Read Sony CPD-420GS Service Manual online
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CPD-420GS
POWER SAVING FUNCTION
This monitor has three Power Saving modes.
By sensing the absence of a video signal from the
computer, it reduces power consumption as follows:
By sensing the absence of a video signal from the
computer, it reduces power consumption as follows:
NOTE:
If no video signal is input to the monitor, the
"NO INPUT SIGNAL" message appears. After
about 30 seconds, the Power Saving function
automatically puts the monitor into active-off
mode and the indicator lights up orange. Once
the monitor detects horizontal and vertical sync
signals, the monitor automatically resumes
normal operation mode.
"NO INPUT SIGNAL" message appears. After
about 30 seconds, the Power Saving function
automatically puts the monitor into active-off
mode and the indicator lights up orange. Once
the monitor detects horizontal and vertical sync
signals, the monitor automatically resumes
normal operation mode.
SELF DIAGNOSIS FUNCTION
When a failure occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate
the possible cause of the problem. If there is more than one error, the lamp will
identify the first of the problem areas.
the possible cause of the problem. If there is more than one error, the lamp will
identify the first of the problem areas.
Status
Area of Failure
LED Indication
1
Failure 1
HV or B+
Orange (0.5 second)/Off (0.5 second)
2
Failure 2
H Stop, V Stop, Thermal
Orange (1.5 second)/Off (0.5 second)
3
Failure 3
ABL
Orange (0.5 second)/Off (1.5 second)
4
Aging/Self Test
Orange (0.5 second)/Off (0.5 second)/
Green (0.5 second)/Off(0.5 second)
TIMING SPECIFICATION
MODE
1
2
3
Resolution (H x V)
720 X 400
1280 X 960
1600 X 1200
Dot Clock (MHz)
2 8 . 3 2 1
1 4 8 . 5 0 0
2 0 2 . 5 0 0
HORIZONTAL
Hor. Freq. (kHz)
3 1 . 4 6 8
8 5 . 9 3 8
9 3 . 7 5 0
H-Total
3 1 . 7 7 9
1 1 . 6 3 6
1 0 . 6 6 7
H-Blanking
6 . 3 5 6
3 . 0 1 7
2 . 7 6 5
H-Front Porch
0 . 6 3 6
0 . 4 3 1
0 . 3 1 6
H-Sync.
3 . 1 7 8
1 . 0 7 7
0 . 9 4 8
H-Back Porch
2 . 5 4 2
1 . 5 0 8
1 . 5 0 1
H-Active
2 5 . 4 2 3
8 . 6 2
7 . 9 0 1
(
µ
sec)
VERTICAL
Ver. Freq. (Hz)
7 0 . 0 8 4
8 5 . 0 0 2
7 5 . 0 0 0
V-Total
4 4 9
1 0 1 1
1 2 5 0
V-Blanking
4 9
5 1
5 0
V-Front Porch
1 3
1
1
V-Sync.
2
3
3
V-Back Porch
3 4
4 7
4 6
V-Active
4 0 0
9 6 0
1 2 0 0
( l i n e s )
SYNC.
Int (G)
No
No
No
Ext (H/V)/Polarity
Yes -/+
Yes +/+
Yes +/+
Ext (CS)/Polarity
No
No
No
Int/Non Int
Non Int
Non Int
Non Int
P o w e r
Required Recovery
State
Consumption
T i m e
Power Indicator
1 Normal Operation
< 130W
Green on
2 Standby (1st mode)
< 15W
approx. 5 sec.
Green and orange alternate
3 Suspend (2nd mode)
< 15W
approx. 5 sec.
Green and orange alternate
4 Active-off (3rd mode)
< 8W
approx. 5 sec.
Orange
5 Power-off
0 W
Off
6 Failure modes
See below
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