AOC L1906 Service Manual

19" LCD Color Monitor

HP L1906

Service

Service

Service

		Horizontal Frequency
		3083 kHz
	TABLE OF CONTENTS
Description	Page Description	Page

Table Of Contents.......……..............................…........1 Revision List.…........................................……......2 1. Monitor Specification..............................………........3 2. LCD Monitor Description…………………………….......4 3. Operation Instruction…………...............……...........5 3.1. General Instructions...........................…...........5 3.2. Control Button…………….…..............……...............5 3.3 Adjusting the Picture...........................…............6 4. Input/Output Specification............……………............7 4.1. Input Signal Connector............………….................7 4.2. Factory Preset Display Modes......…..................8 4.3. Power Supply Requirements...............................9 5. Panel Specification.....………………..................10 5.1. General Feature…….....………………..................10 5.2. Optical Characteristics………………………………11 5.3 Parameter guide line for CCFL Inverter……………..12 6. Block Diagram……...................…………................13

6.1. Monitor Exploded View…………………....….......13

6.2 Software Flow Chart……………………….……….14

6.3. Electrical Block Diagram……………..….......16

7. Schematic……………......................................18

7.1Main Board....……….......................................18

7.2Power Board.….……....................................22 8.PCB Layout..………….......................................24

8.1.Main Board………........................................24

8.2.Power Board….......................................26

8.3.Key Board………............….......................29 9. Maintainability……….......................................30

9.1.Equipments and Tools Requirement..............30

9.2.Trouble Shooting………..............................31 10. White-Balance, Luminance adjustment...37 11. BOM List….....................................................38 12. Different Parts List.........…….……........................50

SAFETY NOTICE

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

1

19" LCD Color Monitor				HP L1906
			Revision List
	Version	Date	Revision History	TPV Model Name
	A00	Apr.-04-2007	first release	T96HM9DKB1HPNE
				T96GM9DKB1HPNE
	A01	May.-08-2007	Add TPVDW Model in Item12	T96GM9DLB1HPNE
	A02	May.-23-2007	Add TPVDW Model in Item12	T96SM9DLB1HPNE
				T96SM9DKB1HPNE
	A03	Jul.-05-2007	Add TPVDW Model in Item12	T97SM9DDB1HPNNE
				T97HM9DKB1HPNNE
	A04	Jul.-21-2007	Add TPVDW Model in Item12
				T96SM9DBB1HANE
				T97HM9DLB1HPNNE
				T97HM9DTB1HPNNE
	A05	Aug.-10-2007	Add TPVDW Model in Item12	T97HM9DDB1HPNNE
				T96HM9DLB1HPNE
				T97LM9DDB1HPNNE
				T97HM9DTB1HANNE
	A06	Sep.-04-2007	Add TPVDW Model in Item12
				T97HM9DBB1HANNE
				T96GM9DTB1HPNE
	A07	Sep.-12-2007	Add TPVDW Model in Item12	T97SM9DBB1HFNNE
	A08	Sep.-21-2007	Add TPVDW Model in Item12	T97HM9DAB1HANNE
	A09	Oct.-10-2007	Add TPVDW Model in Item12	T97SM9DAB1HANNE

2

19" LCD Color Monitor

HP L1906

1. Monitor Specification

3

19" LCD Color Monitor

HP L1906

2. LCD Monitor Description

The LCD Monitor will contain main board, power board, key board and an audio board which house the flat panel control logic, brightness control logic and DDC.

The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.

Monitor Block Diagram

	CCFT Drive.	Flat Panel and
		CCFL backlight

Power Board				Main Board
										RS232 Connector
(Include adapter and inverter)
										For white balance
										adjustment in
										factory mode
		Audio board			Key board
AC-IN										Video signal, DDC
						HOST Computer
110V-240

4

19" LCD Color Monitor

HP L1906

3. Operation Instructions

3.1 General Instructions

Press the power button to turn the monitor on or off. The other control buttons are located at front of the panel. By changing these settings, the picture can be adjusted to your personal performance.

-The power cord should be connected and insert to adaptor.

-Connect the video cable from the monitor to the computer VGA card.

-Press the power button to turn on the monitor, the power indicator will light up to Green.

3.2Control Buttons

5

19" LCD Color Monitor

HP L1906

3.3 Adjust the Picture

Use the On-Screen Display (OSD) to adjust the screen image based on your viewing preferences. To access the OSD, do the following:

1.If the monitor is not already on, press the Power switch to turn on the monitor.

2.To access the OSD Menu, press the Menu button on the monitor’s front panel.

3.To navigate through the OSD Menu, press the + (Plus) button on the monitor’s front panel to scroll up, or the – (Minus) button to scroll in reverse.

4.To select an item from the OSD Menu, use the + or – buttons to scroll to and highlight your selection, then press the Menu button to select that function.

5.Adjust the item using the + or – buttons on the front panel to adjust the scale.

6.After adjusting the function, select Save and Return, or Cancel if you don’t want to save the setting, then select Exit from the Main Menu.

If the buttons remain untouched for 10 seconds while displaying a menu, new adjustments will be discarded and the settings will revert to previous settings and exit the menu.

6

19" LCD Color Monitor					HP L1906
4. Input/Output Specification
4.1 Input Signal Connector
	Pin		Signal	Pin	Signal
1			Red Video	9	+5 V (from PC)
2			Green Video	10	Ground
3			Blue Video	11	Ground
4			Ground	12	DDC-serial Data
5			Detect Cable	13	Horizontal Sync
6			Red GND	14	Vertical Sync
7			Green GND	15	DDC-serial Clock
8			Blue GND

VGA connector layout

PIN 1	PIN 5
PIN 11

7

19" LCD Color Monitor

HP L1906

4.2 Factory Preset Display Modes

8

19" LCD Color Monitor		HP L1906
4.3 Power Supply Requirements
	Parameter	Range
	AC Line Voltage range	100 to 240V
	AC Line Frequency range	47 to 63 Hz
	Peak surge Current	< 55 A MAX AT 220VAC and cold starting
	Leakage Current	< 3.5 mA
	Power Consumption	≤37W

9

19" LCD Color Monitor

HP L1906

5. Panel Specification

5.1 General Feature

Mechanical Information

Absolute Rating of Environment

10

19" LCD Color Monitor

HP L1906

5.2 Optical Characteristics

Timing Specifications

Optical Specification

11

19" LCD Color Monitor

HP L1906

5.3 Parameter guide line for CCFL Inverter

TFT LCD Module:

Back Light Unit:

12

19" LCD Color Monitor

HP L1906

6. Block Diagram

6.1 Monitor Exploded View

13

19" LCD Color Monitor

HP L1906

6.2 Software Flow Chart

1

Y

2 3

N

4

5	N
Y
6

N

7 8

Y

9

	10	N	11
	Y
N	12		13	N
	Y		Y
	14		15	N
				16
			Y
			17

18 N 19

Y

14

19" LCD Color Monitor

HP L1906

REMARK:

1)MCU initialize.

2)Is the EEprom blank?

3)Program the EEprom by default values.

4)Get the PWM value of brightness from EEprom.

5)Is the power key pressed?

6)Clear all global flags.

7)Are the AUTO and SELECT keys pressed?

8)Enter factory mode.

9)Save the power key status into EEprom. Turn on the LED and set it to green color. Scalar initialize.

10)In standby mode?

11)Update the lifetime of back light.

12)Check the analog port, are they’re any signals coming?

13)Does the scalar send out an interrupt request?

14)Wake up the scalar.

15)Are there any signals coming from analog port?

16)Display "No connection Check Signal Cable" message. And go into standby mode after the message disappear.

17)Program the scalar to be able to show the coming mode.

18)Process the OSD display.

19)Read the keyboard. Is the power key pressed?

15

19" LCD Color Monitor

HP L1906

6.3 Electrical Block Diagram

6.3.1 Scalar Board

Panel Interface

(CN101)

EPR_SDA

EEPROM

EPR SCL

Scalar TSUM16AL

(U402)

(Include ADC OSD MCU)

(U401)

RXD

R

Hsync,

DDC_SDA

G

DDC SCL

TXD

B

Vsync

D-Sub Connector

EEPROM

(CN405)

(U404)

DB15_SDA

DB15 SCL

16

19" LCD Color Monitor

HP L1906

6.3.2 Inverter / Power Board

AC inlet

filter

Rectifier and

Transform

Rectifier and

12V/5V

filter

filter D920;

D921

To main board

Start circuit R905; R909, R910

OVP circuit

Switching circuit

Feedback

PWM control

circuit 12V

IC&MOSFET

IC902;IC921

On/off control		Start circuit

	PWM control IC			Push-pull			LC resonant		Lamp
				circuit
Dimming control
						Feedback circuit

17

19" LCD Color Monitor

7. Schematic

7.1 Main Board

11/21 CN405 #11 change to NC

CN405

17			RED+				FB410	150 OHM
11	1	RED+
	6	RED-	GREEN+				FB411	150 OHM
12	2	GREEN+
	7	GREEN-	BLUE+				FB412	150 OHM
13	3	BLUE+							751/10W		751/10W
14	8	BLUE- PC5V						R438		R439
	10
	4	PC5V
	9
15	5
			RED-
16	DB15		GREEN-
			BLUE-
		3	D403	3	D404	3	D405
			BAV99		BAV99		BAV99
		D406						ESD_5V
		MLL5232B 5.6V

C4392

0.1uF1

C4402

0.1uF1

C4412

0.1uF1

	VGA_CON
HSI	FB409	150 OHM		R446	1K 1/10W
VSI						R447
D408	D409	R448	C442	R449		C443
MLL5232B 5.6V	MLL5232B 5.6V	2.2K 1/10W	33pF	2.2K 1/10W		220pF

D411	D412
MLL5232B 5.6V	MLL5232B 5.6V

HP L1906

R434

56 1/10W

C432

0.047uF

RIN

2

R435

56 1/10W

C433

0.047uF

GIN

2

R436

56 1/10W

C434

0.047uF

BIN

2

+5V

R440

R437

470 1/10W

C435

0.001uF

1/10W75

SOG

2

R470

R441

100 1/10W

C436

0.047uF

GNDR 2

1K 1/10W

R442

100 1/10W

C437

0.047uF

GNDG 2

ESD_5V

R443

100 1/10W

C438

0.047uF

GNDB 2

D425

+5V

MLL5232B 5.6V

+5V

2,3

R444

10K 1/10W

R445

100 1/10W

11/27 D407 change to BAV70(93G-64-42-P)

DET_VGA 2

+5VA

PC5V

HSYNC 2

1

2

1K 1/10W

VSYNC 2

D407

BAV70

D410

3

MLL5232B 5.6V

R450

R451

C444

U404

10K 1/10W

10K 1/10W

R452

8

VCC

A0

1

0.1uF

10K 1/10W

7

2

SCL_VGA

WP

A1

R453

47 1/10W

6

3

SCL

A2

SDA_VGA

R454

47 1/10W

5

4

SDA VSS

24LC02B/SNG

2 DDCA_SDA

2 DDCA_SCL

DDC_WP 2

Title	715G2433-A(L1706 down size)
Size	Document Number			Rev
B	INPUT			D
Date:	Thursday , December 07, 2006	Sheet 1 of	4

18

19" LCD Color Monitor

HP L1906

	1	DDCA_SDA	R494
			R495
	1	DDCA_SCL

AVDD_DVI VPLL

AVDD VDDP

VDDC

VMPLL

U401

8

14

98

16

24

32

49

56

75

51

66

82

34

VCC3.3

1

GNDR

20

RIN0N AVDDDVIAVDDDVI

AVDDMPLL

AVDDPLL

AVDDADC

VDDP VDDP VDDP VDDP

VDDC VDDC VDDC

VDDC

81

PA3

LVACKP

59

VCTRL

LVA3P

54

PA0

1

RIN

23

55

PA1

RIN0P

LVA3M

PA2

22

58

1

GIN

GIN0P

LVACKM

PA4

R489

R490

19

60

1

GNDG

GIN0N

LVA2P

NC

NC

21

61

PA5

1

SOG

SOGIN0

LVA2M

1

BIN

18

BIN0P

LVA1P

62

PA6

1

GNDB

17

BIN0N

LVA1M

63

PA7

27

64

PA8

1 HSYNC

HSYNC0

LVA0P

28

65

PA9

1 VSYNC

VSYNC0

LVA0M

10 1/10W

30

DDCA_SDA/RS232_TX

10 1/10W

31

DDCA_SCL/rs232_RX

11/27 R489/R490 Delete

TSUM16AL-LF PQFP-100

LVB3P

67

PB0

68

PB1

LVB3M

PB2

69

LVBCKP

PB3

70

LVBCKM

PB4

71

LVB2P

PB5

72

LVB2M

PB6

73

LVB1P

PB7

74

LVB1M

PB8

VPLL

15

77

REXT

LVB0P

PB9

R403

390 1/10W

78

LVB0M

26

36

REFP

NC

C401

NC

45

46

VCC3.3

0.1uF

25

REFM

NC

GPIO_P23

41

42

GPIO_P22

R486

U402

GPIO_P15/PWM0

35

NC

SST25VF010A-33-4C-SAE

47

PWM2/GPIO_P24

8

2

37

48

VDD

SO

SDO

GPIO_P27/PWM1

C417

7

1

38

85

R488

HOLD#CE#

SCZ

GPIO_P12

3

6

39

86

0.1uF

WP#

SCK

SCK

PWM1/GPIO_P25

4

5

40

VSS

SI

SDI

87

RSTN

WP

88

R418

GPIO_P00/SAR1

89

R420

GPIO_P01/SAR2

10K 1/10W

90

R411

84

GPIO_P02/SAR3

R487

RST

91

GPIO_P06

92

GPIO_P07

93

PWM0/GPIO_P26

94

XIN

96

GPIO_P13

XIN

95

+5V

GPIO_P14

99

GPIO_P16/PWM2

C418

+

XOUT

97

XOUT

10uF/50V

80

BYPASS

C413

44

0.1uF

GPIO_P10/I2C_MCL

R404

43

GPIO_P11/I2C_MDA

10K 1/10W

52

MODE[0]

R424

53

GND GND GND GND GND GND GND GND GND GND

MODE[1]

2 5

11 29 33 50 57 76 79 83

+5V

U703

R415

R416

10K 1/10W

10K 1/10W

2

RESET

3

VCCGND

1

NC(MAX810STRG)

VCC1.8 FB401 VDDC

VCC3.3 FB402

AVDD

VCC3.3 FB405

VPLL

		3	VCC1.8	600 OHM				600 OHM			600 OHM
										C407
				C403	+		C402	C450	+		C416
										0.1uF
PA[0..9]				10uF/50V			0.1uF	10uF/50V			0.1uF
	PA[0..9]	4			C404	C405	C406
					0.1uF	0.1uF	0.1uF

12/07:C403/C408/C418/C450/C453/C717--Change from 67G 2151007RT(105 10UF M 50V) to 67G 315100 7K(105 10UF M 50V)

			VCC3.3 FB403 VDDP			VCC3.3 FB406	VMPLL	VCC3.3 FB404		AVDD_DVI
			600 OHM			600 OHM		600 OHM
			C408 +					C453	+
PB[0..9]	PB[0..9]	4	10uF/50V				C419	10uF/50V	C414	C415
			C409	C410	C411	C412	0.1uF		0.1uF	0.1uF
			0.1uF	0.1uF	0.1uF	0.1uF
			DDC_WP 1
	R405		Q402
			MMBT3904
22K 1/10W
	R406		C422
10K 1/10W			0.1uF
			+5V				VCC3.3

WP

100 1/10W

100 1/10W

100 1/10W

100 1/10W

	VCC3.3
10K 1/10W	R425 10K 1/10W

						+5V		VCC3.3
DET_VGA 1	R496									R408
on_PANEL 3
	NC(10K 1/10W)									10K 1/10W
									R414
on_BACKLIGHT 3								R413
adj_BACKLIGHT 3									220 1/10W
								10K 1/10W
					R484	R485	R430
KEY1	R497
				NC(10K 1/10W)		NC(10K 1/10W)	NC(10K 1/10W)
KEY2 NC(20K 1/10W)			C454
POWER			NC(0.1uF)						Q401
							R422	4.7K 1/10W	PMBS3906	LED_G
				Volume			R423	4.7K 1/10W	R421	220 1/10W
				MUTE
				STANDBY
						R431
						NC(10K 1/10W)
					C425
R426		U403			0.1uF
10K 1/10W
		8	VCC NC		1
R427	100 1/10W	7			2
			WC	E1
R428	100 1/10W	6			3
			SCL	E2
R429	100 1/10W	5			4
			SDA VSS
		M24C04-WMN6TP
	Option					VCC3.3

R409

220 1/10W

Q403

PMBS3906

LED_A

R419 220 1/10W

Reset Circuit

	C421	22pF	R491	10 1/10W XIN
		X401
	14.318MHz		R492	10 1/10W XOUT
	C423	22pF

								CN402
R474	R475	R493					LED_G	1
		10K 1/10W
3.9K 1/10W	3.9K 1/10W	POWER					LED_A	2
								3
								4
KEY2							KEY_MENU	5
			R476	1K 1/10W				6
KEY1				R477	1K 1/10W		KEY_LEFT/AUTO	7
							KEY_RIGHT	8
					C428	C427	C426	CONN
					0.1uF	0.1uF	0.1uF
	C430	D402	D413
	D401 0.1uF	UDZS3.6B	UDZS3.6B
C429
	UDZS3.6B
0.1uF

19	Title	715G2433-A(L1706 down size)
	Size	Document Number			Rev
	C	SCALER			D
	Date:	Thursday , December 07, 2006	Sheet 2 of	4

19" LCD Color Monitor

CN701

1	BL_ON		+5V
2	BL_ADJ
3	+5V									+5V	1,2
4	+5V

5GND

6GND + C710 C709

0.1uF

47uF/25V

CONN

11/21 CN701 change type

12/07:C710/C712/C720/C723--Change from 67G405V470 3P(105 47uF M 16V) to 67G 315470 4K(105 47UF M 25V)

VCC3.3

U704

AP1117E18LA

VCC1.8

3

2

VCC1.8 2

VI

VO

C721

GND

+

C723

C722

0.1uF

47uF/25V

0.1uF

1

11/21 Delete:Q702/D701/D702/R702/R703/R704/C702

ADD:U704/C721/C722/C723

+3V3	1/10W)NC(10K	+5V	+3V3	VLCD
R716			R715 1/10W)NC(10K	VLCD	4
				+5V	+3V3
		R717
		10K 1/10W R714
		10K 1/10W			R721
				Q704	R722
				AO3401	0 1/10W NC
		R725 4.7K 1/10W	R723	C715
2 on_PANEL			51K 1/10W	0.1uF
		C718	Q706	C717 +
			MMBT3904		R727
		0.1uF		10uF/50V	10K 1/10W

10/11 C715 change linking

HP L1906

+5V

R708	1/10W10K			+5V
BL_ON	R710	NC
C711	Q703			R711
	MMBT3904			10K 1/10W
NC	R712	4.7K 1/10W
					on_BACKLIGHT 2
		+5V
			R701
			1K 1/10W
BL_ADJ	R705	4.7K 1/10W	R706	NC
C708		Q701	R707	4.7K 1/10W	Adj_BACKLIGHT 2
1uF/25V		MMBT3904

11/22 C708 change to NC/R705 change to Bead(71G 59B121)

+5V

D704

+5VA SS14

3

U702

2

VCC3.3

VIN

VOUT

1

ADJ

C713

+ C712

C714

AP1084K33LA

0.1uF

TO-263

47uF/25V

0.1uF

+5V

U701

+3V3

NC(AIC1185-33PETR)TO-252

1

VIN

GND(TAB)

VOUT

3

+

C701

C703

C704

NC

NC(47uF/25V)

NC

2

only for 15" panel

Title

715G2433-A(L1706 down size)

Size	Document Number			Rev
B	POWER DC TO DC			D
Date:	Friday , December 08, 2006	Sheet 3	of 4

20

19" LCD Color Monitor

HP L1906

2 PA[0..9]

PA[0..9]

PA0

LVA3P

CN101

PA1

LVA3M

LVB0M

RXO0-

1

2

RXO0+

LVB0P

PA2

LVACKP

PA3

LVACKM

LVB1M

RXO1-

3

4

RXO1+

LVB1P

PA4

LVA2P

LVB2M

RXO2-

5

6

RXO2+

LVB2P

PA5

LVA2M

LVBCKM

RXOC-

7

8

RXOC+

LVBCKP

PA6

LVA1P

LVB3M

RXO3-

9

10

RXO3+

LVB3P

PA7

LVA1M

LVA0M

RXE0-

11

12

RXE0+

LVA0P

PA8

LVA0P

LVA1M

RXE1-

13

14

RXE1+

LVA1P

PA9

LVA0M

LVA2M

RXE2-

15

16

RXE2+

LVA2P

LVACKM

RXEC-

17

18

RXEC+

LVACKP

LVA3M

RXE3-

19

20

RXE3+

LVA3P

21

22

23

24

2 PB[0..9]

PB[0..9]

CONN

PB0

LVB3P

PB1

LVB3M

VLCD

PB2

LVBCKP

PB3

LVBCKM

PB4

LVB2P

PB5

LVB2M

PB6

LVB1P

+

C720

C719

PB7

LVB1M

PB8

LVB0P

47uF/25V

0.1uF

PB9

LVB0M

	Title	715G2433-A(L1706 down size)
21	Size	Document Number			Rev
	A	PANEL INTERFACE			D
	Date:	Thursday , December 07, 2006	Sheet 4 of	4

19" LCD Color Monitor

HP L1906

7.2 Power Board

1

+

BD901

2A

600V

3

2

-

4

2

3

R909

L902

C910

100K 2W

L

+

C907

1500pF/1KV

100uF/450V

R905

D900

1

4

C902

10K 1/8W

BA159GPT

0.001uF/125V

D901

C901

UF4003PT

0.001uF/125V

+

C911

R910

3

2

C912

C916

2

7R5 1/8W

L901

N.C ZD901

22uF/50V

0.1uF/50V

0.1uF/50V

L

RLZ27B

1

D910

4

1

8

6

LL4148WP

IC901

HV

VCC

R912

2

Q900

LD7575

LD7575

7

5

1

FQPF8N60C

N.C

OUT

3

C909

0.47uF/250V

1

3

10 1/8W

RT

CS

R911

GND

COMP

R915

10K 1/10W

R901

100K 1/10W

4

2

330K 1/8W

R913

R900

R902

1K 1/10W

R916

330K 1/8W

330K 1/8W

C913

0.43 2W

220pF/50V

1

NR901

5 ohm/8A

C914

t

2

470PF/25V

						D911
						LL4148WP
		F901	GND1	GND2
		2.5A/250V
							N.C
			1	1
			GND	GND
							2
3						1	Q910
CN901	1		HS3 D920	HS4 Q900	C915	0.1UF/25V	PMBS3906
			2	2			3
2
			1	1
SOCKET			HEAT SINK	HEAT SINK

R951

R952

47

1/8W

C920

R953

0.001uF/500V

47 1/8W

47 1/8W

3

D920

19mm, 13x16size

J901

SBT150-10LS

TIN COATED

T901

2

L921

3.5UH

F902

4

0 1/8W

J902

+12V

O

12

1

TIN COATED

+ C922

+ C923

+ C924

+

11

R931

2

680uF/25V

680uF/25V 680uF/25V

C925

ZD920

10K 1/8W

470UF/25V

TPSMP9 1A-E3 DO-220AA

O 10

J903

L922

3.5UH

1

F903

TIN COATED

6

8

3

0 1/8W

+5V

7

J904

+

2

2

+ C926

TIN COATED

N.C D921

+ C932

C927

O 9

1O

1

FMW-2156

1000uF/16V

1000uF/16V

470UF/25V

J905

D922

TIN COATED

R954

3A/60V

C921

J906

47 1/8W

0.001uF/500V

TIN COATED

R955

47 1/8W

J907

R956

TIN COATED

47 1/8W

2

2

CN902

ZD921

ZD922

CONNECTOR

J908

RLZ13B

RLZ5.1B

1

TIN COATED

ON/OFF

audio 12V

C900

470 1/4W

1

3

DIM

R922

1

2

0.0022UF

4

5

J909

D915

D916

6

TIN COATED

LL4148WP

LL4148WP

7

+5V

8

9

R926

10

J910

33K 1/10W 1%

TIN COATED

4

1

R925

R923

R924

C931

3.6K 1/10W 1%

IC902

1K 1/10W

10K 1/10W

0.1uF/50V

C930

J911

PC123FY2 4P

R927

0.1uF/50V

TIN COATED

3

2

1K 1/10W

C928

C929

0.1uF/50V

0.1uF/50V

R928

1K 1/4W

R930

IC921

KIA431

1K 1/10W

R929

2.4K 1/10W 1%

AOC (Top Victory) Electronics Co., Ltd.

RJ901

RJ902

Title

PWPC1742HDE1(715G1823-I)

0 1/8W

0 1/8W

Size

Document Number

Rev

Custom

A

Date:

Wednesday , Nov ember 22, 2006

Sheet 1 of

1

22

19" LCD Color Monitor

HP L1906

RJ802

PT801

CN801

RJ801

0 1/8W

RJ803

80GL17T-36-DN

0 1/8W

0 1/10W

RJ804

5

7

2

0 1/8W

R836

C828,C829

3

1K 1/10W

+12V

C816

1

4

33G8021-2D-U

15 1/8W

15 1/8W

10PF/3KV

R802

R804

R805

N.C C828

R818

R819

1

8

CN802

300K 1/8W

10K 1/8W

470 1/8W

+

2

0.1uF/50V

3

Q802

C811

C817

ON/OFF

1

Q803

470UF/25V

1500PF/50V

1500PF/50V

1

PMBS3904

2 3

C812

C813

3PF/3KV

Q801

PMBS3904

33G8021-2D-U

R803

PMBS3904

2

1

N.C R839

R821

10K 1/10W

3

N.C C814

1

VCC

100K 1/10W

R822

2

33K 1/8W

1000P/50V

100PF/50V

3M / 1/2W

3

2

ZD801

C830

R820

N.C C801

270PF/50V

1

RLZ5.6B

15K 1/10W

C818

N.C R806

0.1uF/50V

R825

560 1/10W

470 1/8W

8

7

6

5

D802

BAV99

+5V

R807

Q805

D1N

D1N

D2P

D2P

22 1/8W

AM9945

S1N

G1N

S2P

G2P

1

2

100PF/50V

R827

N.C R838

C831

1

2

3

4

N.C R823

3.6K 1/10W 1%

0 1/8W

D801

75K 1/10W

3

BAV70

DIM

R808

R809

17" R826 390

10K 1/8W

1M 1/10W

N.CR844 39K 1/10W

R810

100K 1/10W

C806

1UF/25V

100K 1/10W

1M 1/10W

36K 1/10W 1%

C819

0.022uF/50V

R826 300 1/10W 1%

R841 360 1/10W 1%

ohm= 6.5mA

R815

R816

R817

19" R826 300 ohm

R842

IC801

R837

=7.5mA

10 1/10W

1

DRV1

PGND

16 10 1/10W

7.5mA

2

15

VDDA

DRV2

3

TIMER GNDA

14

1Mohm brust frequency:400HZ

4

13

DIM

CT

5

12

6

ISEN SSTCMP

11

R812

VSEN

LCT

7

10

OVPT

ENA

10K 1/10W

8

9

NC1

NC2

180K 1/10W

N.C

C805

1000PF/50V

R813 1M 1/10W

R814 56K 1/10W

OZ9938

C807

0.01uF

C808

C809

0.047UF/50V

C810

560PF/50V

C803 N.C

R811

C804 2.2uF/25V

J811

TIN COATED

PT802

CN803

80GL19T-36-DN

J812

J814

J815

J816

J817

5

7

1

TIN COATED

TIN COATED

TIN COATED

TIN COATED

TIN COATED

R843

3

1K 1/10W

15 1/8W

2

J818

4

C825

TIN COATED

J819

J820

J821

J822

R828

R829

1500PF/50V 15 1/8W

10PF/3KV

33G8021-2D-U

TIN COATED

TIN COATED

TIN COATED

TIN COATED

C820

+

CN804

1

8

470UF/25V

N.C C829

1500PF/50V

1

0.1uF/50V

J823

C822

N.C R840

N.C C815

R831

C826

2

TIN COATED

3PF/3KV

C823

33G8021-2D-U

100K 1/10W

R832

33K 1/8W

1000P/50V

100PF/50V

R830

270PF/50V

3M / 1/2W

C832

C827

Q806

15K 1/10W

8

7

6

5

AM9945

2

R835

D1N

D1N

D2P

D2P

560 1/10W

3

S1N

G1N

S2P

G2P

1

D804

AOC (Top Victory) Electronics Co., Ltd.

1

2

3

4

1

2

BAV99

Title

2. FOR 17" 4 LAMPS INVERTER

R834

D803

N.C R833

3.6K 1/10W 1%

23

BAV70

C833

100PF/50V75K 1/10W

Size

Document Number

Rev

3

PWPC1742HDE1

A

Date:

Sheet

Wednesday , Nov ember 22, 2006

1

of

1

19" LCD Color Monitor

HP L1906

8. PCB Layout

8.1 Main Board

24