Philips 32PHT4001/60 Service Manual page 58

No power
N
Test PCN5 has 220V
AC or not
Y
N
Test PEC9 has 310V
voltage or not
Y
Test PD6,PD10,PD15
N
has 12V,5V output or not
Y
N
Test PU3
has 5V output or not
N
Test U114
has 3.3V output or not
N
Test U101U18,U105,U2
has 3.3V,1.8V,1.2
output or not
Check whether the power
cord socket connection is
normal
Check PF1,PL1,PD1-
PD3, is normal or
not
CHeck
PQ1,PU1,PT1, is
normal or not
Check PU3 is normal or
not,If not,change it
Check U4 is normal or
not,if no,change it.
Which IC has not
voltage ,change it
directly
59
Testing
U204,U201,Y201 N
Y
upgrade software
Y
repair OK
Y
change
U204,U2
01,XY201