Service Bulletin
Service bulletin # JBL2005-01 December 2005
Warranty labor rate: MINOR repair
To: All JBL Service Centers
Model: E150P, E250P Subwoofers
Subject: “Chirp” Noise on Power-Up
In the event you receive an E150P or E250P with the complaint: “the subwoofer make a slight “chirp”
noise when it becomes active from the stand-by mode”, perform the following modification.
Synopsis: Change C65 PE capacitor from 470µf to 47µf.
1) Remove the amplifer from the enclosure.
2) Remove the cover.
3) Change C65 Electrolytic capacitor from 470µf,16V to 47µf,16V, JBL part# 034-470515-200. Observe
polarity.
4) Replace cover, replace amplifier in enclosure, test subwoofer.
15
E150P
subwoofer
Summary of Contents for E150P
Page 15: ...E150P P10SW subwoofers 14 P10SW P12SW...
Page 21: ...20 E150P P10SW subwoofers...
Page 22: ...21 E150P P10SW subwoofers...
Page 23: ...22 E150P P10SW subwoofers...
Page 24: ...23 E150P P10SW subwoofers...
Page 31: ...NOTE THIS VOLTAGE IS REFERENCED TO V NOT CIRCUIT GROUND 30 E150P P10SW subwoofers...