Read JBL PSW-D112 (serv.man4) Service Manual online
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Amplifier/Subwoofer
PSW-D112/DPS-12
3. Low-Pass
-Set up
Set Generator at 100mV@100Hz
Signal to Low level input
Measure voltage at speaker output
Signal to Low level input
Measure voltage at speaker output
-Voltage measurement
Low-Pass Pot Setting
Output
CW
12.2V
CCW
1.2V
4. High-Pass
-Set up
Set Generator at 100mV@100Hz
Signal to Low level input
Measure voltage at high-pass output
Signal to Low level input
Measure voltage at high-pass output
-Voltage measurement
High-Pass Pot Setting
Output
CW
24mV
CCW
55mV
5. Direct out
-Set up
Set Generator at 100mV@100Hz
Signal to Low level input
Signal to Low level input
-Voltage measurement 100mV at direct out
See flow chart next page for diagnostics.
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