Hitachi 46W500 Training page 118

(8) DVD PWB Ass'y Operation Check
c)DVD Audio/Video Check
Apply 480I Y/Pr/Pb 100% Color Bar signal to
pin 12, 14 and 16 of PAA2 connector.
Y should be 1V p/p at pin 12.
Pr/Pb should be 700mV p/p at pins 14 and 16.
Is there 2V p/p +/-20% Y signal at
pin 3 of PVT connector (without Termination)?
Is there 1.4V p/p +/-20% Pr/Pb
signal at pin 5 and 7 of PVT connector
(without Termination)?
Apply 3.3V to pn 3, 5 and 7 of PPA2 connector.
Apply 1Vrms 1Khz audio signal to
pins 6 and 4 of PPA2 connector.
Is there 1.5Vrms +/- 20% 1Khz
audio signal at pins 9 and 11 of PVT connector?
2
Yes
Yes
Yes
End
No
IU01 defective
No
IU01 defective
No
IU03 defective
DP-33W
Page 09-06