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17" LCD Color Monitor Chassis: HUDSON 8
Service 170CW8FB/00
Service 170CW8FB/78
Service 170CW8FBJ/78
170CW8FB/93
170CW8FB/94
Description Page Description Page
Table Of Contents.....................................................1 6.1 Main Board....................................................20
Board....................................................21
Revision List................................................................2 6.2 Power Board.....................................................25
Board.....................................................26
Important Safety Notice.............................................3 6.3 Key Board.........................................................27
6.3 Key Board...................................................28
1. Monitor Specifications..............................................4 7. PCB Layout...........................................................28
Layout...........................................................29
2. LCD Monitor Description..........................................6 7.1 Main Board............................................................28
Board............................................................29
3. Operation instructions.............................................7 7.2 Power Board........................................................30
Board........................................................31
3.1General Instructions........................................7 7.3 Key Board.........................................................32
Board.........................................................33
3.2 Control buttons...............................................7 8. Wiring Diagram...................................................33
Diagram...................................................34
3.3 Adjusting the Picture...............................................9 9. Mechanical Instructions.........................................34
Instructions.........................................35
3.4 Connecting to the PC ........................................11 10.Trouble shooting..............................................40
shooting..............................................41
4. Input/Output Specification......................................12 11. Repair Flow Chart...............................................42
Chart...............................................43
4.1 Input Signal Connector.........................................12 12. ISP Instructions......................................................48
Instructions......................................................49
4.2 Factory Preset Display Modes...............................12 13. DDC Instructions...................................................52
Instructions...................................................53
4.3 Pixel Defect Policy..........................................13 14. White Balance, Luminance Adjustment..................57
Adjustment..................58
4.4 Failure Mode Of Panel ....................................16 15. Monitor Exploded View.........................................59
View.........................................60
5. Block Diagram.................................................17 16. Recommended & Spare Parts List............................61
Spare Parts List..................................................60
5.1 Software Flow Chart.............................................17 17. Different Parts List..............................................71
List..............................................72
5.2 Electrical Block Diagram....................................19 18. General Product Specification...............................72
Specification...............................73
6. Schematic Diagram.............................................21
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
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES
Published by Philips CE Copyright reserved Subject to modification K Aug, 22, 2007 GB 312278517380
2 HUDSON 8
Revision List
Version Release Date Revision History
A00 Aug.22, 2007 Initial release, Draft Version
A01 Sep.11,2007 Add new BOM in Item17
A02 Oct.15,2007 Add Philips 12NC for Model 170CW8FB/00
A03 Nov.02,2007 Update Model 170CW8FB/93 in Item 17
A04 Nov.09,2007 Add 12NC for Model 170CW8FB/93
A05 Nov.24,2007 Add 12NC for 715GT039 A
A06 Dec.24,2007 Change the material of bezel and rear cover.
A07 Jan.09,2008 Update Model 170CW8FB/93 in Item 17
A08 Mar.05,2008 Make some change in Item16 and Item17.
A09 Apr.02,2008 Add new BOM of 170CW8FB/94
Add 2nd BOM for 170CW8FB/00;
A10 Apr.09,2008
Add new BOM for 170CW8FB/78 and 170CW8FBJ/78
A11 Apr.29, 2008 Add a new panel 750GLH70GW112N for 170CW8FB/93
HUDSON 8 3
Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all Philips Company Equipment. The service
procedures recommended by Philips 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. Philips 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, Philips has
not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by Philips 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, Philips Company will be referred to as Philips.
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 Philips.
Philips 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.)
4 HUDSON 8
1. Monitor Specifications
HUDSON 8 5
6 HUDSON 8
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 of panel and the main board chips
each voltage.
Monitor Block Diagram
Flat Panel and
CCFL Drive.
CCFL backlight
Power board RS232 Connector
Main Board
(Include: adapter, inverter) For white balance
adjustment in factory
mode
Key Board
Video signal, DDC
AC-IN
HOST Computer
100V-240V
HUDSON 8 7
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 the front of the
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
Front View
8 HUDSON 8
Rear View
HUDSON 8 9
3.3 Adjusting the Picture
Description of the On Screen Display
When you press the button on the front control of your monitor, the On-Screen Display (OSD) Main Controls window will
pop up and you can then start making adjustments to your monitor's various features. Use the keys to make your
adjustments.
To Lock/Unlock OSD function (User Mode)
The OSD function can be locked by pressing "MENU" button for more than 10 seconds.
Locked OSD function can be released by pressing "MENU" button for more than 10 seconds again.
10 HUDSON 8
The OSD Tree
Below is an overall view of the structure of the On-Screen Display. You can use this as a reference when you want
to work your way around the different adjustments later on.
HUDSON 8 11
3.4 Connecting to the PC
1) Connect the power cord to the back of the monitor firmly.
2) Connect to PC
(a) Turn off your computer and unplug its power cable.
(b) Connect the monitor signal cable to the video connector on the back of your computer.
(c) Plug the power cord of your computer and your monitor into a nearby outlet.
(d) Turn on your computer and monitor. If the monitor displays an image, installation is complete.
12 HUDSON 8
4. Input/Output Specification
4.1 Input Signal Connector
Analog connectors
Pin No. Description Pin No. Description
1. Red video input 9. DDC +5V
2. Green video input 10. Logic Ground
3. Blue video input 11. Ground
4. Sense (GND) 12. Serial data line (SDA)
5. Cable detect (GND) 13. H. Sync/ H+ V. Sync
6. Red video ground 14. V. Sync
7. Green video ground 15. Data clock line (SCL)
8. Blue video ground
VGA connector layout
4.2 Factory Preset Display Modes
HUDSON 8 13
4.3 Pixel Defect Policy
14 HUDSON 8
HUDSON 8 15
16 HUDSON 8
4.4 Failure Mode Of Panel
Quick reference for failure mode of LCD panel
this page presents problems that could be made by LCD panel.
It is not necessary to repair circuit board. Simply follow the mechanical
Polarizer has bubbles
instruction on this manual to eliminate failure by replace LCD panel.
Failure description Phenomenon
Vertical block defect
Polarizer has bubbles
Vertical dim lines
Foreign material inside
polarizer. It shows liner or
dot shape.
Vertical lines defect
(Always bright or dark)
Concentric circle formed
Horizontal block defect
Bottom back light of LCD is
brighter than normal
Horizontal dim lines
Back light un-uniformity
Horizontal lines defect
(Always bright or dark)
Backlight has foreign material.
Black or white color, liner or
Has bright or dark pixel circular type
HUDSON 8 17
5. Block Diagram
5.1 Software Flow Chat
1
2 Y
3
N
4
5 N
Y
6
7 N
8
Y
9
10 N
11
Y
N N
12 13
Y Y
14 15 N
16
Y
17
N
18 19
Y
18 HUDSON 8
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.
18) Process the OSD display.
19) Read the keyboard. Is the power key pressed?
HUDSON 8 19
5.2 Electrical Block Diagram
5.2.1 Main Board
Key Board
LCD Interface
Control
(CN601)
(CN202)
MCU Scalar RTD2025L
RTD2120L-LF (Include ADC, OSD)
(U401) (U501)
RGB
RTD_H
RTD_V
DDC1_SCL,
DDC2_SDA
D-Sub
Crystal 24MHz Connector
(X401) (CN301)
20 HUDSON 8
5.2.2 Inverter/Power Board
AC input Bridge Rectifier
Rectifier Transformer diodes
EMI filter
and Filter
Start Circuit: R904, R932, R933
CN902
5V
Feedback
PWM Control IC
Circuit
IC901 12V
ON/OFF
Output Transformer MOSFET
Circuit
ON/OFF
Lamp Over Voltage Control
PWM
Control IC
DIM
Feedback IC801
Circuit
HUDSON 8 21
6. Schematic
6.1 Main Board
715G2498-1 AO
1 2 3 4 5 6 7 8
POWER
CN201
A A
1 CMVCC
2
3 CMVCC MVCC FB202
4 CMVCC
5 BKLT-VBRI
DIM# {4}
6 BKLT-EN NC CN201 A1
7 C_PANEL_INDEX CMVCC CN202
PANEL_ID# {4}
8 Volume# FB201 VCC3
Volume# {4} U201 D1
9 Mute
Mute {4} C201 E2
3 VIN VOUT 2
120 C202 B3
VSS
C203 B5
CONN C204 B4
C202 + C204 AP1117E33LA C205 + C203
100uF/25V C205 B5
100uF/25V
1
0.1uF/16V 0.1uF/16V C206 C4
C209 E2
Panel ID(3.3V PWM)
C210 E2
B FB201 A3 B
Back light FB202 A4
Dimming(3.3V PWM) Q202 C5
Q204 D6
VCC3 Q205 D6
R201 C5
R202 B5
R207 D6
R202 R208 D6
* BKLT-EN High ON(3.3V) 4K7 1/16W R210 D6
R213 D7
BKLT-EN R201
U201 A4
200 1/16W
ZD201 E2
ZD202 E1
C206 ZD203 E2
Q202
INV_ON# {4}
C 0.1uF/16V PMBS3904 C
VCC3
R207 R208
D 120R 1/16W 120R 1/16W D
CN202 Q204
PMBS3906
1 KEY0 R210 10K 1/16W
KEY0 {4} LED_R# {4}
2 KEY1
KEY1 {4}
3 POWER_KEY#
POWER_KEY# {4}
4 LED_G
5 LED_R LED_R
6 R213 10K 1/16W
LED_G# {4}
Q205
2
2
2
LED_G PMBS3906
CONN ZD202 C209 ZD203 C201 ZD201 C210
NC NC 0.1uF/16V
NC 0.1uF/16V 0.1uF/16V
1
1
1
E E
Near to Connect
1 2 3 4 5 6 7 8
22 HUDSON 8
1 2 3 4 5 6 7 8
INPUT DSUB_V {4}
R302 0R05 1/16W R301 100R 1/16W
RTD_H {5}
R303 100R 1/16W
RTD_V {5}
2
2
R304 R305 C302 C303
A ZD302 ZD303 2.2K 1/16W FB302 A
UDZS5.6B UDZS5.6B 2.2K 1/16W 22pF 22pF R306 100R 1/16W C304
CN301 A2
VGA_B+ 1 2 RTD_B+
RTD_B+ {5} C301 C7
BEAD
1
1
CN301 C302 A2
R311 100R 1/16W R307 C305 0.047uF C303 A3
16
DSUB_CONNECT {4} 5pF/50V C304 A7
10 75R 1/16W C305 A6
DDC1_SCL VGA_CON DSUB_5V R308 100R 1/16W C306
{4} DDC1_SCL 15 5 C306 A7
2
9 DSUB_5V VGA_B- RTD_B-
RTD_B- {5} C307 B7
DSUB_V 14 4 ZD305
2
8 VGA_B- C308 B6
DSUB_H 13 3 VGA_B+ ZD304 UDZS5.6B 0.047uF C309 B7
7 VGA_G- C310 C6
DDC1_SDA 12 2 VGA_G+ UDZS5.6B FB301
1
{4} DDC1_SDA C307 C311 C7
6 VGA_R- R309 100R 1/16W
C315 D3
2
2
11 1 VGA_R+ VGA_G+ 1 2 RTD_G+
1
RTD_G+ {5} D301 C1
BEAD
ZD301 ZD307 DB15 D302 C2
17
B UDZS5.6B UDZS5.6B R310 C308 0.047uF D303 C2 B
5pF/50V
FB301 B5
75R 1/16W
1
1
R312 100R 1/16W C309 FB302 A5
VGA_G- RTD_G- FB303 B5
RTD_G- {5}
R301 A2
R302 A2
0.047uF
R303 A2
FB303 R304 A2
R313 100R 1/16W C301 R305 A2
VGA_R+ 1 2 RTD_R+ R306 A6
RTD_R+ {5}
BEAD R307 A5
R308 A6
R314 C310 0.047uF
5pF/50V R309 B6
75R 1/16W R310 B5
R315 100R 1/16W C311 R311 A4
VGA_R- RTD_R- R312 B6
RTD_R- {5}
VGA_G+
VGA_R+
C R313 C6 C
3 VGA_B+
0.047uF R314 C5
R315 C6
ZD301 B1
3
3
D301 D302 D303 ZD302 A1
BAV99 BAV99 BAV99
ZD303 A1
ZD304 B3
CMVCC ZD305 A3
ZD307 B1
2
1
2
1
2
1
C315
0.1uF/16V
D D
E E
1 2 3 4 5 6 7 8
HUDSON 8 23
1 2 3 4 5 6 7 8
DSUB_5V CMVCC
CMVCC
D401
C402 D402 BAT54C(NC)
BAV70 2 1
NC Reserve for powerBoard MCU_VCC MCU_VCC C401 E3
A Q401 CMVCC=3V C404 C402 A1 A
PMBS3904
3
C403 D3
MCU_VCC_S
NC C404 A6
R405 R406 R407 C405 B3
R402 C412 U403 NC C406 B4
1K 1/16W
NC
NC
1 NC VCC 8 C409 C5
R403 1uF 10V 2 7
NC WC C410 D7
3.9K 1/16W 3 6 R408 WP
NC SCL NC C411 E4
4 VSS SDA 5
C412 A2
U402 3