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20" & 21.5"TV Monitor Chassis: Meridian 1
Service 201T1SB/00
Service 221T1SB/00
Service
Description Page Description Page
Table of Contents.........................................................1 6.1 Scaler Board......................................................22
Page
Revision List................................................................2 6.2 Power Board................................................................36
Important Safety Notice.............................................3 6.3 IR Board.........................................................38
1. General Specifications...............................................5 6.4 Key Board.........................................................39
2. TV Monitor Description...........................................6 7. PCB Layout.........................................................40
3. Operation Instructions................................................7 7.1 Scaler Board.....................................................40
3.1 Front and Side Controls....................................7 7.2 Power Board...................................................42
3.2 Remote Control ...............................................8 7.3 IR Board.........................................................44
3.3 Connection Overview............................................10 7.4 Key Board.........................................................44
4. Input/output Specification.......................................13 8. Wiring Diagram...................................................45
4.1 Input Signal Connector.........................................13 9. Scaler Board Overview........................................46
4.2 Factory Preset Display Modes................................14 10. Mechanical Instructions........................................47
4.3 Pixel Defect Policy..........................................15 11. Trouble Shooting...............................................50
4.4 Failure Mode of Panel .....................................17 12. ISP Instructions...........................................................53
5. Block Diagram.................................................18 13. White Balance, Luminance Adjustment..................54
5.1 Software Flow Chart.............................................18 14. Monitor Exploded View................................................55
5.2 Electrical Block Diagram.......................................20 15. Recommended & Spare Parts List............................56
6. Schematic Diagram............................................... 22 16. General Product Specification.............................60
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
Copyright 2009 Philips Consumer Lifestyle Subject to modification K Jun, 26, 2009
2 Meridian 1
Revision List
Version Release Date Revision History
A00 Jun, 26,2009 Initial release, Draft Version
A01 Jul,09,2009 Add CTV Model 201T1SB/00
Meridian 1 3
Important Safety Notice
Read and understand all instructions before you use your TV. If damage is caused by failure to follow instructions,
the warranty does not apply.
Safety
Risk of electric shock or fire!
Never expose the TV to rain or water. Never place liquid containers. Such as vases, near the TV. If liquids
are spilt on or into the TV, disconnect the TV from the power outlet immediately. Contact Philips Consumer
Care to have the TV checked before use.
Never place the TV, remote control or batteries near naked flames or other heat source, including direct
sunlight. To prevent the spread of fire, keep candles or other flames away from the TV, remote control and
batteries at all time.
Never insert objects into the ventilation slots or other openings on the TV.
When the TV is swiveled ensure that no strain is exerted on the power cord. Strain on the power cord can
loosen connections and cause arcing.
Risk of short circuit or fire!
Never expose the remote control or batteries to rain, water or excessive heat.
Avoid force coming onto power plugs. Loose power plugs can cause arcing or fire.
Risk of injury or damage to the TV!
Two people are required to lift and carry a TV that weights more than 25 kg.
When stand mounting the TV, use only the supplied stand. Secure the stand to the TV tightly. Place the TV
on a flat, level surface that can support the combined weight of the TV and stand.
When wall mounting the TV, use only a wall mount that can support the weight of the TV. Secure the wall
mount to a wall can support the combined weight of the TV and wall mount. Koninklijke Philips Electronics
N.V. bears on responsibility for improper wall mounting that result in accident, injury or damage.
Risk of injury to children! Follow these precautions to prevent the TV from toppling over and causing injury to
children:
Never place the TV on a surface covered by a cloth or other material that can be pulled away.
Ensure that no part of the TV hangs over the edge of the surface.
Never place the TV on tall furniture (such as a bookcase) without anchoring both the furniture and TV to the
wall or a suitable support
Educate children about the dangers of climbing on furniture to reach the TV.
Risk of overheating! Never install the TV in a confined space. Always leave a space of at least 4 inches around
the TV for ventilation. Ensure curtains or other objects never cover the ventilation slots on the TV.
Risk of damage to the TV! Before you connect the TV to the power outlet, ensure that the power voltage
matches the value printed on the back of the TV. Never connect the TV to the power outlet if the voltage is
different.
Risk of injury, fire or power cord damage! Never place the TV or any objects on the power cord.
4 Meridian 1
To easily disconnect the TV power cord from the power outlet, ensure that you have full access to the power
cord at all times.
When you disconnect the power cord, always pull the plug, never the cable.
Disconnect the TV from the power outlet and aerial before lightning storms. During lightning storms, never touch
any part of the TV, power cord or aerial cable.
Risk of hearing damage! Avoid using earphones or headphones at high volumes or for prolonged periods of
time.
If the TV is transported in temperatures below 5, unpack the TV and wait until the TV temperature matches
room temperature before connecting the TV to the power outlet.
Screen Care
Avoid stationary images as much as possible. Stationary images are images that remain on-screen for
extended periods of time. Examples include: on-screen menus, black bars and time displays. If you must use
stationary images, reduce screen contrast and brightness to avoid screen damage.
Unplug the TV before cleaning.
Clean the TV and frame with a soft, damp cloth. Never use substances such as alcohol, chemicals or household
cleaners on the TV.
Risk of damage to the TV screen! Never touch, push, rub or strike the screen with any object.
To avoid deformations and color fading, wipe off water drops as soon as possible.
Recycling
Your product is designed and manufactured with high quality materials and components, which can be recycled
and reused. When you see the crossed-out wheeled bin symbol attached to a product, it means the product is
covered by the European Directive 2002/96/EC:
Never dispose of your product with other household waste. Please inform yourself about the local rules on the
separate collection of electrical and electronic products. The correct disposal of your old product helps prevent
potentially negative consequences for the environment and human health.
Your product contains batteries covered by the European Directive 2006/66/EC, which cannot be disposed of with
normal household waste.
Please inform yourself about the local rules on the separate collection of batteries. The correct disposal of batteries
helps prevent potentially negative consequences for the environment and human health.
The most updated user manual on line
The contents of the user manual are subject to change. Please refer to www.philips.com/supp ort for the most
updated user manual info reference.
Meridian 1 5
1. General Specifications
Model 201T1 221T1
Picture / Aspect Ratio 16:9
Display
Resolution 1600 x 900 @ 60Hz 1920 x 1080 @ 60Hz
Sound Output (RMS Watts) 3.0W x 2
Sound Mode Mono, Stereo, SAP (Secondary Audio Program)
Picture Formats Super zoom, 4:3, Movie expand 14:9, Movie expand 16:9, 16:9 subtitle,
Widescreen, Auto
Smart Mode Personal, Vivid, Standard, Movie, Game, Power saver
Rear Connectors YPbPr: Component video input + Audio L/R (support 480i/p, 576i/p,720p,
1080i/p)
HDMI (Ver. 1.3a HDMI, support video: 480i/p, 576i/p, 720p, 1080i/p)
PC IN: VGA, PC Audio IN
RS232 connector
SCART1 input / output :CVBS in/out, RGB in, S-Video in, Audio L/R in/out
SPDIF (digital audio) output: carrying stereo or multi-channel output.
Side Connectors CI slot input : PCMCIA card ( 5V)
Composite video input + Audio L/R
USB 4-pin Type-A connector for SW update
Power Consumption < 50 W < 35W (TBD)
Off mode power < 0.5W
Mains Power 100~240V, 50Hz
Ambient temperature 5 to 40 degrees Celsius
Tuner / Reception / Antenna input: 75 ohm coaxial (IEC75)
Transmission
DVT: DVB Terrestrial, DVB- T MPEG4
TV system: DVB COFDM 2K / 8K; PAL I, B/G, D/K; SECAM B/G, D/K, L/L'
Video playback: NTSC, SECAM, PAL
Tuner Bands: Hyperband, S-channel, UHF, VHF
Note: Product information is subject to change without notice. For detailed product information, go to
www.philips.com/support.
6 Meridian 1
2. TV Monitor Description
The TV monitor will contain a scaler board, a power board, an IR board and a key board. The scaler board houses
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 scaler board chips
each voltage.
TV Monitor Block Diagram
CCFL Drive. Flat Panel and
CCFL backlight
CVI
Tuner
HDMI
Power Board
Scaler Board Audio
(Include: Adapter, Inverter)
S-Video
SCART
VGA/ YPbPr
Audio / Video Signal, DDC
AC-IN
Key Board HOST Computer
100V-240V
IR Board
Meridian 1 7
3. Operating Instructions
3.1 Front and side controls
Side Controls and indicators
1. POWER: Switches the TV on or off. The TV is not powered off completely unless it is physically unplugged.
2. SOURCE: Selects connected devices.
3. MENU/OK: Displays the on-screen menu and confirms a selection in menus.
4. CH +/-: Switches to the next or previous channel.
5. VOL+/-: Increases or decreases volume.
6. Power indicator: Red LED: In standby mode or off. Green LED: Power on.
8 Meridian 1
3.2 Remote Control
Meridian 1 9
1. (Standby-On): Switch the TV to standby if the TV is on. Switch the TV on if the TV is in standby.
2. 0-9 (Numeric buttons): Select a channel or setting.
3. PRE CH: Return to the previously viewed channel.
4. TV. Press to choose TV mode.
5. PC. Press to choose PC mode.
6. (Mute): Switch the sound on or off.
7. CH / V (Channel / V): Switch to the next or previous channel.
8. ZOOM: Toggle among screen formats.
9. SLEEP: Toggle to select the preset time to switch the TV to standby mode automatically.
10. PICTURE: Toggle to select the Smart Picture setting.
11.OK: Confirm an entry or selection and display the channel grid, when watching TV.
12. (Navigation buttons): Navigate through the menus.
13.INFO: Display or hide the information screen about the selected channel.
14.Color buttons: Select tasks or options.
15.SIZE: Toggle to change the font size in Teletext mode. (Full screen / Top half / Bottom half)
16. SUBPAGE: Display the sub page when the Teletext information has more than one page.
17.REVEAL: Reveal hidden information of Teletext.
18. HOLD: Toggle to stop the scrolling of pages to stop the text decoder receiving data.
19.FREEZE: Press to freeze the TV picture.
20.AD (Audio Description) (For RF Digital TV only): UK only: Enables audio commentary for the visually
handicapped.
21.SOURCE: Select connected devices.
22.EPG; Switch the Electronic Program Guide On or Off.
23.VIDEO: Press to switch to VIDEO YPbPr /Composite /SCART mode.
24. HDMI: Press to switch to HDMI mode.
25.VOL +/-: Increase or decrease the volume.
26.DUAL I-II: Toggle to select mono / stereo / dual I/dual II from TV RF input.
27. SOUND: Toggle to select the Smartsound Mode.
28.MENU/EXIT: Press to open or close the on-screen menu.
29.MIX: Press to overlay the Teletext page on the TV picture.
30.TELETEXT: Press to open or close the Teletext.
31.INDEX: Press to display the index page of Teletext.
32. SUBTITLE: In TV mode: Press to turn the subtitle on or off. In Text mode: Press to open the subtitle page.
33.FAV: Press to display the Favorite List.
34.CH-LIST: Press to display the Channel List.
10 Meridian 1
3.3 Connection overview
Rear Connectors
1. PC IN: Audio and video input from a computer. (see Fig-1)
2. EXT 2 (Y PbPr and AUDIO L/R): Analogue audio and video input from analogue or digital devices such as
DVD players or game consoles. (see Fig-2)
Fig- 1 Fig- 2
Meridian 1 11
3. EXT 1 (SCART): Analogue audio and video input from analogue or digital devices such as DVD players or
game consoles. (see Fig-3)
4. TV ANTENNA: Signal input from an antenna, cable or satellite (see Fig-4)
Fig- 3 Fig- 4
5. AV OUT (VIDEO OUT and AUDIO OUT L/R): Audio and video output to analogue devices such as another TV
or a recording device (see Fig-5)
6. SPDIF OUT: Digital audio output to home theatres and other digital audio systems(see Fig-6)
Fig- 5 Fig- 6
7. HDMI: Digital audio and video input from high-definition digital devices such as Blu-ray players (see Fig-7)
Fig- 7
12 Meridian 1
Side connectors
1. COMMON INTERFACE: Slot for a Conditional Access Module (CAM). (see Fig-8)
2. AUDIO L/R: Audio input from analogue devices connected to VIDEO. (see Fig-9)
Fig- 8 Fig- 9
3. VIDEO: Composite video input from analogue devices such as VCRs. (see Fig-10)
4. SERVICE: USB port, for upgrade firmware purpose only. (see Fig-11)
Fig- 10 Fig- 11
Meridian 1 13
4. Input/ Output Specification
4.1 Input Signal Connector
Analog Connectors
Pin No. Description Pin No. Description
1. Red 9. +5V (Supply from PC)
2. Green 10. Sync GND
3. Blue 11. NC
4. NC 12. Bi-directional data(SDA)
5. GND 13. H-sync
6. Red GND 14. V-sync
7. Green GND 15. Data clock(SCL)
8. Blue GND
HDMI Connectors
Pin No. Description Pin No. Description
1. TMDS Data2+ 11. TMDS Clock Shield
2. TMDS Data2 shield 12. TMDS Clock-
3. TDMS Data2- 13. CEC
4. TMDS Data1+ 14. Reserved (N.C. on device)
5. TMDS Data1 shield 15. SCL
6. TMDS Data1- 16. SDA
7. TMDS Data0+ 17. DDC/CEC Ground
8. TMDS Data0 shield 18. +5V Power
9. TMDS Data0- 19. Hot Plug Detect
10. TMDS Clock+
14 Meridian 1
4.2 Factory Preset Modes
Computer Formats
Resolution Refresh Rate Remark
640 x 480 60Hz
640 x 480 75Hz
800 x 600 60Hz
800 x 600 75Hz
1024 x 768 60Hz
1024 x 768 75Hz
1280 x 1024 60Hz
1440 x 900 60Hz
1600 x 900 60Hz Only for 201T1
1680 x 1050 60H z
1920 x 1080 60Hz_RB Only for 221T1
Video Formats
Resolution Refresh Rate
480i 60Hz
480p 60Hz
576i 50Hz
576i 50Hz
720p 50Hz , 60Hz
1080i 50Hz , 60Hz
1080p 50Hz , 60Hz
Meridian 1 15
4.3 Pixel Defect Policy
Philips strives to deliver the highest quality products. We use some of the industry's most advanced manufacturing
process and practice stringent quality control. However, pixel or sub pixel defects on the TFT LCD panels used in
flat panel monitors are sometimes unavoidable. No manufacturer can guarantee that panels will be free from pixel
defects, but Philips guarantees that any monitor with an unacceptable number of defects will be repaired or
replaced under warranty. This notice explains the different types of pixel defects and defines acceptable defect
levels for each type. In order to qualify for repair or replacement under warranty, the number of pixel defects on a
TFT LCD panel must exceed these acceptable levels. For example, no more than 0.0004% of the sub pixels on a
19" XGA monitor may be defective. Furthermore, Philips sets even higher quality standard for certain types or
combinations of pixel defects that are more noticeable than others. This policy is valid worldwide.
subpixel subpixel subpixel
R G B R G B
pixel
Pixels and Sub pixels
A pixel, or picture element, is composed of three sub pixels in the primary colors of red, green and blue. Many
pixels together form an image. When all sub pixels of pixel are lit, the three colored sub pixels together appear as a
single white pixel. When all are dark, the three colored sub pixels together appear as a signal black pixel. Other
combinations of lit and dark sub appear as single pixels of other colors.
Types of Pixel Defects
Pixel and sub pixel defects appear on the screen in different ways. There are two categories of pixel defects and
several types of sub pixel defects within each category.
Bright Dot Defects Bright dot defects appear as pixels or sub pixels that are always lit or `on'. That is, a Bright dot is
a sub-pixel that stands out on the screen when the monitor displays a dark pattern. There are three types of bright
dot defects:
G P W
R Y
B C
16 Meridian 1
Two adjacent lit sub pixels:
- Red + Blue = Purple Three adjacent lit sub pixels
One lit red, green or blue sub pixel - Red + Green = Yellow (one white pixel)
- Green + Blue = Cyan (Light Blue)
A red or blue bright dot must be more than 50 percent brighter than neighboring dots while a green
bright dot is 30 percent brighter than neighboring dots.
Black Dot Defects Black dot defects appear as pixels or sub pixels that are always dark or `off'. That is, a dark dot
is a sub-pixel that stands out on the screen when the monitor displays a light pattern. There are two types of black
dot defects:
One dark sub pixel Two or three adjacent dark sub pixels
Proximity of Pixel Defects
Because pixel and sub pixels defects of the same type that are near to one another may be more noticeable,
Philips also specifies tolerances for the proximity of pixel defects.
Pixel Defect Tolerances
The HP display does not have more than:
3 bright dots
5 dark dots
5 total bright and dark dots
No more than two adjacent (less than 2.5 mm edge-to-edge) defective pixels.
Meridian 1 17
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
18 Meridian 1
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
Meridian 1 19
1) MCU initializes.
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.
Scaler 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 Scaler send out an interrupt request?
14) Wake up the Scaler.
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
disappears.
17) Program the Scaler to be able to show the coming mode.
18) Process the OSD display.
19) Read the keyboard. Is the power key pressed?
20 Meridian 1
5.2 Electrical Block Diagram
5.2.1 Block diagram
NAND Flash NOR Flash
DDR2 x 2 NAND Flash NOR Flash
32/64Mbyte 16MByte 512K Byte
16MByte 512K Byte
Tuner MPEG2 TS USB 2.0
CI system
MT8295 SPDIF Out
I2C MT5362 LVDS to panel
IFAT +/- .MCU RC
SIF .DTV receiver/demodulator UART for ISP & Factory alignment
.MPEG/video/audio decoder Keys
CVBS
.Scaling
2
.Video enhancement IC
ATV CVBS NVM
AV CVI x 1 .3D comb 24C32
CVBS / YC x1 (side) .LVDS Transmitter
ATV CVBS out
.HDMI 1.3 TS5A3157
.ADC Analog MUX
SCART1 CVI DTV CVBS out
PC Monitor CVBS out
HDMI-1
Audio AMP
I2S TDA8933BTW
DDC DDC
24C02 24C02 AR/L out X3
I2C ADCOUT
L/R
Line L/R out
MT8292
Audio R/L of AV CVI
.8 Channel Analog MUX in
Audio R/L of PC Scart l L/R out
.3 L/R line out
Audio R/L of Side (CVBS / YC)
.1 Headphone out Headphone out
Meridian 1 21
5.2.2 Power / Inverter Board
AC Input 16 V
Bridge
EMI Filter Rectifier Transformer Rectifier
and Filter Diodes
5V
Start Resistor
(R904, R905)
Feedback
PWM Control
Power Switch Circuit
(IC901)
(Q901
Photocoupler
(IC903)
Output Transformer 16 V
Circuit (PT802)
Lamp
5V
PWM Control
Feedback OZ9938GN B ON/OFF
Circuit
(IC801) DIM
22 Meridian 1
6. Schematic
6.1 Scaler Board
715G3292-1B
1 2 3 4 5
OPWRSB
5 OPWRSB
STAND_BY
5 STAND_BY BRIGHT_ADJ
Power 1 14 BRIGHT_ADJ
14 INVERTER_ON_OFF
6 MEM_VREF
INVERTER_ON_OFF
MEM_VREF
+18V_A
6 +18V_A
+18V +18V_A
R129
NC/0 OHM +-5% 1/4W
A +5V_STB +5V_SW A
+5V FB100 120R/3000mA +5V_STB
Q105
DC POWER INPUT 1
FB101
2
120R/3000mA Q104 SI5441DC
1 S D 8
2 S D 7
BRIGHT_ADJ: 8 D D 1 3 S D 6
R119
R120
1 2 + C106 7 D
Normal:Max:+3V3, Min:0V FB102 NC/120R/3000mA C107 100N 16V D 2 4 G D 5
6 D D 3
Stand_By:0V 470uF 10V 5 S G 4
SI4835DDY
22KOHM +-5% 1/10W
68KOHM +-5% 1/10W
1 2 OPWRSB(+5V_SW ON/OFF): OPWRSB(+5V_SW ON/OFF):
C105 + C101 C109 + C103
Normal: High 100N 16V 330uF 10V Normal: High 100N 25V 100uF 25V
INVERTER_ON_OFF:
TP101
TP102
TP103
TP104
TP105
Stand_By: Low Stand_By: Low
Normal: High
Stand_By: Low
R130 R133
1
1
1
1
1
DV33SB
1KOHM +-5% 1/10W 1KOHM +-5% 1/10W
3
3
10 INVERTER_ON_OFF R107 R108
9 BRIGHT_ADJ OPWRSB 2 Q101 C114 OPWRSB 2 Q102 C115
8 R144 BC847C NC/4.7UF 10V BC847C NC/4UF7 25V
+5V
7 NC/4K7 1/16W 5% 10KOHM +-5% 1/10W 10KOHM +-5% 1/10W
1
1
6 SMD/0402
5 C121 C122
4 4.7UF 10V 4.7UF 10V
3 +18V STANDBY
2 R126
1 STANDBY NC/10K 1/16W 5%
R113 NC/100 OHM +-5% 1/10W OPWRSB
OPWRSB Q106
D102
CN100 R114 1KOHM +-5% 1/10W NC/BC847C SMD/0402
CONN 2 K A 1 C124
R116 100 OHM +-5% 1/10W
DV33
NC/100N 16V
SMD/0402
OPWRSB: +5V_STB(+5V1) TO +5V_SW BY OPWRSB +18V TO +18V_A BY OPWRSB
BAS32L Normal: High
Stand_by: Low
B B
R125 R124 DV18_DDR
10R 1/8W 5% 10R 1/8W 5% R131 1K 1/10W 1%
+5V_SW +5V_SW MEM_VREF
U103 U104 R132
9 9 1K1/10W C119 C120
Thermal Pad Thermal Pad 1uF16V 100N 16V
8 VIN VCC 1 8 VIN VCC 1
7 2 7 2 SMD/0402
C132 LX REF C108 LX REF
6 PGND GND 3 6 PGND GND 3
10K 1/10W
10U 16V 5 4 10U 16V 5 4
EN FB C128 C104
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