Hitachi 32PD5000 - Page 41

32
32PD5000/42PD5000 (PW1)
41
32PD5000/42PD5000 (PW1)
Trouble of Sub picture
A
re waveforms at pin1(Y),
pin3(CB) and pin5(CR)
of PYS?
Check Formatter PWB
Yes
No
A
re waveforms at pin 33(Y), 32(CB)
and 31
(
CR
)
of I202?
Yes
Check Q208, Q209, Q214, Q215, etc.
No
Component Input RF(TV) / Video Input
A
re waveforms at pin9(Y), 11(CB)
and 13(CR) of I202?
A
re waveforms at pin45(Y), 47(CB)
and 1(CR) of I202?
Check I202
Check Input terminal
No
No
Yes Yes
No
Are waveforms at pin21(Y), 22(CB)
and 23(CR) of I502?
Check Q511, Q512,
and Q513
Yes
No
Are waveforms at pin1 of I502?
Check I502.
Yes
No
Are waveforms at pin53
of I201?
Check Q202, etc.
Yes
No
Check I201, U101 etc.