Question about Apex Digital GB4308 43" Rear Projection EDTV-Ready Television

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Apex rear model?

Apex rear proj hd 55 is good except for green tint inside green and red lights are bright blue is not very bright

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I would say it's a adjustment you will need, is the convergence aligment ok, to adjust this you will need to find the adjusment block in the front, this is a black unit about 4" x4" and has lot's of wires that comes in.
On this block there will writing on it focus, and screen, well your half way there.
Adjust the green screen control downard to see if it adjuses your green problem if it does, here how you adjust the rest.
First go to your menue, turn the colours off. yes off.
next put contrast to max.
next turn your brighness to 40%
Nest ajust the screen control until you no longer see any trace line of the colour you or seing so that at the end product you het the best black and white picture you can. This will give you the end resolt for best picture posible.
Adjust the other colour after, to see if you or close to the corect adjustment go back to the menu and turn contrast down you shouldn't see any trace line.
Another problem people don't understand this unit have to be clear once's every 2 years.
This I won't explain it's a very long process if done right . Rear projectors has to be clear because with time you will notice the picture looks like you have catarack. or white filtering of the picture. This is when you know it need's cleaning, I do it all the time when I go to customer home, yes I do house call's. I think I'm the last one out there, most shop what's the tv in the shop mostly to be able to control the price there about to hit you with and if the customer doesn't pay there just sale it, they have the control and not you.

I hope this help, keep in mind it's very expensive to have tv repairs, but you have to pay, this what keep's tech going without them, well you can just imagine.

What About Bob
Timmins, Ontario

Posted on Feb 13, 2008

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1 Answer

I have a 52 in. Sony HD ready rear projection tv and recently sometimes and I say sometimes because this happens randomly but the screen begins to flicker a green tint and then it shuts itself off and the...


Some of the early sets had this issue--they had bad picture tubes and set will turn rather bright red, green or blue and shut off.

The tubes for those sets (what model do you have?) are no longer available.

There may be a simple way to resolve this at least for some time depending on the model number--it will require no parts replaced and only a screw driver to adjust something in the set.

Jun 13, 2012 | Televison & Video

1 Answer

My tv screen when on turns yellow then after a while it will switch back to normal colors what can be wrong with it....


Televisions covered: all Projection with yellow picture, but not Projection TVs with a yellowish tint surrounding objects in a nearly normal picture.

Yellow = red + green
normal picture = red + blue + green (RGB). See illustration.

12_27_2011_5_00_56_am.png

Fig. 1 Additive color mixing in an RGB monitor, or RGB Projection TV.

The circuitry powering your blue output, or the blue light engine itself is starting to fail.

Operating Theory:

The lamp module shines a bright light into the optical unit; there are a series of lens and baffles, and at the top of the light engine, a lens puts the picture into a mirror which is reflected onto the screen; All video and color is processed thru the light engine. Blue most commonly fails first, leaving a yellow picture.

Dec 26, 2011 | Mitsubishi WS-55805 55" Rear Projection...

2 Answers

Contrast really dark but seems to improve after the tv has been on several hours


Hi:
You may have a problem with the inverters in the unit, they are responsible for lighting up the back panel. Check or have checked the power supply voltage to the inverters, should be around 18-24 volts DC. Also leaky capacitors on the power supply will cause this issue as well as leaky or puffy capacitors on the inverter.

Sep 08, 2011 | LG 32LG30 32 in. LCD HDTV

1 Answer

Magnavox rear proj (model# 8p6044 c102) pic is cloudy/green tint


Yes the coolant gets crud buildup in it over time which will cause the color and clarity to get very poor with obects that will glow around certain bright ojects. You can get the Phillips CRT coolant replacement kit from www.tvrepairworld.com which has the CRT coolant for all 3 CRTs and also includes the Cd with instructions on how to do the replacement.

Mar 27, 2010 | Televison & Video

1 Answer

I have a hitachi rptv model #43FWX20B and the picture has a red tint to it. Opened back up and red green and blue bulbs light up. red bulb stays bright while blue and green go dim to bright as tv plays....


Howdy;
Since you don't have any white lines with the red screen/picture I would say that the red bulb (CRT) is conducting too much. There is an adjustment control for that. The 'sceen' control is behind the speaker cover and service cover. Turn red screen control slightly to the left until you get a good black and white picture.

Good Luck, Big Irish.

Nov 22, 2009 | Hitachi 43FWX20B 43" Rear Projection...

2 Answers

Need lg 32lh30 calibration specs


I think I have a solution involving far less effort. Have you tuned your picture settings? Out of the box, the settings are ok and the presets will do the trick for most. But if you're like myself, you want the best picture possible. Here are my settings:

Picture menu:
Aspect ratio: Just Size
Energy Saving: Off
Picture Mode: Expert 2
Backlight: 35
Contrast: 90
Brightness: 54
H Sharpness: 40
V Sharpness: 42
Color: 50
Tint: 0

--Expert control menu
Dynamic contrast: Off
Noise reduction: Off
Gamma: Medium
Black level: Low
Real Cinema: On [grayed out]
Color Standard: HD [grayed out]
Color Gamut: Standard
Edge Enhancer: Off
xvYCC: Auto [grayed out]
OPC: Off
Expert Pattern: Off[grayed out]
Color Filter: Off

White balance: Warm
Method: 10 point IRE
Pattern: Outer
IRE: [see below]
Luminance: 137

-- 10 point IRE calibration
IRE: [Red, Green, Blue results, respectively, for each IRE point]
100 [-8, 1, -40]
90 [-13, -5, -40]
80 [-20, -12, -40]
70 [-17, -14, -33]
60 [-17, -12, -31]
50 [-17, -13, -26]
40 [-13, -12, -19]
30 [-6, -4, -8]
20 [-6, -4, -10]
10 [2, 3, -1]

Color management system
Red color: 2
Red tint: 0
Green color: -1
Green tint: -7
Blue color: 2
Blue tint: 7
Yellow color: 0
Yellow tint: 1
Cyan color: 0
Cyan tint: 0
Magenta color: 0
Magenta tint: -2

These are taken from CNET.com

Nov 08, 2009 | LG 32LH30 32 in. LCD HDTV

2 Answers

Green tinted people


The only time I have had issues like this was because of the Component Cables not being in the right position (the Red and Blue connections switched), or a bad Component Cable where the Blue Connection is not receiving a signal. Swap out the cable to be sure and double check that it is properly installed. Green to Green, Red to Red , Blue to Blue.
Hope this helps,
skyassoc

Jul 18, 2009 | Samsung HLN5065W 50" Rear Projection...

2 Answers

Picture calibration settings for 42lg70


Picture Menu
Picture Mode: Expert1
*Backlight: 16
*Contrast: 83
*Brightness: 53
Sharpness: 50
*Color: 55
*Tint: 0
Expert Control
  • Fresh Contrast: Off
  • Noise Reduction: Medium
  • Gamma: Medium
  • Black Level: Low
  • Real Cinema: On
  • TruMotion: Low
  • Color Standard: HD (N/A w/HDMI)
  • White Balance: Warm
  • **Method: 10-Point IRE
    • 10 IRE
      • **Red: 1
      • **Green: 2
      • **Blue: -16
    • 20 IRE
      • **Red: -6
      • **Green: 0
      • **Blue: -7
    • 30 IRE
      • **Red: -5
      • **Green: 0
      • **Blue: -4
    • 40 IRE
      • **Red: -8
      • **Green: 0
      • **Blue: -4
    • 50 IRE
      • **Red: -4
      • **Green: 4
      • **Blue: -4
    • 60 IRE
      • **Red: -6
      • **Green: 6
      • **Blue: -5
    • 70 IRE
      • **Red: -8
      • **Green: 3
      • **Blue: -10
    • 80 IRE
      • **Red: -8
      • **Green: 7
      • **Blue: -16
    • 90 IRE
      • **Red: -9
      • **Green: 5
      • **Blue: -18
    • 100 IRE
      • **Red: -10
      • **Green: 4
      • **Blue: -9
Color Management System
  • Red Color: 0
  • Red Tint: 0
  • Green Color: 0
  • Green Tint: -15
  • Blue Color: 0
  • Blue Tint: 11
  • Yellow Color: 15
  • Yellow Tint: 2
  • Cyan Color: -15
  • Cyan Tint: 0
  • Magenta Color: 0
  • Magenta Tint: -1

lg70 nice tv excellent processor just to bad there is no intensity control on color management oh well still better than what the three s are pushing block out the hype lg will be number 1 in a few years haters are starting to come around and well leds coming,

p.s. i dont work for lg just tired of losers bashing stuff because they dont own it.
im isf certified those settings are right on the money straighter than a ruler

Oct 05, 2008 | Televison & Video

2 Answers

Picture settings



Colorimetre HCFR software
AVC HD 709 calibration disk
Spyder2 colorimeter (I know most prefer the Eye-One meters, but the Spyder2 was available from my job at no cost)

Here are the settings:

PS3 Blu-Ray player

Output Format (HDMI): Y Pb/Cb Pr/Cr (important!!! NOT RGB output)
BD 1080p 24hz Output (HDMI): On (this TV can reproduce video at 48hz for accurate 2:2 pulldown)
Y Pb/Cb Pr/Cr Super White (HDMI): On (not sure if this matters)

42LG50 Settings

Aspect Ratio: Set By Program (Personal Preference)
Picture Mode: Expert 1
Backlight: 50 (Personal Preference)
Contrast: 54
Brightness: 54
Sharpness: 40 (Personal Preference)
Color: 50
Tint: 0

Fresh Contrast: Off
Noise Reduction: Off
Gamma: Medium
Black Level: Low
Real Cinema: On

White Balance: Warm
Method: 10 Point IRE

10 (-3,8,-16)
20 (15,24,-21)
30 (20,36,-22)
40 (3,19,-40)
50 (8,34,-41)
60 (10,50,-20)
70 (-5,50,-8)
80 (-16,50,18
90 (-14,50,30)
100 (-22,38,21)

Red Color: -3
Red Tint: 0
Green Color: 10
Green Tint: 0
Blue Color: 14
Blue Tint: 0
Yellow Color: 0
Yellow Tint: 1
Cyan Color: -11
Cyan Tint: 0
Magenta Color: 0
Magenta Tint: -2

Take time to get used to the settings, you may think the screen looks dull at first. The truth is most people have way too much contrast on their TVs.
These settings will also work for Cable or Dish hookups, in which case you may change the Noise Reduction option to Medium to reduce signal noise.

OR....

2POINT IRE

Backlight: 65
Contrast: 55
Brightness: 45
Sharpness: 50
Color: 45
Tint: 0

Fresh Contrast: Off
Noise Reduction: Off
Gamma: Medium
Black Level: Low
Real Cinema: On

White Balance: Warm
Method: 2 Point

Red Color: 3
Red Tint: 0
Green Color: 9
Green Tint: 2
Blue Color: -1
Blue Tint: 0
Yellow Color: 6
Yellow Tint: 5
Cyan Color: -1
Cyan Tint: 1
Magenta Color: 2
Magenta Tint: -1

Sep 15, 2008 | LG 42LG50 42 in. LCD HDTV

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