JBL PowerBass PB10 Service Manual page 15

MODEL
Serial numbers are located on the cabinet directly below
PB10 See serial numbers on Page 3 for factory
PB12
* Revision 1 of the PB10/12:
JBL Incorporated
PB10/12 Revision 1 Only
Serial Number (120v)
the amplifier faceplate.
modified units
Amplifier faceplate says "Made in Canada"; Amplifier serial number starts with "AM"
Black (or silver) potted, non-serviceable S53/64AMI output module. PB10 only – No Power switch
250 Crossways Park Dr.
STATUS
Hum, Buzz or "Thumping"
Hum, Buzz or "Thumping"
Woodbury, New York 11797 (516) 496-3400
ACTION
Replace Power Amp Module S53AMI
for symptoms described in #C only
Replace Power Amp Module S64AMI
for symptoms described in #C only
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