No display on LED, and buttons do not work
No
No
No
LED and
buttons do not work
Check whether there is
correct contact
between CON1 of front board
and J 6 of decoder board
Correct connection
Fix power supply board top
a power supply for should
electric circuit
Check the U2’s pin 33,34,40,41 arrive
the J 6 connect condition
Correct connection
Replace LED or Q1,Q2,Q3,Q4
Yes
Yes
Yes
Check DV33(+3.3V)
voltage on the power
and front board
Check whether there is 0V
or 3.3V on the signals of VPLAY,STB
CLK, DATA
Check whether the circuit
connected to LED & BUTTONS
is broken,
Trouble shooting chart
Yes
Yes
No
Check wether Q1,Q2,Q3,Q4 for 3904
&LED is broken,
5-9
Содержание DVP3111
Страница 26: ...MAIN BOARD TOP 7 8 ...
Страница 27: ...MAIN BOARD BOTTOM 7 9 ...
Страница 28: ...LED LIGHT BOARD TOP PCB COMPONENT LAYOUT 7 10 ...
Страница 29: ...LED LIGHT BOARD BOTTOM PCB COMPONENT LAYOUT 7 11 ...
Страница 30: ...STB TOP PCB COMPONENT LAYOUT 7 12 ...
Страница 31: ...STB BOT PCB COMPONENT LAYOUT 7 13 ...
Страница 32: ...SET MECHANICAL EXPLODED VIEW 8 1 8 1 ...
Страница 35: ...9 0 REVISION LIST Version 1 0 Initial release ...