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ERISSON 21F1 - Electrical Adjustment

ERISSON 21F1
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iv. AFT Data Setting
Remark: This table of AFT DATA setting is only for:
SAMSUNG tuner: TECC0949VG28B and WITTIS tuner: UVS1051-CW /UVS1051-NEW.
A. Chassis adjustment
i. +B voltage alignment
a. Preparation Procedure.
1. Receive standard colour bar signal.
2. Press key "I.P.C." to Select “Natural” Status.
3. Connect digital voltmeter between of C416 and GND.
4. +B voltage
NOTE: Please refer to the CRT conversion table for other CRT.
b. Adjustment Step
Adjust VR901 to make the read-out on the Voltmeter to be +B±0.3V.
ii. Method to enter into SERVICE MENU and ADJUST MENU
a. Turn on the Main Power Switch, then Press Volume Buttons Both "+" and "-" Simultaneously for over 5S, the
"KWUAA SERVICE" will be displayed on the screen.
b. The “KWUAA SERVICE” menu is indicated with each item on the screen. The item can be selected by pressing
channel “
” and “ ” keys.
c. Selecting “Read 5198”, press “MENU/OK” key (or press “OK” key on the remote handset) to read IC
NN5199K/NN5198K DATA in order to operate the TV set. On-screen display will be shown as follows:
Press “MENU/OK” key (or press “OK” key on the remote handset) to confirm Read 5198.
Press “M” key on the remote handset to exit.
Note: 1.Many standard data are already preset in the EEPROM inside IC NN5198K of 5099K by the IC
manufacturer. During manufacturing the TV set, it is necessary to read those data that stored in
EEPROM of IC NN5099K and memorize it in external EEPROM. By doing so, some alignment can
be omitted, or the data memorized in the external EEPROM can be changed according to the situation.
Please note that according to the specification the operation of “reading” data from the EEPROM
inside NN5198K only can be done 1000 times, when changing IC201 (NN5198K or NN5099K)/ IC602
(EEPROM) or before adjusting, it is necessary to read NN5198K or 5099K data one time.
2.CNT: ‘x’ means number of times that the data stored in the EEPROM of NN5198K or NN5099K
has been read. For example, CNT: ‘9’ , it means the data stored in the EEPROM of NN5198K or
NN5099K has been read 9 times.
KWUAA SERVICE
Adjustment
Option xxxxxxxx
Confirm Read ??? X
Other Adj.
VIII. Electrical adjustment
KWUAA SERVICE
Adjustment
Option xxxxxxxx
Read 5198 CNT: X
Other Adj.
Model CRT CRT Type No. +B
21”BN37/BN34 102-321001-03 54SX503Y22-DC01 N2 +106V
Description Value
VHFL VHFH UHF
Low 120 56 35
Middle 97 40 31
High 131 76 90