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WARNING 

THIS SECTION OF THE MANUAL 
CONTAINS SERVICE INSTRUCTIONS 

FOR USE BY QUALIFIED SERVICE 
PERSONNEL ONLY 

I t e m 

JBL Part No. 

Qty. 

Description 

52886 

knob 

55651 

panel 

55098 

meter 

51580 

10-32 Keps

10997 

10 

4 - 4 0

x %

 Phillips-head machine screw 

54959 

lamp 

54969 

knob 

3  m m

3  m m

10 

3  m m

11 

89508 

12 

89508 

10-32 Keps

13 

11908 

No. 6 inter-tooth washer 

14 

54968 

6-32 hex spacer 

15 

55523 

switch 

16 

55901 

power amplifier board 

17 

55153 

6-32

xY

2

 hex washer head screw 

*NOTES: 1. No  J B L replacement for the 3  m m set. 

2. Unit may have either a Keps nut, Keps nut and washer or Keps nut, split washer and flat washer. 

3. Keps nut locked to panel stud with Loctite. 

Summary of Contents for 6011

Page 1: ...JBL 6011 6012 INSTALLATION AND SERVICE MANUAL...

Page 2: ...ection and shall disconnect easily at two plugs The amplifier shall occupy three standard EIA rack spaces and shall operate on 120 240 VAC 50 60 Hz LO CUT OUT SWITCH S301 TRANSFORMER OUTPUT TERMINAL S...

Page 3: ...eptacle XK301 Figure 1 The input leads are connected to terminals HI LO and GND of the LINE terminal strip Output Connections Table 3 shows the output configurations available TABLE 1 Gain Controls in...

Page 4: ...igure 4a Install one jumper only per Figure 4b 3 Change the line cord and or attachment plug to match the supply source receptacle or use a 120 V to 240 V A C adapter not provided The adapter as well...

Page 5: ...ne screw 6 54959 1 lamp 7 54969 1 knob 8 4 3 m m 1 9 4 3 m m 1 10 4 3 m m 1 11 89508 1 2 12 89508 1 10 32 Keps2 13 11908 1 No 6 inter tooth washer 14 54968 1 6 32 hex spacer 15 55523 1 switch 16 55901...

Page 6: ...djust the decade for minimum distortion and sub stitute R37 with the closest EIA standard resistor 4 Verify distortion at 100 W and 1 W NOTE Amplifier must be warm before performing distortion measure...

Page 7: ...Y NGTBS Graphs recorded using Radiometers BKF10 REC61S2 and SMU401 Frequency response and distortion measurements made using a constant input level to the amplifier under test NOTES Gtaphsrecoided usi...

Page 8: ...JBL Professional Division James B Lansing Sound Inc 8500 Balboa Boulevard Northridge California 91329 U S A 56404 PTM 6011 12 10 78 Printed in U S A...

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