Roland GC-408 Service Notes

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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Roland GC-408 Specifications

General

Brand	Roland
Model	GC-408
Category	Musical Instrument Amplifier
Language	English