JBL BPX500.1 Manuale utente

BPX500.1

2 CHANNEL

POWER AMPLIFIER

SERVICE MANUAL

JBL Consumer Products

250 Crossways Park Dr.

Woodbury, New York 11797 Rev1 2/2004

CONTENTS

Specifications………………………….…………………..……1

Features…………………………………………………………2

Test Conditions And Notes……………………………………2

Controls/connections…………………………………..………3

Mounting…………………………………………….…..………3

Applications………………………………………..……………4

Typical System Configuration…………………………………5

Troubleshooting……………………………………….……..…6

PCB drawings……………………………………..……………7

Electrical Parts List……………………………………………10

Mechanical Parts List……………….………………..………13

Block Diagrams……………………………………….………14

Semiconductor Pinouts………………………………………15

Exploded view…………………………………………………20

Schematics……………………………………………….……21

Packing………………………………….………………………30

SPECIFICATIONS

Power Output, 4 Ohms: n/a

Power Output, 2 Ohms: 250W x 2

Power Output, Bridged, 4 Ohms: 500W x 1

Power Output, Parallel, 1 Ohm: 500W x 1

MIN. Speaker Impedance: 1 ohm

Frequency Response: 20Hz~320Hz, -3dB

Input Sensitivity (RCA type): 250mV~6V

THD + Noise (4 Ohms): 0.5%

Signal-to-Noise: 93 dB

Maximum Current Draw: 50A

Fuse Replacement: 30Ax2

External Dimensions:

Length 12 ¼” (312mm)

Width 13” (330mm)

Depth 2 9/16” (66mm)

JBL continually strives to improve its products. New materials, production methods and design refinements are introduced into existing

models without notice as a routine expression of our design philosophy. For this reason, Power Series Multichannel Automotive

Amplifiers may differ in some respects from their published specifications and descriptions, but will always equal or exceed the original

specifications unless otherwise stated.

Power Amplifier

BPX500.1

APPLICATIONS – BPx MODELS

To the right are several application

diagrams to help plan your subwoofer

system installation. Figures 1 through 3

show how to configure the JBL Power

Series subwoofer amplifiers (models

BPx500.1, BPx1100.1 and BPx2200.1)

for 2-channel, bridged-mono and

parallel-mono operation

“Setting the Output Mode” on page 6).

NOTE: For simplicity, Figures 1 through

3 do not show power, remote and input

connections.

NOTE: If the nominal impedance

of your speaker system is close to

2 ohms, be prepared to try both

bridged and parallel configurations to

determine which performs better.

BPx Amplifier

(partial rear panel)

SEE MANUAL FOR PARALLEL CONNECTION

2 CHANNEL

BRIDGED

PARALLEL

CH 1

CH 2

SPEAKER OUTPUTS

NEON

Subwoofer Subwoofer

Set OUTPUT MODE

to 2CH/BR

(on input panel)

PARALLEL 2CH/BR

OUTPUT MODE

12dB 24dB

32Hz 320Hz

FREQ

SLOPE

X-OVER

BPx Amplifier

(partial rear panel)

SEE MANUAL FOR PARALLEL CONNECTION

2 CHANNEL

BRIDGED

PARALLEL

CH 1

CH 2

SPEAKER OUTPUTS

NEON

Subwoofer (less than 2 ohms)

Set OUTPUT MODE

to PARALLEL

(on input panel)

PARALLEL 2CH/BR

OUTPUT MODE

12dB 24dB

32Hz 320Hz

FREQ

SLOPE

X-OVER

jumper

Figure 1. The JBL Power Series

subwoofer amplifier is set to

2-channel mode to drive a pair

of subwoofers.

Figure 2. The JBL Power Series

subwoofer amplifier is set to

bridged (mono) mode to drive

a single subwoofer. Use this

mode only when the nominal

impedance of the speaker

system is 2 ohms or greater.

Figure 3. The JBL Power Series

subwoofer amplifier is set to

parallel mode to drive a single

subwoofer. Use this mode only

when the nominal impedance

of the speaker system is less

than 2 ohms.

NOTE: A jumper is added

between the + terminals.

BPx Amplifier

(partial rear panel)

SEE MANUAL FOR PARALLEL CONNECTION

2 CHANNEL

BRIDGED

PARALLEL

CH 1

CH 2

SPEAKER OUTPUTS

NEON

Subwoofer (2 ohms or greater)

Set OUTPUT MODE

to 2CH/BR

(on input panel)

PARALLEL 2CH/BR

OUTPUT MODE

12dB 24dB

32Hz 320Hz

FREQ

SLOPE

X-OVER

Power Series Amp OM 5/20/03 10:51 AM Page 3

Power Amplifier

BPX500.1

TROUBLESHOOTING

SYMPTOM LIKELY CAUSE SOLUTION

No audio No voltage at BATT+ Check voltages at

(POWER LED or REM terminals, amplifier terminals

is off) or bad or no ground with VOM

connection

No audio DC voltage on Amplifier may need

(PROTECT LED amplifier output service; see enclosed

flashes every warranty card for

4 sec.) service information

No audio Amplifier is Make sure amplifier

(PROTECT overheated cooling is not blocked

LED is on) at mounting location;

verify speaker-system

impedance is within

specified limits (see

“Specifications” on the

next page)

No audio Voltage less than 9V on Check vehicle

(PROTECT BATT+ connection charging system for

and POWER defective voltage

LEDs flash) regulator

I-E/OPT LED Amplifier is being Check INPUT

is on all times overdriven LEVEL setting;

(not flashing) see previous page

No audio Voltage more than 16V Check vehicle

(PROTECT or less than 8.5V on charging system for

LED is on) BATT+ connection defective voltage

regulator

Distorted audio Input sensitivity is Check INPUT

not set properly, or LEVEL setting; or

amplifier or source check speaker wires

unit is defective for shorts or grounds

Distorted audio Short circuit in Remove speaker leads

and PROTECT speaker or wire one at a time to locate

LED flashes shorted speaker or

wire, then repair

Music lacks Speakers are not Check speaker

“punch” connected properly connections for

proper polarity

Power Amplifier

BPX500.1

PAS132-01

REV.0

A20K

623PCB4-B

A20KA20K

623PCB4-B

A20K

623PCB4-B

A20K

623PCB4-B 623PCB4-B

A20K

623PCB4-B

A20KA20K

623PCB4-B 623PCB4-B

A20K A20K

623PCB4-B 623PCB4-B

A20K

VR701

R701

MOD02

VR701

R701

MOD02

VR701

R701

MOD02

VR701

R701

MOD02 MOD02

MOD02

R701R701

VR701

R701

MOD02

VR701

R701

MOD02 MOD02

R701

VR701

R701

MOD02 MOD02

R701

VR701

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