HP VS15 Series User manual

SERVICE MANUAL
15” LCD Monitor
VS15 Series
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY
REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE
CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF
PUBLICATION AND DISCLAIMS RELIABILITY FOR CHANGES, ERRORS OR OMISSIONS.
MANUFACTURE DATA: Dec-29-2004

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Table of Contents
Table of Contents ---------------------------------------------------------------------------------- 02
Revision List ---------------------------------------------------------------------------------------- 04
1.Product Feature --------------------------------------------------------------------------------05
2.LCD Monitor Description -----------------------------------------------------------------------05
3.Operation Instructions --------------------------------------------------------------------------06
3.1 General Instructions -----------------------------------------------------------------------06
3.2 Control Button -------------------------------------------------------------------------------07
3.3 Adjusting The Picture ---------------------------------------------------------------------08
4. Input/Output Specification ---------------- --------------------------------------------------- 10
4.1 Input Signal Connector --------------------------------------------------------------------10
4.2 Factory Preset Display Modes ----------------------------------------------------------11
4.3 Power Supply Requirements ------------------------------------------------------------11
5.Panel Specification (LG E03/AU EN04) -----------------------------------------------12
5.1 General Feature ----------------------------------------------------------------------------12
5.2 Optical Characteristics --------------------------------------------------------------------14
6. Block Diagram -----------------------------------------------------------------------------------16
6.1 Monitor Exploded View ------------------------------------------------------------------16
6.2 Software Flow Chart -----------------------------------------------------------------------17
6.3 Electrical Block Diagram -----------------------------------------------------------------18
6.3.1 Scalar Board ---------------------------------------------------------------------------18
6.3.2 Inverter/Power Board ----------------------------------------------------------------20
7. Schematic -----------------------------------------------------------------------------------------21

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7.1 For LG Panel (Scaler:TSU16AK) -------------------------------------------------21
7.1.1Main Board ---------------------------------------------------------------------21
7.1.2 Audio Board ---------------------------------------------------------------------27
7.1.3 Power Board --------------------------------------------------------------------28
7.2 For AU Panel (Scaler:ADE3800SXL) --------------------------------------------30
7.2.1Main Board ---------------------------------------------------------------------30
7.2.2 Audio Board ---------------------------------------------------------------------35
7.2.3 Power Board --------------------------------------------------------------------36
8. PCB Layout ---------------------------------------------------------------------------------------38
8.1 Main Board -----------------------------------------------------------------------------------38
8.2 Inverter/Power Board ----------------------------------------------------------------------40
8.3 Keypad Board ------------------------------------------------------------------------------44
9. Maintainability ------------------------------------------------------------------------------------45
9.1 Equipments and Tools Requirements -------------------------------------------------45
9.2 Trouble Shooting ---------------------------------------------------------------------------46
9.2.1 Main Board ------------------------------------------------------------------------46
9.2.2 Power/Inverter Board -------------------------------------------------------------49
9.2.3 Key Pad Board -----------------------------------------------------------------------51
10. White-Balance, Luminance Adjustment ----------------------------------------------- 52
11. EDID Content -----------------------------------------------------------------------------------53
12. BOM List ----------------------------------------------------------------------------------54～79
12.1 T560KCFDKHHPA -----------------------------------------------------------------54～66
12.2 T560KS4DKHHPA -----------------------------------------------------------------67～79

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Revision List
Revision Date Change Description
A00 Dec-29-04

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1. Product Feature
38.1cm (15”) a-si TFTActive matrix LCD panel, 0.297mm dot pitch
Scalar chipset: MST TSV15AK
Microprocessor controlled scan technology
450:1 Typical Contrast Ratio and 250-nits typical Brightness
Response time 16ms and Viewing Angle 130(Horizontal) and 100(Vertical)
11 factory presets, user mode 10
Vertical refresh rate 50Hz to 76Hz; Horizontal frequency 30kHz to 60kHz
Resolutions: 640 x 480 up to 1024 x768
Power Internal AC100V-240V
Tilt -5° to 30°
CE mark
TCO 03 mark
VESA DPMS compliant
VESA DDC2B compliant and DDC/CI interface.
2. LCD Monitor Description
The LCD Monitor will contain main board, power board, key board,Audio board and 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
Flat Panel and
CCFL backlight
Main Board
Keyboard
RS232 Connector
For white balance
adjustment in
factory mode
HOST Computer
CCFT Drive.
AC-IN
100V-240V
Monitor Block Diagram
Audio board

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3. Operation Instructions
3.1 General Instructions
Press the power button to turn the monitor on or off. The other control buttons are located on the
side of the front 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.

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3.2 Control Buttons

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3.3 Adjust the Picture

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4. Input/Output Specification
4.1 Input Signal Connector
PIN MNEMONIC SIGNAL PIN MNEMONIC SIGNAL
1 RV Red Video 9 +5 V +5 V (from PC)
2 GV Green Video 10 SG Sync Ground
3 BV Blue Video 11 NC None (Reserved for
Factory Use)
4 NC
PC Connect detection 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
1. Brightness
Adjust the brightness.
2. Contrast Adjust the contrast
3. Image Control
Adjust the:
zAuto Adjustment: Adjusts the main settings and produces a stable,
centered image.
zH-Position: horizontal position of the screen image.
zV-Position: vertical position of the screen image.
zClock: frequency of the pixel clock to minimize vertical bar.
zPhase: phase value to minimize horizontal jitters.
4. Volume Adjust the volume
5. Color
z9300K: recall 9300K colo
r
z6500K: recall 6500K color
zSRGB: recall SRGB color
zCustom Color: adjusts the color tint of white, and the red, green, and
blue
(
RGB
)
mix for colors.
6. Language Shows the language of the OSD window.
7. Management
zPower Saver: enable/disable power saving
zPower On Recall: enable/disable power recall
zMode Display: enable/disable mode display
zSleep Timer: set sleep timer
zBasic Menu: set to basic menu
8. OSD Control OSD (on Screen Display) settings: adjusts the H/V position, timeout, On Screen Display window.
9. Information Current setting, recommended setting, serial number, total hours, backlight hours, Exit.
10. Factory
Reset Resets the display to original factory settings for color, brightness, phase, and clock.
11. Exit Exit the current OSD window.

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VGA connector layout
PIN 1 PIN 5
PIN 11
4.2 Factory Preset Display Modes
Factory Pre-set Video Input Modes
Pre-set Pixel Format Horizontal
Frequency (kHz)
Vertical Frequency
(Hz)
1 640 x 480 31.5 60.0
2 640 x 480 37.9 72.0
3 640 x 480 37.5 75.0
4 720 x 400 31.5 70.0
5 800 x 600 37.9 60.0
6 800 x 600 48.1 72.0
7 800 x 600 46.9 75.0
8 832 x 624 49.7 75.0

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9 1024 x 768 48.4 60.0
10 1024 x 768 56.5 70.0
11 1024 x 768 60.0 75.0
4.3 Power Supply Requirements
PARAMETER RANGE
AC Input Voltage 90 to 264V
AC Input Frequency 47 to 63 Hz
Inrush Current 50AMAX AT 220VAC and 30AAT 120VAC
Leakage Current 5 mA MAX at 120VAC
Power consumption 26W
5. PANEL SPECIFICATION
5.1 General Feature
SUMSANG LTM150XO-LO1

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CPT CLAA150XP02

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5.2 Optical Characteristics
SUMSANG LTM150XO-LO1

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CPT CLAA150XP02

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6. Block Diagram
6.1 Monitor Exploded View

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6.2 Software Flow Chart
1) MCU initialize.
2) Is the eeprom blank?
3) Program the eeprom by default values.
4) Get the PWM value of brightness from
eeprom. Check the pin PANEL1 and PANEL2
to tell which panel to get with it.
5) Is the power key pressed?
6) Clear all global flags.
7) Are the AUTO and SELECT keys pressed?
8) Enter factory mode.
9) Saving the power key status into eeprom.
Turn on the LED and set it to green color.
Scalarinitializes.
10) In standby mode?
11) Update the lifetime of back light.
12) Check the analog and digital port, are there
any signals coming?
13) Does the scalar send out a interrupt request?
14) Wake up the scalar.
15) Are there any signals coming from analog or
digitalport?
16) Display " No Input Signal " message. And go
into standby mode after the message
disappear.
17) Program the scalar to be able to show the
coming mode.
18) ProcesstheOSDdisplay.
19) Read the keyboard. Is the power key
pressed?
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
1
5
Y
N
16
1
7
19
Y
N
18

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6.3 Electrical Block Diagram
6.3.1 Scalar Board Block Diagram

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6.3.2 Inverter / Power Board Block Diagram
Inverter Block Diagram

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Power Block Diagram

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7. Schematic
7.1 FOR SAMSUNG Panel (Scaler: TSU16AK)
7.1.1 Main Board
VCPU
VAA4
BA[0..5]
VLCD_12V
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
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
VCC1.8
5V
VCC1.8
B1
3.INPUT
RIN
GIN
BIN
VSYNC
GNDR
GNDG
GNDB
ST_DET1 HSYNC
SOGDDC_CLK
DDC_DAT
TXD
RXD
DDC_WP
VAA1
OSP
B5
5.PANEL INTERFACE
VLCD
PA[0..9]
GPO[0..4]
PB[0..9]
OSP
ESP
GA[0..3]
BA[0..5]
VLCD_12V
B6
7.AUDIO
VOLUME
OUT-R-
OUT-R+
OUT-L+
OUT-L-
LOUT+1
ROUT+1
VCC5V
AUDIO_SD
GND
5V
VCC3.3
VCPU
PA[0..9]
VAA2
VAA1
GPO[0..4]
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
VLCD
VLCD_12V
VCC5V
VCC5V
VAA3 ESP
GA[0..3]
VLCD
VCC3.3 VAA4
PB[0..9]
VAA3VAA2
5V