JBL STUDIO L8400P Service Manual - L8400P

Other manuals for STUDIO L8400P: Owner's Manual, Owner's Manual
Manual is about: Studio L Series Amplifier/Subwoofer

Summary of STUDIO L8400P

  • Page 1

    Studio l series l8400p amplifier/subwoofer service manual jbl consumer products 250 crossways park dr. Woodbury, new york 11797 rev 1 3/2006.

  • Page 2

    - contents - basic specifications…………………………………………..1 packaging…………………………….……………….………….2 detailed specifications…………………………………….3 connections..………………………………………………….. 5 operation ………….…………………………..….….………….7 basic troubleshooting…………………………………….8 exploded view……………………………………………….…9 120v block diagram..…………...

  • Page 3: L8400P

    Item no. Description qty. Part no. 1. Owner’s manual 1 354038-001 2. Front grille 1 353234-001 3. Warranty card, jbl 5yr/1yr 1 338381-001 4. Kit, spike foot 4 354432-001 5. L8400p outer carton, black 1 353588-001 l8400p outer carton, beech 1 353588-002 l8400p outer carton, cherry 1 353588-003 item n...

  • Page 4

    L8400p powered sub/ plate amp line voltage yes/no hi/lo line nom. Unit notes us 120vac/60hz yes 108-132 120 vrms normal operation eu 230vac/50-60hz yes 207-264 230 vrms normal operation, moms required parameter spec. Unit qa test limits conditions notes amp section type (class ab, d, other) d n/a n/...

  • Page 5

    Parameter spec. Unit qa test limits conditions notes amp section phase switch 0-180 deg functional volume pot taper (lin/log) log -- functional 5k a taper variable crossover 50-150 hz yes functional 4th order lp filter, 2nd order fix and 2nd order variable. Hp speaker out yes functional pass through...

  • Page 6

    4 dolby pro logic* (non-digital) – line level use this installation method for dolby pro logic applica- tions (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: use rca-type inter...

  • Page 7

    5 dolby pro logic (non-digital) – speaker level use this installation method for dolby pro logic applica- tions (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 receiv...

  • Page 8: Operation

    Operation move the master power switch ¢ to the “on” position to use the l8400p subwoofer. If you will be away from home for an extended period of time, or if the subwoofer will not be used, switch the master power switch ¢ to the “off” position. The subwoofer level control • adjusts the volume of t...

  • Page 9: Troubleshooting

    Troubleshooting if you used the high-level (speaker) inputs and there is no sound from any of the speakers: • check that the receiver/ amplifier is on and a source is playing. • check that the powered subwoofer is plugged into an active electrical outlet and is switched on. • check all wires and con...

  • Page 10: L8400P

    Item no. Description qty. Part no. 1. Woofer assembly 12" dcr=3.7 Ω ±10% 1 353112-001 2. Front grille 1 353234-001 3. Grille cup, blk 4 333249-001 grille cup, be & ch 4 333249-003 4. Led wire assembly 1 354288-001 5. Plate led 1 353356-001 6. Gasket, plate led 1 353589-001 item no. Description qty. ...

  • Page 11

    L8400p block diagram l 8400p l series 10

  • Page 12

    L 8400p l series 11 note: designators are wrong (swapped) for l8 and l11. Both drawing and actual pcb on model fifteen.

  • Page 13

    L 8400p l series 12.

  • Page 14

    L 8400p l series 13.

  • Page 15

    L 8400p l series 14.

  • Page 16

    L8400p (120v) electrical parts list part number description reference designator qty main amp/supply pcb resistors 024-000098-120 gs smd resistor 0r 1/8w j 0805 (r8) r8 1 024-100498-120 smd resistor 1k 1/8w j 0805 (r110) r110 1 024-100598-120 gs smd resistor 10k 1/8w j 0805 () r5,7,16,118,121,122,12...

  • Page 17

    Part number description reference designator qty main amp/supply pcb 054-414803-100zr gr smd diode pn:ll4148gso8 (vishay)() d4-5,13,14,21,22,31,33,38,41,45,48,34,6,90,91, 16 054-540100-100 smd transistor (pnp) pn:mmbt5401 lt1 sot-23 (q1) q1 1 054-555100-100 smd transistor (npn) pn:mmbt5551 lt1 (on)(...

  • Page 18

    Part number description reference designator qty drive board semiconductors 054-000100-100 gs smd diode: pn:es1d 200v 1a (d35,43) d35,43 2 054-001002-100 smd zener diode pn:bzx84c10 10v sot-23 (d42,49) d42,49 2 054-005501-100 smd zener diode pn:bzv55c3v6 (philips)(d60) d60 1 054-007200-100l smd ic: ...

  • Page 19

    Part number description reference designator qty pre-amp. Board 031-470444-101a smd cap. 4700pf/50v k x7r 1206 c2g1 1 031-680444-100a smd cap. 6800pf/50v k x7r 1206 c212 1 033-200645-300 gr np cap. 200u/50v m (r)1321 p:5 c300,301 2 034-100515-300g electrolytic cap. 10uf/16v m (r)0511 p:2 c220 1 034-...

  • Page 20

    L 8400p l series 19.

  • Page 21

    00 01 l 8400p l series 20

  • Page 22

    00 01 l8400p l series 21.

  • Page 23

    00 01 l8400p l series 22.

  • Page 24

    00 01 l 8400p l series 23.