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19" LCD Color Monitor Adelpia TGL198AW
Service
Service
Service
Horizontal Frequency
30KHz 83KHz
TABLE OF CONTENTS
Description Page Description Page
Table Of Contents..........................................................1 5.2 Electrical Block Diagram....................................17
Revision List.............................................................2 6.Schematic......................................................20
Important Safety Notice.............................................3 6.1 Main Board............................................................20
1. Monitor Specification...............................................4 6.2 Power Board........................................................24
2. LCD Monitor Description........................................5 6.3 Key Board........................................................26
3. Operation Instruction............................................6 7. PCB Layout...........................................................27
3.1 General Instructions.........................................6 7.1 Main Board...........................................................27
3.2 Control Button......................................................6 7.2 Power Board.........................................................29
3.3 Adjusting the Picture..........................................8 7.3 Key Board......................................................30
4. Input/Output Specification.......................................11 8. Maintainability......................................................31
4.1 Input Signal Connector.............................................11
8.1 Equipments and Tools Requirement.......................31
4.2 Factory Preset Display Modes....................................13
8.2 Trouble Shooting..................................................32
4.3 Power supply features.........................................13
9. White-Balance, Luminance adjustment.............38
N
4.4 Panel Specification.................................................14
10. Monitor Exploded View........................................40
5. Block Diagram..........................................................16
11. BOM List.................................................................42
5.1 Software Flow Chart.............................................16
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
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19" LCD Color Monitor Adelpia TGL198AW
Revision List
Revision Date Revision History TPV Model
A00 Nov.-04-08 Initial Release T98MMANFX2UQHN
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19" LCD Color Monitor Adelpia TGL198AW
Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service
procedures recommended by AOC and described in this service manual are effective methods of performing service
operations. Some of these service operations require the use of tools specially designed for the purpose. The special
tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in
order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods
may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE NOT
EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in which
service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the
equipment will be jeopardized by the service method selected.
Hereafter throughout this manual, AOC Company will be referred to as AOC.
WARNING
Use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock,
fire, or other hazards.
Under no circumstances should the original design be modified or altered without written permission from AOC. AOC
assumes no liability, express or implied, arising out of any unauthorized modification of design.
Servicer assumes all liability.
FOR PRODUCTS CONTAINING LASER:
DANGER-Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM.
CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
CAUTION -The use of optical instruments with this product will increase eye hazard.
TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S
REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF
THIS SERVICE MANUAL.
Take care during handling the LCD module with backlight unit
-Must mount the module using mounting holes arranged in four corners.
-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.
-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to the
panel.
-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).
-Make certain that treatment person's body is grounded through wristband.
-Do not leave the module in high temperature and in areas of high humidity for a long time.
-Avoid contact with water as it may a short circuit within the module.
-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may
damage the panel.)
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19" LCD Color Monitor Adelpia TGL198AW
1. Monitor Specifications
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19" LCD Color Monitor Adelpia TGL198AW
2. LCD Monitor Description
The LCD MONITOR will contain a main board, a power board and 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 and the main board chips each voltage.
Monitor Block Diagram
Flat Panel and
CCFL Drive.
CCFL backlight
Power Board Main Board
RS232 Connector
(Contains Adapter, Inverter)
For white balance
adjustment in factory
mode
Key board
Video signal, DDC
HOST Computer
AC IN
100V ~ 240V
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19" LCD Color Monitor Adelpia TGL198AW
3. Operating Instructions
3.1 General Instructions
Press the power button to turn the monitor on or off. The other control buttons are located in the bottom of the bezel. By
changing these settings, the picture can be adjusted to your personal preferences.
- The power cord should be connected.
- Connect the video cable from the monitor to the video card.
- Press the power button to turn on the monitor, the power indicator will light up.
3.2 Control Button
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19" LCD Color Monitor Adelpia TGL198AW
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19" LCD Color Monitor Adelpia TGL198AW
3.3 Adjusting the Picture
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19" LCD Color Monitor Adelpia TGL198AW
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19" LCD Color Monitor Adelpia TGL198AW
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19" LCD Color Monitor Adelpia TGL198AW
4. Input/Output Specification
4.1 Input Signal Connector
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19" LCD Color Monitor Adelpia TGL198AW
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19" LCD Color Monitor Adelpia TGL198AW
4.2 Preset operating modes
4.3 Power Supply Features
· A/C Line voltage range: 90 V - 264 V
· A/C Line frequency range: 50 Hz - 60Hz
· Current: 1.5 A max. at 100V/1.5A max. at 240V
· Peak surge current: < 55 A peak at 240 V AC and cold starting
< 1.5 mA for power from PC-outlet
· Leakage current:
< 3.5 mA for power from Wall-outlet
No adverse effects (no loss of information or defect) with a
· Power line surge:
maximum of 1 half wave missing per second
Power factor correction According to EN 61000-3-2
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19" LCD Color Monitor Adelpia TGL198AW
4.4 Panel Specification
Overview
M190Z1-L01 is a 19" wide TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins
2ch-LVDS interface. This module supports 1680 x 1050 WSXGA+ mode and can display 16.7M colors.
The inverter module for Backlight is not built in.
Features
- Super Wide viewing angle.
- Super High contrast ratio
- Super fast response time
- High color saturation
- WSXGA+ (1680 x 1050 pixels) resolution
- DE (Data Enable) only mode
- LVDS (Low Voltage Differential Signaling) interface
- RoHS Compliance
4.4.1 General Specifications
4.4.2Mechanical Specifications
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19" LCD Color Monitor Adelpia TGL198AW
4.4.3 Electrical Characteristics
4.4.4 Optical Characteristics
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19" LCD Color Monitor Adelpia TGL198AW
5. Block Diagram
5.1 Software Flow Chart
1
Y
2 3
N
4
N
5
Y
6
N
7 8
Y
9
N
10 11
Y
N N
12 13
Y Y
N
14 15 16
Y
17
N
18 19
Y
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19" LCD Color Monitor Adelpia TGL198AW
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 life time of back light.
12). Check the analog port, are there 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
disappears.
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?
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19" LCD Color Monitor Adelpia TGL198AW
5.2 Electrical Block Diagram
5.2.1 Scaler Board Block Diagram
Crystal LCD Interface
(X401) (CN301)
14.31818MHZ
Key Board U401
Control Scalar IC TSUMU58EHL-LF
(CN402) (Include MCU, ADC, OSD)
·
H sync
V sync
RGB
D-Sub DVI
Connector Connector
(CN101) (CN102)
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19" LCD Color Monitor Adelpia TGL198AW
5.2.2 Power Board Block Diagram
AC input
Bridge Transformer Rectifier
EMI filter
Rectifier and Diodes
Filter
Start Circuit
CN902
R904, R905, R906
5V
16V
PWM Feedback ON/OFF
Control IC circuit
DIM
OSC and DC MOSFET
Output Convert Q804, Q809
Lamp
Feedback ON/OFF
PWM
Over Voltage Control
Circuit
Control IC
protect
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19" LCD Color Monitor Adelpia TGL198AW
6. Schematic
6.1 Main Board
FB102
MVCC_1 VGA_B+ 1 2 R105 100R 1/16W 5% C102
BEAD 0.047uF DSUB_B+ 2
2
1
H_Sy nc R102 0R05 1/10W 5% R103 1K 1/16W 5% R108 C105
DSUB_H 2
V_Sy nc R104 1K 1/16W 5% 5pF/50V
DSUB_V 2
D109 75R 1/16W 5%
R106 R107 C103 C104 BAT54C VGA_B- R109 100R 1/16WC106
5%
DSUB_B- 2
0.047uF
2K2 1/16W 5% 2K2 1/16W 5% 22pF 22pF
3
DSUB_5V U104 ESD_VCC FB108 R110 470R 1/16W 5% C107
DSUB_SOG 2
DSUB_SCL 1 6 H_Sy nc FB103 1000pF
2 I/O1 I/O4 5
CN101 DSUB_SDA 3 GNDVDD 4 V_Sy nc VGA_G+ 1 2 R111 100R 1/16W 5% C108
FB107 I/O2 I/O3 300 OHM BEAD 0.047uF DSUB_G+ 2
16
R101 10 AZC099-04S C112 R112 C109
DDC1_SCL DSUB_SCL 15 5 VGA_PLUG NC
FOR EMI 5pF/50V
2 DDC1_SCL
9 DSUB_5V 300 OHM 75R 1/16W 5%
100R 1/16W 5% 14 4 U103
8 VGA_B- C124 VGA_G- R114 100R 1/16W 5% C110
0.1uF 16V DSUB_G- 2
13 3 VGA_B+ ZD104 0.047uF
R113 7 VGA_G- RLZ5.6B ZD105
DDC1_SDA DSUB_SDA 12 2 VGA_G+ RLZ5.6B
2 DDC1_SDA U103
6 VGA_R- ESD_VCC
100R 1/16W 5% 11 1 VGA_R+ VGA_G+ 1 6 FB101
2 I/O1 I/O4 5
DB15 VGA_R+ 3 GNDVDD 4 VGA_B+ VGA_R+ 1 2 R115 100R 1/16W 5%C111
I/O2 I/O3 DSUB_R+ 2
17
BEAD 0.047uF
AZC099-04S C101 R116
NC C113
75R 1/16W 5% 5pF/50V
U101
VGA_R- R117 100R 1/16W 5%
C114
DSUB_R- 2
0.047uF
CMVCC DSUB_5V
2
1
CN102 DVI_5V D104
8 DVI_5V
VSY NC 15 DVI_HPD BAT54C
SY NC GND 6 R118 100R 1/16W 5% DDC2_SCL
DDC SCL DDC2_SCL 2
7 R119 100R 1/16W 5% DDC2_SDA
DDC SDA DDC2_SDA 2
14 R120 10K 1/16W 5% R140
+5V 16
3
HPD NC R123 C116
11 C115 R121 NC NC
1/3shield 3 R122 HDCP_CTRL R124 R125
2/4shield 19 0.1uF/16V NC 2 4K7 1/16W 5% 4K7 1/16W 5% U101
0/5shield 22 Q101 NC 8 1
clk shield NC 7 VCC A0 2
18 R126 10R 1/16W 5% RX0P DDC1_SCL 6 WP A1 3
DAT0+ RX0P 2 SCL A2
17 R127 10R 1/16W 5% RX0N DDC1_SDA 5 4
DAT0- RX0N 2 SDA VSS
10 R128 10R 1/16W 5% RX1P DDC_WP
DAT1+ RX1P 2 2
9 R129 10R 1/16W 5% RX1N
DAT1- RX1N 2
2 R130 10R 1/16W 5% RX2P NC / M24C02-WMN6TP
DAT2+ RX2P 2
1 R131 10R 1/16W 5% RX2N
DAT2- RX2N 2 CMVCC FB104 FB105 DVI_5V
13
DAT3+ 12
DAT3- 5
DAT4+ 4
DAT4-
2
1
21 300 OHM 300 OHM
DAT5+ 20 C121 D108 C122
DAT5- 23 R132 10R 1/16W 5% RXCP 1000pF BAT54C
clk+ RXCP 2 1000pF
24 R134 10R 1/16W 5% RXCN VCC3.3
GND
GND
clk- RXCN 2
JACK
26
25
U107 ESD_VCC U105 ESD_VCC U106 ESD_VCC
3
AZC099-04S AZC099-04S AZC099-04S R133
1 6 1 6 1 6 10K 1/16W 5% C117
2 I/O1 I/O4 5 2 I/O1 I/O4 5 2 I/O1 I/O4 5 R136
3 GNDVDD 4 3 GNDVDD 4 3 GNDVDD 4 R137 R138 NC
I/O2 I/O3 I/O2 I/O3 I/O2 I/O3 DVI_HPD R135 10K 1/16W 5% NC U102
C120 C118 C119 4K7 1/16W 5% 4K7 1/16W 5% 8 1
7 VCC A0 2
NC NC NC VGA_PLUG R139 6K8 1/16W 5% DET_CABLE 2 DDC2_SCL 6 WP A1 3
DDC2_SDA 5 SCL A2 4
SDA VSS
U107 U105 U106 2 DDC_WP
GND POWER DGND NC / M24C02-WMN6TP
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL NEW Q SERIES Size B
G2883-1-X-X-14-080526 TPV MODEL Rev F
Key Component 2.0.INPUT PCB NAME
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Date Monday , May 26, 2008 Sheet 2 of 6
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19" LCD Color Monitor Adelpia TGL198AW
CN301
PA[0..9] PB[0..9]
2 PA[0..9] 2 PB[0..9]
PB0 LVB3P LVB0M RXO0- 30
PA0 LVA3P PB1 LVB3M LVB0P RXO0+ 29
PA1 LVA3M PB2 LVBCKP LVB1M RXO1- 28
PA2 LVACKP PB3 LVBCKM LVB1P RXO1+ 27
PA3 LVACKM PB4 LVB2P LVB2M RXO2- 26
PA4 LVA2P PB5 LVB2M LVB2P RXO2+ 25
PA5 LVA2M PB6 LVB1P 24
PA6 LVA1P PB7 LVB1M LVBCKM RXOC- 23
PA7 LVA1M PB8 LVB0P LVBCKP RXOC+ 22
PA8 LVA0P PB9 LVB0M LVB3M RXO3- 21
PA9 LVA0M LVB3P RXO3+ 20
LVA0M RXE0- 19
LVA0P RXE0+ 18
17
LVA1M RXE1- 16
LVA1P RXE1+ 15
14
LVA2M RXE2- 13
CMVCC LVA2P RXE2+ 12
LVACKM RXEC- 11
LVACKP RXEC+ 10
U301 LVA3M RXE3- 9
1 8 LVA3P RXE3+ 8
R303 C302 2 S D 7 7
3 S D 6 6
10K 1/16W 5% 0.1uF/16V 4 S D 5 5
R304 G D 4
R302 NC\AO4411 PANEL_VCC 3
Q301 2
4K7 1/16W 5% 47K 1/16W 5% AO3401 1
C303
NC
R301 C301 CONN
Q302 C304
2 PPWR_ON# 2N3906S-RTK/PS PANEL_VCC 330 OHM 1/4W 0.1uF/16V
NC
R305
0 OHM +-5% 1/8W
+ C305
3D
100uF25V
1 2
G S
AO3401L
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL NEW Q SERIES Size A
G2883-1-X-X-14-080526 TPV MODEL Rev F
Key Component 3.0.OUTPUT PCB NAME
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Date Monday , May 26, 2008 Sheet 3 of 6
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19" LCD Color Monitor Adelpia TGL198AW
CMVCC
VCC1.8
C710
0.1uF 16V
FB702
300 OHM
CN701 VCC3.3
C705 + C704
1 SM340A
2 D701 MVCC 0.1uF/16V 100uF25V
3 CMVCC Q702
4 CMVCC KN2907AS R705
5 BKLT-VBRI R709
6 BKLT-EN R710 NC NC 10K 1/16W 5%
7 PANEL_ID#
PANEL_ID# 2
8 Volume# Q703 R706
Volume# 2
9 Mute KN2907AS BKLT-VBRI
Mute 2 adj_BACKLIGHT 2
VCC3.3
NC/300 OHM R708 1K 1/16W 5%
FB704 3.3 OHM 2W
CONN C713 C701
lock type NC C712
FOR EMI
0.1uF/16V NC
R701
NC/0R05 1/4W
DGND 1,2,3
VCTRL
DVI_5V DSUB_5V
2
1
D702
VCC3.3 VCC3.3 D702 External EDID NC
BAT54C
MVCC_1 Internal EDID BAT54C
R702
3
10K 1/16W 5% R703
FB701
BKLT-EN 10K 1/16W 5% FB703 C711
300 OHM
C702 0.1uF 16V NC
MVCC VCC3.3
NC R704
U701
on_BACKLIGHT 2
3 2
Q701 4K7 1/16W 5% VIN VOUT
VSS
2N3904S-RTK/PS
C707
+ C706 C708 AP1117E33LA C709 +