Horizontal line through screen and low screen lighting

ok
what country, outside usa they have autoleveling lights by LAW.
so, not knowing what country this questions is impossible
the world really is a big places and 1million laws on cars.
sorry.
ok pretending USA. 03 WJ jeep
posted FSm 300 time here, full book.
adjust in what direction.
up or down
left or right
in the usa, left and right was banned by our gov long ago.
so can be missing on newer cars.
that way, "badguys" dont blind the innocent and cause them an accident. but up and down is free game. it seems
chapter 8L
page 6

To adjust headlamp alignment, rotate alignment
screws to achieve the specified low beam hot spot
pattern.
A properly aimed low beam headlamp will project a
high intensity light pattern on the screen with the
horizontal cut-off line aligned with the tape line 130
mm (5.12 in.) below the headlamp centerline. The
intersection of the horizontal and 15 degree cut-off
lines in the projected pattern should align to the
intersection of the headlamp centerline vertical tape
line and the tape line 130 mm (5.12 in.) below the
headlamp horizontal centerline





you can read that here.
click lamps and read.


http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

its all there?
ask questions not clear.

invariably bad T-con board

1.- Are lines overimposed to the normal picture?
2.- Horizontal lines? Maybe slanted or diagonal.

It looks like you have screen voltage problem.
Or 185 volts is too low for driving the 3 (red - green - blue) transistors.

Adjustment should be by the flyback body itself.

The fault looks like white lines horizontally along the screen. These are the retrace lines that become visible due to absence of proper screen/grid voltage. You will need to open the monitor only if you are familiar with power electronics, a bit of experince is important as the stages are delicate and contains high voltage. If not take help, check for faulty capacitor or low value of resistors in the screen/grid sections of the crt. Couple across parallel to the suspected capacitor to confirm and change. Use a meter to see the voltage across faulty resistors. In some cases reducing the screen potentiometer ( onthe Line output transformer)can solve the faulty. Hope you try. Good day

VERTICAL AIM ADJUSTMENT
1. Park the vehicle on a level surface approximately 7.6 meters (25 feet)
from a vertical wall or screen directly in front of it.

2. Measure the height from the
center of your headlamp to the
ground and mark a 2.4 meter (8
foot) horizontal reference line on
the vertical wall or screen at this
height (a piece of masking tape
works well). The center of the lamp
is marked by a 3.0 mm circle on the
headlamp lens.

3. Turn on the low beam headlamps to illuminate the wall or screen and
open the hood.

4. On the wall or screen you will
observe a light pattern with a
distinct horizontal edge of high
intensity light with a slight angle
towards the right. If this edge is not
at the horizontal reference line, the
beam will need to be adjusted.

5. Locate the vertical adjuster on
each headlamp, then use a 4 mm
socket/wrench to turn the adjuster
either counterclockwise (to adjust
down) or clockwise (to adjust up)
aligning the upper edge of the light
pattern up to the horizontal line
.
6. HORIZONTAL AIM IS NOT
REQUIRED FOR THIS VEHICLE
AND IS NON-ADJUSTABLE.

It is my guess that you have some intermitent solder connections in the Vertical output circuit.
Hope this helps,
Skyassoc

If you have a straight horizontal line in the middle of the screen the vertical deflection has gone out. Itll need to be repaired, the vertical deflection IC is bad. Hope this helps.

I would check the main power supply for a bad filter cap. That could cause the wavy lines. The different colors are probably a problem with the convergence circuit. Try resoldering the convergence ICs first. If that does not resolve it replace the ICs. Also check for low valued resistors in that same circuit or pico fuses.

Dan

Hey Ma-ya,
Most of the time horizontal lines are a result of taking photographs in very bright situations. If you are seeing horizontal lines on the LCD screen and in your images in low light situations this is most likely digital noise. Two ways that could fix this problem are turning the noise reduction on, and/or making sure your flash is turned on and your subject is within the range of your flash. Another cause of digital noise is having your iso set too high (I never shoot over 400 iso). I hope this helps!

Sincerely,
Allan
Go Ahead. Use Us.

only horizontal line it is a vertical section failure. caution keep brightnenn as low as possible till it is rectified & you put on tv before it this just to avoid screen burn. solution 1 check for loose contact or crack print or loose deflection coil connector. 2 check supply to vertical section. 3 check vertical ic. 4 vertical (50)Hz signalto vertical section. good luck