1. Alignment and Adjustments Samsung HCH 551WX TV Service mode
1-1 Specing Notes
1-1-1 When IC902 EEPROM is Replaced
1. When IC902 is replaced, all adjustment data revert to the initial values.
2. After IC902 is replaced, warm up the TV at least for 5 seconds.
1-1-2 After IC902 EEPROM is Replaced
1. Make the following adjustments after entering the Service Mode:
Geometric System
White Balance
Sub-Contrast, Sub-Brightness
3-1-3 To Reset the User’s Pin to “ 0 - 0 - 0 - 0”
Press the remote - control buttons as follows :
Display "8" 2 4
1-2 Factory Service Mode Samsung HCH 551WX TV
1-2-1 Aging Mode
The Aging Mode is activated by pressing the remote-control in the following sequence:
Power OFF ® Mute ® 1 ® 8 ® 5 ® Power ON
1-2-2 Procedure for the “Adjustment” Mode
1. The Service Mode is activated by pressing the remote-control keys in the following sequence: (1) Power OFF ® Mute ®1®8 ®2®Power ON, or (2) Power ON ® Display ®Factory (Use the factory standard remote control).
2. The SERVICE (FACTORY) message will be displayed. The Service Mode has five components: Adjustment, MTS Adjust, Test Pattern, Option and Reset.
3. Access the Adjustment Mode by pressing the Volume keys (Up/Down). The adjustment parameters are listed in [2], and selected by pressing the Channel
and Volume keys (Up/Down).
4. The Volume keys increase or decrease the adjustment values.
5. Cancel the Adjustment Mode by pressing the ÒMenuÓ key.
1-2-4 Procedure for the “MTS Adjust” Mode Samsung HCH 551WX TV
1. Access the Adjustment Mode by pressing the Volume keys (Up/Down).
The adjustment parameters are listed in [4], and selected by pressing the Channel and Volume keys (Up/Down).
2. The Volume keys increase or decrease the adjustment values.
3. When ÒADJ OFFÓ is selected, the MTS (Multi-Track Sound) IC automatically undates the adjustment value for A1, A2. At this time,
ADJ ON is seen on the screen for one second, and then changes to ADJ OFF.
1-4 Samsung HCH 551WX TV Service mode Other Adjustments
1-4-1 Picture Size Adjustment
PRECAUTION
1. Input a lion head/crosshatch pattern.
2. Select the STANDARD video mode.
3. Warm up the TV for at least 15 minutes.
ADJUSTMENT
1. Turn on the TV.
2. Make sure that the focus adjustments are completed.
3. Cover the RED and BLUE lenses.
4. Enter the Convergence Adjustment Mode by pressing the remote- control keys in the following sequence: Factory - Mute - Display
5. Select the Picture Size key for no convergence correction data, and the Convergence Exit key (Sound Select key) for the main signal.
6. Enter the Factory Mode by pressing the
remote-control keys in the following sequence: Display - Factory
7. Adjust the GREEN lens (Use a center magnet)
8. Select the Picture Height (52) by pressing the Channel and Volume keys (Up/Down), and
enter the Picture Width Mode by pressing the Tridimensional Sound key, and then adjust so
that the top and bottom margins become 10 (Use the Volume +/- keys.)
9. Select the V Linear (53) by pressing the Channel and Volume keys (Up/Down), and press the Tridimensional Sound key, and then adjust so that the top and bottom margins are
equal. (Use the Volume +/- keys.) If necessary, readjust the top and bottom margins using a center magnet.
10. Select the H Width (57) by pressing the Channel and Volume keys (Up/Down), and press the Tridimensional Sound key, and then adjust so that the left and right margins
become 12 (Use the Volume +/- keys.)
11. Select the EW Parabola (58) by pressing the Channel and Volume keys (Up/Down), and press the Tridimensional Sound key, and input a crosshatch pattern by pressing the Channel
Up/Down keys, and then adjust so that the left and right lines are linear (Use the Volume +/- keys.)
12. If necessary, make the adjustments of the other functions.
13. Enter the main lion pattern by pressing the Convergence I-Data key, and adjust so that
RED,BLUE is positioned in the center of the screen.
14. Check the focus of GREEN,RED,BLUE.
15. After the adjustments are completed, do the convergence adjustments.
Photo credit : bayroots.com
1-4-2 Screen Adjustment Samsung HCH 551WX TV Service mode
1. Warm up the TV for at least 30 minutes.
2. Turn to the Video Mode (No Signal) using a remote-control.
3. Connect an oscilloscope to RK,GK,BK.
4. Adjust the VR (VR501, VR531, VR561) screen so that RK, GK, BK pulse is 20Vp-p each.
(Turn the R,G,B VR screen fully counterclockwise in the area of each flyback line.)
Universal Remote - Service Mode - TV Factory menu codes
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Samsung HCH 551WX TV Service Menu mode, Samsung HCH 551WX TV factory mode Written on March 20, 2015