Correct Connection - Philips DVP3000K Service Manual

No display on VFD, and buttons do not work
No display on VFD, and
buttons do not work
Check whether there is
correct
CN301 and CN6
check-24V+12V,VCC(+5v)
voltage on the power and
front board
Check
VSDA0 and VSCK signals
on CN303 on the front board.
1.Check whether bad solder exists on
U301 and pins of VFD,
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 VFD
Yes
contact between
Yes
Yes
there are VSTB,
Yes
Yes
4-6
No

Correct connection

Fix power supply board top
No
a power supply for should
electric circuit
No
Check the U3's pin 62,63,64 arrive
the CN6 connect condition
CN6 (PIN 4 V.SCK) CN6 (PIN7 VSDA0)
No
Correct connection
Trouble shooting chart