JBL 6230 Instruction Manual Download Page 12 | Manualshive

Page: 12 / 31

background image

«
...
10
11
12
13
14
...
»

Summary of Contents for 6230

Page 1: ...D INSPECTION UBL model 6230 6260 POWER AMPLIFIER JBL Incorporated 8500 BALBOA BOULEVARD P O BOX 2200 NORTHRIDGE CA 91329 U S A PHONE 818 893 8411 TELEX 4720424 SERVICE ADDRESS 8460 SAN FERNANDO ROAD S...

Page 2: ...ual to enable you to achieve optimum utility and performance from your new amplifier We encourage you to read it and to make use of the material contained in this manual We welcome your comments or su...

Page 3: ...ING 1 0 2 7 2 MORE ABOUT LOUDSPEAKER POWER RATINGS 11 2 7 3 SOMETIMES A LARGER AMPLIFIER CAN BE SAFER 12 2 7 4 REMEMBER THE DIVIDING NETWORK CROSSOVER 12 2 8 SPEAKER CABLES 13 2 8 1 TYPE OF WIRE 13 2...

Page 4: ...ATION 22 4 1 INPUT DIFFERENTIAL AMPLIFIER 22 4 2 MODE SWITCH 22 4 3 POWER AMPLIFIER 23 4 4 RELAY DRIVER DC DETECTOR 24 4 5 CLIP CIRCUIT 25 4 6 POWER SUPPLY 25 SECTION V MAINTENANCE 26 5 1 GENERAL 26 5...

Page 5: ...and bottom panels Front panel graphic details are incorporated on the rear side of a polycarbonate laminate which is virtually indestructible JBL amplifiers use multiple 200 watt output devices in co...

Page 6: ...16 ohm bridge 150 W 220 W 300 W 380 W 8 ohm bridge 300 W 350 W 600 W 630 W Rated Power is minimum continuous sine wave output per channel with both channels driving their rated load over a power bandw...

Page 7: ...nal is in phase with pin 3 of XL type connector tip of 6 3 mm 1 4 in phone jack and the barrier strip terminal AC POWER Typical AC power consumption 6230 6260 At idle approx 50 W 50 W At rated output...

Page 8: ...down The relay also disconn ects the load if excess DC voltage is detected at the output or upon failure of any of the amplifier power supplies If the amplifier overheats due to a lack of ventilation...

Page 9: ...material at normal room temperature and humidity This presumes a free unrestricted flow of cooling air to the rear mounted heatsink When the amplifier is mounted in a rack it is important to ensure th...

Page 10: ...OT COVERED BY THE WARRANTY To comply with most electrical codes this amplifier is supplied with a three conductor AC power cable the grounding pin of which is connected to the chassis In some installa...

Page 11: ...f the chassis See Figures 2 1 2 2 and 2 3 NOTE The JBL Amplifier input connectors are wired as follows PHONE XL TYPE BARRIER STRIP JACK CONNECTOR CONNECTION Tip Pin 3 or HIGH Ring Pin 2 or LOW Sleeve...

Page 12: ...a dual banana plug for each speaker cable Simply insert each plug into the corres ponding channel s red and black binding posts See Figure 2 5 In the absence of a dual banana plug or two single banana...

Page 13: ...ed However transmission line theory and techniques are not only unnecessary but impractical within modern recording studios broadcast studios and other local audio systems where transmiss ion circuits...

Page 14: ...BILITY TO AVOID OVERPOWERING It is essential that the amplifier be used with loudspeakers of suitable impedance that can handle the amplifier s power out put We realize this is not always easy to dete...

Page 15: ...re gradual with the voice coil bottoming against the magnetic assembly until it is deformed a compression driver diaphragm can strike the phase plug and shatter or the suspension can be over extended...

Page 16: ...igh a level certainly never at a clip This can be accomplished either by knowing the program material if recorded and setting levels accordingly or by using peak limiters with live or unknown program...

Page 17: ...flexing without fatigue 2 8 2 DAMPING FACTOR The higher the damping factor of an amplifier the greater its ability to control unwanted speaker cone movements espec ially at low frequencies Damping fac...

Page 18: ...cting damping factor less than smaller gauge cables 2 8 3 CALCULATING LOSSES IN SPEAKER CABLE WIRE DIAM mm SOLID A W G WIRE GAUGE DC RESISTANCE PER 30 m 100 ft OF TWO CONDUCTOR CABLE OHMS CABLE LENGTH...

Page 19: ...ifier output Check for this using a 3 prong to 2 prong AC adaptor between the power cord and the power outlet temporarily ungrounding the amplifier Try the amplifier both with and without the ground s...

Page 20: ...INTO THE AMPLIFIER WHEN THE KNOBS ARE OFF THERE IS THE POSSIBILITY OF SEVERE SHOCK HAZARD DUE TO THE HIGH VOLTAGE HIGH CURRENT DC USED TO POWER THIS DEVICE THE AMPLIFIER SHOULD NOT BE OPERATED WITHOU...

Page 21: ...ring shield sleeve FIGURE 2 1 BALANCED INPUT CONNECTIONS high low shield 3 1 2 high low shield tip sleeve FIGURE 2 2 UNBALANCED INPUT CONNECTIONS For a given channel use either XL type or phone jack...

Page 22: ...Chassis Ground 4 4 Balanced Connection FIGURE 2 3 BARRIER STRIP CONNECTIONS 18...

Page 23: ...VE WAY BINDING POSTS CHANNEL A CHANNEL B BLACK FIGURE 2 5 OUTPUT CONNECTIONS TO TWO CHANNEL SPEAKER SYSTEM CHANNEL A BLACK BLACK BINDING POSTS NOT USED RED FIGURE 2 6 BRIDGED OUTPUT CONNECTION TO MONA...

Page 24: ...connected the output stages to the five way binding posts After a few seconds the relay will actuate as the STANDBY LED turns off At this point bring up the Level controls until a suitable listening...

Page 25: ...fier s Level control is set at 28 or lower The symptom of such input overdrive is audible distortion without any indication from the CLIP LED In such cases simply lower the signal level at the source...

Page 26: ...ls which appear equally on both input terminals such as common mode noise and hum will be cancelled and unequal signals such as legitimate input signals will be summed Use of the inverting mode in bot...

Page 27: ...ers loaded by the emitters of Q30 and Q19 Note that no inverting voltage amplifiers are used All transistors are used in current mode non inverting connections This eliminates bandwidth limiting due t...

Page 28: ...gged design is all that is necessary or desirable unless the design goal is a minimum of output devices in order to save cost We don t subscribe to such techniques 4 4 RELAY DRIVER OUTPUT DC DETECTOR...

Page 29: ...ransistor OFF thereby turning the LED ON Capacitor C38 provides peak stretching to enable transient peaks of short duration to be seen 4 6 POWER SUPPLY The power supply is conventional The AC voltage...

Page 30: ...prompt service ship the unit prepaid directly to the factory with the RA Number visible on the shipping label Use the original factory carton if necessary call the factory at the number listed below t...

Page 31: ...REVISIONS...

Reviews:

No comments

Related manuals for 6230

Brand: ifi Pages: 21

Brand: Jet City Pages: 7

Brand: Roland Pages: 6

Brand: Ssl Pages: 20

Brand: Texas Instruments Pages: 10

Maestro STEREO LINE PREAMPLIFIER

Brand: Audio Analogue Pages: 20

Brand: B&K Pages: 16

Brand: T&M Performance Pages: 8

Brand: PowerBass Pages: 28

Brand: PowerBass Pages: 24

Brand: Sonosax Pages: 19

Brand: Crestron Pages: 24

Brand: Harman Kardon Pages: 32

Brand: AkitikA Pages: 56

Brand: B&K Pages: 12

Brand: Harman Kardon Pages: 11

Brand: Qls Pages: 5

Brand: Texas Instruments Pages: 32

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands