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   BASS550
   Powered Subwoofer
   120 Volt & 230 Volt Versions


SERVICE MANUAL




                                  JBL Consumer Products Inc.
                                  80 Crossways Park West
                                  Woodbury, N.Y. 11797
                                  1-800-336-4JBL in the USA
                                     A Harman International Company

                                  Part No.: 1112-JBLBASS550
Powered Subwoofer                                                                                                                                                          BASS550


                                                                      TABLE OF CONTENTS
Specifications .................................................................1                 Amplifier Exploded View ................................................6
Features..........................................................................2               Parts Lists.......................................................................7
Powered Sub Test Setup...............................................2                            Revisions ......................................................................10
Test Procedure...............................................................2                    Printed Circuit Boards .................................................11
Block Diagram ................................................................4                   Integrated Circuit Diagrams .........................................15
Cabinet Assembly Exploded View.................................5                                  Schematic Diagrams ...................................................16
Packaging Exploded View .............................................5




                                                                           SPECIFICATIONS

                              Amplifier Power (RMS)* .                 .   .   .      .   .   .    .   250 Watts Total
                                                                                                       35 x 3 @ 0.1% THD
                                                                                                       23 x 1 @ 0.1% THD
                                                                                                       100 x 1 @ 0.1% THD
                              Low Frequency Woofer (2) .                   .   .      .   .   .    .   SE6H 6-1/2" Poly-Cone Woofer
                              Design .      .    .   .   .    .   .    .   .   .      .   .   .    .   Bass Reflex Enclosure
                              Inputs .      .    .   .   .    .   .    .   .   .      .   .   .    .   RCA Phono plugs at "Source";
                                                                                                       13 pin Din plug to Subwoofer
                              Outputs       .    .   .   .    .   .    .   .   .      .   .   .    .   (4) Full range Speaker;
                                                                                                       (1) Subwoofer
                              Crossover Frequency Subwoofer (-6dB) .                          .    .   150Hz
                              Frequency Response (-6dB)
                                System . . . . . . .                       .   .      .   .   .    .   35Hz - 20kHz
                                Subwoofer . . . . . .                      .   .      .   .   .    .   35Hz - 150Hz
                              External Dimensions
                                Height . . . . .                  .    .   .   .      .   .   .    .   15-3/4" (400mm)
                                Width . . . . .                   .    .   .   .      .   .   .    .   8-1/2" (216mm)
                                Depth . . . . .                   .    .   .   .      .   .   .    .   20" (508mm)
                              Weight .      .    .   .   .    .   .    .   .   .      .   .   .    .   40 lbs. (18.2 kg)




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 this reason, the Bass550 Subwoofer may
differ in some respect from its published specifications and descriptions, but will always equal or exceed the original
specifications unless otherwise stated.




                                                                                                                                                                                        1
Powered Subwoofer                                                                                                      BASS550
                                                            FEATURES

n   The Bass550 powered subwoofer is part of the ESC550          n   Line level input exclusively from the "Source".
    System.
                                                                 n   User friendly "auto on" circuit. Signal sensing
n   Amplifiers for five satellite speakers and subwoofer.            automatically turns the subwoofer on so you don't have
                                                                     to; the subwoofer is meant to be left "on" without
n   100 watt output.                                                 continually using the power switch.


n   Variable level control.




                              BASS550 POWERED SUBWOOFER TEST SETUP




                                                   TEST PROCEDURE
Equipment needed:                                                Subwoofer, General Function
n   The "Source" AM/FM turner/CD player w/ remote control.       1) Connect both right and left phono jack (RCA) inputs
n   Function/signal generator/sweep generator.                      to signal generator and the "Source" Tape/Aux. input
                                                                    jacks. Use Y-cable if necessary from mono source.
n   Multimeter.
                                                                 2) Connect Bass550 subwoofer to the "Source" with
n   Cable - Phono plugs (RCA) and speaker cables.
                                                                    supplied 13 pin Din cable.
n   RCA Y-cable



                                                                                                                              2
Powered Subwoofer                                                                                            BASS550


3) Plug in subwoofer, turn power switch on; red LED         System, General Function
   should light.
                                                            1) Connect Bass550 subwoofer to the "Source" with
4) Turn on generator, adjust to 100 mV, 50 Hz.                 supplied 13 pin Din cable.

5) Push "power" button on the "Source", (display should     2) Attach all five satellite speakers to the supplied
   now be active); press "Tape/Aux" button, adjust             speaker cables, terminating in a molex connector
   volume (on Source) so display reads "VOLUME 30".            plugged into the subwoofer.

6) Turn up level control on subwoofer full clockwise.       3) Plug in Bass550 subwoofer, turn power switch on; red
                                                               LED should light.
7) LED on subwoofer should cycle to green; bass
   response should be heard and felt from port tube         4) Push "power" button on the "Source"; (display should
   opening.                                                    now be active).
                                                            5) Toggle "surround mode" button on front panel or with
Subwoofer, Sweep Function                                      remote control until "NORMAL" appears.
1) Follow steps 1-7 above, using a sweep generator as a     6) Toggle "rear speaker"button on front panel until
   signal source.                                              "REAR SPEAKERS" is displayed in upper left corner.
2) Sweep generator from 20Hz to 300Hz. Listen to the        7) Adjust volume (on Source) so display reads
   cabinet and drivers for any rattles, clicks, buzzes or      "VOLUME 30".
   any other noises. If any unusual noises are heard,
   remove driver and test.                                  8) Using remote control, press "TONE" button.
                                                            9) White noise should be heard, cycling from Left,
Subwoofer, Driver Function                                     Center, Right and Rear speakers in succession.
1) Remove one or both drivers from cabinet; remove +        10)Press "TONE" button again to halt test.
   and - wire clips.
2) Check DC resistance of driver; it should be
   approximately 5.8 ohms.
3) Connect a pair of speaker cables to driver terminals.
   Cables should be connected to an integrated amplifier
   fed by a signal generator. Turn on generator and
   adjust so that speaker level output is 4.0V.

4) Sweep generator from 20Hz to 1kHz. Listen to driver
   for any rubbing, buzzing, or other unusual noises.




                                                                                                                      3
Powered Subwoofer                                                      BASS550

            BASS550 (120v US & 230v European Versions) BLOCK DIAGRAM




                                                                            4
Powered Subwoofer                                                BASS550
           BASS550 CABINET ASSEMBLY & PACKAGING EXPLODED VIEWS




                                                                      5
                                                                                                                                                                                                                                                  Powered Subwoofer
              A            B                 C                                                    D               E                     F                 G                 H                 I


                                                                                                                                                                                      31 2x
    1                                                                                                                                                                                                      1
          Bass550 Amplifier                                                                           20 5x                Power Supply PCB
          Exploded View
                                                                                                                      Power Amp Subwoofer                                                          26 8x
                                                                                                              22 5x
                                                                                                                           PCB 1166
    2                                                                                                                                                                                                      2




                                                                         11
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                                                                                                                                                                                                  21 10x




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                                                                                                                                                                                          1 4x
    4                                                                                                                                                                             2 2x                     4


                                                 11

    5                                                                                                                                                                                                      5



                   32                                                                                                                                                     Power Amp PCB 1165




                                                                                                                                                                                                                Bass550 Amplifier Exploded View
    6                                                                                                                                                                                                      6


                  Preamp & Crossover PCB

    7                                                                                                                      18 2x                                                                           7

                                                                                                                                                          4

                          16                     19 2x
    8                                                                                                                                                                                                      8

                                                 5

         17                          25 6x
    9                                                                                                                                                                                                      9
                                                                                                                                                 Ref # Part No. Description                        Qty.
                                                                                                                                    6
                                                                                                                                                  9    FH1002 Fuse Holder 1/4x1-1/4                 1
                                                                                                                                                 10    XX1174 AG AC Cord 6ft. UL/CSA aprov. 120v    1
                                                                                                                                    13 6x              WI1597 AG AC Cord 6ft. UL/CSA aprov. 230v    1
    10                                                                                                                                           11    HS1142 Heatsink Internal                      1     10
                                                                                                                                                 12    MI1151 AG Power Transformer 120v              1
                                                                                                                                                       M1159     AG Power Transformer 230v           1
          10                   23                                                                                                                13    ST1025 Round Spacer 1/2x3/8 length            6
                                                           9                                                                                     14    SW1075 JR Switch Rocker 2P2T Snap-I           1
    11                                                            24 2x                                                             26 6x        15    XX1259 Knob Black (not shown)                 1
                                                                                                                                                                                                           11
                                                                                                                                                 16    XX1269 Gasket                                 1
                                                                   14                                                                            17    XX1276 Plastic Cover                          1
                                    8                                                                                                            18    NU1059 Nut 4-40 Keps-Thr. Hexag. Zinc         2
                                                                                                                                                 19    NU1057 Nut 6-32 Keps Zinc Hexag.              2
                                                                                                                                                 20    NU1049 Nut 8-32x1/4 Keps Hexag.               5
    12                                                                                                                         28 6x                                                                       12
                                                                                                                                                 21    WA1049 Washer Ext. Tooth #6 Zinc             10
                                                                                                                                                 22    WA1080 Washer Flat #8 Steel Zinc              5
                                                                                                                                                 23    XX1250 Strain Relief SPT-1 Black              1
                                                      Ref #                   Part No.                 Description                      Qty.     24    SC1253 Screw 4-40x3/8 Pan Phillips            2
                                                       1                      BR1187                   Alum. Bar 4.8x12.7x40mm           4       25    SC1274 Screw 5-20x1/4 Thread Form. Z.         6
    13                                                 2                      BR1386                   Transistor Bar TO-218             2       26    SC1192 Screw 6-32x3/4 Cutt-Thr. Hex.          8     13
                                                       3                      BR1395                   Bracket Power Support             6       27    SC1194 Screw 6-32x3/8 Tapt-Thr Hex.          17
                                                       4                      BR1411                   Bracket Support 60 Deg            1       28    SC1282 Screw 10-32x7/8 Pan-Torx Hd.           6
                                                       5                      BR1421                   Bracket "L" 0.9"x0.9"             1       29    SP1073 Sil Pad TO-3P 1/0"x0.75"              12
                                                       6                      BR1423                   Front Plate                       1       30    SP1072 Sil Pad TO-220 0.750"                  3
    14                                                 7                      BR1495                   Alum. Bar                         1       31    ST1024 1/4 Hex Fem. Standoff 1-1              2     14
                                                                                                                                                                                                                                                  Bass550




                                                       8                      FS1078                   Fuse 6A 250V 3AG Slow Blow        1       32    332630-001 13 Pin Interconnect Cable          1
              A            B                 C                                                    D               E                     F                 G                 H                 I
6
                                                                                                                                                                                                                        Powered Subwoofer
         A            B               C                                                      D               E                F          G            H              I


                                                                                                                                                             31 2x
1                                                                                                                                                                                 1
     Bass550 Amplifier                                                                           20 5x                Power Supply PCB
     Exploded View
                                                                                                                 Power Amp Subwoofer                                     26 8x
                                                                                                         22 5x
                                                                                                                      PCB 1166
2                                                                                                                                                                                 2




                                                                 11
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                                                                                                                                                                         21 10x




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                                                                                                             27 17x               3 6x       30 3x                         7

3                            12                                                                                        29 12x                                                     3




                                                                                                                                                                 1 4x
4                                                                                                                                                         2 2x                    4


                                          11

5                                                                                                                                                                                 5



              32                                                                                                                                     Power Amp PCB 1165




                                                                                                                                                                                      Bass550 Amplifier Exploded View
6                                                                                                                                                                                 6


             Preamp & Crossover PCB

7                                                                                                                     18 2x                                                       7

                                                                                                                                         4

                     16                   19 2x
8                                                                                                                                                                                 8

                                          5

    17                        25 6x
9                                                                                                                                                                                 9
                                                                                                                                                                              Bass550 Amplifier Exploded View
    6                                                                                                                                                                    6


                  Preamp & Crossover PCB

    7                                                                                       18 2x                                                                        7

                                                                                                                         4

                          16                    19 2x
    8                                                                                                                                                                    8

                                                5

         17                         25 6x
    9                                                                                                                                                                    9
                                                                                                                Ref # Part No. Description                        Qty.
                                                                                                     6
                                                                                                                 9    FH1002 Fuse Holder 1/4x1-1/4                 1
                                                                                                                10    XX1174 AG AC Cord 6ft. UL/CSA aprov. 120v    1
                                                                                                     13 6x            WI1597 AG AC Cord 6ft. UL/CSA aprov. 230v    1
    10                                                                                                          11    HS1142 Heatsink Internal                     1     10
                                                                                                                12    MI1151 AG Power Transformer 120v             1
                                                                                                                      M1159     AG Power Transformer 230v          1
          10                   23                                                                               13    ST1025 Round Spacer 1/2x3/8 length           6
                                                       9                                                        14    SW1075 JR Switch Rocker 2P2T Snap-I          1
    11                                                      24 2x                                    26 6x      15    XX1259 Knob Black (not shown)                1
                                                                                                                                                                         11
                                                                                                                16    XX1269 Gasket                                1
                                                            14                                                  17    XX1276 Plastic Cover                         1
                                    8                                                                           18    NU1059 Nut 4-40 Keps-Thr. Hexag. Zinc        2
                                                                                                                19    NU1057 Nut 6-32 Keps Zinc Hexag.             2
                                                                                                                20    NU1049 Nut 8-32x1/4 Keps Hexag.              5
    12                                                                                          28 6x                                                                    12
                                                                                                                21    WA1049 Washer Ext. Tooth #6 Zinc            10
                                                                                                                22    WA1080 Washer Flat #8 Steel Zinc             5
                                                                                                                23    XX1250 Strain Relief SPT-1 Black             1
                                                    Ref #    Part No.   Description                      Qty.   24    SC1253 Screw 4-40x3/8 Pan Phillips           2
                                                     1       BR1187     Alum. Bar 4.8x12.7x40mm           4     25    SC1274 Screw 5-20x1/4 Thread Form. Z.        6
    13                                               2       BR1386     Transistor Bar TO-218             2     26    SC1192 Screw 6-32x3/4 Cutt-Thr. Hex.         8     13
                                                     3       BR1395     Bracket Power Support             6     27    SC1194 Screw 6-32x3/8 Tapt-Thr Hex.         17
                                                     4       BR1411     Bracket Support 60 Deg            1     28    SC1282 Screw 10-32x7/8 Pan-Torx Hd.          6
                                                     5       BR1421     Bracket "L" 0.9"x0.9"             1     29    SP1073 Sil Pad TO-3P 1/0"x0.75"             12
                                                     6       BR1423     Front Plate                       1     30    SP1072 Sil Pad TO-220 0.750"                 3
    14                                               7       BR1495     Alum. Bar                         1     31    ST1024 1/4 Hex Fem. Standoff 1-1             2     14




                                                                                                                                                                                                                Bass550
                                                     8       FS1078     Fuse 6A 250V 3AG Slow Blow        1     32    332630-001 13 Pin Interconnect Cable         1
              A            B                C                    D                 E                     F               G                 H                 I
6
Powered Subwoofer                                                                                                                    BASS550
                                             BASS550 ELECTRICAL PARTS LIST
REF. NO.            PART NO.    DESCRIPTION                     QTY       REF. NO.           PART NO.    DESCRIPTION                   QTY
                                                                          CONN6              CO1339     STR. SQ. 0.156" CENTER HE       1
Power Supply PCB 1163                                                     DIN                CO1337     CONNECTOR MULTI-POLE NON        1

Connectors                                                                Capacitors
CONN1               CO1335     CONNECTOR 6410 SERIES 6 T        1         C1, 1A, 1B,        CP1415     ALUM EL. 2.2uF 20%              4
-V, +V              CO1347     CONNECTOR 41791 SERIES 3         2           1C
GND                 CO1348     CONNECTOR 41791 SERIES 4         1         C2, 2A, 2B, 2C     CP1473     SMD 220pF 10% 50V NPO           4
+, 1, CT(5), GND    TE1175     TERMINAL MALE TAB. 0.032"x0.25   4         C3, 3A, 3B,        CP1352     ALUM EL. 22uF 20% 25V           6
                                                                            3C, 16, 17
AC(7), AC(9),       TE1185     TERMINAL MALE TYPE QUICK-FIT     3
   CT(8)                                                                  C4, 4A, 4B,        CP1344     POLY FIL 0.33uF 10%             4
                                                                            4C
Capacitors                                                                C5, 5A, 5B, 5C     CP1632     POLY FILM 0.033uF 5%            4
C1-4                CP1545     ALUM EL. 4700uF 20% 50V          4         C8                 CP1412     ALUM EL. 47uF 20% 16V           1
C5, 6, 11, 12,      CP1426     SMD 0.1uF 20% 50V Z5U            12        C9, 11, 12         CP1495     POLY FILM 0.1uF 5% 63           3
  15, 16, 19,                                                             C10                CP1534     POLY FILM 15nF 5% 63V           1
  20, 21, 22,
  23, 24                                                                  C14, 14A, 14B,     CP1426     SMD 0.1uF 20% 50V Z5U           12
                                                                            14C, 15, C15A,
C7                  CP1552     SMD 0.1uF 20% 100V Z5U           1           15B, 15C, 18,
C8                  CP1520     SMD 0.01uF 10% 50V T/R           1           19, C20, 21
C9, 10              CP1624     ALUM EL. 2200uF 20% 35V          2         C22-25             CP1442     SMD 4.7nF 10% 100V              4
C13, 14, 25         CP1417     ALUM EL. 22uF 20% 16V T/R        3
                                                                          Diode
C17, 18             CP1424     ALUM EL. 10uF 20% 16V T/R        2
                                                                          D1, 2, 3           DI1132     SMD DIODE 1N4148 LL-34 PKG      3
C26, 27             CP1690     0.01uF 100V                      2
                                                                          Intergrated Circuits
Diodes              DI1185       Main Diode Bridge                    1
                                                                          IC1, 2, 3, 4       IC1041     NJM072 DUAL J-FET OP-AMP        4
D1-5                DI1010     1N4002 1A/100V AXIAL             5
                                                                          IC5                IC1162     NMJ074 QUAD J-FET OP-AMP        1
D6-10               DI1132     SMD 1N4148 LL-34 PKG T/R         5
ZD1                 DI1129     MBZ5240B 10V ZENER               1         Resistors
                                                                          J1-10, 12-15,      RS1779     SMD ZERO  JUMPER                19
Fuses                                                                       18, 23, 26,
F1 (120V Version)   FS1078     FUSE 6A 250V 3AG SLOW BLOW       1           27, 32
F1 (230V Version)   FS1078     FUSE 3.15A 250V 3AG SLOW BLOW    1         P1                 RS1794     POT 50K 20% LOG TAPER           1
F3, 4, 5            FS1055     FUSE FAST 3A/125V PICO T/R       3         R1, 1A-1C, 22,     RS1700     SMD 1K 5% 1/8W                  8
F6, 7(230V Version) FS1055     FUSE FAST 3A/125V PICO           2           24, 29, 32
                                                                          R2, 2A, 2B, 2C     RS1706     SMD 47K 5% 1/8W                 4
Integrated Circuits                                                       R3, 3A-3C,         RS1705     SMD 4.7K 5% 1/8W                6
IC1                 IC1048     VOLTAGE REG. +12V TO-220         1           9, 26
IC2                 IC1110     VOLTAGE REG. -12V TO-220         1         R4, 4A-4C, 7,      RS1701     SMD 10K 5% 1/8W                 13
                                                                            10, 15-17,
IC3                 IC1258     VOLTAGE REG. +9V TO-220          1           R21, 23, 25,
                                                                            28
Resistors                                                                 R5, 5A, 5C         RS2282     SMD 4.32K 1% 1/8W               3
R1, 5               RS1725     SMD 15K 5% 1/8W                  2
                                                                          R5B                RS1876     SMD 7.5K 1% 1/8W                1
R3                  RS1701     SMD 10K 5% 1/8W                  1
                                                                          R6, 6A, 6C         RS2281     SMD 24.3K 1% 1/8W               3
R4                  RS1702     SMD 100K 5% 1/8W                 1
                                                                          R6B                RS1934     SMD 15K 1% 1/8W                 1
R6                  RS1703     SMD 2.2K 5% 1/8W                 1
                                                                          R8, 19             RS1767     SMD 1M 5% 1/8W                  2
R7                  RS1700     SMD 1K 5% 1/8W                   2
                                                                          R11                RS2165     SMD 28K 1% 1/8W                 1
R8                  RS1706     SMD 47K 5% 1/8W                  1
                                                                          R12                RS2162     F/CHIP 60.40K 1% 1/8W           1
Transistors                                                               R13                RS1863     SMD 9.09K 1% 1/8W               1
Q1                  TR1108     SMD NPN 2SC2412J                 1         R14                RS2163     SMD 143 K 1% 1/8W               1
Q2                  TR1125     SMD PNP 2SA1037K                 1         R18                RS1702     SMD 100K 5% 1/8W                1
                                                                          R20                RS1883     SMD 1.5K 5% 1/8W                1
Wire                                                                      R30                RS1703     SMD 2.2K 5% 1/8W                1
JW1, 2, 4,          WI1553     WIRE #22 BARE SOLID TINNED       6         R31                RS1711     SMD 220 5% 1/8W                 1
  8, 12, 13                    1 FOOT
                                                                          R33, 35, 36        RS1872     SMD 51K 5% 1/8W                 3

Crossover & Preamp PCB 1164                                               Transistor
                                                                          Q3, 9, 11          TR1063     NPN MPS2222A TO-92              3
Connectors
CONN1               CO1335     CONNECTOR 6410 SERIES 6 T        1         Q4, 5              TR1183     NPN POWER TIP31C                2
CONN2, 3, 4         CO1336     CONNECTOR 6410 SERIES 5          3         Q6, 10             TR1010     PNP MPS2907A TO-92              2
CONN5               CO1341     RIGHT ANGLE WITH PEGS 5569       1




                                                                                                                                             7
Powered Subwoofer                                                                                                                 BASS550
REF. NO.            PART NO.    DESCRIPTION                    QTY   REF. NO.           PART NO.    DESCRIPTION                     QTY
                                                                     R28                RS1878     SMD 10 5% 1/8W                    1
Jumper Wires
                                                                     R31, 32            RS1715     SMD 5.6K 5% 1/8W                  2
JW1-16              WI1553     WIRE #22 BARE SOLID TINNED      16
                               2.66 FEET TOTAL                       R33, 34, 35        RS1898     SMD 10K 1% 1/8W                   3
                                                                     R36                RS2285     SMD 11.3K 1% 1/8W                 1
LED                                                                  R37, 39, 40        RS1767     SMD 1M 5% 1/8W                    3
LED1                LE1032     LED BICOLOR RED/GREEN 5mm       1     R42, 49, 50        RS1702     SMD 100K 5% 1/8W                  3
                                                                     R46, 47            RS2180     M/O 470 5% 1W                     2
Sub Amp PCB 1166                                                     R51                RS1903     SMD 47 5% 1/8W                    1
Connectors                                                           Thermistor
CONN                CO1336     CONNECTOR 6410 SERIES 5 TERM.   1
                                                                     TH1                TH1006     NTC THERM. 10K @ 25DegC           1
+V, -V, SPKGND,     TE1194     MALE FASTON TAB 0.250x0.0       5
  SPK(2)                                                             Transistors
                                                                     Q1, 1A             TR1057     NPN POWER TIP35C TO-218           2
Capacitors
C1                  CP1473     SMD 220pF 10% 50V NPO           1     Q2, 2A             TR1061     PNP POWER TIP36C TO-218           2
C2                  CP1412     ALUM EL. 47uF 20% 16V RAD.      1     Q3                 TR1183     NPN POWER TIP31C TO220            1
C3, 5, 6            CP1475     SMD 33pF 5% 50V NPO             3     Q4                 TR1184     PNO POWER TIP32C TO220            1
C4, 100, 200        CP1496     SMD 100pF 10% 50V X7R           3     Q5, 8, 13, 15      TR1166     PNP 2N5401 TO-92 T/R              4
C7, 8, 13, 14,      CP1426     SMD 0.1uF 20% 50V Z5U           7     Q6, 7, 14          TR1167     NPN 2N5551 TO-92 T/R              3
  15, 16, 17                                                         Q9                 TR1043     NPN MPS2222A TO-92                1
C9-C12              CP1645     ALUM EL. 22uF 20% 63V 85 Deg    4     Q10, 11            TR1108     SMD NPN 2SC2412K CP PKG           2
C18                 CP1126     POLY FILM 1uF 10% 50V T/R       1     Q12                TR1131     SMD NPN DTC1124TK 10K CP          1
C19                 CP1552     SMD 0.1uF 20% 100V Z5U          1
C20, 21, 23         CP1579     ALUM EL. 33uF 20% 16V NPE T/R   3
                                                                     Miscellaneous
                                                                     TRIAC              TY1001     TRIAC 200V 25V TO-220 MAC224-4    1
Diode                                                                JW1, 4, 5          WI1553     WIRE #22 BARE SOLID TINNED        3
D1-6                DI1132     SMD 1N4148 LL-34 PKG            6                                   0.5 FOOT
ZD1, 2              DI1150     SMD ZENER 15V 5% CP PKG         2     JW2, 3             WI1623     WIRE #16 SOLID UL 1569 GREEN      2
                                                                                                   0.166 FOOT
Fuse                                                                 F1                 XX1297     FUSE CLIP 5x20 PC MOUNT           2
F1                  FS1073     FUSE SLOW BLOW 8A 250V 5x20     1
                                                                     Surround & Center Power Amp 1165
Integrated Circuits
IC1                 IC1175     NE5532 DUAL LOW-N OP-AMP        1     Connectors
                                                                     CONN               CO1336     CONNECTOR 6410 SERIES 5 TERM.     1
Inductor                                                             +V, -V, SPK(R-L)   TE1194     MALE FASTON TAB. 0.250x0.032      4
L1 (120v Version)   MI1100     INDUCTOR AIR CORE 0.38uH        1
L1 (230v Version)   MI11000    INDUCTOR AIR CORE 0.40uH        1     Capacitor
                                                                     C1, 1A             CP1473     SMD 220pF 10% 50V NPO             2
Resistors                                                            C2, 2A             CP1412     ALUM EL. 47uF 20% 16V RAD.        2
J1, 2, 3, 4,        RS1779     SMD ZERO  JUMPER                11    C3, 3A, 5, 5A
  5, 7, 8, 9.                                                          6, 6A            CP1475     SMD 33pF 5% 50V NPO               6
  10, 11, 15
                                                                     C4, 4A, 100,       CP1496     SMD 100pF 10% 50V X7T             6
P1                  RS1794     50K POTENTIOMETER               1       100A, 200,
R1, 2, 4, 19,       RS1701     SMD 10K 5% 1/8W                 10      C200A
  20, 29, 30,                                                        C7, 7A, 8, 8A,     CP1426     SMD 0.1uF 20% 50V Z5U             10
  41, 43, 45                                                           13, 14, 14A,
R3                  RS1700     SMD 1K 5% 1/8W 120              1       C15-17
R5, 8               RS1725     SMD 15K 5% 1/8W                 2     C9-12              CP1645     ALUM EL. 22uF 20% 63V 85Deg       4
R6, 7, 16, 38       RS1831     SMD 7.5K 5% 1/8W T/R            4     C18                CP1126     POLY FILM 1uF 10% 50V T/R         1
R9, 13              RS1722     SMD 470 5% 1/8W                 2     C19                CP1552     SMD 0.1uF 20% 100V Z5U            1
R10, 12, 15,        RS1717     SMD 100 5% 1/8W                 5
  18, 48                                                             Diodes
                                                                     D1, 1A, 2, 2A,     DI1132     SMD 1N4148 LL-34 PKG T/R          10
R11                 RS1703     SMD 2.2K 5% 1/8W                1
                                                                       3, 3A, 4, 4A,
R14                 RS1704     SMD 22K 5% 1/8W                 1       5, 6
R17                 RS1871     SMD 5.1K 5% 1/8W                1     Z1, 2              DI1150     SMD ZENER 15V 5% CP PKG. T/R      2
R21                 RS1994     100 5% 1/4W C/F T/R             1
                                                                     Integrated Circuits
R22, 22A, 23,       RS1916     C/F 5.1 5% 1/4W T/R             4
  23A                                                                IC1                IC1175     NE5532 LOW-N OP-AMP               1
R24, 24A, 25,       RS1868     W/W 0.1 5% 5W RADIAL            4     IC2                IC1041     NJM072 DUAL J-FET OP-AMP          1
  25A
R26, 44             RS1877     SMD 4.3K 5% 1/8W                2     Inductor
R27                 RS1724     SMD 6.8K 5% 1/8W                1     L1, 1A (120v)      MI1100     AIR CORE 0.38uH                   2




                                                                                                                                          8
Powered Subwoofer                                                                                                              BASS550


REF. NO.          PART NO.     DESCRIPTION                  QTY   REF. NO.            PART NO.    DESCRIPTION                     QTY
L1, 1A (230v)     MI11000     INDUCTOR AIR CORE 0.40uH      2
                                                                  Left & Right Power Amp 1165
Resistors
J1-6, 8-15, 17    RS1779      SMD ZERO  JUMPER              15    Connectors
R1, 1A, 2, 2A,    RS1701      SMD 10K 5% 1/8W               18    CONN                CO1336     CONNECTOR 6410 SERIES 5 TERM.    1
  4, 4A, 19, 19A,                                                 +V, -V, SPK(R-L)    TE1194     MALE FASTON TAB 0.250x0.032      4
  20, 20A, 29,
  29A, 30, 30A,
  41, 43, 45, 45A
                                                                  Capacitors
                                                                  C1, 1A              CP1473     SMD 220pF 10% 50V NPO            2
R3, 3A            RS1700      SMD 1K 5% 1/8W                2
                                                                  C2, 2A              CP1412     ALUM EL. 47uF 20% 16V RADIAL     2
R5, 5A, 8, 8A     RS1725      SMD 15 5% 1/8W                4
                                                                  C3, 3A, 5, 5A,      CP1475     SMD 33pF 5% 50V NPO              6
R6, 6A, 7, 7A,    RS1831      SMD 7.5K 5% 1/8W T/R          8       6, 6A
  16, 16A, 38,
  38A                                                             C4, 4A, 100,        CP1496     SMD 100pF 10% 50v X7R            6
                                                                    100A, 200,
R9, 9A, 13, 13A   RS1722      SMD 470 5% 1/8W               4       200A
R10, 10A, 12,     RS1717      SMD 100 5% 1/8W               8     C7, 7A, 8, 8A,      CP1426     SMD 0.1uF 20% 50V Z5U            10
  12A, 15, 15A,                                                     13, 14, 14A,
  18, 18A                                                           15, 16, 17
R11, 11A          RS1703      SMD 2.2K 5% 1/8W              2     C9-12               CP1645     ALUM EL. 22uF 20% 63V 85Deg      4
R14, 14A          RS1702      SMD 22K 5% 1/8W               2     C18                 CP1126     POLY FILM 1uF 10% 50V T/R        1
R17, 17A          RS1871      SMD 5.1K 5% 1/8W              2     C19                 CP1552     SMD 0.1uF 20% 100V Z5U           1
R21, 21A          RS1994      100 5% 1/4W C/F T/R           2
R22, 22A, 23,     RS1916      C/F 5.1 5% 1/4W T/R           4     Diode
  23A                                                             D1, 1A, 2, 2A,      DI1132     SMD 1N4148 LL-34 PKG T/R         10
R24, 24A, 25,     RS1868      W/W 0.1 5% 5W RADIAL          4       3, 3A, 4, 4A,
  25A                                                               5, 6
R26, 26A, 44,     RS1877      SMD 4.3K 5% 1/8W              4     Z1, 2               DI1150     SMD ZENER 15V 5% CP PKG T/R      2
  44A
R27, 27A          RS1724      SMD 6.8K 5% 1/8W              2
                                                                  Integrated Circuits
                                                                  IC1                 IC1175     NE5532 DUAL LOW-N OP-AMP         1
R28, 28A          RS1878      SMD 10 5% 1/8W                2
                                                                  IC2                 IC1041     NJM072 DUAL J-FET OP-AMP         1
R31, 32           RS1715      SMD 5.6K 5% 1/8W              2
R33-35            RS1898      SMD 10K 1% 1/8W               3     Inductor
R36               RS2285      SMD 11K 1% 1/8W               1     L1, 1A (120v)       MI1100     AIR CORE 0.38uH                  2
R37, 39, 40       RS1767      SMD 1M 5% 1/8W                3     L1, 1A (230v)       MI11000    INDUCTOR AIR CORE 0.40uH
R42               RS1702      SMD 100K 5% 1/8W              1
R46, 47           RS2180      M/O 470 5% 1W                 2     Resistors
                                                                  J1-6, 8-15, 17      RS1779     SMD ZERO  JUMPER                 15
Thermistor                                                        R1, 1A, 2, 2A,      RS1701     SMD 10K 5% 1/8W                  21
TH1               NTC 10KW @ 2 5DegC                        1       4, 4A, 19, 19A,
                                                                    20, 20A, 29,
                                                                    29A, 30, 30A,
Transistors                                                         33-35, 41, 43,
Q1, 1A            TR1057      NPN POWER TIP35C TO-218       2       45, 45A
Q2, 2A            TR1061      PNP POWER TIP36C TO-218       2     R3, 3A              RS1700     SMD 1K 5% 1/8W                   2
Q3, 3A            TR1183      NPN POWER TIP31C TO220        2     R5, 5A, 8, 8A       RS1725     SMD 15K 5% 1/8W                  4
Q4, 4A            TR1184      PNP POWER TIP32C TO220        2     R6, 6A, 7, 7A,      RS1831     SMD 7.5K 5% 1/8 T/R              8
Q5, 5A, 8, 8A,    TR1166      PNP 2N5401 TO-92 T/R          7       16, 16A, 38,
  13, 13A, 15                                                       38A
Q6, 6A, 7, 7A,    TR1167      NPN 2N5551 TO-92 T/R          5     R9, 9A, 13, 13A     RS1722     SMD 470 5% 1/8W                  4
  14                                                              R10, 10A, 12,       RS1717     SMD 100 5% 1/8W                  8
Q9, 9A            TR1043      NPN MPS2222A TO-92            2       12A, 15, 15A,
                                                                    18, 18A
Q10, 10A, 11,     TR1108      SMD NPN 2SC2412K CP PKG.      4
  11A                                                             R11, 11A            RS1703     SMD 2.2K 5% 1/8W                 2
Q12, 12A          TR1131      SMD NPN DTC1124TK 10K CP      2     R14, 14A            RS1704     SMD 22K 5% 1/8W                  2
                                                                  R17, 17A            RS1871     SMD 5.1K 5% 1/8W                 2
Wires                                                             R21, 21A            RS1994     100 5% 1/4W C/F T/R              2
JW1-5             WI1623      WIRE #16 SOLID UL1569 GREEN   5     R22, 22A, 23,       RS1916     C/F 5.1 5% 1/4W T/R              4
                              0.8 FOOT                              23A
JW6, 9, 10, 11    WI1553      WIRE #22 BARE SOLID TINNED    4     R24, 24A, 25,       RS1868     W/W 0.1 5% 5WC RADIAL            4
                              0.66 FOOT                             25A
                                                                  R26, 26A, 44,       RS1877     SMD 4.3K 5% 1/8W                 4
                                                                    44A
                                                                  R27, 27A            RS1724     SMD 6.8K 5% 1/8W                 2
                                                                  R28, 28A            RS1878     SMD 10 5% 1/8W                   2




                                                                                                                                       9
Powered Subwoofer                                                                                                                      BASS550


REF. NO.         PART NO.        DESCRIPTION                QTY          REF. NO.       PART NO.        DESCRIPTION                        QTY
R31, 32          RS1715     SMD 5.6K 5% 1/8W                 2            4             BR1411        Bracket Support 60 Deg               1
R36              RS1912     SMD 11.3K 5% 1/8W                1            5             BR1421        Bracket "L" 0.9"x0.9"                1
R37, 39, 40      RS1767     SMD 1M 5% 1/8W                   3            6             BR1423        Front Plate                          1
R42              RS1702     SMD 100K 1% 1/8W                 1            7             BR1495        Alum. Bar                            1
R46, 47          RS2180     M/O 470 5% 1W                    2            8             SEE FUSES
                                                                          9             FH1002        Fuse Holder 1/4x1-1/4                1
Thermistor                                                                10            XX1174        AG AC Cord 6ft. UL/CSA aprov. 120V   1
TH1              TH1006     NTC 10KW @ 2 5DegC               1                          WI1597        AG AC Cord 6ft. UL/CSA aprov. 230V
                                                                          11            HS1142        Heatsink Internal                    1
Transistors                                                               12            MI1151        AG Power Transformer 120V            1
Q1, 1A           TR1057     NPN POWER TIP35CTO-218           2                          m1159         AG Power Transformer 230V            1
Q2, 2A           TR1061     PNP POWER TIP36 TO-218           2            13            ST1025        Round Spacer 1/2x3/8 length          6
Q3, 3A           TR1183     NPN POWER TIP31 TO220            2            14            SW1075        JR Switch Rocker 2P2T Snap-I         1
Q4, 4A           TR1184     PNP POWER TIP32 TO220            2            15            XX1259        Knob Black (not shown)               1
Q5, 5A, 8, 8A,   TR1166     PNP 2N5401 TO-92 T/R             7            16            XX1269        Gasket                               1
  13, 13A, 15
                                                                          17            XX1276        Plastic Cover                        1
Q6, 6A, 7, 7A,   TR1167     NPN 2N5551 TO-92 T/R             5
  14                                                                      18            NU1059        Nut 4-40 Keps-Thr. Hexag. Zinc       2
Q9, 95           TR1063     NPN MPS2222A TO-92               2            19            NU1057        Nut 6-32 Keps Zinc Hexag.            2
Q10, 10A, 11,    TR1108     SMD NPN 2SC2412K CP PKG          4            20            NU1049        Nut 8-32x1/4 Keps Hexag.             5
  11A                                                                     21            WA1049        Washer Ext. Tooth #6 Zinc            10
Q12, 12A         TR1131     SMD NPN DTC1124TK 10K CP         2            22            WA1080        Washer Flat #8 Steel Zinc            5
                                                                          23            XX1250        Strain Relief SPT-1 Black            1
Wires                                                                     24            SC1253        Screw 4-40x3/8 Pan Phillips          2
JW1-5            WI1623     #16 SOLID UL1569 GREEN           8
                                                                          25            SC1274        Screw 5-20x1/4 Thread Form. Z.       6
JW6, 9, 10, 11   WI1553     #22 BARE SOLID TINNED            4
                            0.66 FOOT                                     26            SC1192        Screw 6-32x3/4 Cutt-Thr. Hex.        8
                                                                          27            SC1194        Screw 6-32x3/8 Tapt-Thr Hex.         17
Miscellaneous (See Exploded View)                                         28            SC1282        Screw 10-32x7/8 Pan-Torx Hd.         6
                                                                          29            SP1073        Sil Pad TO-3P 1/0"x0.75"             12
  1              BR1187     Alum. Bar 4.8x12.7x40mm          4
                                                                          30            SP1072        Sil Pad TO-220 0.750"                3
  2              BR1386     Transistor Bar TO-218            2
                                                                          31            ST1024        1/4 Hex Fem. Standoff 1-1            2
  3              BR1395     Bracket Power Support            6
                                                                          32            332630-001    13 Pin Interconnect Cable            1




                                                             Revisions
      Date       Revision                           Change Description                                     Reason of Change
  1/29/97        01         A)   Changed   R6, A, C from 27K to 24.3K 1% on PCB1164.             Changes required by Engineering
              



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