HP L1740 Service Manual

17" LCD Color Monitor HP L1740
16
CUT_A 3
NC
NC
C402
NC
Tit le
Size Document Number Rev
Date: Sheet
of
G1864-1A-HP-X-1-070116
1
Power and Control board
B
45Tuesday , J anuary 16, 2007
+5V
CN401
CONN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R409
NC
FB402 NC
CUT_A
Q401
2N3906S-R TK/PS
R403
47Ω 1/10W
BRIGHTNESS
R404
0Ω 1/10W
BL_CONTROL
R405
47Ω 1/10W
R412
0 OHM +-5% 1/4W
Q404
2N3906S-RTK/PS
R407
0Ω 1/10W
R408
10KΩ 1/10W
PANEL_IDX
C407
0.1uF 50V
C406
0.1uF 50V
Aug.-25-06 modify cancel (12->5v) add (5v->3.3v)
Q403
PMBS3904
R402
0Ω 1/10W
PANEL_IDX 3
BL_CONTROL 3
BRIGHTNESS 3
Q402
AO3401
+ C436
10uF/ 50V
C435
0.1uF 50V
+3. 3V-U
+
C439
470uF/ 25V
C438
0.1uF 50V
+3.3V
U204
VI
3
VO
2
GND
1
U203
VI
3
VO
2
GND
1
+ C434
100uF/ 50V
+ C437
100uF/ 50V
R432
10KΩ 1/10W
CONNECTOR FOR
POWER/INVERTER
BOARD 2.0 mm
R420
10KΩ 1/10W
LED_RED
LED_GR EEN
LED_GR EEN
K_AUTO
R424
0Ω 1/10W
+5V
LED_RED
R427
NC
R425
0Ω 1/10W
R426
NC
+5V+3.3V
C423
0.1uF 50V
C424
0.1uF 50V
R415
10KΩ 1/10W
C425
0.1uF 50V
C426
0.1uF 50V
C427
0.1uF 50V
+3.3V
LED_G
R419 1.8KΩ 1/10W
LED_R
R421 1.8KΩ 1/10W
Key pad and LED control
+3. 3V
R416
10KΩ 1/10W
R422 1.8KΩ 1/10W
K_AUTO 3
LED_G 3
LED_R 3
DC_SW 3
KEY 1 3
R428 10KΩ 1/10W
CN402
CONN
1
2
3
4
5
6
7
R430 10KΩ 1/10W
R429 220Ω 1/10W
R431 220Ω 1/10W
DC_SW
R417
10KΩ 1/10W
KEY1
U202
AZ1117D -1.8-E1
ADJ / GND
1
OUTPUT
2
INPUT
3
C431
0.1uF 50V
C428
10uF/ 16V
+
C429
10uF/ 50V
C430
0.1uF 50V
+1. 8VCC+3. 3V
FOR 1.8V POWER USE
C432
NC
+
C413
NC
C433
NC
FB406
120Ω
PANEL_VCC
C420
0.1uF 50V
+5V
R418
100KΩ 1/10W
Panel VDD control
+ C421
10uF/ 50V
C422
0.1uF 50V
R414
100KΩ 1/10W
FB405
120Ω
R423
NC
+ C418
NC
PANEL_PW R3
C419
0.033uF

HP L1740 Specifications

General

3D	No
Response time	8 ms
Display diagonal	17 \
Display resolution	1280 x 1024 pixels
Viewing angle, vertical	135 °
Contrast ratio (dynamic)	-
Contrast ratio (typical)	500:1
Display number of colors	16.78 million colors
Viewing angle, horizontal	150 °
Digital vertical frequency	56 - 76 Hz
Digital horizontal frequency	30 - 83 kHz
Display brightness (typical)	300 cd/m²
Supported graphics resolutions	720 x 400, 832 x 624, 1152 x 870, 1024 x 768 (XGA), 1360 x 768 (WXGA), 640 x 480 (VGA), 800 x 600 (SVGA)
USB hub version	2.0
DVI-I ports quantity	0
Cable lock slot type	Kensington
Panel mounting interface	100 x 100 mm
Power consumption (max)	60 W
Power consumption (average)	33 W
Power consumption (standby)	2 W
Power consumption (typical)	40 W
Product color	Black, White
Country of origin	China
Package weight	8800 g
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (with stand)	248 mm
Height (with stand)	490 mm
Weight (with stand)	7000 g
Depth (without stand)	62 mm
Width (without stand)	371 mm
Height (without stand)	315 mm
Weight (without stand)	3760 g