Attach the amp Module with the mounting screws before 15V 23 9 415V soldering or powering up 5 Use only rosin core or non acid core solder thoroughly SD 24 Lj 10 SD de flux the surfaces after soldering 25 11 FR If the new S53AMI S64AMI Amp Module has larger mounting hole s in the case and the stock screws no longer will fit WP 26 12 I P and screws of the proper type cannot be obtained locally Hm order GND 27 13 2 part 60301S screws 15V 28 14 15V 2 part 60301N nuts 10 Q11 MPSA56 U1 U2 Lm324 TLO64 N Chan FET Q1 2N5457 Q10 Q11 Q12 2N4401 AW SB 1 ch 3 Collector 3 Collector L lt gt P E Bs ay gt ase ase 1 eT Ts 4 Ts Te 7 D 1 A 1 Emitter 1 1 Emitter OUT1 1 N2 OUT 2 G 3 3 00227 20 PB10 PB10 Testing Procedure JBL P
30. Manual 120V Amplifier Complete Foot Screw Foam corners package drawing 7 8 Top Corner 4 carton Bottom Corner 4 carton eo N N MECHANICAL 8 PACKING PARTS LIST 203400 203410 203420 203430 Not For Sale 203411 203460 203470 PB10 Amplifier Exploded View 18 LO N N e e LEGEND 1 Dual RCA jack 108324 2 Power Transformer 80135 3 Level Pot 40402 4 Low Pass Filter Pot 40707 5 Fuse Clips 2 70323 6 1 25A SLO BLO Fuse 3ag 80114 PB10 LEVEL KNOB 70313 LFE DEFEAT SWITCH 70150 PB10 FACEPLATE 70325 HI LEVEL I O IN 108116 Amplifier Faceplate Parts LEVEL LFE PHASE 0 CROSSOVER FREQUENCY 50 Hz Max NORMAL 180 150Hz Powerbass PB10 L LINE LEVEL IN ron LFE usELorR CSA 22 2 UL 1490 ELIOLL ET 69 v TZ JBL INC NORTHRIDGE CA U CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN quipment to ri 19 HIGH LIVEL IN HIGH LIVEL OUT 120V 60 Hz 180W 10 00239 PHASE SWITCH 70150 CROSSOVER FREQUENCY KNOB 70313 HI LEVEL I O OUT 108116 STRAIN RELIEF 70305 POWER CORD 80105 PB10 Integrated Circuit Diagrams S53AMI S64AMI Power Amp module SAFETY PART NOTE THE FOLLOWING PROCEDURES MUST BE FOLLOWED WHEN INSTALLING NEW S53AMI S64AMI 46V 15 1 46V AMP
31. OT USED Semiconductors 50104 D50 1N4148 5 Sig Diode 50104 D51 1N4148 5 Sig Diode 50104 D52 1N4148 5 Sig Diode 50104 D53 1N4148 5 Sig Diode 50104 D54 1N4148 5 Sig Diode 50104 D55 1N4148 5 Sig Diode 60100 U1 LM324 LM324 Quad Op Amp 60100 U2 LM324 LM324 Quad Op Amp Miscellaneous 70150 LP DEFEAT SW SW SPDT mini Toggle 70150 PHASE SWITCH SW SPDT mini Toggle 108116 HI LEVEL I O OUT Binding Post 108116 HI LEVEL I O IN Binding Post 108324 Li Ri RCA connector 90 Deg DUAL RCA yellow 31 PB10 PCB version 6 3 7 0 Cont FANCY Version 6 3 0000000 0 0 N lt DI m gt m N a Fai no wt VAP Ar Boato wee boli 0000000 000000 00 0 00000 ers63 gtl Board layer 1 Scale 900 O COMP SIDE 00232 16 O 33 2 Uors49n AJNUJ 115 9 uorsaen 0008 INV 229 028929 DEU n dNVYMd f ssa 069 by UBU 25 abe LL prm 6 d 2 o o 2 z 929 a NO s en 3 5 ord z d M Gal p z Oba o m bed Tea O m D 019 u 390149 30010 25 93 pr ery m zd ed 923 f b ced z D 5 N O 1 aow TG A eo cO sora c c ami 29414 H C m 2 oe o 919 azd gt a 219
32. R24 604r R25 33k2 R26 4k7 R27 604r R28 33k2 R3 100k R30 14k R33 9k09 R34 60k4 R35 137k R4 100k R5 100k R6 100k R8 2k7 R9 2k7 Miscellaneous 108116 108116 108324 40402 40707 70150 70150 HI LEVEL HI LEVEL I O RCA CONNECTOR LEVEL 5k POT Low Pass 20k POT LFE Defeat SW SPDT Phase Switch SW SPDT 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W OUT IN 27 Description 0 2 mono ceramic 0 2 mono ceramic 0 2 mono ceramic 0 2 mono ceramic 0 2 mono ceramic 0 2 mono ceramic 0 2 mono ceramic 0 2 mono ceramic 0 05 film 0 05 film 0 05 film 0 05 carbon 0 05 carbon 0 01 carbon 0 01 metal 0 01 metal 0 01 metal 0 01 metal 0 01 metal 0 01 metal 0 01 metal 0 01 metal 0 05 carbon 0 05 carbon 0 05 carbon 0 01 metal 0 01 metal 0 01 metal 0 01 metal 0 01 metal 0 05 carbon 0 01 metal 0 01 metal 0 01 metal 0 01 metal 0 05 carbon 0 05 carbon 0 05 carbon 0 05 carbon 0 05 carbon Binding Post Binding Post DUAL RCA yellow 0 2 Log A Pot 0 2 Lin B Pot mini Toggle mini Toggle 00232 12 PB10 Electrical Parts List POWERAMP section of PCB Version 7 2 Part Ref Designator Description Resistors 40719 R1A 2k2 1W 5 metal SAFETY 40719 R1B 2k2 1W 5 metal SAFETY 40719 R1C 2k2 1W 5 metal SAFETY
33. SED 15V 5k6 3 o a z NOT USED S 11 2 E i To Pin 4 U1 U2 d LEDI lt Zi 5 Or Jumper NOT USED Q USED i 42 Part No VERSION 7 2 PB10 PREAMP Date 20 Jun 2001 Drawn MS LL Rev 1 Sheet 1 of 2 N R8A 4k7 1N4744A 4700uF DIODE BRIDGE RS604 3m6H 43 CMC cx Me Not Used TRANSFORMER IS MOUNTED ON FACEPLATE AC T CIA z 100nF GND L QUICK FIT TERMINAL QUICK FIT TERMINAL QUICK FIT TERMINAL 3 5 6 7 8 9 10 11 12 13 14 15 Power Amp PCB version 7 2 i R46 100 LEDI 2 Preamp gt SIGNAL LED amp AUTO MUTE 5 LED3 LED Harness 1N4148 CH Bsa DI4 B I EB i i3 E OnHarness Harness CONN2 2k2 DII MOLEX2 MOLEX2 3 c To Ul Pin 11 luF 1N4148 MER 4 w w ISV 15 ca xi R47 og mute ion 10k 7 GND D12 100uF LA Ze GND u R42 R44 R48 2 Clr LED 2 Cir LED ZE 1N5242B 4k7 6 SIG DIO 10k 100k 15V INS24
34. VEL IN For LFE use L or R L HIGH LEVEL IN 120V 60Hz 160W POWER UBL PowerBass PB12 00232 7 PB10 Phase Control 0 27 Phase The Phase Control determines whether the subwoofer s piston like action moves in and out in phase with the main speakers or opposite the main speakers There is no correct or incorrect setting Proper phase adjustment depends on several variables such as subwoofer placement and listener position Adjust the phase switch to maximize bass output at the listening position Remember every system room and listener is different There are no right or wrong settings this switch offers the added flexibility to adjust your subwoofer for optimum performance for your specific listening conditions without having to move your speakers TROUBLESHOOTING If you used the high level speaker inputs and there is no sound from any of the speakers Check that receiver amplifier is on and source is playing Check that powered subwoofer is plugged into and active electrical outlet and is switched on Check all wires and connections between receiver amplifier and speakers Make sure all wires are connected Make sure none of the speaker wires are frayed cut or punctured Review proper operation of your receiver amplifier If there is low or no bass output e Make sure the connections to the left and right Speaker Inputs have the correct polarity and
35. er Cord To GND QUICK FIT TERMINAL QUICK FIT TERMINAL To AC Retum lt gt gt To Power Cord 1N4744A TRANSFORMER IS MOUNTED ON FACEPLATE AC Feed CA O QUICK FIT TERMINAL GND QUICK FIT TERMINAL 2m2H OWE AC Return O QUICK FIT TERMINAL RSA AKT 4700uF Part No VERSION 7 0 PB10 PNRAMP Date 14 Feb 2001 Drawn MS LL Rev Sheet 5 of 2 2 3 4 5 6 7 8 9 10 n 12 13 14 15 41 N w 10 Preamp PCB version 7 2 3rd Order Hi Pass R27 a R16 DUALRCA LEVEL 5 sw SPDT gt R12 2 VA alia m 9 b 3 5 A ha 3 NOT USED GIACE 330nF 330nF 330nF LM324 R13 R35 RIS id 33k2 137k 11k3 243k RCA CONNECTOR 604r 1N4148 1N4148 144148 14148 Binding Post RI CI 2nd Order Hi Pass LO PASS CONTROL 1 2nd Order LO PASS R33 R18 20k POT T I 3 9k09 13k7 2 RO C17 C16 R19 20k POT 14 13k7 12 220nF 220nF 200uF R2 RS INANG UNAIA I C20 C23 c2 LO PASS CONTROL 2 4k7 2k7 220pF 220pF Eon 100nF 100nF 100nF 100nF Wak Ea R20 5k6 2nd Order LO PASS Moved up 1 octave z LED2 Or Jumper o 5 8 R21 LP Defeat Sw GAIN STAGE PRES SW SPDT 2 5 ca z l5 NOT USED O Q 3 lt oe C30 To Pin 11 U1 U2 amp 190 NOT U
36. ghest frequency at which the subwoofer reproduces sounds If your main speakers can comfortably reproduce some low frequency sounds set this control to a lower frequency setting between 50Hz 100Hz This will concentrate the subwoofer s efforts on the ultradeep bass sounds required by today s films and music If you are using smaller bookshelf speakers that do not extend to the lower bass frequencies set the low pass crossover control to a higher setting between 120Hz 150Hz This control is not used when the LFE switch is in the LFE position from green to red after the input signal to the subwoofer is removed Due to JBL s unique high output high efficiency amplifier design power consumption is minimal when the subwoofer is not receiving a signal The PB10 room size subwoofer placement type of main speakers and listener position Adjust the subwoofer level so that the volume of the bass information is pleasing to you 4 LEVEL hiin LFE NORMAL PHASE 180 CROSSOVER FREQUENCY Hm PowerBass PB10 L R bee LINE LEVEL IN For LFE use L or R HIGH LEVEL x IN 120V 60Hz 160W UBL PowerBass PB10 CAUTION I 10 must be unplugged if you do not wish to leave it in auto standby mode LEVEL 2 Li hiin LFE NORMAL PHASE 123 a CROSSOVER FREQUENCY PowerBass PB12 L R LIME LE
37. h in Auto ROSE RE c c c c c C j Input tesi frequency ATO Level LFE Input ATO Level Speakerin mv funcional S S A ATO Turon time functional T Auto Mute Tum OFE Time Te mmues 1 ransients Pops ATO Transient Q Speaker Outputs ere Tum on Transient Speaker Outputs AC Line cycled from OFF to ON 5 Efficienc Nominal Line voltage 120 VAC 230 VAC Stand by Input Power 15 Watts 18 nom line voltage 0 Power Cons rated power 115 Watts 120 nom line voltage 75 Watts 4 Ohms nominal line voltage Protection Short Circuit Protection YES functional Direct short at output Thermal Protection YES functional 1 8 max unclipped Power jq DC Offset Protection YES DC present at Speaker Out leads A Line Fuse Rating US version Amps 1 5 or Slo Blo 250 V Internal fuse A EU Amps TBD Type T or Slo Blo 250 V External fuse with UL SEMKO rated holder 2 PB10 PB10 Subwoofer Controls and their Function 1 Power These lights will be red when the unit is Front Pa nel plugged in and not receiving a signal when the PB10 receives a signal the lights will cycle to GREEN If no signal is received after 10 15 minutes the lights will cycle back to RED standby until a signal is present again 2 Level Control The subwoofer Level Control PB10 located on the rear panel adjusts the volume of the subwoofer relative to
38. les particularly in parallel with AC power cords may induce hum in the audio cables Check audio cables for defects broken ground connections or replace low quality cables Try plugging the AC power cord from the subwoofer into a different AC service outlet other than the outlet the rest of the audio equipment is plugged into B Mild Audible Hum under all circumstances when power cord is plugged in outlet Hum level does not change whether the LED s are Red or Green or input cables are connected or disconnected Level control adjustments do not change the hum level This is a mechanical hum caused by the power transformer in the subwoofer Note that a slight hum within design limits may be noticeable in a very quiet room when you are close to the unit This is acceptable within the PB10 s product and price category to most customers but not to others If the mechanical hum is unacceptable to the customer then replace Power Transformer JBL part 80135 C Loud Hum under all circumstances lt may be louder when LED s are Green vs Red it may be affected by the position of the Level control The subwoofer may thump or pop approximately every 10 seconds Reset the digital subwoofer amplifier by unplugging the PB10 AC power cord Wait 30 seconds then plug AC power cord back in Repeat this 2 3 times if necessary For C only If the unit still does not function correctly then replace Power Amp Module S53AMI JBL part 60301
39. lifier faceplate remove the 10 Phillips mounting screws around the perimeter 3 Remove the amplifier assembly from the enclosure If the amp is turned and supported correctly no other connectors need to be unplugged 4 Locate Zener Diode 010 and Resistor R42 22k See illustration These parts must be swapped i e R42 soldered into the D10 location and D10 soldered into the R42 location VERY IMPORTANT Observe polarity on D10 in new location 5 Replace amplier test subwoofer to assure the unit goes into the standby mode 10 15 minutes after removing the Audio input signal mea Stu Swap locations Aletia numbers Unit may not switch to Standby Zener Diode D10 affected mode Resistor R42 22 Observe D10 polarity JBL Incorporated 250 Crossways Park Dr Woodbury New York 11797 516 496 3400 13 JBL Service Bulletin Service Bulletin JBL2001 04 May 2001 This is considered a Minor repair To JBL Service Centers Models PB10 Subject Hum Buzz or Thumping In the event you receive a PB10 subwoofer complaint There is an audible hum or buzz or the subwoofer thumps or pops every 10 seconds then review the conditions below to determine the most effective solution A Audible Hum with unit on Green LED is ON hum disappears completely when the connecting input cables RCA or Speaker Level are disconnected Very long runs of line level input cab
40. loid 5 Date 20 Apr 2000 Sheet of 1 File 10 sch Folder APB10 preamp Revs kdhrawn By MS LL 1 2 3 4 39 Power Amp PCB version 6 3 T T z T 3 T 4 5 T 5 7 T 5 5 T SEDI Preamp gt EDI Preamp gt SIGNAL LED amp AUTO MUTE NotUsed w LED LED Hamess 1N4148 RM R50 DIA Lyco NOT USED 2 2 Un designated Connector Y da nne ums MOLEX2 MOLEX2 xs To U1 Pin 11 1N4148 O 15V 6 INA148 BO A 5 3 mite 5 R43 1N5242B m GN Dio sze sze Ne Diz 100uF 1000 ub Ik 1000k pu iod INS242B x 15k lt 10k 2CHLED 2CIrLED oz Asy 4 245457 NOT USED 3x IW SHORT CIRCUIT PROTECT RTB RIC 58 i 5x6 amp 5k6 5k6 ATR 1N5234B 100nF amp Bd CONNECTOR AV SW Ds TN4735A 1N4148 MPSAS6 D7 R27 IN5256B s 2k2 NOT USED R28 NAA 01R 732 R R RIC 1 2k2 LN CESSIT OP Ne NOT USED R25 R29 Ki Oder ARE da WA E 10 F E sa NOT USED RA u DE K be IN4148 100nF BE 12 LI 15 R32 AU AS Z 47k EE 100k NOT USED 100nF 10 JB gt 7 NOT USED Pi
41. ner w Zener Sig Diode 1W w Zener Sig Diode Sig Diode N chnl FET PNP 600mA PNP 600mA NPN 600mA 80 20 Electrolytic 105C 0 2 BP NP Electr DF lt 1 0 2 mono ceramic 80 20 Electrolytic 105C 80 20 80 20 80 20 80 20 0 2 mono ceramic 0 2 mono ceramic 0 1 mono ceramic 0 1 mono ceramic 0 1 mono ceramic 0 1 mono ceramic 0 2 mono ceramic Electrolytic Electrolytic Electrolytic Electrolytic 0 2 mono ceramic 0 2 mono ceramic or film 0 2 mono ceramic or film 00232 9 PB10 Part Resistors 40105 40105 40105 40420 40420 40417 40718 40406 40719 40719 40719 40405 40720 40721 40722 40723 4011 4011 4071 4071 4071 4070 4072 4041 4041 40427 40724 40725 40420 40701 40409 40701 40406 40415 40701 40409 40409 40726 40412 40427 40111 N DWM 0 O O PB10 Electrical Parts List Cont PB10 POWER AMP section of PCB Version 6 3 7 0 Designator R100 R10A R10B R10C 2 5 x O PO N 2 R21 R22 R23 R24 R25 R26 R27 R28 R29 R2A R2B R2C R3 R30 R31 R32 R33 R34 R4 R40 R41 R42 R43 R44 R45 R46 R47 R48 R49 RS R50 R6 NOT USED 0 1R 0 1R 0 1R 1k 1k 47k 3k3 100k 2k2 2k2 2k2 4K7 42K2 237k NOT USED NOT USED 6k8 2k2 732R 732R 2k2 2k2 2k2 6M8 2k2 47k 47k 23k7 8k87 15k 1k 1000k 10k 1000k 100k 470K 1000k 10k 10k 15k 33k2 2k2 47R SW SW SW 25W 25W 25W 25W 25W 1W
42. s are heard remove driver and test Driver Function 1 2 3 Remove driver from cabinet detach and wire clips Check DC resistance of driver it should be 5 8 ohms Connect a pair of speaker cables to driver terminals Cables should be connected to an integrated amplifier fed by a signal generator and adjust so that speaker level output is 5 0V Sweep generator from 20Hz to 1kHz Listen to driver for any rubbing buzzing or other unusual noises 12 UBL Service Bulletin Service Bulletin JBL2001 03 March 2001 This is considered a Minor repair To All JBL Service Centers Models PB10 PB12 Subject Unit Will Not Switch To Standby Mode When the power cord of the PB series subwoofer is plugged into a wall outlet and for the PB12 only the power switch is on and an audio signal is present the LED s on the cabinet face will turn green indicating the subwoofer is in the ON mode With the audio signal removed it will take 10 15 minutes for the LEDs to turn from green to red indicating the subwoofer is now in the STANDBY mode Power consumption is minimal in this mode In the event you receive a PB10 or PB12 subwoofer with the complaint The unit will not switch to standby mode even when the audio signal is removed indicated by the subwoofer s green LED s remaining on perform the following modification 1 Set the unit on a padded surface and remove all external cables 2 On the amp
43. t then screw the collar back down until the connection is tight The holes in the center of the collars are intended for banana type connectors Dolby Pro Logic Non Digital Speaker Level Use this installation method for Dolby Pro Logic applications not Dolby Digital DTS or other digital processing where the receiver processor does not have a subwoofer output or a volume controlled preamp line level output Connect your receiver or amplifier s front left and right speaker terminals to the left and right terminals on the subwoofer that are marked High Level In Connect the left and right terminals on the subwoofer that are marked High Level Out to the corresponding terminals on the back of your front left and right speakers Connect your receiver or amplifier s center left and right surround speaker terminals to the corresponding terminals on the back of your center left and right surround speakers Left Front Right Front Receiver Center Ri Left Front ight Front GR GA Right Surround dE 8 i Left Surround Right Surround 002 32 3 PB10 Dolby Pro Logic Non Digital Line Level Use this installation method for Dolby Pro Logic applications not Dolby Digital DTS or other digital processing where the receiver processor is equipped with a subwoofer output or a volume controlled preamp line level output
44. w Frequency Effects channel Connect these jacks to the LFE output or subwoofer output on your receiver or amplifier Note If your receiver or amplifier only has one subwoofer output jack then RECEIVER PREAMPLIFIER Subwoofer Output LFE you may connect the subwoofer output on your receiver preamplifier to either the left or right line level input on the subwoofer It makes no difference which jack you choose Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure that you have configured your surround sound processor for Subwoofer On or LFE On LEVEL o Min Max LFE NORMAL PHASE o 180 CROSSOVER FREQUENCY 150Hz LINE LEVEL I The front left front right center and rear speakers should be set to Small or Large depending on their size and frequency response Consult your receiver s or processor s owner s manual 00232 6 PB10 OPERATION Power When the unit is plugged in and the LEDs on the front of the unit will turn red When a signal is present the LEDs will turn green Note It will take several minutes for the LEDs to turn Level Control The subwoofer Level Control adjusts the volume of the subwoofer relative to the rest of the system Proper level adjustments depends on several variables such as Crossover Adjustments The Crossover Frequency Control determines the hi
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