GDM-400PS, GDM-400PST, GDM-400PST9 - Sony Monitor Service Manual (repair manual). Page 3

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GDM-400PS/400PST/400PST9
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DIAGNOSIS
Failure
+B failure
Horizontal / Vertical Deflection
failure, Thermal protector
ABL protector
HV failure
Aging / Self Test
Power LED
Amber
Off
(0.5 sec)
(0.5 sec)
Amber
Off
(1.5 sec)
(0.5 sec)
Amber
Off
(0.5 sec)
(1.5 sec)
Amber
Off
Amber
Off
(0.25 sec)
(0.5 sec)
(0.25 sec)
(1.25 sec)
Amber
Off
Green
Off
(0.5 sec)
(0.5 sec)
(0.5 sec)
(0.5 sec)
Aging Mode (Video Aging) : During Power Save, press “MENU” key for longer than 2 second.
Self Test (OSD Color Bar)
: During Power Save, press “CONTRAST” + (
/) key for longer than 2 second.
Reliability Check Mode
: During Power Save, press “CONTRAST”– (
?) key for longer than 2 second.
Recovery time
Approx. 3 sec.
Approx. 3 sec.
Approx. 10 sec.
u
 indicator
Green
Green and orange
alternate
Green and orange
alternate
Orange
Off
Screen
active
blank
blank
blank
Horizontal
sync signal
present
absent
present
absent
Vertical
sync signal
present
present
absent
absent
Power consumption
 160 W (GDM-500PS)
 130 W (GDM-400PS)
 100 W (GDM-500PS)
 85 W (GDM-400PS)
 15 W
 5 W
0 W
This monitor meets the power-saving guidelines set by
VESA and Energy Star, as well as the more stringent
NUTEK .
If the monitor is connected to a computer or video
graphics board that is VESA DPMS (Display Power
Management Signaling) compliant, the monitor will
automatically reduce power consumption in three stages
as shown below.
You can set the delay time before the monitor enters the
power saving mode using the OSD. Set the time according
to “Setting the power saving delay time” on page 16.
Note
If no video signal is input to the monitor, the “NO INPUT
SIGNAL” message (page 20) appears.  After the delay time has
passed, the power saving function automatically puts the monitor
into the active-off mode and the u indicator lights up orange.
Once the horizontal and vertical sync signals are detected, the
monitor automatically resumes its normal operation mode.
POWER  SAVING  FUNCTION
Power consumption
mode
Normal operation
Standby (1st mode)
Suspend (2nd mode)
Active-off (3rd mode)
Power-off
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