Model No: CT-25NI9A
N
Version 1.0
6
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety –related characteristics. These
characteristics are often passed unnoticed by a visual inspection and the X-Ray Radiation protection
afforded by them cannot necessarily be obtained by using replacement components rated for high wattage,
etc. Replaced parts which have these special safety characteristics are identified in this manual and its
supplements, electrical components having such features are shaded on the schematic diagram and the
part list.
Before replacing any of these components, read the part list in this manual carefully. The use of substitute
replacement parts, which do not have the same safety characteristics, as specified in the part list may
create shock, fire, and X-Ray Radiation or other hazards.
ALIGNMENT INSTRUCTION ( CHASSIS : 5N11)
(I) CHASSIS ADJUSTMENT
1. EEPROM partial initializing
1.1. Go to the function set menu (there are two methods: a / b)
Press 'VOL+' key and 'VOL-' key on the control board at the same time and switch on power
switch, then go to the function set menu.
After TV is on, press "factory" key (See Note 1) twin then go to the function set menu.
1.2. Press 'PM' key and 'SM' key on the control board at the same time until the “INITIAL PART
OK” appears, this means the memory having been partially initialized. Operate repeatedly if
the picture has no change.
** All of the TV set EEPROM must be partially initialized before ex-factory or after change of the
Chroma IC NN5198 / NN5199 or fully EEPROM initialized after change of the EEPROM 24C04
(OR 24C08,24C16, See Note 4).
2. Do a search and store.
(II) COMPLETE MACHINE GENERAL ADJUSTMENT
2.1. Screen Voltage Adjustment.
1-1.1
Press 'screen' key (See Note 1);
1-1.2
Adjust the screen knob of FBT to get a horizontal faintness beam line;
1-1.3
Press 'screen' key again or 'stand by' key to go to the normal work status.
2.2. Focus Voltage Adjustment.
2-1.1
Receive monoscope pattern. Set picture mode to standard status;
2-1.2
Adjust the focus knob of FBT to get the clearest sharp picture.
2.3. Horizontal centering adjustment
2.3.1. Receive monoscope pattern;
2.3.2. Press 'factory' key (See Note 1) one time and go to system parameter
