Gallien-Krueger 400RB series Service Manual Download Page 25

LVL

PART#

DESCRIPTION

QTY

REF. DESIG.

2

031-1227-0

CAP,ELEC,RAD,227,-10%+50%,25V

2

C65,C66

2

031-2335-0

CAP,ELEC,RAD,335,20%,50V

2

C60,C68

2

032-3104-0

CAP,PE,104,5%,63V

1

C2

2

038-0106-0

CAP,ELEC,AXIAL TR,106,20%,16V

4

C11,C72,C82,C84

2

038-2105-A

CAP,ELEC AXIAL TR,105,20%,50V

1

C87

2

051-1002-0

RES,CARBON FILM,1K OHM,1/4W,5%

2

R73,R83A

2

051-1005-0

RES,CARBON FILM,1M OHM,1/4W,5%

1

R4

2

051-1203-0

RES,CARBON FILM,12K OHM,1/4W,5%

7

R1,R13,R34,R38,R42,R47,R83

2

051-1204-0

RES,CARBON FILM,120K OHM,1/4W,5%

1

R15

2

051-2201-0

RES,CARBON FILM,220 OHM,1/4W,5%

2

R62,R75

2

051-2202-0

RES,CARBON FILM,2.2K OHM,1/4W,5%

2

R77A,R88

2

051-2203-0

RES,CARBON FILM,22K OHM,1/4W,5%

2

R31,R58

2

051-2204-0

RES,CARBON FILM,220K OHM,1/4W,5%

2

R19,R21

2

051-3302-0

RES,CARBON FILM,3.3K OHM,1/4W,5%

1

R23

2

051-3303-0

RES,CARBON FILM,33K OHM,1/4W,5%

4

R5,R18,R78,R86

2

051-4701-0

RES,CARBON FILM,470 OHM,1/4W,5%

2

R70,R81

2

051-4702-0

RES,CARBON FILM,4.7K OHM,1/4W,5%

3

R3,R30,R85

2

051-4703-0

RES,CARBON FILM,47K OHM,1/4W,5%

4

R40,R48,R57,R79

2

051-4704-0

RES,CARBON FILM,470K OHM,1/4W,5%

5

R28,R33,R37,R43,R50

2

051-5602-0

RES,CARBON FILM,5.6K OHM,1/4W,5%

5

R27,R44,R51,R56,R59

2

051-5603-0

RES,CARBON FILM,56K OHM,1/4W,5%

1

2

052-0000-0

RES,CARBON FILM 0 OHM,1/4W,5%

9

R9,R12,R32,R52,R54,R64,R77,R75A,R76A

2

070-1513-0

POT,50K-15A,7MM,KNURL,.1W

1

R14-volume

2

070-1514-0

POT,50KB,7MM,KNURL,.1W

5

R36,R53,R63,R67,R89- EQ, master pots

2

070-1522-0

POT,2KB,7MM,KNURL,.1W

1

R76-boost

2

090-0014-0

SWITCH,PP,DPDT,.2A,BREAK/MAKE,PC

4

S1,S2,S3,S4- all switches

2

092-0076-0

JACK S2-BNB,1/4",S-TIP,PC TERM

2

J1,J2- all jacks

2

093-0028-0

HDR,.156X3,VERT,MALE,LOCK

1

P2

2

093-0029-0

HDR,.156X4,VERT,MALE,LOCK,ROUND

1

P1

2

145-0047-E

400RB PREAMP BRD

1

Summary of Contents for 400RB series

Page 1: ...Service Manual 400RB ...

Page 2: ...Table of Contents Operating Instructions 3 Turn On Calibration Procedure 6 Schematics 9 Engineering Change Orders ECOs 16 Bill of Materials 20 ...

Page 3: ......

Page 4: ......

Page 5: ......

Page 6: ...k regulated supplies or 14 5V or 1V 3 Adjust variac to 120V and turn speaker off 4 Set Bias Adjust R14 on 41 board for 5mV across R26 R27 5 Power LED and boost LED should be lit 6 Connect oscillator to input 200Hz 46 dBV 7 Turn on 4 ohm load 8 Adjust volume for slight clipping 2 3 o clock Output 28 Vrms 9 Engage 10dB switch Output becomes 5 7 Vrms Disengage switch 10 Turn boost to 0 Output becomes...

Page 7: ...listen to noise It should be smooth not crackling 4 Change AC voltage range to 1V 5 Noise should measure less than 400mV 6 Engage low cut contour and hi boost Noise 400 mVrms 7 Volume to 0 Noise 100mVrms 8 Boost to 0 Noise 10 mVrms Return knobs to zero switches out ready for burn in ...

Page 8: ......

Page 9: ......

Page 10: ......

Page 11: ......

Page 12: ......

Page 13: ......

Page 14: ......

Page 15: ......

Page 16: ......

Page 17: ......

Page 18: ......

Page 19: ......

Page 20: ......

Page 21: ...00V C216A 1 1 056 330 0 RES CERAMIC WW 33 OHM 5W 10 4 1 056 0500 0 RES CERAMIC WW 5 OHM 5W 10 1 1 080 0012 0 TRANSFORMER 200W 120V Z 4 1 1 090 0008 0 SWITCH ROCKER SPST 4A QUICK TERM 1 1 091 0005 0 FUSE 5A 125V 1 4X1 1 4 SLB 1 1 092 0002 0 JACK SW 11 1 4 O TIP SLDR TERM 3 1 092 0004 0 JACK SW L11 1 4 O TIP SLDR TERM LONG 1 1 092 0011 0 JACK SW L12A 1 4 S TIP LONG 1 1 092 0064 0 Q CON 25 TAB 18 22G...

Page 22: ... 0 CAP 72 APLS SPLINE SHAFT 7 1 100 0103 0 KNOB 72 APLS SPLINE SHAFT 7 1 112 0081 0 BOLT 6 32 1 2 PHP CAD 1 1 112 0101 0 BOLT 6 32 5 8 PHP CAD 13 1 112 0121 0 BOLT 6 32 3 4 PHP CAD 1 1 112 4081 0 SCREW 6AB 1 2 FHP 82 CAD 4 1 112 6001 0 NUT 6 32 KEP LARG SIZE CAD 15 1 112 8060 0 TR BOLT 6 32 3 8 PHP B O 2 1 112 9060 0 TR BOLT 6 32 3 8 FHP B O 24 1 112 9101 0 TR BOLT 6 32 5 8 FHP CAD 2 1 114 0080 0 ...

Page 23: ...TSIDE 1 2 120 0005 0 ALUM 100 49 1 132 0568 0 400RB IILEFTSIDE 1 2 120 0005 0 ALUM 100 49 1 132 0569 0 400RB II COVER 2 2 120 0005 0 ALUM 100 320 1 132 0575 0 400RB II RACK EAR 2 2 120 0005 0 ALUM 100 21 1 150 0012 0 BOX 400 800 1 1 150 0013 0 END CAP 400RB 2 1 160 0002 0 MANUAL 400RB 1 206 0041 C 400RB Power Amp LVL PART DESCRIPTION QTY REF DESIG 2 001 1030 0 LF353N DUAL JFET OP AMP 1 U1 2 010 00...

Page 24: ...2 R28 R29 R32 2 051 5602 0 RES CARBON FILM 5 6K OHM 1 4W 5 1 R2 2 051 5603 0 RES CARBON FILM 56K OHM 1 4W 5 4 R5 R6 R33 R34 2 052 0000 0 RES CARBON FILM 0 OHM 1 4W 5 5 2 054 2702 0 RES CARBON FILM 2 7K OHM 1W 5 2 R17 R18 2 070 0508 0 POT 1K TRIM 6MM SLOT 3W 1 R14 2 092 0066 0 FASTON M PC 250 6 P2 3 4 5 6 7 2 093 0029 0 HDR 156X4 VERT MALE LOCK ROUND 1 P1 2 145 0041 C 400RB POWER AMP BOARD 1 206 00...

Page 25: ...ILM 3 3K OHM 1 4W 5 1 R23 2 051 3303 0 RES CARBON FILM 33K OHM 1 4W 5 4 R5 R18 R78 R86 2 051 4701 0 RES CARBON FILM 470 OHM 1 4W 5 2 R70 R81 2 051 4702 0 RES CARBON FILM 4 7K OHM 1 4W 5 3 R3 R30 R85 2 051 4703 0 RES CARBON FILM 47K OHM 1 4W 5 4 R40 R48 R57 R79 2 051 4704 0 RES CARBON FILM 470K OHM 1 4W 5 5 R28 R33 R37 R43 R50 2 051 5602 0 RES CARBON FILM 5 6K OHM 1 4W 5 5 R27 R44 R51 R56 R59 2 051...

Reviews: