18
4. Abnormal OSD Font
Is menu
key selected?
Is OSD Font
exist?
* If menu key selected.
Is Heater
Voltage about 6V?
Abnormal OSD Font
Is the
output of IC204
(pin 13, 14, 15)
normal?
Trouble in
Heater voltage
line.
Refer to trouble in P.S.U
Troubie in
IC803 or its
ambient circuit
Trouble in IC204
and its ambient
circuit
One color is
missing
Refer to Missing Color
No
No
Yes
Yes
Yes
Yes
No
Summary of Contents for 531X
Page 32: ...PCB LAYOUT 30 Main PCB Component Side...
Page 33: ...31 Main PCB Solder Side...
Page 34: ...32 CRT PCB Component Side CRT PCB Solder Side...
Page 35: ...33 SCHEMATIC DIAGRAM Power Connection Section...
Page 36: ...34 Control Vert out Section...
Page 37: ...35 Horizontal Section...
Page 38: ...36 Video Section...
Page 39: ...EXPLODED VIEW DIAGRAM 37...
