Roland syb-5 Operating and maintenance manual

SERVICE NOTES
Issued by RJA
Copyright © 2004 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 (0500) (TP)17058286E0
Sep.2004 SYB-5
CAUTIONARY NOTES ...................................................2
SPECIFICATIONS.............................................................2
LOCATION OF CONTROLS ..........................................3
LOCATION OF CONTROLS PARTS LIST ...................3
EXPLODED VIEW ............................................................4
EXPLODED VIEW PARTS LIST .....................................4
PARTS LIST........................................................................5
TEST MODE.......................................................................8
CIRCUIT BOARD............................................................12
CIRCUIT DIAGRAM......................................................14

2
Sep.2004
CAUTIONARY NOTES
PART LIST
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
SPECIFICATIONS
SYB-5: Bass Synthesizer
Nominal Input Level
-20 dBu
Input Impedance
1 Mohm
Nominal Output Level
-20 dBu
Output Impedance
1 kohm
Recommended Load Impedance
10 kohm or greater
Residual Noise
-96 dBu (IHF-A, Typ.); All knobs at center position
Controls
Pedal switch, EFFECT knob, DIRECT knob, FREQ knob, RES knob, DECAY/
RATE knob, MODE knob
Indicators
CHECK indicator (Serves also as battery check indicator)
Connectors
INPUT jack, OUTPUT A (MONO) jack, OUTPUT B jack, EXP jack, AC adaptor
jack (DC 9 V)
Power Supply
DC 9 V: Dry battery/9 V type (6F22 (carbon), 6LR61 (alkaline)), AC Adaptor
(PSA-series: optional)
Current Draw
50 mA (DC 9 V)
* Expected battery life under continuous use:
Carbon: 2 hours, Alkaline: 6 hours
These figures will vary depending on the actual conditions of use.
Dimensions
73 (W) x 129 (D) x 59 (H) mm
2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches
Weight
440 g /1 lb (including battery)
Accessories
Owner’s Manual ENGLISH:(#G6017385)
JAPANESE:(#G6017386)
Mode Label:(#G2507107)
Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and
“Information”):(##********)
Dry battery/9 V type (6LR61):(#********)
* The battery that was supplied with the unit is for temporary use-intended
primarily for testing its operation. We also suggest replacing this with an
alkaline dry cell.
Options
AC Adaptor (PSA-series)
Expression Pedal (Roland EV-5)
*0dBu = 0.775 Vrms
* In the interest of product improvement, the specifications and/or appearance of
this unit are subject to change without prior notice.

3
SYB-5
LOCATION OF CONTROLS
fig.panel
LOCATION OF CONTROLS
PARTS LIST
1
2
4
5
6
7
8
11
12
1314
3
3
9
10
NO PART CODE CATEGORY PART NAME DESCRIPTION Q’TY
1 22480220 KNOB,BUTTON P R-KNOB (INTERNAL) (SS) BF BLK/LCG
22480221 KNOB,BUTTON P O-KNOB (EXTERNAL) (OUTER) S BLK/LCG
F327985401 POTENTIOMETER POTENTIOMETER RD912D-20-20FWH-B54-6009
2 13449150MF JACK,EXT TERMINAL PHONE JACK (STEREO) HTJ-064-12D
H5039510 SCREWS NUT M9X12X2 FENI
H5039112 SCREWS WASHER M9
3 13449140MF JACK,EXT TERMINAL JACK (STEREO) HTJ-064-14D
H5039510 SCREWS NUT M9X12X2 FENI
H5039112 SCREWS WASHER M9
4 75E192T000 CASING PEDAL
5 2235730400 CASING FOOT BASE (PEDAL MAT) 235-304
6 H5029820 SCREWS SCREW M3X10 THUMB SCREW
7 13449104MF JACK,EXT TERMINAL JACK HTJ-064-13D
H5039510 SCREWS NUT M9X12X2 FENI
H5039112 SCREWS WASHER M9
8 22480260 KNOB,BUTTON P R-KNOB MF BLK/LCG
F3229160 POTENTIOMETER POTENTIOMETER RD901-20-15FP-B50K-0D 11CLICK
9 22480260 KNOB,BUTTON P R-KNOB MF BLK/LCG
F3279852 POTENTIOMETER POTENTIOMETER RD901-20-15FW-B54-006
10 G2217187 CASING PANEL
11 75E193C000 CASING CASE
12 1502928100 DIODE LED (RED) L-34HDSL
13 13449717 JACK,EXT TERMINAL ADAPTOR JACK HEC2392-01-150
14 2253753801 MISCELLANEOUS PSA CAUTION 253-538

4
Sep.2004
EXPLODED VIEW
fig.bunkaizu.eps
EXPLODED VIEW PARTS LIST
[PART]
[SCREW]
11
10
b
b
a
a
2
12 19
d
8
3
c
7
6
5
4
NO PART CODE PART NAME DESCRIPTION
113129710 SWITCH(PUSH) JM-0404
2 2226733300 CUSHION
3 F3419102 BATTERY CONNECTOR
4 G253751603 BOTTOM CAUTION PSA FCC/CE/C-TICK/EMC GRY
5 2235730500 BOTTOM BASE
6 2202785100 BOTTOM COVER
7 G2167301 INSULATION SPACER
8 2215770201 PEDAL GUIDE BUSH
9 2217710900 COIL SPRING
10 2235730400 FOOT BASE(PEDAL MAT)
11 75E192T000 PEDAL
12 75E193C000 CASE
NO PART CODE PART NAME DESCRIPTION Q‘TY
aH5039401 NYLON WASHER M3X6X0.5 2
b H501941301 SCREW M3X10 BINDING MACHINE FEBC 2
c H5029325 SCREW M3X6 PAN HEAD TAPTITE B1 FEBC 4
d H5029820 SCREW M3X10 THUMB SCREW 1

5
SYB-5
PARTS LIST
fig.part1e
SAFETY PRECAUTIONS:
The parts marked have
safety-relatedcharacteristics.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
CASING
#75E192T000 PEDAL 1
# G2217187 PANEL 1
# 75E193C000 CASE 1
2235730500 BOTTOM BASE 235-305 1
2235730400 FOOT BASE (PEDAL MAT) 235-304 1
2202785100 BOTTOM COVER 202-851 1
KNOB,BUTTON
22480260 P R-KNOB MF BLK/LCG 2
22480220 P R-KNOB (INTERNAL) (SS) BF BLK/LCG 2
22480221 P O-KNOB (EXTERNAL) (OUTER) S BLK/LCG 2
SWITCH
13129710 SWITCH (PUSH) JM-0404 SW1 1
JACK,EXT TERMINAL
13449140MF JACK (STEREO) HTJ-064-14D JK5,JK7 2
13449104MF JACK HTJ-064-13D JK6 1
13449150MF JACK (STEREO) HTJ-064-12D JK2 1
13449717 ADAPTOR JACK HEC2392-01-150 JK1 1
PWB ASSY
#75E193O000 OUT JACK ASSY OUTPUT A (MONO) 1
# 75E193M000 MAIN BOARD ASSY 1
703433L000 LED BOARD ASSY 1
# 75E193I000 IN JACK ASSY INPUT+EXP 1
IC
#F5179186 IC (CPU) UPD780034AGK-B20-9ET V1.00 IC5 1
02565501 IC (DSP) TC220CCA0AF-B01(MR3) IC7 1
F5179125 IC (DC-DC) S-8520E33MC-BJS-T2 IC6 1
02897778 IC (RESET) S-80130ALMC-JAP-T2 IC9 1
F5289101 IC (OP.AMP) NJM2100M 8P SOP IC2 1
15189261 IC (BIPOLAR OP AMP) M5218AFP-600E IC1,IC3,IC4 3
02451434 IC (AD/DA) AK4552VT IC8 1
TRANSISTOR
15329103 FET 2SK880GR-TE85R Q3 1
F5329530 FET 2SK879Y Q4,Q5,Q6,Q7 4
F5329502 FET 2SJ190 Q15 1
15319107 TRANSISTOR 2SC4116-GR(TE85R) Q1,Q8,Q9,Q10,Q11,Q12 6
15309104 TRANSISTOR 2SA1586-GR(TE85R) Q13 1
DIODE
F5339137 DIODE SS14 VF=0.45V D1,D3 2
1502928100 LED (RED) L-34HDSL LED1 1
F5339201 DIODE GS1G D2 1
15339119 DIODE 1SS-352 D4,D5,D6,D7 4
RESISTOR
F5399160 MTL.FILM RESISTOR 56K J R9,R25,R29,R44,R45,R48,R49,R52,R53,R56,
R57,R63
12
F5399106 MTL.FILM RESISTOR 47 J R78 1
F5399298 MTL.FILM RESISTOR 4.7 J R100 1
F5399156 MTL.FILM RESISTOR 33K J R64 1

6
Sep.2004
F5399154 MTL.FILM RESISTOR 27K J R89 1
F5399152 MTL.FILM RESISTOR 22K J R7,R8,R10,R15,R16,R24,R28,R31,R32,R36,R
37,R38,R42,R61,R62,R65
16
# F5399190 MTL.FILM RESISTOR 220K J R71 1
F5399130 MTL.FILM RESISTOR 2.2K J R1 1
F5399200 MTL.FILM RESISTOR 1M J R13,R26,R30,R35,R41,R43,R47,R51,R55,R79 10
F5399128 MTL.FILM RESISTOR 1K J R34,R40,R67,R74,R88 5
F5399147 MTL.FILM RESISTOR 15K J R11,R23,R27 3
F5429386 MTL.FILM RESISTOR 150K F (1608TYPE) R19 1
F5429365 MTL.FILM RESISTOR 10K OHM F RANK (1%) R91 1
F5399140 MTL.FILM RESISTOR 10K J R2,R3,R12,R14,R20,R21,R70,R72,R76,R90,R92
11
F5399170 MTL.FILM RESISTOR 100K J R33,R39,R46,R50,R54,R58,R73,R77 8
F5399104 MTL.FILM RESISTOR 10 J R22 1
# F5399129 MTL.FILM RESISTOR 1.5K J R69 1
F5399101 MTL.FILM RESISTOR 0 J R86 1
RESISTOR
POTENTIOMETER
#F327985401 POTENTIOMETER RD912D-20-20FWH-B54-6009 VR1,VR2 2
F3279852 POTENTIOMETER RD901-20-15FW-B54-006 VR3 1
# F3229160 POTENTIOMETER RD901-20-15FP-B50K-0D 11CLICK
VR4 1
CAPACITOR
F5359800 CHIP CAPACITOR (1608 TYPE) GRM39F104Z25PT C2,C20,C24,C26,C28,C31,C47-C59,C61,C65-
C69,C74,C75,C77,C79
29
F5359704 CHIP CAPACITOR (1608 TYPE) GRM39CH220J50PT C62,C63,C72 3
F5359370 CHIP CAPACITOR (1608 TYPE) GRM39CH180J50PT C73 1
F5359817 CHIP CAPACITOR GRM39B683K50PT 0.068 K C71 1
F5359740 CHIP CAPACITOR (1608 TYPE) GRM39B222K50PT C11,C34,C38 3
F5359732 CHIP CAPACITOR (1608 TYPE) GRM39B102J50PT C78 1
01906178 MYLAR CAPACITOR ECPU1C104MA5(SUBMICRON)
C13 1
F5359725 CHIP CAPACITOR ECJ1VC1H151J 150P J C12,C35,C39,C42,C45 5
F3629680 CHEMICAL CAPACITOR 47/16V C3,C5,C27,C60 4
F3629700 CHEMICAL CAPACITOR 10U/16V (H=7MM) C14,C21,C22,C25,C33,C36,C37,C40,C43 9
13629550KM CHEMICAL CAPACITOR 100/16V C1,C4,C46,C76 4
F3629705 CHEMICAL CAPACITOR 10/16V SV P=1.5 4X5 C10,C19,C41,C44,C80,C81 6
F3629695TS CHEMICAL CAPACITOR 1/50V C23 1
INDUCTOR,COIL,FILTER
F2449210 SMD COIL SLF7032T-4R7M1R7-2(4.7UH) L2 1
F2449209 COIL SLF7032T-151MR29-2(150UH) L3 1
F5409131 EMI QT04-60 L1 1
CRYSTAL,RESONATOR
F5299114 CRYSTAL HC-49SM 5MHZ X1 1
F5299307 CRYSTAL HC-49SM 11.2896MHZ X2 1
WIRING, CABLE
G3487433 8P P=2.0MM L=100MM FLAT CABLE CN2,CN5 1
SCREWS
H5039112 WASHER M9 4
H5039205 WASHER 12.5X9.5X0.5/0.9 INTERNAL TOOTH FENI 4
H5039521 VR ACCESSORY NUT M7 4
H5029820 SCREW M3X10 THUMB SCREW 1
H5029325 SCREW 3X6 PAN HEAD TAPTITE-2 BC 5
H501941301 SCREW 3X10MM BINDING MACHINE FEBC 2
H5039401 NYLON WASHER 3X6X0.5 2
H5039510 NUT M9X12X2 FENI 4
H5039104 JACK WASHER M9.2X14X1.6 AL 1
22137709 JACK SPACER M9.6X14X1.0 1
PACKING
#G2607115 PACKING CASE 1
G2627738 INNER BOX 1
MISCELLANEOUS
2253753801 PSA CAUTION 253-538 1
H2369402 POLYCA PIPE M3X6X6 1
2215770201 PEDAL GUIDE BUSH 215-702 1
H5319102 INSULOK TIE 80M/M T-18S 2
G2167301 INSULATION SPACER 1
# G2257314 INSULATING SHEET 1

7
SYB-5
22257257 EARTH TERMINAL ET1,ET2 2
2226733300 CUSHION 226-333 1
2217710900 COIL SPRING 217-109 1
G253751603 BOTTOM CAUTION PSA FCC/CE/C-TICK/EMC GRY 1
F3419102 BATTERY CONNECTOR (006P) 1
MISCELLANEOUS
ACCESSORIES (Standard)
#G6017385 OWNER’S MANUAL ENGLISH 1
# G6017386 OWNER’S MANUAL JAPANESE 1
# G2507107 MODE SEAL 1

8
Sep.2004
TEST MODE
Required Items
Tools Required
• Oscillator
• Oscilloscope
• Noise meter
• 47k OHM short plug (#17041375)
fig.plug
• Monitor speakers
• Expression pedal (Roland EV-5)
Test Categories
1. DSP, CPU Check
2. EFFECT Volume Check
3. DIRECT Volume Check
4. FREQ Volume Check
5. RES Volume Check
6. DECAY/RATE Volume Check
7. Expression Pedal (EV-5) Insertion Check
8. Expression Pedal (EV-5) Volume Check
9. AF/AD Check
10. DAC, JACK Switch Check
11. DSP THRU Maximum Output Check
12. DSP MUTE Check
13. ANALOG BYPASS Maximum Output Check
14. ANALOG MUTE Check
15. ANALOG NOISE Check
16. MODE Volume Check
17. Battery Check
18. Noise Check
Entering Test Mode
• Turn all volume controls down completely (to minimum). Set MODE to
1.
• Hold down the pedal and connect the DC plug to the adapter jack.
• When CHECK lights up, release the pedal.
• The CHECK light goes off for approximately two seconds, then lights
again, indicating that the unit has entered test mode.
* The unit will not switch to test mode unless all volume controls are turned
completely down. Furthermore, the unit will not enter test mode if, due to faulty
volume controls or other causes, the minimum value is not detected for all
volume controls.
*The unit enters Test mode even without an expression pedal (EV-5) connected to
the EXP jack.
*If CHECK does not light, if may be due to a faulty LED. Switch the pedal on and
off in Normal mode to confirm that CHECK lights and goes off. If CHECK
flashes, refer to “1. DSP, CPU Check” in “Tests.”
*For instructions on skipping tests in order to perform only a particular test item,
refer to “Instructions for Skipping Tests.”
Exiting Test Mode
• The pedal may be pressed to exit Test mode.
* “17. Battery Check” and “18. Noise Check” are not Test mode items, but are
performed in Normal mode.
Instructions for Skipping Tests
• Follow the instructions in “Entering Test Mode” and switch to Test
mode.
• When the pedal is released, the unit automatically runs “1. DSP, CPU
Check”; if no error is detected, CHECK lights up.
• Use the MODE control to select the desired test category.
MODE 1: EFFECT, DIRECT, FREQ, RES, DECAY/RATE Volume Check
MODE 2: Expression Pedal (EV-5) Insertion Check
MODE 3: Expression Pedal (EV-5) Volume Check
MODE 4: AF/AD Check
MODE 5: DAC, JACK Switch Check
MODE 6: DSP THRU Maximum Output Check
MODE 7: DSP MUTE Check
MODE 8: ANALOG BYPASS Maximum Output Check
MODE 9: ANALOG MUTE Check
MODE 10: ANALOG NOISE Check
MODE 11: MODE Volume Check
* The volume checks can be run only in the following sequence: EFFECT-
>DIRECT->FREQ->RES->DECAY/RATE.
* To run “17. Battery Check” and “18. Noise Check,” turn on the power without
entering Test mode items, and instead perform these in Normal mode.
Precautionary Note
Be sure to confirm all test categories following repair of adjustments to the
instrument.
Tests
1. DSP, CPU Check
• Refer to “Entering Test Mode” and switch to Test mode.
•Acheck of the DSP and CPU is performed automatically while the
CHECK light is off. If no problem is detected, CHECK lights up and the
unit enters Test mode; CHECK flashes if an error has occurred.
• Connect the oscillator to INPUT, input a rectangular wave (200 Hz, 100
mVp-p), and check the waveform output with the oscilloscope from both
OUTPUT A(MONO) and OUTPUT B. Confirm that the waveform output
is the same 200 Hz, 100 mVp-p waveform shown in the figure (DSP
THRU).
fig.test-DSPthru.eps_40
50mV/DIV, 1mS/DIV
• If CHECK lights up, the process automatically advances to the next step.
*If CHECK flashes, it may be due to a fault surrounding the DSP or CPU, faulty
soldering, or other such problem. Disconnect the DC plug from the adapter jack
and turn off the power.
2. EFFECT Volume Check
• Rotate the knob in the clockwise direction from minimum to center, then
to maximum; CHECK should change from lit to off to lit.
• When the maximum is detected, CHECK lights up, and then the process
advances to the DIRECT Volume Check.
3. DIRECT Volume Check
• Rotate the knob in the clockwise direction from minimum to center, then
to maximum; CHECK should change from lit to off to lit.
• When the maximum is detected, CHECK lights up, and then the process

9
SYB-5
advances to the FREQ Volume Check.
*The DIRECT Volume Check and EFFECT Volume maximum value are detected
simultaneously. The DIRECT Volume Check is not run unless the EFFECT
Volume maximum is detected.
4. FREQ Volume Check
• Rotate the knob in the clockwise direction from minimum to center, then
to maximum; CHECK should change from lit to off to lit.
• When the maximum is detected, CHECK lights up, and then the process
advances to the RES Volume Check.
* The FREQ Volume Check and DIRECT Volume maximum value are detected
simultaneously. The FREQ Volume Check is not run unless the DIRECT
Volume maximum is detected.
5. RES Volume Check
• Rotate the knob in the clockwise direction from minimum to center, then
to maximum; CHECK should change from lit to off to lit.
• When the maximum is detected, CHECK lights up, and then the process
advances to the DECAY/RATE Volume Check.
* The RES Volume Check and FREQ Volume maximum value are detected
simultaneously. The RES Volume Check is not run unless the FREQ Volume
maximum is detected.
6. DECAY/RATE Volume Check
• Rotate the knob in the clockwise direction from minimum to center, then
to maximum; CHECK should change from lit to off to lit.
* The DECAY/RATE Volume Check and RES Volume maximum value are
detected simultaneously. The DECAY/RATE Volume Check is not run unless
the RES Volume maximum is detected.
7. Expression Pedal (EV-5) Insertion Check
• Confirm that the MODE control is set to 2.
• With nothing connected to the EXP jack, confirm that CHECK is unlit.
• Connect the EV-5 to the EXP jack. Confirm that CHECK lights up.
8. Expression Pedal (EV-5) Volume Check
• Confirm that the MODE control is set to 3.
• Set the EV-5 pedal so that it is fully raised (minimum setting). Confirm
that CHECK lights up.
•Depress the EV-5 pedal so that it is completely pressed down (maximum
setting). Confirm that CHECK lights up. CHECK should be off with the
pedal between the minimum and maximum positions.
• Unplug the cable from the EXP jack to disconnect the EV-5. Confirm that
CHECK lights up.
* Perform this check with the MINIMUM VOLUME on the side of the EV-5 set
to 0.
9. AF/AD Check
• Confirm that the MODE control is set to 4. CHECK goes out.
• Use the oscillator to input a sine wave at 200 Hz, -25 dBm (FLAT) to
INPUT.
• Check the waveform output with the oscilloscope from both OUTPUT
A(MONO) and OUTPUT B. Confirm that the waveform is the same as
that shown in the figure and that there is no distortion.
fig.test-AFAD.eps_40
50mV/DIV, 1mS/DIV
• Check the waveform output with the noise meter from both OUTPUT
A(MONO) and OUTPUT B. Confirm that each waveform output is and
between -28.5 dBm and -25.5 dBm(FLAT).
10. DAC, JACK Switch Check
• Confirm that the MODE control is set to 5. CHECK lights up.
• Connect plugs to both the OUTPUT A(MONO) and OUTPUT B jacks,
and check the waveform output from both jacks with the oscilloscope.
Confirm that the waveform output from each is a 400-Hz rectangular
wave, with the waveform the same as that shown in the figure.
fig.test-DA400Hz.eps_40
50mV/DIV, 1mS/DIV
• Disconnect the plug connected to the OUTPUT B jack.
•Confirm that the waveform output from OUTPUT A(MONO) is a 200-Hz
rectangular wave, and that the waveform is the same as that shown in
the figure.
fig.test-DA200Hz.eps_40
50mV/DIV, 1mS/DIV
• Connect the plug to the OUTPUT B jack.
• Confirm that the waveform output from both OUTPUT A(MONO) and
OUTPUT B is a 400-Hz rectangular wave, with the waveform the same as
that shown in the figure.
fig.test-DA400Hz.eps_40
50mV/DIV, 1mS/DIV
11. DSP THRU MAXIMUM Output Check
• Confirm that the MODE control is set to 6. CHECK goes out.
• Use the oscillator to input a sine wave at 200 Hz, +5 dBm (FLAT) to
INPUT.
• Check the waveform output from both OUTPUT A(MONO) and
OUTPUT B with the oscilloscope. Confirm that the waveform is the same
as that shown in the figure and that there is no distortion.

10
Sep.2004
fig.test-MAX.eps_40
1V/DIV, 1mS/DIV
• Check the output level from both OUTPUT A(MONO) and OUTPUT B
with the noise meter. Confirm that each is between +3 dBm and +6
dBm(FLAT).
12. DSP MUTE Check
• Confirm that the MODE control is set to 7. CHECK lights up.
• Use the oscillator to input a sine wave at 200 Hz, +5 dBm (FLAT) to
INPUT.
• Check the waveform output from both OUTPUT A(MONO) and
OUTPUT B with the oscilloscope. Confirm that the waveform is the same
as that shown in the figure.
fig.test-MUTE.eps_40
1V/DIV, 1mS/DIV
• Check the output level from both OUTPUT A(MONO) and OUTPUT B
with the noise meter. Confirm that each waveform output is at or below -
71 dBm(FLAT).
13. ANALOG BYPASS Maximum Output Check
• Confirm that the MODE control is set to 8. CHECK goes out.
• Use the oscillator to input a sine wave at 200 Hz, +5 dBm (FLAT) to
INPUT.
• Check the waveform output from both OUTPUT A(MONO) and
OUTPUT B with the oscilloscope. Confirm that the waveform is the same
as that shown in the figure and that there is no distortion.
fig.test-MAX.eps_40
1V/DIV, 1mS/DIV
• Check the output level from both OUTPUT A(MONO) and OUTPUT B
with the noise meter. Confirm that each is between +3 dBm and +6
dBm(FLAT).
14. ANALOG MUTE Check
• Confirm that the MODE control is set to 9. CHECK lights up.
• Use the oscillator to input a sine wave at 200 Hz, +5 dBm (FLAT) to
INPUT.
• Check the waveform output from both OUTPUT A(MONO) and
OUTPUT B with the oscilloscope. Confirm that the waveform is the same
as that shown in the figure and that there is no distortion.
fig.test-MUTE.eps_40
1V/DIV, 1mS/DIV
• Check the output level from both OUTPUT A(MONO) and OUTPUT B
with the noise meter. Confirm that each waveform output is at or below
-74 dBm(FLAT).
15. ANALOG NOISE Check
• Confirm that the MODE control is set to 10. CHECK goes out.
• Connect the 47 k
Ω short plug to the INPUT jack.
• Check the output level from both OUTPUT A(MONO) and OUTPUT B
with the noise meter. Confirm that output from each is at or below -98
dBm(IHF-A).
16. MODE Volume Check
• Confirm that the MODE control is set to 11. CHECK lights up.
• Confirm that the EV-5 is not connected to the EXP jack.
Slowly rotate the MODE control as shown in the figure, one click at a time, and
confirm that CHECK lights up and goes off as described below.
fig.test-ClickVR.eps_30
MODE 11: ON
MODE 10: OFF
MODE 9: ON
MODE 8: OFF
MODE 7: ON
MODE 6: OFF
MODE 5: ON
MODE 4: OFF
MODE 3: ON
MODE 2: OFF
MODE 1: ON
* If checking the MODE volume only, without performing all of the tests, rotate
the control in the reverse sequence of that described above (i.e., MODE 1 ->
MODE 11) and confirm that CHECK behaves as described.
17. Battery Check
•Press the pedal and confirm that CHECK lights up (so that the effects are
switched on).
• Confirm that a plug is connected to INPUT.
• Disconnect the DC plug from the adapter jack.
• Confirm that CHECK is lit.
* If CHECK is dimmer than when used with the adapter, it indicates that the
batteries are going dead.

11
SYB-5
18. Noise Check
• Connect the DC plug to the adapter jack.
* As this check places a drain on the batteries, use the adapter when performing
this check.
• Confirm that CHECK is lit and that the effects are on.
• Set the volume controls as shown in the figure.
fig.test-NOISE.eps_30
• Connect the 47 k
Ωshort plug to the INPUT jack.
•Connect plugs to both the OUTPUT A(MONO) and OUTPUT B jacks and
check the residual noise from both jacks with the noise meter. Confirm
that both are at or below -92 dBm(IHF-A).
• Connect the monitor speakers to the OUTPUT A(MONO) and OUTPUT
B jacks.
• Press the pedal to switch the effects on and off, and confirm that no
switching noise is produced.
• Press the pedal so that the effects are on, and rotate each of the knobs,
confirming that no abnormal sounds are produced.
• Set the EFFECT volume to MIN and the DIRECT volume to MAX so that
only the direct sound is output.
• Shock-test the unit by dropping it from a height of 10 cm twice. Confirm
that no unusual noise is output from OUTPUT B.
• Disconnect the plug form the OUTPUT B jack.
• Shock-test the unit by dropping it from a height of 10 cm twice. Confirm
that no unusual noise is output from OUTPUT A(MONO).
• Switch the pedal between ON and OFF, and confirm that no switching
noise is produced.

12
Sep.2004
CIRCUIT BOARD
fig.board-1 fig.board-2

13
SYB-5

14 15
Sep.2004 SYB-5
CIRCUIT DIAGRAM
fig.circuit.eps
SW BOARD
(PCB F2927027 5/6)
LED BOARD
A9V
(PCB 2291749600)
RED
006P
RESET
WHT
GLY
CHECK
LED-RED
LED-GRN
RED
VIO
GRN
ORG
SYB-5 MAIN BOARD ASSY
75E193M000
DC/DC
Converter
A8V
A4V
A4V
A8V
A8V
A4V
A9V
AC
ADAPTOR
A9V (PCB F2927027 2/6)
A4V
A4V
IN-A
IN-B
OUT-A
OUT-B
EFX-A DIR-B
DIR-A
Serial IOSerial IO
GND
SO
SCK
RESET
VDD
Vpp
SI
N.I. U
EFX-B EFX-A DIR-B DIR-A
EFX-B
VR3-B/EXP-2
VR1-B
EXP1
D.TIME
F.BACK
E.LEVEL
MODE
IN-B_SW
OUT-A_SW
CPU
DIR-A
OUT-B_SW
LED-GRN
EFX-B DIR-B
IN-A_SW
EFX-A
LED-RED
VR2-B
LED BOARD
(PCB F2927027 6/6)
CHECK
(RED/GRN)
RED
GRN
DSP (MR3)
AD/DA
HC49SM
(PCB F2927027 4/6)
JACK2 BOARD
ORG
GRN
BRN
BLK
INPUT
BLK
DIRECT
RES
DECAY,RATE
MODE
A4V
A4V
A4V
A4V
OUTPUT B
YEL
JACK1 BOARD
(PCB F2927027 3/6)
BLU
(PCB F2927027 00 1/6)
OUTPUT A (MONO)
(DIRECT OUT)
EXP
EFFECT
FREQ
VR BOARD
HC49SM
MIDI
SO
SI
SCK
Vpp
CA3
CA4
BCLK
MCLK
BCLK
AD
MCLK
LRCK
DA
LRCK
DA
AD CA2
CD5
CD3
CD3
CD2
CD4
CA1
CD6
CA1
CA0
CD1
CD5
CD4
CD1
CD2
CD0
CA0
CD7
CD0
CD7
CA2
CD6
CA3
CA4
INT0
INT1
INT1
INT0
RD
RD
WR
WR
D
A
+
D3.3
+
D
A
+
D3.3
D
+
D3.3
DA
D
+
D3.3
+
D3.3
D
+
A
A
+
A
A
+
+
+
+
+
+
+
A
A
+
A
+
+
A
+
+
+
+
DA DA
++
DA
+
D3.3
D
D
+
D3.3
+
D
+
D3.3
D
+
D3.3
DA
+
+
D3.3 + D3.3 +
D3.3 +
D3.3
D
+
D3.3
D
+
D3.3
D
D
+
D3.3
+
D3.3
DD
D
D
+
D3.3
D
D
D
+
D3.3
D
A
+
D3.3
D A
A
D
+
D3.3
D
D
+
D3.3
D
+
D3.3
+
D3.3
D
+
D3.3
D
D
+
D3.3
+
D3.3
D
D
+
D3.3
D
+
D3.3
+
+
A
+
+
+
+
D3.3 + D3.3
+
D3.3
+
D3.3
+
D3.3
D
+
D3.3
D
D
D
D
D
D
D
R74
1k SW1
JM-0404
1 2
L3
SLF7032T-151MR37-2 150uH
R38
22k
Q12
2SC4116GR
1
23
Q14
N.I.U
1
32
R66
N.I.U
R65
22k
R34
1k
R33
100k
R73
100k
ET1
EARTH_TERMINAL (RV-2)
ET2
EARTH_TERMINAL (RV-2)
1
14
LED1
LED2
9
10
15
16
IC9
S-80130ALMC-JAP-T2
DS
1VDD 5
VSS
2
OUT 4 NC
3
3
R61
22k
R62
22k
R59
N.I.U
IC6
S-8520E33MC-BJS-T2
ON/OFF
1VIN
5
VSS
2
EXT 4
VOUT 3
L2
SLF7032T-4R7M1R7-2 4.7uH
R4
N.I.U C7 N.I.U
R6
N.I.U
Q2
N.I.U
3
1 2
DA1
N.I.U 21
3
R5
N.I.U
R37
22k R40
1k
C14
10/16
R39
100k
11
C41
10/16
R35
1M
Q6
2SK879Y
3
12
C44
10/16
R41
1M
R42
22k
Q7
2SK879Y
3
12
R30
1M
R84
N.I.U
2
C37
10/16
C38
0.0022
R27
15k
R23
15k
C34
0.0022
R25 56k
C33
10/16
R24
22k
C35 150p
C12
150p
R9
56k
R11
15k
R10
22k
C11
0.0022
R12
10k C13 0.1(S)
Q3
2SK880GR
3
1 2
DA2
N.I.U 21
3
R13
1M
CN1-1
R67
1k
R68
N.I.U
R1
2.2k
C2
0.1
C4
100/16
Q1
2SC4116GR
1
23
L1
QT04-60
1
2
4
3
JK1
HEC2392-01-150
2
1
3
4
5
JK5
HTJ-064-14D
1
2
3
C45
150p
+
-
IC3C
M5218AFP
84
Q13
2SA1586GR
1
32
Q4
2SK879Y
3
12
C43
10/16
R32
22k
C42
150p
R36
22k
R31
22k
Q5
2SK879Y
3
12
R26
1M
C36
10/16
D5
1SS352
D6
1SS352
D7
1SS352
R29 56k
R28
22k
C40
10/16
C39 150p
C16
N.I.U
R19
150kF
+
-
IC2A
NJM2100M
2
31
C18
N.I.U
R17
N.I.U
C17
N.I.U
R52
56k
R51
1M
R53
56k
C49
0.1
D4
1SS352
R56
56k
R55
1M Q9
2SC4116GR
1
2 3
C48
0.1
Q11
2SC4116GR
1
2 3
R48
56k
R47
1M
R49
56k
C50
0.1
C21
10/16
C22
10/16
R60
N.I.U
+
-
IC2C
NJM2100M
84
C20
0.1
R82
N.I.U
CN1-2
+
-
IC4C
M5218AFP
84
CN3
A2001WV2-7P
1
1
2
23
3
4
4
5
5
6
6
7
7
CN4
N.I.U
1
1
2
2
3
3
R46
100k R50 100k R54
100k
R58
100k
Q15
2SJ190
1
23
R77
100k
R57
56k
R45
56k
C60 47/16
C62
22p
C61
0.1
C63
22p
X1
5MHz
Q8
2SC4116GR
1
2 3
+
-
IC2B
NJM2100M
6
57
C6
N.I.U
R63
56k
R2
10k
D1
SS14
R85
N.I.U
C8
N.I.U
R75
N.I.U
C9
N.I.U
R14
10k
C10
10/16
+
-
IC4B
M5218AFP
6
57
+
-
IC4A
M5218AFP
2
31
R18
N.I.U
R91
10kF
CN1-3
1
LED1
L-34HDSL
1 2
LED1
N.I.U
1 2
3
CN6-1
1
CN6-3
1
CN6-2
1
C68
0.1 C66 0.1
C74
0.1
C73
18p
C72
22p
C64
N.I.U
R88
1k
R79
1M
C65
0.1
C78
0.001
C67
0.1
C69
0.1
R89 27k
R80
N.I.U
C71 0.068
R78
47
C28
0.1
C23
1/50 C24 0.1
C25
10/16
R22
10
C27
47/16
C26
0.1
IC8
AK4552VT
RIN
1
LIN
2
VSS
3VA 4
VD 5
DEMO
6
DEM1
7
SDTO
8
SDTI
9LRCK
10
MCLK
11
BCLK
12
PDN
13
VCOM 14
LOUT 15
ROUT 16
C31
0.1
X2
11.2896MHz
IC7
TC220CCA0AF-B01(MR3)
OSC 1
VSS
2
OSCSEL 3
VSS
4
XTO 5
XTI 6
VDD 7
DIVS0
8DIVS1
9
PLLBP
10
VSS
11 VSS 12
TESTP
13
VDD 14
VDD
15 PLLVAA
16
PLLRO
17
PLLLP
18
PLLAGS
19
PLLAGD
20 VSS
21
VSS
22
VDD 23 VDD 24
RST 25
VSS
26
CD7 27
CD6 28
CD5 29
CD4 30
VSS
31
TESTS
32
VDD 33
CD3 34
CD2 35
CD1 36
CD0 37
VDD 38
DRQ 39
INT0 40
INT1 41
DRST 42
VSS
43
CA4 44
CA3 45
CA2 46
CA1 47
CA0 48
VDD 49
RD 50
CS 51
VSS
52
WR 53
VSS
54
DIV 55
VDD 56
DA0
57
AD0
58
VDD 59
BCK
60
VSS
61
LRCK0
62
LRCK1
63
VDD 64
MCK
65
VSS
66
DA1
67
AD1
68
DA2
69
AD2
70
VSS
71
CTYPE 72
VDD 73
DA3
74 AD3
75
SYI 76
TESTB
77 TESTT
78
VDD 79
VSS
80
R20
10k
R83
N.I.U
R81
N.I.U
VR1a
RD912D-20-20FWH-B54-6009(OUTER)
1
2
3
VR2a
RD912D-20-20FWH-B54-6009(OUTER)
1
2
3
CN5-4
VR3a
RD901-20-15FW-B54-006
1
2
3
CN5-8
VR4
RD901-20-15FP-B50K-0D
1
2
3
CN5-5
CN5-6
VR2b
RD912D-20-20FWH-B54-6009(INNER)
1
2
3
VR3b
N.I.U
1
2
3
CN5-2
CN5-3
CN5-1
CN2-8
CN2-6
C56
0.1
CN2-5
CN2-7
C57
0.1
CN2-4
C55
0.1
C58
0.1
CN2-3
R71
220k
R72
10k C51 0.1
R69
1.5k
R70
10k
CN2-2
CN2-1
R7
22k
R8
22k
+
-
IC1B
M5218AFP
6
57
C80
10/16
R16
22k
C81
10/16 R15 22k
+
-
IC1A
M5218AFP
2
31
+
-
IC1C
M5218AFP
84
C79
0.1
R90
10k R92 10k
+
-
IC3B
M5218AFP
6
57
+
-
IC3A
M5218AFP
2
31
IC5
uPD780034AGK-B20-9ET SYB-5 V1.00
P50/A8
1P51/A9
2P52/A10
3P53/A11
4P54/A12
5P55/A13
6P56/A14
7P57/A15
8
VSS0
9VDD0 10
P30 11
P31 12
P32/SDA0 13
P33/SCL0 14
P34/SI31 15
P35/SO31 16
P36/SCK31 17
P20/SI30 18
P21/SO30 19
P22/SCK30 20
P23/RxD0 21
P24/TxD0 22
P25/ASCK0 23
VDD1 24
AVSS
25
P17/AN17 26
P16/AN16 27
P15/AN15 28
P14/AN14 29
P13/AN13 30
P12/AN12 31
P11/AN11 32
P10/AN10 33
AVREF 34
AVDD 35
RESET
36
XT2
37 XT1 38
IC 39
X2 40
X1 41
VSS1
42
P00/INTP0
43 P01/INTP1
44 P02/INTP2
45 P03/INTP3/ADTRG
46 P70/TI00/TO0
47 P71/TI01
48 P72/TI50/TO50
49 P73/TI51/TO51
50 P74/PCL
51 P75/BUZ
52
P64/RD
53 P65/WR
54 P66/WAIT
55 P67/ASTB
56
P40/AD0
57 P41/AD1
58 P42/AD2
59 P43/AD3
60 P44/AD4
61 P45/AD5
62 P46/AD6
63 P47/AD7
64
Q10
2SC4116GR
1
2 3
C47
0.1
R44
56k
R43
1M
12
JK2
HTJ-064-12D
1
2
3
18
17
6
1
5
1
C46
100/16
BT1
GP1604A
12
JK4
N.I.U
9
4
8
7
6
3
2
JK3
N.I.U
9
4
8
7
6
3
2
3
1
4
1
2
1
5
1
6
1
1
1
JK6
HTJ-064-13D
1
2
3
4
1
JK7
HTJ-064-14D
1
2
3
7
8
13
1
CN2-9
1
CN5-9
1
R100
4.7
CN5-7
C52
0.1
C77
0.1
D3
SS14
VR1b
RD912D-20-20FWH-B54-6009(INNER)
1
2
3
C5
47/16
R21
10k
C54
0.1
C59
0.1
D2
GS1G R3 10k
C3
47/16
C19
10/16
C1
100/16
R76
10k
R64
33k
C75
0.1
C76
100/16
C53
0.1
R86
0