- 23 -
5. TROUBLE IN DPM
CHECK
IC401 (MICOM)
PIN 42, 1 (H/V INPUT)
SIGNAL?
CHECK
IC401 PIN 6, 7
WAVEFORM?
CHECK
IC401 PIN 5
(5V, HIGH)?
CHECK
IC401 PIN 19, 21 ?
CHECK PC,
(PC IS NOT GOING INTO
DPM MODE)
TROUBLE IN
X401, IC401
TROUBLE IN
IC401
TROUBLE IN
IC401
TROUBLE IN
T901 or PC
NO H / V SYNC SIGNAL
INPUT H/V SYNC
NO
NO
NO
DPMS TABLE
Mode
Item
NORMAL
STAND-BY
SUSPEND
OFF
H / V SYNC
ON / ON
OFF / ON
ON / OFF
OFF / OFF
LED
GREEN
ORANGE
ORANGE
ORANGE
VIDEO
NORMAL
OFF(0V)
OFF(0V)
OFF(0V)
YES
YES
CHECK
B+ LINE
(12V, 15V, 80V,
5V) ?
TROUBLE IN
Q930, Q907
NO
YES
STAND-BY/SUSPEND/
OFF MODE FAILURE
