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Roland AC-90 User Manual

Roland AC-90
35 pages
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40
Jul. 2007 AC-90
Circuit Board (Amp Board)
fig.AC90-pcb-amp-01.eps
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Roland AC-90 Specifications

General IconGeneral
Product colorBlack
Volume controlRotary
Bass adjustmentYes
Recommended usageStudio
Multi-Room Streaming (MRS) support-
Woofer diameter200 mm
Number of drivers4
Speaker placementFloor
Audio output channels1.0 channels
Number of tweeter drivers2
Woofer diameter (imperial)8 \
RMS rated power90 W
Number of amplifier channels2 channels
AirPlayNo
Audio (L/R) in1
Headphone connectivity6.3 mm
Connectivity technologyWired
Power source typeAC
AC input frequency50 - 60 Hz
Power consumption (typical)30 W
Weight and Dimensions IconWeight and Dimensions
Depth303 mm
Width464 mm
Height326 mm
Weight13900 g

Summary

Cautionary Notes

Specifications

Verifying the Version Number

Test Mode

Entry and operation of the diagnostic test mode for functional checks.

Version Display

DSP Test (Automatic Determination)

Switch Test

Signal-level Test (PCB State)

Signal-level Test (Product State)

Block Diagram/Wiring Diagram

Circuit Diagram (Main Board: Digital)

Circuit Diagram (Main Board: Analog, XLR Board)

Circuit Diagram (Main Board: Power Supply)

Circuit Diagram (Jack Board)

Circuit Diagram (Panel Board)

Circuit Diagram (PS1 Board)

Circuit Diagram (Amp Board)

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