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6-5 ABNORMAL HORIZONTAL DEFLECTION
1. ABNORMAL HORIZONTAL WIDTH OF VIDEO
NG
OK
CHECK THE RELATIVE CIRCUIT
CHECK THE RELATIVE
CIRCUIT OF SMPS.
READJUST H-WIDTH FUNCTION
OF Q404, Q405, & Q406
CHECK THE HV OF
CHECK FBT B+ VOLTAGE
Q911, Q912, Q914, Q915 &
IC401 PIN 4, 5, 6, VR 902
ABOUT 60.5V AT FH=31KHz
CRT ABOUT 26KV
2. ABNORMAL HORIZONTAL RASTER CENTER
P403 AND JUMPER
CHECK T903, D926, D927, R964, R968
3. ABNORMAL HORIZONTAL VIDEO CENTER
CHECK IC101 PIN 9, 10, IC401 PIN 18, 19
4. ABNORMAL HORIZONTAL LINEARITY
CHECK L401, Q407, R447, C448
AND IC101 PIN 20, 21, 22, 23
CS SWITCHER IC403, Q410, Q411, Q420
Содержание C787
Страница 1: ... SERVICE MANUAL COLOR MONITOR C787 41A50 122 ...
Страница 23: ... 22 7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY ...
Страница 40: ... 39 ...
Страница 43: ... 42 ...
Страница 44: ... 43 9 BLOCK DIAGRAM ...
Страница 45: ... 44 ...
Страница 46: ... 45 10 IC BLOCK DIAGRAM ...
Страница 47: ... 46 IC401 TDA4856 41 ...
Страница 48: ... 47 ...
Страница 50: ... 49 ...
Страница 51: ... 50 ...
Страница 52: ... 51 11 2 CRT BOARD LAYOUT ...
Страница 53: ... 52 12 SCHEMATIC DIAGRAM ...