Harman JBL FLIP 4 User manual

CONTENTS
2
3
14
28
Technical Specifications
Safety Instruction, Warning & Notes
Dismantling Instruction
Set Block Diagram
Schematic & Layout Diagrams Set
Mechanical Exploded View
Packaging Exploded View
Spare Parts List
Revision List
13
6
29
30
33
Flip 4 (S/N starting with AN)
Service Manual
Portable Wireless Stereo Speaker with passive bass radiators, 3000 mAh battery for 12 hours of
playing time and charging of other devices through USB, and IPX7 waterproof.
SKU: JBLFLIP4BLK , JBLFLIP4GRY, JBLFLIP4RED, JBLFLIP4BLU, JBLFLIP4TEL, JBLFLIP4WHT
JBLFLIP4BLKAM, JBLFLIP4GRYAM, JBLFLIP4REDAM, JBLFLIP4BLUAM, JBLFLIP4TELAM, JBLFLIP4WHTAM
Released by Global Quality harman/kardon, Inc. Ver. 1.5Mar.2019

HARMAN International Industries, Incorporated
8500 Balboa Boulevard, Northridge, CA 91329 USA
www.jbl.com
© 2017 HARMAN International Industries, Incorporated. All rights reserved. JBL is a trademark of HARMAN
International Industries, Incorporated, registered in the United States and/or other countries. The Bluetooth®word
mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by HARMAN
International Industries, Incorporated is under license. Other trademarks and trade names are those of their
respective owners. Features, specifications and appearance are subject to change without notice.
Portable Bluetooth Speaker
What’s in the box:
1 x JBL Flip 4
1 x JBL Micro USB Cable
1 x Safety Sheet
1 x Quick Start Guide
Warranty Card
Technical specifications:
Bluetooth version: 4.2
Support: A2DP V1.3, AVRCP V1.6, HFP V1.6,
HSP V1.2
Transducer: 2 x 40mm
Output power: 2 x 8W
Frequency response: 70Hz – 20kHz
Signal-to-noise ratio: ≥80dB
Battery type: Lithium-ion polymer
(3.7V, 3000mAh)
Battery charge time: 3.5 hours @ 5V1A
Music playing time: up to 12 hours (varies by
volume level and audio content)
Bluetooth transmitter power: 0 – 9dBm
Bluetooth transmitter frequency range:
2.402 – 2.480GHz
Bluetooth transmitter modulation: GFSK,
π/4-DQPSK, 8DPSK
Dimensions (H x W x D): 68 x 175 x 70 (mm)
Weight: 515g
Features and Benefits
Wireless Bluetooth Streaming
Wirelessly connect up to 2 smartphones or tablets to the speaker and take turns playing
impressive stereo sound.
12 hours of playtime
Built-in 3000mAh rechargeable Li-ion battery supports up to 12 hours of playtime.
IPX7 Waterproof
No more worrying about rain or spills; you can even submerge Flip 4 in water.
JBL Connect+
Link more than 100 JBL Connect+ enabled speakers together to amplify the party.
Speakerphone
Take crystal clear calls from your speaker with the touch of a button thanks to the noise
and echo-cancelling speakerphone.
Voice Assistant Integration
Access Siri or Google Now from your JBL speaker with a simple button press.
Lifestyle Material
The durable fabric material and rugged rubber housing allows your speaker to outlast
all of your adventures.
JBL Bass Radiator
Hear the bass, feel the bass, see the bass. Dual external passive radiators demonstrate
just how powerful your speaker is.

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings.Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including
amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the
third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and the
point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket or table specified by the manufacturer or sold with the
apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid
injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged
in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, or the apparatus has been exposed to rain or moisture, does not operate normally or has been dropped.
15. Do not expose this apparatus to dripping or splashing and ensure that no objects filled with liquids, such as vases,
are placed on the apparatus.
16. To completely disconnect this apparatus from the AC Mains, disconnect the power supply cord plug from the AC
receptacle.
17. The mains plug of the power supply cord shall remain readily operable.
18. Do not expose batteries to excessive heat such as sunshine, fire or the like.
For Products That Transmit and
Receive RF Energy:
FCC Regulations (USA Only)
FCC Information For Users
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) This device
may not cause harmful interference; and (2) this device must
accept any interference received, including interference that
may cause undesired operation.
Radio and Television Interference
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause interference to radio
or television reception, which can be determined by turning
the equipment off and then on, the user is encouraged to try
to correct the interference by one or more of the following
measures:
•Increase the separation between the equipment and
receiver.
•Connect the equipment to a different outlet so that the
equipment and receiver are on different branch circuits.
•Consult the dealer or an experienced radio/TV technician
for help.
NOTE: Changes or modifications not expressly approved
by Harman could void the user’s authority to operate the
equipment.
IC Statement and Warning (Canada Only)
This Class B digital apparatus complies with Canadian ICES-
003. Cet appareil numérique de la classe B est conforme à la
norme NMB-003 du Canada.
For Canadian Model
This Class B digital apparatus complies with Canadian
ICES-003.
Modèle pour les Canadien
Cet appareil numérique de la classe B est conforme à la
norme NMB-003 du Canada.
For Products with Radio Receivers
That Can Use an External Antenna:
CATV or Antenna Grounding
If an outside antenna or cable system is connected to this
product, be certain that it is grounded so as to provide some
protection against voltage surges and static charges. Section
810 of the National Electrical Code, ANSI/NFPA No. 70-1984,
provides information with respect to proper grounding of the
mast and supporting structure, grounding of the lead-in wire
to an antenna discharge unit, size of grounding conductors,
location of antenna discharge unit, connection to grounding
electrodes and requirements of the grounding electrode.
Note to CATV System Installer:
This reminder is provided to call the CATV (cable TV) system
installer’s attention to article 820-40 of the NEC, which
provides guidelines for proper grounding and, in particular,
specifies that the cable ground shall be connected to the
grounding system of the building, as close to the point of
cable entry as possible.
For CD/DVD/Blu-ray Disc™Players:
Caution:
This product uses a laser system. To prevent direct exposure
to the laser beam, do not open the cabinet enclosure or defeat
any of the safety mechanisms provided for your protection.
DO NOT STARE INTO THE LASER BEAM. To ensure proper use
of this product, please read the owner’s manual carefully and
retain it for future use. Should the unit require maintenance
or repair, please contact your local Harman Kardon service
center. Refer servicing to qualified personnel only.
For Products That Include Batteries:
Instructions for Users on Removal and Disposal of
Used Batteries.
CAUTION
Risk of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
Alkaline batteries are considered nonhazardous.
Rechargeable batteries (i.e., nickel cadmium, nickel metal-
hydride, lithium and lithium-ion) are considered hazardous
household materials and may pose an unnecessary health
and safety risk.
In the European Union and other locations, it is illegal to
dispose of any battery with household trash. All batteries
must be disposed of in an environmentally sound manner.
Contact your local waste management officials for information
regarding the environmentally sound collection, recycling and
disposal of used batteries.
To remove the batteries from your equipment or remote
control, reverse the procedure described for inserting
batteries in the owner’s manual.
For products with a built-in battery that lasts for the lifetime of
the product, removal may not be possible for the user. In this
case, recycling or recovery centers handle the dismantling of
the product and the removal of the battery. If, for any reason, it
becomes necessary to replace such a battery, this procedure
must be performed by authorized service centers.
Important Safety Instructions
CAUTION
RISK OF ELECTRIC SHOCK. DO NOT OPEN.
THE LIGHTNING FLASH WITH AN ARROWHEAD SYMBOL,
WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO
ALERT THE USER TO THE PRESENCE OF UNINSULATED
“DANGEROUS VOLTAGE” WITHIN THE PRODUCT’S
ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO
CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL
TRIANGLE IS INTENDED TO ALERT THE USER TO
THE PRESENCE OF IMPORTANT OPERATING AND
MAINTENANCE (SERVICING) INSTRUCTIONS IN THE
LITERATURE ACCOMPANYING THE PRODUCT.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR
MOISTURE.
harman/kardon
2 of 86
3

Each precaution in this manual should be followed during servicing.
Components identified with the IEC symbol in the parts list are special significance to safety. When replacing a component identified with
, use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in the
parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably
insulated from the supply circuit before retuming the product to the customer.
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and
semiconductor "chip" components.
The following techniques should be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on
your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to
prevent electrostatic charge build-up or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges
sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement
ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the
chassis or circuit assembly into which the device will be installed.
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together
or your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.
CAUTION :
4

SAFETY PRECAUTIONS
The following check should be performed for the continued
protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
between the earth ground and all exposed metal parts of the
appliance (input/output terminals, screwheads, metal
overlays, control shaft, etc.). Plug the AC line cord of the
appliance directly into a 120V AC 60Hz outlet and turn the
AC power switch on. Any current measured must not exceed
o.5mA.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A
POTENTIAL SHOCK HAZARD AND MUST BE
CORRECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
AC Leakage Test
Leakage
current
tester
Reading should
not be above
0.5mA
Earth
ground
5

1
2
Item Description Remark
1 Screw driver(small) 2.0
2 Screw driver(middle) 3.0
3 Knife
II Itype
knife(wrapped
by tape)
4 Electrical screw driver
5 Soldering iron
3
4
5
Disassembly Procedure
TOOL LIST
S/N INDICATION (IF VENDOR >=2)
S/N LABEL LOCATION ON XXXX STARTING
WITH II AN II

Dismantling Instruction Pictures
1. Open the cloth network carefully
by Knife following the direction.
2. Open the cloth network carefully
by Knife following the direction.
Note : firstly open the front cloth
network ,and then take off them.
3.Take off four screws as showed
beside left and right cover
Note : keep the waterproof and
breathable membrane intact showed
the yellow ring part
4.Take off out cabinet carefully
following the direction
5. Hold on the left and right cover and
turn them down following the
direction ,then take out the two covers.
6.Take off the 8 screws .

Dismantling Instruction Pictures
7.Disconnect two connectors by
soldering iron ,then take out the two
speakers
8. Take off the two screws as
showed, then unplug cable on the
board ,then take out battery
9. Take off the 4pcs screws as
showed, then take out usb cover
10. Unplug the cable on the USB
board .and then take out usb cover
11. Unplug 4pcs cables as
showed,and then take out main
board
12. Take off the rubber button
pad following the direction.
Take off two
cables

Dismantling Instruction Pictures
13. Take out KEY board. 14. Take off the rubber button pad
.
15. Unplug the FFC cable and take
.
Take
out KEY board

17. Put the main board in the cabinet, and connect 4 cables, then connect usb board with 2 cables,and fix cover on the cabinet
by 4pcs screws.
2017-1-23 ONFIDENTIAL 8
Assembly Procedure
16. Connect the FFC cable to the KEY board and LED board,then put in the cable though the hole. the board can fix the part .

Key
Process
for
splash
-
proof
or
water
-
proof
2017-1-23 ONFIDENTIAL 9
Step 3 Keep the waterproof and breathable membrane intact
Screws must be fixed tightly;,FFC cable must be fixed evenly and tightly Step 17
Screws must be fixed tightly;,FFC cable must be fixed evenly and tightly Step16
Remark
Reassembling Checkpoint
Process Step

Potential
scrap
risk on materials
Note:
1. Make sure all the location where need to be fixed by screws must be even.
2. After reassembly, try to press one passive radiator and observe the another if it can stand up or take more than 1 s to
recover flat. If yes, it should be OK if you have no special sealing equipments to test
3. Before test the set, the glue should be held for 4 hours for drying.
2017-1-23 ONFIDENTIAL 10
Material PartNumberProcess Stepp
Step1/2 Fabric grille PleaserefertotheSBOM
StStepep3/6/73/6/7 SpeakSpeakeerr
Step12 Keyboardrubberbuttonpad
Step14 LEDboardrubberbuttonpad
EVEVAA
StStepep3/6/73/6/7

6
System Block Diagram

7-1
Circuit Diagram-Main Board
1
2
3
4
5
6
7
8
P
G
G
M
RI
RI
FA
L
SDZ
A
N
N
I
U
IM
VDD
P
N
L
ODSE
N/SL
IT
TZ
L
V
GND
9
LINP
10
LINN
11
MUTE
12
AM2
13
AM1
14
AM0
15
SYNC
16 AVCC 17
PVCC 18
PVCC 19
BSNL 20
OUTNL 21
GND 22
OUTPL 23
BSPL 24
GND 25
BSNR 26
OUTNR 27
GND 28
OUTPR 29
BSPR 30
PVCC 31
PVCC 32
Thermal Pad
33
U6
TPA3130D2
L_in_313
Mute
2.2UFC744
2.2UF
C741
C740 2.2UF
2.2UF
C743
OUT_1
OUT_2
AGND
AGND
AGND
AGND
AGND
0
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
+
16V
C736
220UF
+
16V
C737
220UF
AGND
VCC_AMP_10V
AGND
AMP_MUTE
4.7UF
BT_SPK_LP C700
4.7UF
BT_SPK_LN C701
4.7UF
C702
4.7UF
C703
BT_SPK_RP
BT_SPK_RN
R70015K
R701 15K
15KR702
15K
R703
5.1R704
AGND
10V
C765
10UF
VCC_BT_OP
VCC_switch_3V3
VCC_BT_OP
AGND
15k R705
1k
R706
C707
47pF
R707
15k
1k
R708
C708
47pF
22k
R709
22k
R710
10V
C705
10UF
BT_OP_REF
BT_OP_REF
15k
R711
15k
R712 C709
47pF
C710
47pF
C713
NC
AGND C714
NC
GVDD
1KR738
NC
R754
100K R739
20K R756
C742 1uF
100K
R757
10K
R758
25V
C760
220NF
25V
C757
220NF
1 2
L703
1 2
L704
1%
R743
22
R744
22 0.68UF 25V
C747
25V
C748
0.68UF
1%
R745
3.3 OHM
R746
3.3 OHM
25V
C758 220NF
25V
C759220NF
1 2
L705
1 2
L706
R747
22
R748
22 AGND
25V
C753
0.68UF
25V
C754
0.68UF
1%
R749
R750
3.3 OHM
OUT_1
OUT_2
47K
R170
AMP_SDZ
+
16V
C761
220UF
C704
1NF
C762
1NF
C739
1NF
16V
C706
100NF
16V
C735
100NF
16V
C738
100NF
16V
C763
100NF
C766
100NF
1
32
Q20
MMBT3904
1
2
3
A
8 4
V-
V+
U10A
NJM4580V
7
6
5
B
BA4510 SSOP8
U10B
C746
330PF
C745
330PF
C751 330PF
C752 330PF
C767 NC
C768 NC
C769 /NC
C770 /NC
1
2
3
J3
B 3B-EH-A
AGND
1
2
3
J6
B 3B-EH-A
SPKRP
SPKRN
SPKLP
SPKLN
AGND
TP23
TP24
TP25
TP26
G
DS
Q8
NC
G
DS
Q9
NC
G
DS
Q13
NC
R722
NC
R723
NC
R724
NC
AGND
R725
NC
R726
NC
AGND
R727
NC
R728
NC
R729
NC
R730
NC
AGND
1st_2dB
2nd_2dB 3rd_2dB
G
DS
Q14
NC
G
DS
Q15
NC
G
DS
Q16
NC
R731
NC
R732
NC
R733
NC
AGND
R734
NC
R735
NC
AGND
R736
NC
R737
NC
R721
NC
R720
NC
AGND
1st_2dB
2nd_2dB 3rd_2dB
VCC_AMP_10V
VCC_AMP_10V
330pF
1 2C749
330pF
1 2
C750
330pF
1 2
C755
330pF
1 2
C756
C780
NC C781
NC
C782
NC
C783
NC
C784
NC
C785
NC
R770
NC
R771
NC
AGND
AGND

7-2
Circuit Diagram-Main Board
C
VCC_BT
VCC_switch_3V3
AGND
AGN
AGND
AGND
IIIINN11
6
1
2
5
7
IIIINN228
COCOM1M1
GNGNDD
VV++
NNO1O1
NNC1C1
NNC2C2
COM2 9
NO2 10
SW1
SD20
10V
C118
10UF
10UF 10
C110
10V 10UF
10V C11410UF
V
A
C115
GND
AGND
5%
R135
10 ohm
Aux_in_mic_3com1
10V
C113
10NF
AGND
5%
R112100k AGND
AUX_in_mic_4Ctr
Microphone_in
AUX_IN_L
AUX_IN_R
1uF
6.3V
C103
1uF
6.3V
C104
AGND
AGND
10V
C101
10NF
C100
1NF
6.3V
C102
10UF
33
R148
33
R106
AUX_R_CH
AUX_L_CH
2.2M
R153
2.2M
R110
12K
R111
12K
R114
150K
R120
1M
R121
1K
R122
VCC_BT
27K
R123
VBAT_DCIN_DETECT1
32
Q17
MMBT3904
2
3
1
D750
BAT54C
1
32
Q11
2SC2712
1
32
Q10
2SC2712
AGND AGND
1
32
Q12
2SC2712
AGND
25V
C121
3.3NF
AGND
Audio_Dete
47k
R141
10K
R149
AGND
220k
R142
100K
R143
10V
C122
10NF
1K
D
R150
22k
R145
33K
R146
10V
C127
10NF
DC_detect
AGND
L103
15nH
25V
C125
15PF
AGND
25V
C126
39PF
2.2k
R109
16V
C124
100NF
Microphone_in
L105 1.5UH
VCC_switch_3V3
VCC_audio_3V3
BT_1V8
16V
C107
100NF
AGND
100k
R180
VCC_BT
AGND
R188 10K Boost_EN
1k
MIC_BIAS_A R115
C156
10UF
AGND
25V
C155
10nF
AGND
VCC_audio_3V3
NC
R184
C129
1NF
AGND
AGND
C130
10UF
C131
47pF
C132
47pF
USB+5V
USB_D+
USB_D-
VCC_BT
AGND
R101 22
22
R102
4.7k R103
4.7k
R104
33 OHM
R137
33 OHM
R126
I2C_CLK
I2C_DAT
33 OHM
R138
33 OHM
R139
I2C_INT
I2C_RESET
USB+5V
BT_SPI_MOSI
BT_SPI_CLK
BT_SPI_MISO
BT_SPI_CSB
AGND
100k
R147
1uF
6.3V
C105
AGND
VCC_BT
AGND
AGND
NC
R181
1: GGEC 0:TCL
JBL_link_white_LED
HW_DET
5%
R1083.3K
5%
R107
3.3K
BT_SPK_RP
BT_SPK_RN
BT_SPK_LP
BT_SPK_LN
AGND
Mic_BIAS_A
Aux_in_mic_com1
PWR_LED_white
AGND
BT_VDD_MEM
BT_1V8 VCC_switch_3V3
BT_VDD_MEM
Aux_in_mic_com2
Aux_in_mic_com2
AGND
1%
R128
3.24K OHM
6.8K OHM
1%
R113
AGND
R118 1%
3.24K OHM
6.8K OHM 1%
R72
AGND
10V C120 10UF AUX_IN_R
AUX_IN_L
AUX_R_CH
AUX_L_CH
82nHL101
82nH
L102
10V
C180
1.5NF
10V
C181
1.5NF
VBAT_1 USB+5V
Audio_Detect
1kR161
BT_blue_LED
AUX_in_mic_Ctr33 OHM
R162
VBAT_DET
AUX_in_mic_Ctr
6.3V
C133
1uF
10 ohm
R163
TP27
TP28
TP29
TP30
TP31
TP32
TP33
USB_D-
USB_D+
VBAT_DET
I2C_DAT0 TP34
TP35
TP47
R782
ESD0603V12C03
5%
R783
ESD0603V12C03
Mark
Mark
BT_module_RF_port
AGND
L106 220R@100MHZ
VCC_switch_3V3
1uF
6.3V
C109
AGND
1kR130
1k
R131
GPIO8
GPIO8 GPIO21
GPIO21
I2C_DAT0
I2C_CLK0
I2C_CLK0
AMP_MUTE
DC_detect
AMP_SDZ
CHARGE_in_STATU(/CHG)
HW_DET
BT_VDD5
VREG_EN
AGND C116
NC
C117
NC
RF 1
GND 2
GND 3
GND 4
J1
ATOM Mini RF CONN
AGND AGND
5%
R100
0 OHM
G
DS
Q18
ME2345A
SYS_PWR_SHUTDOWN
10V C80 10UF
Power_Off_Ready Power_On_Off
Device_restart
10V
C106
10NF
VBAT_DCIN_DETECT 33 UA
RESE
RT_R
T
TS
R615 15
14
13 SP
GND
I_MOSI
12 SPI_CSB
11 SPI_MISO
10 SPI_CLK
9
8I2
GND
S1_DATA IN
7I2S1_DATA OUT
6I2S1_LRCLK
5I2S1_BCLK
4GND
3AIO1
2AIO0
1
UART_CTS
16
UART_TX
17
UART_RX
18
19
20
21
22
23 IS2
GPI
LED0
LED1
LED2
O8
SDA
I2S SCL
24
GPIO16
30
GPIO17
31
GPIO18
32
GPIO19
33
GPIO20
34
GPIO21
35
GND
36
GPIO22
37
GPIO23
38
GPIO24
39
GPIO25 40
GPIO26 41
GPIO27 42
I2S2_LRCLK 43
I2S2_BCLK 44
GPIO15
29 GPIO14 28 I2S2_DATA OUT
27 I2S2_DATA IN
26 GPIO11 25
GND 45
USB_D+ 46
USB_D- 47
GND 48
VDD_PADS 49
VDD_MEM 50
1V8_OUT 51
VBAT 52
VBAT_SENSE 53
CHG_EXT 54
V5.0 55
GPIO30 56
GPIO31 57
GPIO32 58
GND 59
MIC_RN 60
GND 74
SPK_LP 68
SPK_LN 67
GND 66
MIC_BIAS_A 65
MIC_BIAS_B 64
MIC_LP 63
MIC_LN 62
MIC_RP 61
SPK_RN 69
SPK_RP 70
GND 71 GND 72
RF_IN 73
GPIO33 75 GPIO34 76
VDD_3V3 77
GND 78
U1
JS-BTM872H
1
2
J5
B 2B-PH-K-S
1
2
J50
A1251WV-2P
2
1
J4
3
2
1
J7

7-3
Circuit Diagram-Main Board
4
1%
R836
1.00K OHM
1%
R837
1.00K OHM
16V
c819
100NF
6.3V
c820
4.7UF
16V
c818
100NF
6.3V
c817
4.7UF
-In B Out B V+
8
7 6+In B
5V- 4
+In A 3
2
-In A
Out A 1
+
-
A
+-
B
U804
NJM2740
6.3V
c811
4.7UF
6.3V
c810
4.7UF
1%
R810
10.0K OHM
D803
1N4148WS
1N4148WS
1%
R811
10.0K OHM
6.3V
c812
4.7UF
16V
c813
100NF
6.3V
c814
10UF
R8131%
100K OHM
GPIO
4
VDD
1
GPIO 10
GPIO
7
GPI
2
GPIO
6
GPIO
510 ohm3
GPIO 9
GPIO 13
GPIO 11
GPIO 12
GPIO 14
GPIO
5GND 8
U801
SLG46140
6.3V
c816
1UF
16V
c815
100NF
R823 33 ohm
R825 1%
1%
R817
1M OHM
1%
R816
1.2k
1%
R815
27K OHM
A
A
1% R834
3.9k
10K OHM
1%
R833
10K OHM
R827 1k
R829 1k
R828 33 ohm
R826 33 ohm
1%
R820
NC
OUT_2
-In B Out B V+
8
7 6+In B
5V- 4
+In A 3
2
-In A
Out A 1
+
-
A
+-
B
U803
NJM2740
1%
R807
10.0K OHM
D801
1N4148WS
D802
1N4148WS
1%
R808
10.0K OHM
6.3V
c808
4.7UF
16V
c809
100NF
V+ Out B
8 7-In B
6+In B 5V- 4
+In A 3
2
-In A
Out A 1
+
-
A
+-
B
U802
NJM2740
16V
c827
100NF
16V
c807
4.7UF
16V
c806
4.7UF
16V
c828
4.7UF
16V
C825
4.7UF
1%
R806
10.0K OHM
R801 1%
10.0K OHM 1%
R803
10.0K OHM
1%
R804
10.0K OHM
1%
R805
10.0K OHM
1%
R802
10.0K OHM
25V
c805
68PF
25V
C826
68PF
R822 NC TP61
TP60
1%
R821
10
AGND
AGND
AGND
AGND
AGND
A
D804
GND AGND
AGND
AGND
AGND
VCC_slg46140
OUT_1
TP68
TP66
OUT_1
OUT_2
AGND
AGND AGND
Bias1
Bias1
Bias1
Bias1
Bias1
Bias1
Bias1
1%
R835
13K OHM
1%
R830
NC
1%
R831
NC
AGND
R818
10k
DC_detect
1.033v
VCC_audio_3V3
VCC_audio_3V3
VCC_audio_3V3
VCC_audio_3V3
VCC_audio_3V3
VREG_EN
POWER_ON
TP62
PW_KEY
DC_BIAS
Power_On_Off
Power_Off_Ready
VCC_audio_3V3
16V
C829 NC
16V
C830 NC
Device_restart

7-4
Circuit Diagram-Main Board
P12 15
P11 14
P10 13 GND
12 P07
11 P06
10 P05
9P04
8P03
7P02
6P01
5P00
4/RESET
3A1
2/INT
1
P13 16
P14 17
P15 18
P16 19
P17 20
A0 21
SCL 22
SDA 23
VCC 24
U2
TCA1116(PW)
VCC_switch_3V3
10
R136
AGND
AGND
AGND
AGND
I2C_INT
I2C_RESET
red_led_battery (5-15)% 1k R600
1k R601
1k R602
1k R603
1k R604
1k R605
white ledbattery(15-30%)
white ledbattery(30-45%)
white ledbattery(45-60%)
white ledbattery(60-75%)
white ledbattery(>75%)
33 R606 Vol-
33 R607 Vol+
33 R608
33 R609
Link key
Phone Key
BT Key
Vol-
Vol+
Phone Key
AGND
AGND
Link key
PW_KEY
PWR_LED_white
BT_blue_LED
white ledbattery(>75%)
white ledbattery(60-75%)
white ledbattery(45-60%)
white ledbattery(30-45%)
white ledbattery(15-30%)
red_led_battery (5-15)%
4.7K
R155
4.7K
R156
AGND
AGND
R154 BT Key
33
9
8
7
6
5
4
3
2
1
10
11
12
13
J9
0.5S-CX-13PWB
C135
100NF
C151
100NF
C152
100NF
C134 1NF
C136
1NF
C137
1NF
C138
1NF
C139
1NF
C140
1NF
C141
1NF
C142
1NF
C143
1NF
C144
1NF
C145
1NF
C147
1NF
C148
1NF
C149
1NF
C150
1NF
I2C_CLK
I2C_DAT
6
5
4
3
2
1
J10
0.5S-CX-6PWB
JBL_link_white_LED
C146
1NF
VCC_switch_3V3
10k
R610
VCC_IO_expander_3V3
VCC_IO_expander_3V3
10k
R611
10k
R612
10k
R613
1
2
3
4
5
6
J2
B6B-PH-K-S
BT_SPI_MOSI
BT_SPI_CLK
BT_SPI_MISO
BT_SPI_CSB
AGND
VCC_BT
C191
100NF AGND
TP4
TP6
TP7
TP8
TP9
TP10
TP11
TP12
TP13
TP14
TP15
TP17
TP18
TP19
TP20
TP21
TP22
3rd_2dB
2nd_2dB
1st_2dB
AGND
10k R6161
32
Q19
MMBT3904
AGND
Charge_in_EN

7-5
Circuit Diagram-Main Board
N/C
1
CHG
2
BOOST
3
CSP
4
BATT
5
AGND
6
OLIM 7
ISET 8
NTC 9
FB 10
ACOK 11
REG 12
TMR 13
PWIN 14
ILIM 15
VCC 16
VB 17
EN 18
MODE
19
VIN
20
SYS
21
SW
22
PGND
23
PGND
24
U9
MP2637
BST
1
SDR
2
OUT
3
EN
4
MODE
5
SENSE
6
SW
7
SW
8
PGND
9
PGND
10
IN 11
VDD 12
COMP 13
FB 14
SS 15
AGND 16
PGND 17 PGND 18
SW 19 SW 20 SW 21
PGND
22
U7
MP9428A
USB+ 5 V
charge_in_5V
charge_in_5V
AGND AGND
PWIN
PWIN
AGND
Charge_in_EN
AGND
charge_in_VCC
5%
0805
R407
0.02 ohm
NTC
NTC
AGND
AGND
NTC
charge2_sys_5V
AGND
AGND AGND
charge_sys_FB
/ACOK
/BOOST
R501 0.01ohm
R502 0.01ohm
R503 0.01ohm
R504 0.01ohm
C501
22uF 25V
AGND
C502
22uF 25V
C503
22uF 25V
VBAT_1
VBAT_1
2.2uF
C504
AGND
Boost_10V
AGND
SDR
AGND
AGND
AGND
AGND
USB_D-
C414
22UF
C415
22UF
10V
C407
22UF
C406
22UF
25V
C509
22UF 25V
C510
22UF
3428_SW
3428_SW
different pair
same length
NC
R516
AGND
AGND
AGND
AGND
AGND
AGND
AGNDAGND AGND AGNDAGND
AGND AGNDAGND
AGND
C400
100NF
C426
100nF
C409
100NF
1K
R404
15K
R414
C404
100nF
C410
330nF
15K
1%
R400
5.1k
1%
R401
21.5K
1%
R410
5.1k
1%
R411
100k
1%
R421
51k
R420
100k
R431
C423
100nF
R426 51k
R427
39.2k
R429
NC
470k
R428
10k
R437
TP400
TP401
100K
R432
1%
R423
5.36k
1%
R424
15k
100K
R506
C507
100nF
100k
R512
47k
R509
51
R511
Boost_10V
Boost_EN
AGND
100K
R508
1K
R515
1
32
Q3
MMBT3904
AGND
47K
R505
100K
R514
AGND
3k
R513
1
32
Q5
MTP3401N3
VBAT_1
100k
1%
R433
1
32
Q7
MMBT3904
AGND
C427
100nF
100k
1%
R435
AGND
47k
1%
POWER_ON R434
10K
R436
C402
NC
4.7K
R442
AGND
USB+ 5 V
AGND
AGND
10K
R419
AGND
10V
C420
10UF 10V
C412
10UF
5.1
R430
AGND
VCC_audio_3V3
100k
5%
R438
13k
1%
R440
VCC_AMP_10V
S
S
S
G
4
3
2
1
D5
D6
D7
D8
Q1 MTB04N03
AGND
C159
1.5nF
AGND
VCC_switch_3V3
100K
R173
10K
R172
VCC_switch_3V3
CHARGE_in_STATU(/CHG)
AGND
1
32
Q21
MMBT3904
C408
1uF
C424
1uF
C425
1uF
C403
100NF
C417
100NF
C418
100NF
1uF
C405
C419
1NF
C506 2.2nF
C429
10NF
C505
33NF
charge2_sys_5V
SYS_PWR_SHUTDOWN
1
3 2
Q6
MTP3401N3
SDR
L402
100 @ 100MHz
27k
R507
TP1
TP2
TP3
0603
5%
R443
10 ohm
TP48
TP49
6.3V
C401
22UF
6.3V
C430
22UF
USB+ 5 V
1%
R439
120K OHM
USB+ 5 V
DC_BIAS
5
4
3
62
1
8
7
Q2
ME4435
C513
100NF
5
4
3
2
1
J401
CONN JST B 5B-PH-K-S(lying)
V+ 5
OUT 4
-IN
3
IN
V-
2+
1
U8
LMV331TP
AGND
OUT 5
BP/FB 4 EN
3GND
2IN
1
SGM2036_3.3V
U5
OUT 5
BP/FB 4 EN
3GND
2IN
1
SGM2036_3.3V
U3
AGND
C428
100NF
AGND
C431
100NF
C432
10NF
VCC_slg46140
VBAT_1
10V
C123
10NF
10V
C128
10NF
charge2_sys_5V
1 2
L501
MCF-1040-1R5-N2
1 2
L401
MCW-0530-2R2-N2
1
32
Q4
MMBT3904
+
100uF/16V
+-20%
C508
MP16VL100MC5R7
10NF
1 2
C512
NC
12
C511
12
D403
SS1040(SOD-123)
12
D404
SS1040(SOD-123)
TP402

7-6
f
e
c
d
b
a
C803 C804
J310
1
2
3
Circuit Diagram-AUX Board
J301
CK3.5-97-04 ESD0402V18C15
ESD0402V18C15

7-7
A
A A A
Circuit Diagram-KEY+LED Board
R193 NC
power
JBL_Link_key
R201
VCC_3V3
C192 10nF
AGND
TP46
R190
200 ohm
white power
D12
R189
200 ohm
D21
AGND
R198
200
BT blue LED
D23
R194
NC
R197
200
BT blue LED
D22
R199
200 ohm
D24
R200
200 ohm
D25
TP461 TP462
Battery >75% white
D15
Battery 60-75% white
10K
Battery 15-30% white
J11
1
2
3
4
5
6
7
8
9
10
11
12
13
0.5 S-CX-13PWB
TP45
TP44
TP43
TP42
TP41
TP40
TP39
TP38
JBL_Link_white LED
AGND
D16 D17 D18 D19 D20
TP36
TP37
AGND AGND AGND AGND AGND AGND
Battery 30-45% white
Battery 45-60% white
Battery <15% Red
K
A
K
K
A
K
A
K
A
K
A
K
A
K K K
A
K K
A