Negative eMac Display

Our school has four eMacs. One of them, a 1GHz,
10.3.9 Panther, 256 MB RAM, and out of warranty, has
started to have a display problem. The display is
showing negative colours, like white shows as black,
blue shows as orange etc. This only affects our
Student account, the Teacher account and
Administrator accounts are just fine. Can anyone help
me? I would hate to have to tell someone to take the
entire machine to the Yorkdale Store to get it fixed,
as it is a long drive away. Thank you for responding
to this issue.
I just had this exact thing happen to my eMac last night. Im at work, so I'll post a follow up later when I get home. This started right after I started remotely controlling the Mac via Chicken-of-the-VNC in full screen mode from my powerbook (the eMac is in the basement). I bet anything that the key combo to toggle in/out of VNC fullscreen also sets some of the options mentioned to change the display.
Thanks for the info, I'll post a follow up.
eMac, 17" PB Mac OS X (10.4.3)
eMac Mac OS X (10.2.x)

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Is there any way to display an XBox through my eMac display?

farmerdudley,
Welcome to the Apple Discussions!
Sorry, but no: the eMac's miniVGA port is output-only (to support mirroring to an external display using the miniVGA adapter).

Negative sign display for CURR field in ALV grid report

I have a field BETRG defined as CURR field of length 15, decimal places 2. The value may be negative or positive. In case of negative values I am using EDIT_MSK option in the field catalog to bring the negative sign to the left of the value as shown below.
Quote
CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
    EXPORTING
      i_program_name         = sy-repid
      i_internal_tabname     = 'LT_FINAL'
      i_inclname             = sy-repid
    CHANGING
      ct_fieldcat            = fieldcat[]
    EXCEPTIONS
      inconsistent_interface = 1
      program_error          = 2
      OTHERS                 = 3.
LOOP AT fieldcat.
    CASE fieldcat-fieldname.
        WHEN 'BETRG'.
        fieldcat-ctabname = ' '.
        fieldcat-cfieldname = ' '.
        fieldcat-edit_mask = 'RRV_______________.__'.
    ENDCASE.
    MODIFY fieldcat.
ENDLOOP.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      i_buffer_active    = 'X'
      i_callback_program = sy-repid
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      it_events          = gs_events
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      OTHERS             = 2.
Unquote
On displaying the report using 'REUSE_ALV_GRID_DISPLAY' as shown above, when the value of BETRG is a smaller number like say 624, then the ALV output appears as '-            624.00' instead of '-624.00'.
Is there any way that I can remove the space in between the negative sign and the number before displaying the ALV output using 'REUSE_ALV_GRID_DISPLAY'?

Hi Deepak,
I tried this and found that this doesn't work in case of currency field. Once you move back the char field (with negative sign to the left and condensed) to the currency field, the negative sign again moves back to the right.
I think that the only way a negative sign can be brought to the left of the currenct field is by using edit_mask of field catalog as I have shown above.
Regards,
Shayeree.

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When the screen died it acted odd for a few weeks (shrinking, shuttering, blinking with a quick on/off) and then just went black. Once in a very great while it will suddenly pop to life, run for a few hours and then snap to black again. When it does come to life the resolution and colors are grand.
Do you all think there may a home fix for the display? A job for a pro? Forget a fix and buy a new monitor to mirror to?
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Message was edited by: Hawkfalco

The specific video problem that the good hobo is recalling for the first eMacs was a faulty IVAD cable. It included a shrinking and/or distorted image, a "banding" across part of the screen, and was often appompanied by a sound show of pops and sizzles. There was a repair extension program that fixed the problem without cost to the buyer, but it's long since expired.
However, most of those eMac 700s suffering video problems showed symptoms within months of purchase. By the time we bought ours (Aug 2002), the problem was gone, so I'm not sure that our diagnosing a known defect that waited so long to appear is a complete picture of your issue.
Does the external monitor still work if you put it back on the eMac?
If you live in the Western US, there is a shop in Oregon that does good things for eMacs. The image of the cable I linked is from their web site. However, if you've not close enough to drive the computer, the cost of shipping a 50-pound eMac to them can be more than a used, working eMac costs.

EMac Display "red only"

I recognized, that the eMacs colour settings changed to a warmer tone, which could not be corrected using monitor settings control panel.
Suddenly the Display colour changed to red. No other colours but the scale from red to black. The device is 14 months old!
Changing the CRT is more than 500.- in Germany, which exceeds the limit for low-end hardware reparatures in my feeling.
But, maybe it isn't the tube? Can the video logic controller produce such phenomena?
Hope, that someone has an idea
Greetings
Karl Heinz

Hello Karl,
Try Resetting the PRAM. While I doubt this will help, it is worth a shot.
It really sounds like the Video Logic board is shot. This isn't going to be cheap to replace either. Take it in to a service center and see what they say. If it is the board, it will cost you less to buy a new computer.
Good luck,
Grant

EMac display problems connected to FCP problems?

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I finished the project on the G4 in the studio and moved it back (via ethernet network) to the eMac. When I did this, the problem came with it. In addition, whenever I put text on a project in FCP, it would be green and partly transparent.
Then I noticed certain buttons in FCP were not readable on a few pop-up menus (The 'set scratch disks' menu in particular). There are a black pixelated rectangle with the button-ends instead. Also, when I run Toast Titanium (for burning TS folders from DVD Studio Pro) there are several lines across the program window that appear static-y.
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First of all, your last question - when you trash prefs it removes the limit on Capture now. That tells FCP to allocate every last bit of disk space when doing a capture now, thus the beach ball when capturing Now to external drives. Go into your prefs and limit Capture Now. Also, if you are running Norton or Virex, don't. They will also cause the beachball during capture. You can read all about it in Shane's stock answers at the top of the forum.
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I would bet you have another bad display.
I went through 4 emacs, 8 video boards and 3 logic boards as a result to my display issues. I asked apple if anyone else had been experiencing these problems and they all said no, not at all. Well now they have a series of serial numbers that are bad and my emac falls into it.
My problems were screens going dark, a extremely blurry screen, unbearable high pitch squeels, a Cyan and Magenta screen, and now I have another problem that will be looked at today, (bright pinpoint of light when I put machine to sleep).
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When does the screen shake? If after starting up or waking from system sleep, that's the built-in degaussing and is normal. Otherwise, can you tie the shaking down to any particular actions? If the bottom of the screen shakes when the hard drive is in heavy use, the metal cage that's supposed to shield the CRT may be loose. If the shaking can be associated with sound playing at moderate to high volume through the internal speakers, try switching to a set of shielded external spreakers (you can get external speakers for anywhere from US$10 to 200+ depending on how much quality you want to buy).
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I just took my emac in regarding this issue...the genius told me that is was past the three year extension but he said he would cover it anyway...I guess I got lucky. Maybe more will have a kind hearted tech too!

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that is really strange that that would happen after an upgrade. you could try any number of things to narrow things down. first i would try pulling the /library/preferences/systemconfiguration/com.apple.powermanagement.plist to the trash and restarting the computer. if that doesn't help, then try booting to the tiger install disk and running disk repair. http://docs.info.apple.com/article.html?artnum=106214 if that doesn't help, try doing a pmu reset. instructions are in step 6 of this article. http://docs.info.apple.com/article.html?artnum=34885 if your emac is ati graphics or later the reset button is on the other side. (the right). let me know if you make any progress and good luck. [ 8 ) ]

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Hi. I don't think that it is possible to fix the lines on your screen. I'm thinking that maybe you had placed a magnet near the CRT display which causes the colors to get distorted and also the picture loses clarity and detail. When this happened to me I restarted the system right after it happened and it was normal.

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HI,
I am using ALV Display, the field has a negative value in internal table but while displaying the negative sign is converted to '/' sign.
Can you plz tell me how to correct the same?
Regards,
Ashu Arora

Dear Ashu Arora,
Method SET_SIGN ofClass CL_SALV_COLUMN is used to set the sign. Method HAS_SIGN is used to check if it is displayed in the output.
Hope this will help.
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Naveen.

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Hello, When we start up this eMac after being turned off for a long time, we get through the password screen and the programs load, but while doing this the display starts getting smaller and kinda pulsates. This gets worse as the screen gradually gets smaller and then Shuts Down completely.
We can wait a few minutes, unplug the eMac, plug it back in, start it up, but we don't even get to the Desktop before it turns itself off.
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Thanks!
PhilW

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The problem is really that you have introduced those resonances. What if the resonance happens to be at the same frequency as your desired signal? Then the resonance may get so large as to destroy the accelerometer! If the frequencies are close but not exactly the same, it becomes difficult to design a fliter which can adequately separate the signals without too much error on the desired signal.
The best solution is to modify the metal surface or the attachment method so that the resonance does not occur or else occurs at a frequency far removed form the desired signal frequency.
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EMac display has green & red blobs on left of screen and is pinched.

Hi!
I was using my eMac (as you do) when all of a sudden there was a loud POP! and the whole machine shut off in an instant. I thought it was a gonner, but to my surprise it powered back up but with large green and red (magenta) blobs on the left 1/3 of the screen, and also that side of the screen was slightly vertically pinched; the right hand side of the screen looks perfect and I used the machine to back up my data, all seemed fine and dandy (except for the display).
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