HP S17X, VS17X Service Manual

17" LCD Color Monitor HP VS17X

1

Service

Service

Service

Horizontal Frequency

30- 83 kHz

TABLE OF CONTENTS

Description Page Description Page

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.

Table Of Contents.......……..............................…........1

Revision List.…........................................……......2

1. Monitor Specification..............................………........3

2. LCD Monitor Description…………………………….......4

3. Operation Instruction…………...............……...........4

3.1. General Instructions...........................…...........4

3.2. Control Button…………….…..............……...............4

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...............................8

5. Panel Specification.....……………….............................9

5.1. General Feature…….....………………..................9

5.2. Optical Characteristics………………………………10

6. Block Diagram……...................…………................11

6.1. Monitor Exploded View…………………....….......11

6.2 Software Flow Chart………………………….……….12

6.3. Electrical Block Diagram……………..….......14

7. Schematic……………......................................16

7.1 Main Board....……….......................................16

7.2 Power Board.….……....................................23

8.PCB Layout..………….......................................25

8.1. Main Board………................................................25

8.2. Power Board….......................................28

8.3. Key Board………............….......................30

9. Maintainability………...............................................31

9.1. Equipments and Tools Requirement.....................31

9.2. Trouble Shooting………...................................32

9.2.1 Main Board…………........................................32

9.2.2 Power Board………………….............................34

9.2.3 Key Board……………………..............................36

10 White-Balance, Luminance adjustment...37

11. Check List.……………………………..…………….39

12. BOM List……………………..………………………44

13. Different Parts List….............................................59

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

17" LCD Color Monitor HP VS17X

2

Revision List

Version Date Revision History TPV Model Name

A00 Sep.-14-06 Initial release

T76CM4DKAJHPAE

T76CM4DKAJHAAS

17" LCD Color Monitor HP VS17X

3

1. Monitor Specification

Items Description

LCD Panel

Driving system TFT Color LCD

Panel CLAA170EA 07

Display area 337.920(H) x270.336 (V) (17.0")

Pixel pitch 0.264mm(H) x 0.264mm(V)

Viewable angle 140˚ (H) 130˚ (V)

Response time (typ.) 12ms

Brightness 300cd/m²

Contrast 500:1

Input

Terminals VGA 15-Pin D-type connector

Video Analog

Sync. Type H/V TTL

H-Frequency 30kHz – 83kHz

V-Frequency 50-76Hz

Display Colors 16.2 million Colors

Max. Resolution 1280 x 1024 (75Hz)

Plug & Play VESA DDC2BTM

Power Consumption

ON Mode

≤

37W

Sleep Mode

≤

2W

OFF Mode

≤

1W

Power Source 100~240VAC,50~60Hz

Relative Humidity 20% to 80%

Environmental

Considerations

Operating Temp: 5°C to 35°C

Storage Temp.: -20°C to 60°C

Operating Humidity : 20% to 80%

17" LCD Color Monitor HP VS17X

4

2. LCD Monitor Description

The LCD Monitor will contain main board, power board, a key 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.

Video signal, DDC

Power Board

(

Include adapter board)

Flat Panel and

CCFL backlight

Main Board

RS232 Connector

For white balance

adjustment in

factory mode

HOST Computer

CCFT Drive.

AC-IN

110V-240V

Monitor Block Diagram

Keyboard

17" LCD Color Monitor HP VS17X

5

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.

3.2 Control Buttons

- Power Button:

When pressed, the monitor enters the off mode, and the LED turns blank. Press again to restore normal status.

- Left / Right Button:

When the OSD show on screen, Left/Right Button are used to control the monitor functions. Press to switch
functions or adjust settings. And if the OSD off, Left buttons is used to automatically set the H Position, V Position,
Clock and Phase.

- Power Indicator:

Green — Power On mode.
Orange — Power Saving mode.
Blank — Power Off Mode.

17" LCD Color Monitor HP VS17X

6

17" LCD Color Monitor HP VS17X

7

3.3 Adjust the Picture

NO. Control Icons NO. Control Icons

1 Brightness

16 Clock Phase

2 Contrast

17 Power Saver

3 Auto Adjustment

18 Mode Display

4 Image Control

19 Power-On Status Display

5 Color

20 Sleep Timer

6 Custom Color

21 Basic Menu

7 Language

22 Advanced Menu

8 Management

23 Power On Recall

9 OSD Control

24 Horizontal OSD Position

10 Information 25 Vertical OSD Position

11 Factory Reset

26 OSD Timeout

12 Default Video Input

27 OSD Transparency

13 Horizontal Position

28 Volume

14 Vertical Position

29 Exit

15 Clock

17" LCD Color Monitor HP VS17X

8

4. Input/Output Specification

4.1 Input Signal Connector

Pin Mnemonic Signal Pin Mnemonic Signal

1 RV Red Video 9 +3.3/+5 V 3.3/+5 V (from PC)

2 GV Green Video 10 SG Sync Ground

3 BV Blue Video 11 NC None

4 NC None 12 SDA DDC Data

5 GND Ground (DDC Return) 13 HS Horizontal Sync

6 RG Red GND 14 VS Vertical Sync

7 GG Green GND 15 SCL DDC Clock

8 BG Blue GND

VGA connector layout

PIN 1

PIN 5

PIN 11

17" LCD Color Monitor HP VS17X

9

4.2 Factory Preset Display Modes

Preset

Pixel

Format

Horz Freq

(KHz)

Horz

Polarity

Vert Freq

(Hz)

Vert

Polarity

Pixel Clk

(MHz) Source

1 640 x 480 31.469 - 59.940 - 25.175 VGA

2 640 x 480 37.861 - 72.809 - 31.500 VESA

3 640 x 480 37.500 - 75.000 - 31.500 VESA

4 720 x 400 31.469 - 70.087 + 28.322 VGA

5 800 x 600 37.879

+

60.317 + 40.000 VESA

6 800 x 600 48.077 + 72.188 + 50.000 VESA

7 800 x 600 46.875 + 75.000 + 49.500 VESA

8 832 x 624 49.726 ± 74.551 ± 57.284 MAC

9 1024 x 768 48.363 - 60.004 - 65.000 VESA

10 1024 x 768 56.476 - 70.069 - 75.000 VESA

11 1024 x 768 60.023 + 75.029 + 78.750 VESA

12 1152 x 870 68.68 - 75.06 - 100.000 Mac

13 1152 x 900 71.71 - 76.05 - 105.561 Sun

14 1280 x 1024 63.98 + 60.02 + 108.000 VESA

15 1280 x 1024 79.97 + 75.02 + 135.000 VESA

4.3 Power Supply Requirements

Parameter Range

AC Input Voltage 90 to 265V

AC Input Frequency 47 to 63 Hz

Inrush Current 50A MAX AT 220VAC and 30A AT 120VAC

Leakage Current 5 mA MAX at 120VAC

Power Consumption

≤37W

17" LCD Color Monitor HP VS17X

10

5. Panel Specification

5.1 General Feature

absolute maximum ratings

17" LCD Color Monitor HP VS17X

11

5.2 Optical Characteristics

Ta=25℃，VCC=5.0V

17" LCD Color Monitor HP VS17X

12

6. Block Diagram

6.1 Monitor Exploded View

.

17" LCD Color Monitor HP VS17X

13

6.2 Software Flow Chart

1

2

N

Y

5

Y

N

10

Y

N

12

Y

N

7

Y

N

6

4

3

8

9

14

11

13

Y

N

15

Y

N

16

17

19

Y

N

18

17" LCD Color Monitor HP VS17X

14

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?

17" LCD Color Monitor HP VS17X

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6.3 Electrical Block Diagram

6.3.1 Scalar Board

LCD Interface

Scalar MST8116B

(Include: ADC, OSD，MCU etc)

W78E65P-40

44PIN-PLCC

OSD Control

Interface (Keypad)

D-SUB

Connector

EEPROM

24C02

Crystal

14.318MHZ

EEPROM

AT24C 16

17" LCD Color Monitor HP VS17X

16

6.3.2 Inverter / Power Board

CN902

DIM

EMI filter

Bridge

Rectifier

and Filter

StartCircuit

PWM

Control IC

Transformer

Rectifier

diodes

AC input

12V

ON/OFF

Control

PWM

Control IC

Feedback

Circuit

LC

Resonance

Transformer

MOSFET

Over

Voltage

Lamp

ON/OFF

Feedback

Circuit

Over

Voltage

Protect

5V

17" LCD Color Monitor HP VS17X

17

7. Schematic

7.1 Main Board

BA[0..5]

TOP

A

B

17Monday, September 13, 2004

Title

Size Document Number Rev

Date: Sheet

of

5V

B4

2.POWER

onPanel_5V/3.3V

onBACKLITE

AdjBACKLITE

VCC3.3
VCC1.8

VAA1

VAA2
VAA3
VAA4

VLCD

VCPU

VLCD_12V

onPanel_12V

VCC5V

GND

5V

OSP

VAA3

B5

5.PANEL INTERFACE

VLCD

PA[0..9]

GPO[0..4]

PB[0..9]

OSP

ESP

GA[0..3]

BA[0..5]

VLCD_12V

ESP

VAA3

VAA4

SCHEMATIC

VAA1

VLCD

B2

4.SCALER

RIN

GIN

SOG

BIN

GNDR

GNDG

GNDB

HSYNC

VSYNC

CSZ

SCL
SDA
HWRESET

INT

VOLUME

AdjBACKLITE

PA[0..9]

VCC1.8

VCC3.3

VAA1

VAA2

VAA3

VAA4

AD0
AD1
AD2

AD3

PB[0..9]

GA[0..3]

BA[0..5]

ESP

GPO[0..4]

OSP

VCPU

B6

7.AUDIO

VOLUME

OUT-R­OUT-R+
OUT-L+

OUT-L­LOUT+1

ROUT+1

VCC5V

AUDIO_SD

GND

5V

VAA2

B3

6.MCU

onBACKLITE

onPANEL_5V/3.3V

SDA

INT

CSZ

DDC_DAT

ST_DET1

SCL

HWRESET

DDC_CLK

VCPU

RXD

TXD

AD0
AD1

AD2

AD3

AUDIO_SD

ROUT+1

OUT-L+

onPANEL_12V

LOUT+1

OUT-R-

OUT-R+

OUT-L-

DDC_WP

VAA1

5V

VAA4

VCPU

VCC1.8

VLCD_12V

GPO[0..4]

B1

3.INPUT

RIN

GIN

BIN

VSYNC

GNDR

GNDG

GNDB

ST_DET1 HSYNC

SOGDDC_CLK

DDC_DAT

TXD

RXD

DDC_WP

VCC5V

PB[0..9]

PA[0..9]

VCC3.3

GA[0..3]

VCC1.8

VLCD

VCC3.3

VCC5V

VAA2

VLCD_12V

17" LCD Color Monitor HP VS17X

18

5V

VAA1

FB201
NC

VCC5V+

R215

10K 1/16W

VAA2 4,7

VCC3.3

POWER

A

B

27Thursday, November 18, 2004

Title

Size Document Number Rev

Date: Sheet

of

+

C202

220uF/25V

VCPU 6

R209

NC

D201 DIODE SCHOTTKY

VCC3.3 4,7

VAA4

5V

D202

DIODE

R

10K 1/16W

Q202

PMBS3904

32

1

VCC5V+

R201 4.7K 1/16W

+

C213

47uF/16V

VCC12V

FB202
600 OHM

Q204

PMBS3904

32

1

H2

H8D3.5-2LX

123

4

5

678

9

123

4

5

678

9

R216

4.7K 1/16W

VCC5V

GND 3,4,5,6,7

C201

0.1uF

+

C204

220uF/25V

VCC1.8

GND

H3

H8D3.5-2LX

123

4

5

678

9

123

4

5

678

9

VCC5V

VLCD 5

VAA2

VCC5V

C230

NC 0.47uF

C212

0.1uF

VS19

VAA3

GND

VCC1.8 4

R210

0 1/16W

VCC5V

VCC5V

Q206
AO3407

VCC5V

TO-252

Q201
PMBS3904

32

1

C210

0.1uF

onPanel_5V/3.3V6

R212 4.7K 1/16W

5V 7

VAA3 4,7

VCC3.3

GND

U202

AIC1084-33M

3

1

2

VIN

ADJ

VOUT

+

C209

47uF/16V

CN201

CONN

2
4
6
8
10
12

1
3
5
7
9

11

GND

H4

H8D3.5-2LX

123

4

5

678

9

123

4

5

678

9

VCC12V

VCC12V

R214 4.7K 1/16W

+

C211

47uF/16V

C207

0.1uF

Q205

PMBS3904

32

1

C

0.1uF

VAA4 4,7

R202

10K 1/16W

VCC5V 3,4,7

C214

0.1uF

VAA1 4,7

VCPU 6

5V

U201

AZ1117D-1.8

3 2

1

VI VO

GND

U201 change to 1.8V

VCC5V

DIM

R211

10K 1/16W

C216

0.1uF

C206

1uF

VCC5V

R207 4.7K 1/16W

R203

1K 1/16W

VCC5V+

onBACKLITE 6

5V

onPanel_12V6

TO-263

Brightness

VCPU

VLCD_12V

C217

0.1uF

VCC12V

R204

10K 1/16W

R208

10K 1/16W

C203

0.1uF

AdjBACKLITE4

VS17

VLCD

Q203
AO3401

+

C208
10uF/16V

ON_OFF

+

C218

10uF/16V

+

C215

47uF/16V

+

C219

220uF/25V

C205

0.1uF

C220

0.1uF

H1

H8D3.5-2LX

123

4

5

678

9

123

4

5

678

9

R205 4.7K 1/16W

VCC12V

VLCD_12V 5