Question about Projection Televisions
ic8002 and ic8001 are the two convergence drive ic's located onthe left board they will be close to the back and two huge heat sinkswill be right in front of you, you can't see the printing on the ic'sfrom the back because they are pointed away from you. Remove that leftboard and you will beable to see the ic's better, make note on wherethe pluggs go, there are three plugs all the way closest to you lookingfrom the back, these three plugs can be plugged in wrong so make sureyou know which plug each one came out of. there will also be someboard screws you will need to take out and some jumper type ofconnector between the boards they flip up. The yellow fuses you needto look for are located right under the fins of the heat sink, you needto use your ohm meter and check to make sure they show shorted.
click this link for manual for more information
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Posted on Jul 20, 2008
This convergence IC issue is hitting a lot of older CRT-RPTVs
(all manufacturers since similar ICs are used). There could be issues
with the ICs, the resistors, cracked solder on the board, or all of
these. The parts can be purchased for under $100 for DIY'ers. The
repair done by a pro is typically $3-400. Once repaired, a proper
manual convergence is usually necessary and the TV looks like new
If you replace only the ICs and there is a problem with the resistors, the ICs may blow again almost immediately, so while the board is out, replace the appropriate resistors - if you buy the "kits" everything will be supplied. You should also check the board for cracked solder. Since the ICs are relatively inexpensive, you should always replace both (or however many there are) ICs when doing the repair.
If you've done the repair and something doesn't work correctly and you've tried everything else, try unplugging the TV overnight. This has resolved issues for 1-2 people.
Here are the instructions for how to do a DCAM convergence. You don't have to open the TV to do it. This is a different mode than the service menu. These instructions are mostly from the service manual with some added comments from a poster on the avs forum.
Manual Convergence for the Hitachi
1) Receive an NTSC signal.
2) Press Magic Focus to begin magic focus
3) Press magic focus again during the magic focus process to get the "stop" screen
4) While stop screen is up, press STATUS or INFO on the remote control (R/C) to bring you to DCAM mode and
the service grid
5) When you first get in here? I believe red is the selected color by default (it is flashing).
6) To choose other colors to converge, use the following buttons on the R/C:
a) "STATUS" - Green
b) "0" - Red
c) "ANT" - Blue
7) Start from the center of the screen and work your way out on one color at a time. I adjusted red across the
whole screen to match green. Then I switched to blue, and adjusted that to green as well. After you adjust blue, you
may want to go back and adjust some red again? etc. until the convergence looks good.
(a) Use 4, 6, 2, and 5 on the R/C to move the cursor position(dotted lines).
(b) Use thumb stick to move the convergence point color.
** There have been other posts in here to tape together the color filters found in the Avia DVD to help converge
lines more easily. I have used this method, and it works well for adjusting to a greater detail. Basically, you put the
red filter next to the green and adjust your red to the green line both horizontally, and then vertically. Then you do
the same with the blue next to the green. Some people recommended you should be at normal viewing distance. I
did mine from just a few feet back from the set. Maybe my eyes aren?t as good? maybe I just felt like it worked
better this way. There are some other posts also recommending using binoculars. I think it?s great that people
suggest things to make the process easier? but my girlfriend would think I was insane if she saw me with
binoculars on the couch adjusting the convergence. I don?t know? whatever works best I guess.
8 ) I did not adjust the green at all. I use the green as the guide and did not adjust the location of any green point.
This is highly suggested unless you have geometry problems.
9) When going along the lines and adjusting, you may run into the problem of getting an "S" curve on the line.
You?ll know if you get there. Basically, no matter what you do to adjust the line to be converged, the middle of the
line between the points will not straighten out (it bends between the points). To fix this, the manual recommends
going to the (7x5) mode which gives you less points to adjust. I had this problem, and the solution worked. There is
also another mode (3x3) which gives you even less points. Basically, if the set looks good, you only fine tune it in
(13x9) mode. If you have serious problems, the grids work as:
3x3 - "coarse"
7x5 - "medium"
13x9 - "fine"
10) To get to each of these patterns use the following on the R/C: (only if you need to)
1. (3x3) Press "STATUS" 5 times (only works when DCU is in uncorrected state)
2. (7x5) Press "0" 5 times
3. (13x9) Press "ANT" 5 times
Note: The grid size doesn't change, but the cursor "skips" a line.
11) If you adjust the 3x3, then you should go to the 7x5, and then the 13x9. You get the point? depending on where
you start, work your way up, and always finish on the 13x9
12) When finishing up the 13x9 mode, to get additional ?grids? on the edges of the screen, press the PIP CH button
on the remote control while in the digital convergence adjustment mode (DCAM). Fine tune the edge convergence
as necessary. To exit, press PIP CH again.
13) When convergence is acceptable, press PIP MODE to write data to ROM memory. ROM WRITE? is displayed
to alarm system that ROM will be overwritten with new data. Press the PIP MODE button again to write
displayed data to ROM.
14) DATA WRITE TO ROM will take approximately 4 seconds and no picture will be displayed.
15) Green dots will be displayed when operation is completed.
WARNING: YOU MUST DO THE FOLLOWING STEPS TO COMPLETE MAGIC FOCUS
INITIALIZATION!!! THERE HAVE BEEN MANY POSTS THAT PEOPLE HAVE HAD PROBLEMS
WITHOUT DOING THIS STEP BECAUSE THEY LOOSE MAGIC FOCUS!
16) Press MUTE to return to convergence pattern, then confirm again convergence is acceptable.
17) Press PIP MODE and then PIP CH to initialize Magic Focus. The initialize operation starts and several
windows appear during this operation. It takes about 30 seconds or less.
18 ) When green dots appear, initialize operation is finished.
19) Turn power OFF.
21) Wait a few seconds. Turn the TV on, and you should have your normal signal. Press Magic Focus button just
to make sure the magic focus still works (and that you did the last few steps properly)
Posted on Jul 13, 2008
If you would be so kind to post back the make and model, a more appropriate response could be forwarded.
Additionally, there has been numerous postings of similar concerns that may be used as reference.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
Posted on Jul 12, 2008
Can you explain the problem in a little more detail please? also make and model of the tv.
Posted on Jul 12, 2008
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Problem with Hitachi 51F500 51 in. Rear Projection HDTV-Ready Television
i want to learn how to do convergence on my tv its a hitachi rear projection i have problums with colors not aligning,could you lead me in the right direction ps: i don't have the remote so i
can't magic focus
Posted by ejaparks on Mar 03, 2011
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Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.
Here is an example photo....
Jul 04, 2008 | Philips Magnavox 9P6034C 60" Rear...
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