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Includes AC/DC voltage measurement guidance (ground-referenced), control position and signal test conditions, transformer and switch locations, component value/rail annotations, and troubleshooting-oriented notes such as tolerance ranges and expected operational voltages. Revision history and drawing metadata are also 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information does the diagram provide for servicing the Blues Junior?","Question",{"text":112,"@type":113},"It provides a schematic and wiring/service reference including revision history, component interconnections, transformer/switch locations, and detailed notes for measurements and expected voltages.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How are AC and DC voltage measurements defined in the document?",{"text":117,"@type":113},"DC and AC measurements are specified as being taken with respect to ground using the named test points, with additional guidance such as input impedance and test signal conditions.",{"name":119,"@type":110,"acceptedAnswer":120},"What setup details are included for testing signal and controls?",{"text":121,"@type":113},"The document describes the input signal level and frequency, pairs used for the test, and control positions (e.g., settings for volume/reverb and other controls) to reach stated output conditions.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},655078,1792959360,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":19,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":52},962094509873,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","2  \n1  \n           5  \n           4  \n           3                                \n           6  \n           7  \n\n| REVISIONS   |  |  |  |  |\n| --- | --- | --- | --- | --- |\n| ZONE   | REv.   | DESCRIPTION   | DATE   | APPROVED   |\n|  | A   | RELEASED PR295   | 3-3-95   | FM   |\n|  | B   | EC 1476   | 5-15-95I   | FM   |\n|  | C   | EC CR59   | 10-29-96   | FM   |\n|  | D   | EC 2214   | 27-29-98   |  MDW   |\n\nFOR AC VOLTAGEMEASUREHENTS,APPLYZZ1.36Vac1 kHz SIGNALTP10D10mVac1.35VacC16J1TP1R3108Kn543mVacTP6R10.922μF100Kn600VTP3W          R4012AX7A12AX7AZ430KnR1S1INPUT多10Kn6V1Bd022μF(690V66mVac1V1AR6C25216mVacc35-15V7TP510DKn250pFTP91500oFFAT”SWITCH  21kYR411kVSIB-14.4VdaTP28C2S¹AP92kaGRN、出*PBiRP学2493         R395BKnB100Kn5T.022μFR8WMASTER250Kn10AC³J3WHTPP15*RED2k。   16V  羊.skaTREBLEhn1eAR5VOLUME138Kn二c4R11。612AX7AV2BR42T22μF1.5Kn3       7   220Kn25VR28P161.27Vdc250KnB不BM9TF0oTP17*  R9TP4100Kn                          器  .GRNP10米.C3141.3VacR531MaTP1E106VL              C+15VSEE NOTE 9REVERB PANSEE NOTE 9*P13Te22μF388mVacP/N 028055191mVacSEE NOTE 9c26。1.55Vac12AX7ARknT1DUTPUTC68  3U1ATP22*P3TP2363mVac.0033μFR56TP126V3B2;TRANSFORHER049969*P142.64Voc.01μFc20330pF2dTLO721P1WHITETP24R48C1?51100V470Kn7R21M54.4Vdo22BKn4R25REDoJ850KrBTP1385.015μF品p1@n.ACP3BLUE.GREENCP14TP2027mVac1kVTP2143Kn4R46c22R47U1B120VREVERB品WJ4TIPXCP24.7Kn2200pF70Kn-15VP2R44Sia100V6dTLD727     R13R1433Kn1MnB25-10.7VdoREDSLEEVE\u003C4※R50C24上c72=超2nTP38R24410nCP1BLACKCP1558 OHN SPEAKER120KnSHIELD330KnT10pF.1μFR23.V3A100V[250Vi2AX7A1     13Kne4.3wBROWNP/N 837617R45R261647n7.5KnCR10OUTPU TEST![4.7Kn2KoR49140mVacC5TP15c9JB22μFc21.1μF6BQ⁵/号L84E         R300010.25 Vrme INTO AN 8n RESISTIVE LOAD,5X T.H.D.,AT 20 mVrm 1kHz INPUT SIENAL.120 Vac,60Hz LINE VOLTAGE.22μF-26.7Vdc250VR19(1.48Yac)25V43TP26180KnTP1741.3VacALL CONTROLS EXCEPT “VOLUME”ANO “REVERB”CW.10BV1.42VocWTP19\"REVERB”IS CCW.\"FAT\"SWITCH OFF,\"VOLUNE\"TP14ADJUSTED TO REACH 18.25 Vrme AT OUTPUT.  \nD  \n1.27VdcTP8  \nBASSC13.022μF  \nc19T033μFR38R171.5Kn180mVacTP11K VIOS.1KaC8  \nCR11R3000  \n1.26VdeTP37  \n1.35VacTP16V46BQ5/EL847  \nC  \n26.7Vdo-15Vdc15VdcTP25TP27TP28  \n20.5VacCR5TP29IN4003。  \nT2+15VT21WBDOMESTIC POWERTRANSFORMERc-CRBEXPORT POWERc27P/N 049967470μFR581N4744AT220μFTRANSFORMER750n25V049968BRNCP165BV1WCRZ1N4003  弱qM--15VIN474488ro³CP16BRN导438E25VC34S250VTD1μF“ON-OFF”SWITCHF1CP1725267VdcCP?→TP34120V:F2ABRN138.5Voc)329Vdc387Vdc242Vdc BRN  CP17 TP32  TP33 TP35CP9BLACK〔BROWNS1AS2A→PZ鸟CP5BLACKBLACK   GREENXF1REDCP13         TP31CR1CR3BREDCP13(GRN/YEL)100V:F2A1N5862IN5862R55R33knEXPORT TRANSFORMER10Kn18KnWIRING DIAGRAM230V:F1AmS1B s2B240V:FiA32CR2MHITE→》  WHITE     638V   CP12          1N5862ne2WW--1W156388YH560YHz5838HC17C²10CPBCP4CP⁴REDS2BCPICP11《CP12(BLUE)RED           450V      CP11S2BCPG《CP18CP6ICP6S2BGRN  \nB  \nN  \n10F 1  \n133HS  \n3.3VocNOTES:1 Dc YLTAGE MEASUREHENTS ARE MITH RESPECT TO GROUND USINGTP36GRN《CP10i₂YVAF,6H LPNE VoLEAGNC,EcONTRδLGNcw,PPASWITCH OFF.2 AC VOLTAGE MEASUREMENTS ARE WITH RESPECT TO GROUND USINGGRNCP18P12P6V5V4V3V2V1AA.DVM_OF_1.Mo MINIHUM INPUT_IMPEDANCE,CONTROLS AT 50X ROTATION,GRN549S12AX7ABLKEXCEPT\"REVERB”IS CCw.\"FAT\"SWITCH OFF,10 mVrme 1 kHz SIGNALTW PAIRCR44LD1APPLIED ATJ1.REVERB PAN CONNECTED.448VzA3 VOLTAGES MAY VARY±20x.CP10BRN545[45[452R344 COLOURS IN PARENTHESIS ARE FOR 236V UNITS.GRNP18P5150n5 ALL RESISTORS 4 WATT UNLESS OTHERWISE NOTED.W零3MUSICAL INSTRUMENTS6 ALL CAPACITORS 488V UNLESS OTHERWISE NOTED.3.3VocFP2621 Reseorch Drlve       Corono,CA 917e USA  7 LAST INSTANCES:C35,R58,CR12,P18,CP18,U1,J3,LD1,S2,T2,V5,F1,TP37.8 X WITH INSTANCE NAME IS A SOLDER TERMINAL EYELET.DATE:20C9 VOLTAGES AT TP22,TP23,AND TP24 MAY VARY FROM PAN TO PAN.TOLERANCES:1   TITLE:SCHEMATIC DIAGRAMBLUES JUNIOR  \n849302000  \nCP4,  \nR  \nDATABASE FILE!Z295SR2.DBFPROPRIETARY  \nCHECKED BY:DATE:n6立   \nTP7  \nD  \nSIZE]  \nDRAMNI R.MURRRY DRWTM  \n10办IS A CHASSIS GROUND.  \n34  \nx.X  \n049301  \nNEXT HIGHER A850LY:  \nX.XX  \n11 INSTANCES NOT USED:J2.  \n增.010\"  \nD职i F.ATRO  \n绯，5\"  \nx,X00X  \nCTDr2  \nBLUES JUNIOR  \n姆.58  \nANGLES  ","cbCaitTM832dJpl9","https://ap.wps.com/l/cbCaitTM832dJpl9","pdf",575249,"English","# Schematic Diagram\n## Revisions and Drawing Metadata\n## Wiring Diagram and Component Notes\n## Voltage Measurement and Test Conditions","[{\"question\":\"What information does the diagram provide for servicing the Blues Junior?\",\"answer\":\"It provides a schematic and wiring/service reference including revision history, component interconnections, transformer/switch locations, and detailed notes for measurements and expected voltages.\"},{\"question\":\"How are AC and DC voltage measurements defined in the document?\",\"answer\":\"DC and AC measurements are specified as being taken with respect to ground using the named test points, with additional guidance such as input impedance and test signal conditions.\"},{\"question\":\"What setup details are included for testing signal and controls?\",\"answer\":\"The document describes the input signal level and frequency, pairs used for the test, and control positions (e.g., settings for volume/reverb and other controls) to reach stated output conditions.\"}]","BLUES JUNIOR - Service Diagram - Combined - Schematic Diagram | PDF"]