Infinity CLASSIA PSW310W, Service Manual

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PSW310W Test Set Up and Procedure
The operation of the PSW310W subwoofer, and the proper settings for the Room Adaptive Bass Optimization System, or
R.A.B.O.S., is thoroughly covered in the Owner’s guide, available from www.infinitysystems.com.
For service purposes, the R.A.B.O.S. system is canceled when all three front panel controls (F) (L) (W) are turned fully
CW (Clockwise), or if the R.A.B.O.S. On/Off switch is OFF. The only other control of concern is the Main Level Control on
the front panel, which operates like a traditional potentiometer.
Equipment needed:
• Function/signal generator/sweep generator
• Integrated Amplifier
• Multimeter
• Speaker cables
• PSW310W Transmitter, power supply
General Unit Fu Transmitter (UUT = Unit Under Test)
1) From a mono output signal generator, OFF at this time, connect an RCA cable to the “Sub in” jack on the
PSW310W Transmitter. Assure the power supply has been plugged in and a Red or blinking Green LED is
now showing on the transmitter. Default “ID Code” switch position is 1.
2) Position and plug in the PSW310W Subwoofer nearby (less than 75’ away), power switch should be OFF.
3) CROSSOVER, PHASE controls do not matter for this test. Low Pass switch should be OFF. “ID Code”
switch position should be 1. RABOS On/Off switch should be OFF.
4) Turn the LEVEL control on the UUT to completely counterclockwise (MIN).
5) Turn on signal generator; adjust to
125mV, 50 Hz
. LED on Transmitter should now be steady Green.
6) Turn Subwoofer power switch ON. LED on faceplate should be momentarily Green, then Orange.
7) Turn LEVEL control full clockwise (MAX); immediate and vigorous bass response should be heard and felt
from main woofer at front of cabinet.
8) Turn off generator, turn LEVEL control full counterclockwise (MIN), and disconnect RCA cable.
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PSW310W subwoofer Classia Series