18
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
137V
CHECK L401, Q407, Q407, R447, C448 AND IC101
PIN 20,21,22,23 CS SWITHCHER IC403, Q401,
Q412,Q417
NG
OK
Summary of Contents for EX951F
Page 23: ...22 7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY ...
Page 46: ...45 9 IC BLOCK DIAGRAM IC101 NT68F65U IC102 24C08 IC901 STR G9656D ...
Page 47: ...46 IC401 UPC1888ECT ...
Page 48: ...47 IC804 NT6828 00046 IC801 LM 1269NA ...
Page 49: ...48 IC803 LM2480NA IC904 PC431CLP IC903 L7812CV ...