Roland GC-408, GC-408S Service Notes

SPECIFICATIONS

GC-408:Guitar Amplifier
Rated Power Output

60 W/8 Ω
80 W/4 Ω (When the speaker box GC-408 is connected.)

Nominal Input Level ( @ 1 kHz )

CLEAN Channel INPUT HIGH -36 dBm / 680k Ω

INPUT LOW -26 dBm / 100k Ω

LEAD Channel INPUT HIGH -65 dBm / 680k Ω

INPUT LOW -55 dBm / 100k Ω
0 dBm = 0.775 Vrms

Speakers

20 cm ( 8 inches) x 4

Controls

CHANNEL SELECT Switch
CLEAN Channel BRIGHT Switch

VOLUME Knob

LEAD Channel BOOST Switch

PRE VOLUME Knob
POST VOLUME Knob

EQUALIZER BASS Knob

MIDDLE Knob
TREBLE Knob

MASTER REVERB Knob

PRESENCE Knob
LOW CUT Switch
SQUEEZE LEVEL Switch
POWER SQUEEZER Switch
POWER Switch (w/Indicator)

Indicator

CLEAN Channel
LEAD Channel

Connectors

INPUT Jack(HIGH,LOW)
FOOT SWITCH Jack(CHANNEL, SELECT, BOOST, REVERB)
EFFECT SEND Jack
EFFECT RETURN Jack
EXTERNAL SP OUT Jack

Power Supply

100V(50Hz/60Hz),117V,230V or 240V

Power Consumption

60W(AC 100V) / 80W(117V/230V/240V)

Dimensions

561 (W)x 316 (D)x 576 (H) mm
22-1/8 (W) x 12-1/2 (D) x 22-11/16 (H) inches

Weight

20.6 kg / 45 lbs 7 oz

Accessories

Owner's Manual English (SS000103)
Owner's Manual Japanese (SS000104)

Options

Footswitch FS-5L(BOSS)
External speaker box GC-408S

GC-408S:Speaker Box
Speakers

20 cm ( 8 inches) x 4

Rated Input

80 W

Impedance

8 Ω

Connector

INPUT Jack

Dimensions

561 (W)x 335 (D)x 528 (H) mm
22-1/8 (W) x 13-3/16 (D) x 20-13/16 (H) inches

Weight

16.6 kg / 36 lbs 10 oz

Accessories

Owner's Manual English (SS000105)
Owner's Manual Japanese (SS000106)
Connection Cable (SS000155)

(EXT S/P CABLE)

GC-408/GC-408S

Dec, 1997

GC-408/GC-408S

TABLE OF CONTENTS Page

SPECIFICATIONS•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1
PANEL LAYOUT•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••2
EXPLODED VIEW
GC-408 CABINET•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••3
GC-408S CABINET •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••4
CHASSIS••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5
NOTICE •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6
WIRING DIAGRAM•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••7~10
PARTS LIST•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••11,12
CIRCUIT BOARD ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••13
CIRCUIT DIAGRAM•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••14

Printed in Japan (CR) AD00 1

17059906

Issued by RJA

Copyright c1997 by ROLAND CORPORATION

All rights reserved. No part of this publication may be reproduced in any form without the written permission of
ROLAND CORPORATION.

GC-408

:

GUITAR amplifier

gc-408s

:

speaker box

2

LOCATION OF CONTROLS

Dec, 1997

GC-408/GC-408S

[PARTS]

No. Part Cord Part Name

q SS000115 PHONE JACK MONO 12.5M/M

SS000055 NUT BK ABS JACK

w SS000065 BUTTON PNBB-18

SS000020 PUSH SWITCH JDPA-21SA

e~i SS000066 KNOB CNBB-09
e SS000011 POTENTIOMETER A50k V/R 16F
r SS000013 POTENTIOMETER B250k V/R 16F
t SS000012 POTENTIOMETER B20k V/R 16F
y SS000126 POTENTIOMETER A500k V/R 16F
u SS000127 POTENTIOMETER B10k V/R 16F
i SS000015 POTENTIOMETER C10k V/R 16F
o SS000132 POWER SWITCH H8660VB
!0 SS000021 AC SWITCH H8653VB
!1 SS000123 LED KLG124
!2 SS000122 LED KLR124
!3 SS000141 PANEL (FRONT/REAR)

GC-408 [FRONT VIEW]

GC-408 [REAR VIEW]

3

GC-408 CABINET EXPLODED VIEW

[PARTS]

No. Part Cord Part Name

q SS000139 CABINET ASSY
w SS000070 CORNER CSN-03
e SS000160 RUBBER FOOT RF-02
r SS000076 HANDLE HDBK-02
t SS000077 HANDLE BRACKET HBNI-02
y 17055028 REVERB UNIT 8DB2C1E
u SS000135 SPEAKER GC-408/S
i SS000167 ANGLE BRACKET
o SS000050 TAPPING SCREW NI TH1 3.5x12
!0 SS000145 TAPPING SCREW BK TH1 3.5x 18
!1 SS000148 MACHINE SCREW BK OH 4x25
!2 SS000054 WASHER BK NAVEL 4ø
!3 SS000051 MACHINE SCREW NI OH M4x32
!4 SS000047 TAPPING SCREW BK TH1 3.5x15
!5 SS000147 MACHINE SCREW BK TH M4x20
!6 SS000171 TAPPING SCREW BK FH1 2.6x10
!7 SS000049 TAPPING SCREW BK OH1 3.5x45
!8 SS000152 TAPPING SCREW NI FH1 3.5x15
!9 SS000146 TAPPING SCREW BK TH1 3.5x35
@0 SS000156 RUBBER SHEET
@1 SS000166 VENT COVER
@2 SS000150 TAPPING SCREW BK OH1 3.5x15
@3 SS000110 BAFFLE BOARD ASSY
@4 SS000114 BACK BOARD ASSY

GC-408/GC-408S

Dec, 1997

q SS000139 CABINET ASSY
Replacement CABINET ASSY includes the following parts.

e SS000160 RUBBER FOOT RF-02
w SS000075 CORNER CSN-03
r SS000076 HANDLE HDBK-02
t SS000077 HANDLE BRAKET HBNI-02
@0 SS000156 RUBBER SHEET

@4 SS000114 BACK BOARD ASSY

Replacement BACK BOARD ASSY includes the following parts.

@1 SS000166 VENT COVER For BACK BOARD

@3 SS000110 BAFFLE BOARD ASSY

Replacement BAFFLE BOARD ASSY includes the following parts.

!6 SS000161 LOGO ROLAND(LARGE)
i SS000167 ANGLE BRACKET

4

GC-408S CABINET EXPLODED VIEW

[PARTS]

No. Part Cord Part Name

q SS000140 CABINET ASSY
w SS000070 CORNER CSN-03
e SS000160 RUBBER FOOT RF-02
r SS000076 HANDLE HDBK-02
t SS000077 HANDLE BRACKET HBNI-02
y ********
u SS000135 SPEAKER GC-408/S
i SS000167 ANGLE BRACKET
o SS000050 TAPPING SCREW NI TH1 3.5x12
!0 SS000145 TAPPING SCREW BK TH1 3.5x 18
!1 ********
!2 ********
!3 SS000051 MACHINE SCREW NI OH M4x32
!4 ********
!5 SS000147 MACHINE SCREW BK TH M4x20
!6 SS000171 TAPPING SCREW BK FH1 2.6x10
!7 SS000049 TAPPING SCREW BK OH1 3.5x45
!8 SS000152 TAPPING SCREW NI FH1 3.5x15
!9 SS000146 TAPPING SCREW BK TH1 3.5x35
@0 SS000156 RUBBER SHEET
@1 ********
@2 ********
@3 SS000133 PCB ASSY
@4 SS000055 NUT BK ABS JACK
@5 SS000168 BLACK PLATE
@6 SS000144 TAPPING SCREW BK TH1 3.5x10
@7 SS000111 BAFFLE BOARD ASSY GC-408S
@8 SS000109 BACK BOARD ASSY GC-408S

Dec, 1997

GC-408/GC-408S

q SS000140 CABINET ASSY GC-408S
Replacement CABINET ASSY includes the following parts.

e SS000160 RUBBER FOOT RF-02
w SS000070 CORNER CSN-03
r SS000076 HANDLE HDBK-02
t SS000077 HANDLE BRAKET HBNI-02
@0 SS000156 RUBBER SHEET

@8 SS000109 BACK BOARD ASSY GC-408S

Replacement BACK BOARD ASSY includes the following parts.

@5 SS000168 BACK PLATE For BACK BOARD

@7 SS000111 BAFFLE BOARD ASSY GC-408S

Replacement BAFFLE BOARD ASSY includes the following parts.

!6 SS000161 LOGO ROLAND(LARGE)
i SS000167 ANGLE BRACKET

5

CHASSIS EXPLODED VIEW

[PARTS]

No. Part Cord Part Name

q SS000112 CHASSIS (FOR 100V/230V/230VE/240V VERSION)

SS000113 CHASSIS (FOR 117V VERSION)

w SS000141 PANEL(Front / Rear)
e SS000128 POWER TRANSFORMER GC-408J 100V

SS000129 POWER TRANSFORMER GC-408U 117V
SS000130 POWER TRANSFORMER GC-408ES 230V
SS000131 POWER TRANSFORMER GC-408S 240V

r SS000138 AC CORD 100V PHP209 VCTFK

SS000040 AC CORD 117V KKP30A/SJT
SS000035 AC CORD 230VD KKP4819R
SS000036 AC CORD 230VE SRS.III
SS000022 AC CORD 240V KKP550

t SS000162 HEAT SINK HS-15
y SS000133 PCB ASSY
u SS000021 AC SWITCH H8653VB
i SS000132 POWER SWITCH H8660VB
o SS000066 KNOB CNBB-09
!0 SS000065 BUTTON PNBB-18
!1 SS000055 NUT BK ABS JACK
!2 SS000060 NUT NA 6N-M7
!3 SS000058 WASHER NA PLATE 7ø
!4 SS000158 SUPPORT DABS 16R
!5 SS000053 MACHINE SCREW NA PHSW M4x10
!6 SS000059 NUT NA FURANCHI M4

GC-408/GC-408S

Dec, 1997

6

NOTICE

Dec, 1997

GC-408/GC-408S

Some basic tips to keep in mind when you replace a component

1. Caution labels
When you replace the chassis, place caution labels to the
replacement chassis.
Please refere to the following diagrams.

2. Reverb unit
Reverb unit is placed to cabinet directly by wood screw.
When you place a reverb unit to the new replacement cabinet,
lock it in specified position.
Please refere to the following diagrams.

Switch Caution Sticker
(P/No.40017089)
(117V only)

Fuse Caution Sticker
(P/No.40124690)
(117V only)

Earth Seal
(P/No.40013812)
(117V/230VD/230VE/240V)

[SIDE VIEW

7

WIRING DIAGRAM

GC-408/GC-408S

Dec, 1997

IMPORTANT NOTE ! (For 117V version)

When you replace the AC Switch for 117V version, basic safety
precations should always be followed including the following.
(Refer to fig 1.)

Switch Cover

Secured by nylon tie tightly

Glue : 1603HFR (Flame Class: 94V-0) HAN NONG POLYMER CO.LTD.

P/No. SS000107

AC Switch

NOTE : Mounting of AC Switch
The switch cover must be secured to the ac switch by nylon tie.
The gap between Metal Chassis and Switch Cover must be filled up with glue with flammability of 94V-0.

Fig.1

8

GC-408/GC-408S

Dec, 1997

WIRING DIAGRAM
408 SPEAKER

INOUT

9

GC-408/GC-408S

Dec, 1997

WIRING DIAGRAM
408S SPEAKER

10

GC-408/GC-408S

Dec, 1997

NOTE:The parts marked have safety-related characteristics.
Use only listed parts for replacement.

q ******** TRANSFORMER SEC.LEAD WIRE.(RED)
w ******** TRANSFORMER SEC.LEAD WIRE.(BLK)
e ******** TRANSFORMER SEC.LEAD WIRE.(RED)
r ******** TRANSFORMER PRI.LEAD WIRE.(WHT)
t ******** TRANSFORMER PRI.LEAD WIRE.(BLK)
y SS000177 POWER LINE WIRE (BLK)
u SS000178 POWER LINE WIRE 150MM (WHT)
i SS000177 POWER LINE WIRE (BLK)
o SS000180 POWER LINE WIRE 100MM (WHT)

AC CORD

100V 117V 230VE/240VD

!0

WHITE WHITE BLUE

!1

BLACK BLACK BROWN

!2

none GREEN YLW/GRN

!3 SS000181 EXTERNAL SPEAKER WIRE (BLK)
!4 SS000182 EXTERNAL SPEAKER WIRE (WHT)
!5 SS000183 SPEAKER WIRE (BLK)
!6 SS000198 SPEAKER WIRE (WHT)
!7 SS000186 GND CABLE (BLK)
!8 SS000080 REVERB CABLE
!9 SS000186 GND CABLE (BLK)
@0 SS000187 LINE GND CABLE (YLW/GLY)230/240V ONLY
@1 SS000196 SPEAKER SYSTEM WIRE (WHT)
@2 SS000197 SPEAKER SYSTEM WIRE (BLK)
@3 SS000155 EXT S/P CABLE L=300M/M(BLK)

a SS000188 SEND/RETURN WIRE (WHT/BRU/YLW)
b SS000189 REVERB WIRE (YLW/BLU)
c SS000190 BOOST WIRE (YLW/BLU)
d SS000191 C/H SELECT WIRE (WHT/BLU)
e SS000192 POWER TR WIRE (RED/WHT/BLU)
f SS000192 POWER TR WIRE (RED/WHT/BLU)
g SS000163 POWER SQUEEZER WIRE 2pin
h SS000164 POWER SQUEEZER WIRE 3pin

WIRING DIAGRAM PARTS LISTWIRING DIAGRAM

!

!

!

!

!

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GC-408 PARTS LIST

SAFETY PRECAUTIONS:*2
The parts marked have
safety-related characteristics.
Use only listed parts for
replacement.

!

CONSIDERATIONS ON PARTS ORDERING

When ordering any parts listed in the parts list, please specify the following items in the order sheet.
QTY PART NUMBER DESCRIPTION MODEL NUMBER
Ex. 10 22575241 Sharp Key C-20/50
15 2247017300 Knob (orange) DAC-15D
Failure to completely fill the above items with correct number and description will result in delayed or
even undelivered replacement.

RESISTOR

# SS000125 RESISTOR RS TYPE 220ohm/2W 26222000506 R13,89
# SS000124 CEM RES. RWC5 TYPE 0.33ohm/5W 26030000806 R55-57

POTENTIOMETER

# SS000011 POT.A50K V/R 16F 27311221504 VR2
# SS000126 POT.A500K V/R 16F 27311221505 VR5
# SS000127 POT.B10K V/R 16F 27311222104 VR6

SS000012 POT.B20K V/R 16F 27311222204 VR3,4
SS000013 POT.B250K V/R 16F 27311222255 VR1,7
SS000015 POT.C10K V/R 16F 27311223104 VR8

CAPACITOR

# SS000120 CAP.ELE.2200uF/50V 22322600500 C18,70
# SS000121 CAP.YE-472M 0.0047uF/250V 22847202500 C44,50

FUSE,FUSE HOLDER

# SS000137 FUSE 100V/117V 51S 2.5A/125V 44052500520
# SS000136 FUSE 230V/240V 50T T1.25A/250V 44011200520
# SS000134 FUSE HOLDER 25M/M 37520538211

TERMINAL

SS000084 TERMINNAL 187/0.5T 90001870082 CH-GND,L-GND,L-HOT,L-COLD,

P-S/W,T-HOT,T-COLD

WIRING,CABLE

SS000080 REVERB CABLE 70125402001
# SS000163 POWER SQUEEZER WIRE 2pin 70139602001
# SS000164 POWER SQUEEZER WIRE 3pin 70139603001
# SS000177 POWER LINE WIRE (BLK)
# SS000178 POWER LINE WIRE 150MM (WHT)
# SS000180 POWER LINE WIRE 100MM (WHT)
# SS000181 EXTERNAL SPEAKER WIRE (BLK)
# SS000182 EXTERNAL SPEAKER WIRE (WHT)
# SS000183 SPEAKER WIRE (BLK)
# SS000186 GND CABLE (BLK)
# SS000187 LINE GND CABLE (YLW/GLY)230/240V ONLY
# SS000188 SEND/RETURN WIRE (WHT/BRU/YLW)
# SS000189 REVERB WIRE (YLW/BLU)
# SS000190 BOOST WIRE (YLW/BLU)
# SS000191 C/H SELECT WIRE (WHT/BLU)
# SS000192 POWER TR WIRE (RED/WHT/BLU)
# SS000198 SPEAKER WIRE (WHT)

TRANSFORMER

# SS000128 TRANSFORMER GC-408J 100V 28618580012
# SS000129 TRANSFORMER GC-408U 117V 28628580012
# SS000130 TRANSFORMER GC-408ES 230V 28648580012
# SS000131 TRANSFORMER GC-408S 240V 28658580012

AC CORD

# SS000138 AC CORD 100V PHP209 VCTFK 51106350009

SS000034 AC CORD 117V KKP30A/SJT 51106350003

SS000035 AC CORD 230VD KKP4819R 51106350005

SS000036 AC CORD 230VE SRS.III 51106350008

SS000022 AC CORD 240V KKP550 51106350004

SCREW

SS000050 TAPPING SCREW NI TH1 3.5x12 60000001402 For CORNER

SS000171 TAPPING SCREW BK FH1 2.6x10 60000000202 For LOGO

SS000047 TAPPING SCREW BK TH1 3.5x15 60000000404 For WIRE CLAMP
# SS000145 TAPPING SCREW BK TH1 3.5x18 60000000405 For RUBBER FOOT
# SS000151 TAPPING SCREW BK TH1 3.5x20 60041502025 For REVERB UNIT
# SS000146 TAPPING SCREW BK TH1 3.5x35 60000000411 For BACK BOARD
# SS000150 TAPPING SCREW BK OH1 3.5x15 60011501521 For VENT COVER
# SS000049 TAPPING SCREW BK OH1 3.5x45 60000000410 For CABINET SIDE
# SS000152 TAPPING SCREW NI FH1 3.5x15 60052501521 For ANGLE BRACKET
# SS000147 MACHINE SCREW BK TH M4x20 60000000503 For SPEAKER
# SS000148 MACHINE SCREW BK OH M4x25 60000000504 For CHASSIS

SS000051 MACHINE SCREW NI OH M4x32 60000001507 For HANDLE BRACKET

SS000052 MACHINE SCREW NA PHW M3x10 60000003305 For TR

SS000053 MACHINE SCREW NA PHSW M4x10 60000003502 For HEAT SINK,GND,TRANS

SS000054 WASHER BK NAVEL 4 FAI 60000009010 For CABINET TOP & SIDE

SS000058 WASHER NA PLATE 7 FAI 60000009321 For VR

SS000055 NUT BK ABS JACK 60000009062 For PHONE JACK
# SS000149 BK T NUT M4 60000009090 For CABINET BAFFLE BOARD & TOP BOARD

SS000059 NUT NA FURANCH M4 60000009350 For TRANS,GND

SS000060 NUT NA 6N-M7 60000009362 For VR

PACKING CASE

# SS000142 OUTER PACKING 55112000000

MISCELLANEOUS

SS000067 RUBBER BUSH BR-01 60320000001 For SPEAKER CABLE
# SS000156 RUBBER SHEET 60331510000 For BAFFLE BOARD
# SS000158 SUPPORT DABS 16R 60351600000 For PCB

SS000069 STRAIN RELIEF 4NF/16 60370000002 For REVERB CORD

SS000070 STRAIN RELIEF 5NF/16 60370000003 For AC CORD 100,230E,230D,240V

SS000071 STRAIN RELIEF 6NR16 60370000004 For AC CORD 117V
# SS000162 HEAT SINK HS-15 60610460015
# SS000165 INSULATING SHEET SET TO-3 90000100301 For Q5,Q6
# SS000159 COUPLER COVER 521201 60362521201 For 117V AC SWITCH
# SS000107 GLUE 1603HFR HAN NONG POLYMER CO LTD For 117V AC SWITCH

40124690 FUSE CAUTION STICKER

40017089 SWITCH CAUTION STICKER

40013812 EARTH SEAL

ACCESSORIES(Standard)

# SS000103 OWNER'S MAMUAL ENGLISH
# SS000104 OWNER'S MANUAL JAPANESE

11

NOTE1:The parts marked # are new.
NOTE2:The parts marked # have safety-related characteristics.

Use only listed parts for replacement.

CABINET

# SS000139 CABINET ASSY 52112000000

NOTE1:Replacement CABINET ASSY includes the following parts.

# SS000160 RUBBER FOOT RF-02 60381030001

SS000075 CORNER CSN-03 60420220001
SS000076 HANDLE HDBK-02 60513110001
SS000077 HANDLE BRAKET HBNI-02 60523020001
SS000156 RUBBER SHEET 60331510000

# SS000110 BAFFLE BOARD ASSY

NOTE2:Replacement BAFFLE BOARD ASSY includes the following parts.

# SS000161 LOGO ROLAND(LARGE) 60391310101

SS000167 ANGLE BRACKET 90120100000
SS000114 BACK BOARD ASSY

NOTE3:Replacement BACK BOARD ASSY includes the following parts.

# SS000166 VENT COVER 90090300001 For BACK BOARD

CHASSIS

# SS000112 CHASSIS(FOR 100V/230V/230VE/240V VERSION)
# SS000113 CHASSIS(FOR 117V VERSION)
# SS000141 PANEL 53112000000 for Front,Back

KNOB, BUTTON

SS000066 KNOB CNBB-09 60315303101
SS000065 BUTTON PNBB-18 60312300302

SWITCH

SS000020 PUSH SWITCH JDPA-21SA 30324020021 S5,6,8,SW4,7
SS000132 POWER SWITCH H8660VB 30514048660 S2
SS000021 AC SWITCH H8653VB 30514028653 SW1

JACK, SOCKET

SS000115 PHONE JACK MONO 12.5M/M JK1-7,9

SPEAKER

# SS000135 SPEAKER GC-408/S 40160908034

REVERB UNIT

17055028 REVERB UNIT 8DB2C1E

PWB ASSY

# SS000133 PCB ASSY 33030040810

MAIN BOARD / EFFECT LOOP JACK BOARD / PHONE JACK BOARD
NOTE2:Replacement PCB ASSY does not includes fuse. When you replace the

PCB ASSY, be sure to order specific fuses separately.(refer to TABLE A)
NOTE1:Replacement PCB ASSY includes the following parts.

TABLE A
100V/117V 51S 2.5A/125V

(44052500520)

PNo.SS000137

230V/240V 50T T1.25A/250V

(44011200520)

PNo.SS000136

IC

15189129 IC OP AMP TL072CP IC1-5

TRANSISTOR

SS000003 TRANSISTOR KTA1266 21211266201 Q10,14,102,109
SS000004 TRANSISTOR KTC3198 21233198200 Q13,16,17,18,20,22-24,101
15139139 TRANSISTOR 2SK30AY Q1-4,15,25,100
15119604 TRANSISTOR 2SB649AC Q8,12,21
15129604 TRANSISTOR 2SD669AC Q7,9,11
SS000117 TRANSISTOR 2SB816E 21320816054 Q6
SS000118 TRANSISTOR 2SD1046E 21341046054 Q5

DIODE

15019126 DIODE 1SS133 D1-5,8-14,18,26,27,28,100
01459378 ZENER DIODE MTZJ2.0B D22,23,101,102
SS000108 ZENER DIODE 4.7V D16,17

SS000116 16V ZENER DIODE 1N4745A D15,19,20
# SS000119 BRIDGE DIODE KBPC606 21580806060 D21
# SS000122 LED KLR124 23030300001 D7
# SS000123 LED KLG124 23030300021 D6

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GC-408/GC-408S

Dec, 1997

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GC-408S PARTS LIST

SAFETY PRECAUTIONS:*2
The parts marked have
safety-related characteristics.
Use only listed parts for
replacement.

!

CONSIDERATIONS ON PARTS ORDERING

When ordering any parts listed in the parts list, please specify the following items in the order sheet.
QTY PART NUMBER DESCRIPTION MODEL NUMBER
Ex. 10 22575241 Sharp Key C-20/50
15 2247017300 Knob (orange) DAC-15D
Failure to completely fill the above items with correct number and description will result in delayed or
even undelivered replacement.

12

NOTE1:The parts marked # are new.
NOTE2:The parts marked # have safety-related characteristics.

Use only listed parts for replacement.

CABINET

# SS000140 CABINET ASSY GC-408S 52114000000

NOTE1:Replacement CABINET ASSY includes the following parts
# SS000160 RUBBER FOOT RF-02 60381030001

SS000070 CORNER CSN-03 60420220001

SS000076 HANDLE HDBK-02 60513110001

SS000077 HANDLE BRAKET HBNI-02 60523020001

SS000156 RUBBER SHEET 60331510000
# SS000111 BAFFLE BOARD ASSY GC-408S

NOTE2:Replacement BAFFLE BOARD ASSY includes the following parts.
# SS000161 LOGO ROLAND(LARGE) 60391310101

SS000167 ANGLE BRACKET 90120100000

SS000109 BACK BOARD ASSY

NOTE3:Replacement BACK BOARD includes the following parts.
# SS000168 BACK PLATE 90140000001 For BACK BOARD

JACK

SS000115 PHONE JACK MONO 12.5M/M JK10

SPEAKER

# SS000135 SPEAKER GC-408/S 40160908034

WIRING,CABLE

# SS000183 SPEAKER WIRE (BLK)
# SS000196 SPEAKER SYSTEM WIRE (WHT)
# SS000197 SPEAKER SYSTEM WIRE (BLK)
# SS000198 SPEAKER WIRE (WHT)

SCREW

SS000050 TAPPING SCREW NI TH1 3.5x12 60000001402 For CORNER

SS000171 TAPPING SCREW BK FH1 2.6x10 60000000202 For LOGO

SS000144 TAPPING SCREW BK TH1 3.5x10 60000000401 For BACK PLATE

SS000047 TAPPING SCREW BK TH1 3.5x15 60000000404 For WIRE CLAMP
# SS000145 TAPPING SCREW BK TH1 3.5x18 60000000405 For RUBBER FOOT
# SS000049 TAPPING SCREW BK 0H1 3.5X45 60000000410 For CABINET SIDE
# SS000146 TAPPING SCREW BK TH1 3.5x35 60000000411 For BACK BOARD
# SS000152 TAPPING SCREW NI FH1 3.5x15 60052501521 For ANGLE BRACKET
# SS000147 MACHINE SCREW BK TH M4x20 60000000503 For SPEAKER

SS000051 MACHINE SCREW NI OH M4x32 60000001507 For HANDLE BRACKET

SS000054 WASHER BK NAVEL 4 FAI 60000009010 For CABINET TOP & SIDE

SS000055 NUT BK ABS JACK 60000009062 For PHONE JACK
# SS000149 BK T NUT M4 60000009090 For CABINET BAFFLE BOARD

PACKING CASE

# SS000143 OUTER PACKING 55114000000

MISCELLANEOUS

# SS000156 RUBBER SHEET 60331510000 For BAFFLE BOARD

ACCESSORIES(Standard)

# SS000105 OWNER'S MAMUAL ENGLISH
# SS000106 OWNER'S MANUAL JAPANESE
# SS000155 EXT S/P CABLE GC-408S 60207004082

!

Dec, 1997

GC-408/GC-408S

13

CIRCUIT BOARD

GC-408/GC-408S

Dec, 1997

1 2 3 4 5 6 7 8 9 101112131415161718192021222324 25 26 27 28

A
B
C
D
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F
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The PCB ASSY has reviced from the 2nd lot.
There is no difference in circuit structure.
(The following diagram is effective for 1st lot.

Until Serial No.ZK21099.)

SERVICE RESPONCE

Unnecessary since the circuit structure
of PCB ASSY fas not been changed.

CHANGE INFORMATION

14

CIRCUIT DIAGRAM

Dec, 1997

GC-408/GC-408S

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

A
B
C
D
E
F
G
H

I
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