SERVICE MANUAL YCV80/YCV80Q
Contents
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5. R15 14W MPSA06 IRF830 78XX 79XX RK MJE340 ie 550 56 H 15 1 2K 4 13 oN y Shy N nir Ruts 3 2G ON 6 11 j 8 9 MII MII N CBE EBC oe ne 6882_ 6880_ PC 12AX7A 3700_DRW NC 15 WH sae 5gs nize OOV exe savas ad TO 92 TO 92 126 TO 220 TO 220 TO 220 588 COM Fa Noo 8 STYLE_P32 NO R19 5 sr ue an nr FTISWITCH TIAN TAW Rite TKR Us v2 2K 220K cas cas 4148 18K 6 18 220P IN 400V 330P 50V Gol 250V Z 10 2 hoov Tow37 lw 3K c29 R55 R87 220P 1007 amin T Lau 223 cH2 HN MR Taw cu ad aw DRASS mu RS naw a sl br T ci R14 GRN 2507 TAW 109K 6 O c2 15V e 4 EFF SEND SIR36 5 s V1 B Le aes ano 4
6. R15 TAW MPSA06 IRF830 78XX 79XX 100K MJE340 H 1 16 5 550 56 157 1 2K 4 13 oN y Shy c83 N nir Ruts 3 2G ON 6 11 fy g i 700K 700K BN3 NC GDS eo eis 6882_ PC 688 _ PC 12AX7A 3700_DRW NC 15 WH sae Sev WHT hoov ene TO 92 TO 92 TO 126 TO 220 TO 220 TO 220 538 QCM TAN 888 STYLE p32 STYLE P29 NO P rf se fra ii nr FTISWITCH 174W 114W Rite TARAS 22 3 100K 470K es cee 448 18K 6 18 pue IN 400V 330P 50V Gol 250V ci10 250 hoov TOWS7 lw 3K c29 R55 R87 g 220P 100V ol LS c23 RE aa l Ras 15V TAN 4 470P 507 OP ON ou ZIK Ds c21 TN 50 or AW 6 1 9 15V 5 4 EFF SEND SIR36 5 s V1 B I R31 g ENS 4 be mov f 2X_
7. be i 2X_TRIODE_HCT V2 A R56 R86 c26 15V EIR120 Ra 2 Pao TOON 100V R40 10K TOK 47K 80 21826 4148 R38 S 100R 470K 0 AR a 47N 10 7 NBSA aT 220P 1007 hi M VOLUME a R45 CH1 NAN 7 cr 915 1K54 apis 3 NC EM jks TAW BC550C DK as 2 2 SIA 1052 a6 R34 YEL a AJB LIN U2 B 174W Az 2U 5101 VAW t 1992 CH SELECT gt CH SELECT 4497 Co1 R90 5 TOK 35222 10 ras ER AU TA EFFIRETURN a NO NO OV 52 3522 352252 MIEFF RETURI 487 TLO72 Re TARKXS 44 OV qro NO NETO0125 6 10K F TAN i I TAN T Raz Eten GND GND TANT ca5 220K 220P 100V Bye 887 885 COM REV SND L 9 c38 RCA CB MT HORZ K901 Sal 250V GND TOON 100V a 05 4148 2 z Ml cs 155 Gi 100 Stok R39 qu BE du xii alt En Rig RIGOR a z 10K R9 IN ji RER nee ca hoov 7 Eo R91 SyR114 249K CH co va NC MPSA06 a hev 2 WAT 5102 47N 100v 7 15V COM 89 oa a 2N2 2007 500K R150 6 glisse psov ton hoop i gt EX _ tra 500K BC55
8. M VOLUME 15V R92 REV RTN TAW i R158 co R41 ae 220K 100K R93 Fimm aay R148 R149 cag ca6 TAN TAN 470P 700V 22N 1007 2K2 90 1822 iks cao 2923 1K 15V SL bav 220 sv tea SON R119 R154 19 MMB aa 3436 4K7 mMPsao6 15V 220R EN SB lt Es 16 GND FUSE ee 6880 STANDBY j Riis TaN 5 alue A 20 62 NC NCC LD5 iaw HEADPHONESILINE OUT NAMSA s8 3682 HV we 2 STANDBY gt 7 stanpgyYEL 8 9 106 2 reo pe IRF830 R130 575 B S5 A 830 Li 7 a 1 ow 3522 8 3522 pee 3436 6 RED 6730 218132 ae NO NO LD3 bi CORD T0220 220 0 DPST CE ONLY 1 HI V REG lump RED so neo ae pers EUR a 3682 7LINE 3682 HLINE IN 5 from Q22 4 7 BLI 21 WHT MW22 Ti Gry BC550C 12 10V0 g 1N5240BRL GND 182102 4 36820 FIL 680K T 7 8108 YEL Mio D13 820 4 62U P20N RS k R140 R S c67 6 3 18W HER508 bsov 5 2 pie 220N 4 a o GRN fie m lt Hero nee 4 7 aes iar ia ae GRN Gr ni we vB VeS Re J sl 1 RIO RO 620R 13 i EE a CL a 3923 GND T 98 T00V Function 4 26 GND is 00065 26
9. J YCV80 Q xd 10V00 C73 C80 W1 6959895554 W16 2 W30 3610 a g 0285 CS gt FF 299 CS 2 oro e i Pcb Mech M60210V00 Top Assy M60210V00 92 vu eq Gx Ce 218 BlankSize 18475x7950 YS vio 184 Zr s gt 1 6ex Le LONG AXIS lt H 9 lt q l LLI LLI _ ORIGIN ne 4 a HO ONS C45 ad a SEE LAYOUT DIAGRAM M602 PCB DATABASE HISTORY M602 DRILL HISTORY o MOD MODEL S YCV80 PRODUCTION NOTES DATE VER DESCRIPTION OF CHANGE DATE VER DESCRIPTION OF CHANGE 1 2001 0508 1 00p0 First Prototype APR TSDO0S v12 PURE FIC BREAKAWAY AND RTENERRSS 1 THERE IS A HEATSINK 2436 THAT IS ATTACHED 2 12001 06 05 1 00 1 Remove cutouts for BE tube sockets
10. OS O O rang 1327E 240V MAT 20 GA SATIN COAT BLANK 48 000 X 96 000 ATV MULTIPLE OF 63 I UNIT FINISH N A IL TOP VIEW FOR CONSTANT BEAD SET TOOL AT 7 990 1 939 O O O re darts dr Pes ee tee 0 9 e END V EW O L J Esa 2 O IN THIS VIEW BEND UP 90 INDICATES LOCATIONS OF FOAM FOR YCV40 SOMEIRIC VIEW INDICATES FOAM LOCATION FOR VERSION 7 00 JESTON URW SCALE Foo YCV40 80 SHIELD DRAWN DLZAP PLUT CALE Yorkville PART 7358 DATE 406 02 FILE NAME ycv40 2358 FP PRT MODEL YCV40 80 CE DEPT TEXT IS AT 20 AT FULL SIZE SERVICE BULLETIN FEB 20 2003 MODEL YCV80 RE POTENTIAL FAILURES OF POWER SUPPLY DIODES We have experienced an unusual number of failures amongst the rectifier diodes supplied by a specific manufacturer To this point in time we have been able to determine that we have received a certain percentage of diodes that have a weakness which surfaces after the unit has been run several times The symptoms described by customers will be blowing fuses or will not start up In either case it is likely that you have one of these bad diodes When you experience this condition we recommend that you replace all
11. nee NETO0089 26 C sy SEREEN 220K 3 FEV 26 D gt 3 3682 PLATE w34 15 26 4007 aou 6872 hoou hoon R142 HR BLU w12 pr 75 76 10220 C80 Ja R123 R121 MJES40R159 2507 AISENS GND 26 F y 5V hoov V3 C 50W 1 2 T eW 1 1 V4 A 4 R54 36827C T 4007 2X_TRIODE_HCT 300R 920 52080 c42 R65 T OW R66 T 0W 16 NETO0196 26 G YEL W8 20K 114W 4 220R AW PENTODE 220R y 6873 18 5 15 22N 400V 8208 5 PENTODE B20R FLMP 18 00026 26 H D16 9 Rid T0126 Mer c39 s ge 1872 EIR69 5 w18 0124 261 8700 hrou 1000 hoon 1 DA A AU LP EL 7 2X_TRIODE_HCT 82 220K 8 isens 8 A2SENS at NETO0125 26 J ory We D18 ae ake T0220 de co i io d J NET00079 26 K 1 amp F T 2n R143 2X_TRIODE_HCT _TRIODE_HCT 00 oe wy e oa a GND 26 L sere sct Cv TER 5 7 psov 7 7 TT TD BBIAS 2 7 a Ns Jar o als ve 100 g es re lor END M602 PCB DATABASE HISTORY M602 00 7 SIRT BIR70 BISENS 91565 15 2 2x_TRIODE_HGT amp 100 2220 8 MODEL S MODEL S yCV80Q for V3 A in rT PENTODE DATE VER DESCRIPTION OF CHANGE DATE VER DESCRIPTION OF CHANGE GND SRE ZN jov Taw 5 4 R60 2001 05 08 1 00 0 First Proto 1 NOV 18 2002
12. 1 NOV 18 2002 7 00 MOVE D11 D12 D13 D14 TO ELIMINATE 2 SHORTS IRF830 3 NOV 01 2004 8 00 PC 6728 TUBE LABELS UPDATED TO V1 TO V7 GT MJE340 4 JAN 04 2005 8 10 PC 6789 D11 D12 D13 D14 1N5408 HER508 HG MPSA06 5 JAN 06 2005 ADDED 2437 HEATSINK GT BC550C MPSA56 6 APR 15 2005 PC 6793 PC 6795 FIX BREAKAWAY AND RTE NEAR S5 7 MAY 17 2005 9 00 GT FORCE UPDATE PADS REQUIRED TRACE CHANGES 8 R94 4849 gt 4796 180K REPLACED LEAD SIZE PARTS 9 MAY 12 06 10 00 PC 7125 HG RCA JACKS 3914 TO 6541 10 MAY 23 06 y PC 7091 HG 3522 SWITCH HOLES 0 031 TO 0 040 12 D V N 13 D ECB GDS TO 92 TO 92 TO 126 TO 220 78XX 79XX IGO GIO TO 220 220 3700_DRW A a o EE e O a o S a
13. move ribbons cables 4 12001 07 05 1 00 2 Moved Send and Return pots out 0 075 D V N 5 Added Skrn outline to BE tube sockets D N 743 Nad See ON aces Ro gt g across 8 Move C93 47 be across 2 eee 3850 i Add 160 10K from wiper fo top of Pts MODEL S YCV80 In series WI output 1 1120011010 2 10 pc 6544 06 30V gt 33V C19 150N gt 330N C20 330N gt 470N PC PENDING CHANGE Devices 12 15 1N gt 470P 17 470P gt 1N R23 R23 470K gt 220K PC 13 C39 40 100N gt 10N 3796 MODEL S YCV80 ee ee 270810 PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY 5 NOV 30 2001 2 30 CHEATS REPLACE R122 C87 Q21 WITH D6 D22 D23 D24 ee DEEDS BIV ZENER IN SERIES O TION VART u 6 JAN 17 102 3 00 PC 6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS Haal NOR 7 26 02 4 00 PC 6512 D11 12 13 14 MR854 TO 1N5408 8 D V NEW PADS FOR TABS RCA JACKS 9 APE 10 2002 5 00 pads and holes for 3921 jack PS GAIN 2496 8430 N 10 APR2902 C15 MOVED ADD JUMPER X64 oe es E 11 JUN 26 2002 5 10 PC 6541 R124 100K TO 47K 12 JUL 05 2002 6 00 6544 MOVE TRACES SLD BRDGING 2 13 SEP 03 2002 6 10 PC 6563 R124 47K TO 100K 025 A JMP N M602 P4 P9 VOLUME 4425 8430 N MODEL S YCV80 F STYLE_P32 STYLE P29 DATE VER DESCRIPTION OF CHANGE R F 4 N
14. sa U8 A 3682 61 TOGR PENTODE PENTODE PENTODEPENTODE PSM Rize C53 c52 cs1 4148 aK 4 7 A Babe aioe TAN GRN SAN i V5 B V4B v amp B TAN 4 330N 63V T 330N 63v 330N 63 i N3 80P We TAW 1 2M2 99 55 21 056 15v SNDK GND hoov hoov s 3923 220P 1007 Function 4 NETO0060 26 GND is 00065 26 se NETO0089 26 C 3682 Lov 7815 7_ a SCREEN S 15V 26 D gt 3 3682 PLATE w34 15 26 4007 aou 6872 hoou hoon R142 HR BLU w12 019 75 76 10229 C73 R123 R121 MJES40R159 250V SISENS 186 GND 26 F hoov 2x TRIODE HeT V3 C 50 172W DEN 1 1 V4 A R53 4 R54 3682 4007 390R a20 22080 c42 R65 TOW R66 7 0W 16 k be a cers g RS TAR we 00026 26 H D16 9 Rid T0126 Mer c39 ERE 872 869 z 5 w18 00124 261 4700 hrou 1000 hoon DA A AU LP EL 7 2X_TRIODE_HCT 5826 220K AISENS 8 JA2SENS x 3682 4007 c77 c78 C74 c79 TOOK S 1875 R61 R63 ig a ort pe 4 9 NV cm a wo hou nou 2 z nou F ER ER RE We 00079 26 4007 R143 2X_TRIODE_HCT TRIODE_HCT tee ces ay oa Rar R74 LINE_IN GND 261 MC7915CT 78R 5 7 50 5 1052028 ie oR 1 BBIAS a te ee TER poo 2 ans2
15. 05 2002 6 00 6544 MOVE TRACES RE SLD BRDGING K EE AR Guitar Amp PCB M602 Sheet 1 of 2 13 SEP 03 2002 6 10 PC 6563 R124 47K TO 100K D25 TO A JMP NETO0066 30 1 Date Tue Sep 05 2006 Rev 10 00 Yorkville Fitename M602 10V00sch SCH2002 A fs lt L LE EH Es EL Em TS Ad e i rs lex ao a 0 FA OC TAB SUIDE O M 2 144 C E RON SWCH c81 Q 4 OO D ES TAA ser Lu HS 275V BLK O X N ETCH GUIDE Ee LINE IN 22 2 C82 WHT gt P10 FT SWITCH M602 1 3 b szy 8 woz oa 969 A 969 CES g Ye 8 lox ile amp 2404001 Ove W23 3638 C51 ETCH GUIDE oe Pa 24040012 N se 8 evocee enoces 8 89 89 S ey QF srid cu gt ox a c lS g 8 Poesj aC Dez 5001 ery sx _ 801 9014 go oz cel g 70019 Z 009 SOLE Dis c79 C74 SPKR 8
16. 174W 1 4W B1SENS GND am MPSA56 MPSA56 am R80 R82 POTLIST 2 774W 2 17 4W B2SENS MODEL S YCV80 YCV800 47K DATE VER DESCRIPTION OF CHANGE MODEL S 2 4 A 20N 1 2001 1017 2 20 PC 6456 C16 IN TO 2N2 220p TO REF FUNCTION PART KNOB NEW 20 4 cas 2 470P R148 10K TO 8K2 P1 P6 TREBLE 4424 8430 N 3V 18 3 NOV 30 2001 2 30 PC 6475 REPLACE R125 R122 C87 Q21 WITH D6 D22 D23 D242 7 BASS 1425 8430 N 30 8 4 025 026 51 ZENER IN SERIES P3 P8 MID 023 8130 N 15 30 C 5 C66 220N 250V TO 10u 450V ee oN 8430 GNE 6 JAN 17 02 3 00 PC 6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS EFESEND 4497 NA N ENB 7 FEB 26 02 4 00 PC 6512 011 12 13 14 MR854 135408 Pie EFERETURN 497 NA N 15V 30 E 8 NEW PADS FOR TABS RCA JACKS 10 PRESCENCE 4423 B430 N Product 9 Apr 10 2002 5 00 new pads and holes for 3921 jack PAS REVERB 4423 8430 NETO 30 F YCV80 10 APR 29 02 15 MOVED ADD JUMPER X64 PRES VOLUME R 8430 NETO 30 6 SZ 11 JUN 26 2002 5 10 PC 6541 R124 100K TO 47K R E F K LT F 12 JUL 05 2002 6 00 PC 6544 MOVE TRACES RE SLD BRDGING K EE AR Guitar Amp PCB M602 Sheet 1 of 2 13 SEP 03 2002 6 10 PC 6563 R124 47K TO 100K D25 TO A JMP 0066 30 1 Date Tue Sep 05 2006 Rev 10 00 Yorkville Fitename M602Q 10V00sch SCH2002 A ee dt d L 1 L
17. 1N9262B 15 10 Add R159 in series with Q20 output 10 MAY 23 06 PC 7091 HG 3522 SWITCH HOLES 0 031 TO 0 040 100 6 11 20011010 2 10 pc 6544 06 30V gt 33V C19 150N gt 330N C20 330N gt 470N D 1879 12 C15 1N gt 470P 17 470P gt 1N R23 R23 470K gt 220K 12 GND R81 R83 13 C39 C40 100N gt 10N 13 D V N A1SENS 174W 1 4W B1SENS GND am MPSA56 MPSA56 am POTLIST se 2 MODEL S Foi AISENS 1 8 1740 8255 MODEL S YCV80 2 4 DATE VER DESCRIPTION OF CHANGE 20N 1 2001 1017 2 20 PC 6456 C16 IN TO 2N2 220p TO REF FUNCTION PART KNOB NEW 20 4 cas 2 470P R148 10K TO 8K2 P1 P6 TREBLE 4424 8430 N 3V 3 NOV 30 2001 2 30 PC 6475 REPLACE R125 R122 C87 Q21 WITH D6 D22 D23 D242 7 BASS 4425 8430 N NETO oe 4 D25 D26 51V ZENER IN SERIES MID p 3430 N 15 30 C 5 C66 220N 250V TO 10u 450V GAIN 2 8430 6 JAN 17 02 3 00 PC 6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS EFF SEND 4487 N END ce BAS 7 FEB 26 02 4 00 PC 6512 D11 12 13 14 MR854 TO 1N5408 Pie EFFRETURN 4497 N 15V 30 E 8 D NEW PADS FOR TABS RCA JACKS P10 PRESCENCE 4425 8430 N Product 9 Apr 10 2002 5 00 new pads and holes for 3921 jack PAS REVERB 4423 8430 NETO 30 F YCV80 10 APR 29 02 i C15 MOVED ADD JUMPER X64 PAPS VOLUME 8430 a NETO 30 G SZ 11 JUN 26 2002 5 10 PC 6541 R124 100K TO 47K R F F K N 12 JUL
18. 4 rectifiers with industry standard part 1N4007 or you can order 4007 s from us as part 6438 We recommend changing out all 4 rectifiers in order to be 100 certain of no possible repeat failures
19. Be lt H 9 lt q l LLI LLI 218 BlankSize 18475x7950 6Y 184 Zr s gt 1 6ex Le LONG AXIS _ ORIGIN ne 4 a HO Feno eA or 8 5 ANE 9 ONS C45 Eden a SEE LAYOUT DIAGRAM M602 PCB DATABASE HISTORY M602 DRILL HISTORY MODEL S YCV80Q MOD 5 YCV80Q PRODUCTION NOTES 2001 0508 First Prototype Prose PCRGYOS FICERERRAWAYANDRTENEARES 1 THERE IS A HEATSINK Z436 THAT IS ATTACHED 1 20010508 1 00p0 First Prototype PC 6793 6795 FIX BREAKAWAY AND AR 1 2001 06 05 1 0051 Remove cu outs for BE tube sockets move ribbons cables SEE HISTORY TABLE FOR V9 00 i i line up change shearin routin 4 2001 07 05 1 00p2 Moved Send and Return ots out 0 075 IN WI RI N G 8800 5 Added Skrn outline to tube sockets D Z437 20010849 100 Add ETES TN across mie gt g across 8 Move C93 47 be across 2 eee ee 3850 i Add R160 10K from wiper to top oe MODEL S YCV80Q f
20. exposed to dripping or splashing water no objects filled with liquids should be placed on the apparatus Terminals marked with the lightning bolt are hazardous live the external wiring connected to these terminals require installation by an instructed person or the use of ready made leads or cords Ensure that proper ventilation is provided around the appliance No naked flame sources such as lighted candles should be placed on the apparatus Power Cord The AC supply cord should be routed so that it is unlikely that it will be damaged If the AC supply cord is damaged DO NOT OPERATE THE UNIT Service The unit should be serviced only by qualified service personnel Veuillez Lire le Manuel contient des informations qui devraient tres comprises avant l op ration de votre appareil Conservez S V P ces instructions pour consultations ult rieures Emballage Conservez la boite au cas ou l appareil devait tre retourner pour r paration Attention Lors de l utilisation de produits lectrique assurez vous d adherer a des precautions de bases incluant celle qui suivent Alimentation Lappareil ne doit tre branch qu a une source d alimentation correspondant au voltage sp cifi dans le manuel ou tel qu indiqu sur l appareil Cet appareil est quip d une prise d alimentation polaris e Ne pas utiliser cet appareil avec un cordon de raccordement moins qu il soit possible d ins rer com
21. 0C R151 OV T T 100N 1007 V1 A c17 R25 V2 B Alisa Ex 896 TAN M BASS 4425 C8 100K IR9S 22 TRIODE HET Toe 7 2X_TRIODE_HCT co JA TOON 100v f R23 os M VOLUME 15V pi REV RTN 47N 100V co Ra 18K 9 1 MES Rea TAW TAW 28 oN law J10 B30N BRS _ Al 15 Ta 12K GND 2 2 19 1822 amp 1K5 C20 4423 SKa 15V 6541 pav 220K F PN Ean 150 I R119 R117 R154 MND AN 3436 DOR en 218135 18134 6 sik amp 470R 25 16 GND FUSE ee 6880 STANDBY j Riis TaN 5 alue A 20 62 NC NCC LD5 iaw HEADPHONESILINE OUT NAMSA s8 3682 HV we 2 STANDBY gt 7 stanpgyYEL 8 9 106 2 reo pe IRF830 R130 Sts COM COM B SER pau a 1 ow 3522 3522 OPERATE 6 Te 6730 SIR132 BMP NO No LD3 CORD TO220 220 0 V DPST CE ONLY 1 HI V REG lump RED so neo ae pers EUR a 3682 7LINE 3682 HLINE IN 5 from Q22 4 7 BLI 21 WHT MW22 Ti Gry BC550C 4 10V0 p g 1N5240BRL GND 1327 E 4 3682 FIL 680K D ows R108 O VEL GRN vio 6880 Lan D13 820 4 62U P20N N35 2 R140 R S c67 6 3 T 8W HER508 bsov 5 BLK 2 100RO D14 220N Ks EZR 9 GRN at ces t s 5107 oe
22. 1 AW 1K54 1 T amp T RES 150N 63V 10 CAP T amp R RAD 2 FLM 1 2W 2K 5 T amp R RES 220N 63V 10 CAP T amp R RAD 2 FLM 2 0W 2K2 5 BLK RES 220N 250V 10 CAP BLK RAD POLY FLM 1 4W 2K2 5 MINI T amp R RES 330N 63V 5 CAP T amp R RAD 2 FLM 1 AW 2K21 1 T amp R RES w wow uw Alo alo A a po Al Alo N a ww Alo p m a a a oo 470N 63V 10 CAP T amp R RAD 2 FLM 1 4W 4K7 5 T amp R RES 1U 63V 5 CAP T amp R RAD 2 FLM 1 2W 8K2 5 T amp R RES _10U 63V 20 CAP T amp R RAD 2 EL 1 4W 8K2 5 T amp R RES _10U 450V 20 CAP BLK EL 1 4W 10K 5 T amp R RES _220 50V 20 CAP T amp R 6X7MM 2 EL 1 AW 12K 5 T amp R RES _330 16V 20 CAP T amp R RAD 2 1 AW 18K 5 T amp R RES 820 450V 20 CAP BLK 22X30MM 1 AW 22K 5 T amp R RES 1000 25V 20 CAP T amp R RAD 2 EL 1 AW 24K 5 T amp R RES 1000 63V 20 BLK 10X13MM EL 1 AW 27K 5 T amp R RES 4700 25V 20 CAP BLK 10X15MM EL 1 AW 33K 5 T amp R RES TRAYNOR DUAL FOOTSWCH 10 CORD BULK 1 4W 36K 5 T amp R RES _10K BLIN 9MM HORIZONTAL P29 1 4W 39K 5 T amp R RES _20K 15AAUDIO 9MM P32 1 4W 47K 5 T amp R RES 100K iBLIN 9MM P32 1 4W 62K 5 T amp R RES 500K 15AAUDIO 9MM P32 1 4W 68K 5 T amp R RES 25 X 20 X 50 2 MIL PLASTIC BAG 1 4W 82K 5 MINI T amp R RES NO PO oO NO BR DID D SNAP ON 0 718 INSULATING BUSHING 1 4W 100K 5 MINI T am
23. 2 NPO 1 0W OR47 5 FLAME PROOF T amp R RES SPST ROKR SW QUIK 180 AC PWR BL BL __1N 400V 5 CAP T amp R RAD 2 FLM 1 0W 10R 5 FLAME PROOF T amp R RES SPRING RETAINER FOR OUTPUT TUBE __2N2 400V 5 CAP T amp R RAD 2 FLM 1 2W 18R 5 T amp R RES 9 PIN PC MOUNT TUBE SOCKET BE __3N3 100V 5 CAP T amp R RAD 2 FLM 1 4W 5 T amp R RES 8 PIN PC MOUNT TUBE SOCKET __4N7 250V 5 CAP T amp R RAD 2 FLM 1 4W 47R 5 T amp R RES 66 TETRODE OUTPUT TUBE BULK __4N7 250V 20 CAP BLK Y 10MM AC 1 8W 100RO 1 FLAME PROOF T amp R RES 12AX7 DUAL TRIODE PREAMP TUBE __6N8 100V 5 CAP T amp R RAD 2 FLM 1 4W 100R 5 T amp R RES YCV80 POWER XFMR _10N 100V 10 CAP T amp R RAD 2 FLM 1 0W 220R 5 FLAME PROOF T amp R RES YCV80 OUTPUT XFMR OR RO BR 0O _10N 250V 20 CAP BLK RAD POLY FLM 1 8W 220RO 1 FLAME PROOF T amp R RES _22N 100V 10 CAP T amp R RAD 2 FLM 1 4W 220R 5 T amp R RES _22N 400V 10 CAP BLK RAD POLY FLM 5 0W 390R 5 BLK RES _22N 275V 20 CAP BLK X2 15MM AC 1 2W 470R 5 T amp R RES _47N 100V 10 CAP T amp R RAD 2 FLM 1 4W 470R 5 T amp R RES _47N 250V 10 CAP RAD POLYFILM BULK 1 4W 620R 5 MINI T amp R RES 68N 100V 5 CAP T amp R RAD 2 FLM 1 4W 820R 5 T amp R RES _B2N 100V 5 CAP T amp R RAD 2 FLM 1 AW 1K 5 T amp R RES 100N 100V 5 CAP T amp R RAD 2 FLM 1 4AW 1K5 5 T amp R RES 100N 250V 10 CAP BLK RAD POLY FLM
24. 2005 PC 6793 PC 6795 FIX BREAKAWAY AND RTE NEAR 55 7 17 2005 9 00 GT FORCE UPDATE PADS REQUIRED TRACE CHANGES 8 R94 4849 gt 4796 180K REPLACED LEAD SIZE PARTS 9 12 06 10 00 PC 7125 HG RCA JACKS 3914 TO 6541 10 MAY 23 06 PC 7091 HG 3522 SWITCH HOLES 0 031 TO 0 040 12 D N 13 D V N CBE EBC ECB GDS TO 92 TO 92 TO 126 TO 220 78XX 79XX IGO GIO TO 220 10220 YCV80 AC WIRES OCT 2001 U May 2003 0 2 Go LON w BROWN RED BLUE GREE From Pwr 8 From Input Section 26 oO K j JF a p YCV80 AC CE WIRES OCT 2001 May 2003 OUTPUT TUB D g q BLACK wi mog GREEN RED too ETES GREE m GREEN 5 co aS RED A Dao it OS oe 2 a Nu 2 From Pwr Sup x 8 z3 T 6 5 a 7 a From Inp m LL Section BLK SR N 26
25. 628 1M Sue M602 PCB DATABASE HISTORY M602 Boy 9 RYSE D6 1871 1870 BISENS AT TMODEL S YCV80 MODEL S YCV80 8 eue ows 4 4 2 2 2206 4 V3 A R68 5 PENTODE DATE VER DESCRIPTION OF CHANGE DATE VER DESCRIPTION OF CHANGE GND GNG 22N 300v Taw 4 R60 2001 05 08 1 00 0 First Proto 1 NOV 18 2002 7 00 1 VeA 20R ap 2 2001 06 05 1 00 1 Remove cutouts for BE tube sockets move ribbons cabs SHORTS H B1SENS FLMP 3 to line change shearing to routing 3 NOV 01 2004 8 00 PC 6728 TUBE LABELS UPDATED TO V1 TO V7 GT ces 4007 R137 100V 3682 4 20010705 1 00p2 Moved Send and Return pots out 0 075 4 JAN 04 2005 8 10 PC 6789 011 012 013 014 1N5408 TO HER508 HG 2500 4 VAW 3 Brn 14 mB Added Skrn outline to BE tube sockets 5 JAN 06 2005 ADDED Z437 HEATSINK GT ae Ws 6 20010813 1 00 Value changes to tweak sound 6 15 2005 PC 6793 PC 6795 FIX BREAKAWAY AND RTE NEAR 5 ay ows EN SCREEN 7 20010920 2 00 Add C166 10N across R122 7 17 2005 9 00 GT FORCE UPDATE PADS REQUIRED TRACE CHANGES 18138 S R139 z 51V0 136 LINE_IN 8 Move 93 47 be across R2 8 R94 4849 gt 4796 180K REPLACED LEAD_SIZE PARTS KIS6K 4 36 69 1000F D9 gM Rise TAR J6 9 Add R160 10K from to top of P13 9 MAY 12 06 10 00 PC 7125 HG RCA JACKS 3914 TO 6541 cA
26. 7 00 1 VeA 20R ap 2 2001 06 05 1 00 1 Remove cutouts for BE tube sockets move ribbons cabs 3 SHORTS H B1SENS FLMP 3 to line change shearing to routing 3 NOV 01 2004 8 00 PC 6728 TUBE LABELS UPDATED TO V1 TO V7 GT ces 4007 R137 100V 3682 4 20010705 1 00 2 Moved Send and Return pots out 0 075 4 JAN 04 2005 8 10 PC 6789 D11 D12 D13 D14 1N5408 TO HER508 HG TON 25 4 VAW 3 Brn 14 mB 5 Added Skrn outline to tube sockets 5 JAN 06 2005 ADDED Z437 HEATSINK GT ae wy 6 20010813 1 00 Value changes to tweak sound 6 APR 15 2005 PC 6793 PC 6795 FIX BREAKAWAY AND RTE NEAR 5 ay oie EN SCREEN 7 20010920 2 00 Add C166 10N across R122 7 17 2005 9 00 GT FORCE UPDATE PADS REQUIRED TRACE CHANGES 18138 S R139 z 51V0 136 LINE_IN 8 2 Move C93 47P to be across R2 8 R94 4849 gt 4796 180K REPLACED LEAD_SIZE PARTS KIS6K 4 36 69 1000F D9 gM Rise TAR J6 9 Add R160 10K from wiper to top of P13 9 12 06 10 00 PC 7125 HG RCA JACKS 3914 6541 152828 15 10 Add R159 in series with Q20 output 10 MAY 23 06 PC 7091 HG 3522 SWITCH HOLES 0 031 TO 0 040 190 6 in 11 20011010 2 10 pc 6544 D6 30V gt 33V C19 150N gt 330N C20 330N gt 470N D V N 1879 12 C15 1N gt 470P C17 470P gt 1N R23 R23 470K gt 220K 12 V N GND R81 R83 13 C39 C40 100N gt 10N 13 D V N A1SENS
27. 7 DUAL TRIODE PREAMP TUBE 6L6B 6L6GB OUTPUT POWER TUBE 3428 8 3 18 SJT AC LINE CORD REMOVABLE REVERB CABLE AND UNIT C2324 gt TUBES C AC Cord NOTE Replacement grilles and are only available while the model is in production Grilles amp Support replacements are for CURRENT models only Real Gear Real People Parts Serv YCV80 1v0 xls ftp yorkville com Speaker Enclosure Labeled Components 10 8 30WPGM SPEAKER CELESTION QTY 4 6 85222 RCAPREFABCABLESTEREO 8 8504 CORNER 2 LEGS NOTCED LIP NICKEL PLATED __ 9 8522 RUBBER BUMPER WITH WASHER SMALL 10 0 STRAP HANDLE NICKEL COVERS ROUND PUSH BUTTON 1 4 BLACK 18 3450 amp 3450NUT 1 4 ALL GOLD PC MNT JK SKT XLR MALE PCB MT HORZ MTHOLE V SNAP SPRING RETAINER FOR OUTPUT TUBE 12AX7 DUAL TRIODE PREAMP TUBE 24 668 66 OUTPUT POWER TUBE 8 3 18 SJT AC LINE CORD REMOVABLE Yorkville Traynor Guitar Series AC Cord TUBES NOTE Replacement grilles and are only available while the model is in production Grilles amp Support replacements are for CURRENT models only Real Gear Real People Parts Serv YCV80Q 1v0 xls ftp yorkville com Speaker Enclosure MODEL TYPE YS1034 Block Diagram for YCV8SO0 IYCVS0Q0 DESIGNED AND MANUFACTURED BY YORKVILLE SOUND Effects Send EQ TA Ru sti O00 Inp
28. E EH EE EL Em TS Ed _ ss LE FO x ao a 0 FA OC TAB al SUIDE O M 2 144 C E RON SWCH c81 Q 4 OOs D TAA ser Lu HS O 8 BLK O 275V X N ETCH GUIDE Ee LINE IN 22 2 C82 WHT gt P10 FT SWITCH M602 1 3 ZQ0H00 Z OLY 24040012 ETCH GUIDE Pa N se 789 89 2 OOF 316 Lite gt 1 S f A dz 2 8 Does 5001 ery sx _ 801 9014 Lx SG 601 EA eq Zz eeru Z 001 gt ama LTA 1_ 5 SOLE Dis c79 C74 SPKR 8 J YCV80 Q xd 10V00 C73 C80 W1 6989895554 W16 9 W30 3610 a Tex g trys 2 085 wow CS gt 299 CS 1 s sra HEADPHONES LINE OUT Pcb Mech M60210V00 Top Assy M60210V00 REV Z081 J voy 9027 Te aay 8b 964 MHOOL gt Cr gt amp SIG J10 1799 SY REV SND 814 a SX
29. In series WI output 1 11 2001 1010 2 10 pc 6544 D6 30V gt 33V C19 150N gt 330N C20 330N gt 470N PC PENDING CHANGE Devices 12 15 1N gt 470P 17 470P gt 1N R23 R23 470K gt 220K PC 13 C39 40 100N gt 10N 3796 MODEL S Ycva0a 7 us ee 12206 T0 PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY 5 NOV 302001 2 30 PC 6475 REPLACE R122 C87 Q21 WITH D6 D22 D23 D24 BIV ZENER IN SERIES O Re EE ETON PARN u 6 JAN 17 02 3 00 PC 6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS Hall pee 7 FEB 26 02 400 PC 6512 D11 12 13 14 MR854 1N5408 gt 8 D V NEW PADS FOR TABS RCA JACKS oe it 9 APE 10 2002 5 00 new pads and holes for 3921 jack Be Gain 4495 se N 10 APR 2902 C15 MOVED ADD JUMPER X64 dd 7 11 JUN 26 2002 5 10 PC 6541 R124 100K TO 47K ea lu ia 12 JUL 05 2002 6 00 PC 6544 MOVE TRACES RE SLD BRDGING as oe i 13 SEP 03 2002 610 PC 6563 R124 47K TO 100K D25 TO JMP se Bupa M602 P4 P9 VOLUME 4425 8430 N MODEL S YCV80a 2 i N STYLE_P32 STYLE_P29 DATE VER DESCRIPTION OF CHANGE R F N 1 NOV 18 2002 7 00 MOVE D11 D12 D13 D14 TO ELIMINATE 2 1 SHORTS IRF830 3 NOV 01 2004 8 00 PC 6728 TUBE LABELS UPDATED TO V1 TO V7 GT MJE340 4 JAN 04 2005 8 10 PC 6789 D11 D12 D13 D14 1N5408 TO HER508 HG MPSA06 5 JAN 06 2005 ADDED Z437 HEATSINK GT BC550C MPSA56 6 APR 15
30. N PH TYPE A JS500 BC550C TO92 NPNTRANT amp R TB ROUND PUSH BUTTON 1 4 BLACK 1 4 20 X 1 5 16 TRUSS PH MS JS500 BC560C 92 PNP TRAN T amp R TB BUTTON KNOB FLAT GREY YORKVILLE PRODUCT SCHEMATIC MPSA06 92 NPN TRAN T amp R TA 8 3 18 SUT AC LINE CORD REMOVABLE SNAP IEC PWR SOC W 250TAB FOR 060 MPSA56 92 PNP TRAN T amp R TA YCV40 LOGO EMBOSSED ALUMINUM 5 SPACER ID 171 OD 25 912 500 A AION MJE340 T0126 NPN TRAN TG YORKVILLE PRODUCT MANUAL 1 2 PLASTIC HEX SPACER 6 IRF830 TO220 MFET TN YORKVILLE WARRANTY CARD 2 YR UNLTD 3 4 PLASTIC HEX SPACER 4 TLO72CP IC FET DUAL OP AMP 12 CIR CABLE HOLDER 098 12 8R 80WPGM SPEAKER CELESTION 4N35 OPTO COUPLER 9 CIR CABLE HOLDER 098 3 8 1D FLAT WASHER _47P 100V 10 CAP T amp R BEAD 6 32 KEPS NUT ZINC 3 8 INT TOOTH LOCKWASHE ZINC 220P 100V 2 CAP T amp R RAD CER 2 NPO 1 4 20 CAGE NUT C79 88142027 6 FLAT WASHER NYLON 330P 50V 10 CAP T amp R BEAD NP ELASTOMER PAD TSIL 1 0X0 8 8 FLAT WASHER JS500 470P 100V 5 CAP T amp R RAD CER 2 NPO TO 220 PLASTIC TRANSISTOR INSULATOR 10 FLAT WASHER FOR 3 16 BOLT 470 50V 10 CAP T amp R BEAD NP 22AWG STRAN TC WIR JMP DPDT PUSH SW PCMT H BREAK B4 MAKE 470P 250V 20 Y2 CAP DISC T amp R 22AWG SOLID SC WIR T amp R JMP DPDT MINI PC VERT SNP ALT 680P 100V 5 CAP T amp R RAD CER
31. Oct 26 05 JEWELED PILOT LAMP AMBER REG 1 YCV80Parts List 4 8 2004 72 RCA PREFAB CABLE STEREO YS Description Qty IYS Description Qty Description 6 32 X 5 16 PAN PH MS JS500 RED 3MMLED 1V9 20MA 4SPCER T amp R RCA SNGL PCB MT HORZ 6 32 X 3 8 PAN PH TAPTITE JS500 RED 5MM LED 1V5 20 HIGH EFF XLR MALE PCB MT HORZ MTHOLE V SNAP 6 32 X 3 8 FLAT PH TAPTITE BO 4 HEA YEL 5 LED 1V5 20MA HIGH EFF EYELET SMALL 0 089 OD PLATED 6 32 X 1 2 PAN PHIL MS ZINC CLEAR YEL LED 1V9 20MA 4SPCER T amp R LOWPROFILE FUSEHOLDER 1 4 BUSSMANN 6 X 5 8 PN PH TYPE A ZN GRN LED 1V9 20MA 4SPCER T amp R 3 0 AMP SLO BLO 25X1 25 FUSE 8 X 1 PAN QUAD TYPE AB B O 1N4148 75V 0A45 DIODE T amp R 10 0 STRAP HANDLE NICKEL COVERS 10 32 X 1 4 PAN PH TAPTITE JS500 1N5408 1000V 3A0 DIODE 10 32 T NUT ee ar O 10 32 X 1 2 QDX PH TAPTITE JS500 1N4007 400V 1A0 DIODE T amp R RUBBER GROMMET 2183 034 BLK 10 X 1 2 PAN PH TYPE A ZINC 1N5240BRL 10V0 OW5 ZENER 5 T amp R NYLON SPRING CLAMP 10 X 3 4 PAN PH TYPE A BLACK OXIDE 13052628 51 0 OW5 ZENER 5 T amp R 4 NYLON CABLE TIE 10 32 1 1 8 FLAT PH MS JS500 MC7915CT 0220 15VOREG V2 YCV40 CHICKEN BEAK KNOB 10 32 X 1 1 4 QD MS JS500 BLACK MC7815CT TO220 P 15V0 REG V1 CORNER 2 LEGS NOTCED LIP NICKEL 10 X 1 1 2 PA
32. TRIODE_HCT V2 A jok R120 R56 R86 2x TRIODE ER TOO 1840 3 Te Bo ok zo Slime C34 aN 7 HBSK TETS an Fov hi 4 M VOLUME a 3 R45 TAN 1 54 Riis 5 NC EN an TAW BC550C GND 24K 7 BRIGHT gt ar as R34 YEL a A B LIN U2 B da 5 ST A COMCOM 5101 t 1082 CH SELECT gt CH SELECT 4497 o1 R90 5 10K r 35225 020 c25 SE rs Mel z 12 330 tev 7 Ree EFFIRETURN a NO NO OV S2 A 3522 352252 MIEFF RETURI TLO72 TAN TARKXS 44 OV 7 Qno NO 0125 6 R17 TAN I au ASV GND NE 24K TANT ca5 220K 220 10 aay 833 COM REV SND L 9 c38 RCA CB MT HORZ K901 ol LA 2507 GND TOON 100V tr 2 rj 4148 z R155 9 7 5 100V 00K ES R39 a T er lie xi air 12 e EUX 1 47 6 SIRO Le M TREBLE NT R29 R fr Tacseoc Eo R91 R114 g ame NC ee 016 H gpr ae c13 ds T si 274 2507 lt qo 5102 FN 100V N7 187 COM 80 7095 EL IND 400 6 A 500K C24 ce R150 NOG ais ee iss Ann sx l V1 A R25 V2 B tra 500 BC550C 218151 N TOON 10 c17 22K 96 TAN MIBASS 4425 S 100K ROS 22 TRIODE HET 7 2x TRIQDESHCT co TA 58 00 f
33. UCTIONS RELATIVES AU RISQUE DE FEU CHOC ELECTRIQUE OU BLESSURES AUX PERSONNES AVIS AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE N ENLEVEZ PAS LE COUVERT OU LE PANNEAU ARRIERE NE CONTIENT AUCUNE PIECE REPARABLE PAR L UTILISATEUR CONSULTEZ UN TECHNICIEN QUALIFIE POUR LENTRETIENT Read Instructions The Owner s Manualshould be read and understood before operation of your unit Please save these instruc tions for future reference Packaging Keep the box and packaging materials in case the unit needs to be returned for service Warning When using electric products basic precautions should always be followed including the following Power Sources Your unit should be connected to a power source only of the voltage specified in the owners manual or as marked on the unit This unit has a polarized plug Do not use with an extension cord or receptacle unless the plug can be fully inserted Precautions should be taken so that the grounding scheme on the unit is not defeated Hazards Do not place this product on an unstable cart stand tripod bracket or table The product may fall causing serious personal injury and serious damage to the product Use only with cart stand tripod bracket or table recommended by the manufacturer or sold with the product Follow the manufacturer s instructions when installing the product and use mounting accessories recommended by the manufacturer The apparatus should not be
34. ae EEE e am ee RER Ge e eas Ses PA m hp p SED Sas RSD aw a ae EEE EE RE CP eee PES gt img iii ie SSE Sra gt qn ab Wee a ve a PR _ SE gp ER D aay aS a R TEE E SSS ne Gai ea SEP LSS a EE ES OD RSS ESS SSS SSS ey SS ee eee EES e m anes 2S SS SS EI a Sa SSS aa ee gee ss A ee Ta Gp Va SS aaa Con re EEE aa era gt AD a a Le Say gt RSE gt gt gt SR a EET ap EB SSS a a ED Yorkville 2 YCV80 YCV80Q TYPE YS1034 WEB ACCESS http www yorkville com WORLD HEADQUARTERS CANADA U S A Yorkville Sound Inc 4625 Witmer Industrial Estate Niagara Falls New York 14305 USA Yorkville Sound 550 Granite Court Pickering Ontario L1W 3Y8 CANADA Voice 716 297 2920 Voice 905 837 8481 Fax 716 297 3689 Fax 905 837 8746 Yorkville Quality and Innovation Since 1963 Printed in Canada Manual Service YCV80 YCV80Q 00 1v8 pdf IMPORTANT SAFETY INSTRUCTIONS CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR INSTRUCTIONS PERTAINING TO A RISK OF FIRE ELECTRIC SHOCK OR INJURY TO PERSONS CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL INSTR
35. p R RES A SNAP ON 0 843 INSULATING BUSHING 1 4W 113K 1 T amp R RES TRIM CLIP PLATED BLK ZINC 1 4W 180K 5 T amp R RES RUBBER BUMPER WITH WASHER SMALL 2 0W 220K 5 10MM BODY T amp R RES CLIP 205 187X032 18 22AWG DISCO INS 1 4W 220K 5 T amp R RES CLIP 250X032 18 22AWG DISCO INSL 1 4W 249K 1 MINI T amp R RES CLIP 250X032 14 16AWG DISCO INSL 1 4W 470K 5 T amp R RES CLIP 205 187X020 18 22AWG DISCO INS 1 4W 680K 5 T amp R RES CLIP 205 187X020 14 16AWG DISCO INS 1 4W 1M 5 T amp R RES RING TERMINAL 16AWG WIRE amp 8 SCREW wo ni Rs DIR BR Dion al Rs Dir A a pf ola A a a a ap pf alo po a a pf a a oof sn fo a a fw a ola alo rl ww Alp lo AlN aj ajaj aja 1 AW 2M2 5 T amp R RES 250 MALE PCB TAB REEL RELAY 2 01AMP DC24 015MA PC S 280 PLUG NEUTRIK NYS224 ACC 4EB3C1B LONG REVERB D Oo D CO 1 4 JCK PCB MT HORZ 4 40 X 5 16 PAN PH MS JS500 1 4 PCB MT HORZ GOLD TR_ NIO 4 X 5 16 PAN QUAD TYPE A JS500 BLK N 1 4 JCK PCB MT VERT STER RT SWT 6 32 X 1 4 PAN PH TAPTITE JS500 Labeled Components 12 80WPGM SPEAKER CELESTION 6 a522 72 RCAPREFAB CABLE STEREO 8 _ 8504 CORNER 2 LEGS NOTCED LIP NICKEL PLATED _ 9 8522 RUBBER BUMPER WITH WASHER SMALL ROUND PUSH BUTTON 1 4 BLACK 12AX
36. pl tement les trois lames Des pr cautions doivent tres prises afin d eviter que le syst me de mise la terre de l appareil ne soit d sengag Risque Ne pas placer cet appareil sur un chariot un support un tr pied ou une table instables L appareil pourrait tomber et blesser quelqu un ou subir des dommages importants Utiliser seulement un chariot un support un tr pied ou une table recommand s par le fabricant ou vendus avec le produit Suivre les instructions du fabricant pour installer l appareil et utiliser les accessoires recommand s par le fabricant Il convient de ne pas placer sur l appareil de sources de flammes nues telles que des bougies allum es Lappeil ne doit pas tre expos a des gouttements d eau ou des claboussures et qu aucun objet rempli de liquide tel que des vases ne doit tre plac sur l appareil Assurez que lappareil est fourni de la propre ventilation Les dispositifs marqu s d une symbole d clair sont des parties dangereuses au toucher et que les c blages ext rieurs connect s ces dispositifs de connection ext rieure doivent tre effectiv s par un op rateur form ou en utilisant des cordons d j pr par s Cordon d Alimentation Evitez d endommager le cordon d alimentation N UTILISEZ PAS L APPAREIL si le cordon d alimentation est endommag Service Consultez un technicien qualifi pour l entretien de votre appareil safety 4v3 eps
37. ut Effects Return Mono inch IE Ch 2 i l Volume TA V a i D IHeadphone Out 0 dB l E Speaker Emulator D I Out CNVVTTT ER em v Pre Amp Channel Channel Out Amp In Select Select K1 EQ K1 De Treble Bass Mid Ch 1 Volume Reverb External YCV80Q Speaker Configuration Drive Reverb Speaker Out Accutronics O 900000 A 4EBC1B Reverb Rtn Internal V Speaker Out R ns nn nn a ns 1 V Footswitch Master Volume wi Channel Select SPLITTER r PREAMP 12AX7 r PER 9881 5881 5881 5881 V7 V6 V5 V4 DISCONNECT POWER WHEN D BRANCH L APPAREIL AVANT REPLACING TUBES DE REMPLACER LES LAMPES BLOCK DIAG ycv80 1v40 ai A a o EE e O a o S a
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