Power Management; Self Diagnosis Function; Timing Specification - Compaq P700 Service Manual

P700
The power saving mode complies with the VESA Display Power Management Signaling standard.
Each state of power management shall be activated by the host computer terminating the appropriate
sync signals. Blanking the video must precede termination of the sync signals. The elapsed time
counter shall also be controlled by the host computer. Reactivation of the monitor shall be accomplished
from the host computer by re-establishing the normal sync signal.
Power consumption
mode
1 Normal operation
2 Standby (1st mode)
3 Suspend (2nd mode)
4 Active-off (3rd mode)
5 Power-off
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.
Status
1 Failure 1
2 Failure 2
3 Failure 3
4 Aging/Self Test

POWER MANAGEMENT

Screen Horizontal Vertical
(video) sync signal sync signal consumption
active yes yes
blank no yes
blank yes no
blank no no
-- -- --

SELF DIAGNOSIS FUNCTION

Area of Failure
HV or +B
H Stop or V Stop
ABL

TIMING SPECIFICATION

— 2 —
Power Recovery time
< 130 W --
< 15 W Approx. 3 sec.
< 15 W Approx. 3 sec.
< 3 W Approx. 10 sec.
0 W --
LED Indication
Amber (0.5 second)/Off (0.5 second)
Amber (1.5 second)/Off (0.5 second)
Amber (0.5 second)/Off (1.5 second)
Amber (0.5 second)/Off (0.5 second)/
Green (0.5 second)/Off (0.5 second)
indicator
Green
Green and Orange
Alternate
Green and Orange
Alternate
Orange
Off