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HQ171D
Service Manual
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HannStar HQ171D, HSG1033 Service Manual

H a n n S t a r D i s p l a y C o r p .
Document Title HQ171D_XY _HSM Page No.
Document No.
Service Manual
Revision
1 1 / 87
07/08/09
Model Name:HQ171D
Model No:HSG1033
17” Color TFT LCD Display
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The information contained in this document is the exclusive property of HannStar Display Corporation. It shall not be
H a n n S t a r D i s p l a y C o r p .
Document Title HQ171D_XY _HSM Page No.
Document No.
Copyright Copyright © 2006 by HannStar Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of HannStar Corporation. Disclaimer HannStar makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further, HannStar reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of HannStar to notify any person of such revision or changes. Trademarks Opt quest is a registered trademark of HannStar Corporation. HannStar is a registered trademark of HannStar Corporation. All other trademarks used within this document are the property of their respective owners.
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Revision History
Revision SM Editing Date ECR Number Description of Changes TPV Model
A00 Jan.-17-06 First Version Release T76CM6NTC9ZHAP
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T76CM6NBC9HZAN
A01 Aug.-08-07
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Add TPV Model in item14
T76CM6NBC9ZHAN
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TABLE OF CONTENTS
1. Dimensions 4
2. Precautions and Safety Notice 6
3.Monitor Specification 7
4.LCD Monitor Description 8
5.Operation Instruction 9
6. Input/output Specification 16
7. Mechanical Instructions 21
8. Block Diagram 25
9.Schematic 31
10.PCB Layout 39
11. Maintainability 45
12 DDC Instruction 51
13. White-Balance, Luminance adjustment 67
14.Monitor Exploded View 69
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15. BOM List 70
16. Different Parts List 82
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Document Title HQ171D_XY _HSM Page No.
Document No.
Revision
1. Dimensions
1.1 Front View
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1.2 Top View
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1.3 Back View
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1.4 Rear View
1.4 Bottom View
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2. Precautions and Safety Notices
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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3. Monitor Specifications
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4. LCD Monitor Description
Assembly Description
The LCD MONITOR will contain a main board, a power board, an audio 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 of panel and the main board chips each
voltage.
CCFL Drive.
Power board
(Include: adapter, inverter)
Monitor Block Diagram
Flat Panel and
CCFL backlight
main board
RS232 Connector
For white balance
adjustment in factory
mode
AC-IN
100V-240V
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Audio board
Key board
Video signal, DDC
HOST Computer
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Document Title HQ171D_XY _HSM Page No.
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5. Operating Instructions
5.1 General Instructions
Press the power button to turn the monitor on or off. The control buttons are located in the front 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.
-
5.2 Control Buttons
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FRONT PANEL CONTROL
• Power Button:
Press this button to switch ON/OFF of monitor’s power.
• Power Indicator:
Green — Power On mode.
Orange — Power Saving mode.
• MENU / ENTER:
Activates the OSD menu or confirms adjustments to settings.
• Adjust < >:
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Navigate through adjustment icons when OSD is ON or adjust a function when function is activated.
• AUTO Button: (for D-sub only)
When OSD menu is in off status, press and hold this button for more than two seconds to activate the Auto Adjustment
function.
(The Auto Adjustment function is used to optimized the H-Position, V-Position, Clock and Phase.)
NOTES:
• Do not install the monitor in a location near heat sources such as radiators or air dusts, or in a place subject to direct
sunlight, or excessive dust or mechanical vibration or shock.
• Save the original shipping box and packing materials, as they will come in handy if you ever have to ship your monitor.
• For maximum protection, repackage your monitor as it was originally packed at the factory.
• To keep the monitor looking new, periodically clean it with a soft cloth. Stubborn stains may be removed with a cloth
lightly dampened with a mild detergent solution. Never use strong solvents such as thinner, benzene, or abrasive
cleaners, since these will damage the cabinet. As a safety precaution, always unplug the monitor before cleaning it.
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• Function Key Lock:
Press the 「<」, 「>」 and the 「Menu」 buttons simultaneously to enable the Function Key Lock. When the Function Key Lock is enabled, only the Power button is active. Press the 「<, 「>」 and the 「Menu」buttons simultaneously again to
unlock the function keys.
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5.3 Adjusting the Picture
Adjustment steps:
1. Press the MENU-button to activate the OSD window.
2. Press < or > to select the desired function.
3. Press the MENU-button to select the function that you want to adjust.
4. Press < or > to change the settings of the current function.
5. To exit and save, select the exit function, or leave the monitor alone for 10 seconds. If you want to adjust any other
function, repeat steps 2-4.
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Document No.
Revision
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07/08/09
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The information contained in this document is the exclusive property of HannStar Display Corporation. It shall not be
H a n n S t a r D i s p l a y C o r p .
Document Title HQ171D_XY _HSM Page No.
Document No.
Revision
13 13 / 87
07/08/09
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The information contained in this document is the exclusive property of HannStar Display Corporation. It shall not be
H a n n S t a r D i s p l a y C o r p .
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Document No.
Revision
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07/08/09
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The information contained in this document is the exclusive property of HannStar Display Corporation. It shall not be
H a n n S t a r D i s p l a y C o r p .
Document Title HQ171D_XY _HSM Page No.
Document No.
Revision
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07/08/09
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H a n n S t a r D i s p l a y C o r p .
Document Title HQ171D_XY _HSM Page No.
Document No.
Revision
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6. Input/output Specification
6.1 Input Signal Connector
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6.2 Factory Preset Display Modes
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6.3 Panel Specification
CLAA170EA07P is 17.0” color TFT-LCD (Thin Film Transistor Liquid Crystal Display) module composed of LCD panel,
driver ICs, control circuit and backlight. By applying 8 bit digital data,1280×1024, 16.2M-color images are displayed on the
17.0” diagonal screen. Input power voltage is 5.0V for LCD driving.Inverter for backlight is not included in this module.
6.3.2 Display Characteristics
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6.3.3 Electrical Characteristics
1. TFT LCD Module
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2.Back Light Unit:
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6.3.4 Optical Characteristics
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6.4 EDID data
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
0
0 FF FF FF FF FF FF 0 22 64 11 0 9 9 0 0
16
2A 10 1 3 80 22 1B 78 EA E5 E5 A4 56 44 9F 23
32
15 50 54 BF EF 80 81 80 81 C0 81 40 71 4F 61 46
48
64
80
96
112
Analog EDID
1 1 1 1 1 1 30 2A 0 98 51 0 2A 40 30 70
13 0 52 0E 11 0 0 1E 0 0 0 FD 0 38 4B 1E
50 0E 0 0A 20 20 20 20 20 20 0 0 0 FF 0 32
31 33 32 31 33 32 33 31 32 33 31 33 0 0 0 FC
0 48 61 6E 6E 73 2E 47 20 48 51 31 37 31 0 E5
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DVI EDID
16
32
48
64
80
96
112
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
0
0 FF FF FF FF FF FF 0 22 64 11 0 9 9 0 0
2A 10 1 3 0A 22 1B 78 EA E5 E5 A4 56 44 9F 23
15 50 54 BF EF 80 81 80 81 C0 81 40 71 4F 61 46
1 1 1 1 1 1 30 2A 0 98 51 0 2A 40 30 70
13 0 52 0E 11 0 0 1E 0 0 0 FD 0 38 4B 1E
50 0E 0 0A 20 20 20 20 20 20 0 0 0 FF 0 33
32 31 32 33 31 32 33 31 32 33 31 33 0 0 0 FC
0 48 61 6E 6E 73 2E 47 20 48 51 31 37 31 0 5B
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7. Mechanical Instructions
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Step Figure
Preparat
ion
Descripti
on
Lay the
LCD on a
flat, soft
and clean
surface.
Remove
the base
Remove
the
screws
remarked
in red
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Document Title HQ171D_XY _HSM Page No.
Document No.
Remove
rear
cover
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Remove
the
screws
remarked
in red
Remove
the
shield
Remove
the
screws
remarked
in red
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Document No.
Revision
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Remove
the
screws
remarked
in red and
disconne
cted the
connecter
remarked
in red
remove
the
boards
Remove
the
screws
remarked
in red
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Document Title HQ171D_XY _HSM Page No.
Document No.
Remove
the
shield
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Remove
the
screws
remarke
d in red
The end
The panel
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Revision
8. Block Diagram
8.1 Software Flow Chat
1
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2
4
5
6
7
N
Y
Y
Y
N
N
3
9
10
Y
N
12
N
11
13
N
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18
N
Y
14
19
15
17
Y
Y
N
16
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Y
H a n n S t a r D i s p l a y C o r p .
Document Title HQ171D_XY _HSM Page No.
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1) MCU initialize.
2) Is the EPROM blank?
3) Program the EPROM by default values.
4) Get the PWM value of brightness from EPROM.
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 EPROM.
Turn on the LED and set it to green color.
Scalar initializes.
10) In standby mode?
11) Update the lifetime 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
disappear.
17) Program the scalar to be able to show the coming mode.
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