Samsung Harman JBL NANO K Series User manual

Service Manual
NANO K SERIES
Powered Monitors
K3 K4 K5 K6 K8 KX
Version A - 12/21
1

Exploded View Diagrams
Block Diagrams
Bill of Materials
Table of Contents
Safety
Schematics
NANO K Series Service Manual
Version A - 12/21
2

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 dry cloth.
7. Do not block any ventilation openings.
Install in accordance with manufacturer’s
instructions.
8. Do not install near any heat sources such
as radiators, heat registers, stoves or other
apparatus that produce heat.
9. Do not defeat the safety purpose of the
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, conven-
ience receptacle and the point where the
power cord connects to the apparatus.
11. Only use attachments/accessories specified
by the manufacturer.
12. Unplug this apparatus during lightning
storms or when unused for long periods of
time.
13. Refer all servicing to qualified service
personnel. Servicing is required when the
apparatus has been damaged in any way,
including: power-supply cord or plug is dam-
aged, liquid has been spilled or objects have
fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not
operate normally, or has been dropped.
14. The appliance coupler of the power supply
cord is used as the ultimate disconnect de-
vice from the mains. The appliance coupler
shall remain readily operable.
15. The apparatus shall be connected to mains
socket outlet with a protective earthing
connection.
16. Any changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s authority to
operate the equipment.
WARNING:
• To reduce the risk of fire or electrical shock,
do not expose the apparatus to rain or
moisture.
• Do not expose the apparatus to d ripping or
splashing and do not place objects filled with
liquids, such as vases, on the apparatus. No
naked flame sources, such as lighted can-
dles, should be placed on the apparatus.
The exclamation point within an equilater-
al triangle is intended to alert the users to
the presence of important operating and
maintenance (servicing) instructions in
the literature accompanying the product.
The lightning flash with the arrowhead
symbol, within an equilateral triangle, is to
alert the user to the presence of insulated
“dangerous voltage” within the products
enclosure that may be of sufficient magni-
tude to constitute a risk of electric shock
to humans.
This device is designed and evaluated
under the condition of altitude below
2000 meters above sea level; it can only
be used in locations below 2000 meters
above sea level. Using the device above
2000 meters could result in a potential
safety hazard.
This device is designed and evaluat-
ed under the condition of non-tropical
climate; it can only be used in locations
in nontropical climate areas. Using the
device in tropical climate areas could
result in a potential safety hazard.
CAUTION: TO REDUCE THE RISK OF ELEC-
TRONIC SHOCK - DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE. RE-
FER SERVICING TO QUALIFIED PERSONNEL.
DO NOT EXPOSE THIS APPARATUS TO RAIN
OR MOISTURE.
İ2000
m
Safety
NANO K Series Service Manual
Version A - 12/21
3
Table of Contents

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Exploded View Diagrams
NANO K Series Service Manual
Version A - 12/21
4
Table of Contents

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NANO K Series Service Manual
Version A - 12/21
5
Table of Contents

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NANO K Series Service Manual
Version A - 12/21
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Table of Contents

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NANO K Series Service Manual
Version A - 12/21
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Table of Contents

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NANO K Series Service Manual
Version A - 12/21
8
Table of Contents

MODEL NAN
O
O K
6
6 SPEAKER
NANO K Series Service Manual
Version A - 12/21
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Table of Contents

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NANO K Series Service Manual
Version A - 12/21
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Table of Contents

M
MODE
L
L
:
: NAN
O
O K
X
X BLUETOOT
H
H VOLUM
E
E CONTROLLER
NANO K Series Service Manual
Version A - 12/21
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Table of Contents

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1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
Power supply
+1dB
0dB
-1dB
RCA input
HF TRIM
Block diagram
DWG NO:
PART NO:
PART NAME:
PRODUCT MODE:
Page Number:
UNIT: MM
SIZE: A3
REV: A1
DRAW BY:
CHECKED BY:
APPROVED BY:
DATA:
DATA:
DATA:
Nano K5/K6/K8
PLACE NO DESCRIPTON DATA
2017-12-15
1/1
AGND
REV
MCU
SN8P2720
AMP
OP
INPUT
Nano K5/K6/K8 Block diagram
OP
OP
GAIN
min-max
OP
SIGNAL DET
SGND
Hi Pass
Power Amplifier
Class AB
4ȍ
1
2
3+
_
LIMITER
INPUT
MIX
OP
INPUT
OP
Transformer:
TDA7294
1
3
2
XLR input
1
2
3
4
5
TRS input
-
+
G
G
-
+
SGND
INPUT
OP
1
2
3
4
5-2dB
OP
+1dB
0dB
-1dB
HF TRIM
OP
1
2
3
4
5-2dB
LOW Pass
OP
Power Amplifier
Class AB
TDA7294
4ȍ
N
L
ENL
FUSE 3
2
1
CZ1 AC INPUT
15.5V~*2 1.8A
13.5V~*2 1.2A
JBL NanoK5 Transformer:
20V~*2 1.7A
13.5V~*2 1.2A
JBL NanoK6 Transformer:
25V~*2 2A
13.5V~*2 1.2A
JBL NanoK8 Transformer:
T500mA/250V FOR 220V-240V
JBL NanoK5 FUSE:
T800mA/250V FOR 220V-240V
JBL NanoK6 FUSE:
T1A/250V FOR 220V-240V
JBL NanoK8 FUSE:
UV DISPLAY
JINXIN LV
HF HF HF
LF LF LF LF
Block Diagrams
NANO K Series Service Manual
Version A - 12/21
12
Table of Contents

1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2018-9-6 Sheet of
File: C:\Documents and Settings\..\KX .SchDocDrawn By:
MCU
SN8F2720
LED
GREEN BLUE RED
+5V
Rotary encoder
Re1102EG3
A
B
NJW1159V
CHL
CHR
NJW4580
NJW4580
CHL
CHR
XLR&TRS
XLR&TRS
LEFTINM
LEFTINP
RIGHTINM
RIGHTINP
TPA6133A2 Headphones
3.5 STEREO
OUTL
OUTR
LOUT2
ROUT2
MUTE LACTH CLK DATA
RCH
NJW4580
LCH
NJW4580
INL
INR
MC33078
MC33078
BM830
DACL
DACR
3.5 STEREO
CHL INPUT
CHR INPUT
L+
GND
L-
R+
GND
R-
AUX-LIN
AUX-RIN
NANO KX Block diagram
AC POWER INPUT
100-240VAC
50Hz/60Hz
DC POWER
SUPPLY
USB-MICRO
DC 5V
TPS65133
+5V
-5V
GND +5VS
+5V
+5V
+5V
+/-5V
BT DETECTION
+/-5V
+/-5V
+/-5V
+/-5V
+/-5V
+5V
MAIN BOARD
SCL SDA UTX URX
MOSI
16
17
18 19 20 21
4
5
6
7
8
910
13
11
2
12
13 14 15
INPUT
OUTPUT
OUTPUT
OUTPUT
AUDIO VOLUME STEREO
HEADPHONE AMP
BLUETOOTH
OP
OP
NANO K Series Service Manual
Version A - 12/21
13
Table of Contents

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1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DWG NO:
PART NO:
PART NAME:
PRODUCT MODE:
Page Number:
UNIT: MM
SIZE: A3
REV:A1
DRAW BY:
CHECKED BY:
APPROVED BY:
DATA:
DATA:
DATA:
PLACE NO DESCRIPTON DATA
MJ 2018-01-12
1/1
REV
120R/100M
L2
120R/100M
L3
101
C43
101
C44
SGND
R69 10K
R74 10K
R62
47K
R63
47K
NJM2060 1
2
3+
_U1A
NJM2060 7
6
5+
_U1B
R78 10K
R79 10K
101C61
101C62
R92 10K
R93 10K
R100 36K
101C71
R101 36K
101C72
C60
105
C58
105
VCC/2
VCC/2
VCC/2
VCC/2
101
C38
AUX IN
RCA IN
NJM2060 1
2
3+
_U4A
IN4
11
ST-BY 7
VCC2 13
IN1
4
VCC1 3
SVR
6
SGND
9
PGND
8
IN3
12
IN2
5
OUT1 1
OUT2 2
OUT3 15
OUT4 14
DIAGNOSTICD
10
AMP
U9
STA540
R110
10R 474
C84
R113
10K
101
C80
SGND
R111
10R 474
C85
R114
10K
101
C81
SGND
3300u/25V
C91
104
C90
V+
GND
SGNDGND
MUTE
R90 10K
R91 10K
SON
NJM2060 1
2
3+
_U2A
NJM2060 7
6
5+
_U2B
TRS IN
PRE
AMP
300R 100MHzL4
300R 100MHz
L5
101
C45
101
C49
10KR70
10K
R71
10K
R76
10K
R80
101C63
ESD1
ESD
INL+
INL-
BALANCE IN L
SGND
C53
105
C54
105
300R 100MHz
L6
300R 100MHz
L7
101
C46
101
C50
10KR72
10K
R73
10K
R77
10K
R81
101C64
INR+
INR-
BALANCE IN R
SGND
C55
105
C56
105
R94 10K
R95 10K
VOL
VOR
VIL
VIR
VCC/2
VCC/2
L
R
NJM2060 8
9
10 +
_U2C
NJM2060 14
13
12 +
_U2D
R98 15K
101C69
VCC/2
R68 10K
C57
105
DACL
R75 10K
C59
105
DACR
DACL
DACR
R65
680K
R57
1K8
R52
10K
R59
10K
C36
105
R55 10K
101C39
VCC/2
VCC/2
R58
4K3
R66
18K
SIG SEN
NJM2060 7
6
5+
_U3B
NJM2060 1
2
3+
_
U3A
C51
682
C47
122
R86 4K7
R83
NC
VCC/2
R82
2K2
R88
910K
NJM2060 7
6
5+
_U4B
C67
682
C65
104
R96
10K
NJM2060 14
13
12 +
_U4D
R99 15K
101C70
VCC/2
R64 680K
R56
1K8
R53
10K
R61
10K
C37
105
R54 10K
101C40
VCC/2
VCC/2
R60
4K3
R67
18K
NJM2060 8
9
10 +
_U3C
NJM2060 14
13
12 +
_U3D
C52
682
C48
122
R87 4K7
R85
NC
VCC/2
R84
2K2
R89
910K
NJM2060 8
9
10 +
_U4C
C68
682
C66
104
R97
10K
R102
10K
R103
10K
R115
1K R116
106
GND
1
3
2
5
4
JK1
JK-3.5-5
1
3
2
GND
JK2
JK-6.35-3P
1
3
2
GND
JK3
JK-6.35-3P
2
3
1
4
RCA1
RCA2A R120 10K
R121 10K
R122 10K
R123 10K
R124
10K
R125
10K
101
C101
101
C102
R127
1K
R128
1K
R129
1K
R130
1K
EGND
1
2
3
4
5
CN5A
VR
C105
225
R131 10K
R132 10K
120R/100M
L9
120R/100M
L10
101
C107
101
C108
SGND
226
C87
1
2
3
4
5
CN5B
VR
474
C83
VOL
VOR
VIL
VIR
1
2
3
VR1A
B5K
4
5
6
VR1B
B5K
474
C82
1
2LF
CN7L
1
2
SPK R
CN8
0.32mH
L1H
R1H
1R/5W
1
2HF
CN7H
+
3.1UF
C2H
+
JBL NanoK3
C74
105
C75
105
PH_L
PH_R
R11L 3.65K
101C8L
VCC/2
R10L 10K
R14L 3.65K
101C9L
VCC/2
R13L 10K
1
2
3+
_
U10A
NJM4580
7
6
5+
_
U10B
NJM4580
R9L 10K
R12L 10K
C1L
105
VCC+ 1
OUTA 2
INA 3
INT 4
VREF 5
SENSE
6
SW
7
INB
8
OUTB
9
GND
10
U1L
NJM2761RB2
R5L
6.2K
R7L
10K
R6L
NC
+5V
224
C3L
223
C4L
225
C5L
GND
+5V
R8L
0R
NC
C6L
VCC/2
Limitter
R1L
1K
R3L
1K
R2L
NC
R4L
NC
C2L
105
C103
225
C104
225
105
C41
105
C42
Schematics
NANO K Series Service Manual
Version A - 12/21
14
Table of Contents

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DWG NO:
PART NO:
PART NAME:
PRODUCT MODE:
Page Number:
UNIT: MM
SIZE: A3
REV:A1
DRAW BY:
CHECKED BY:
APPROVED BY:
DATA:
DATA:
DATA:
PLACE NO DESCRIPTON DATA
MJ 2017-3-1
1/1
5V
5V
SON
VCC
STBY
MUTE
Temperature
STANDBY SIGNAL SENSE
SIG SEN
LED SIGNAL SENSE
100u/25V
C1
GND GND
101
C6
47K
R17
470R
R18
2SC1815
Q11
GND
R13
1K
V+
GND
104
C15
GND
104
C19
GND GND
104
C25
GND GND
+5V
104
C4
R22 0R
104C16
V+
VCC
TL074
411
+
_
U2E
TL074
411
+
_
U1E
104
C5
104
C7
104
C10
NC
C11
NC
C13
10K
R21
10K
R23
220u/10V
C18
104
C20
GND
VCC/2
AUDIO_DET
POWER
1
2 3
IN OUT
G
U5
HT7550
VCC
VSS 1
PO0 2
PO1 3
PO2/RST 4
PO3/SCL 5
PO4/SDA 6
PO5/UTX 7
PO6/URX 8
PO7/T2 9
P20 10 P21/AIN8
11
P17/AIN7
12
P16/AIN6
13
P15/MISO
14
P16/MOSI
15
P13/SCK
16
P12/AIN2
17
P11/SWAT
18
P10/INTO
19
VDD
20
U6
SNF8F2720
224
C2
101
C3
105
C9
224
C8
103
C14
106C21
220K
R12 10K
R14
10R
R15
47K
R19
1K
R20
2SC1815
Q10
1N4148
D2
TL074
411
+
_
U3E
GND
GND
CSB
MISO
SPI
MOSI
CLK
220u/25V
C26
104
C27
GND GND GND
220u/25V
C28
104
C29
GND GND
3V3
1
2 3
IN OUT
G
U7
HT7533
LED
3V3
GND GND
10KR42
10K
R43
10K
R48
10K
R50
101C34
105
C30
105
C31
VCC/2
10KR44
10K
R45
10K
R49
10K
R51
101C35
105
C32
105
C33
VCC/2
GND SPK_LP SPK_LN SPK_RP SPK_RN
SPK_LN
SPK_LP
SPK_RP
SPK_RN
BT
104
C24
P11
223C22
5V
R27 NC
R30
470R
DACR
DACL
TL074
411
+
_
U4E
NJM2060 8
9
10 +
_U1C
NJM2060 14
13
12 +
_U1D
V+
R16
10K
Ԣ⬉ᑇ䕧ܹ MUT Ԣ
DC13V=15W_1%
DC17V=25W_1%
STBY
GND
1R
R11
R26
10K/NTC
R29
1K
GND
GND
GND
GND
GND
3V3
R31 1K
1
2
POWER
CN9
DZ3 5V1
DZ1
15V
R24 4R7
106
C23
106
C17
R28 4K7
DZ2 5V1
R41
4R7
GND
1
AIO0
2
PIO14
3
PIO17
6
PIO10
7
SCL
8
PIO15
4
PIO16
5
GND
13
PIO12
10
PIO13
11
SPI/PCM
12
PIO5/PCM_CLK/CLK
16
PIO11
9
PIO3/PCM_OUT/MISO
14
PIO2/PCM_IN/MOSI
15
PIO4/PCM_SYNC/CSB
17
GND
18
GND
19
RESET
20
GND
21
PIO30/LED1
22
PIO29/LED0
23
VREGENABLE
24
GND
25
VBUS
26
CHG_EXT
27
VBAT_SENSE
28
VBAT
29
1V8_OUT 31
VDD 32
3V3_OUT 33
GND 34
USB_DN 35
USB_DP 36
GND 37
PIO9/UAPT_CTS 38
GND
30
PIO0/UART_RX 39
PIO7 42
PIO6 43
PIO21 44
PIO18 45
PIO31_LED2 46
GND 47
MIC_BIAS 48
LINE_AN 49
AGND 53
SPR_RN 54
SPR_RP 55
SPR_LN 56
SPR_LP 57
GND 58
RF 59
GND 60
PIO1/UART_TX 40
PIO8/UART_RTS 41
LINE_AP 50
LINE_BN 50
LINE_BP 51
BT1
BM830
GND GND
GND
GND
GND
GND
GND
C96
NC
C97
0R
C98
NC
GND GND
1
ANT1
ANT
GND
3V3
11 3
3
22
L1 L1 L2
L2 4
4
SW1
VREG
㄀ϔ󱂖䭓ᣝᓔᴎˈ LED 䮾⚕䇋∖䜡ᇍ
㄀Ѡ󱂖䭓ᣝ݇ᴎˈ
LED ♁
䜡ᇍ៤ࡳˈ
LED ᐌ҂
䜡ᇍ៤ࡳৢˈⷁᣝᮁᓔ䖲᥹ˈ
LED 䮾⚕
1
2
3
CN2B PAIR
3V3
LED
VREG
C99
101
C100
101
1
2
3
CN2A PAIR
3V3
LED
VREG
R46 1K
R47 0R
GND
G
DS
Q12
3401
PLED
474C76
105
C88
L
R
LEFTINM
1
LEFTINP
2
GND
3
RIGHTINP
4
RIGHTINM
5
SD
6
TESE2
7
TEST1
8
GND
9
GND
10
OUTR 11
VDD 12
GND 13
OUTL 14
CPVSS 15
CPVSS 16
CPN 17
CPP 18
GND 19 VDD 20
U8
TPA6133A2
SGND
SGND
SGND
+5V
474C77
474C78
474C79
105
C89
226
C86
PH_L
PH_R
1N4148
D3
VCC
S8550
Q14
47u/25V
C73
S8050
Q15
AUDIO_DET
SGND
SGND
+5V
+5V
+5V
R108 10K
R107 10K
R106 10K
R105 10K
R104
10K
R112
10K
R109
10K
R117
10K
R118
2K2
R4 2K
GND
GND
GND GND GND GND
AUX L
AUX R
AUX L
AUX R
SGND
AD
AD
+5V
AUX R
AUX L
SGND
AUX R
AUX L
4 8
+
_
U10C
4580 104
C106
SGND
101
C109
10K
R133
10K
R134
Stereo Headphones Output
1
3
2
4
+
-
GND
JK4 JK-3.5-B
ᐌᓔˈᦦܹ AUX ᥹ഄ
1
2
3
4
5
CN1A
IPOUT
1
2
3
4
5
CN1B
IPOUT
+5V
1
2
3
4
5
6
7
8
9
10
CN4A
LED
PLED
AUX R
AUX L
SGND
R5 10K
SGND
LED1
LED2
LED3
LED4
LED5
LED6
LED7
PLED
JBL NanoK3
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NANO K Series Service Manual
Version A - 12/21
15
Table of Contents

1
1
2
2
3
3
4
4
D D
C C
B B
A A
VCC
DW GNO:
PART NO:
PART NAME:
PRODUCT MODE:
SCALE: 1:1
UNIT: mm
SIZE: A3
REV: A1
DRAWN BY:
CHECKED BY:
APPROVED BY:
DATA:2016-12-17
DATA:
DATA:
JBL NanoK3
VCC
M J
LED1
GREEN
R1
75K
R2
11K
R3
43K
LED2
GREEN
LED3
GREEN
LED4
ORANG
LED5
ORANG
LED6
ORANG
LED7
RED
Q1
S8050
Q2
S8050
Q3
S8050
Q4
S8050
Q5
S8050
Q6
S8050
Q7
S8050
3K3
R32
3K3
R33
3K3
R34
3K3
R35
3K3
R36
3K3
R37
3K3
R38
GND GND GND GND GND GND GND
PLED
1
2
3
4
5
6
7
8
9
10
CN4B
LED
LED1
LED2
LED3
LED4
LED5
LED6
LED7
PLED
R1P
10K Q1P
2SC1815
R2P
300K
PLED
VCC
GND
LED8
GRE/BL
R3P
10K
PLED
NANO K Series Service Manual
Version A - 12/21
16
Table of Contents

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DWG NO:
PART NO:
PART NAME:
PRODUCT MODE:
Page Number:
UNIT: MM
SIZE: A3
REV:A1
DRAW BY:
CHECKED BY:
APPROVED BY:
DATA:
DATA:
DATA:
MJ 2018-1-8
1/1
120R/100M
L2
120R/100M
L3
101
C43
101
C44
SGND
R69 10K
R74 10K
R62
47K
R63
47K
NJM2060 1
2
3+
_U1A
NJM2060 7
6
5+
_U1B
R78 10K
R79 10K
101C61
101C62
R92 10K
R93 10K
R100 30K
101C71
R101 30K
101C72
C60
225
C58
225
VCC/2
VCC/2
VCC/2
VCC/2
101
C38
AUX IN
RCA IN
NJM2060 1
2
3+
_U4A
IN4
11
ST-BY 7
VCC2 13
IN1
4
VCC1 3
SVR
6
SGND
9
PGND
8
IN3
12
IN2
5
OUT1 1
OUT2 2
OUT3 15
OUT4 14
DIAGNOSTICD
10
AMP
U9
STA540
R110
1K
C74
225
106
C84
R113
10K
101
C80
SGND
R111
1K 106
C85
R114
10K
101
C81
SGND
C75
225
3300u/25V
C91
104
C90
V+
GND
SGNDGND
1
2
SPK R
CN8
MUTE
R90 10K
R91 10K
SON
NJM2060 1
2
3+
_U2A
NJM2060 7
6
5+
_U2B
TRS IN
PRE
AMP
300R 100MHzL4
300R 100MHz
L5
101
C45
101
C49
10KR70
10K
R71
10K
R76
4K7
R80
101C63
ESD1
ESD
INL+
INL-
BALANCE IN L
SGND
C53
225
C54
225
300R 100MHzL6
300R 100MHz
L7
101
C46
101
C50
10KR72
10K
R73
10K
R77
4K7
R81
101C64
INR+
INR-
BALANCE IN R
SGND
C55
225
C56
225
R94 10K
R95 10K
VOL
VOR
VIL
VIR
VCC/2
VCC/2
L
R
NJM2060 8
9
10 +
_U2C
NJM2060 14
13
12 +
_U2D
R98 22K
101C69
VCC/2
R68 10KC57
225
DACL
R75 10KC59
225
DACR
DACL
DACR
R65
680K
R57
1K8
R52
10K
R59
10K
C36
105
R55 15K
101C39
VCC/2
VCC/2
PH_L
R58
820
R66
18K
SIG SEN
NJM2060 7
6
5+
_U3B
NJM2060 1
2
3+
_
U3A
C51
682
C47
122
R86 4K7
R83
NC
VCC/2
R82
4K3
R88
910K
NJM2060 7
6
5+
_U4B
C67
682
C65
104
R96
10K
NJM2060 14
13
12 +
_U4D
R99 22K
101C70
VCC/2
R64 680K
R56
1K8
R53
10K
R61
10K
C37
105
R54 15K
101C40
VCC/2
VCC/2
R60
820
R67
18K
NJM2060 8
9
10 +
_U3C
NJM2060 14
13
12 +
_U3D
C52
682
C48
122
R87 4K7
R85
NC
VCC/2
R84
4K3
R89
910K
NJM2060 8
9
10 +
_U4C
C68
682
C66
104
R97
10K
R102
10K
R103
10K
R115
1K R116
10K
GND
1
3
2
5
4
JK1
JK-3.5-5
1
3
2
GND
JK2
JK-6.35-3P
1
3
2
GND
JK3
JK-6.35-3P
2
3
1
4
RCA1
RCA2A R120 10K
R121 10K
R122 10K
R123 10K
R124
10K
R125
10K
101
C101
101
C102
R127
1K
R128
1K
R129
1K
R130
1K
EGND
1
2
3
4
5
CN5A
VR
C103
225
C104
225
PH_R
R11L 3.65K
101C8L
VCC/2
R10L 10K
R14L 3.65K
101C9L
VCC/2
R13L 10K
1
2
3+
_
U10A
NJM4580
7
6
5+
_
U10B
NJM4580
R9L 10K
R12L 10K
C105
225
R131 10K
R132 10K
120R/100M
L9
120R/100M
L10
101
C107
101
C108
SGND
226
C87
1
2
3
4
5
CN5B
VR
105
C83
VOL
VOR
VIL
VIR
1
2
3
VR1A
B5K
4
5
6
VR1B
B5K
105
C82
1
2LF
CN7L
0.32mH
L1H
R1H
1R8/5W
15UF
C1H
1
2HF
CN7H
+
4UF
C2H
0.17mH
L2H
+
K4
JBL Nano K4
C1L
105
VCC+ 1
OUTA 2
INA 3
INT 4
VREF 5
SENSE
6
SW
7
INB
8
OUTB
9
GND
10
U1L
NJM2761RB2
R5L
6.49K
R7L
10K
R6L
NC
+5V
224
C3L
223
C4L
225
C5L
GND
+5V
R8L
0R
NC
C6L
VCC/2
Limitter
R1L
1K
R3L
1K
R2L
NC
R4L
NC
105
C41
105
C42
C2L
105
ぎᖗ⬉ᛳ
220u/25V
C1P
NANO K Series Service Manual
Version A - 12/21
17
Table of Contents

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DWG NO:
PART NO:
PART NAME:
PRODUCT MODE:
Page Number:
UNIT: MM
SIZE: A3
REV:A1
DRAW BY:
CHECKED BY:
APPROVED BY:
DATA:
DATA:
DATA:
MJ 2018-1-8
1/1
5V
5V
SON
VCC
STBY
MUTE
Temperature
STANDBY SIGNAL SENSE
SIG SEN
LED SIGNAL SENSE
100u/25V
C1
GND GND
101
C6
47K
R17
470R
R18
2SC1815
Q11
GND
R13
1K
V+
GND
104
C15
GND
104
C19
GND GND
104
C25
GND GND
+5V
104
C4
R22 0R
104C16
V+
VCC
TL074
411
+
_
U2E
TL074
411
+
_
U1E
104
C5
104
C7
104
C10
NC
C11
NC
C13
10K
R21
10K
R23
220u/25V
C18
104
C20
GND
VCC/2
AUDIO_DET
POWER
1
2 3
IN OUT
G
U5
HT7550
VCC
VSS 1
PO0 2
PO1 3
PO2/RST 4
PO3/SCL 5
PO4/SDA 6
PO5/UTX 7
PO6/URX 8
PO7/T2 9
P20 10 P21/AIN8
11
P17/AIN7
12
P16/AIN6
13
P15/MISO
14
P16/MOSI
15
P13/SCK
16
P12/AIN2
17
P11/SWAT
18
P10/INTO
19
VDD
20
U6
SNF8F2720
224
C2
101
C3
105
C9
224
C8
103
C14
106C21
220K
R12 10K
R14
10R
R15
47K
R19
1K
R20
2SC1815
Q10
1N4148
D2
TL074
411
+
_
U3E
GND
GND
CSB
MISO
SPI
MOSI
CLK
220u/25V
C26
104
C27
GND GND GND
220u/25V
C28
104
C29
GND GND
3V3
1
2 3
IN OUT
G
U7
HT7533
LED
3V3
GND GND
10KR42
10K
R43
10K
R48
10K
R50
101C34
225
C30
225
C31
VCC/2
10KR44
10K
R45
10K
R49
10K
R51
101C35
225
C32
225
C33
VCC/2
GND SPK_LP SPK_LN SPK_RP SPK_RN
SPK_LN
SPK_LP
SPK_RP
SPK_RN
BT
104
C24
P11
223C22
5V
R27 NC
R30
470R
DACR
DACL
TL074
411
+
_
U4E
NJM2060 8
9
10 +
_U1C
NJM2060 14
13
12 +
_U1D
V+
R16
10K
Ԣ⬉ᑇ䕧ܹ MUT Ԣ
DC13V=15W_1%
DC17V=25W_1%
STBY
GND
1R
R11
R26
10K/NTC
R29
1K
GND
GND
GND
GND
GND
3V3
R31 1K
1
2
POWER
CN9
DZ3 5V1
DZ1
15V
R24 4R7
106
C23
106
C17
R28 4K7
DZ2 5V1
R41
4R7
GND
1
AIO0
2
PIO14
3
PIO17
6
PIO10
7
SCL
8
PIO15
4
PIO16
5
GND
13
PIO12
10
PIO13
11
SPI/PCM
12
PIO5/PCM_CLK/CLK
16
PIO11
9
PIO3/PCM_OUT/MISO
14
PIO2/PCM_IN/MOSI
15
PIO4/PCM_SYNC/CSB
17
GND
18
GND
19
RESET
20
GND
21
PIO30/LED1
22
PIO29/LED0
23
VREGENABLE
24
GND
25
VBUS
26
CHG_EXT
27
VBAT_SENSE
28
VBAT
29
1V8_OUT 31
VDD 32
3V3_OUT 33
GND 34
USB_DN 35
USB_DP 36
GND 37
PIO9/UAPT_CTS 38
GND
30
PIO0/UART_RX 39
PIO7 42
PIO6 43
PIO21 44
PIO18 45
PIO31_LED2 46
GND 47
MIC_BIAS 48
LINE_AN 49
AGND 53
SPR_RN 54
SPR_RP 55
SPR_LN 56
SPR_LP 57
GND 58
RF 59
GND 60
PIO1/UART_TX 40
PIO8/UART_RTS 41
LINE_AP 50
LINE_BN 50
LINE_BP 51
BT1
BM830
GND GND
GND
GND
GND
GND
GND
C96
NC
C97
0R
C98
NC
GND GND
1
ANT1
ANT
GND
3V3
11 3
3
22
L1 L1 L2
L2 4
4
SW1
VREG
㄀ϔ󱂖䭓ᣝᓔᴎˈ LED 䮾⚕䇋∖䜡ᇍ
㄀Ѡ󱂖䭓ᣝ݇ᴎˈ
LED ♁
䜡ᇍ៤ࡳˈ
LED ᐌ҂
䜡ᇍ៤ࡳৢˈⷁᣝᮁᓔ䖲᥹ˈ
LED 䮾⚕
1
2
3
CN2B PAIR
3V3
LED
VREG
C99
101
C100
101
1
2
3
CN2A PAIR
3V3
LED
VREG
R46 1K
R47 0R
GND
G
DS
Q12
3401
R1P
10K Q1P
2SC1815
R2P
330K PLED
PLED
VCC
GND
474C76
105
C88
L
R
LEFTINM
1
LEFTINP
2
GND
3
RIGHTINP
4
RIGHTINM
5
SD
6
TESE2
7
TEST1
8
GND
9
GND
10
OUTR 11
VDD 12
GND 13
OUTL 14
CPVSS 15
CPVSS 16
CPN 17
CPP 18
GND 19 VDD 20
U8
TPA6133A2
SGND
SGND
SGND
+5V
474C77
474C78
474C79
105
C89
226
C86
PH_L
PH_R
1N4148
D3
VCC
S8550
Q14
47u/25V
C73
S8050
Q15
AUDIO_DET
SGND
SGND
+5V
+5V
+5V
R108 10K
R107 10K
R106 10K
R105 10K
R104
10K
R112
10K
R109
10K
R117
10K
R118
2K2
R4 2K
GND
GND
GND GND GND GND
AUX L
AUX R
AUX L
AUX R
SGND
AD
AD
+5V
AUX R
AUX L
SGND
AUX R
AUX L
4 8
+
_
U10C
4580 104
C106
SGND
101
C109
10K
R133
10K
R134
Stereo Headphones Output
1
3
2
4
+
-
GND
JK4 JK-3.5-B
ᐌᓔˈᦦܹ AUX ᥹ഄ
1
2
3
4
5
CN1A
IPOUT
1
2
3
4
5
CN1B
IPOUT
+5V
LED8
GRE/BL
R3P
10K
PLED
1
2
3
4
5
6
7
8
9
10
CN4A
LED
PLED
AUX R
AUX L
SGND
R5 10K
SGND
LED1
LED2
LED3
LED4
LED5
LED6
LED7
PLED
K4
JBL Nano K4
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7KHVHFRQGORQJSUHVVSRZHURII/('RII
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EOLQNV
NANO K Series Service Manual
Version A - 12/21
18
Table of Contents

1
1
2
2
3
3
4
4
D D
C C
B B
A A
VCC
DW GNO:
PART NO:
PART NAME:
PRODUCT MODE:
SCALE: 1:1
UNIT: mm
SIZE: A3
REV: A1
DRAWN BY:
CHECKED BY:
APPROVED BY:
DATA:2017-12-11
DATA:
DATA:
JBL Nano K4
VCC
M J
LED1
GREEN
R1
110K
R2
15K
R3
51K
LED2
GREEN
LED3
GREEN
LED4
ORANG
LED5
ORANG
LED6
ORANG
LED7
RED
Q1
S8050
Q2
S8050
Q3
S8050
Q4
S8050
Q5
S8050
Q6
S8050
Q7
S8050
3K3
R32
3K3
R33
3K3
R34
3K3
R35
3K3
R36
3K3
R37
3K3
R38
GND GND GND GND GND GND GND
PLED
1
2
3
4
5
6
7
8
9
10
CN4B
LED
LED1
LED2
LED3
LED4
LED5
LED6
LED7
PLED
K4
NANO K Series Service Manual
Version A - 12/21
19
Table of Contents

1
1
2
2
3
3
4
4
D D
C C
B B
A A
N
L
R1
2M
CZ2
0.1uF/280V
ENL
FUSE 3
2
1
CZ AC INPUT
R2
2M
R3
2M
R4
2M
AC Input PCB
1
2
CN03
2P/3.96
CZ1
0.01uF/280V
105 ST-22 ć
3
7
5
CN4
2
1
TO:BLK PAD
4
6
17.2V~*2 1.8A
13.5V~*2 1.2A
JBL Nano K5 Transformer:
20V~*2 1.7A
14V~*2 1.7A
JBL Nano K6 Transformer:
25V~*2 2A
14V~*2 1.2A
JBL Nano K8 Transformer:
TO:RED PAD
1
2
CN04
2P/3.96
SW1
power switch
DW GNO:
PART NO:
PART NAME:
PRODUCT MODE:
SCALE: 1:1
UNIT: mm
SIZE: A3
REV: A1
DRAWN BY:
CHECKED BY:
APPROVED BY:
DATA:2017-11-1
DATA:
DATA:
SW
JBL Nano K5/K6/K8
DESCRIPTON DATAAPPROVEDREV Place
JINXIN LV
TRANSFORMER
RD
YL
BK
YL
RD
T500mA/250V FOR 220V-240V
JBL NanoK5 FUSE:
T800mA/250V FOR 220V-240V
JBL NanoK6 FUSE:
T1A/250V FOR 220V-240V
JBL NanoK8 FUSE:
1
2
3
CN02
3P/3.96
Ёぎ
1
2
3
CN01
3P/3.96
Ёぎ
NANO K Series Service Manual
Version A - 12/21
20
Table of Contents