Iiyama PLE385 User manual

PLE385Iiyama
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SERVICE MANUAL
PLE385 Monitor
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 OFTHIS INFORMATION AFTER THE DATE OF
PUBLICATION AND DISCLAIMS RELIABILITY FOR CHANGES, ERRORS OR OMISSIONS.
MANUFACTURE DATA ：MAR-11-2004

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Table of Contents
Table of Contents --------------------------------------------------------------------------------- 02
Revision List --------------------------------------------------------------------------------------- 04
1. Monitor Specification ------------------------------------------------------------------------- 04
2. LCD Monitor Description ---------------------------------------------------------------------05
3. Operation Instructions --------------------------------------------------------------------- 06
3.1 General Instructions ----------------------------------------------------------------------06
3.2 Control Button ----------------------------------------------------------------------------- 06
3.3 Adjusting The Picture ---------------------------------------------------------------------06
4. Input/Output Specification --------------------------------------------------------------------08
4.1 Input Signal Connector -------------------------------------------------------------------08
4.2 Factory Preset Display Modes ---------------------------------------------------------08
4.3 Power Supply Requirements -----------------------------------------------------------09
4.3.1 Feature ----------------------------------------------------------------------------------09
4.3.2 Ac Adapter Output -------------------------------------------------------------------09
4.3.3 Power Consumption ----------------------------------------------------------------- 09
4.4 Panel Specification (HS X84-C) --------------------------------------------------------10
4.4.1 Panel Feature -----------------------------------------------------------------------10
4.4.2 Display Characteristics -------------------------------------------------------------10
4.4.3 Back-light Unit -----------------------------------------------------------------------11
5. Block Diagram ----------------------------------------------------------------------------------12
5.1 Monitor Exploded View -------------------------------------------------------------------12
5.2 Software Flow Chart ----------------------------------------------------------------------13
5.3 Electrical Block Diagram -----------------------------------------------------------------16

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5.3.1 Scalar Board -------------------------------------------------------------------------16
5.3.2 Inverter Board ----------------------------------------------------------------------16
5.3.3 Adapter Board --------------------------------------------------------------------17
6. Schematic ---------------------------------------------------------------------------------------18
6.1 Main Board ---------------------------------------------------------------------------------18
6.2 Inverter Board -----------------------------------------------------------------------------22
6.3 Adapter ------------------------------------------------------------------------------------23
6.4 Key Pad Board ----------------------------------------------------------------------------23
7. PCB Layout -------------------------------------------------------------------------------------24
7.1 Main Board ---------------------------------------------------------------------------------24
7.2 Inverter Board -----------------------------------------------------------------------------25
7.3 Keypad Board -----------------------------------------------------------------------------25
8. Maintainability ----------------------------------------------------------------------------------26
8.1 Equipments and Tools Requirements -----------------------------------------------26
8.2 Trouble Shooting ------------------------------------------------------------------------27
8.2.1 Main Board ---------------------------------------------------------------------------27
8.2.2 Power/Inverter Board --------------------------------------------------------------30
8.2.3 Key Pad Board ----------------------------------------------------------------------31
9. White-Balance, Luminance Adjustment -------------------------------------------------32
10. EDID Content ---------------------------------------------------------------------------------33
11. BOM List ----------------------------------------------------------------------------------34~50

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Revision List
Revision Date Change Description
1. MONITOR SPECIFICATIONS
MACHANICAL CHARACTERISTICS Ta=25ºC
ITEM SPECIFICATION UNIT
LCD module size 331.6(W)×254.75(H)×13.55(T) mm
Resolution 1024×RGB(W)×768(H) pixel
Sub pixel pitch 0.099(W)×0.297(H) mm
Pixel pitch 0.297(W)×0.297(H) mm
Active viewing area 304.1(W)×228.1(H) mm
Bezel opening area 307.2(W)×231.1(H) mm
Weight 1220TYP g
MAXIMUM RATINGS Ta=25ºC
ITEM SYMBOL MIN MAX UNIT NOTE
Power supply voltage VDD-VSS -0.3 4 V
Input voltage V1 VSS-0.3 VDD+3 V
CFL lamp current IL –6.5 mA

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ENVIRONMENTAL ABSOLUTE MAXIMUM RATINGS Ta=25ºC
ITEM STMBOL CONDITIONS MIN MAX UNIT NOTE
TST Storage -20 60Ambient
temperature TOP Operation 0 50
ºC Note 1
Humidity –Ta=40ºC max –85 %RH
No Condensation
Note 2
Vibration –Storage –1.5 G Note 3
Shock –Storage –50 G
XYZ
11ms/direction
[Note 1] Care should be taken so that the LCD module may not be subjected to the temperature
beyond this specification.
[Note 2] Ta>40ºC: Absolute humidity shall be less than that of 85%RH/40ºC.
[Note 3] 10-200Hz, 30min/cycle, X/Y/Z each one cycle and except for resonant frequency.
2. LCD MONITOR DESCRIPTION
The LCD monitor will contain an main board, an inverter/power board, keypad board and external
adapter 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
Flat Panel and
CCFL backlight
Main Board
Keyboard
RS232 Connector
For white balance
adjustment in factory
mode
HOST Computer
CCFL Drive.
AC-IN
100V-240V
Video signal, DDC
Monitor Block Diagram
Adapter

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3. OPERATING INSTRUCTIONS
3.1 GENERAL INSTRUCTIONS
Press the power button to turn the monitor on or off. The other control buttons are located
at front panel of the monitor. 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 BUTTONS
3.2.1 KEY CONTROL
3.2.2 KEY FUNCTION
Hot keys Navigation Within OSD Without OSD
Menu MENU
Select Function or
select Sub menu
Activate OSD main menu
Left
Previous Item or
Decrease value
Brightness Hot key
Right
Next Item or Increase
value
Contrast Hot key
Exit / Auto AUTO Exit OSD or back to
previous menu
Auto configuration
3.3 ADJUSTING THE PICTURE

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OSD TABLE:
1. Contrast Adjust the picture contrast.
2.
Brightness Adjust the picture brightness.
3. Focus Adjust picture Focus.
4. Clock Adjust picture Clock.
5.
H-Position Adjust the horizontal position of the picture.
6. V-Position Adjust the vertical position of the picture.
7Language Multi-Language selection
8. Red Adjusts Red intensity.
9. Green Adjusts Green intensity.
10. Blue Adjusts Blue intensity.
11. C1 (Warm) Color Set the color temperature to warm white.
12. C2 (Cool) Color Set the color temperature to cool white.
13.
Reset
Clear each old status of Auto-configuration and re-do
auto-configuration .
14. Exit Save user adjustment and OSD disappear.

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4.INPUT/OUTPUT SPECIFICATION
4.1 INPUT SIGNAL CONNECTOR
PIN NO. DESCRIPTION PI N NO. DESCRIPTION
1. Red 9. +5V
2. Green 10. Detect Cable
3. Blue 11. NC
4. Ground 12. DDC-Serial Data
5. Ground 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
VGA connector layout
15
610
11 15
4.2 FACTORY PRESET DISPLAY MODE：
VESA MODES
Horizontal Vertical
Mode Resolution Total
Nominal
Frequency
+/- 0.5kHz
Sync
Polarity
Nominal
Freq.
+/- 1 Hz
Sync
Polarity
Nominal
Pixel
Clock(MHz)
640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175
640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500
VGA
640x480@75Hz 840 x 500 37.500 N 75.00 N 31.500
800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000
800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000
SVGA
800x600@75Hz 1056x625 46.875 P 75.000 P 49.500
1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000
1024x768@60Hz 1312x813 48.78 N 60.00 N 64.000
1024x768@70Hz 1328x806 56.476 N 70.069 N 75.000
1024x768@72Hz 1304x798 57.515 P 72.074 P 75.000
1024x768@75Hz 1328x804 60.200 N 74.90 N 80.000
XGA
1024x768@75Hz 1312x800 60.023 P 75.029 P 78.750

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IBM MODES
Horizontal Vertical
Mode Resolution Total
Nominal
Frequency
+/- 0.5kHz
Sync
Polarity
Nominal
Freq.
+/- 1 Hz
Sync
Polarity
Nominal
Pixel/Clock
(MHz)
DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322
DOS 640x350@70Hz 800 x 449 31.469 N 70.087 P 25.175
MAC MODES
VGA 640x480@67Hz 864x525 35.000 N 66.667 N 30.240
SVGA 832x624@75Hz 1152x667 49.725 N 74.551 N 57.2832
NOTE: All modes will automatically optimize the screen size with “ Auto-Config “ function, except 3
Dos-Modes : 720 x 400@70hz, 640x350@70hz ,640x400@70hz
4.3 Power Supply Requirements
The power supply should be external AC-adapter
4.3.1 FEATURES
PARAMETER RANGE CONDITION
The power supply
should be external
AC- adapter
100Vac~264Vac 50 ±3Hz, 60 ±3Hz
Current 1.5Arms at 100Vac
0.75Arms at 240 Vac
0.6A max. at 100V , 0.35A max. at 240 V
<0.3A
Peak surge current 30A peak at 110Vac
60A peak at 240Vac
< 55A peak at 240 VAC and cold starting
Leakage current 0.75mA max. at
240Vac/60Hz
< 3.5mA
Power line surge 2.0kV, a cycle/30sec,
total 30 times
No advance effects (no loss of
information or defect) with a maximum of
1 half-wave missing per second
4.3.2 AC ADAPTER OUTPUT
PARAMETER RANGE CONDITION
Voltage 11.4V~12.6V 12VDC ± 5 %
Current 0~3.5Arms 4Amp max
4.3.3 POWER CONSUMPTION
The monitor is equipped with a power-management according to NUTEK (power consumption)
and is VESA DPMS compliant.
There is a delay of 5s…7s before the transition from On-state to any power saving state to any
power saving state to avoid unintentionally entering of a power saving stage during display resolution
and timing mode changes. Transition from any power saving state to another can be instantaneous.

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The recovery from Off-state requires no manual power on.
Mode H-Sync V-Sync. Video Pw-cons. Indicator Rec. time
Power-On on On active < 35 w Green LED --
Power-off off Off blanked < 3w Orange LED < 5s
on Off blanked < 3W Orange LED < 5s
off On blanked < 3W Orange LED < 5s
SYNC. On means: Normal operation.
SYNC. Off means: H sync. F<10KHz duty cycle>25%
V sync. F<10Hz duty cycle>25%
4.4 PANEL SPECIFICATION (HS X84-C)
4.4.1Geneal Feature
ITEM SPECIFICATIONS
Outline Dimension 321.0(H) x 249.0(V) x 10.5(D)mm (Typ.)
Display area 304.1(H) x 228.1(V) (15.0” diagonal)
Number of Pixel 1024(H) x 768(V)
Pixel Pitch 0.297mm x 0.297mm
Pixel arrangement RGB Vertical stripe
Display color 6-bit driver
Display mode Normally white
Surface treatment Antiglare, Hard-Coating(3H)
Weight 950g(Typ.)
Back-light 2-CCFLs, Top & bottom edge side
Input signal Source and Gate Driver control signals
Power consumption 11.0(Typ.)
Optimum viewing direction 6 o’clock