PSW 1200 - JBL Audio Technical Bulletin (repair manual)

psw 1200 technical bulletin
Model
PSW 1200
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
16.78 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Audio
File
psw-1200.pdf
Date

Read JBL PSW 1200 Technical Bulletin online

Service Bulletin
 Service bulletin JBL9702 - May 1997
Warranty labor rate: MINOR repair
 To:
All JBL Service Centers
 Models:  PSW1000, PSW1200
 Subject:  Cycling ON & OFF every five seconds
In the event you receive a PSW1000 or PSW1200  with the complaint that the unit is cycling off & on
approximately every five seconds:
Procedure:
Remove the amplifier from the subwoofer enclosure and check the main PCB for the presence of R135,
(100 ohms).  If R135 is present at the location shown on the drawing below, remove it by cutting both
leads.  After removing R135, reassemble the product and verify proper operation by applying a 70 Hz,
25mV  signal (with the volume control halfway to full CW) to the low level input jacks.  When the signal is
applied the 70 Hz tone should be audible from the woofer, and the unit should no longer cycle on & off
every five seconds.
JBL Incorporated                     250 Crossways Park Dr.     Woodbury, New York 11797 (516) 496-3400
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Download JBL PSW 1200 Technical Bulletin

Here you can read online and download JBL PSW 1200 Technical Bulletin in PDF. PSW 1200 technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair JBL PSW 1200 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.