Philips 160E1SB/93 Service Manual page 38

38 38 Meridian 1
(3). White screen
White screen
Measure Q404 base is low level?
OK
Check Q404, Q405 is broken or CN405 solder?
NG
OK
Replace Panel
NG
Check Correspondent
component.
X401 oscillate waveform is normal
NG
OK
Check reset circuit of U401 is normal
NG
Check Correspondent
component.
OK
Replace U401
Replace X401