Fender Blues Junior III Service Manual Download Page 7

BLUES JUNIOR™ III

 

    (This is the model name for warranty claims) 

 

 

 

*

  Non-serviceable part.  Replace complete parent assembly.  See PCB EXCHANGE POLICY section above. 

 shaded  

  Unique Fender® part.  Order directly from the FMIC Parts Department. 

  

*

  Access to this part or assembly is controlled. Please contact the FMIC Customer Service Department. 

 

 

**

  Safety Requirement part.  Replacement must match Safety Agency…

–Value,

 if specified 

–Type,

 if specified 

–Approval Mark(s)

 if on part. 

  

**

  Both a unique Fender® part and a Safety Requirement part as defined above. 

PARTS LIST: 

PCB ASSEMBLY

 

QTY.  PART # 

DESCRIPTION 

REFERENCE DESIGNATION 

0029005001 

RES CF 1/4W 5% 2k LL 

R43 

0024977001 

RES CF 1/4W 5% 4.7k LL 

R26 R40 

0025942001 

RES CF 1/4W 5% 7.5k LL 

R25 

0026510001 

RES CF 1/4W 5% 9.1k LL 

R29 

0024981001 

RES CF 1/4W 5% 10k LL 

R2 R7 R15 R42 

0024987001 

RES CF 1/4W 5% 22k LL 

R52 R57-58 

0024989001 

RES CF 1/4W 5% 33k LL 

R21 R51 

0024995001 

RES CF 1/4W 5% 68k LL 

R38 

0028153001 

RES CF 1/4W 5% 75k LL 

R27 

0024997001 

RES CF 1/4W 5% 100k LL 

R9 R11 R46 

0028955001 

RES CF 1/4W 5% 130k LL 

R6 

0025059001 

RES CF 1/4W 5% 220k LL 

R20 R31-32 R41 R44 

0025828001 

RES CF 1/4W 5% 430k LL 

R18 

0025069001 

RES CF 1/4W 5% 1M LL 

R1 R22-23 R37 R59 

0025829001 

RES CF 1/2W 5% 150ohm LL 

R56 

0031065001 

RES CF 1/2W 5% 91k LL 

R28 

0025116001 

RES CF 1/2W 5% 100k LL 

R3 R8 R16 R30 

0041741001 

RES MOX FP 1/2W 5% 47ohm LL 

R54-55 

0028580001 

RES MOX FP 1/2W 5% 100ohm LL 

R35-36 

0031067001 

RES FILM 1W 5% 750ohm LL 

R50 R53 

0027349001 

RES FILM 1W 5% 10k LL 

R48-49 

0041258001 

RES MOX 2W 5% 2.2k LL 

R47 

0028091000 

SWITCH PUSH SLFLK 

S1 

0048451000 

BUTTON PUSH SWITCH OFF WHITE 

@ S1 

0029167000 

TUBE SOCKET 9 PIN PCB MOUNT 

V1-5 

REF  0038519000 

STANDOFF M/F 4-40 x 1/4L 

 

REF  0097360000 

NUT HEX 4-40 EX LOCK 

 

REF  0047040000 

STANDOFF NYL PCB SNAP 1/2" BLK 

 

0014689003 

XSTR N-CH JFET J111 TO-92 

Q1 

 

 

 

 

 
 
 

PARTS LIST: 

CHASSIS ASSEMBLY

 

QTY. 

PART # 

DESCRIPTION 

REFERENCE DESIGNATION 

0047560000  BRACKET TUBE RETAINER PRO JR. 

@ OUTPUT TUBES 

0026116000  BUSHING SR .500X.063X7/16 BLK 

(@ REVERB CABLE) 

0026038000  BUSHING SR .625x.062x37/64 BLK 

@ POWER CABLE 100-120V ONLY 

0010401000  BUSHING SR .625x.125x37/64 WHT 

@ POWER CABLE 230-240V ONLY 

0018022000  BUSHING SNAP 5/16x17/32 BLK 

@ OUTPUT XMFR WIRES 

0026541000  **CORD PWR ASSY W/.250 TAB 120V 

120V UNITS ONLY 

0038602000  **CABLE ASSY PWR AUST .250 TAB 

240V AUST UNITS ONLY 

0040993000  **CABLE ASSY PWR 5A U.K. .250 TAB 

230V UK UNITS ONLY 

0033331000  **CABLE ASSY PWR 220/240v 

230V EUR UNITS ONLY 

0048463000  **CABLE ASSY PWR .250 100v 

100V UNITS ONLY 

0048827000  **FUSE QA 1-1/4x1/4 250v 2A 

100-120V UNITS ONLY 

0020789000  **FUSE QA 20mmx5mm 250v 1A 

230-240V UNITS ONLY 

0079630000  **GROMMET RUBBER .38 ID X .500 MTG 

@ OUTPUT TUBES 

0016352000  NUT HEX 3/8-32X3/32 TK NI 

(@ SPEAKER & FOOTSWITCH JACK) 

Summary of Contents for Blues Junior III

Page 1: ...TENTION WARRANTY SERVICE PROCEDURES The Blues Junior III Amplifier is considered to be field serviceable to the component level As such stuffed PCB Assemblies are not readily available for this unit A...

Page 2: ...f Fender Musical Instruments Corporation Parts marked with two asterisks indicate the required use of that specific part This is necessary for RELIABILITY and SAFETY requirements DO NOT USE A SUBSTITU...

Page 3: ...0Hz UK 2230504000 230V 50Hz ARG 2230505000 230V 50Hz EUR 2230506000 100V 50Hz JPN 2230507000 220V 60Hz ROK 2230509000 Power Requirement 180W Power Output 15W RMS into 8 ohms 5 THD 1kHz Power Amp Sensi...

Page 4: ...ear of the cabinet 3 PCB ASSEMBLY REMOVAL is accomplished by removing the following items six 6 knobs six 6 knob spacer bushings one 1 input jack nut and washer and seven 7 PCB mounting screws Remove...

Page 5: ...nal feeds the push pull EL84 power amplifier REVERB U1B makes up a typical solid state reverb drive circuit U1A is the reverb recovery or sense circuit which drives the REVERB control R45 The reverb s...

Page 6: ...pF 500V 10 C17 1 0020909000 CAP CD 47pF 1000V 10 C14 1 0020917000 CAP CD 250pF 1000V 10 C5 1 0017620000 CAP CD 1500PF 1000V 10 C9 2 0024823000 CAP MPF RDL 01uF 400V 10 C11 C29 4 0024833000 CAP MPF RDL...

Page 7: ...LL R28 4 0025116001 RES CF 1 2W 5 100k LL R3 R8 R16 R30 2 0041741001 RES MOX FP 1 2W 5 47ohm LL R54 55 2 0028580001 RES MOX FP 1 2W 5 100ohm LL R35 36 2 0031067001 RES FILM 1W 5 750ohm LL R50 R53 2 0...

Page 8: ...7040000 STANDOFF NYL PCB SNAP 1 2 BLK MAIN PCB 1 0036570000 SWITCH TOGGLE DPST W NUTS POWER SWITCH 1 5550112406 TUBE 7025 12AX7A 12AX7WC GT 12AX7 R V1 PREAMP TUBE 2 5550113208 TUBE 7025 12AX7WC RUSN F...

Page 9: ...oval Mark s if on part shaded Both a unique Fender part and a Safety Requirement part as defined above PARTS LIST END ITEM ASSEMBLY QTY PART DESCRIPTION REFERENCE DESIGNATION 1 0079730000 PANEL REAR B...

Page 10: ...e for warranty claims Service Diagram List Service Diagram Schematic Blues Junior III Amplifier Service Diagram PCB Assembly Blues Junior III Amplifier Chassis Assembly Blues Junior III Amplifier End...

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Page 13: ...1 PANEL TOP BLUES JUNIOR III 1 1 CHASSIS BLUES JUNIOR III MUSICAL INSTRUMENTS AND IS SUBMITTED TO YOU IN CONFIDENCE AND SHALL DO NOT SCALE DRAWING TITLEBLOCK REVISION 1 8 N A RESEARCH AND DEVELOPMENT...

Page 14: ...X 2 1 SPKR 12 INCH 8 OHM STL CER 1 1 CABINET ASSY BLUES JR III SERVICE MANUAL DOCUMENT MATERIAL S M E OPT 10 25 2010 FENDER MUSICAL INSTRUMENTS CORP FILE NAME D TITLE PART NUMBER SIZE MGR DIR P E DATE...

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