Power Saving Function; Timing Specification - HP A4576 Service Manual

POWER SAVING FUNCTION

DIAGNOSIS
Failure
+B failure
Horizontal / Vertical Deflection failure,
Thermal protector
ABL protector
HV failure
Aging / Self Test
Aging Mode (Video Aging) : During Power Save, press "MENU" key for longer than 2 second.
Self Test (OSD Color Bar)
Reliability Check Mode

TIMING SPECIFICATION

MODE AT PRODUCTION MODE 1
RESOLUTION 640 X 400
CLOCK 25.175 MHz
—HORIZONTAL—
H-FREQ 31.469 kHz
usec
H. TOTAL 31.778
H. BLK 6.356
H. FP 0.636
H. SYNC 3.813
H. BP 1.907
H. ACTIV 25.422
— VERTICAL —
V. FREQ(HZ) 69.931 Hz
lines
V. TOTAL 450
V. BLK 50
V. FP 12
V. SYNC 2
V. BP 36
V. ACTIV 400
— SYNC —
INT(G) NO
EXT(H/V)/POLARITY YES N/P
EXT(CS)/POLARITY NO
INT/NON INT NON INT
→
Yellow Off
(0.5 sec) (0.5 sec)
→
Yellow Off
(1.5 sec) (0.5 sec)
→
Yellow Off
(0.5 sec) (1.5 sec)
→
Yellow Off
(0.25 sec) (0.5 sec)
→
Yellow Off
(0.5 sec) (0.5 sec)
: During Power Save, press "CONTRAST" + (/) key for longer than 2 second.
: During Power Save, press "CONTRAST" – (?) key for longer than 2 second.
MODE 2 MODE 3 MODE 4
640 X 480 800 X 600 1024 X 768
36.000 MHz 56.250 MHz 78.750 MHz
43.269 kHz 53.674 kHz 60.023 kHz
usec usec
23.111 18.631 16.660
5.333 4.409
1.556 0.569
1.556 1.138
2.222 2.702
17.778 14.222 13.003
85.008 Hz 85.061 Hz 75.029 Hz
lines lines
509 631
29 31
1 1
3 3
25 27
480 600
NO NO
YES N/N YES P/P YES P/P
NO NO
NON INT NON INT NON INT
Power LED
→ →
Yellow
(0.25 sec) (1.25 sec)
→ →
Green
(0.5 sec) (0.5 sec)
MODE 5 MODE 6
1024 X 768 1280 X 1024
94.500 MHz 135.000 MHz
68.677 kHz 78.125 kHz
usec usec usec
14.561 12.800
3.657 3.725 3.319
0.203 0.508 0.474
1.219 1.016 1.422
2.235 2.201 1.422
10.836 9.481
84.997 Hz 72.005 Hz
lines lines lines
800 808 1085
32 40 61
1 1 3
3 3 3
28 36 55
768 768 1024
NO NO YES
YES P/P NO
NO NO NO
NON INT NON INT
– 3 –
Off
Off
MODE 7 MODE 8 MODE 9
1280 X 1024 1280 X 1024 1600 X 1200
135.000 MHz 157.500 MHz 202.500 MHz
79.976 kHz 91.146 kHz 93.750 kHz
usec usec usec
12.504 10.971 10.667
3.022 2.844 2.765
0.119 0.406 0.316
1.067 1.016 0.948
1.837 1.422 1.501
9.481 8.127 7.901
75.025 Hz 85.024 Hz 75.000 Hz
lines lines lines
1066 1072 1250
42 48 50
1 1 1
3 3 3
38 44 46
1024 1024 1200
NO NO NO
YES P/P YESP/P YES P/P
NO NO NO
NON INT NON INT NON INT
A4576
MODE 10
1600 X 1200
229.500 MHz
106.250 kHz
usec
9.412
2.44
0.279
0.837
1.325
6.972
85.000 Hz
lines
1250
50
1
3
46
1200
NO
YES P/P
NO
NON INT
97.9.19 VER.