JBL ES150P User manual

Service Manual
Released EU2008 Harman/kardon, Inc. Rev 0, 1/2008
250 Crossways Park Dr.
Woodbury, New York, 11797
ES 150P/230V
Powered subwoofer
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- CONTENTS -
BASIC SPECIFICATIONS …………….……..…………..2
DETAILED SPECIFICATIONS ……….……..…………..3
PARTS LIST....……………………………….….….…......5
TEST SET-UP AND PROCEDURE......……..…...…..…6
EXPLODED VIEW/PARTS LIST…….….….…………....7
SCHEMATICS................................….….……………....9
P.C.B. DRAWINGS….…………………………………...10
ES150P SPECIFICATIONS
Amplifier Power (RMS): 300 Watts
Peak Dynamic Power *: 500 Watts
Driver: 10" (254mm) PolyPlas™
Inputs: Line Level (switchable to LFE)
Low-Pass Frequency: Variable from 50Hz to 150Hz
(24dB/octave, continuously variable)
Frequency Response: 27Hz – Low-pass crossover setting
Dimensions (H x W x D): 18" x 13-1/4" x 15-1/4" (457mm x 337mm x 387mm)
Weight: 39 lb/17.7kg
JBL continually strives to update and improve existing products, as well as create new ones. The
specifications and details in this and related JBL publications are therefore subject to change without notice.
* The Peak Dynamic Power is measured by recording the highest center-to-peak voltage measured across the output of a resistive load equal to
minimum impedance of the transducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off.
ES150P
Service Manual
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JBL ES150P 225W Powered Sub 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 207-253 230 Vrms Normal operation, MOMS required
Parameter Specification Unit QA Test Limits Conditions Notes
Amp Section
Type (Class AB, D, other) D n/a n/a
Min. Load Impedance (speaker) 4 Ohms n/a Nominal
AVG System impedance 5.18 Ohms Reference AP Computed based on system
impedance curve Over the BW of 20 to 500Hz
Rated Output Power 225 Watts 210
AVG RMS Dynamic Power 245 Watts 240
Average RMS power, 3/20 Cycles 50 Hz,
Driven 6dB above its input sensitivity ,
average of the first 4 consecutive peaks
THD @ Rated Power 0.5 % 1 22k filter
THD @ 1 Watt 0.2 % 0.3 22k filter
DC Offset 10 mV-DC 30 @ Speaker Outputs
Damping factor >50 DF 20 Measured at amplifier board Measured at the speaker cable. 189 Watts
@ THD < 0.1 % @ 50 Hz
Input Sensitivity
Input Frequency 50 Hz 50 Nominal Freq.
L or R Inputs 11 mVrms ±1dB To 1 Watt Single input driven
LFE mode using L or R inputs 11 mVrms ±1dB To 1 Watt Single input driven, LFE switch ON
System Gain 45 dB Reference Single input driven Normal or LFE mode
Signal to Noise
SNR-A-Weighted 80 dBA 75 relative to 1W A-Weighting filter
SNR-unweighted 65 dBr 60 relative to 1W 22K filter
Residual Noise Floor <2.0 mVrms(max) 2.5
Volume @max, w/ A/P Swept
Bandpass Measurement (Line
freq.+ harmonics) (BW=20 KHz) Line level inputs must be terminated using 1KOHM
Input Impedance
Line Input (L, R,LFE) 10K ohms n/a Nominal
Filters
LP filter Variable 50-150 Hz ± 10 4th Order variable-24 db/Octave
Subsonic filter (HPF) 2nd Order Fixed
Friend circuit Fixed
LFE Low pass 200>LP<500 Hz LFE input driven only
Limiter
THD at Max. Output Power 13 % functional
Drive unit 6dB above the required
level to obtain full power
Approximately 208mV Maximum THD as a result of limiting.
Features --
Volume pot Taper (lin/log) LOG -- functional A Taper
Phase switch 0-180 deg functional
LP Filter defeat switch YES functional Disables LP filter, intended for LFE
LED indicator YES functional Bicolor LED located in top of the cabinet,
RED-Standby, GRN-Active
Input Configuration
Line In (L,R) & LFE YES -- functional Dual RCA jack, for LFE use either L or R inputs
Signal Sensing (ATO)
Auto-Turn-On (yes/no) YES functional
ATO Input test frequency 50 Hz functional
ATO Level LFE Input 2 mV functional Maximum acceptable level.
ATO Turn-on time 5 ms functional Amp connected and AC on, then
input signal applied
Auto Mute/ Turn-OFF Time 5-15 minutes 5-15 T before muting, after signal is
removed Auto turn of time (T) must be 5 > T < 15 Minutes
Power on Delay time 3 sec. 4 After AC Power is applied
ES150P
Service Manual
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Parameter Specification Unit QA Test Limits Conditions Notes
Transients/Pops
ATO Transient 0.5 V-peak 0.5V @ Speaker Output
A
mplifier activated by signal presence at the
Line input
Turn-on Transient 0.5 V-peak 0.8V @ Speaker Output AC Line cycled from OFF to ON
Turn-off Transient 0.5 V-peak 0.8V @ Speaker Output AC Line cycled from ON to OFF
Efficiency
Efficiency 61 % 60 Test conducted at rated power
250W Nominal Line voltage
Efficiency at 1/8 of rated power 45 % 42 Test conducted at 31.25 WRMS Nominal Line voltage-Rated impedance 4
Ohms
Off state input power 12 Watts 14 Nominal Line voltage RED LED
Stand-by Input Power 18 Watts 18 @ nom. line voltage
Maximum allowable input power under
nominal Input voltage and frequency, HOT
or COLD operation. LED GREEN no signal
applied
Power Cons. @ rated power 367 Watts 375 @ nom. line voltage 225 Watts @ 4 Ohms nominal line voltage
Protections
Short Circuit Protection YES functional Direct short at output Amplifier should resume operation after
short circuit condition removal
Thermal Protection YES functional @1/8 max unclipped Power at
1.06 times the input voltage
Temperature rise in accessible metal parts
should not exceed 35K rise for domestic
version or 30K rise for European versions
(refer to requirements sheet).
DC Offset Protection YES - DC present at Speaker Out leads
Design must insure no Offset at the speaker
output under any operating condition
including abnormal operation
Line Fuse Rating
USA-Domestic 3.15 Amps 3.15 Type-T or Slo Blo-250 V Internal fuse with UL/SEMKO rated holder
EU 2 Amps 2Type-T or Slo Blo-250 V, Low
Breaking capacity Internal fuse with UL/SEMKO rated holder
Other Parameters/Notes:
1. Limiter circuit response must be clean sounding with no apparent pops, noises, or pumping.
2. Plate dimensions not to exceed 11.81"H x 7.87"W and the plate must be airtight with no possibility of air leaks (plastic cover required).
3. Volume control should be at the input buffer stage in order to lessen the possibility of clipping the input section with highly dynamic audio material.
4. ALL SPECS SHOULD BE MEASURED AT NOMINAL LINE VOLTAGE.
ES150P
Service Manual
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Part Number Description Qty
241-100-05361-0RAE Cabinet, cherry 1
241-100-05361-0BAE Cabinet, black 1
241-100-05361-0YAE Cabinet, beech 1
327-010-00622-E BLACK Button 4
249-HPS-05178-0BAE HIPS port tube 1
328-000-05496-0WAE White damping material 1
244-100-05276-0BAE Plastic grille with logo 1
403-000-05489-E Paper board 1
25PR12FZL-DW04-E 10'' woofer 1
010-7620-05103-E AMP 1
361-NYL-05101-0BAE LED base 1
315-HPS-05097-0AAE Logo base 1
316-HPS-05236-0AAE Logo 1
352-KM03520D1148-E hex head screw,galvanized φ3.5*L20 d=7mm 4
213-100-05156-0AAE HIPS trim ring 1
352-KM04020D1149-E hex head screw,galvanized φ4.0*L20 d=8mm 8
321-ABS-00008-E Feet pole ,plastic parts 4
321-RUB-00009-E Feet pole, rubber parts 4
352-HM04030D500-E Screw t4*30 4
352-AM04020D880-E Screw, Φ4*L20 d=8mm 10
406-000-05610-E OM 1
400-000-07836-E Carton 1
MODEL NAME: ES150P/230
JBL ES 150P/230V
Service Manual
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ES150P Test Set Up and Procedure
Equipment needed:
•Function/signal generator/sweep generator
•Integrated Amplifier
•Multimeter
•Speaker cables
General Unit Function (UUT = Unit Under Test)
1) From the signal generator, connect line level (RCA) cables to the Subwoofer Line Level Input jacks L/R on
the UUT. Use a Y-cable from a mono source if necessary to connect to both inputs.
2) Turn the CROSSOVER control to maximum (150).
3) Turn the LEVEL control on the UUT to completely counterclockwise (MIN).
4) LFE/NORMAL switch should be in NORMAL position.
5) PHASE switch position does not matter.
6) Turn on generator; adjust to 75mV, 50 Hz.
7) Plug in UUT; turn the power switch ON. LED should switch from Red to Green.
8) Turn LEVEL control full clockwise (MAX); immediate and vigorous bass response should be heard and felt
from port tube opening on the bottom.
9) Turn off generator, turn LEVEL control full counterclockwise (MIN), and disconnect RCA cable.
Sweep Function
1) Follow steps 1-8 above, using a sweep generator as a signal source.
2) Sweep generator from 20Hz to 300Hz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or
any other noises. If any unusual noises are heard, remove woofer and test.
Driver Function
1) Remove woofer from cabinet; detach + and - wire clips.
2) Check DC resistance of woofer; it should be 3.4 ohms ±10%
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 5.0V.
4) Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises.
ES150P
Service Manual
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ES150P
JBL ES 150P/230V
Service Manual
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Service Manual
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