JBL POWERBASS PB1. SERVICE MANUAL Pdf Download. Power. Bass Series PB1. Powered Subwoofer Service Manual JBL Consumer Products 2. Crossways Park Dr. Woodbury, New York 1. Rev. 7 22. 00. 4. Power Amp PCB version 7. Preamp PCB version 7. Power Amp PCB version 7. How To Read Electrical Circuit Diagrams Pdf Download' title='How To Read Electrical Circuit Diagrams Pdf Download' />Schematics Version 2. PB1. 0 DIFFERENCES IN REVISION 1 AND REVISION 2 REVISION 1 REVISION 2 Amplifier has main power switch Amplifier faceplate says Made in Canada. PB1. 0 SAFETY INFORMATION Warning List of Safety Components Requiring Exact Replacements Any person performing service of this unit will be exposed to hazardous voltages and the risk of electric shock. It is Revision 1 Revision 2 Description assumed that any person who removes the amplifier from. Weight 3. 5 lb1. Refinements may be made on occasion to existing products without notice but will always meet or exceed original specifications unless otherwise stated. Power. Bass is a registered trademark of JBL, Incorporated. Electrical design tools. Electrical design without appropriate software and tools is impossible to imagine. On this page you can download professional software for. The Physics Classroom, All rights reserved. KlMjkwR05o/U4HNy6YH9_I/AAAAAAAAKik/inzgNEDuTMI/s1600/split+packaged+wiring-2.jpg' alt='How To Read Electrical Circuit Diagrams Pdf Download' title='How To Read Electrical Circuit Diagrams Pdf Download' />Title Authors Level Type Circuit Construction Kit series of three. A circuit diagram electrical diagram, elementary diagram, electronic schematic is a graphical representation of an electrical circuit. A pictorial circuit diagram. Free online electrical engineering courses, books, software, spreadsheets, design guides, cad details, standards and codes. J9DxSs2W9Q/U32O8GSBCxI/AAAAAAAAKcI/K-zIuNhQzMM/s1600/Installation+diagram.JPG' alt='How To Read Electrical Circuit Diagrams Pdf Download' title='How To Read Electrical Circuit Diagrams Pdf Download' />PB1. DETAILED SPECIFICATIONS PB1. Subwoofer 1. 50. W Powered Sub Amp JBL PB 1. LINE VOLTAGE YesNo HiLo Line Nom. Unit US 1. 20vac6. Hz 1. 08 1. 32 Vrms EU 2. Hz 2. 07 2. 64 Vrms Parameter Specification Unit Conditions QA Test Limits Amp Section Type Class AB, D, otherFront Panel Power These lights will be red when the unit is plugged in and not receiving a signal when the PB1. GREEN. If no signal is received after 1. RED standby until a signal is present again. PB1. 0 Speaker Connection When we designed the PB1. Insert the bare end of the wire was to offer the user the best. PB1. 0 Dolby Pro Logic Non Digital Line Level Use this installation method for Note If your receiver or Note for advanced users If Dolby Pro Logic applications amplifier only has one your receiverprocessor has not Dolby Digital, DTS or other. PB1. 0 Dolby Digital or DTS or Other Digital Surround Mode Connection Use this installation method for Note If your receiver or Make sure that you have Dolby Digital, DTS or other amplifier only has one configured your surround digital surround processors. LEDs to turn subwoofer can be turned off, from green to red after the whenever desired. NOTE Early versions of the PB1. Power switch. Level Control The subwoofer Level Control subwoofer placement, type of. Make sure that you have that the subwoofer is configured your receiver plugged into an active processor so that the electrical outlet and switched subwooferLFE output is on. NOTE Early versions of the PB1. Power switch. 2. Turn on generator, adjust to 1. V, 5. 0Hz. 3. Plug in UUT Turn Main Power switch ON present on later version PB1. LEDs on the front panel may be either Red or Green. Turn VOLUME control full clockwise. Low Pass control should be set fully clockwise 1. Hz. STANDBY mode. Power consumption is minimal in this mode. In the event you receive a PB1. PB1. 2 subwoofer with the complaint The unit will not switch to standby mode, even when the audio signal is removed indicated by the subwoofers green LEDs remaining on, perform the following modification 1 Set the unit on a padded surface and remove all external cables. This may be a mechanical hum caused by the power transformer. 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 PB1. C only Revision 1 of the PB1. Amplifier faceplate says Made in Canada Amplifier serial number starts with AM Black or silver potted, non serviceable S5. AMI output module. PB1. 0 only No Power switch JBL Incorporated 2. Crossways Park Dr. JBL Incorporated 2. Crossways Park Dr. Woodbury, New York 1. Do NOT mix match these components from different manufacturers, or batches. They should be identical. Late version PB1. PB1. 2 subwoofers Revision 2 in the service manual can be identified by Amplifier serial number starts with HA. Foam End Pad Top Bottom 3. Port tube Not For Sale 3. Logo Badge 3. 36. IMAGE REDUCED LED Assy for Logo Badge 3. Identification Of PB1. Revisions 1 and 2 can be found on Page 2. PB1. 0 Amplifier Exploded View Revision 1 Only LEGEND Dual RCA jack 1. Power Transformer 8. Level Pot 4. 04. 02 Low Pass Filter Pot 4. Fuse Clips 2 7. A SLO BLO Fuse 3ag 8. Strain Relief Plug 7. CAUTION 8 Power Cord 8. RISK OF ELECTRIC SHOCK DO NOT OPEN 9 Power Switch 0. RCA Input jacks 1. Identification Of PB1. Revisions 1 and 2 can be found on Page 2. S screws 1. 5V 1. V 0. 02. 28 2 part 6. N nuts NOTE THE PB1. REVISION 1 AMPLIFIER MUST ALWAYS BE TESTED WITH A WOOFER OR 4 OHM RESISTIVE LOAD. MPSA5. 6, Q1. 0, Q1. N Chan JFET Q1 2. N4. 40. 1, Q1. 2 LM3. TLO6. 4, U1, U2. PB1. Integrated Circuit Diagrams Revision 2 Only 2. N5. 40. 1 MOSFET IRF6. OPAMP, QUAD Q1. 8, 2. TL0. 74. CDR U2, 3 3 Collector 1. G Base 2. D 3. S 1 Emitter MPSW0. RLRA, MPSW5. 6RLRAMPQ, MPS2. ARLRA, OPAMP, DUAL 2. N2. 90. 7A, 2. N5. TIP3. 1C TL0. 72. CDR SO 8, Q2, 1. PB1. PB1. 0 Testing Procedure Revision 1 Only A. Power Amp Section Resistance from OP of the module to GND should be 1. M NO LOAD Resistance Check Resistance from V of the module to V of the module should read 4k. PB1. 0 PB1. 0 Testing Procedure Cont. Revision 1 Only Voltage measurements OP AMP SPEAKER U17 U27 U11 U21 U11. U21. 4 U28 PU11. PU18 1. How Do You Cook Crack On A Spoonful Of Style. V 2. V 3. 25m. V 4. V 4. 51m. V 4. 51m. V 1. 3. 3V 6. 3. 7V 5. V 1. 5. 3. V 2. High Level Input Sensitivity Set up Turn level, Lo Pass Pot Fully CW and LFE switch off Set Generator at 1. V5. 0Hz. PB1. 0 PB1. Testing Procedure Cont. Revision 1 Only PB1. 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. PB1. 0 PB1. 0 Testing Procedure Cont. Revision 2 Only A. Power Amp Section Resistance from S SPK OP to GND should be 1. M NO LOAD Resistance Check Resistance from V C6 P to V C8 P gradually Fully CHARGED should read 1. PB1. 0 PB1. 0 Testing Procedure Cont. Revision 2 Only Voltage measurements OP AMP SPEAKER U21 U21. U28 U37 U31 U31. U38 U57 U51 1. V 2. 00. 2m. V 2. V 3. 14. 8m. V 3. V 3. 50m. V 1. 6. V 1. 4. 52. V 2. 0. V 1. 5. 3. V 2. High Level Input Sensitivity Set up Turn level, XOVER FREQ POT Fully CW and LFE switch off. PB1. 0 PB1. 0 Testing Procedure Cont. Revision 2 Only PB1. POWER MODULE TESTING FLOW CHART REVISION 2 ONLY CAUTION SPEAKER OUTPUT IS FLOATING AND IS NOT PROTECTED AGAINST A SHORT TO GROUND. ALL TEST INSTRUMENTS CONNECTED TO THE OUTPUT MUST BE FLOATING. PB1. 0 Block Diagram Revision 2 Only Rev. No Revision note Date Signature Checked PHASE CTRL SPEAKER LEVEL SWITCH INPUT VOLUME CTRL DIF. AMP SUMMI NG AMP Variable Rout 1. BOctave 1. 2d. BOctave 1. BOctave 1. 2d. BOctave Lout Line Level SUMMI NG AMP LIMITER Input. PB1. 0 PB1. 0 Electrical Parts List Revision 1 Only PB1. POWER AMP section of PCB Version 6. Part Ref. Designator Description Semiconductors 6. MODULE S5. 3AMI amp module 6. TLO6. 4 Quad Op. Amp 5. BR RECT RS6. 04 6. AMP 5. 01. 05 1. N4. A 1w Zener. PB1. PB1. Electrical Parts List Cont. Revision 1 Only PB1. POWER AMP section of PCB Version 6. Part Ref. Designator Description Resistors R1. NOT USED 4. 01. 05 R1. A 0. 1 ohms 0. 0. R1. 0B 0. 1 ohms 0. R1. 0C 0. 1 ohms. PB1. 0 PB1. 0 Electrical Parts List Cont. Revision 1 Only PB1.