TROUBLE SHOOTING
Oscilloscope
Setting Values
Check DC
voltage
Check I
2
C& I
2
S
signal
check PWM
signal
Check L+,L-
signal
Voltage/DIV
Depend voltage
1V/div
10V/div
10V/div
TIME/DIV
500ms/div
20us/div
1us/div
500us/div
1. If press the power button, the device does not work, Please check the power flow as
blow:
1 )
Do not work
Insert the AC power
And press the power
button to see if the
machine can be started
Whether the
7.4V is ok
Replace
battery
>6.8V
Is 5V if ok?
0V
NO
Replace UBX1
NO
Replace UCY1
Replace UCY2
Is 3V3 if
ok?
Is 1V2 if
ok?
YES
NO
YES
NO
YES
Содержание JBL PARTYBOX ON-THE-GO
Страница 9: ......
Страница 15: ...60 17 1 16758 7 21 F 6 7 4 6 7...
Страница 18: ...d K Z D K Z D E K Z 2 5 y W E WKt Z K Z W E W E K Z y W E W E Z d W E h K Z W E y W E 5 7 1 5 0...
Страница 34: ...MAIN MIC AUDIO PCB LAYOUT TOP...
Страница 35: ...MAIN MIC AUDIO PCB LAYOUT BOTTOM...
Страница 36: ...RING GUITAR POWER PCB LAYOUT TOP...
Страница 37: ...RING GUITAR POWER PCB LAYOUT BOTTOM...
Страница 39: ...3 1 3 2 9 46...