Help and question on Hitachi P50H4011 P50H401

[Yannick99]

Hi,

i'm fixing an old Hitachi P50H4011. The upper buffer is defective. If i unplug this one, i can see the bottom picture but with some strange corors. See picture. So i'd like to know if the problem is only the upper buffer of there are other problem ? What do you think ?

[Andrew F. Ali]

Re: Help and question on Hitachi P50H4011 P50H401

Looks like you may have a Z-Sus Bd issue as well. Change out the bad Buffer for a new one and get the whole screen going then we can go from there.

[Yannick99]

Re: Help and question on Hitachi P50H4011 P50H401

Looks like you may have a Z-Sus Bd issue as well. Change out the bad Buffer for a new one and get the whole screen going then we can go from there.

thank you i'll do that

[Yannick99]

Re: Help and question on Hitachi P50H4011 P50H401

Hi, i replaced upper buffer board and replaced psu bad capacitor. Now tv is working but picture interlaced... I reseat 5 times the upper buffer board just in case. Same problem. Any idea ?

[Yannick99]

Re: Help and question on Hitachi P50H4011 P50H401

anyone ?