Roland CUBE-ST Operating and maintenance manual

SERVICE NOTES
Issued by RJA
Copyright © 2007 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of ROLAND CORPORATION.
Printed in Japan (0370) (SC-KWS)17058510E0
Sep. 2007 CUBE-ST/CUBE-ST-R
CUBE-ST
CUBE-ST-R
Table of Contents
Cautionary Notes ..............................................................2
Specifications .....................................................................3
Difference between CUBE-ST and CUBE-ST-R ............3
Location of Controls .........................................................4
Location of Controls Parts List........................................5
Exploded View ..................................................................6
Exploded View Parts List.................................................8
Parts List ...........................................................................10
Checking Version Number ............................................12
Test Mode .........................................................................12
Block Diagram .................................................................14
Circuit Board (Main, Jack, Input, Mic Board) .............16
Circuit Diagram (Main Board: 1/3, Jack Board).........18
Circuit Diagram (Main Board: 2/3)..............................20
Circuit Diagram (Main Board: 3/3)..............................22
Circuit Diagram (Input, Mic Board) .............................24
Circuit Board (Panel, Pedal Board)...............................26
Circuit Diagram (Panel, Pedal Board)..........................28
Revise Information
2008. 01. 25 p. 10 Added symbols.

2
CUBE-ST/CUBE-ST-RSep. 2007
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.
Part Replacement
When replacing components near the power-supply circuit or a heat-
generating circuit (such as a circuit provided with a heat sink or including a
cement resistor), carry out the procedure according to the instructions with
respect to the part number, direction, and attachment position (mounting so as
to leave an air gap between the component and the circuit board, etc.).
Parts List
A component whose part code is ******** cannot 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).
Circuit Diagram
In the circuit diagram, “NIU” is an abbreviation for “NOT IN USE.” The circuit
board and circuit board diagram show silk-screened indications, but no
components are mounted.

3
Sep. 2007 CUBE-ST/CUBE-ST-R
Specifications
CUBE-ST, CUBE-ST-R
Rated Power Output
STEREO 5 W (2.5 W + 2.5 W)
Nominal Input Level (1 kHz)
MIC/LINE Channel: -50/-10 dBu
GUITAR/INSTRUMENT Channel: -10 dBu
STEREO AUX IN: -10 dBu
* 0 dBu = 0.775 V rms
Speakers
16 cm (6.5 inches) x 2
Controls
POWER Switch
<MIC/LINE Channel>
SELECT Switch (MIC/LINE)
VOLUME Knob
EQUALIZER Knobs (BASS, TREBLE)
DELAY/REVERB Knob
<GUITAR/INSTRUMENT Channel>
TUNER Switch
TYPE Switch
GAIN Knob
VOLUME Knob
EQUALIZER Knobs (BASS, MIDDLE, TREBLE)
EFX Knob
DELAY/REVERB Knob
Indicators
TUNER
POWER
Connectors
<MIC/LINE Channel>
Input Jacks (XLR type, 1/4-inch phone type)
Foot Switch Jack (1/4-inch TRS phone type, TIR: mute, RING: DELAY/
REVERB)
<GUITAR/INSTRUMENT Channel>
Input Jack (1/4-inch phone type)
Foot Switch Jack (1/4-inch TRS phone type, TIR: EFX, RING: DELAY/
REVERB)
AUX IN Jack (Stereo miniature phone type)
PHONES Jack (Stereo 1/4-inch phone type)
AC Adaptor Jack
Power Supply
DC 9 V: AC Adaptor or Dry Battery (LR6 (AA) type) (optional) x 6
Current Draw
235 mA
Dimensions
415 (W) x 295 (D) x 250 (H) mm
16-3/8 (W) x 11-5/8 (D) x 9-7/8 (H) inches
Weight
5.2 kg (including Battery)
11 lbs 8 oz (including Battery)
Accessories
AC Cord for 117V (#01903345)
for 230V (#01903356)
for 240V (#03785590)
AC Adaptor (#04236101)
Owner’s Manual English (#SD001041)
Options
Carrying Case: CB-CS1
Foot Switch: FS-5U (BOSS), FS-6(BOSS)
Connection Cable: PCS-31
* In the interest of product improvement, the specifications and/or appearance of
this unit are subject to change without prior notice.
Difference between CUBE-ST and CUBE-ST-R
CUBE-ST-R is different from CUBE-ST in the following parts. Other specifications are all same.
CUBE-ST CUBE-ST-R
Part Code Part Name Description Part Code Part Name Description
SD001030 CABINET ASSY Black SD001031 CABINET ASSY Red
SD001028 GRILL Silver SD001029 GRILL Bright Silver
SD001042 PACKING CASE SD001043 PACKING CASE

4
CUBE-ST/CUBE-ST-RSep. 2007
Location of Controls
fig.panel1.eps_50
fig.panel2.eps_50

5
Sep. 2007 CUBE-ST/CUBE-ST-R
Location of Controls Parts List
No. Part Code Part Name Description Q’ty
1 SD000911 POTENTIOMETER RD901F-40E1-15F-0B10K-00DM8 10
SD000043 R-KNOB W/HOT STAMP 10
17048630 VR ACCESSORY NUT M9 10
40452178 VR WASHER M9 10
2 SD001038 LED GREEN L-710XVGD-E-SZ 1
3 SD001037 LED RED L-710XSURD-E-SZ 3
4 02456390 3.5MM JACK STEREO YKB21-5290 1
5 13449252 6.5MM JACK YKB21-5006 (STEREO W/SW) 1
22150756 JACK NUT 2 PLASTIC/BLK 1
6 01901001 XLR CONNECTER NCJ9FI-H 1
40011101 SCREW 3X8 BINDING TAPTITE B BZC 2
7 SD000082 PUSH BUTTON 1
01348745 SWITCH (PUSH) SPUP192700LF 1
8 SD000043 R-KNOB W/HOT STAMP 1
SD001036 POTENTIOMETER RV110F-20E1-15A-B100K-0061 1
17048630 VR ACCESSORY NUT M9 1
40452178 VR WASHER M9 1
9 13449146 6.5MM JACK YKB21-5012 (W/SW) 1
22150756 JACK NUT 2 PLASTIC/BLK 1
10 SD000906 KEY TOP 2
SD001037 LED RED L-710XSURD-E-SZ 1
11 SD000907 ROTARY SWITCH SR1712F-0108-175F0A-N9-N-008 1
SD000043 R-KNOB W/HOT STAMP 1
17048630 VR ACCESSORY NUT M9 1
40452178 VR WASHER M9 1
12 02897801 SEESAW SWITCH SDDJE13200 94V-0 1
13 40454856 SCREW M4X10 BINDING NI 1
14 13449717 ADAPTOR JACK HEC2392-0101509 1
15 40237101 SCREW M3X8 PAN MACHINE W/SW+SMALL PW BZC 1
16 13449252 6.5MM JACK YKB21-5006 (STEREO W/SW) 2
22150756 JACK NUT 2 PLASTIC/BLK 1
17 22365714 CORD HOOK 1
40237101 SCREW M3X8 PAN MACHINE W/SW+SMALL PW BZC 1
18 SD001033 BATTERY COVER ASSY 1

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CUBE-ST/CUBE-ST-RSep. 2007
Exploded View
fig.bunkai.eps@L

7
Sep. 2007 CUBE-ST/CUBE-ST-R
fig.bunkai.eps@R

8
CUBE-ST/CUBE-ST-RSep. 2007
Exploded View Parts List
Parts
No. Part Code Part Name Description Q’ty
1 SD000017 BADGE 1
2 SD001028 GRILL SILVER (for CUBE-ST) 1
SD001029 GRILL BRIGHT SILVER (for CUBE-ST-R) 1
3 SD001030 CABINET ASSY BLACK (for CUBE-ST) 1
SD001031 CABINET ASSY RED (for CUBE-ST-R) 1
* The CABINET ASSY includes the following parts.
4 SD001026 TRIM SASH 1
5 SD001023 CORNER PROTECTOR TOP 2
6 SD001024 CORNER PROTECTOR BOTTOM L 1
7 SD001025 CORNER PROTECTOR BOTTOM R 1
8 SD001027 RUBBER FOOT D30.5XT10.5 4
9 SD001032 SPEAKER W6504-436A 2
10 SD001022 CHASSIS ASSY 1
* The CHASSIS ASSY includes the following parts.
******** EVA PACKING 370x40x1t W/ADH 1
******** EVA PACKING 100x20x1t W/ADH 2
******** EVA PACKING 120x10x1t W/ADH 4
******** EVA PACKING 19x15x0.5t W/ADH 4
11 SD000035 HANDLE WITH ESCUTCHEON 1
12 SD000043 R-KNOB W/HOT STAMP 12
13 SD000993 MAIN BOARD ASSY 1
* The MAIN BOARD ASSY includes the following parts.
14 ******** JACK BOARD ASSY 1
15 ******** MIC BOARD ASSY 1
16 ******** INPUT BOARD ASSY 1
17 SD000995 PANEL BOARD ASSY 1
* The PANEL BOARD ASSY includes the following parts.
18 ******** PEDAL BOARD ASSY 1
19 22365714 CORD HOOK 1
20 SD000082 PUSH BUTON BLACK 1
21 SD000906 KEYTOP ROUND,WHITE 1
22 22150756 JACK NUT 2 PLASTIC/BLK 4
23 02897801 SEESAW SWITCH SDDJE13200 94V-0 1
24 SD000422 BATTERY SHEET 1
25 SD001033 BATTERY COVER ASSY 1
* The BATTERY COVER ASSY includes the following parts.
******** EVA PACKING 28x2x0.5t W/ADH 2
******** BATTERY CUSHION 1
26 SD000421 BATTERY PLATE 1
27 SD000418 BATTERY CASE 1
28 SD000427 BATTERY SPRING +- 1
29 SD000426 BATTERY SPRING + 1
30 SD000425 BATTERY SPRING - 1
31 SD001035 BATTERY WIRING 1
32 SD000464 HIMERON W/ADH 6 x 50 x t0.5 3
33 SD000446 HIMERON W/ADH 4x15xt0.25 2
34 SD001047 DC JACK HOLDER 1

9
Sep. 2007 CUBE-ST/CUBE-ST-R
Screws
No. Part Code Part Name Description Q’ty
a SD000067 SCREW 3X12 TRUSS TAPTITE A1 BZC 23
b 40010134 SCREW M4X20 BINDING MACHINE BZC 8
c 40010567 SCREW M4X35 SPECIAL TRUSS BZC 4
d SD000069 WASHER M4 11FAI ADDITIONAL WASHER 4
e 40230789 SCREW 3X10 OVALHEAD MACHINE BZC 2
f 40011689 SPEED NUT M3 F-TYPE 2
g 40010689 SCREW 4X25 TRUSS TAPTITE A1 BZC 4
h SD000370 PLATE WASHER 4.2X10X0.5T FEBC 4
i 40010667 SCREW 4X16 TRUSS TAPTITE A1 BZC 4
j 40010534 SCREW 4X20 ORIGINAL TRUSS MACHINE BZC 2
k 40564601 SCREW M5X35 OVALHEAD MACHINE BZC 2
L 40011323 SCREW 3X10 BINDING TAPTITE P BZC 6
m 40013067 SCREW M3x8 PAN MACHINE W/SW+SMALL PW ZC 7
n 40237101 SCREW M3x8 PAN MACHINE W/SW+SMALL PW BZC 7
o SD001046 STANDOFF HEX.BOSS 5.5x20 M3 5
p 40454856 SCREW M4x10 BINDING MACHINE Ni 1
q 40011312 SCREW 3X8 BINDING TAPTITE P BZC 2
r 40452178 VR WASHER M9 12
s 17048630 VR ACCESSORY NUT M9 12
t SD000916 WASHER M9 T=2.5 1

10
CUBE-ST/CUBE-ST-RSep. 2007
Parts List
fig.part1e
SAFETY PRECAUTIONS:
The parts marked have
safety-related characteristics. Use
only listed parts for replacement.
NOTE: The parts marked # are new. (initial parts)
Due to one or more of the following reasons,
parts with parts code ******** cannot be supplied as service parts.
• Part supplied only as a component in a complete assembly
• Copyright does not permit the part to be supplied
• Part is sold commercially
The description "Q'TY" means a necessary number of the parts per one product.
CASING
# SD001023 CORNER PROTECTOR TOP 2
# SD001027 RUBBER FOOT D30.5XT10.5 4
# SD001025 CORNER PROTECTOR BOTTOM R 1
# SD001024 CORNER PROTECTOR BOTTOM L 1
SD000017 BADGE 1
# SD001033 BATTERY COVER ASSY 1
# SD001030 CABINET ASSY BLACK (for CUBE-ST) 1
# SD001031 CABINET ASSY RED (for CUBE-ST-R) 1
# SD001022 CHASSIS ASSY 1
22365714 CORD HOOK 1
# SD001028 GRILL SILVER (for CUBE-ST) 1
# SD001029 GRILL BRIGHT SILVER (for CUBE-ST-R) 1
SD000035 HANDLE WITH ESCUTHEON 1
# SD001026 TRIM SASH 1
KNOB, BUTTON
SD000043 R-KNOB W/HOT STAMP 11
SD000906 KEYTOP 1
SD000082 PUSH BUTTON 1
SWITCH
SD000907 ROTARY SWITCH SR1712F-0108-175F0A-N9-N-008 SW1 on Panel Board 1
01348745 SWITCH (PUSH) SPUP192700LF SW1 on MIC Board 1
02897801 SEESAW SWITCH SDDJE13200 94V-0 1
JACK, EXT TERMINAL
13449146 6.5MM JACK YKB21-5012 (W/SW) JK3 on Input Board 1
13449252 6.5MM JACK YKB21-5006 (STEREO W/SW) JK1 on Main Board, JK4, JK5 on Pedal Board 3
02456390 3.5MM JACK STEREO YKB21-5290 JK2 on Main Board 1
01901001 XLR CONNECTER NCJ9FI-H JK4 on MIC Board 1
13449717 ADAPTOR JACK HEC2392-0101509 JK6 on Jack Board 1
SPEAKER, BUZZER
# SD001032 SPEAKER W6504-436A 2
PWB ASSY
# SD000993 MAIN BOARD ASSY 1
# SD000995 PANEL BOARD ASSY 1
DIODE
# SD001038 LED (GREEN) L-710XVGD-E-SZ LED3 on Panel Board 1
# SD001037 LED (RED) L-710XSURD-E-SZ LED1, LED2, LED4, LED5 on Panel BORD 4
POTENTIOMETER
# SD001036 POTENTIOMETER RV110F-20E1-15A-B100K-0061 VR1 on MIC Board 1
SD000911 POTENTIOMETER RD901F-40E1-15F-0B10K-
00DM8
VR1-VR10 on Panel Board 10
FUSE, FUSE HOLDER
# SD001039 FUSE MRT160/250V F2 on Main Board 1
F2559306R0 FUSE MRT 1.6A/250V F1 on Jack Board 1
WIRING, CABLE
# SD001035 BATTERY WIRING 1

11
Sep. 2007 CUBE-ST/CUBE-ST-R
SCREWS
SD000067 SCREW 3X12 TRUSS TAPTITE A1 BZC for Corner Protector, Trim Sash 23
40010667 SCREW M4X16 TRUSS TAPPING-A FE BZC for CHASSIS 4
40010689 SCREW 4X25 TRUSS TAPPING A1 FE BZC for Foot 4
40010134 SCREW M4X20 TRUSS MACHINE BZC for Speaker 8
40010534 SCREW M4X20 SPECIAL TRUSS BZC for CHASSIS 2
22150756 JACK NUT 2 PLASTIC/BLK 4
40013067 SCREW M3X8 PAN MACHINE W/
SW+SMALL PW ZC
for PCB 7
40237101 SCREW M3X8 PAN MACHINE W/
SW+SMALL PW BZC
for PCB, JACKHOLDER, Cord HOOK 7
40564601 SCREW M5X35 OVALHEAD MACHINE BZC for Handle 2
40230789 SCREW 3X10 OVAL MACHINE BZC for Badge 2
40010567 SCREW M4X35 ORIGINAL TRUSS FE BZC for Grill 4
# SD001046 STANDOFF HEX.BOSS 5.5X20 M3 for PCB 5
40011689 SPEED NUT M3 F-TYPE for Badge 2
SD000430 PLANE WASHER D11 D4.1 T1 BLACK for Grill 4
40011101 SCREW 3X8 BINDING TAPTITE B BZC for XLR Connector 2
40454856 SCREW M4X10 BINDING NI for CHASSIS 1
SD000370 PLATE WASHER 4.2X10X0.5T FEBC for Foot 4
17048630 VR ACCESSORY NUT M9 for VR, ROTARY SW 12
40452178 VR WASHER M9 for VR, ROTARY SW 12
40011112 SCREW 3X10 BINDING TAPTITE B BZC for Battery Box 6
40011312 SCREW 3X8 BINDING TAPTITE P BZC 2
40011323 SCREW 3X10 BINDING TAPTITE P BZC 6
SD000069 WASHER M4 11FAI ADDITIONAL WASHER 4
SD000916 WASHER M9 T=2.5 1
PACKING
# SD001044 PACKING PAD UPPER 6
# SD001045 PACKING PAD LOWER 2
# SD001042 PACKING CASE for CUBE-ST 1
# SD001043 PACKING CASE for CUBE-ST-R 1
MISCELLANEOUS
SD000446 HIMERON 87-YP5-228-01 4X15XT0.25 VR 2
SD000464 HIMERON W/ADH 6 X 50 X 0.5T BADGE 2
SD000418 BATTERY CASE 1
SD000421 BATTERY PLATE 1
SD000422 BATTERY SHEET 1
SD000426 TERMINAL SPRING + 1
SD000427 TERMINAL SPRING +- 1
SD000425 TERMINAL SPRING - 1
SD001047 DC JACK HOLDER 1
ACCESSORIES (Standard)
# SD001040 OWNER’S MANUAL JAPANESE 1
# SD001041 OWNER’S MANUAL ENGLISH 1
40232334 WARRANTY CARD MOCHIKOMI JAPAN ONLY 1
04236101 AC ADAPTOR WITHOUT AC
CORD
PSB-1U (S) UNIVERSAL 1
01903334 AC CORD SET PSE 100V 1.0M FOR PSB-1U 1
01903345 AC CORD SET 120V 1.0M FOR PSB 1
01903356 AC CORD SET 230V 1.0M FOR PSB 1
03785590 AC CORD SET SC-078-NA05 240VA 1

12
CUBE-ST/CUBE-ST-RSep. 2007
Checking Version Number
Required Items
• Foot Switch (BOSS FS-5U x 2 or FS-6)
• Connection Cable for Foot Switch (PCS-31 or PCS-33)
Procedure
1. Connect the Foot Switch to FOOT SW [MIC/LINE CH].
* Set the polarity switch of FS-5 to the jack side.
2. Set each switch of the panel as follows.
POWER SW:OFF
INPUT SELECT:LINE
AMP TYPE: INSTURUMENT
All knobs: Minimum (0 or OFF)
3. Hold down the pedal of FS-5U which is connected to [MUTE] of the
FOOT SW jack.
All LEDs on the panel light for about one second. Hold down the FS-5U
while the LEDs is lighting.
4. Release your hand immediately after the LEDs go off, and then press it
two times.
After the all LEDs blink for a while, the version number is displayed as
follows.
o: blinks, blank: goes off
5. Turn off the power of the CUBE-ST.
Test Mode
Required Items
• Foot Switch (BOSS FS-5U x 2 or FS-6)
• Connection Cable for Foot Switch (PCS-31 or PCS-33)
• Dummy Plug
Entering Test Mode
Execute the step 1–4of “Checking Version Number” (p. 12).
After checking the version number, press FS-5U connected [MUTE] of the
FOOT SW jack. Then you’ll enter “1. DSP Test” for the first test item.
Exiting Test Mode
Turn off the power.
Skipping Test Items
You can’t skip test items.
Details for Test Items
1. DSP Test
DSP Test starts automatically as soon as you enter the Test Mode.
In DSP Test, the LED of Left, Center and Right will light in this order
corresponding to the progress of the test.
When the result of test is OK:
LEDs of Left, Center and Right blink.
When the result of test is NG:
LED of TUNER blinks.
If the test is OK, press FOOT SW [MUTE] to advance to the next test item.
Version Left (RED) Center (GREEN) Right (RED)
1.00 o
1.01 o
1.02 o
1.03 o o
1.04 o o
1.05 o o

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Sep. 2007 CUBE-ST/CUBE-ST-R
2. Switch Test
When entering Switch Test, all LEDs go off temporarily.
Operate buttons, rotary switches, plugs and foot switches as the order in the
following table.
LEDs with “o” in the table will light, LEDs with “*” in the table will blink, and
LEDs with “-” will go off.
* If you mistake the order of operations or operate more than one item at a time,
LEDs of Left and Right will blink.
o: lights, *: blinks, -: goes off
If the test is OK, press FOOT SW [MUTE] to advance to the next test item.
3. Volume Test
When entering Volume Test, all LEDs go off temporarily.
Operate the following knobs minimum–center–maximum and confirm the all
knobs work correctly with its LED.
* If you mistake the order, the knob will not response.
* After detecting all of the minimum, center and the maximum value, test
program advances to test of the next knob.
• MIC/LINE CHANNNEL BASS
• MIC/LINE CHANNNEL TREBLE
• MIC/LINE CHANNNEL DELAY/REVERB
• GUITAR/INSTRUMENT CHANNNEL BASS
• GUITAR/INSTRUMENT CHANNNEL MIDDLE
• GUITAR/INSTRUMENT CHANNNEL TREBLE
• GUITAR/INSTRUMENT CHANNNEL EFX
• GUITAR/INSTRUMENT CHANNNEL DELAY/REVERB
• GUITAR/INSTRUMENT CHANNNEL VOLUME
• GUITAR/INSTRUMENT CHANNNEL GAIN
When the test of all volume is completed, LEDs of Left, Center and Right will
blink.
Then, test is finished.
Operation Lighting LED
Left Center Right TUNER
Press button
1 SELECT o o o -
2 TUNER - - - o
Rotate rotary switch
4 INSTRUMENT o o o -
5 JC CLEAN o - - -
6 BLACK PANEL - - o -
7 BRIT COMBO o - - -
8 CLASSIC STACK - - o -
9 R-FIER STACK o - - -
10 ACOUSTIC SIM - - o -
11 MIC o - - -
12 ACOUSTIC SIM - - o -
13 R-FIER STACK o - - -
14 CLASSIC STACK - - o -
15 BRIT COMBO o - - -
16 BLACK PANEL - - o -
17 JC CLEAN o - - -
18 INSTRUMENT o o o -
Pull out/Insert plug, Press Foot Switch
19 Insert into PHONES o - - -
20 Pull Out from
PHONES
o o - -
21 Press FOOT SW DE-
LAY/REVERB
o o o -
22 Pull Out from FOOT
SW
- - - -
23 Insert into FOOT SW
GUITAR/INST CH
o - - -
24 Press FOOT SW EFX o o - -
25 Press FOOT SW DE-
LAY/REVERB
o o o -
26 Pull Out from FOOT
SW
- - - -
27 Insert into FOOT SW
MIC/LINE CH
* * * -
Position of Knob Lighting LED
0or OFF Left
Center Left, Center
10 or maximum Left, Center, Right

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CUBE-ST/CUBE-ST-RSep. 2007
Block Diagram
fig.block.eps@L

15
Sep. 2007 CUBE-ST/CUBE-ST-R
fig.block.eps@R

16
CUBE-ST/CUBE-ST-RSep. 2007
Circuit Board (Main, Jack, Input, Mic Board)
fig.b-main-components.eps

17
Sep. 2007 CUBE-ST/CUBE-ST-R
fig.b-main-foil.eps

18
CUBE-ST/CUBE-ST-RSep. 2007
Circuit Diagram (Main Board: 1/3, Jack Board)
fig.c-main1.eps@L

19
Sep. 2007 CUBE-ST/CUBE-ST-R
fig.c-main1.eps@R

20
CUBE-ST/CUBE-ST-RSep. 2007
Circuit Diagram (Main Board: 2/3)
fig.c-main2.eps@L