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1、SERVICE NOTES Issued by RJA Copyright 2002 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 (0800) (AS) 17058016E0 Feb.2002WP-20G(T) SPECIFICATINS.2 LOCATION OF CONTROLS .4 LOCATIO
2、N OF CONTROLS PARTS LIST.5 EXPLODED VIEW.6 EXPLODED VIEW.8 EXPLODED VIEW PARTS LIST.9 PARTS LIST.10 IDENTIFYING VERSION NUMBER.14 TEST MODE.14 Block Diagram.18 Circuit Board (JACK BOARD) .20 Circuit Board (JACK BOARD) .21 Circuit Diagram (JACK BOARD) .22 Circuit Board (PANEL BOARD).24 Circuit Diagra
3、m (PANEL BOARD).25 RadioFans.CN 收音机爱 好者资料库 2 Feb.2002 SPECIFICATINS WP-20G: GK Effect Controls Master On/Off Pedal Effects On/Off Pedal TYPE Knob COLOR Knob LEVEL Knob MODE Knob EFFECT LEVEL Knob NORMAL PU MIX Switch Indicator POWER Indicator (serves also as battery check indicator) MASTER ON/OFF In
4、dicator EFFECTS ON/OFF Indicator Connectors GUITAR OUT Jack GUITAR RETURN Jack GK IN Connector OUTPUT Jack DC IN Jack (DC 9 V) Nominal Input Level GUITAR RETURN: -20 dBu Input Impedance GUITAR RETURN: 1 M(ohm) Nominal Output Level OUTPUT: -20 dBu GUITAR OUT: -20 dBu Nominal Output Impedance OUTPUT:
5、1 k(ohm) GUITAR OUT: 100 (ohm) Recommended Load Impedance 10 k(ohm) or greater Residual Noise Level 96 dBu(GK IN: terminated, Distortion: OFF, NORMAL PU MIX: OFF, IHF-A,typ) Power Supply DC 9 V: Dry Battery x 6, AC Adaptor Current Draw 150 mA (9 V, with GK-2A) *Expected battery life under continuous
6、 use: Carbon: 2 hours Alkaline: 6 hours These figureswill vary depending on the actual conditions of use. Dimensions 173 (W) x 158 (D) x 57 (H) mm 6-13/16 (W) x 6-1/4 (D) x 2-1/4 (H) inches Weight 1.1 kg / 2 lbs 7 oz (including batteries) Accessories Dry Battery (LR6 (AA) type) x 6(#*) Owners Manual
7、 English (#G6017300) Japanese (#G6017299) Roland Service (Information sheet) Options AC Adaptor: PSA series Divided pickup: GK-2A (Roland) Unit Selector: US-20 (Roland) GK Connecting Cable: GKC-3 (3 m), GKC-5 (5 m), GKC-10 (10 m), C-13B(10 m) (Roland) GK Parallel Box: GKP-4 (Roland) *0 dBu = 0.775 V
8、rms *In the interest of product improvement, the specifications and/or appearrance of this unit are subject to change without prior notice. RadioFans.CN 收音机爱 好者资料库 3 WP-20G(T) RadioFans.CN 收音机爱 好者资料库 4 Feb.2002 LOCATION OF CONTROLS fig.panel-h qw iuyt a b e c !4 !2 !3 bo!0!1 r !7!5 !8 !6 5 WP-20G(T)
9、 LOCATION OF CONTROLS PARTS LIST Parts Screw No.Part CodePart NameQty 1F344940301ADAPTOR JACKDJ-0711B-0201 2G2017146CASE1 3G2017148BOTTOM COVER1 3G2357118BOTTOM FOOT2 3G2017621BATTERY COVER1 3G2537726LABEL1 413449155MFPHONE JACK (MONO)HTJ-064-12I2 5G2217150REAR PANEL1 600564556DINTCS5093-10-41521 7F
10、3159104SWITCHSS037-P222BHH-PE91 813449150MFPHONE JACK (STEREO)HTJ-064-12D1 9G2477122R-KNOB1 F3279804POTENTIOMETER 6 CLICKS 50KBRD901-40-125F-B54-06D1 10G2217146PANEL1 11G2477122R-KNOB1 F3279803POTENTIOMETER 11 CLICKS 50KBRD901-40-125F-B54-11D1 12G2477122R-KNOB3 F3279802POTENTIOMETERNO CLICK 50KBRD90
11、1-40-125F-B54-00D3 13F5029126POWER LEDL-113GDT1 14G2357116PEDAL PLATE62X532 15G2187530PEDAL R1 16G2217153LED PANEL1 17G2187531PEDAL L1 181502928100LED (RED)L-34HDSL2 No.Part CodePart NameQty aH5019125SCREW M3X10PAN HEAD W/SW+PW FE BC2 bH5029850SCREW M4X6HEXAGON SOCKET BUTTON HEAD FE4 cH5029851PEDAL
12、SHAFT2 6 Feb.2002 EXPLODED VIEW fig.panel-h x5 x4 x5 21 c k 24 26 x3 d x7 x2 x3 x3 23 f e n b 25 28 27 1 7 WP-20G(T) 1 2 5 3 i 4 g h RIGHT SIDE LEFT SIDE9 6 7 8 8 Feb.2002 EXPLODED VIEW fig.panel-h a 11 18 m 12 18 11 16 j 14 15 17 10 13 9 WP-20G(T) EXPLODED VIEW PARTS LIST Parts Screw No.Part CodePa
13、rt NameQty 1G2017146CASE1 2G2357111CUSHION R2 3H5029851PEDAL SHAFT2 42215770201PEDAL GUIDE BUSH215-7022 52217710900COIL SPRING214-1092 6G2357116PEDAL PLATE62X532 7G2357115PEDAL FOOTM82 8G2187530PEDAL R1 9G2187531PEDAL L1 10G2017148BOTTOM COVER1 11G2357118BOTTOM FOOT2 12G2017621BATTERY COVER1 13G2017
14、620BATTERY CASE1 14G2177308BATTERY TERMINAL(+)1 15G2177309BATTERY TERMINAL(-)1 16G2177307BATTERY TERMINAL(+-)1 17G2257130BATTERY INSULATING SHEET1 18G2537726LABEL1 21G2477122R-KNOB5 23G2257131INSULATING SHEET BOTTOM1 24G2217146PANEL1 25G2217150REAR PANEL1 26G2217153LED PANEL1 2775D4820000JACK BOARD
15、ASSY1 2675D4830200PANEL BOARD ASSY1 No.Part CodePart NameQty aH5019115SCREW M3X8PAN TAPPING-2 FEBZC2 bH5019110SCREW M3X6PAN TAPPING-2 FEZC7 cH5029850SCREW M4X6HEXAGON SOCKET BUTTON HEAD FE4 dH5039205WASHER 12.5X9.5X0.5/0.9INTERNAL TOOTH FENI3 eH5039112WASHER M93 fH5039510NUT M9X12X2FENI3 gH5029852SC
16、REW 4M3 FEBZCHEXAGON SOCKET BUTTON HEAD2 hH5039413NYLON WASHER M4.1X7.5X0.5BLACK2 IH5039414NYLON WASHER M5.1X9.5X0.5BLACK2 jH5019430SCREW M2.6X5BINDING HEAD TAPTITE FEZC2 kH5039521VR ACCESSORY NUT M75 mH5019115SCREW M3X8PAN TAPPING-2 FEBZC5 nH5019125SCREW M3X10PAN HEAD W/SW+PW FE BC2 10 Feb.2002 PAR
17、TS LIST fig.part1e JB - JACK BOARD ASSY, PB - PANEL BOARD ASSY CASING G2357116PEDAL PLATE62X53 2 G2017620BATTERY CASE 1 G2017621BATTERY COVER 1 G2017148BOTTOM COVER 1 G2357118BOTTOM FOOT 2 G2017146CASE 1 # G2217153LED PANEL 1 # G2217146PANEL 1 G2187531PEDAL L 1 G2187530PEDAL R 1 H5029851PEDAL SHAFT
18、2 G2217150REAR PANEL 1 KNOB,BUTTON G2477122R-KNOB 5 SWITCH 13129778SKQKAHTACT SWITCHSW1, SW2 on Panel Board2 F3159104SS037-P222BHH-PE9SWITCHSW1 on Jack Board1 JACK,EXT TERMINAL 13449150MPHTJ-064-12DPHONE JACK (STEREO)JK2 on Jack Board1 13449155MFHTJ-064-12IPHONE JACK (MONO)JK1, JK3 on Jack Board2 00
19、564556TCS5093-10-4152DINCN1 on Jack Board1 F344940301DJ-0711B-020ADAPTOR JACKJK4 on Jack Board1 PWB ASSY # 75D4820000JACK BOARD ASSY 1 # 75D4830200PANEL BOARD ASSY 1 IC 02455056S-80930ALMP-DAT-T2IC (RESET)IC8 on Jack Board1 02122423AN78L07M-E1IC (REGULATOR)IC11 on Jack Board1 02124634AN79L07M-E1IC (
20、REGULATOR)IC9 on Jack Board1 00458034TC75S51F TE85RIC (OP AMP)IC7 on Jack Board1 01906156S-8520E33MC-BJS-T2IC (DC-DC REGULATOR)IC12 on Jack Board1 02568567MB3778PFVIC (DC-DC CONVERTER)IC10 on Jack Board1 15189261M5218AFP-600EIC (BIPOLAR OP AMP)IC1 on Jack Board1 02451434AK4552VTIC (AD/DA)IC2, IC3, I
21、C6 on Jack Board3 # 02569812MN101C30A VER.1.00IC (8BIT CPU)IC4 on Jack Board1 02568578MN101C427BL VER.1.00IC (8BIT CPU)IC5 on Jack Board1 TRANSISTOR F53091112SA1182YTRANSISTORQ15, Q18 on Jack Board2 153091042SA1586-GR(TE85R)TRANSISTORQ10, Q11 on Jack Board2 153191082SC-3324GR-TE85RTRANSISTOR Q2, Q4,
22、 Q5, Q6, Q8, Q9, Q12, Q21 on Jack Boa 8 F53191042SC2859YTRANSISTORQ19 on Jack Board1 153191072SC4116-GR(TE85R)TRANSISTORQ13 on Jack Board1 15329521RN1307(TE85R)TRANSISTORQ7, Q22 on Jack Board3 F5139608IRF7606POWER MOS FETQ16 on Jack Board1 153291032SK880GR-TE85RFET TRANSISTORQ1, Q3, Q20 on Jack Boar
23、d2 DIODE 0256287802DZ5.1-Y(TPH3)ZENER DIODED2 on Jack Board1 010195341SS355 TE-17SWITCHING DIODED1, D4, D9, D10 on Jack Board4 F5029126L-113GDTPOWER LEDLED3 on Panel Board1 SAFETY PRECAUTIONS: The parts marked have safety-related characteristics. Use only listed parts for replacement. SAFETY PRECAUT
24、IONS: The parts marked have safety-related characteristics. Use only listed parts for replacement. QTYPART NUMBERDESCRIPTIONMODEL NUMBER Ex.1022575241Sharp KeyC-20/50 152247017300Knob (orange)DAC-15D Failure to completely fill the above items with correct number and description will result in delaye
25、d or even undelivered replacement. NOTE: The parts marked # are new. (initial parts) 11 WP-20G(T) 1502928100L-34HDSLLED (RED)LED1, LED2 on Panel Board2 F5339137SS14 VF=0.45VDIODED5,D6,D7,D8 on Jack Board4 15339120T01SS302(TE85R)ARRAY DIODEDA1, DA2, DA3 on Jack Board3 RESISTOR 00566867RPC05T 100 JMTL
26、.FILM RESISTORR25,R40,R60 on Jack Board3 00567023RPC05T 101 JMTL.FILM RESISTORR91 on Jack Board1 00567156RPC05T 102 JMTL.FILM RESISTORR4 on Jack Board1 00567289RPC05T 103 JMTL.FILM RESISTOR R3,R8,R19,R24,R45,R48,R54,R56,R57,R67,R79,R8 13 00567412RPC05T 104 JMTL.FILM RESISTORR7,R11,R96 on Jack Board3
27、 00567556RPC05T 105 JMTL.FILM RESISTOR R5,R30,R65,R92,R97,R102 on Jack Board 6 00567290RPC05T 123 JMTL.FILM RESISTORR87 on Jack Board1 00567178RPC05T 152 JMTL.FILM RESISTORR90 on Jack Board1 00567301RPC05T 153 JMTL.FILM RESISTORR17,R20,R76 on Jack Board3 00567434RPC05T 154 JMTL.FILM RESISTORR80,R86o
28、n Jack Board2 00567189RPC05T 182 JMTL.FILM RESISTORR73 on Jack Board1 00567312RPC05T 183 JMTL.FILM RESISTORR59 on Jack Board1 00567190RPC05T 222 JMTL.FILM RESISTORR70 on Jack Board1 00567323RPC05T 223 JMTL.FILM RESISTOR R6,R10,R13,R15,R22,R26,R33,R41,R51,R62 on Ja 10 00566934RPC05T 330 JMTL.FILM RES
29、ISTORR93 on Jack Board1 00567089RPC05T 331 JMTL.FILM RESISTORR61,R82,R84 on Jack Board3 00567234RPC05T 392 JMTL.FILM RESISTORR89 on Jack Board1 00567112RPC05T 471 JMTL.FILM RESISTORR68 on Jack Board1 00567245RPC05T 472 JMTL.FILM RESISTORR12,R23,R32,R39,R50,R58,R71,R72,R77,R78,R81 11 00567378RPC05T 4
30、73 JMTL.FILM RESISTOR R1,R2,R29,R36,R37,R38,R49,R55,R101,R103,R104 11 00567501RPC05T 474 JMTL.FILM RESISTORR18,R21,R98,R99 on Jack Board4 00567134RPC05T 681 JMTL.FILM RESISTORR43,R44 on Jack Board2 00567267RPC05T 682 JMTL.FILM RESISTORR74 on Jack Board1 00567278RPC05T 822 JMTL.FILM RESISTORR88 on Ja
31、ck Board1 02239612RR0816P-472-DMTL.FILM RESISTOR R16,R28,R35,R46,R53,R64 on Jack Board 6 01909734RR0816P-682-DMTL.FILM RESISTOR R14,R27,R34,R42,R52,R63 on Jack Board 6 F542937322KFCHIP RESISTOR (1608 TYPE)R66 on Jack Board1 F542937433K OHM F RANK (1%)CHIP RESISTOR (1608 TYPE)R69 on Jack Board1 POTEN
32、TIOMETER F3279802RD901-40-125F-B54-00D POTENTIOMETERNO CLICK 50KBVR1, VR3, VR4 on Panel Board3 F3279804RD901-40-125F-B54-06D POTENTIOMETER 6 CLICKS 50KBVR5 on Panel Board1 F3279803RD901-40-125F-B54-11D POTENTIOMETER 11 CLICKS 50KBVR2 on Panel Board1 CAPACITOR 02341489ECPU1C474MA5 MYLAR CAPACITOR(SUB
33、MICRON)C3 on Jack Board1 F536754210/16V ALUMINIUMELECTROLYTIC CAPACITORC1, C4 ,C6 on Jack Board3 F5367546100/16V ALUMINIUMELECTROLYTIC CAPACITOR C35, C39, C79, C82, C84, C85, C86, C88, C94, 13 F536750347/6.3V ALUMINIUMELECTROLYTIC CAPACITORC21, C70 on Jack Board2 F5359730ECJ1VC1H821JCHIP CAPACITOR (
34、1608 TYPE) 1 F5359705ECUV1H270JCVCHIP CAPACITOR (1608 TYPE)C72 on Jack Board1 F5359780GRM39B103K50PTCHIP CAPACITOR (1608 TYPE) C11, C25, C77, C110, C111, C112, C114, C115, 10 F5359740GRM39B222K50PTCHIP CAPACITOR (1608 TYPE)C120 on Jack Board1 F5359775GRM39B332K50PTCHIP CAPACITOR (1608 TYPE) C53, C54
35、, C55, C56, C57, C76 on Jack Board 6 F5359750GRM39B392K50PTCHIP CAPACITOR (1608 TYPE)C64 on Jack Board1 F5359720GRM39CH101J50PTCHIP CAPACITOR (1608 TYPE)C2, C9, C12 on Jack Board3 F5359704GRM39CH220J50PTCHIP CAPACITOR (1608 TYPE)C58, C60 on Jack Board2 F5359709GRM39CH330J50PTCHIP CAPACITOR (1608 TYP
36、E)C75 on Jack Board1 F5359800GRM39F104Z25PTCHIP CAPACITOR (1608 TYPE) C16,C18,C23,C24,C26,C27,C29,C30,C31,C32,C33, 38 F5359790GRM39F333Z50PTCHIP CAPACITOR (1608 TYPE)C92, C101 on Jack Board2 F53696011/50VCHIP CAPACITOR C7, C8, C13, C14, C19, C22, C28, C41, C42, C 17 02231323ECJ2VF1C105ZCERAMIC CAPAC
37、ITOR C10,C15,C17,C43,C45,C52,C62,C66,C68,C113,C11 12 F3629272KM47UF/10VELECTROLYTIC CAPACITORC1 on Panel Board1 INDUCTOR,COIL,FILTER F2449216SLF7045T-151MR40SMD COILL4, L6, L7 on Jack Board3 12449384SBT-0115WEMI FILTERL1 on Jack Board1 F2449210SLF7032T-4R7M1R7-2(4.7UH)EMD COILL3, L5 on Jack Board2 C
38、RYSTAL,RESONATOR F5299108HC-49SM 8MHZCRYSTALX1 on Jack Board1 01455201MA-406 12.288MHZCRYSTALX2 on Jack Board1 CONNECTOR F343916053015-0210 2P P=2MMCONNECTORCN5 on Jack Board1 # F3439177A2001WV2-12PCONNECTORCN2 on Jack Board1 WIRING,CABLE G3487163WIRING BATTERYL=80MM 2P 1 DIODE 12 Feb.2002 # G341718
39、8WIRING 12PL=65MM P=2MMCN1 on PB to CN 2 on JB1 F3477146RIBBON CABLE3P L=40X5X5MM P=2MMCN3 to CN4 on Jack Board1 SCREWS H5019110SCREW M3X6PAN TAPPING-2 FEZC 7 H5019115SCREW M3X8PAN TAPPING-2 FEBZC 7 H5019125SCREW M3X10PAN HEAD W/SW+PW FE BC 2 H5039205WASHER 12.5X9.5X0.5/0.9INTERNAL TOOTH FENI 3 H502
40、9850SCREW M4X6 HEXAGON SOCKET BUTTON HEAD F 4 H5029852SCREW 4M3 FEBZC HEXAGON SOCKET BUTTON HEAD 2 H5039510NUT M9X12X2FENI 3 H5039413NYLON WASHER M4.1X7.5X0.5BLACK 2 H5039414NYLON WASHER M5.1X9.5X0.5BLACK 2 H5019430SCREW M2.6X5 BINDING HEAD TAPTITE FEZC 2 H5039521VR ACCESSORY NUT M7 5 H5039112WASHER
41、 M9 3 PACKING G2607212PACKING CASE LOWER 1 # G2627216PACKING CASE UPPER 1 G2237613SIDE PAD 1 G2237614REAR PAD 1 MISCELLANEOUS G2357115PEDAL FOOTM8 2 2215770201PEDAL GUIDE BUSH215-702 1 2217710900COIL SPRING214-109 2 G2257130BATTERY INSULATING SHEET 1 G2177308BATTERY TERMINAL(+) 1 G2177307BATTERY TER
42、MINAL(+-) 1 G2177309BATTERY TERMINAL(-) 1 G2357111CUSHION R 2 G2257131INSULATING SHEET BOTTOM 1 # G2537726LABEL 1 02123845LEAF A on Jack Board1 G2197126LED GUIDE 1 ACCESSORIES (Standard) # G6017299OWNERS MANUALJAPANESE 1 # G6017300OWNERS MANUALENGLISH 1 # *DRY BATTERYLR(AA) TYPE 2P 3 40232389WARRNTY
43、 CARD(JAPAN ONLY)1 WIRING,CABLE 13 WP-20G(T) 14 Feb.2002 IDENTIFYING VERSION NUMBER 1.Insert the AC adapter plug into the adapter jack while pressing the left (MASTER ON/OFF switch), and the right (EFFECTS ON/OFF switch) pedals. 2.Release the left and right pedals when the “POWER” LED comes on. 3. P
44、ress the left then the right pedal within 4 seconds. 4.Pressing the right pedal displays the version number as shown below. TEST MODE Required items Guitar with GK-2A + GK cable Oscilloscope Noise Meter Monitor speaker ADAPTOR (PSA TYPE) Bypass Cable Entering Test Mode 1.Connect the GK-2A to GK IN u
45、sing the GK cable. Set the selection switch of the GK-2A to SYNTH. 2.Insert the AC adapter plug into the adapter jack while pressing the left (MASTER ON/OFF switch) and the right (EFFECTS ON/OFF switch) pedals. 3.Release the left and right pedals when the “POWER” LED comes on. 4.Press the left then
46、the right pedal within 4 seconds. 5.The unit will enter the test mode (selection waiting status), and all LEDs will come on. Note: When the unit enters the test mode, it simultaneously performs an automatic DSP check. The state of the LEDs when entering the test mode differs depending on this result
47、. For further information, refer to “1. DSP check”. Note: After performing 2, perform 3 and 4 within 4 seconds. After the time has lapsed or if a different switch is operated, the unit does not enter the test mode but starts normal operation. Exiting Test Mode Pressing the left pedal (MASTER ON/OFF switch) while in test item selection status exits the
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