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 W19
Revision List
Version Date Revision History TPV Model Name
A00 Jun.-03-2007 first release T97MM2HKWEHANE
A01 Jun.-19-2007 Add TPVDW Model in Item 12T97SM2HKWEHANE
A02 Sep.-04-2007 Add TPVDW Model in Item 12
T97MM2HTWEHPNNE
T97SM2HTWEHPNNE
2
19" LCD Color Monitor HP W19
1. Monitor Specification
3
19" LCD Color Monitor HP W19
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.
Inverter board
Adaptor board
DC-IN
12V
Monitor Block Diagram
CCFL Drive.
Main Board
Keyboard
HOST Computer
Flat Panel and
CCFL backlight
RS232 Connector
For white balance
adjustment in factory
mode
Video signal
AC-IN
100V-240V
4
19" LCD Color Monitor HP W19
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
3.3 Adjust the Picture
5
19" LCD Color Monitor HP W19
6
19" LCD Color Monitor HP W19
4. Input/Output Specification
4.1 Input Signal Connector
7
19" LCD Color Monitor HP W19
4.2 Factory Preset Display Modes
8
19" LCD Color Monitor HP W19
5. Panel Specification
5.1 General Feature
Mechanical Information
5.2 Optical Characteristics
TFT LCD Module:
Back Light Unit:
Optical Specification
9
19" LCD Color Monitor HP W19
6. Block Diagram
6.1 Monitor Exploded View
10
19" LCD Color Monitor HP W19
6.2 Software Flow Chart
1
Y
2
N
3
4
5
N
Y
6
N
7
8
Y
9
10
N
11
12
Y
13
N
N
Y
14
15
Y
N
16
Y
17
18
N
19
Y
11
19" LCD Color Monitor HP W19
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?
12
19" LCD Color Monitor HP W19
_
6.3 Electrical Block Diagram
6.3.1 Scalar Board
LCD Interface
(CN503)
MCU
MTV512GMV PLCC-44
(U601)
Crystal
X601
24Mhz
Key Board
CN602
EEPROM
M24C16
(U602)
EPR_SDA
EPR_SCL
DB15_SDA,
DB15
H sync
V sync
RGB
Connector
SCL
D-Sub
(CN301)
EEPROM
M24C02
(U301)
TSU56AK-LF
(Include ADC, OSD)
(U401)
14.318Mhz
Crystal
X401
RGB
CLK+
CLK-
SDA,
SCL
DVI
Connector
(CN302)
EEPROM
M24C02
(U302)
13
19" LCD Color Monitor HP W19
6.3.2 Inverter / Power Board
AC inlet filter Rectifier and filter
Start circuit R903;R904
Switching circuit
PWM control IC&MOSFET
On/off control
Start circuit
PWM control IC
BUCK and chock
Dimming control
OVP
Transformer
LC royer circuit
Rectifier and filter
D904;D905
Feedback circuit
IC902;IC903
Ballast capacitor
Feebback circuit
12V
To main board
12V
lamp
14
19" LCD Color Monitor HP W19
7. Schematic
7.1 Main Board
15
19" LCD Color Monitor HP W19
16
19" LCD Color Monitor HP W19
17
19" LCD Color Monitor HP W19
18
19" LCD Color Monitor HP W19
19
19" LCD Color Monitor HP W19
20
19" LCD Color Monitor HP W19
7.2 Power Board
Adapter
LED1
R925
472/1206
C910
102/500V/1206
R922
R923
470/1206/0.5W
470/1206/0.5W
12
3
O
4
R903
624/1206
1
12V
C914
C913
0.1UF/0805/X7R
+
1000UF/16V
L903
2
1
C920
73A-253-91L
+
C912
+
1000UF/25V
1000UF/25V
C911
+
1000UF/25V
D904
20A/100V
11.1267.8
12
3
R908
R907
204/1206
R906
204/1206
R905
204/1206
C905
204/1206
152/1KV
C904
+
150UF/400V
3
2
GND
ZD902
RJ1
copper-manganese /8m
12V/SMD
R924
241/DIP
D905
20A/100V
O
3
R909
D901
3R3/1206
FR107
D902
PS102R
R910
471/0805
R904
624/1206
BD901
-+
R911
472/0805
GBU 4A/600V
4
23
R933
R930
9311/0805/+-1%
152/0805
R926
102/0805
C919
T901
PQ26/22.5
O
4700PF/275V
2
C906
+
ZD901
22UF/25V
20V/SMD
R912
472/0805
L902
14
12
VFB
Q902
2N3906
C907
474/0805/Y5V
R902
105/1206
R901
105/1206
R928
102/0805
R927
2
223/0805
-
C915
1
103/0805/X7R
IC903
PC-123
C908
R913
474/0805/Y5V
332/0805
Q903
2N3904
C903
0.47uF/300V
R934
R931
2431/0805/+-1%
134/0805/+-5%
R
IC904
TL431
3
2.5V
+
ST LM358
C918
104/0805/X7R(N.C)
34
R914
open/0805(N.C)
VDD
7
Vin
3
C902
102PF/250V
C901
23
102PF/250V
AK
5
+
2
3
1
5
RT
D903
1N4148/SMD
L901
14
C921
R932
104/0805/X7R
302/0805/+-5%
6
-
IC902
7
D906
BAW56/SMD
Q901
2SK2843
GATE
8
4
RI
R915
R916
103/0805
NR902
2402/0805
NR901
NR
5ohm/5A
F901
R929
153/0805
48
竲
MOSFET S
﹃
R917
0/1206
SG6841
3
SENSE
BiCOMS
FB
12
R921
R920
1R5/1206
R919
1R5/1206
R918
1R5/1206
R935
1R5/1206
1R5/1206
IC901
6
1
2
D907
1N4148/SMD
C909
R936
105/0805/X7R
683/0805
CN901
PLUG AC MALE
C917
105/0805/X7R
C916
471/0805/X7R
VFB
21
2.5A/250V
19" LCD Color Monitor HP W19
Inverter
L103
BEAD 71L55 19
+
C103
470uF/16V
+5V
C110
0.1uF/25V
+12V
2
CN101
F101
1
84L52-5
JACK 88L304 1S
ON/OFF
DIM
L101
BEAD 71L55 28
CON102
CONN 33L8009-12L-H
2
4
6
8
10
12
1
3
5
7
9
11
+12V
C101
+
220uF/25V
+
+12V
C102
220uF/25V
+5V
U101SI-8050SD
12
+VINVOUT
S.S
GND
C108
0.1uF/25V
C109
0.1uF/25V
5
3
R101
NC
VOS
150UH 73L 253 138
4
L102
D101
SR34
R102
0 1/16W
R103
NC
R104
NC
R109
NC
is power GND
is signal GND
22
AOC (Top Victory) Electronics Co., Ltd.
Title
SizeDocument NumberRev
A
琍戳 , る
Date:Sheetof
IDPC1942SEL1(715L1299-1)
17, 2004
1.POWER
21
A
19" LCD Color Monitor HP W19
T
T
T
C
+12V
ON/OFF
DIM
F2014A63V
R201
30K 1/16W
C203
1uF/25V
R202
5.1K 1/16W
OPEN 1/16W
C207
4.7uF/16V
47K 1/16W
C205
R204
10K 1/16W
5.1K 1/16W
C202
0.1uF/25V
R207
+
R205
0.1uF/25V
TL1451ACDR
U201
C208
330pF
R206
47K 1/16W
R203
C206
0.1uF/25V
Q201
DTC144WKA
SCP
REF
2IN+
CTRT1IN+
1234567
Q202
DTA144WKA
C204
0.1uF/25V
R210
15K 1/16W
R208
4.7K 1/16W
C209
1uF/25V
10111213141516
2IN-
2FBK
2OUT
2DTC
1IN-
1FBK
1DTC
1OUT
89
C210
1uF/25V
R209
4.7K 1/16W
R211
15K 1/16W
GND Vcc
C201
+
150uF/25V
C223
150uF/25V
Q203
1
S1
2
S1
3
S1
220 1/16W
32
Q205
R214
3.9K 1/16W
R213
220 1/16W
32
Q206
R215
3.9K 1/16W
4
G1
AO4411
R216
PMBS3904
1
1
R218
470 1/16W
Q204
1
S1
2
S1
3
S1
4
G1
AO4411
R217
PMBS3904
1
1
R219
470 1/16W
C211
1uF/25V
C212
1uF/25V
C230
OPEN
R212
3.9K 1/16W
3.9K 1/16W
C231
+
OPEN
D1
D1
D1
D1
Q207
32
D1
D1
D1
D1
Q208
32
L201
8
7
6
120UH
5
D201
SR24
PMBS3906
L202
8
7
6
120UH
5
D202
SR24
PMBS3906
D203
RLZ11B
R220
15K 1/16W
R222
12K 1/16W
D204
RLZ11B
R221
15K 1/16W
R223
15K 1/16W
C222
0.47uF/25V
R224
2K 1/4W
Q209
2SC5706
Q210
2SC5706
51K 1/16W
C221
0.47uF/25V
R228
2K 1/4W
Q211
2SC5706
Q212
2SC5706
R241
51K 1/16W
R240
R225
R229
2K 1/4W
2K 1/4W
R226
2K 1/4W
2K 1/4W
C213
0.18uF/250V
R238
12K 1/16W
R230
2K 1/4W
2K 1/4W
C214
0.18uF/250V
D208
R239
12K 1/16W
R227
80AL15T-7-YS
D207
R231
5
3
4
2
6
80AL15T-7-YS
1N4148
C220
1uF/25V
PT201
5
3
4
2
6
1N4148
C219
1uF/25V
PT202
9
R232
1K 1/4W
71
D205
D209
R234
620 1/16W
9
R233
71
1K 1/4W
1N4148
R235
620 1/16W
R237
510 1/16W
TP1 HVL
1N4148
1N4148
R236
510 1/16W
D206
D210
OPEN
1
C224
OPEN
1N4148
C225
TP2 HVL
1
C216
22pF/3KV
C215
22pF/3KV
TP4 HVL
1
C218
22pF/3KV
TP3 HVL
1
33L8020-2D & 33L8021-2D LAYOUT
4
3
TP5 HVL
C217
1
22pF/3KV
TP6 HVL
1
1
4
L204
2
3
1
2
33L8020-2D & 33L8021-2D LAYOU
1
2
1
L203
L
2
1
2
33L8020-2D & 33L8021-2D LAYOU
1
2
33L8020-2D & 33L8021-2D LAYOU
L
CN201
CN202
CN203
CN204
AOC (Top Victory) Electronics Co., Ltd.
Title
2. FOR 17"&19" 4 LAMPS INVERTER
SizeDocument NumberRev
IDPC1942SEL1(715L1299-1)
Tuesday, February 17, 2004
Date:Sheetof
22
is power GND
A
is signal GND
23
19" LCD Color Monitor HP W19
8. PCB Layout
8.1 Main Board
24
19" LCD Color Monitor HP W19
25
19" LCD Color Monitor HP W19
26
19" LCD Color Monitor HP W19
8.2 Inverter Board
27
19" LCD Color Monitor HP W19
28
19" LCD Color Monitor HP W19
29
19" LCD Color Monitor HP W19
8.3 Adapter Board
30
19" LCD Color Monitor HP W19
9. Maintainability
9.1 Equipments and Tools Requirement
1. Multi-meter.
2. Oscilloscope.
3. Pattern Generator.
4. DDC Tool with an IBM Compatible Computer.
5. Alignment Tool.
6. LCD Color Analyzer.
7. Service Manual.
8. User Manual.
31
19" LCD Color Monitor HP W19
9.2 Trouble Shooting
9.2.1 Main Board
1. No Screen Appear
Measured CN201 pin5/6 = 12V?
Measured CN201 pin 9/10= 5V?
Measured U202 pin 2= 3.3V?
Yes. There is OSD show Yes, all DC level exist
Check Correspondent component.
Is there any shortage or cold solder?
Disconnected the Signal cable (Loose the
Signal cable), Is the screen show “Cable Not
Connected”?
Show noting
Connected the Signal cable
again Check LED status.
Led Green
Check the Wire-Harness from CN503
OK, Wire tight enough
Check Panel-Power Circuit Block
Led Orange
OK, Panel Power OK
Connected the Signal cable again,
Check LED status.
Check Power switch is in Power-on
status, and check if Power switch had
been stuck?
OK, Keyboard no stuck
Measured RGB (R301, R302, R303) H,V
Input at U401 pin 37,38 ,was there have
signal ?
Led Green
Replace U601
Led orange
Check Correspondent
component short/open
(Protection Diode)
NG
OK, input Normal
Check U401 Data-output Block
OK
Replace Power board and Check
Inverter control relative circuit
Measured Crystal X401 (14.318MHz)
OK, clock normal
Replace U401
Re-do White balance adjust
OK
Note:1. If replace “MAIN-BOARD”, Please re-do “DDC-content” programmed & “WHITE-Balance”.
2. If replace “Power Board” only, Please re-do “ WHITE-Balance”
32
19" LCD Color Monitor HP W19
2. Panel Power Circuit
Check C509 should have response from 0V to 5V
When we switch the power switch from off to on
Check Q204, Q203 is broken or CN503 solder abnormal?
OK
Replace Panel
3. Inverter Control Relative Circuit
NG
OK
NG
Replace Q204, Q203 or re-solder CN503
Measured X601 waveform is normal?
NG
OK
Replace U601
Replace X601
(24MHz)
Measured the inverter connector
CN602
Pin1 on/off control=5V (on)
Pin2 PWM signal control dim 0V-5V
Replace Power board
& Re-do white balance
4. U4-Data Output
Check TSU56AK (U401)
Signal output (PIN102-103, 106-113,118-125,128,1)
Is the waveform ok?
Measured X401 waveform is
normal?
OK
OK
NG
NG
Check the Bklt-On relative circuit, R201, Q201,
In normal operation, when LED =green,
Base of Q201 should =0 v,
In saving mode, when LED=orange,
Base of Q201 should =5 v,
OK
Replace U201
Replace X401(14.318MHz)
OK
Check relative circuit to panel
NG
Check HS/VS input signal are normal?
OK
Replace U401
NG
Check relative component
33
19" LCD Color Monitor HP W19
9.2.2 Power Board
No power
Check AC line volt 110V or 220V
OK
Check the voltage of C904(+)
OK
Check start voltage for the Pin7 of IC901
OK
Check the auxiliary voltage is between 10V-16V
OK
NG
NG
NG
NG
Check AC line
Check F901, bridge rectified circuit
Check R903~R904,IC901
Check IC901,T901,Check ZD901
Check D904,D905,IC903
34
19" LCD Color Monitor HP W19
9.2.3 Key Board
OSD is unstable or not working
Is Keypad board connecting normally?
NG
Connect Keypad Board
Is Button Switch normally?
OK
NG
Replace Button Switch
Is Keypad board normally?
OK
NG
Replace Keypad Board
OK
Check main board
35
19" LCD Color Monitor HP W19
10. White- Balance, Luminance Adjustment
Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment.
Before started adjust white balance , please set the Chroma-7120 MEM Channel 9 to 6500 color, and
MEM Channel 10 to 7800 color. ( our 6500 parameter is x = 313 ±28, y = 329 ±28, Y = 200 ±10 cd/m2 , 7800
parameter is x = 296 ±28, y = 311 ±28, Y = 200 ±10 cd/m2)
How to setting MEM channel you can reference to chroma 7120 user guide or simple use “ SC” key and
“ NEXT” Key to modify xyY value and use “ID” key to modify the TEXT description Following is the procedure
to do white-balance adjust .
Turn on power, press the MENU button, pull out the power cord, and then plug the power cord. Then the factory OSD will
be at the left top of the panel.
1. Bias adjustment :
Set the contrast
Adjust the Brightness
2. Gain adjustment :
Move cursor to “-F-” and press MENU key
A. adjust 6500 color-temperature
1. Switch the chroma-7120 to RGB-mode (with press “MODE” button )
2. Switch the MEM channel to Channel9 ( with up or down arrow on chroma 7120 )
3. The LCD-indicator on chroma 7120 will show x = 313 ±28, y = 329 ±28,Y = 200 ±10 cd/m2
4. Adjust the RED of color1 on factory window until chroma 7120 indicator reached the value R=100
5. Adjust the GREEN of color1 on factory, until chroma 7120 indicator reached G=100
6. Adjust the BLUE of color1 on factory, until chroma 7120 indicator reached B=100
7. Repeat above procedure ( item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2
to 50.
to 90.
B. Adjust 7800 color-temperature
1. Switch the chroma-7120 to RGB-mode (with press “MODE” button )
2. Switch the MEM channel to Channel10 ( with up or down arrow on chroma 7120 )
3.The LCD-indicator on chroma 7120 will show x = 296±28, y = 311±28, Y = 200 ±10 cd/m2
4. Adjust the RED of color2 on factory window until chroma 7120 indicator reached the value R=100
5. Adjust the GREEN of color2 on factory, until chroma 7120 indicator reached G=100
6. Adjust the BLUE of color2 on factory, until chroma 7120 indicator reached B=100
7. Repeat above procedure ( item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2
36
19" LCD Color Monitor HP W19
11. BOM List
T97MM2HKWEHANE
Location Part No. Description
CBPC986KM2HPP MAIN BOARD
IDPC942MH1P INVERTER BOARD
E095 S95G801830715 LVDS ASS'Y
12G6300 11 RUBBER
15G6231 3 MAIN FRAME
15G6232 2 PANEL-SIDE-BKT
40G 58162435A MANUAL LABEL
50G 600 2 HANDLE1
50G 600 3 HANDLE2
52G 1185 MIDDLE TAPE
52G 1186 SMALL TAPE
52G6025 11946 INSULATE SHEET
52G6025 11980 INSULATE SHEET
89G 745GAA AV SIGNAL CABLE DVI GREATL
89G1738HAA 21 SIGNAL CABLE
E089A 89G402A19N IS AC POWER CABLE
H2G8001 1 SCREW
M1G 130 6120 SCREW M3X6
M1G 330 6120 3MMX6 STEEL
M1G3030 6120 SCREW
705G980KP34010 19" STAND ASS'Y
750GLM90A1211Z000H PANEL M190A1-L02 C1 CMO
H12G6200 6 RUBBER
H40G 19E690 1D RATING LABEL
H40G581H690 2A CARTON LABEL
H41G1606690 1A DOC KIT FOR NA (439848 H41G7800690B20 QSG(417324-B21)
H41G7806690 8A SCREEN RESOLUTION(41732
H44G3933690 2C CARTON FOR w19(416688-0
H45G 87 1 4H R EPE COVER
H45G 87 4 H R PE BAG FOR BASE
H52G6025 16 11 INSULATE SHEET
Q15G6335 2 SHIELD
Q34G6203 PC HB 33 BASE
Q41G7800690A25 RTF CARD(419441-B21)
Q44G3933 5 U TYPE SHEET
Q44G3952 3 EPE
Q44G3952 4 EPE
Q45G 76 28 H R PE BAG FOR MANUAL
AD1260ASMTPK LCD ADAPTER ASS'Y FOR S
40G 154501 1 HI-POT GND LABEL FOR MO
40G 45762412B CBPC LABEL
45G 88525 E PE BAG