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No display on LEDD, and buttons do not work
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.
Great user manuals database on
No display on LED, and
buttons do not work
Yes
Check whether there is
correct
contact
between CON301 and
CN5
Yes
Check VCC(+5v) voltage
on the power and front
board
Yes
Check there are CS, DATA
and CLK signals on CON301
on the front board.
Yes
Yes
Replace U301 or LED
UserManuals.info
4-6
Remark: Trouble shooting chart for
No
Correct connection
No
Fix power supply board top a power
supply for should electric circuit
No
Check the U2's pin 97
arrive the CN5 connect condition
CN5 (PIN 2 V.SCK)
CN5 (PIN4 VSDA0)
No
Correct connection
Trouble shooting chart
DVP3160K/XX
98
100
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