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Table of Contents
- 1 Table of Contents
- 2 Basics
- 3 Input Section
- 4 Effects Loop
- 5 Direct out
- 6 Power Switch
- 7 Fuse
- 8 Maintenance
- 9 Setting up Your Sound
- 10 Specifications
- 11 Setup
- 12 Power Supply and Power Amp Test
- 13 Tones and Filter Test
- 14 Turn on Procedure
- 15 400RB Waveforms
- 16 Indented Bill of Materials
- Download this manual
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Table of Contents
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Summary of Contents for Gallien-Krueger 400RB
- Page 1 Service Manual 400RB...
- Page 2 Table of Contents Operating Instructions Turn On / Calibration Procedure Schematics Engineering Change Orders (ECOs) Bill of Materials...
- Page 6 400RB-200W Bass Amp Turn on Procedure Board #’s: 206-0047-C (preamp), 206-0041-A ( power amp) Model# 400RB all options 8-19-91 Setup Variac on zero, power switch off- connect power cord. Connect either output to load box ( load A). Resistance loads open ( switch in center).
- Page 7 Turn front panel knobs to 10, switches out. Connect front speaker to output and listen to noise. It should be smooth, not crackling. Change AC voltage range to 1V. Noise should measure less than 400mV. Engage low-cut, contour, and hi-boost. Noise < 400 mVrms. Volume to 0.
- Page 21 400RB-II 6/22/99 INDENTED BILL OF MATERIALS *-Level 1 refers to main asy Main assembly numbers are in bold face. Level 2 refers to board pts. Most commonly needed parts are italicized. LVL.* PART# DESCRIPTION QTY REF. DESIG. 010-0012-0 MPSA06 NPN 80V 500MA TO-92...
- Page 22 LVL. PART # DESCRIPTION QTY REF.DESIG. 100-0020-0 BUMPER,ROUND RUBBER,1/2"X.14" 100-0030-0 BUTTON,RECT BLACK CAP - PUSH SWITCH 100-0031-0 WASHER,#4,RECT,TO-220 MGT 100-0032-0 INSULATOR,MICA,56-77-11AP,TO-220 100-0033-0 CABLE TIE - PLT 1M-M,SMALL 100-0037-0 HEAT CLIP,TO-98 100-0041-0 WIRE HOLDER N-4 100-0042-0 HANDLE,RUBBER,6.5" 100-0076-0 FOOT,RUBBER,ROUND,5/8DIA. X 5/8" 100-0102-0 CAP,.72 APLS SPLINE SHAFT 100-0103-0...
- Page 23 LVL. PART# DESCRIPTION QTY. REF. DESIG. 130-0063-0 400RB FRONT PANEL OVERLAY 130-0064-0 400RB REAR PANEL OVERLAY 132-0314-E 400RB-II REAR PANEL 120-0005-0 ALUM .100 132-0317-A 400RB,200W UPPER SINK 120-0006-0 ALUM .125 132-0318-A 400RB,200W LOWER SINK 120-0006-0 ALUM .125 132-0565-0 400RB-II FRONT PANEL...
- Page 24 054-2702-0 RES,CARBON FILM,2.7K OHM,1W,5% R17,R18 070-0508-0 POT,1K TRIM,6MM,SLOT,.3W 092-0066-0 FASTON,M,PC,.250" P2,3,4,5,6,7 093-0029-0 HDR,.156X4,VERT,MALE,LOCK,ROUND 145-0041-C 400RB POWER AMP BOARD 206-0047-E 400RB Preamp PART# DESCRIPTION QTY REF. DESIG. 001-1030-0 LF353N DUAL JFET OP AMP U1,U2,U3 001-3029-0 DG419DJ, DUAL COMP ANALOG SWITCH 010-2010-0...
- Page 25 RES,CARBON FILM,56K OHM,1/4W,5% 052-0000-0 RES,CARBON FILM 0 OHM,1/4W,5% R9,R12,R32,R52,R54,R64,R77,R75A,R76A 070-1513-0 POT,50K-15A,7MM,KNURL,.1W R14-volume 070-1514-0 POT,50KB,7MM,KNURL,.1W R36,R53,R63,R67,R89- EQ, master pots 070-1522-0 POT,2KB,7MM,KNURL,.1W R76-boost 090-0014-0 SWITCH,PP,DPDT,.2A,BREAK/MAKE,PC S1,S2,S3,S4- all switches 092-0076-0 JACK S2-BNB,1/4",S-TIP,PC TERM J1,J2- all jacks 093-0028-0 HDR,.156X3,VERT,MALE,LOCK 093-0029-0 HDR,.156X4,VERT,MALE,LOCK,ROUND 145-0047-E 400RB PREAMP BRD...
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