MEDIA 2 — JBL Audio Service Manual (repair manual)

Model
MEDIA 2
Pages
16
Size
1.14 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
media-2.pdf
Date

View JBL MEDIA 2 Service Manual online

JBL Consumer Products Inc.
80 Crossways Park West
Woodbury, N.Y. 11797
1-800-336-4JBL in the USA
A Harman International Company
Part No.: MEDIA2SM Rev A
Media 2
TECHNICAL MANUAL
2-way 3" Powered Multimedia Speaker System
1
Two-Way Speaker System
Media 2
TABLE OF CONTENTS
Features..........................................................................1
Specifications .................................................................1
Disassembly Procedures................................................2
Trouble Shooting ............................................................2
Block Diagram ................................................................3
Master Speaker Exploded View (With Amplifier) ..........4
Slave Speaker Exploded View (Without Amplifier) .......5
Printed Circuit Boards ....................................................6
Electrical Parts List ........................................................7
Packaging Exploded View .............................................8
Integrated Circuits ..........................................................9
Media 2 Schematic Diagram........................................10
FEATURES
n
Two-way speaker system.
n
10-watt stereo amplifier.
n
Auto turn-on/turn-off circuitry.
n
Speakers are magnetically shielded for flicker-free use
alongside computer monitors.
n
For use with both Mac and PC-based computer systems.
n
Built-in electronic equalization for smooth frequency
response.
n
Variable bass contour control.
n
Subwoofer output.
SPECIFICATIONS
Speaker System Full Range:
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Two-Way Speaker System
Speaker Size:
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3" Woofer, 1.5" Tweeter
Total Amplifier Output Power: .
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10W at 10% THD
Frequency Response: .
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100Hz - 20kHz
Input Impedance:
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50K ohms
Subwoofer Output Jack: .
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Stereo mini plug (1/8")
Signal Input Jacks: .
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Stereo mini plug (1/8")
External Dimensions:
Height .
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11.5" (292mm)
Width .
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3.75" (95mm)
Depth .
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6" (152mm)
Weight:.
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4 lbs per pair
2
Two-Way Speaker System
Media 2
DISASSEMBLY PROCEDURES
Step1. Unscrew (#14) from
Rear Case (#2) and remove
Rear Case (#2)
Step2. Unscrew 4 screws (#15) from bottom of “Down
Case” (#4) and lift “Up Case” (#3 for the Slave Speaker
or #21 for the Master Speaker) off of “Down Case”.
To separate the “Front Case” (#1 for the Slave Speaker
or #20 for the Master Speaker) from the “Down Case”
(#4), pinch interior clip of “Axis Covers” (#6) and force out
of hole. These should snap out.
TROUBLE SHOOTING
1. If the power LED Fails
A. Check if the accessory adaptor is properly fitted.
B. Check if the adaptor is plugged into the D.C. Jack.
2. No sound from the Master Speaker
A. Check if the adaptor is plugged into the input jack and
audio signal is lighted.
B. Check if the power switch is on.
C. Check to see if the volume knob is turned up half-way.
3. No sound from the Slave Speaker
A. Check to see if it is well connected to the Master
Speaker.
4. The power signal is RED
(normally it should be GREEN)
A. Check if the adaptor is plugged into the jack.
5. No volume
A. Check to see if both the treble and bass knobs are
turned up half-way.
6. Distortion
A. Check if input jack 1 and input jack 2 are both
connected.
3
Two-Way Speaker System
Media 2
BLOCK DIAGRAM
Page of 16
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Download JBL MEDIA 2 Service Manual (Repair Manual)

Here you can view online or download JBL MEDIA 2 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair JBL MEDIA 2 Audio. Information contained in JBL MEDIA 2 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).