JBL JBLBOOMBOXBLKAM User manual

Service Manual
Released by Global Quality harman/kardon, Inc.
BOOMBOX (S/N Starting from PL)
Portable Bluetooth Speaker with passive bass radiators, 10000 mAh(7.4V) battery for 24 hours of playtime
and charging of other devices through dual USB, and IPX7 waterproof.
Ver. 2.2 Feb. 2020
SKU: JBLBOOMBOXBLKAM, JBLBOOMBOXBLKEU, JBLBOOMBOXBLKAS, JBLBOOMBOXBLKCN,
JBLBOOMBOXBLKJN, JBLBOOMBOXGRNAM, JBLBOOMBOXGRNEU, JBLBOOMBOXGRNAS,
JBLBOOMBOXGRNCN, JBLBOOMBOXGRNJN, JBLBOOMBOXBLKBR, JBLBOOMBOXGRNBR,
JBLBOOMBOXSQUADAM, JBLBOOMBOXSQUADEU, JBLBOOMBOXSQUADAS,
JBLBOOMBOXSQUADCN, JBLBOOMBOXSQUADJN, JBLBOOMBOXSQUADBR.

Table of Contents
Technical Specifications...............................................................................................................3
Safety Instruction, Warning & Notes ...........................................................................................4
Software Upgrade Procedure ......................................................................................................7
Block Diagram...........................................................................................................................11
Schematic Diagram – EQ ...................................................................................................... 12
Schematic Diagram - Jack ..........................................................................................................13
Schematic Diagram - Key...........................................................................................................14
Schematic Diagram - LED...........................................................................................................15
Schematic Diagram - Main.........................................................................................................16
Schematic Diagram – USB..................................................................................................... 24
PCB Layout – EQ .................................................................................................................. 25
PCB Layout – Jack ................................................................................................................ 25
PCB Layout – Key ................................................................................................................. 25
PCB Layout – LED ...................................................................................................... ......... 26
PCB Layout – Main ............................................................................................................... 26
PCB Layout – USB ................................................................................................................ 27
Mechanical Exploded View .................................................................................................... 28
Packaging Exploded View ..................................................................................................... 34
Spare Parts List..................................................................................................................... 35
Disassembly Instruction ........................................................................................................ 38
Service Information ............................................................................................................... 50
Revision List ......................................................................................................................... 51

Technical Specifications
Bluetooth version: 4.2
Support: A2DP 1.3 AVRCP 1.6 HFP 1.6
Transducers: 4 inch woofer x 2, 20mm, Tweeter X 2
Output power: 2 X 30W (AC mode); 2 X 20W (Battery mode)
Frequency response: 50Hz – 20kHz
Signal-to-noise ratio: 80dB
Power supply: 20V/4A
Battery type: Lithium-ion polymer (7.4V, 10000mAh)
Battery charge time: < 6.5hours
Music playing time: up to 24 hours (Varies by volume level and music content)
Bluetooth transmitter power: 0-9dBm
Bluetooth transmitter frequency range: 2.402GHz – 2.480GHz
Bluetooth transmitter modulation: GFSK, 8DPSK, ʋ/4DQPSK
Dimensions (H x W x D): 254.5 x 495 x 195.5mm
Weight: 5.25KG

Safety Instruction, Warning & Notes

Software Upgrade Procedure
1. Plug in the DC plug of adaptor and connect micro USB to your computer
2. Power on the product
3. Long press Vol + and BT button together 10 seconds to enter DFU mode. If success, Power
button and Connect + flash light blue and white correspondingly.
4. Use ‘HID_DFU_PC_Tool_LocalUpgrade’ tool to upgrade the firmware (Remark: Provided by
Harman software team)
5. Double click ‘HidDfuUI.exe’ file

6. ‘Harman HID DFU Tool’ window pops out. It shows device in the list. Then, click ‘OK’
7. Select the dfu file that you want to upgrade. Then, click ‘Start Upgrade’.

8. Click ‘Yes’ if you want to continue the upgrade
9. Start firmware upgrade

10. After upgrade success, click ‘Finish’
11. Check firmware version by long press Connect + and Vol - . The product can speak the
firmware version.