4-6
No display on LED, and buttons do not work
No
No
No
Yes
Yes
No display on LED, and
buttons do not work
Check whether there is
correct contact between
CON301 and CN5
Correct connection
Fix power supply board top
a power supply for should
electric circuit
Check the U1’s pin 131,132,133
arrive the CN5 connect condition
Correct connection
Replace U301 or LED
Yes
Yes
Yes
No
Check VCC(+5v) voltage
on the power and front
board
Check there are CS, DATA
and CLK signals on CON301
on the front board.
1.Check whether bad solder exists on
U301 and pins of LED,
2.Check whether the circuit connected to
K302, K303, K304 and K301 is broken,
3.Check whether R300, R301 and R302
are open-circuit.
Trouble shooting chart
CN5 (PIN 2 CLK)
CN5 (PIN4 DOUT)
Содержание DVP3136/94
Страница 34: ...Input Output Board Print_Layout Bottom Side for DVP3136 94 6 10 6 10 ...
Страница 35: ...Switch Board Print_Layout Bottom Side for DVP3136 94 6 11 6 11 ...
Страница 36: ...Amplifier Board Print_Layout Top Side for DVP3136 94 6 12 6 12 ...
Страница 37: ...Amplifier Board Print_Layout Bottom Side for DVP3136 94 6 13 6 13 ...
Страница 38: ...Front Board Print_Layout Bottom Side for DVP3136 94 6 14 6 14 ...
Страница 39: ...Power Board Print _Layout Bottom Side for DVP3136 94 6 15 6 15 ...
Страница 40: ...Main Board Print_Layout Top Side for DVP3136 94 6 16 6 16 ...
Страница 41: ...Main Board Print_Layout Bottom Side for DVP3136 94 6 17 6 17 ...