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Gallien-Krueger Backline 100, Service Manual

The Gallien-Krueger Backline 100 Operating Instructions Manual is essential for getting the most out of this powerful bass amplifier. Easily accessible on our website, you can download this comprehensive manual for free. Discover detailed instructions, tips, and tricks to unlock the full potential of your Backline 100.

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Service  Manual

   Backline 100

Summary of Contents for Backline 100

Page 1: ...Service Manual Backline 100 ...

Page 2: ...Table of Contents Operating Instructions 3 Turn On Calibration Procedure 7 Schematics 9 Engineering Change Orders ECOs 17 Bill of Materials 24 ...

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Page 7: ...0 Turn on 2nd load to 4 ohms Signal should round off and go to 13 5Vrms INPUTSET UPANDLEADCHANNELTEST 1 Power LED only should be lit 2 Engage channel switch S4 Lead LED should turn on 3 Oscillator to input 200Hz 4dBV Engage lead 2 switch S2 4 Look at drain of Q10 adjust R6 so signal clips evenly on both sides should be 22Vp p centered 2 5V 5 Adjust R91 1k trim for 7 5 8VDC on drain of Q86 J113 6 A...

Page 8: ...Engage Channel Switch and Lead 2 switch to the front panel 3 If necessary push footswitches so both LEDs are off 4 Compare output to Fig 8 5 Engage Channel footswitch LED on panel footswitch light Output goes up 6 Engage Lead Channel footswitch footswitch LED lights output goes up NOISETEST 1 Remove oscillator input 2 Connect speaker to output and listen to noise It should be clean with no distort...

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Page 24: ... 10 32 1 1 4 OHP B O 10 1 114 5120 0 SHEETMETAL SCREW 10A 3 4 OHP B O 28 1 114 7008 0 WASHER 10 COUNTERSUNK FINISHING B O 4 1 130 0071 0 PARAGON VL100 OVERLAY 1 1 132 0577 0 BACKLINE GRILL 1 1 133 0004 0 TOLEX BLACK 0 1 205 1013 0 CABINET BACKINE 1 1 250 0015 0 CHASSIS BACKLINE EMIN 1 2 011 0243 0 MJE243 NPN 100V 4A TO 126 1 2 012 0085 0 TIP 35CFP NPN 100V 25A TO218 2 2 012 1086 0 TIP 36CFP PNP 10...

Page 25: ...L 2 2 100 0072 0 GROMMET 187 I D 4 2 100 0096 0 KNOB BLUE 6X15MM SPLINE SHAFT 6 Note as of 1999 gray knobs only available 2 100 0098 0 KNOB GRAY 6X15MM SPLINE SHAFT 2 Note as of 1999 gray knobs only available 2 100 0099 0 KNOB RED 6X15MM SPLINE SHAFT 3 Note as of 1999 gray knobs only available 2 100 0107 0 END BELL X FORMER BACKLINE 1 2 111 7005 0 WASHER 4 FIBRE FLAT 1 2 111 7011 0 WASHER 4 SPLIT ...

Page 26: ...23 30 16V 3 C25 C64 C66 2 030 1103 0 CAP CERAMIC AXIAL 103 30 25V 4 C39 C74 C94 C97 2 030 2101 0 CAP CERAMIC AXIAL 101 5 50V 2 C14 C124A 2 030 2102 0 CAP CERAMIC AXIAL 102 10 50V 1 C82 2 030 2104 0 CAP CERAMIC AXIAL 104 10 50V XR7 3 4 C132 C139 C169 C173 2 030 2222 0 CAP CERAMIC AXIAL 222 10 50V 3 C81 C120 C167 2 030 2224 0 CAP CERAMIC AXIAL 224 20 50V XR7 6 C68 C72 C108 C112 C160 C168 2 030 2271 ...

Page 27: ...FILM 220K OHM 1 4W 5 2 R128 R182 2 051 3302 0 RES CARBON FILM 3 3K OHM 1 4W 5 2 R110 R166 2 051 3303 0 RES CARBON FILM 33K OHM 1 4W 5 1 R106 2 051 4701 0 RES CARBON FILM 470 OHM 1 4W 5 2 R37 R144 2 051 4702 0 RES CARBON FILM 4 7K OHM 1 4W 5 8 R65 R73 R80 R101 R143 R159 R170 R172 2 051 4703 0 RES CARBON FILM 47K OHM 1 4W 5 5 R33 R36 R38 R88 R103 2 051 4704 0 RES CARBON FILM 470K OHM 1 4W 5 4 R47 R4...

Page 28: ...ZENER 2 4V 5 400MW DO 7 2 D40 D58 2 020 0100 0 1N758A ZENER 10V 5 400MW DO 35 2 D47 D64 2 020 1103 0 1N914 RECT FAST 200MA 100V 4NS DO 35 6 D36 D41 D44 D66 D72 D73 2 020 2105 0 1N4002 RECT 1A 150V DO 41 2 D22 D80 2 020 5352 0 1N5352 ZENER 15V 5 5W 17 02 2 D35 D52 2 023 0140 0 BY224 600 BRIDGE RECT 5A 600V SOT 112 1 BR1 2 030 1103 0 CAP CERAMIC AXIAL 103 30 25V 1 C48 2 030 2101 0 CAP CERAMIC AXIAL ...

Page 29: ...33 R38A R82 2 053 6801 0 RES CARBON FILM 680 OHM 1W 5 2 R1 R2 2 055 150 0 RES METAL OXIDE 15 OHM 2W 5 4 R11 R24 R57 R79 2 056 330 0 RES CERAMIC WW 33 OHM 5W 10 2 R69 R70 2 057 3301 0 RES WIRE WOUND 330 OHM 10W 10 2 R25 R56 2 070 0508 0 POT 1K TRIM 6MM SLOT 3W 1 R50 2 081 0031 0 INDUCTOR 1 5 UH WITH 10 OHM 2W RESISTOR 1 L71 2 091 0010 0 FUSE 8A 125V 1 4X1 1 4 SLB 2 F1 F2 2 092 0010 0 PRINTEDCIRCUIT...

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