Power Management; Self Diagnosis Function; Timing Speciþ Cation; Setup - Sony TRINITRON HMD-A240 Service Manual

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 Active-off (3rd mode)
3 Power-off
* In this mode, the signal will appear in one of three ways: The Horizontal Sync Signal alone off, the Vertical Sync Signal
alone off, or both signals off.
When a failure occurs, the STANDBY/TIMER lamp will ß ash 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 Þ rst of the problem areas.
Status
1
Failure 1
2
Failure 2
3
Failure 3
4
Aging/Self Test
MODE
RESOLUTION 640 X 480 640 X 480 720 X 400 800 X 600 800 X 600 832 X 624 1024 X 768 1024 X 768 1280 X 1024
CLOCK
HORIZONTAL
H. FREQ
H. TOTAL
H. BLK
H. FP
H. SYNC
H. BP
H. ACTIV
VERTICAL
V. FREQ
V. TOTAL
V. BLK
V. FP
V. SYNC
V. BP
V. ACTIV
SYNC
INT (G)
EXT (H/V) / POLARITY
EXT (CS) / POLARITY
SERRATION
SYNC LEVEL
VIDEO
VIDEO LEVEL
SET UP

POWER MANAGEMENT

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

SELF DIAGNOSIS FUNCTION

Area of Failure
HV or +B
H Stop, V Stop or S Correction FET Failure
ABL
TIMING SPECIFICATION
1 2 3
25.175 36 28.322
31.469 43.269 31.469
31.778 23.111 31.777
6.356 5.333 6.355
0.636 1.556 0.636
3.813 1.556 3.813
1.907 2.222 1.907
25.422 17.778 25.422
59.940 85.008 70.087
16.683 11.764 14.268
1.430 0.670 1.557
0.318 0.023 0.381
0.064 0.069 0.064
1.049 0.578 1.112
15.253 11.093 12.711
NO NO NO
YES YES YES
NO NO NO
NO NO NO
TTL TTL TTL
0.7 0.7 0.7
0 0 0
Vertical Power
yes < 100 W
no* < 3 W
-- 0 W (approx)
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)
4 5 6
49.5 56.25 57.283
46.875 53.674 49.725
21.333 18.631 20.111
5.172 4.409 5.586
0.323 0.569 0.559
1.616 1.138 1.117
3.232 2.702 3.910
16.162 14.222 14.524
75.000 85.061 74.550
13.333 11.756 13.414
0.533 0.578 0.865
0.021 0.019 0.020
0.064 0.056 0.060
0.448 0.503 0.784
12.800 11.179 12.549
NO NO NO
YES YES YES
NO NO NO
NO NO NO
TTL TTL TTL
0.7 0.7 0.7
0 0 0
— 4 —
Recovery time Indicator
-- Green
Approx. 10 sec. Amber
-- Off
LED Indication
PRIME
MODE
7 8 9
78.75 94.5 108
60.023 68.677 63.981
16.660 14.561 15.630
3.657 3.725 3.778
0.203 0.508 0.444
1.219 1.016 1.037
2.235 2.201 2.296
13.003 10.836 11.852
75.029 84.997 60.020
13.328 11.765 16.661
0.533 0.582 0.656
0.017 0.015 0.016
0.050 0.044 0.047
0.466 0.524 0.594
12.795 11.183 16.005
NO NO NO
YES YES YES
NO NO NO
NO NO NO
TTL TTL TTL
0.7 0.7 0.7
0 0 0
HMD-A240