Working principle analysis of the unit……………………………….………….………….
Block diagram…………………………………..………………………………….…………
IC block diagram………………………………………………………………………..……
Wiring diagram ……………………………………………………………..……………...
Troubleshooting………………………………………………………………………..……
Schematic diagram …………………………………………………………………………
APPENDIX-A: Main assembly list
APPENDIX-B: Exploded view
1
3
6
7
8
17
18
24
Note: This maintenance manual is intended only for the reference of the maintenance people.
Please pay attention to the following points before carrying out the maintenance work.
Safety precautions
Please read the “Points for attention for the Maintenance & Repair of PDP” and “Criterion for
Identifying the Defects on Screen” as below, before inspecting and adjusting the TV set.
1. “Points for attention for the Maintenance & Repair of PDP”
To avoid possible danger, damage or jeopardy to health and to prevent PDP screen from new
damage, the maintenance people must read the following carefully. If they ignore the following
warnings, there will be deathful risks:
1.1 Screens vary from one model to another and therefore not interchangeable. Be sure to use the
same type of screen in the replacement.
1.2 The operation voltage is approximately 350V for PDP module (including screen, driving circuit,
logic circuit and power module). If you want to conduct maintenance work on PDP module when the
set is in normal operation or just after the power is off, you must take proper measures to avoid
electric shock and never have direct contact or touch with the circuitry of the working module or
metal parts. That’s because within a short time relatively high voltage still remains on the capacitor
of the driving part even after the power is off. Make sure to begin relevant maintenance operation at
least one minute after the power is off.
1.3 Don’t apply on the module any power supply that is higher than the specification. If the power
supply used deviates from the value given in the specification, there might be a possibility of leading
to fire or damage to the module.
1.4 Never have operation or mounting work under unsuitable environment such as areas in the
vicinity of water – bathroom, laundry, water chute of kitchen – sources of fire, heat-radiation parts or
direct exposure to sunlight. Otherwise there will be kickbacks.
1.5 In case foreign substances such as water, liquid, metal slices or others fall into the module
carelessly power must be cut off immediately. Keep the module as it is and do not move anything on
the module. Otherwise it might be possible to contact the high voltage or cause shock short circuit
so that it may lead to fire or electric shock.
1.6 If there is smoke, abnormal smell or sound from the module, please cut the power off
immediately. Likewise in case the screen doesn’t work when the power is on or during the operation,
please also cut off the power at once. No more operation in this case.
1.7 Do not remove or plug its connection wire when the module is in operation or right after the
power is off. That’s because there remains a relatively high voltage on the capacitor of the driving
circuit. If there is a need to remove or plug in the connection wire, please wait at least one minute
after the power is off.
1.8 Considering the module has a glass faceplate, please avoid extrusion by external force lest it
should cause glass breakage that may get people injured. Two people are needed in cooperation to
move this module lest contingency takes place.
1.9 The complete TV set is designed on the basis of full consideration of thermal dissipation by
convection, with the round hole on the top for heat emission. To avoid overheat, please do not have
any covering on the hole during normal operation and never put it in the place where the space is
narrow and in bad ventilation.
1.10 There is quite a number of circuits in PDP that are integrated ones. Please be on guard against
1
static electricity. During maintenance operation be sure to cover yourself with anti-static bag and
before operation make sure to have it sufficiently grounded.
1.11 There are a big number of connection wires distributed around the screen. Please take care
not to touch or scuff them during maintenance or removing the screen, because once they are
damaged the screen will fail to work and it’s not possible to repair it.
1.12 Connector for the circuit board of the screen part is relatively fine and delicate. Please take
care in the replacement operation lest it should get damaged.
1.13 Special care must be taken during transportation and handling because strenuous vibration
could lead to screen glass breakage or damage on the driving circuitry. Be sure to use a strong
outer case to pack it up before transportation or handling.
1.14 Please put it for storage in an environment in which the conditions are under control so as to
prevent the temperature and humidity from exceeding the scope stipulated in the specification. For
prolonged storage please cover it with anti-moisture bag and have them piled and stored in one
place. The environmental conditions are tabulated as below:
Temperature Scope for operation 0~50centigrade
Scope for storage -15~60centigrade
Humidity Scope for operation 20%~80%
Scope for storage 20%~80%
1.15 If a fixed picture is displayed for a long time, difference in its brightness and color may occur
compared with movable pictures. But it doesn’t show any problem and the reason is that there is
reduced density of fluorescent powder in the former. On the other hand, even if changes take place
in the picture, it can keep its brightness for a period of time (several minutes). It’s a feature inherent
with plasma and it’s not abnormal. However please try as much as possible to avoid showing a still
picture of high brightness for a long time during operation.
1.16 As a digitalized display devise, this module is provided with error diffusion technology and the
gray scale and false enhancement of contour can be displayed by reusing of sub-field. As compared
with cathode ray tube, it can be found in the moving picture that at the brim of the face of a person
there are some wrong colors.
1.17 During the display of graph (indicating the gradual change in brightness horizontally or
vertically) resulting from gray scale test it can be found that the brightness for the two adjacent
levels is uneven. This is caused by the reuse of sub-field, the display of load rectification and the
electrolysis.
1.18 The screen front plate is of glass. Please make sure that the screen has been put in place
during erection. If it is not in place before the erection begins it may lead to screen crack or
breakage.
1.19 Make sure the screw used in the mounting of the screen is of the original specs lest it should
cause damage to the screen due to mismatch. Special care should be taken not to use too long or
too big screw.
1.20 Care must be taken to guard against dust during assembling or dismantling, especially to avoid
dirt from falling in between the screen and the glass lest it should harm the receiving and viewing
effect.
1.21 There is piece of insulator stuck on the rear chassis corresponding to the power supply board.
It is used to isolate the cool part from the hot part. Please take care to keep it intact lest it should
2
become a potential safety trouble.
1.22 In addition to plasma screen, the glass is a part of high value. It has such functions as
anti-radiation, adjustment of color temperature etc. Please handle it carefully.
Alignment instructions
1. Test equipment
VG-848 (Signal generator)
CA100 (White balancer)
2. The alignment flow chart (see below figure)
Production of CPU board and analog board on the line.
Check DDC, HDCP KEY and FLASH
Check CPU board and analog board
Combined test for general assembly
Connect to central signal source; check if various
TV functions (station skipping, modulate quantity
control etc), check if the output of earphone and
speaker are normal.
Input AV/S signal and HDTV signal; check various
functions under AV/S terminal
Input VGA signal and check if display is normal in
the state of PC and various functions (analog
quantity control, line/field center etc.)
Input HDMI signal and check if display is normal in
the state of HDMI and various functions (sound
and analog quantity control).
Preset ex-factory
3
Check accessories and then packing
Fig-1 adjustment flow-chart
3. The unit adjustment
Connect all the boards according the wiring diagram, turn on the power and check if the display is
normal.
3.1 The method of entering factory menu
Enter factory menu method: press the INPUT→ 2→ 5→8→0 buttons one by one on the remote
control to factory menu. Press the MENU button to select item. Press the DISPLAY button to exit the
factory menu.
3.2 EEPROM initialization and back light adjustment
Enter the firs page of factory menu, adjust item OPTION-1 to 9, OPTION-2 to 5, select the
EEPROM initial after, press the VOL+ button, then display the DOING, still the DOING disappear
and turn off the unit.
Note: option-1 and option-2 function as follows:
Option-1 Option-2
Bit6 0: normal TV mode
1: hotel TV mode
Bit5 0: TV/AV multi-system
1: TV/AV NTSC system
Bit4 0:fast search station
1:slow search station
Bit3 0: no memory function after power off for 10s
1: memory function after power off for 10s
Bit2,1 00: STANDBY
01: turn on
10: memory function of turn on
Bit0 0: without LOGO
1: With LOGO
3.3 HDMI channel adjustment
Input the VG-848 TIME854(800X600/60Hz) and PATTERN920 8-LEVEL gray signal, enter the
factory menu2(white balance adjustment menu), adjust the second step and the seventh step.
Adjust R-OFFSET, G-OFFSET and B-OFFSET item, still the second step color coordinate to (285,
293). Adjust R-GAIN, G-GAIN and B-GAIN item, still the seventh step color coordinate to (285, 293).
Repeat adjustment R-OFFSET, G-OFFSET and B-OFFSET item and R-GAIN, G-GAIN and B-GAIN
item, still two step gray to (285, 293).
Note: R-OFFSET, G-OFFSET and B-OFFSET values must be an item value to 128 at least; R-GAIN,
G-GAIN and B-GAIN values must be an item value to 255 at least.
3.4 VGA channel adjustment
3.4.1 mode pre-set
Input the VGA signal of VG-848 (PATTERN 980:1 dot ON/OFF), select the TIME877 (720x400/70Hz)
0:close HDMI hot-plug function
1:open HDMI hot-plug function
0:only have the first two pages of factory menu
1:all pages of factory menu
0:have GAMMA correction
1:no GAMMA correction
0:no signal noise wave of TV
1:no signal blue screen of TV
00:complexion correction (OFF)
01: complexion correction (WEAK)
10: complexion correction (MIDDLE)
11: complexion correction (STRONG)
0: Video and Graphic channel white balance no share
1: Video and Graphic channel white balance share
4
signal, press auto-adjust button to all screen or adjust PC settings menu to auto correction.
Separate auto adjust for TIME885 (640x480/60Hz) and TIME854 (800x600/60Hz).
3.4.2 VGA channel auto color adjustment
Input the VG-848 TIME854(800x600/60Hz) and PATTERN920(GRAY 8 STEP(H)), enter the factory
menu1, select the AUTO COLOR after, press the VOL+ button to select AUTO COLOR.
3.5 HDTV channel adjustment
Input the VG-848 TIME972(1080i/60Hz) and PATTERN976(64 GRAY & Color), enter the factory
menu1, select the AUTO COLOR after, press the VOL+ button to select AUTO COLOR.
4. Performance check
4.1 TV function
Input center source signal to RF-TV terminal, check if the channel is leak for auto searching.
4.2 AV/S and HDTV terminal
Input AV/S and HDTV signal, check if the signal is normal.
4.3 VGA terminal
Input 640 x 480 @60Hz VGA format signal, check if the signal is normal.
4.4 HDMI terminal
Separate input HDMI and DVI signal; check the picture and sound is normal, check if the HDCP
function is normal.
4.5 check the sound channel
Check the speaker and headphone of each channel.
4.6 ex-factory setting
Enter the first page of factory menu, select the factory out after, press the VOL+ button to display
“doing”, then “doing” disappear while it can auto ex-factory setting.
5
Working principle analysis of the unit
The RF1 via integrative tuner TUNER1 after, the FBAS VIDEO1 and SIF1 is generated. Video
signal of VIDEO1, AV1/S, AV2 sent to N7(TVP5160) as the main picture signal. The signal via N7
switch selection after, one way is AV OUT; another way sent 8-bit ITU-R656 format signal to N10
(FLI2310) non-interlaced processing, then sent 24bit YUV signal to main processing control chip
N15 (GM1501/1601).
The RF2 via integrative tuner TUNER2 after, the FBAS VIDEO2 and SIF2 is generated. Video
signal of VIDEO2,AV1/S,AV2 sent N8 (TVP5147) to decode as sub-picture signal. The signal via N8
decode after, it sent 8-bit ITU-R656 format signal to main processing control chip N15
(GM1501/1601).
Two ways YPBPR signal via HDTV switch N39(PI5V330) selection after, it sent to RGB switch
device N4(PI5V330) switch selection with RGB signal from VGA interface, then it sent to
GM1501/1601.
The HDMI via receiver N34(MST3383MB) processing after, it output RGB signal of 24bit to
GM1501/1601.
They sent to GM1501/1601 picture processing, therein YPBPB or RGB to A/D conversion after, it
and other three signal are switched selection and digital display processing, it include OSD,
GAMMA correction, brightness and contrast processing, then LVDS conversion to PDP panel
display.
The SIF1 of tuner1, SIF2 of tuner2 and audio signal of AV1/S, AV2 separate sent to audio processor
NA3(MSP3420).
The HDMI via chip N34(MST3383MB) decode to digital audio, after N26(CS4334) D/A conversion, it
audio and the audio signal of VGA/DVI sent to N44(HEF4052) switch selection, then sent to
MSP3420.
The audio of two YPBPR and VGA via switch conversion N42(HEF4052) to MSP3420 too.
The stereo of the SIF1 and SIF2 with other four ways audio switch conversion selection to volume
control and audio processing. One way output right/left channel audio of main-picture, the signal
sent SRS processing NA5 (M62494) to SRS sound stereo processing. It via sound amplifier
NA6(MP7722) to speaker; one way output right/left channel audio of sub-picture, it sent to earphone,
another way is AV OUT R/L output.
The work of whole unit is controlled by MCU, which includes GM1501/1601.
6
A
Block diagarm
B
C
D
12345678
L/R_VGA
L/R_YPbPr1
L/R_YPbPr2
N42
YUV_SW
TC4052
YUV/USB
L/R_USB
Audio Switch
N44
TC4052
L/R_HDMI
L/R_AV1
L/R_AV2
Audio Switch
VGA/HDMI_SW
SIF
ANA_IN1
SC2_L/R
SC1_L/R
ANA_IN2
Audio Processor
MSP3420G
SC3_L/R
SC4_L/R
SC2_OUT
NA3
DACM_L/R
AUDIO OUT
HDMI
EDID
24C02
Tuner 1
Tuner 2
HDCP KEY
24C04
AV IN 1
AV IN 1
AV IN 2
AV IN 2
V OUT
MST3383
N34
HDMI RX
N39
YPbPr 2
CBT3257C
VGA
YPbPr 1
EDID
24C02
HDTV Switch
YUV_SW
OPTION
Media Player
N7
N10
TVP5160
FLI2310
Video Decoder
Deinterlacer
(USB)
Video Decoder
TVP5147
N8
SC1_OUT
CBT3257C
YUV/USB
YUV/VGA
HDTV Switch
Y Pb/Cb Pr/Cr
CBT3257C
RGB Switch
R G B
Hs Vs
SN74AHC14
N4
TDA7053AT
Head Phone
AMP
HP_SW
NA7
M62494FP
NA5SRS
Audio AMP
MP7722
NA5
NA6
N15
GM1601/GM1501
EEPROM
LCD TV Controller
Y Pb/Cb Pr/Cr
R G B
Hs Vs
Frash/ROM
Power_ON,IR,KeyA,KeyB,Led1,Led2
Mute,HP_SW,VGA_CAB,DVI_CAB
YUV/VGA,YUV_SW,YUV/USB
Frame Buffer
DDR
Title
SizeA3Date:19-May-2006
File:G:\\..\PH42R6BLOCK.Sch
Number
邱杰的文件Drawn By:
PH42R6 BLOCK DIAGRAM
Power Supply
Power_ON,+5V_STB,VCC,VBL
PANEL
7654321
Sheet of
Revision
Ver 1.0
yyc
A
B
C
D
8
7
IC block diagram
1.MSP3420
The MSP 34x0G family of single-chip Multistandard Sound Processors covers the sound
processing of all analog TV-Standards worldwide, as well as the NICAM digital sound standards.
The full TV sound processing, starting with analog sound IF signal-in, down to processed analog
AF-out, is performed on a single chip. Figure 1–1 shows a simplified functional block diagram of the
MSP 34x0G.
This new generation of TV sound processing ICs now includes versions for processing the
multichannel television sound (MTS) signal conforming to the standard recommended by the
Broadcast Television Systems Committee (BTSC). The DBX noise reduction, or alternatively,
Micronas Noise Reduction (MNR) is performed alignment free.
Other processed standards are the Japanese FM-FM multiplex standard (EIA-J) and the FM Stereo
Radio standard.
Current ICs have to perform adjustment procedures in order to achieve good stereo separation for
BTSC and EIA-J. The MSP 34x0G has optimum stereo performance without any adjustments.
All MSP 34xxG versions are pin compatible to the MSP 34xxD. Only minor modifications are
necessary to adapt a MSP34xxD controlling software to the MSP 34xxG. The MSP 34x0G further
simplifies controlling software. Standard selection requires a single I2C transmission only.
The MSP 34x0G has built-in automatic functions: The IC is able to detect the actual sound standard
automatically (Automatic Standard Detection). Furthermore, pilot levels and identification signals
can be evaluated internally with subsequent switching between mono/ stereo/bilingual; no I2C
interaction is necessary (Automatic Sound Selection).
The MSP 34x0G can handle very high FM deviations even in conjunction with NICAM processing.
This is especially important for the introduction of NICAM in China.
The ICs are produced in submicron CMOS technology. The MSP 34x0G is available in the following
packages: PLCC68 (not intended for new design), PSDIP64, PSDIP52, PQFP80, and PLQFP64.
8
Fig. 1–1: Simplified functional block diagram of the MSP 34x0G
9
2. TVP5160
The TVP5160 device is a high quality; digital video decoder that digitizes and decodes all popular
baseband analog video formats into digital component video. The TVP5160 decoder supports the
A/D conversion of component YPbPr and RGB (SCART) signals, as well as the A/D conversion and
decoding of NTSC, PAL, and SECAM composite and S-Video into component YCbCr. Additionally,
component progressive signals can be digitized. The chip includes two 11-bit, 60-MSPS, A/D
converters (ADCs). Prior to each ADC, each analog channel contains an analog circuit, which
clamps the input to a reference voltage and applies a programmable gain and offset. A total of 12
video input terminals can be configured to a combination of YPbPr, RGB, CVBS,and S-Video video
inputs.
Progressive component signals are sampled at 2x clock frequency (54 MHz) and are then
decimated to the 1x rate. In SCART mode the component inputs and the CVBS inputs are sampled
at 54 MHz alternately, then decimated to the 1x rate. Composite or S-Video signals are sampled at
4x the ITU-R BT.601 clock frequency (54 MHz), line-locked for correct pixel alignment, and are then
decimated to the 1x rate. CVBS decoding utilizes advanced 3D Y/C filtering and 2-dimensional
complementary 5-line adaptive comb filtering for both the luma and chroma data paths to reduce
both cross-luma and cross-chroma artifacts. 3D Y/C color separation may be used on both PAL and
NTSC video signals. A chroma trap filter is also available. On CVBS and Y/C inputs, the user can
control video characteristics such as hue, contrast, brightness, and saturation via an I2C host port
interface. Furthermore, luma peaking with programmable gain is included, as well as a patented
color transient improvement (CTI) circuit. Attenuation at higher frequencies or asymmetrical color
subcarrier sidebands are compensated using the IF compensation block. Frame adaptive noise
reduction may be applied to reduce temporal noise on CVBS, S-Video, or component inputs.
3D noise reduction and 3D Y/C separation may be used at the same time or independently.
The TVP5160 decoder utilizes Texas Instruments’ patented technology for locking to weak, noisy,
or unstable signals and can auto-detect between broadcast quality and VCR-style (nonstandard)
video sources.
The TVP5160 decoder generates synchronization, blanking, field, active video window, horizontal
and vertical syncs, clock, genlock (for downstream video encoder synchronization), host CPU
interrupt and programmable logic I/O signals, in addition to digital video outputs.
The TVP5160 decoder includes methods for advanced vertical blanking interval (VBI) data retrieval.
The VBI data processor (VDP) slices and performs error checking on teletext, closed caption, and
other VBI data. A built-in FIFO stores up to 11 lines of teletext data, and, with proper host port
synchronization, full-screen teletext retrieval is possible. The TVP5160 decoder can pass through
the output formatter 2x sampled raw Luma data for host-based VBI processing.
Digital RGB overlay can be synchronously switched with any video input, with all signals being
oversampled at 4x the pixel rate.
10
INTERNAL BLOCK DIAGRAM:
11
3. MP7722
The MP7722 is a stereo 20W Class D Audio Amplifier. It utilizes a single ended output structure
capable of delivering 2x20W into 4Ω speakers. MPS Class D Audio Amplifiers exhibit the high
fidelity of a Class A/B amplifier at efficiencies greater than 90%. The circuit is based on the MPS’
proprietary variable frequency topology that delivers low distortion, fast response time and operates
on a single power supply.
TYPICAL APPLICATION
:
12
4. MST3383MB
The MST3383MB integrates the HDMI compliant receiver for enabling advanced digital display
devices such as digital TVs, plasma displays, LCD TVs and projectors to receive and display.
Compliant with the HDMI 1.0 specification, the MST3383MB enables consumer electronic devices
to receive uncompressed, high quality, digital audio and video HD content over a single, low-cost
HDMI cable. The MST3383MB is available in a 128-pin PQFP package.
FUNCTIONAL DESCRIPTION
DVI/HDMI Interface
The MST3383MB integrates an HDMI compliant receiver and enables a high quality and secure
delivery of digital video and audio. The HDMI link input supports up to 170 MHz pixel rate. With the
HDMI input and signal detection, the MST3383MB provides a high-performance solution for up to
1080p for video and 1600x1200 (UXGA) for monitor applications. The MST3383MB’s HDMI
receiver is fully backward compatible to DVI 1.0 and HDCP 1.0.
MCU Interface
The MST3383MB provides 2-wire serial bus for interfacing with an MCU. It detects active inputs for
both on-line and off-line operations. During on-line operation, the MST3383MB also provides
polarity and period count information of active input’s DE signals. The MCU can easily adjust the
input mode and switch to active input properly.
Color Space Conversion
The MST3383MB supports all general color space conversions such as RGB to YUV or RGB to
YCbCr using parameters programmable by 2-wire serial bus.
Digital Video Output Formatting
The MST3383MB can output digital data in the following configurations:
. 24-bit 4:4:4 YCbCr/RGB output formats
. 16-bit 4:2:2 YCbCr output formats (ITU.601)
. 8-bit 4:2:2 YCbCr output formats (ITU.656)
. Channel swap
. MSB/LSB swap
Audio Stream S/PDIF port output is supported to enable PCM, Dolby Digital, DTS with sample rates
of 32~48 kHz and a sample size of 16~24 bits.
Audio Serial bus is supported to enable 2-channel PCM audio with sample rates of 32~192 kHz and
a sample size of 16~24 bits.
13
5.GM1601/GM1501
The gm1601H is a dual channel graphics and video processing IC for Liquid Crystal Display (LCD)
monitors and televisions incorporating Picture in Picture, up to WUXGA output resolutions. The
gm1601H provides all key IC functions required for image capture, processing and display timing
control. On-chip functions include a high-speed triple-ADC and PLL, Ultra-Reliable DVI® receiver,
high quality zoom and shrink scaling engines, Motion Adaptive De-Interlacing (MADI), Low Angle
Diagonal Interpolation (LADI), an on-screen display (OSD) controller, a 100MHz on-chip X186
micro-controller (OCM), and a selectable double wide TTL or dual channel LVDS transmitter for
interface to displays. With all these functions integrated onto a single device, the gm1601H
eliminates the need for several system components, simplifying the design and reducing the cost of
high-end multimedia LCD monitors and televisions while maintaining a high degree of flexibility and
quality. The gm1601H is available in two silicon revisions – “BD” and “CF”. GM1601H-CF is a
backwards-compatible addition that incorporates some functional and quality improvements.
Applliicattiions
Multi-media LCD monitors up to WUXGA resolutions
LCD, PDP and Rear Projection TV at WXGA, UXGA, WUXGA and HD(720P & 1080P)
resolutions
GM1601H Systtem Desiign Examplle
Figure 2 below shows a typical high-resolution multi-media LCD monitor/TV system based on the
gm1601H. Designs based on the gm1601H have reduced system cost, simplified hardware and
firmware design and increased reliability because only a minimal number of components are
required in the system.
Figure 2. gm1601H System Design Example
14
6. FLI2310
The FLI230x and FLI2310 are highly integrated digital video format converters for DTV and DVD
applications using patented deinterlacing and post processing algorithms from Faroudja
Laboratories, coupled with highly flexible scaling, a wide variety of aspect ratio conversions, and
other special video enhancing features to produce the highest quality image.
6.1 Inputs
Input all industry standard and non-standard video resolutions, including 480i (NTSC), 576i
(PAL/SECAM), 480p, 720p, 1080i, and VGA to XGA
Digital input, 8-bit Y/Cr/Cb (ITU-R BT656), 8-bit Y/Pr/Pb, 16-bit Y Cr/Cb (ITU-R BT601), 24-bit
RGB, YCrCb, YPrPb
Input pixel rate up to 75MHz maximum
6.2 Outputs
Output resolutions include 480p, 576i, 576p, 720p, 1080i, 1080p, and VGA to SXGA
Interlaced or Progressive output
In the FLI230x, the output can be either analog YUV/RGB (through the integrated 10-bit DAC),
or digital 24-bit RGB, YCrCb, YPrPb (4:4:4), or digital 16/20-bit Y Cr/Cb (4:2:2)
The FLI2301 can provide 525P/625P Macrovision compliant analog output
In the FLI2310, digital output of 24-bit RGB, YCrCb, YPrPb (4:4:4), or 16/20-bit Y Cr/Cb (4:2:2)
are available
Output pixel rate up to 150 MHz maximum
6.3 Formats
Input color manipulation matrix supports all color spaces: RGB, YPrPb, 4:4:4 YCrCb, 4:2:2
YCr/Cb, ITU-R BT656, ITU-R BT601
Output supports analog RGB, YPrPb, and YCrCb in the FLI230x; and digital RGB, YPrPb, 4:4:4
Motion Adaptive Noise Reduction – Improves picture quality for off-air material.
Cross Color Suppressor (CCS) - Removes cross color artifacts in composite video signals due
to poor Y/C separation in standard 2-D video decoders, eliminating the need for expensive 3-D
video decoders.
6.6 Deinterlacing
Per-pixel Motion Adaptive Deinterlacing
Patented FilmMode Processing - Used for proper de-interlacing of 3:2 and 2:2 pulldown
material.
Edit Correction - Film content is continuously monitored for any break in sequence caused by
“bad edits” and quickly compensates for the most effective reduction in artifacts.
DCDi™ - Video is analyzed on a single pixel granularity to detect presence or absence of
angled lines and edges, which are then processed to produce a smooth and natural looking
image without visible artifacts or “jaggies”.
6.7 Scaling
High Quality Fully Programmable Two Dimensional Scaler
Aspect Ratio Conversion for “Anamorphic” or “Panoramic” (non-linear)
Display 4:3 images on 16:9 displays and vice versa, including Letterbox to Fullscreen, Pillarbox,
15
and Subtitle Display Modes
6.8 TrueLife™ Enhancer
Two dimensional, non-linear, luma and chroma video enhancer brings out details in the picture,
producing a more life-like image.
6.9 Memory
32-bit wide SDRAM (i.e. one 2M x 32-bit, or two 1M x 16-bit) controller, up to 166 MHz operation, for
external SDRAM
INTERNAL BLOCK DIAGRAM:
7. TVP5147
Functional Block Diagram
16
A
B
Wiring diagram
123456
TO KEYBOARD
C
D
TO PANEL
KEY BOARD
6 PIN
X6
6 PIN
X10
X7
12 PIN
X502X510
X29X13X28
12 PIN
X508
X509X507X504
POWER BOARD
11 PIN
LVDS
X15
8 PIN
10 PIN
AC IN
XA5
XA7
XA9
XA12XA11
667-PS42R6-53667-PS42R6-56
File:C:\Documents and Settings\..\PH42R6.Sch Drawn By:
Number
Sheet of
Revision
TO SPEAKER
Title
SizeBDate:18-May-2006
54321
6
A
B
C
D
17
Troubleshooting charts
p
k
n
p
p
1. No raster, no picture and no sound:
Check if power indication is light?
yes no
normal
Turn on the power again and chec
the power supply
JI
EEPROM
abnormal
Normal abnormal
Check X29,
rewrite the
software
Check the supply
power D3.3V, 12V
abnormal
abnormal normal
Set the power to self turn-o
mode then check
Power board
roblem
No raster, no picture and no sound
Turn off the
ower and then
turn on
Rewrite the software
again and check
Check 5V-STBY
abnormalnormal
Power board
roblem
18
2. With sound but no picture:
d
yes no
no yes
Check if the white
balance of the factory
menu is normal?
normal
abnormal
Check each level
Normal abnormal
circuit following the
input signal channel
Normal abnormal
Check if no image for all
other channels
Refer to checking
program4
yesno
Reset the EEPROM
With sound but no picture
Display LOGO?
Check if the
X13 is signal
Check LVDS wire
Panel
damaged
Reconnect the LVDS
wire
If the panel lights or produce
high voltage when turn on the
TV
Power boar
damaged
19
3. With picture but no sound.
n
r
t
d
V
p
N
N
p
p
N
y
y
With picture but no sound
If there is output from sound power amplification boardno
yes
check if input signal in sound power
amplification board
Sound box damaged
yesno
Sound power amp. or other peripheral circuit have
problem. Check power supply, if SHUTDOWN pi
control is normal and if output short circuited or othe
problems that cause protection to work.
Measure if the sound input of the
present channel is normal
no yes
MSP3420 or other peripheral
circuit have problem
Check different levels of circui
following input audio signal
4. A certain channel is abnormal
1) AV no picture
Check if X7 has signal input
yes no
Check if N7 has clock signal output an
ITU-R 656 is normal?
There is problem from A
socket to X7 channel
no
es
7 or other peripheral
circuit have problem
Check if N10 FLI2310
out
ut is normal
no
es
10 FLI2310 or other
eripheral circuit have
roblem
15 or other peripheral
circuit have problem
20
2) No picture in YPRPB
N
t
N
t
N
t
N
y
y
y
t
N
r
p
p
t
N
r
p
N
r
p
t
y
y
y
Check ifN39 has input signal.
es
no
Check if the outpu
of N4 is normal?
no
4 or the peripheral circui
have problem.
Check if the input of N4 is
normal?
no
es
15 or the peripheral
circuit have problem.
es
39 has problem
4 or the peripheral circui
have problem
3) TV no picture
.
Check if N7 has clock signal outpu
and ITU-R 656 is normal?
7 and othe
eripheral circuit have
roblem.
10 FLI2310 and othe
eripheral circuit have
Check if X7 have input signal?
esno
Check TUNA01 of
supply power and
other peripheral circui
es no
Check if N10 FLI2310
output is normal?
esno
15 and othe
eripheral circui
21
5. Abnormal picture :
Peculiar color, which may be caused by the following phenomena:
A certain differential wire pair of LVDS (RX0+/-,RX1+/-,RX2+/-,RX3+/-) of X13 is abnormal,
which may lead to lack of color (it’s not a complete loss of color);
Abnormal picture vertically or horizontally (bar like): Abnormal in complete line extending all the
way from up downward on the screen of stand definition TV set; abnormal vertically on half
screen of high definition TV set. They may be caused by the damage of the address BUFFER
module that directly corresponds to its position, or may be caused by the damage of the
connection wire that directly corresponds to the position of the screen. The horizontal bar like
abnormality is also related to the Y driving circuit that corresponds directly to its position. To
judge these phenomena, It’s possible to check it by setting the screen to the status of self
check as explained above
No brightness in the square block area: Normally it’s caused by the damage of the address
BUFFER module that directly corresponds to its position, or may be caused by the damage of
the connection wire that directly corresponds to the position of the screen. To judge these
phenomena, It’s possible to check it by setting the screen to the state of self check as
explained above.
Diagnosis for panel and service
1. The screen is not bright:
a. Check to see if the power supply plug from the power filter board to the power supply board is well
inserted into the socket. If not, plug it in.
b. Check if the fuse on the power supply board is blown up. If yes, replace it for a good one.
c. Remove our main board and the video processing board, unplug P4, P2, short circuit the pin 8 of P2 to
the ground, testing signal itself of the logic board set the on, switch the power on and see if the screen is
lit. If the screen can give a normal and completely white field signal, then the problem lies in our main
board or video processing board, which will be dealt with separately.
d. If the screen is not lit, then first replace the power supply board to see if the problem is solved.
e. If the problem remains after the power supply board is replaced, then the problem lies in the screen.
Replace the entire screen for treatment.
2. There appears on the screen a line or several unlit lines.
Check if the socket between Y driving board and Y BUFFER is plugged well. If not, plug it well. If yes
22
then replace Y BUFFER (upper, lower) in respect to the upper, lower part of the dark line on the screen.
3. There appear on the screen one or several horizontal lines that are much brighter
than the remaining horizontal lines at the edge:
Check if the socket between Y driving board and Y BUFFER is plugged well. If not, plug it well. If yes
then replace Y BUFFER (upper, lower) in respect to the upper , lower part of the dark line on the screen.
4. There appear on the screen one vertical unlit line or a vertical entirely unlit block
a. If it’s one vertical unlit line, then COF has problem.
b. If it’s a vertical entirely unlit block, then first check if the connection socket between COF and logic
BUFFER has problem. If not, check if the connection socket between the logic BUFFER and the logic
board is normal. If yes, replace the logic BUFFER. Finally, if the problem still remains when the
replacement is over, then replace the logic board.
5. There appears on the screen a mono color signal and one or several vertical bright
lines of other colors:
a. If it’s a vertical bright line of other colors, then the problem lies with COF or the screen.
b. If it’s an entire vertical block of other colors, then first check to see if the connection socket
between COF and logic BUFFER has problem. If no problem, check if the connection
socket between the logic BUFFER and the logic board is normal. If it’s normal, then replace
the logic BUFFER. If the problem still remains after the replacement, then replace the logic
board. Finally if the problem is still there, then the problem lies with COF.
6. There appear on the screen abnormal bright spots or blocks that are different from
what’s described above:
a. Check if the connection socket between COF and logic BUFFER board has been well plugged.
b. Replace the logic BUFFER board. If it’s not solved then replace logic board. If the problem still
Place this parallel termination close to
corresponding memory IC pins
FSCLK+
FSCLK-
R105
137
3
23SDD[31-0]
3.3VSDRAM1
100n
C132
3.3VSDRAM1
100n
C133
23SDD[31-0]
100n
C134
100n
C135
C136
C137
100n
100n
C138
C139
100n
100n
C140
100n
C141
100n
C142
100n
C143
100n
XOCECO
TITLE:
CPU
DWG NO.
203-L37R70-01DL
REV.
1.0
XIAMEN OVERSEAS CHINESE
ELECTRONIC CO., LTD.
Frame Memory
Sheet 4 of 7
10V
10V
47uF
47uF
C145
10V
10V
47uF
47uF
C146
10V
22uF
C147
C148
100n
100n
Route (VIN1/ADC_IN1, ADC1_RETURN) and (VIN/ADC_IN2,
ADC2_RETURN) as differential tracks close to each
other and ground the return track of each pair very
close to the gm1601 D12 ball and ground pin
optional Filter Caps in between a pair on LBADC
differential tracks close to Malibu chip
FSCLK+,FSCLK- should be routed
like a differential pair
Place Series termination resistors on bidrectional
lines -DATA and DQS midway between gm1601 BGA and memory
Max trace length on this interface is 2.5 inches
Minimize trace length difference between DQS and dataand
among the data lines
HDMI
1
RESET_OUT
+3.3V
R136
R137
+5VSTB
47K
47K
+5VSTB
10K
R243
R242
2.2K
V18
BC847AW
+3.3V_I/O_BGA
R132
2.7K
TP10
TP11
TP12
TP13
9
+3.3V_DIG
100n
100n
C229
C228
N16
AT24LC32A/SN
A0
A1
A2
GND
R141
22
R142
22
R143
22
R144
22
R145
22
R146
22
R147
22
R148
22
FSADDRU[0-11]
+3.3V_DIG
R140
10K
R138
10K
D
S
D
S
1
2
3
4
/RESET
V9
BC847AW
+5VSTB
R139
47K
SDA_OUT
V7
BSS138LT1
G
+3.3V
SCL_OUT
V8
G
BSS138LT1
/USB_POW
100n
C230
C231
100n
5
OCMADDR[0-19]
5
OCMDATA[0-7]
+3.3V_DIG
10V
C232
22uF
C233
100n
OCMDATA[0-7]
OCMADDR[0-19]
Socket for a X8 Flash (64/128/256/512K)
and PROMJETmemory Emulater