Samsung TSL2795HFX/XAA, Service Manual

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Alignment and Adjustments
Samsung Electronics 4-1
4. Alignment and Adjustments
4-1 Adjustments
Usually, a color TV needs only slight touch-up adjustment upon installation. Check the basic
characteristics such as vertical size, horizontal size, and focus. Observe the picture and check for
good black and white details. There must be no objectionable color shading: If color shading is
present, demagnetize the receiver. If color shading persists, re-do purity and convergence adjustments.
Note :
1. This ‘4. Alignment and Adjustments’ applies to KS4A chassis applications.
2. AC Power Supply: 220 V only
3. This service manual has been written on the basis of domestic remote-control model adopting KS4A
chassis. Depending on sales location and product specifications, some of specifications herein may
be changed.
KS4A contains a dynamic focus circuit. When CRT PCB, FBT or CRT is replaced, be sure to adjust
in the following sequence:
4-1-1 General Alignment Instructions
4-1-2 Focus Adjustment
Dynamic Focus Adjustment
1. Input a crosshatch pattern.
2. Select “Standard” from the menu,
3. Turn the Static Focus VR clockwise to set it to its maximum.
4. Turn the Dynamic Focus VR counterclockwise to set it to its
maximum.
5. Turn the Static Focus VR counterclockwise slowly for the clearest
center vertical line.
STATIC FOCUS VR
DYNAMIC FOCUS VR
H
V
NO USE
<FBT FOCUS PACK>
After Adjustment
6. Turn the Dynamic Focus VR clockwise slowly for the clearest third line.
1
2
3
7. Check for the FOCUS of entire screen. If necessary, re-do adjustments 3~6.