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No display on LEDD, and buttons do not work
No display on LED, and
buttons do not work
Check whether there is
correct
between CON301 and
CN5
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.
Replace U301 or LED
Yes
contact
Yes
Yes
Yes
Yes
4-16
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)
No
Correct connection
Trouble shooting chart
DVP5166K/XX, DVP5168K/XX
98
100
CN5 (PIN4 VSDA0)
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