Add CTV Model 220VW9FB/00, 220VW9FB/05,220VW9FB/27,
220VW9FB/62 in Item18
A01 Apr.16, 2008
A02 Apr.25, 2008 Add CTV Model 220VW9FB/93 and 220VW9FB/75 in Item18
A03 Apr.30, 2008 Add CTV Model 220VW9FB/94 in Item18
Add CTV Model 220VW9FB/97 in Item17
Add Philips 12NC for 220VW9FB/97
A04 May.07, 2008
A05 May.15, 2008
Perfect Philips 12NC for 220VW9FB/75 and 220VW9FB/93
Add a new power cord 089G404A15N YH for 220VW9FB/97
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HUDSON 9
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
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may damage the panel.)
4
1. Monitor Specifications
HUDSON 9
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(
6
HUDSON 9
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.
Power board
Include: adapter, inverter)
AC-IN
100V-240V
Monitor Block Diagram
CCFL Drive.
Key Board
Flat Panel and
CCFL backlight
Main Board
HOST Computer
RS232 Connector
For white balance
adjustment in factory
mode
Video signal, DDC
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HUDSON 9
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
7
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8
Rear View
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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
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9
window will pop up and you can then start making adjustments to your monitor's various features. Use the
make your adjustments.
keys to
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.
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10
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 9
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3.4 Connecting to the PC
1) Connect the power cord to the back of the monitor firmly.
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11
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.
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7
. Green video g
round 15
8
und
. Blue video gro
4.2 Factory Preset Display Modes
. Data clock line (SCL)
VGA connector layout
12
4. Input/ Output Specification
4.1 Input Signal Connector
Analog connectors
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Pin No. Description Pin No. Description
1. Red video input 9. +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
6. Red video ground 14. V. Sync
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4.3 Pixel Defect Policy
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14
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15
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g
g
g
g
g
16
HUDSON 9
4.4 Failure Mode Of Panel
Quick reference for failure mode of LCD panel
this pa
e presents problems that could be made by LCD panel.
It is not necessary to repair circuit board. Simply follow the mechanical
instruction on this manual to eliminate failure by replace LC D panel.
Polarizer has bubbles
Failure description
Vertical block defect
Vertical dim lines
Vertical lines defect
(Always bri
Horizontal block defect
ht or dark)
Phenomenon
Polarizer has bubbles
Foreign material inside
polarizer. It shows liner or
dot shape.
Concentric circle formed
Horizontal dim lines
Horizontal lines defect
(Always bri
Has bri
ht or dark)
ht or dark pixel
Bottom back light of LCD is
brighter than normal
Back light un-uniformity
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ht has foreign material.
Backli
Black or white color, liner or
circular type
5. Block Diagram
5.1 Software Flow Chat
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1
17
2
N
4
5
Y
6
7
Y
Y
N
N
3
9
10
Y
N
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18
N
12
Y
14
19
N
13
15
11
17
N
Y
N
Y
16
Y
18
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?
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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?
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5.2 Electrical Block Diagram
5.2.1 Main Board
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Keypad Interface
(CN401)
Flash Memory
SST25VF010A-33-4C-SAE
(U402)
Panel Interface
(CN403)
Scalar TSUMU18ER-LF
(Include MCU, ADC, OSD)
Crystal
14.31818MHZ
(X401)
(U401)
Connector
H sync
V sync
D-Sub
(CN101)
RGB
EEPROM
M24C16
(U403)
VGA_SDA,
VGA_SCL
VGA_R+,
VGA_G+,
VGA_B+
EEPROM
AZC099-04S
(U103)
EEPROM
AZC099-04S
(U102)
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20
5.2.2 Inverter/Power Board
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AC input
EMI filter
Start Circuit: R904、R905、R906
Bridge
Rectifier
and Filter
PWM
Control IC
Transformer
Rectifier
diodes
Feedback
Circuit
5V
16V
Lamp
Output
Circuit
Transformer
MOSFET
ON/OFF
Feedback
Circuit
Over
Voltage
PWM
Control IC
ON/OFF
Control
DIM
DIM
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6. Schematic
6.1 Main Board
715G2904-1-5
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5
TOP
4
3
2
1
TSUM16FWR SCHEMATIC
DD
XGA/SXGA
LVDS OUTPUT
21
DSUB_R+
DSUB_RDSUB_G+
DSUB_G-
DSUB_SOG
DSUB_5V
CMVCC1
VCC3.3
CC
DSUB_5V
CMVCC1
VCC3.3
DSUB_B+
DSUB_B-
DSUB_H
DSUB_V
DDC1_SDA
DDC1_SCL
DET_CABLE
DSUB_R+
DSUB_RDSUB_G+
DSUB_G-
DSUB_SOG
DSUB_B+
DSUB_BDSUB_H
DSUB_V
DDC1_SDA
DDC1_SCL
DET_CABLE
VCC1.8
VCC3.3
CMVCC
CMVCC1
VCC1.8
VCC3.3
CMVCC
CMVCC1
02.Input
VCC1.8
VCC3.3
DSUB_5V
BB
AA
CMVCC
CMVCC1
VCC1.8
VCC3.3
CMVCC
CMVCC1
05.Power
on_BACKLIGHT
Mute
Volume#
PANEL_ID#DSUB_5V
Adj_BACKLIGHT
VCTRL
on_BACKLIGHT
Mute
Volume#
PANEL_ID#
Adj_BACKLIGHT
VCTRL
03.Scalar
PA[0..1]
PA[4..9]
PB[0..9]
PPWR_ON#
PA[0..1]
PA[4..9]
PB[0..9]
PA[0..1]
PA[4..9]
PB[0..9]
PPWR_ON#
04.Output
CMVCC
CMVCC
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5
4
3
2
1
22
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INPUT
H_Sync
V_Sync
H_Sync
V_Sync
15
14
13
12
11
ESD_VCC
DD
VCC3.3
R120
GND POWER
DSUB_SDA
DSUB_SCL
R121
10K 1/16W 5%
R110
100R 1/16W 5%
R113
100R 1/16W 5%
DGND
U103
1
I/O1
I/O4
2
GND
VDD
34
I/O2 I/O3
AZC099-04S
DSUB_SCLVGA_PLUG
Connect Pin4 and Pin11 of CN101 to
GND to prevent ESD issue.
<---Vendor/Product Identification--->
ID Manufacturer Name: PHL
ID Product Code: C022
ID Serial Number: f8c30400
Week of Manufacture: 21
Year of Manufacture: 2003
<-x-Vendor/Product Identification-x->
<---Basic Display Parameters/Features--->
Video i/p definition: Analog
Signal Level Standard: 0.700V/0.300V(1.000Vpp)
Setup: Blank-to-Black not expected
Separate Sync Support: Yes
Composite Sync Support: Yes
Sync. on green video supported:Yes
Serration of the Vsync.Pulse is not required.
Max. H. Image Size : 46cm.
Max. V. Image Size : 30cm.
Display Gamma: 2.2
DPMS Features, Stand-by: No.
DPMS Features, Suspend: No.
DPMS Features, Active off: Ye s.
Display Type: R.G.B color display.
Standard Default Color Space: R.G.B color.
Preferred Timing Mode: In First Detailed Timing.
GTF supported: No.
<---Basic Display Parameters/Features--->
<---Color Characteristics--->
Red x: 0.6425781250
Red y: 0.3320312500
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Green x: 0.2890625000
Green y: 0.6103515625
Blue x: 0.1435546875
Blue y: 0.0781250000
White x: 0.3125000000
White y: 0.3291015625
<-x-Color Characteristics-x->
<---Established Timings--->
Established Timings 1: BF
-720x400 @70Hz VGA,IBM
-640x480 @60Hz VGA,IBM
-640x480 @67Hz Apple,Mac II
-640x480 @72Hz VESA
-640x480 @75Hz VESA
-800x600 @56Hz VESA
-800x600 @60Hz VESA
Established Timings 2: EF
-800x600 @72Hz VESA
-800x600 @75Hz VESA
-832x624 @75Hz Apple,Mac II
-1024x768 @60Hz VESA
-1024x768 @70Hz VESA
-1024x768 @75Hz VESA
-1280x1024 @75Hz VESA
Established Timings 3: 80
-1152x870 @75Hz Apple,Mac II
<-x-Established Timings-x->
1 User visible strings on .inf file Philips 220VW (22inch Wide LCD MONITOR 220VW9)
2 Manufacturer ID ( EDID data) PHL
3 Product ID, "xxxx" 4 codes MSB(byte 12): C0
LSB (byte 11): 22
4 maximum resolution 1680x1050
5 Horizontal Frequency Range 30~83 KHz
6 Vertical Frequency Range 56~76Hz
7 Monitor Name (13 characteries max.) Philips 220VW
4. Visual characteristics
4.1 Test conditions
Unless otherwise specified, this specification is defined under the following conditions.
(1) Input signal : As defined in 3.3, 1680 x 1050
non-interlaced mode (1680X1050@60Hz 146.25MHz), signal
sources must have 75 ohm output impedance.
(2) Luminance setting : controls to be set to 300 nits (typical) with
full screen 100 % duty cycle white signal
(3) Warm up: more than 30 minutes after power on with signal supplied.
(4) Ambient light: 400 -- 600 lux.
(5) Ambient temperature: 20 ± 5 °C
4.2 Brightness
To follow Panel specification.
sRGB = 80 ± 10 nits (suppliers to input)
4.3 Image size
Actual display size 464.94 mm x 290.5875 mm
4.4 Brightness uniformity
Set contrast at 100% and turn the brightness to get average above 300 nits at centre of the screen.
Apply the Fig 1, it should comply with the following formula:
B_max
Where B_max =Maximum brightness, B_min = Minimum brightness
4.5 Check Cross talk (S)
B_min
X 100% >75% (Follow panel spec.)
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Apply Pattern 2. Set contrast and brightness at 100 %.
Measure YA. Then output Pattern 3 and measure YB.
the cross talk value :
ABS ( YA - YB )
⎯⎯⎯⎯⎯⎯⎯⎯⎯ X 100% < 1.5 %
YA
4.6 White color adjustment
There are seven factory preset white color 11500K, 9300K, 8200K, 7500K, 6500K, sRGB, 5000K
Apply full gray64 pattern, with brightness in 100 % position and the contrast control at 50 % position.
The 1931 CIE Chromaticity (color triangle) diagram (x , y) coordinate for the screen center should be:
Product specification
CIE coordinates (x,y)
11500K
9300K
8200K
7500K
6500K/sRGB
sRGB
5000K
x = 0.270 ± 0.02
y = 0.281 ± 0.02
x = 0.283 ± 0.02
y = 0.297 ± 0.02
x = 0.291 ± 0.02
y = 0.306 ± 0.02
x = 0.298 ± 0.02
y = 0.314 ± 0.02
x = 0.313 ± 0.02
y = 0.329 ± 0.02
x = 0.313 ± 0.02
y = 0.329 ± 0.02
x = 0.345 ± 0.02
y = 0.357 ± 0.02
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Production alignment spec.
CIE coordinates (x,y)
11500K
9300K
8200K
7500K
6500K/sRGB
sRGB
5000K
4.7 Out of box settings
Resolution Notification default set to OFF in 200PW8 model.
Quality Inspection specification:
CIE coordinates (x,y)
9300K
6500K/sRGB
sRGB
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x = 0.270 ± 0.005
y = 0.281 ± 0.005
x = 0.283 ± 0.005
y = 0.297 ± 0.005
x = 0.291 ± 0.005
y = 0.306 ± 0.005
x = 0.298 ± 0.005
y = 0.314 ± 0.005
x = 0.313 ± 0.005
y = 0.329 ± 0.005
x = 0.313 ± 0.005
y = 0.329 ± 0.005
x = 0.345 ± 0.005
y = 0.357 ± 0.005
x = 0.283 ± 0.015
y = 0.297 ± 0.015
x = 0.313 ± 0.015
y = 0.329 ± 0.015
x = 0.313 ± 0.015
y = 0.329 ± 0.015
5. Mechanical characteristics
5.1 Cosmetic - Philips ID
5.2 Mechanical data files - ProE files required
5.3 Location of Philips logo - Per Philips make-up sheet
5.4 Gap between panel and front bezel < 1.4mm (typ)
5.5 Location of Control icons - Per Philips Graphic sheet
82
5.6 Color for resin/paint - Per Philips make-up sheet
5.7 Resins
z RoHS required
z WEEE required.
z Resin type/selection refer to Project Book Section 7.2 Plastic material.
5.8 If paint is used
z RoHS required
z WEEE require
z If new painting type need to implement, refer to UN-D 1235.
5.9 Plastic mold tooling
z Tooling to be designed to minimize cosmetic defects induced by molding process (sink, blush, weld lines,
z Painting to cover up cosmetic defects due to molding is strongly discouraged.
z China RoHS mark requested
5.10 Plastics flammability
z Bezel/Rear cover to be Flame Retardant UL 94-HB.
HUDSON 9
gate marks, ejector marks, etc.). Refer to “TYV61-90007”.
z Base / Pedestal to be Flame Retardant UL 94-HB.
z All major plastic parts (bezel, back cover) need to be molded from same resin.
z Plastic resin type selection should be referred to “TY R83-2-9002-1”.
5.11 Texture/Glossing of housing
z The texture area and texture no should follow Philips make-up sheet.
z The exterior surfaces shall have a uniform texture.
z Philips must approve the mold texturing.
z Detail document for texture refer to “UN-D249”, “UN-D 600”.
z < = 20 gloss units
5.12 Tilt and swivel base
z Tilt angle : -5 ° +2/- 0 ° (forward)
+20 °+0/-2 ° (backward)
5.13 Kensington Lock
z Must meet Kensington_slot.spec “TYE-M0004”.
z MMD request metal plate in Kinsington hole.
5.14 Label
z Regulatory label / Carton label should follow Philips requirement.
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z China RoHS label
z Detail document refer to Philips Engineering Reference Book.
5.15 Product dimension / Weight (Refer to SHT 191 )
z Unit dimension : 506mm (W) * 403mm(H) * 205mm(D)
z Packed unit dimension: 570mm(W) * 124mm(H) * 453 mm(D) for WW
: 570mm(W) * 124mm(H) * 453 mm(D) for China
z Net weight : 5.0Kg (Including I/F cable 240 g)
z Gross weight : 6.2Kg for WW
: 6.2 Kg for China
5.16 Transportation
Follow TPV standard.
5.16.1 Transportation packages
Packaging and wrapping shall be sufficient to protect the product against damage or loss during shipment from
the supplier to the destination specified in the purchase order. All packaging materials are subject to test and
evaluation per TYE-M0002. The cushion material shall be constructed using EPS material.
5.16.2 Transportation Test
Follow TPV standard
A. Transportation test specification for all regions except China/India
• Package test
1. Random Vibration test
2. Drop test
3. Up-package test
B. Transportation test specification for China/India
• Package test
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1. Random Vibration test
2. Drop test
• Un-package test
1. Sine vibration (operating)
5.17 Pallet / Container loading
Transportation standards refer to TYE-M0002 and UAW-0309.
• Air shipment -
• Sea container 20'(pallet/slip sheet)
• Sea container 40'(pallet/slip sheet)
• Sea container 40' High Cube (pallet/slip sheet)
• Land 53‘ MEGA Trailer (pallet/slip sheet)
• Land 53‘ MEGA Trailer per HQ (pallet/slip sheet)
• Truck shipment-
Transportation request for all region except China/India
A. Air shipment
B. Container loading for WW
C. Land 53‘ MEGA Trailer
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Transportation request for China and India
A. Container loading for China and India
B. Truck loading
6. Environmental characteristics
The following sections define the interference and susceptibility condition limits that might occur between
external environment and the display device.
6.1 Susceptibility of display to external environment
Operating
- Temperature : 0 to 40 degree C
84
- Humidity : 20~90%RH (non-condensed)
- Altitude : 0-10000 ft
Storage
- Temperature : -20 to 60 degree C
- Humidity : 10~90%RH (non-condensed)
- Altitude : 0-30000 ft
Note: Pls also refer to DQE requirements
Operating
- Temperature : 0 to 35 degree C
- Humidity : 80% max
- Altitude : 0-3658m
- Air pressure : 600-1100 mBAR
Storage
- Temperature : -20 to 60 degree C
- Humidity : 95% max
- Altitude : 0-12192m
- Air pressure : 300-1100 mBAR
HUDSON 9
Note: recommend at 5 to 35°C, Humidity less than 60 %
6.2 Transportation tests
Refer to 5.15.2
6.3 Display disturbances from external environment
According to IEC 801-2 for ESD disturbances
6.4 Display disturbances to external environment
7. Reliability
7.1 Mean Time Between Failures
System MTBF (Including the LCD panel and CCFL) : 50,000 hrs
Fig 1: Measurement locations of Brightness Uniformity
Fig 2: Cross talk pattern
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Gray level 46 (64 Gray level)
Fig 3: Cross talk Pattern
Center at Gray level 0 (Black)
1/31/3
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1/6
1/2
YA
1/2
1/6
1/3
1/3
YB
1/3
1/2
1/2
SEPARATE SYNC.
VIDEO
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HORIZONTAL
VERTICAL
C
B
Q
P
D
A
VIDEO
R
O
E
S
COMPOSITE SYNC.
HORIZONTAL
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VIDEO
C
B
D
A
FIG-4 TIMING CHART -1
E
88
10. REGULATORY COMPLIANCE
10.1 Worldwide Regulatory
HUDSON 9
International Regulatory Specification
INTERNATIONALSa
Sa European Low Voltage Directives 73/23/EEC and 93/68/EEC Declaration of Conformity
EUROPE
E
Sa EN60950-1:2001 TUV certificate
GERMANY
O ISO 13406-2: 2001 & PREN 50279:1998 TUV-ERG certificate
O GS-Mark / EK1-ITB 2000 TUV-GS certificate
IEC60950-1:2001. Group -and national differences of all countries
listed in CB Bulletin No. 107A
European Electromagnetic Compatibility Directive 89/336/EEC amended by
the directive 93/68/EEC. EN 55022:1998 Class B
EN 55024: 1998
EN 61000-3-2: 2000
IEC 61000-3-3: 1994/EN61000-3-3: 1995
CISPR 22:1997 Class B International EMC standard
CB Report
and CB certificate
Declaration of Conformity and
Full EMC/CE test report
Sa EN60950-1:2001 SEMKO certificate
SWEDEN
O TCO 99 (TCO03)
RUSSIA Sa GOST R 50377-1992 GOST certificate
TCO99 (TCO03) report +
certificate
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SOUTH AFRICASa SABS IEC 60950 Certificate of Conformity
USA
Sa UL 60950-1: 2003 UL certificate
E FCC Part 15 Class B FCC ID grant
O Energy Star EPA registration
Sa CSA C22.2 No 60950 CSA certificate
CANADA
E ICES-003 issue 3 Statement on label
MEXICO Sa NOM-019-SCFI-1994 NOM certificate
Sa Korean Safety Control law IEC 60950 EK certificate
KOREA
E Regulations laws: EMI 1996-78, 80. EMS 1996-79,81 MIC certificate
SINGAPORE Sa IEC60950 PSB certificate
Sa GB4943-2001
CHINA
E GB9254-1998; 17625.1-2003
CCC certificate
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89
Sa CNS-14336 (IEC 60950-1)
TAIWAN
E CNS-13438 (CISPR22) Class B
Sa = Safety
E = Electromagnetic Compatibility
O = Other which including recycling, energy saving, ergonomics, Green Mark
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BSMI certificate
90
10.2 EMC Requirements
Supplier DVT EMI test result must be submitted prior to DVT samples delivery, and PVT EMI test result must be
submitted again prior to PVT samples delivery, which also has to meet Philips' immunity testing specification.
10.3 RoHS
Restriction on the use of certain hazardous substances.
Lead, Cadmium, Mercury, Hexavalent Chromium, Polybrominated Bipheny1 (PBB) and Polybrominated
HUDSON 9
Bipheny1 Ether (PBDE)(flame retardant)
10.4 WEEE
Producer (Philips) responsible for retailer take back schemes and recycling.
--System implemented.
--Collection and recycle targets.
10.5 Ongoing Regulatory
There's a possibility that other regulatory certificates will be required during the life of the product. It is the
responsibility of the supplier to provide related documentation.
.
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6.1 Main
Board…….
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Safety Checks
After the original service problem has been corrected,a complete safety check
should be made. Be sure to check over the entire set, not just the areas
where you have worked. Some previous servicer may have left an unsafe
condition,which could be unknowingly passed on to your customer. Be sure
to check all of the following:
Fire and Shock Hazard
1. Be sure all components are positioned in such a way as to avoid the
2. Never release a repaired unit unless all protective devices such as
3. Soldering and wiring must be inspected to locate possible cold solder
4. Check across-the-line components and other components for physical
5. No lead or component should touch a receiving tube or a resistor rated
6. Critical components having special safety characteristics are identified
7. When servicing any unit, always use a separate isolation transformer
8. Many electronic products use a polarized ac line cord (one wide pin on
9. After reassembly of the unit, always perform an leakage test or resistance
* Broken line
Implosion
1. All picture tubes used in current model receivers are equipped with an
2. Use only replacement tubes specified by the manufacturer.
X-radiation
1. Be sure procedures and instructions to all your service personnel cover
2. To avoid possible exposure to X-radiation and electrical shock, only the
3. It is essential that the service technician has an accurate HV meter
4. When the HV circuitry is operating properly there is no possibility of an x-
5. When troubleshooting and making test measurements in a receiver with
TELEVISION/MONITOR SAFFTY GUIDELINES FOR THE PROFESSIONAL SERVICE TECHNICIAN
possibility of adjacent component shorts. This is especially important
on those chassis which are transported to and from the service shop.
insulators, barries, covers, strain reliefs, and other hardware have been
installed in accordance with the original design.
* (where several critical components are grouped in one area) along with
the safety symbols on the schematic diagrams and/or exploded views.
for the chassis Failure to use a separate isolation transformer may
expose you to possible shock hazard, and may cause damage to
servicing instruments.
the plug.) Defeating this safety feature may create a potential hazard to
the service and the user. Extension cords which do not incorporate the
polarizing feature should never be used.
test from the line cord to all exposed metal parts of the cabinet. Also check
all metal control shafts(with knobs removed), antenna terminals, handles,
screws, etc. to be sure the unit may be safety operated without danger of
electrical shock.
integral implosion system. Care should always be used, and safety
glasses worn,whenever handling any picture tube. Avoid scratching or
otherwise damaging the picture tube during installation.
the subject of X-radiation. Potential sources of X-rays in TV receivers are
the picture tube and the high voltage circuits. The basic precaution which
must be exercised is to keep the high voltage at the factory recommended
level.
manufacturer's specified anode connectors must be used.
available at all times. The calibration of this meter should be checked
periodically against a reference standard.
radiation problem. High voltage should always be kept at the manufacturer's
rated value-no higher - for optimum performance. Every time a color set is
serviced, the brightness should be run up and down while monitoring the
HV with a meter to be certain that the HV is regulated correctly and does
not exceed the specified value. We suggest that you and your technicians
review test procedures so that HV and HV regulation are always checked as
a standard servicing procedure, and the reason for this prudent routine is
clearly understood by everyone. It is important to use an accurate and
reliable HV meter. It is recommended that the HV recorded on each
customer's invoice, which will demonstrate a proper concern for the
customer's safety.
a problem of excessive high voltage, reduce the line voltage by means of
a Variac to bring the HV into acceptable limits while troubleshooting. Do
not operate the chassis longer than necessary to locate the cause of the
excessive HV.
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HUDSON 9
6. New picture tubes are specifically designed to withstand higher operathng
voltages without creating undesirable X-radiation. It is strongly
recommended that any shop test fixture which is to be used with the new
higher voltage chassis be equipped with one of the new type tubes
designed for this service. Addition of a permanently connected HV meter
to the shop test fixture is advisable. The CRT types used in these new
sets should never be replaced with any other types, as this may result in
excessive X-radiation.
7. It is essential to use the specified picture tube to avoid a possible X-diation
problem.
8. Most TV receivers contain some type of emergency "Hold Down" circuit to
prevent HV from rising to excessive levels in the presence of a failure
mode. These various circuits should be understood by all technicians
servicing them, especially since many hold down circuits are inoperative
as long as the receiver performs normally.
Leakage Current Cold Check
1. Unplug the ac line cord and connect a jumper between the two prongs of
the plug.
2. Turn on the power switch.
3. Measure the resistance value between the jumpered ac plug and all
exposed cabinet parts of the receiver, such as screw heads, antennas,
and control shafts. When the exposed metallic part has a return path to
the chassis, the reading should be between 1 megohm and 5.2 megohms.
When the exposed metal does not have a return path to the chassis, the
reading must be infinity. Remove the jumper from the ac line cord.
TO
INSTRUMENTS
EXPOSED
METAL PARTS
Leakage Current Hot Check
1. Do not use an isolation transformer for this test. Plug the completely
reassembled receiver directly into the ac outlet.
2. Connect a 1.5k, 10w resistor paralleled by a 0.15uf. capacitor between
each exposed metallic cabinet part and a good earth ground such as a
water pipe, as shown above.
3. Use an ac voltmeter with at least 5000 ohms volt sensitivity to measure
the potential across the resistor.
4. The potential at any point should not exceed 0.75 volts. A leakage current
tester may be used to make this test; leakage current must not exceed
0.5 milliamps. If a measurement is outside of the specified limits, there is
a possibility of shock hazard. The receiver should be repaired and
rechecked before returning it to the customer.
5. Repeat the above procedure with the ac plug reversed.( Note: An ac
adapter is necessary when a polarized plug is used. Do not defeat the
polarizing feature of the plug.)
Picture Tube Replacement
The primary source of X-radiation in this television receiver is the picture
tube. The picture tube utilized in this chassis is specially constructed to limit
X-radiation emissions. For continued X-radiation protection, the replacement
tube must be the same type as the original, including suffix letter, or a Philips
approved type.
Parts Replacement
Many electrical and mechanical parts in Philips television sets have special
safety related characteristics. These characteristics are often not evident from
visual inspection nor can the protection afforded by them necessarily be
obtained by using replacement components rated for higher voltage, wattage,
etc. The use of a substitute part which does not have the same safety
characteristics as the Philips recommended replacement part shown in this
service manual may create shock, fire, or other hazards
0.15 uF
1500 ohm, 10W
WATER
PIPE
EARTH
GROUND
91
WARNINGOFF
SERVICE NOTE
:
Before removing the CRT anode cap, turn the unitand short the HIGH VOLTAGE to the CRT DAG ground.
:
The CRT DAG is not at chassis ground.
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