LG StudioWorks 575E, Service Manual

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CHECK
IC401 (MICOM)
PIN 1, 42 (H/V INPUT)
SIGNAL?
CHECK
IC401 PIN 6
WAVEFORM?
CHECK
IC401 (MICOM)
PIN 3, 4 ?
CHECK
B+ LINE
(6.3V,15V, 105V) ?
CHECK PC,
(PC IS NOT GOING INTO
DPM OFF MODE)
TROUBLE IN
X401
TROUBLE IN
IC401 (MICOM)
TROUBLE IN
Q941, Q942, Q951, Q952,
Q971, Q972
TROUBLE IN PC
OFF MODE FAILURE
INPUT H/V SYNC SIGNAL
H/V SYNC
(NO OFF MODE.)
NO
NO
NO
NO (DPMF: 0V)
DPM TABLE
Mode
Item
NORMAL
STAND-BY
SUSPEND
OFF
DPMF
H
H
H
L
LED
GREEN
ORANGE
ORANGE
ORANGE
DPMS
H
L
L
L
YES
YES
SEE DPM TABLE
YES
YES
5V
6MHz
8. TROUBLE IN DPM