Viewsonic N2201W-1-M, VS12247-1M Schematic
Service Manual
ViewSonic N2201w-1M
Model No. VS12247-1M
22” LCD TV
(N2201w-1M_SM Rev. 1a Jul. 2008)
ViewSonic® 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
Copyright
Copyright © 200
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 ViewSonic Corporation.
Disclaimer
ViewSonic makes no representations or war r ant ies, either expressed or impl i ed, with respect to the contents
hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further,
ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents
hereof without obligation of ViewSonic to notify any person of such revision or changes.
Trademarks
Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Product disposal at end of product life
The lamp in this product contains mercury. Please dispose of in accordance with local, state or federal laws.
8 by ViewSonic Corporation. All rights reserved. No part of this publication may be
Revision History
Revision SM Editing Date ECR Number Description of Changes Editor
1a 08/06/08 Initial Release Sophia Kao
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TABLE OF CONTENTS
1. Precautions and Safety Notices................................................................. 1
2. Specification................................................................................................. 3
3. Front Panel Function Control Description................................................ 8
4. Circuit Description....................................................................................... 15
5. Adjustment Procedure................................................................................ 18
6. Trouble Shooting Flow Chart................................................................ ..... 36
7. Block Diagram............................................................................................. 42
8. Schematic Diagrams.................................................................................... 45
9. PCB Layout Diagrams................................................................................. 59
10. Exploded View And Exploded Parts List.................................................. 62
11. Recommend Spare Parts List................................................................... 65
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1. Precautions and Safety Notices
1. Appropriate Operation
(1) Turn off the product before cleaning.
(2) Use only a dry soft cloth when cleaning the LCD panel surface.
(3) Use a soft cloth soaked with mild detergent to clean the display housing.
(4) Disconnect the power plug from AC outlet if the product is not used for a long period of
time.
(5) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display
off.
(6) Do not touch the LCD panel surface with sharp or hard objects.
(7) Do not place heavy objects on the LCD display, video cable, or power cord.
(8) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(9) Do not operate the product under the following conditions:
- Extremely hot, cold or humid environment.
- Areas susceptible to excessive dust and dirt.
- Near any appliance generating a strong magnetic field.
- Place in direct sunlight.
2. Caution
No modification of any circuit should be attempted. Service work should only be performed after
you are thoroughly familiar with all of the following safety checks and servicing guidelines.
3. Safety Check
Care should be taken while servicing this LCD display. Because of the high voltage used in the
inverter circuit, the voltage is exposed in such areas as the associated transformer circuits.
4. Power Supply Requirements
The external AC power operating range shall be from 90 to 264Vac
5. LCD Module Handling Precautions
5.1. Handling Precautions
(1) Since front polarizer is easily damaged, pay attention not to scratch it.
(2) Be sure to turn off power supply when inserting or disconnecting from input connector.
(3) Wipe off water drop immediately. Long contact with water may cause discoloration or
spots.
(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard
surface.
(6) Since CMOS LSI is used in this module, take care of static electricity and insure human
earth when handling.
(7) Do not open nor modify the Module Assembly.
(8) Do not press the reflector sheet at the back of the module to any directions.
(9) In case if a Module has to be put back into the packing container slot after once it was
taken out from the container, do not press the center of the CCFL Reflector edge.
Instead, press at the far ends of the CFL Reflector edge softly. Otherwise the TFT
Module may be damaged.
(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate nor
tilt the Interface Connector of the TFT Module.
(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for
example), do not twist nor bend the TFT Module even momentary. At designing the
enclosure, it should be taken into consideration that no bending/twisting forces are
applied to the TFT Module from outside. Otherwise the TFT Module may be damaged.
(12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please
follow local ordinances or regulations for disposal.
(13) Small amount of materials having no flammability grade is used in the LCD module.
The LCD module should be supplied by power complied with requirements of Limited
Power Source, or be applied exemption.
(14) The LCD module is designed so that the CFL in it is supplied by Limited Current
Circuit. Do not connect the CFL in Hazardous Voltage Circuit.
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Handing and Placing Methods
1.Do not touch the surface of panel. Only touch the metal frame of the LCD panel
or the front cover of the TV set.
2.Place the TV set on a clean and soft foam pad. Do not place the TV set facedown
on the rough obiects, it may scratch TV panel.
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2. Specification
Parameter Specification
LCD Type
LCD Interface
Resolution (Native)
Display Area
Pixel Pitch
Viewing Angle H = +/-85°, V = +/-80° with CR10
Contrast Ratio
Dynamic Contrast Ratio
Brightness 300 nits (Typical), 250 (Min.);
Response Time 1.3/3.7ms
Brightness Uniformity 1.3(Max), measured per panel spec.
Chromaticity(CIE1931)
Colors 16.7M
Surface Treatment
Backlight 4 CCFLs (Cold cathode Fluorescent Lamp)
Preset Color Panel Default
Gray Scale 255
Rated Life (Backlight) > 50KHrs*
Front Screen Artifacts
Panel Acceptance Spec
a-si TFT active matrix, Normally White
2-Channel LVDS
1680 x 1050
22” diagonal; 473.76(H) x 296.1(V) mm
0.282(H) x 0.282(V) mm
1000:1(Typical), 700(Min.) for AV mode
800:1(Typical), 600(Min.) for PC mode
Not support
White-x:0.276,White-y:0.282(Cold Mode-11000);
White-x:0.285, White-y:0.293 (Standard Mode-9300);
White-x:0.293,White-y:0.309(Warm Mode-8000).
Auto adjust(+-0.03)
Hard coating (3H)
VS Standard:
a.) No Visible Streaking, Sag or Smearing artifacts when driven by the specified
video cards (see 7.1 General Test Equipment) in the primary mode (VGA & 60
Hz) and after user adjustment
b.) No image drift or lose fine-tune settings due to panel temperature change.
Refer to the panel acceptance criteria specification.
Note: Intermittent and/or Display Pattern defects which result in further bright or
dark dots will be counted individually against the above specification.
Note: Panel performance characteristics “ MUST BE” met in all display modes/inputs at
standard test conditions.
1. RF Tuner
RF tuner of this product shall be provided by “ Samsung ” DTVS205FL201A for NTSC/ATSC.
THe following table defines this tuner specification.
Parameter Specification
RF Input Level 45 ~ 85dBV
RF Tuning Range
RF Tuner Sensitivity (S/N Ratio at
un-weight)
Channel Bandwidth
CVBS Characteristics:
Video Amplitude Signal
DC Level Sync Pulse
Audio Characteristics:
AF Output Level Measured via LP 20 kHz
Filter, RMS Decoder,
75us De-emphasis
THD
S/N
Compatible system TUNER NTSC/ATSC/ClearQAM
Compatible system AV
NTSC: 55.25 to 801.25 MHz, 2-69 Channels for Off-Air and
1-125 Channels for CATV
45 dB (min.)
NTSC: 6 MHz Maximum
0.7(min.)-1.1(max.) V
Typical. 0.35 V
Typical. 0.35V rms
10% (max.)
44 dB (min.)
NTSC M
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2. Video
Built-in A/D converter shall provide analog to digital converter for this product
Input Parameter Specification
CVBS Characteristics:
Video Amplitude Signal
DC Level Sync Pulse
S-Video Characteristics:
Video Amplitude Signal
Y, Pb, Pr Characteristics:
Video Amplitude Signal
Video Bandwidth NTSC: 6 MHz Maximum
HDMI Characteristics Panel Link T.M.D.S HDMI-1.1
RGB Characteristics:
Signal Type
Sync Type
Input Signal Rating
Sync Level:
Frequency Range
Pixel Color
DDC Compliance
EDID Data Table
0.7(min.)-1.1(max.) V
Typical.0.3 V
Y : 1.0Vp-p W / Neg. Sync (IN 75 ȍ )
C : 0.285Vp-p (IN 75 ȍ )
Y:1.0Vp-p (IN 75 ȍ)
Pb:0.7 Vp-p (IN 75 ȍ),Pr:0.7 Vp-p (IN 75 ȍ)
Analog VGA
TTL, Separate Sync, with 4.7K pull-down resistors
1250mV Max without damage to the product, 0-700 mV Full Range
2.5-5.25 V
Horizontal: 31.5-60K Hz, Vertical: 56-75 Hz
16 M
DDC2B Compliant, Rev 1.3
See Appendix B
3. Audio
Audio amp of this product shall be provided by “ST”with a Model Number of TDA7266. In addition,
a pair of speakers shall be integrated within this product. The audio signals of this product shall comply with
the specification listed in the following table.
Parameter Specification
Power Output Max
Rating
Speaker Impedance
Line In Per Tuner Spec
Flatness of Amplitude
Response
Total Harmonic Distortion
(Po=0.1 to 1W, f=1KHz)
Signal to Noise:
3W at 10 % T.H.D Distortion 3W at 10% T.H.D Distortion
main spk :8 ȍ main spk : 8ȍ
+/- 3 db (at 1KHz @1W) +/- 3 db (at 1KHz @1W)
<2% <2%
30dB @1 kHz 40dB @1 kHz
Tuner Input Base band Input
500 mV rms (Typ)
1.6 V rms (Max)
Impedance: 600 ohms
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4. Electrical
The following table defines the electrical specification of this product.
ELECTRICAL SPECIFICATION
Power Input Voltage Range 100-240VAC +/-10% Wide Range
Input Frequency Range 47-63 Hz
Input Current 1A @ 115 VAC
Max in <150A (with fully loaded power supply) at 230Vac
Power Supply Inrush
Power Consumption: Normal: 120 W (Max) // Stand by: < 1W (Max, when Power Off)
Interference with RF and Video
Electromagnetic Compatibility
Power Supply Transient Immunity
(Supply Transients and Outage)
Surge Immunity Test
Power Supply Missing Cycle
Immunity
Power Supply Acoustics
Efficiency >= 80% @ full load, nominal line
Leakage Current <0.5mA @ 240VAC
Power Saving (DPMS) < 1W
Recovery Time < 15 sec.
Power Factor Correction Compliant with EN61000-3-2
Shall not result in permanent failure of power supply (including blown
fuse)
There shall be no visible interference between power supply, RF and
video signals. This applies to all available RF channels and video
modes.
This product shall adhere to the compatibility and immunity
specifications in FCC.
Able to withstand an ANSI / IEEE C62.41-1980 2000V ring wave with
no damage.
Able to withstand 1.25X nominal Line Voltage for one cycle with no
damage.
Function properly without reset or visible screen artifact when 1/3
cycle of AC Power is randomly missing.
The Power Supply shall not produce audible noise that would be
detectable by the user (Excluding Power Supply Fan).
“Audible” shall be defined in accordance with ISO 7779 (DIN
EN27779:1991).
Power Switch noise shall be Excluded.
5. Firmware & OSD
The product firmware of VS12119-1M shall have a firmware version of VSC V2.00M. Any changes/revisions
afterward shall also be pre-approved by ViewSonic in written. For VS12247-1M, its firmware shall have a built-in
frequency table for NTSC off-air TV/CATV, Closed-Caption, and with MTS implementation.
All audio/video and other output adjustments shall be performed by using an On Screen Display (OSD) via a
Remote Control Unit (RCU) in conjunction with the front panel adjustments. The following tables list the
OSD functions supported by VS12247-1M.
OSD Table for VS12247-1M
Channel Picture Audio Time Option Lock
TV SOURCE Contrast Bass Time Zone Menu language Enter Password
Auto Scan Brightness Treble Sleep Timer Transparency Change Passward
Favorite Sharpness Balance DST OSD Time Out System Lock
Show/Hide Color Sound Mode Time Format Close Caption Input Block
Channel No. Tint SPDIF Type Clock Restore Default US
Channel Label Picture Mode
DTV Signal Color Mode Audio Only RRT Setting
Zoom mode Reset RRT
3DNR
Advanced(PC
Only)
Auto (PC
Only)-
Surround
Sound
canada
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6. Remote Control Unit (RCU)
An IR remote control unit shall accompany this product along with battery. In addition, this remote control
unit shall have an operational distance of 7 meters and an operational angle of 30 degrees for both horizontal
and vertical.
Parameter Specification
Type IR; Made by Jiangsu HUITONG GROUP
Horizontal IR Beam Angle > 60 Degrees (+/-30 Degrees from center)
Vertical Beam Angle > 30 Degrees (+/-15 Degrees from center)
Range
Life Testing
(Buttons)
Remote Control maximum operating range at zero angle > 8m
Remote Control minimum operating range at zero angle < 3cm
Remote Control operating range at +/-30 degree horizontal angle > 4.5m
100,000 cycle operations at a rate of 20~30 cycle / minute without load (with battery)
Color
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7. Mechanical
The following table defines the mechanical specifications of this product for both chassis and cabinet.
Parameter Specification
Dimension (WXHXD) 530 x 432 x 220 mm
Dimension without stand (WXHXD) 530 x 394 x 68 mm
Net Weight 7.78 Kg
Gross Weight 11.02 Kg
Net weight *without* stand 6.83 Kg
Chassis Plastic Material PC+ABS
External Plastic Chassis Components Front bezel, Back Cover, Stand, Base, Lens and Button
Exterior Chassis Color/Texture/Details Refer to Figure 1- Product ID
Chassis Component’s Color Difference Refer to Figure 1A-Color Guide
Chassis Color Drift Due to UV-Light None
Molded Plastic Workmanship shall be inspected according to ViewSonic Molded
Plastic Parts Specification, VSCMPPSPEC001V1.2.
Screen Printed Parts, Bird Logo Recess Artwork shall be provided and confirmed by ViewSonic.
Rear Label A label identifying the product name, model/serial number and
FCC ID/Logo shall be placed into the rear label recess located on
the rear panel of the chassis.
Wall Mount 100mmx100mm VESA high hole (n=4), 4mm, 0.7mm
pitch×10mm long screw mounting kit not included.
(M4*10)* 4pcs
100mm
100mm
Sample Sample of textured color chips, plastic material specification,
and Material Safety Data Sheets shall be submitted to
ViewSonic prior to Mass Production Release.
In addition, all exterior surfaces shall have uniform texture/color.
Painting chromatism and define: base, stand, outer bezel and speaker: GM black rear cover-GM black.
GAP:
1. Panel spec :
Panel bucket to panel glass surface 2(+/-0.5) mm
The maximum acceptable gap between LCD panel and bezel shall be within 2.5mm.
Panel Section drawing
8. Environmental
The following table defines the operational/storage conditions of the product.
Operating Temperature
Humidity 85% non-condensing
Altitude 0 meter to +3000 meters above sea level
Storage Temperature Follow Panel spec
Humidity 85% non-condensing
Altitude 0 meter to 12,000 meters above sea level
0°C to 40°C
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3. Front Panel Function Control Description
Front
Back
8
9
AUDIOVGA INPUTHDMI INPUT
~ 100-240V 50/60Hz
ViewSonic
MENU
AC INPUT
1
10
1
2
PREV
NEXT
3
STOP
4
PAUSE
PLAY/
5
6
DISC IN
EJECT
7
SOURCE
VOL
VOL
CH
CH
POWER
11
12
13
14
CB/P
B
CR/P
Y
INPUT
2
R
LR AUDIO
OUTPUT
4
ANT. INPUT
VIDEO
CB/PBY
CR/PRCOAXIAL
OUTPUT
AUDIO
LR AUDIO
LR AUDIO
S-VIDEO
FOR
SERVICE
ONLY
DVD
VIDEO
LR
INPUT
OUTPUT
INPUT
12
AUDIOVGA INPUTHDMI INPUT
ANT. INPUT
VIDEO
COAXIAL
OUTPUT
AUDIO
LR AUDIO
S-VIDEO
INPUT
63 5
LR
78
FOR
SERVICE
ONLY
DVD
VIDEO
9
10
11
# Item Description
1 Disc slot Insert a DVD or CD to change to DVD
mode and play the disc.
2 PREV button Press to skip to the previous chapter or
track.
3 NEXT button Press to skip to the next chapter or track.
4 STOP button Press to stop disc playback.
5PLAY/PAUSE
button
6DiscIn
indicator
7 OPEN/CLOSE
Press to change to DVD mode and begin
and pause the DVD or CD playback.
When Iights, indicates a DVD or CD is
loaded into the disc slot.
Press to eject the disc in the disc slot.
button
8 IR sensor Receives signals from the remote control.
Do not block.
9 Power/Standby
indicator
Lights when your TV is plugged into a
power outlet. When your TV is on, the
indicator is blue. When your TV is in
standby mode, the indicator is red.
10 MENU button Press to open the TV menu.
11 SOURCE
button
12 Volume+/-
Press to select the video signal inputs. You
can select TV, AV, S-Video, Component,
Press to adjust the volume.
buttons
13 CH+/- buttons Press to change the channel.
14 POWER button Press to turn your TV combo on or off or
press to leave standby mode.
# Description
1ACinput
2 HDMI INPUT
3 INPUT (Y, Cr/Pr, Cb/Pb, AUDIO L
and AUDIOR)
4 AUDIO OUTPUT
5VGAPCINPUT
6 S-VIDEO, VIDEO, and L/R AUDIO INPUT
7 COAXIAL (digital audio)
8 DVD VIDEO OUTPUT
9 PC AUDIO INPUT
10 USB jack (For service only)
11 ANT.INPUT (coaxial antenna)
12 Earphone jack
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Remote
# Button
1
2TV
3
4
5
6
7
8
9
10
11
12
(power)
DVD
Number
buttons
•
MUTE
VOL +/-
MTS/SAP Press to select Stereo, Mono, or SAP
GUIDE
CC
TV MENU
,,,
Description
Press to turn your TV combo on or off or
press to leave standby mode.
PresstochangetoTVmode.
Press to change to DVD mode.
Press to enter channel numbers, DVD
chapters, or CD track numbers.
Press to view digital sub-channels. First
enter the main channel number, then press
this button, then enter the sub-channel
number.
Press to mute the sound. Press again to
restore the sound.
Press to adjust the volume.
mode.
Press to show the Electronic Program
Guide (EPG).
Press to select the closed caption mode
while in TV mode.
Press to open the on-screen TV menu.
Press to navigate the on-screen menus.
# Button Description
13 ENTER Press to confirm your selections.
14
15
16
17 DVD TITLE Press to open the DVD title menu.
18 DVD MENU Press to open the DVD menu.
19 REPEAT
20
21
22 INPUT Press to open the source input menu.
23 ZOOM Press to change the zoom mode.
24
25 RECALL Press to return to the previous channel.
26 FAVORITE Press to display your favorite channels list.
27 DISPLAY Press to display information about the
28 PICTURE Press to change the picture mode.
29 AUDIO Press to change the sound mode.
30
31
32 SETUP Press to open the DVD setup menu.
33 A-B Press to create a playback loop.
34 T.SEARCH Press to locate a point at which to start
35 RETURN Press to return to the previous menu.
36 SUBTITLE Press to change the DVD subtitle language.
(Fast
reverse)
forward)
reverse)
forward)
STOP
AUDIO
(Open)
CH /
(Play/Pause)
(slow)
Press to search backward on a DVD
or CD.
Press to search forward on a DV
(Fast
or CD.
Presstoskiptothepreviouschapteror
(Skip
track.
Press to skip to the next chapter or track.
(Skip
Press to stop DVD or CD playback.
Press to repeat a section of a DVD or CD.
Press to change the DVD audio language.
Press to eject the disc from the disc slot.
Press to change the channel.
input source.
Press to play a DVD or CD. Press again to
pause a DVD or CD.
Press to slow forward or slow reverse a
DVD.
playback.
NotavailableonsomeDVDs.
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OSD Functions
ADVANCED OPERATION — TV OSD MENU
Channel Menu — To change channels
TV Source: To select the TV signal source.
•
Auto Scan: To automatically memorize channels.
•
Favorite: To add channels to the favorite channel list.
•
Show/Hide: To manually show or hide a channel.
•
Channel No.: To select the channel.
•
Channel Label: To add a channel label.
•
DTV Signal: Display the signal strength of the Digital TV.
•
Note: The favorite channel function does not work until you have programmed
your favorite channels.
Picture Menu — To adjust picture settings
TV Mode
Picture Mode: To select the picture mode.
•
Contrast: To adjust contrast of video.
•
Brightness: To adjust luminance of video.
•
Sharpness: To adjust picture sharpness.
•
Tint: To adjust tint level.
•
Color: To adjust color.
•
Color Mode: To select color mode.
•
Advanced (PC only): To advanced adjust.
•
Zoom Mode: To select the zoom mode.
•
3DRN: To select the 3DRN function.
•
Auto (PC only): To activate the auto adjust feature for PC mode .
•
PC Mode
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Audio Menu — To adjust audio settings
PC ModeTV Mode
Sound Mode: To select the sound mode.
•
Treble: To adjust the treble.
•
Bass: To adjust bass.
•
Prefer Language: To select prefer language.
•
SPDIF Type: To select the SPDIF type PCM or RAW.
•
Surround Sound: To select the surround sound ON or OFF.
•
Audio Only: To select the audio ON or OFF.
•
Time Menu — To adjust time settings
TV Mode
O
Sleep Timer: To select the sleep time your want.
•
Time Zone: To select time zone mode.
•
DST: To select the DST ON or OFF.
•
Time Format: To select the time format 12-hour or 24-hour.
•
Clock: Display the clock time.
•
PC Mode
2007/11/01 09:00
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Option Menu — To adjust other settings
PC ModeTV Mode
Menu Language: To select the menu language.
•
Transparency: To adjust the menu transparency.
•
OSD Time Out: To adjust the display time of the OSD menu.
•
Closed Caption: To set the closed caption mode.
•
restore Default: To restore your TV combo to the factory settings.
•
Lock Menu — To setting the parental controls
Enter the password with the number buttons on the remote control (the default
password is 0000). The lock menu opens.
Change password: To change password.
•
System Lcok: To select system time ON or OFF.
•
Input Block: To block the input source.
•
US: To set US TV parental control level.
•
Canada: To set canadian parental control level.
•
RRT Setting: To set the RRT rating level.
•
Reset RRT: To reset the RRT to the default settings.
•
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ADVANCED OPERATION — DVD OSD MENU
General Setup Menu — To set general setup
-- GENERAL SETUP PAGE --
TV DISPLAY
TV OUTPUT
CAPTIONS
SCREEN SAVER
LAST MEMORY
GO TO GENERAL SETUP PAGE
TV Display: To change your TV’s display mode.
•
TV Output: To setup TV output.
•
Captions: To set the captions ON or OFF.
•
Screen Save: To set the screen save ON or OFF.
•
Last Memory: To set the last memory ON or OFF.
•
WIDE
YPbPr
OFF
ON
ON
Audio Setup Menu — To set audio setup
Speaker Setup: To set up speaker output.
•
Dolby Digital Setup: To set up dolby digital.
•
Channel Equalizer: To use the equalizer.
•
3D Processing: To set up 3D sound.
•
Video Setup Menu — To set Video setup
Sharpness: To set the sharpness level.
•
Brightness: To set the brightness level.
•
Contrast: To set the contrast level.
•
Black Level: To set the black level.
•
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Preference Menu — To set preference setup
Audio: To change the DVD audio language.
•
Subtitle: To change the DVD subtitle language.
•
Disc Menu: To change the DVD disc menu language.
•
Default: To reset the DVD player settings to the default settings.
•
Password Setup Menu — To set password setup
PW Mode: To select the PW mode ON or OFF.
•
Password: To change the password. The preset factory password is 99999.
•
Parental: To set the DVD ratings.
•
**No power lock (platform limitation)
**Press "INPUT" key on RCU for 10 seconds to do OSD lock and unlock.
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4. Circuit Description
Video:
The MSD119CL is a highly integrated controller IC for LCD/PDP DTV applications with resolutions up
to full-HD (1920 x 1080). It is configured with an integrated triple-ADC/PLL, a multi-standard TV video
and audio decoder, a motion adaptive video de-interlacer, a scaling engine, the MStarACE-3 color
engine, an advanced 2D graphics engine, a transport processor, a high-definition (HD) MPEG video
decoder, a 24-bit DSP for MPEG audio decoding, a DVI/HDCP/HDMI receiver, and a peripheral control
unit providing a variety of HDTV control functions.
The MSD119CL comprises an MPEG-2 transport processor with advanced section filtering capability,
an MPEG-2 (MP@HL profile) video decoder, a Dolby* Digital (AC-3)/MPEG layer I and II digital audio
decoder with analog audio outputs that are designed to support ATSC HD/SDTV programs while
handling ATSC CC and EPG.
Audio:
The TDA7266 is a dual bridge amplifier specially designed for TV and Portable Radio applications.
BLOCK AND APPLICATION DIAGRAM
Vcc
IN1
IN2
0.22μF
0.22μF
S-GND
PW-GND
4
7YB-TS
9
12
6ETUM
8
Vref
133
+
-
-
+
+
-
-
+
1
2
15
14
470μF 100nF
OUT1+
OUT1-
OUT2+
OUT2-
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Tuner Features:
Receiving System : Designed to cover the air channels including
digital terrestrial channels for ATSC system.
Receiving Channel : 54MHz ~ 863MHz (center freq.)
Intermediate Frequency : Digital(center) : 44 MHz
Analog(P-carrier) : 45.75MHz
Input Impedance : 75Ω, Unbalanced.
IF Output Impedance : 10Ω, Balanced.
Band Change-Over System : PLL system.
Tuning System : PLL system.
Narrow band output to be filtering by a 5.6MHz SAW filter.
Built in the additional IF amplifier with AGC circuit.
Reference Frequency the X-tal the RF block's PLL : 4MHz
Built in DC/DC Converter
Block diagram:
IF
PIN CONNECTION
1 RF AGC
2N.C
3 N.C(VT T.P)
4IF+
5IF-
6IFAGC
7 TP(TUNER IF OUT)
8SCL
9SDA
10 GND
11 B+ (5V)
12 N.C
13 AFT
14 SIF OUT
15 VIDEO OUT
RF-INPUT
VHF-High
VHF-Low
DC/DC
Converter
RF-AGC.
B+(5V)
[ MOPLL-IC ]
VT
PLL
SDA SCL
4MHz
IF OUT
44MHz
SAW-FILTER
AGC
DETECTOR
[ IF AMP-IC ]
analog
demod
SAW-FILTER
45.75MHz
VOAFTSIF
IF-AGC
IF 1
IF 2
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CPU:
The MC9S08QG4 is a member of the low-cost, high-performance HCS08 Family of 8-bit microcontroller
units (MCUs).
Block diagram:
VSS
VDD
HCS08 CORE
CPU
HCS08 SYSTEM CONTROL
RESETS AND INTERRUPTS
MODES OF OPERATION
POWER MANAGEMENT
RTI COP
IRQ LVD
USER FLASH
(MC9S08QG4 = 4096 BYTES)
USER RAM
(MC9S08QG4 = 256 BYTES)
16-MHz INTERNAL CLOCK
SOURCE (ICS)
LOW-POWER OSCILLATOR
31.25 kHz to 38.4 kHz
1 MHz to 16 MHz
VOLTAGE REGULATOR
BDC
(XOSC)
VDDA
VSSA
VREFH
VREFL
DEBUG MODULE (DBG)
8-BIT MODULO TIMER
MODULE (MTIM)
IIC MODULE (IIC)
8-BIT KEYBOARD
INTERRUPT MODULE (KBI)
ANALOG COMPARATOR
(ACMP)
10-BIT
ANALOG-TO-DIGITAL
CONVERTER (ADC)
16-BIT TIMER/PWM
MODULE (TPM)
SERIAL PERIPHERAL
INTERFACE MODULE (SPI)
SERIAL COMMUNICATIONS
INTERFACE MODULE (SCI)
EXTAL
XTAL
BKGD/MS
SCL
SDA
4
4
ACMPO
ACMP–
ACMP+
4
4
TPMCH0
TPMCH1
RxD
TxD
IRQ
TCLK
SS
MISO
MOSI
SPSCK
PTA5//IRQ/TCLK/RESET
PTA4/ACMPO/BKGD/MS
PTA3/KBIP3/SCL/ADP3
PTA2/KBIP2/SDA/ADP2
PORT A
PTA1/KBIP1/ADP1/ACMP–
PTA0/KBIP0/TPMCH0/ADP0/ACMP+
PTB7/SCL/EXTAL
PTB6/SDA/XTAL
PTB5/TPMCH1/SS
PTB4/MISO
PTB3/KBIP7/MOSI/ADP7
PORT B
PTB2/KBIP6/SPSCK/ADP6
PTB1/KBIP5/TxD/ADP5
PTB0/KBIP4/RxD/ADP4
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5. Adjusting Procedure
1. Function Test
1.1. Product
- 22” LCD TV
1.2. Test Equipment
-PC signal generator: CHROMA 2525 CARD ,CHROMA 2327 or 2329,Pioneer
DV-S969AVi.
-TV and Video signal generator.
-Color analyzer: MINOLTA CA210.
-Power meter: CP-310A or CP-320A.
-AC power supply transformer: 110V/120V ±10% 60Hz ±5%.
220V/240V±10% 50Hz ±5%.
-Digital ammeter.
1.3. Test Condition
1.Approximately 30 minutes should be allowed for warm up before proceeding.
2.Adjustments should be undertaken only on those necessary elements since most of them
have been carefully preset at the factory.
3.ESD protection is needed before adjustment.
1.4. Test Display Modes & Pattern
1.4.1 EEPROM INIT
A. Timing : 1680X1050@60Hz.
B. Pattern : Cross hatch.
C. Turn on the power and press "INPUT+ 2 + 5 + 8 + 0" on the remote control in turn to
enter Factory mode as FIG. 1.
D. Press "up" or "down" to select "Other Setting" items as FIG. 2. Press "up" or "down" to
select "Database Init" items, Press "right" to "Database Init" automatic adjustment.
E. The STARTING SETUP feature appears. Setup your TV/DVD by the owner manual.
Factory Menu
Video Quality
ADC Setting
ColorTemp Setting
Other Setting
About...
Fig. 1 Fig. 2
1.4.2 COLOR TEMPERATURE ADJUSTING
PC MODE:
A. Timing : 1680X1050@60Hz.
B. Pattern : 5-MOSAIC.
C. Set CA110 color analizer at the center of screen and along a perpendicular to the
screen at 20cm from the display.
D. Press "INPUT" one or more times to select the video mode, select "PC".
E. press "INPUT+ 2 + 5 + 8 + 0" on the remote control in turn to
enter Factory mode as FIG. 3.
F. Press “ź” key to select the “ ADC Setting” item in the factory mode and press " " to
select "ADC Auto" items, Press "right" to "ADC Setting" automatic adjustment.press
“ENTER” key, then the white balance will be auto adjusted as FIG. 4.
G. Press "OK" on the remote control to finish the "ADC Setting" automatic adjustment.
Press "OK" on the remote control to exit Factory mode.
H. Color temperature verification :
USER x=0.313±0.015 y=0.329±0.015
Factory Menu
Video Quality
ADC Setting
ColorTemp Setting
Other Setting
About...
Other Setting
Database Init
Shipment Setting
Debug Mode
White Pattern
DLC
ADC Setting For YPBPR2
R-Gain
G-Gain
B-Gain
R-offset
G-offset
B-offset
ADC Auto
off
OFF
off
ź
119
56
104
128
128
128
Fig. 3 Fig. 4
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1.4.3 Power Consumption Check ( VGA MODE )
A. TIMING: 1680X1050@60Hz
B. Pattern: 1010UPRIGHTNESS PATTERN
C. BRIGHTNESS=MAX, CONTRAST=MAX.
D. The power that each MODE consumed is shown in Chart 1.
MODE
NORMAL
Stand-by
1.4.4 Check the position of the picture displayed and phase auto adjusting (VGA MODE).
Depend on the TIMING of TIMING TABLE (TABLE 2) to switch MODE in order,
stay about 10 seconds each MODE, it can changed and stored automatically each
MODE. We can’t switch over to the next MODE until AUTO ADJUST disappears.
1.4.5 HDMI MODE FUNCTION TEST
A. DVI MODE: Depend on the TIMING of TIMING TABLE (TABLE 2 ) to check
MODE in order.
B. HDMI MODE: make sure the 480i, 480p, 576i, 576p, 720p, 1080i TIMING is right.
1.4.6 OSD FUNCTION TEST
A. Time: 1680X1050@60Hz
B. Pattern: 16*12 pane
C. Make sure that Each FUNCTION has one right action.
1.4.7 YPbPr, S-VIDEO, AV, TV, DTV’S FUNCTION TEST
A. Input YPbPr, S-VIDEO, AV , TV, signal and check.
B. Input NTSC Frequency Table(-M) (TABLE 1) for TV channel.
C. Under YPbPr MODE, Make sure the 408i, 480P, 576i, 576p, 720P, 1080i is right.
MAX POWER COMSUMED POWER LED COLOR
120W(max) BLUE
1W (max) AMBER
Chart 1
1.4.8 AUDIO FUNCTION TEST
A. Audio input includes PC AUDIO IN, S-VIDEO/AV AUDIO IN and YPbPr AUDIO
IN.
B. Under PC MODE, input PC AUDIO signal, checks whether the action of AUDIO IN
is right.
C. Under S-VIDEO/AV MODE, input L/R AUDIO signal, checks whether the action of
AUDIO IN is right.
D. Under YPbPr MODE, input L/R AUDIO signal, checks whether the action of
AUDIO IN is right.
E. Under HDMI MODE, checks whether the action of AUDIO IN is right.
F. AUDIO OUT FUNCTION TEST: Under all patterns except PC,HDMI,YPbPr pattern,
The Audio output meets active extra speaker, examines whether the extra speaker
makes the sound.
1.4.9 PC AUDIO FUNCTION TEST
Under PC MODE, input PC AUDIO signal, determines whether the action of INT
SPEAKER output is right.
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TV Frequency Table:
NTSC Frequency Table(-M) (TABLE 1)
Channel
Designation
Channel
Number
2 55.25 55.25 44 651.25 343.25 86 595.25
3 61.25 61.25 45 657.25 349.25 87 601.25
4 67.25 67.25 46 663.25 355.25 88 607.25
5 77.25 77.25 47 669.25 361.25 89 613.25
6 83.25 83.25 48 675.25 367.25 90 619.25
7 175.25 175.25 49 681.25 373.25 91 625.25
8 181.25 181.25 50 687.25 379.25 92 631.25
9 187.25 187.25 51 693.25 385.25 93 637.25
10 193.25 193.25 52 699.25 391.25 94 643.25
11 199.25 199.25 53 705.25 397.25 95 91.25
12 205.25 205.25 54 711.25 403.25 96 97.25
13 211.25 211.25 55 717.25 409.25 97 103.25
14 471.25 121.25 56 723.25 415.25 98 109.25
15 477.25 127.25 57 729.25 421.25 99 115.25
16 483.25 133.25 58 735.25 427.25 100 649.25
17 489.25 139.25 59 741.25 433.25 101 655.25
18 495.25 145.25 60 747.25 439.25 102 661.25
19 501.25 151.25 61 753.25 445.25 103 667.25
20 507.25 157.25 62 759.25 451.25 104 673.25
21 513.25 163.25 63 765.25 457.25 105 679.25
22 519.25 169.25 64 771.25 463.25 106 685.25
23 525.25 217.25 65 777.25 469.25 107 691.25
24 531.25 223.25 66 783.25 475.25 108 697.25
25 537.25 229.25 67 789.25 481.25 109 703.25
26 543.25 235.25 68 795.25 487.25 110 709.25
27 549.25 241.25 69 801.25 493.25 111 715.25
28 555.25 247.25 70 499.25 112 721.25
29 561.25 253.25 71 505.25 113 727.25
30 567.25 259.25 72 511.25 114 733.25
31 573.25 265.25 73 517.25 115 739.25
32 579.25 271.25 74 523.25 116 745.25
33 585.25 277.25 75 529.25 117 751.25
34 591.25 283.25 76 535.25 118 757.25
35 597.25 289.25 77 541.25 119 763.25
36 603.25 295.25 78 547.25 120 769.25
37 609.25 301.25 79 553.25 121 775.25
38 615.25 307.25 80 559.25 122 781.25
39 621.25 313.25 81 565.25 123 787.25
40 627.25 319.25 82 571.25 124 793.25
41 633.25 325.25 83 577.25 125 799.25
42 639.25 331.25 84 583.25
43 645.25 337.25 85 589.25
Picture Carrier
Frequency(MHz)
AIR
CABLE
(STD)
Channel
Designation
Channel
Number
Picture Carrier
Frequency(MHz)
AIR
CABLE
(STD)
Channel
Designation
Channel
Number
Picture Carrier
Frequency(MHz)
AIR
CABLE
(STD)
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1.5. TV receiving test:
1.5.1 TV SIGNAL TEST ITEM
CENTRALISM TRANSMITTING SIGNAL CHECK CONTENT
CHANNEL
ORDER
CHANNEL 2
CHANNEL 6
CHANNEL 7
CHANNEL 13
CHANNEL 14
CHANNEL 36
CHANNEL 69
TV TEST METHOD
A.CHANNEL2 Examines sound by ear, whether the sound does have mechanical resonation and the
electrical unusual sound, and image to sound disturbance.
B.CHANNEL6: Check sound and picture.
C.CHANNEL7: Examines whether the sound does receive the image disturbance, Judgment basis:
Whether there is unusual sound, input signal LEVEL<=36dBu,and STEREO SENSITIVITY is normal.
D.CHANNEL13: Under main/sub/main-sub mode, check sub function.
E.CHANNEL14: Examines whether the sound does receive the image disturbance, Judgment basis:
Whether there is unusual sound.
F. CHANNEL 36:Check T1 of close-caption. Input signal level<=45dBu.
G.CHANNEL 69: Adjustment attenuator, If the critical point of the change of the image signal to noise
ratio is under LEVEL<=60dBu, regards as normally.
FREQUENCY
(MHz)
55.25 MONO SCOPE SWEEP TONE -10 ELECTRIC
83.25 COLOR BAR 400Hz -10 SOUND ,PICTURE
175.25 Full White (100
211.25 STAIR DUAL -10 SUB FUNCTION
471.25 MULTIBURST MONO -16 IMAGE AND SOUND
603.25 MULTIBURST MONO -10 TEST Close-caption T1
801.25 MONO SCOPE MONO(1KHz) -10 NOISE LIMMITTED
PATTERN SOUND P/S(dB)
IRE)
SET CONTENT
CONTENT
ABNORMITY SOUND
STEREO -10 STERO FUNCTION
DISTURB
FUNCTION
SENSITIVITY
CHECK
PRODUCTS OUTPUT CHECK ITEM.
A. The same as " CENTRALISM TRANSMITTING SIGNAL CHECK CONTENT"
B. saturation TEST, inputs the TV signal, the input signal LEVEL establishment most greatly is
90dBu,check whether CONTRAST of the image is normal; Whether appears the disturbance
phenomenon.
C.AFT CHECK,
(1) The frequency of the input TV signal is 211.25MHz (CH13), after confirmed the TV set receives
this signal, closure radio station; Then set frequency of the TV signal generator to be 212.25MHz,
turn on the TV set and check whether the TV set receives the signal of CH13.
(2). The frequency of the input TV signal is 211.25MHz (CH13), after confirmed the TV set receives
this signal, closure radio station; Then set frequency of the TV signal generator to be 212.00MHz,
turn on the TV set and check whether the TV set receives the signal of CH13.
(3). After all of FUNCTION TEST completed, we must erase all saved changes again and restore the
factory defaults.
TIMING TABLE (FACTORY PRESET MODE) (TABLE 2)
Mode Resolution
640x480@60 Hz 31.469 59.940 25.175
VGA
SVGA
XGA
XGA
WXGA 1440x900@60Hz 29.830 60.019 31.500
UXGA 1680x1050@60Hz 65.290 59.950 146.250
640x480@72 Hz 37.861 72.809 31.500
640x480@75Hz 37.500 75.000 31.500
800x600@56Hz 35.156 56.250 36.000
800x600@60Hz 37.879 60.317 40.000
800x600@72Hz 48.077 72.188 50.000
800x600@75Hz 46.875 75.000 49.500
1024x768@60Hz 48.363 60.004 65.000
1024x768@70Hz 56.467 70.069 75.000
1024x768@75Hz 60.023 75.029 78.750
1280x1024@60Hz 63.981 60.020 108.000
1280x1024@75Hz 79.974 75.024 135.000
Horizontal
Frequency
Vertical
Frequency
Pixel
Frequency
)zHM()zH()zHk(
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2. Firmware Upgrade Procedure
When you receive the returned LCD TV, please check whether the firmware version is the
latest. If not, please do the following procedures to upgrade it to the latest version.
2.1. Equipment Needed
- N2201W-M LCD TV
- Fixture for Firmware Upgrade
- VGA Cable
- PC (Personal Computer)
- Firmware Upgrade Program
- One additional LCD TV for checking the program execution
2.2.Connection PC to the TV set by the tool as the follow picture (FIG. 1~FIG. 4)
Caution: The D_SUB cable must be 15 pin, and the TV set must be AC ON
Fig. 1 Fig. 2
Fig. 3 Fig. 4
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2.3. Start the ISP
2.3.1. Run "MStar ISP Utility 4.4.0.exe"
Fig. 1
2.3.2. Click "connect", if it clue to "Device Type
is MX25L1605A" mean connector of Jig
fixture OK, if it clue to "Can't Entry ISP
Mode!!", please secure connection of Jig
firmly, click "connect", untile clue to
"Device Type is MX25L1605A".
2.3.5. Click "Config" to enter next interface,
click "I2C Speed SetTing" to 70KHz.
Fig. 5
2.3.6. Sure upgrade file read, Click "Auto" to
enter next interface. select "Read File"
"Erase Device" "File Area" "Blank"
"Program" "Verify" "Exit ISP", Click "Run".
Fig. 2
2.3.3. Click "Device" to enter next interface,
select "WP Pin pull to high during ISP".
Fig. 3
2.3.4. Click "Read" to enter next interface, click
"Read" to select upgrade file.
Fig. 6
2.3.7. Enter upgrade status.
Fig. 7
2.3.8. If it clue to "Pass" , it mean upgrade
succeed.
2.3.9. If it clue to "Verify Message Error",
please return to setp 6 Click "Run"
upgrade again, or return to setp 2
upgrade again.
Fig. 4
Fig. 8
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2.4. Re-Write For DVD Firmware
2.4.1.
2.4.2.
2.4.3.
2.4.4.
2.4.5.
2.4.6.
2.4.7.
2.4.8.
Turn on the power, and set the DVD mode.
Confirm that the "OPEN" will be appeared on the screen.
Insert the Up-Date Disc. Automatic read will start and "Upgrade file detected, Upgrade?
Press PLAY key to start" will be displayed on the screen.
Press PLAY button on the remocon to start upgrade.
NOTE: Do not turn off the unit on the way or operate the keys on the unit and remocon.
Up-Date error will happen and can not be done with the Up-Date of Up-Date Disc.
After the Up-Date, Logo screen will appear.
Unplug the AC cord, then plug it in.
CHECK FOR THE FIRMWARE VERSION
Turn on the power, and set the DVD mode.
Press "SETUP" "SUBTITLE" "1" "2" "3" button on the remote control. Firmware version will
be displayed on the top bottom of the screen.
2.4.9.
080620 14:14 SASn 4
When the changed version displays, the Re-write will be completed.
Turn off the power.
080620 14:14 SASn 4
Fixed
Release date (Example: 2008.6.20, 14:14)
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