JBL Partybox On-The-Go Service Manual page 21

Circuit Diagram-KEY PCBA
1 2
VR_TRE VR_BASS
5 4 5 4
R751 R752
0 0
A
R756 R757 R758
33K 33K 33K
SW750
SW754
SW_TA4P
Released by Eastech for Harman Industries for reference only
BASS_LED LED_SW
GUITAR_LED BASS_BOOST
GT_Button
IC750
RCI009523-0001
25
GND
9
GND
22
INTN
AW9523B
18
AD0
24
AD1
B
20
LED_SDA R782 33
SDA
19
LED_SCL R783 33
SCL
23
LED_RST R785 33
RSTN
FB774 60 VCC
S3V3
S3V3
From wireless module R801
NC
CN750
G W_MIC1
1 FB776 0 R805 0
wireless module mute
R807 NC
C
FB777 0
W+5V
WMIC_RX W_RX
FB778 0
WMIC_TX W_TX
FB779 0
7
G
CN7/20
R810 NC
Q752 3401
FB785 S D
TP812
5V W+5V
0603_100/2A
G
Q753
2SC5343
R824 100K R825 2 1
c e
68K
100K
R827 10K R828
KEY PW_EN
D
1 2
3
VR_Reverb VR_Mic1 VR_Mic2
5 4 5 4 5 4
S3V3
R750 0
R753 R754 R755
0 0 0
VR_Mic2
VR_Mic1
VR_Reverb
BK3V3
S3V3
R759 R760 R761 R762 R763
33K 33K 33K 33K NC
SW751 SW752 SW753
POWE_LED
SW_TA4P SW_TA4P SW_TA4P BT_LED POWER
SW_TA4P
BT
SW_TA4P
PLAY/PAUSE
VOL-
VOL+
BK3V3
5%~20%
17 56
R764 LD753 Red LOW BAT
P1_7 S3V3
LD763 R765
LD754
16 Amber
P1_6 R766 56 LD755 White 20%
22K
Amber
R769
15
R771 56 LD756 White 40%
P1_5
1K
14
P1_4 R772 56 LD757 White 60%
Q750
13
R773 56 LD758 White 80%
P0_7
12
P0_6 R775 56 LD759 White 100% 2SC945_SMT
11
R776 56 POWE_LED
P0_5
10
P0_4
8
R778 56 BT_LED
P0_3
7
BASS_LED
P0_2 R779 56
6
R780 56 GUITAR_LED
P0_1
5
P0_0
4
P1_3
3
R784 1K
P1_2
C789 100P
2
P1_1
C790 22UF/10V
1 R786 2 IC753A
C791 TLV9102 C792 22UF/10V
P1_0 -
1 R787
22UF/10V C793 R788
1K
3
C863 22uF/10V
+ 3K3
47P
R789
C864
C801 22UF/10V 47P
C802 R792 0 R793 100K R794 100K
22uF/10V
R796 R797 10K
12K
R799
10K
22uF/10V
MIC/GT/ Wireless mic/Source
IC755E
Guitar/Mic Control_1 13
A
Guitar/Mic Control 5 14
FB780 100
B VCC SW_+5V
6
C
12
D
SGM48754
W_MIC
Q751
W_MUTE
R818 1K
R821
C844 22UF/10V 1K R822 1K
C845 C846 100P
22UF/10V
IC757A
C865 2
47P - TLV9102 C849 22UF/10V
1 R829
C853
3
22uF/10V
+ 3K3
R848
4
IC755B
IC755A C866
C856 22UF/10V 47P
2 1 R837
R838 NC C857 R839 100K R840 100K
SGM48754 22uF/10V
0
R841 10K
R843 R844 R845
C858 C859
27K 24K 10K
22uF/10V 22uF/10V
3
4 5
S3V3 0 FB750
S3.3V
1.GND
1
0 FB751 2.VR MIC2
2
0 FB752 3.VR MIC1
3
4.VR Reverb
0 FB753 4
0 FB754 5.VR BASS
5
0 FB755 6.VR Treble
6
POWER
0 FB756 7 7.POWER/ON/OFF
BT 8.BT
0 FB757 8
PLAY/PAUSE 0 FB758 9.Play/Pause
9
VOL- 0 FB759 10.VoL-
10
VOL+
0 FB760 11 11.VoL+
LED_SW 12.Light Switch
0 FB761 12
BASS_BOOST 0 FB762 13.Bass Boost
13
Guitar/Mic Control_1
0 FB763 14.Guitar/Mic Control_1
14
15 15.GND
LED_SCL 0 FB764 16.LED SCL
16
LED_SDA 0 FB765 17.LED SDA
17
LED_RST 0 FB766 18.LED RST
18
19 19.GND
KEY PW_EN 20.KEY PW_EN
20
wireless module mute
0 FB767 21.Wireless module mute
21
Guitar/Mic Control
0 FB769 22.Guitar/Mic Control
22
23.STB_LED_CTL
56 R767 23
MIC1_DET
0 FB770 24.MIC1_DET
24
MIC2_DET
0 FB771 25.MIC2_DET
25
0 FB772 26.9V
+9V 26
27.GND
27
W_MUTE
28.W_MUTE
28
W_TX
29.W_TX
29
W_RX
30.W_RX
30
J750
TO MainBoard
NC
1.8K R790 24K
C795 100P
IC753B
6 TLV9102
-
7
R791 560
5
+ 7V
R795
4.7
S3V3 S3V3
C805 C806 C807
104 100U/10V
R802 R803
10K 10K
C814 C815
104 104
CN751
MIC1_DET
MIC1_IN
VR1_H
VR1_L
C825 22UF/10V
CN6/20
MIC_IN C826 22UF/10V
TO MIC JACK PCB
W_MIC
C827 22UF/10V
C828 22UF/10V
R815 10K/1%
R817 10K/1%
C832 104
CN753 C834
MIC2_DET
22UF/6.3V
MIC2_IN Guitar_IN
C836 22UF/10V
C843 22UF/10V
VR2_H
VR2_L
R830 NC CN6/20
TO MIC JACK PCB
R831 1.8K R832 24K
NC R833 1.2K R849 NC
R834
3 8 9
R835 6.2K
SGM48754 SGM48754 3K6
C855 100P
IC755C
6 IC757B
- TLV9102
7
R836 560
5
+
R842 4.7
7V
C860 C861 C862
104
104 100U/10V
4 5
21
6 7
OPTION
IC751 RCI003170-0001
TP784 FB768
OUT 2 IN 3
7V +9V +9V
LM317
0603_100/2A
R770
750
IC752 RCI003170-0001
FB773
TP795
OUT 2 IN 3
SW_+5V +9V +9V
LM317
0603_100/2A
R777
750
C840 C840 104 104
7V 7V
IC804 IC804
FB824 FB824 L800 L800
5 5 6 6
+18V +18V VIN VIN SW SW
FB_0805_100 FB_0805_100
4.7UH 4.7UH
4 4 3 3
EN EN FB FB
R843 R843
JW5026 JW5026
100K 100K
C803
R847 NC
+9V
IC754 104 5V
FB775 L750
5 6
+18V VIN VIN SW SW
FB_0603_100
4.7UH
R800
4 3
10K
EN EN FB FB
R804
JW5026
100K
R808 15K
C824 100P
IC756A
2
R809 10K
-
TLV9102 TO Main Board
1
R811 10K
3 CN752
R812 100K + C829 22UF/10V
R814
G
C830 10 MIC_O 0 FB781
1
22UF/10V
22UF/10V R816
Guitar_O
C831 10 0 FB782
R819 15K C833
22UF/10V
C835 100P 0 FB783
BK3V3
0 FB784
S3.3V
IC756B
6
R820 10K 0 FB786
- +18V
TLV9102 7
8
5 G
R823 100K
+
CN8/20_SMD
R826
C847 104 7V
C850 4.7
C854 22UF/10V
100U/10V
6 7
8
A
B
C
D
8