Philips DVP3120 Series Service Manual page 17

Abnormal color of video picture
Check whether the 27MHz
output signal is normal.
Check whether the 3.3V
and 2.5V power supply
voltages on the decoder
board are normal.
Abnormal color of
video picture
Yes
Yes
Yes
Check whether the
video filter network
circuit is normal.
Yes
Change U1
4-7
Remark: Trouble shooting chart for
DVP3120/51/55/94/75, DVP3120K/55/93/98
No
Check Y1, R19, C32 and C33
No
Check other of power supply electric
circuit
No
Correct the connection
Trouble shooting chart