Roland AC-40 Service Notes

2
Jul. 2013 AC-40
Cautionary Notes
Before beginning the procedure, please read
through this document. The matters described may
differ according to the model.
No User Data
This product cannot save user data. Backing up user data during servicing is
not required.
Parts List
A component whose part code is ******** will not be supplied as a service part
because one of the following reasons applies.
• Because it is supplied as an assembled part (under a different part code).
• Because a number of circuit boards are grouped together and supplied as
a single circuit board (under a different part code).
• Because supply is prohibited due to copyright restrictions.
• Because reissuance is restricted.
• Because the part is made to order (at current market price).
• Because it is carried in electronic data on the Roland web site.
• Because it is a package or an accessory irrelevant to the function
maintenance of the main body.
• Because it can be replaced with an article on the market. (battery or etc.)
Circuit Diagram
In the circuit diagram, “NIU” is an abbreviation for “Not in Use,” and
“UnPop” is an abbreviation for “Unpopulated.” They both mean non-mounted
components. The circuit board and circuit board diagram show silk-screened
indications, but no components are mounted.

Roland AC-40 Specifications

General

Amplifier class	-
RMS rated power	17.5 W
Number of speakers	2
Speaker driver size	6.5 \
Audio output channels	2.0 channels
Sound effects quantity	1
Connectivity technology	Wired
Suitable for	Acoustic guitar
Product color	Black
Volume control	Rotary
Carrying handle(s)	Yes
Power source type	AC

Weight and Dimensions

Depth	241 mm
Width	362 mm
Height	265 mm
Weight	5300 g