Iiyama PLE1902S User manual

19" LCD Color Monitor Iiyama PLE1902S
1
Service
Service
Service
HorizontalFrequency
24-80kHz
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....................................…...........5
3.1. General Instructions...........................…...........5
3.2. Control Button…………………………….…...............5
3.3 Adjusting the Picture...........................…............6
4. Input/Output Specification............……………............12
4.1. Input Signal Connector............………….................12
4.2. Factory Preset Display Modes......…..................13
4.3. Panel Specification.....………………..................14
5. Block Diagram…........................................................16
5.1 Software Flow Chart………………………….……….16
5.2. Electrical Block Dia
g
ram…………………..…….......18
6. Schematic……………......................................19
6.1 Main Board....……….......................................19
6.2 Power Board………………………………………....24
6.3 Key Board………………….……………………27
7. PCB Layout..………….......................................28
7.1.Main Board………........................................28
7.2.Power Board….......................................30
7.3. Key Board….........................................................31
8. Maintainability……….......................................32
8.1.Equipments and Tools Requirement......................32
8.2.Trouble Shooting………........................................33
9. White-Balance, Luminance adjustment………….....39
10.Monitor Exploded View……..……………….….......41
11.BOM List…...........................................................42
12.Different Parts List……………………………………56
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

19" LCD Color Monitor Iiyama PLE1902S
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Revision List
Version Date Revision History TPV Model Name
A00 May.-29-07 Initial release T97HMJDBHFYCDN
T97HMJDBHFYDDN
T97HMJDJHFY2DN
T97HMJDBHFY1DN
T97HMJDBHFY2DN
T97SMJDJHFY1DN
A01 Jun.-13-2007 Add new model
T97HMJDJHFY1DN
T97HMJDBHFY3DN
A02 Jul.-31-2007 Add new model
T97HMJDBHFY4DN
A03 Nov.-06-2007 Add mew model T97HMJDBHFY9DN
A04 Jan.-03-2008 Add mew model T97HMJDBHFYADN

19" LCD Color Monitor Iiyama PLE1902S
3
1. Monitor Specification

19" LCD Color Monitor Iiyama PLE1902S
4
2. LCD Monitor Description
The LCD Monitor will contain main board, power board, 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 ada
p
ter and inverter
)
Flat Panel and
CCFL backlight
Main Board RS232 Connector
For white balance
adjustment in
factory mode
HOST Computer
CCFT Drive.
AC-IN
100V
Monitor Block Diagram
Key board

19" LCD Color Monitor Iiyama PLE1902S
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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 at front of the panel. By
changing these settings, the picture can be adjusted to your personal performance.
-The power cord should be connected.
-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.
3.2 Control Buttons

19" LCD Color Monitor Iiyama PLE1902S
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3.3 Adjust the Picture

19" LCD Color Monitor Iiyama PLE1902S
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19" LCD Color Monitor Iiyama PLE1902S
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19" LCD Color Monitor Iiyama PLE1902S
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19" LCD Color Monitor Iiyama PLE1902S
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19" LCD Color Monitor Iiyama PLE1902S
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19" LCD Color Monitor Iiyama PLE1902S
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4. Input/Output Specification
4.1 Input Signal Connector
Pin Signal Pin Signal
1 Red Video 9 NC
2 Green Video 10 Ground
3 Blue Video 11 Reserved port
4 Reserved port 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 Signal Pin Signal Pin Signal
1 TMDS Data 2- 9 TMDS Data 1- 17 TMDS Data 0 -
2 TMDS Data 2+ 10 TMDS Data 1+ 18 TMDS Data 0 +
3 TMDS Data 2 ground 11 TMD Data 1/3 Shield 19 TMDS Data 0 Ground
4 NC 12 NC 20 NC
5 NC 13 NC 21 NC
6 DDC Clock 14 NC 22 TMDS Clock Ground
7 DDC Data 15 Ground 23 TMDS Clock +
8 N.C. 16 Hot Plug Detect 24 TMDS Clock -

19" LCD Color Monitor Iiyama PLE1902S
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4.2 Factory Preset Display Modes

19" LCD Color Monitor Iiyama PLE1902S
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4.3. Panel Specification
4.3.1 General Feature
4.3.2 Optical Characteristics

19" LCD Color Monitor Iiyama PLE1902S
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4.3.3 Electrical Characteristics
TFT Module
Back-light

19" LCD Color Monitor Iiyama PLE1902S
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5. Block Diagram
5.1 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

19" LCD Color Monitor Iiyama PLE1902S
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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?

19" LCD Color Monitor Iiyama PLE1902S
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5.2 Electrical Block Diagram
Main Board
EEPROM
SST25VF010A
(U402)
Scalar IC TSUMO5PWHJ-LF
(Include ADC, OSD, MCU)
(U401)
EEPROM
AF24BC02-S1
(U405)
RGB
CLK+
CLK-
SDA
SCL
LCD Interface
(CN101)
DVI
Connector
(CN406)
EEPROM
M24C04-WMN6TP
(U403)
D-Sub
Connector
(CN405)
EPR_SDA
EPR_SCL
H sync
V sync
RGB
EEPROM
AF24BC02-S1
(U404)
DB15_SDA
DB15_SCL
Crystal 14.31818MHz
(X401)

19" LCD Color Monitor Iiyama PLE1902S
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6. Schematic
6.1 Main Board
+5V
LVDS OUTPUT
B2
2.POWER
on_Panel
on_BACKLIGHT
Adj_BACKLIGHT
VCC1.8
VLCD
+5V
VCC3.3
MU TE
VOL
IDX
VLCD
B5
5.PANEL INTERFACE
PB[0..9]
PA[0..9]
VLCD
PA[0..9]
B3
3.INPUT
RIN
GIN
BIN
VSY NC
GNDR
GNDG
GNDB
HSYNC
SOG
B+
CLK-
DET_INPUT
CLK+
R+
G+
R-
B-
G-
DDCA_SDA
DDCA_SCL
DDCD_SDA
DDCD_SCL
DDC_WP
+5V
HDCP_RST
VLCD
G2573-F-X-X-6-070521
E
1-2. TOP
Custom
25Monday , May 21, 2007
Title
Size Document Number Rev
Date: Sheet of
+5V
VCC1.8
VCC1.8
VCC3.3
PB[0..9]
VCC3.3
+5V
B4
4.SCALER
RIN
GIN
SOG
BIN
GNDR
GNDG
GNDB
HSYNC
VSY NC
Adj_BACKLIGHT
VCC1.8
Vcc3.3
R+
R-
G-
G+
B+
B-
CLK+
CLK-
DDCD_SDA
DDCD_SCL
DET_INPUT
DDCA_SDA
DDCA_SCL
on_BACKLIGHT
on_Panel
+5V
DDC_WP
PA[0..9]
PB[0..9]
HDCP_RST
MUTE
VOL
IDX
TSUMU58J SCHEMATIC

19" LCD Color Monitor Iiyama PLE1902S
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R736
NC
G2573-F-X-X-6-070521
C709
0.1uF 16V
IDX 4
C708
NC
+3V3
+5V
VCC1.8
+3V3
R709
0R05 1/16W
+3V3
PANEL_ID
C714
0.1uF 16V
VLCD
on_Panel4
+3V3
C724
0.1uF 16V
Adj_BACKLIGHT 4
C718
NC
R705
100R 1/16W
VCC3.3 4
+5V3,4
R725 4K7 1/16W
Q703
PMBS3904
CN701
CONN
1
2
3
4
5
6
7
8
9
R710 NC
U702
NC/AP1117D33LA
1 2 3
ADJ(GND) VOUT VIN
R717
10K 1/16W
VLCD 5
+5V
R711
10K 1/16W
DIM
Q704
AO3401
D703
SR24
on_BACKLIGHT 4
VOL 4
R714
10K 1/16W
R712
4K7 1/16W
FB406
NC
R723
10K 1/16W
ON/OFF
R708
10K 1/16W
U701
AIC1084-18PM
23
1
OUTIN
GND
D704
SM340A
+5V
VCC3.3
C713
0.1uF 16V
+
C702
220uF/25V
R727
10K 1/16W
C711
0.1uF 16V
C715
NC
Q707
PMBS3904
U703
AP1117E33LA
1
23
VSS
VOUTVIN
C725
0.1uF 16V
R707
4K7 1/16W
U704
NC/AP1117E18LA
3 2
1
VI VO
GND
+5V
+
C710
100uF/25V
+ C712
10uF/50V
VCC1.8 4
MUTE 4
Q706
PMBS3904
+5V
C719
1uF 10V
R701
1K 1/16W
R706 NC
Q701
PMBS3904
R735
NC
--- Modify C719 1 uF / 65G0402105 A5 /CAP 0402 1UF K 10V X5R
--- Modify U701 / 56G 563 34 ( IC AIC1084-18PMTR-R TO-263 )
--- Modify C702/220UF 25V 8*11.5mm
--- Delete Q705
--- ADD Q707
E
2-1. POWER
Custom
35Monday , May 21, 2007
Title
Size Document Number Rev
Date: Sheet of
+
C717
10uF/50V