QSC Audio CX User Manual

*Additional components that might be problematic:

XF-000064-00 Housekeeping Transformer T1
IC-000135-00 Top 210 chip U16
QD-000115-30 MURS160T3 Diode D60

QD-000102-30 1N4148 SMT 75V 75M D63-65,D67

PLC Series
Power Supply Restoration Kit

CX, DCA, PLX, and PL2 Series amplifiers

Thank you for purchasing the PLC Series Power Supply Restoration Kit. In this kit you will find an
assortment of parts that represent materials most often needed for restoring a faulty power
supply.* This kit is not intended for use with a more extensive failure.

WARNING: This parts kit is to be installed into a QSC amplifier by qualified service personnel
only. Attempting to service a QSC amplifier without the proper qualifications and equipment
can be hazardous and could damage a unit under repair. Please refer to the warnings below
as shown in the amplifier owner’s manual.

The PLC Power Supply Restoration Kit (QSC part # SG-000060-00) contains the following:

CAUTION: To reduce the risk of electric
shock, do not remove the cover. No
user-serviceable parts inside. Refer
servicing to qualified personnel.

WARNING: To prevent fire of electric
shock, do not expose this equipment
to rain or moisture.

Part Number Description Reference Qty.

QD-000169-00 XISTOR IGBT TO-247AC 600V 55A Q96 & 97 2
QD-000042-00 DIODE RECT ULTRAFAST 400V 3A D70 & 71 2
QD-000108-30 DIODE SMT SWITCH 200V .2A 50NS D78 & 79 2
QD-000113-30 DIODE ZNR 10V 5% D66 1
RE-001003-30 RESISTOR SMT 10 OHM 1% 1206 R358 & 359 2
RE-003921-30 RESISTOR SMT 39.2 OHM 1% R349 1

RE-000210-NR THERMISTOR NTC 15A R324 1

IC-000134-00 IC CMOS HV DRVR IR2110 U18 1
IC-000024-00 IC REG PWM 40V 0.1A SG3525A U19 1
IC-000053-30 IC LIN SMT DUAL TIMER LM556 U14 1
IC-000054-30 IC LIN SMT QUAD COMP LM339AM U13 1

NA Technical Support CD NA 1

These parts have been selected for optimum performance. Substitutes may not work. Using
these parts and following the schematics enclosed will ensure a proper update.

SG-000060- 0 0, Re v . A