I have a convergence issue with my Pioneer SD-643HD5 64" rear projection HD ready TV. I'm not a tech, just a home owner that believes this unit still has value.
I'm worried about the base grid in green. It's different in all modes. The differences creates a "shakey green line" in the places of greatest offset. On one mode the green base grid looks like a view from a blimp into a square football stadium (deep dish appearance). I've read other forums and have ordered two IC's. However, from what I gather, the unit may actually need a DCU, or at least, a wipe and reprogram of the one I've got. I may be wasting time on the IC's? I also foresee the possibility of wasting time trying to reprogram the DCU (if it's possible).
So, Questions relate to "what do I do next". I contemplate the following:
Is there a simple diagnostic to determine which component is wacked (IC's or DCU)?
Where can I find a DCU for this unit at a good price?
Will I require the service manual for "wiping and reprogramming" the DCU (this would be an attempt to NOT buy a DCU)? If so, where can I find the service manual? Will I need the manual for installing a new DCU or even installing the IC's (for calibration of convergence). I have images of taping string to the front of the set to create a grid and having a headache for a month.
Thanks for your assistance.