Picture Size; Abnormal Horizontal Width - NEC MultiSync 2A Service Manual

8.

PICTURE SIZE

ABNORMAL HORIZONTAL WIDTH

800X600 MODE ONLY OR
VGA MODE ONLY FAULT
CHECK RL501 OPERATION
NG
D510, D512, 0508, 0509
OK
0511
READJUST L503
AND L504
FAILURE
- 26-
800X600 MODE AND
VGA MODE FAULT
READJUST L504
AT 800X600 MODE
NG
OK
READJUST L503
AT VGA MODE
NG
L503 FAILURE
OK
CHECK THE H. WIDTH
AT 800X600 MODE
NG
OK