SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
CAUTION:
Before servicing this chassis, it is important that the service technician read the “Safety
Precautions” and “Product Safety Notices” in this service manual.
No. 0257
L19DP04U
L19HP04E
L19HP04U
L22DP04E
L22DP04U
L22DP04UA
L22HP04E
L22HP04U
D a t a c o n t a i n e d w i t h i n t h i s S e r v i c e
manual is subject to alteration for
improvement.
ATTENTION:
Avant d’effectuer l’entretien du châssis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise“ und „Hinweise
zur Produktsicherheit“ in diesem Wartungshandbuch zu lesen.
FOR ALL PARTS PLEASE MAKE
CONTACT WITH ASWO.
FOR YOUR LOCAL OUTLET GO TO
Les données fournies dans le présent
manuel d’entretien peuvent faire l’objet
de modifications en vue de perfectionner
le produit.
D i e i n d i e s e m Wa r t u n g s h a n d b u c h
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
12.10 17MB45 Power ...................................................................................................... 46
4
1INTRODUCTION
17MB45-2 mainboard is based on MSTAR concept IC. This IC is capable of handling audio
processing, video processing, scaling-display processing, 2D comb filter, OSD and text
processing, 8 bit dual LVDS transmitter.
TV supports PAL, SECAM, NTSC colour standards and multiple transmission standards as
B/G, D/K, I/I’, and L/L’ including German and NICAM stereo.
Sound system is able to supply 2x2.5W (10%THD) audio output power for stereo speakers.
Supported peripherals are:
The analog part of the moard can support DVD module which is connected to mainboard
through a cable.
The USB feature is supported through digital part of the mainboard.
1 RF input VHF1, VHF3, UHF @ 75Ohm(Common)
1 Side AV (CVBS, R/L_Audio) (Common)
1 SCART socket(Common)
1 PC input(Common)
1 Headphone(Optional)
1 Common interface(Optional)
1 Digital USB(Optional)
1 HDMI (Optional)
2TUNER
A horizontal mounted and Digital Half-Nim tuner is used in the product, which covers 3
Bands(From 48MHz to 862MHz for COFDM, from 45.25MHz to 863.25MHz for CCIR CH).
The tuning is available through the digitally controlled I2C bus (PLL). Below you will find
info on the Tuner in use.
2.1 General description of TDTC-G101D:
The Tuner covers 3 Bands(from 48MHz to 862MHz for COFDM, from 45.25MHz to
863.25MHz for CCIR CH). Band selection and Tuning are performed digitally via the I2C
bus.
5
Tuner and Main IC connections for analog:
2.2 Features of TDTC-G101D:
x Digital Half-NIM tuner for COFDM
x Covers 3 Bands(From 48MHz to 862MHz for COFDM,
x From 45.25MHz to 863.25MHz for CCIR CH)
x Including IF AGC with SAW Filter
x Bandwidth Switching (7/8 MHz) possible
x DC/DC Converter built in for Tuning Voltage
x Internal(or External) RF AGC, Antenna Power Optional
6
2.3 Pin Configuration:
3 SAW FILTER
3.1 IF Filter for Audio Applications – Epcos K9656M
3.1.1 Standarts
x B/G
x D/K
x I
x L/L’
3.1.2 Features
x TV IF audio filter with two channels
x Channel 1 (L’) with one pass band for sound carriers at 40,40 MHz (L’) and 39,75
MHz (L’- NICAM)
x Channel 2 (B/G,D/K,L,I) with one pass band for sound carriers between 32,35 MHz
The PT2333 is a Class-D power amplifier designed for audio equipments, maximum
output power can reach up to 2.5W (VDD=5V5/ ȍ7+' 7KH37FRPSRVHG
of exclusively designed Class-D circuitry (patented) by PTC, along with the most advanced
semi-conductor technology. When compared to the traditional Class-AB amplifiers, the
PT2333’s has a much higher efficiency (>80%), low heat dissipation, and produces superior
audio quality. PT2333’s external circuitry is simple and easily accessible, and consists of
flawless self-protection capabilities. The chip’s packaging is small, thus it occupies an
insignificant amount of space on the circuit board; therefore, making it the predominant
choice when it comes to audio amplifiers.
4.2 Features of PT2333:
• CMOS technology
• Operating voltage range from 2.7V up to 5.5V
• Differential analog input
• Maximum outSXWSRZHU:ȍ#7+'
• Output low-pass LC filter is not required.
• Voltage gain determinate by the external resister
• Contains shutdown function
• POP noises free in shutdown and power ON/OFF period
• Available in MSOP 10-pin and WLCSP 9-pin miniature packages
4.3 Pin Configuration of PT2333:
WLCSP-9 PACKAGE:
5 MICROCONTROLLER (MSTAR)
5.1 Genaral Description
The MST9WB6JS is a high performance and fully integrated IC for multi-function LCD
monitor/TV with resolutions up to UXGA (1600*1200)/WSXGA+ (1680*1050). It is
configured with an integrated DVI/HDCP/HDMI receiver, a multi standard TV video and
audio decoder, a video deinterlacer, a scaling engine, the MSTARACE-3 color engine, an onscreen display controller and a built in output panel interface. By use of external frame buffer,
PIP/POP is provided for multimedia applications. Furthermore, 3D video decoding and
processing are fulfilled for high-quality TV applications. To further reduce system costs, the
MST9WB6JS also integrates intelligent power management control capability for green-mode
requirements and spread spectrum support for EMI management.
11
5.2 Features
xSingle Display LCD TV controller with PC
& multimedia display functions
x Input supports up to UXGA & 1080p
x Panel supports up to UXGA (1600x1200) /
WSXGA+ (1680x1050)
x TV decoder with comb filter
x Multi-standard TV sound demodulator and
decoder
x10-bit triple-ADC for TV and RGB/YPbP
x 10-bit video data processing
x Integrated DVI/HDCP/HDMI compliant
receiver
xHigh-quality dual scaling engines & dual 2-
D video de-interlacers
x 3-D video noise reduction
x MStarACE-3 picture/color processing
engine
xEmbedded On-Screen Display (OSD)
controller engine
x Built-in MCU supports PWM & GPIO
x Built-in dual-link 8-bit LVDS transmitter
x 5-volt tolerant inputs
x Low EMI and power saving features
x 216-pin LQFP
r
Multi-Standard TV Sound Decoding/Processing
xSupports BTSC/A2/EIA-J demodulation and
decoding
x FM Stereo & SAP demodulation
x Supports MP3 decode
x Programmable delay for audio/video
synchronisation
xAudio processing for loudspeaker channel,
including volume, balance, mute, tone and P/G
EQ
xOptional advanced surround available (Dolby
2
SRS
, BBE3 …etc) Note
1
,
Digital Audio Interface
2
S digital audio input & output
xI
x S/PDIF digital audio output
x HDMI audio channel processing capability
x Audio Line-In L/R x2
x Audio Line-Out L/R x3
x Built-in audio DAC L/R x3
x Built-in audio ADC L/R x1
x SIF audio input
NTSC/PAL/SECAM Video Decoder
xSupports NTSC M, NTSC-J, NTSC-4.43,
PAL (B,D,G,H,M,N,I,Nc)
x Automatic TV standard detection
x 3-D Comb filter for NTSC/PAL
x 5 configurable CVBS & Y/C S-Video inputs
xSupports closed caption and V-chip
x CVBS video output
xVideo IF for Multi-Standard Analog TV
x Digital low IF architecture
x Stepped-gain PGA with 26dB tuning range
and 1dB tuning resolution
xMaximum IF analog gain of 37dB in
addition to digital gain
xProgrammable TOP to accommodate
different tuner gain to optimise noise and
linearity performance
Analog RGB Compliant Input Ports
x Two analog ports support up to UXGA
x Supports HDTV RGB/YPbPr/YCbCr
x Supports Composite Sync and SOG (Sync-On-
Green) separator
xAutomatic color calibration
DVI/HDCP/HDMI Compliant Input Ports
x TWO DVI/HDMI input ports with built-in switch
x Supports TMDS clock up to 225MHz @ 1080P
60Hz with 12-bit deep-color resolution
x Single link on-chip DVI 1.0 compliant receiver
x High-bandwidth Digital Content Protection
(HDCP) 1.1 compliant receiver
xHigh Definition Multimedia Interface (HDMI) 1.3
compliant receiver with CEC support
x Long-cable tolerant robust receiver
x Supports HDTV up to 1080P
12
6 INTEGRATED DVB-T RECEIVER (CHEERTEK)
6.1 General Description
CT216T is a highly integrated single chip for DVB-T compliant STB solution. Compared
with Cheertek's previous generations of STB receiver devices. CT216T further interates
COFDM demodulator USB 2.0 HS host controller, memory card reader, 1/2-bit SPIFlash
interface, audio DAC, PWM in/out and SAR-ADC functions. In additiont special
enhangements are provided such as MPEG-4 video decoding, 16-bit OSD with anti-flickering,
HW JPEG decoding, flesh tone and black-white extensions, and improvement of small video
quality.
CT216T includes COFDM demodulator transport stream de-multiplexer, DVB-CSA
compliant de-scrambler, RISC MPUs, MPEG-1/2/4 AV decoder, digital T\/ encoder, audio
DACs, USB 2.0 HS host controller, memory card reader, smart card reader, CI controller and
other peripherals.
Cli216T is designed in focus on the market of single tuner input product which makes, it a
cost effective solution. Supports include free to air, conditional access for SC (Smart card)
and CI portable devices, PVR, LCD TV, and other DVB-T applications.
Digital Front End Diagram:
6.2 Features
COFDM Demodulator
x ETSI EN 300 744 DVB-T NorDig Unified 1.0.3, and D-book compliant
x Automatic spectral inversion, detection
x Integrated ADC
x Direct IF (36.167 MHz or 43.75 MHz) or low IF (4.57 MHz) supported
x 6LQJOH,)$*&RUGXDO5)O)$*&FRQWUROVZLWKǻȈPRGXODERQ
x Impulsive noise cancellation
x Carrier acquisition range: ±400 kHz (extensible to ±600 kHz in 8MHz BW)
13
x Adjacent channel interference (ACI) filter,for supporting 6, 7, and 8MHz channels
with one 8MHz analog filter
x Co-channel interterence (CCl) supression
x RF signal strength monitor
MPU
x Three 32-bit RISC MPU run up to 166MHz with total 448DMIPS
x 8KB I-Cache and 8KB D-Cache
x Two general purpose timers
x Watchdog timer
x DSU for source level debug
Memory
x 6-bit SDRAM controller supports up to 32MB (16MB for l28-pin)
x Unified memory architecture
x Parallel flash (216-pin only)
x 1/2-bit SPI flash
Transport De-multiplexing
x TS, PES, and ES demultiplexing
x OneTS path
x CI CAM interface (216-pin only)
x 32 general purpose PID filters
x 32 Section filters
x CRC-32 accelerator
x DVB-CSA de-scramblers
Video Decoding and Processing
x MPEG-2 MP@ML
x MPEG-4 SP&ASP
x PAL/NTSC format conversion
x 3:2 pull down
x Zoom in/out from 1/16X to 16X
x HW JPEG decode
x 4/8/16-bit OSD with anti-flickering
x On chip NTSC/PAL TV encoder
x CVBS, S-VHS, and component video
x VBI insertion for Teletext, CC and WSS
x ITU-R BT.601 and ITU-R BT.656 outputs
x Flesh tone extension
x Black/white extension,
Audio Decoding and Processing
x MPEG-1: layer 1/2/3
x MPEG-2: layer 1/2
x Decode MPEG-2 and MPEG-1 audio at sampling frequency of 16K, 22.05K, 24K,
32K, 44.1K, and 48KHz
x Decode CU-DA at sampling frequency of 44.1 KHz
14
x SPDIF out for AC-3 by-pass
x Embedded 2 channels audio DAC for L/R outputs
x Digital mute control and volume adjustment
OSD(On Screen Display)
x There are total 9 display planes: border; background. video. RS1 (Rectangle Strip 1),
RS2, OSD, RS3, RS4, and cursor.
x 4/8l16-bit OSD with anti-flickering and anti-flutter
x Support alpha-blending per color
x Adjustable brightness control in window
x Bitmap OSD
x Support horizontal pixel duplication to enlarge bitmap automatically
x Support sub-region redraw to facilitate bitmap display.
Digitnal TV Encoder
x NTSC-M, PAL-B, D, G, H, I, Nc, M encoding
x Four video DACs to provide 6 configuration output: modes
x Support CVBS, S-VHS. and component video outs
x VBI insertion for Teletext, CC and WSS
x Color burst amplitude control
x Programmable sync. level
x On chip, color-bar generator
High Speed I/O
x USB 2.0 HS host controller
x Memory card reader with SD, MMC, and MS interfaces
x Compliant with SD spec. 1.1 and MMC spec. 4.0 with 1-bit & 4-bit modes.
x Compliant with Memory Stick Pro format spec. 1.02 and Memory stick format spec
1.43 with 1-bit and 4-bit modes.
Peripherals
x Up to 3 full duplex UART with 16-byte FIFO
x 2-wire serial (2WS) in master mode .. .
x Up to 2 IS0-7816 compliant SC (1 in 128-pin, can also be used as UART)
x 5 digits 7-Segrnent LED control
x 5x3 two-dimension key scan
x 2 SAR-ADC input
x 4 PWM input/output
x 1 HW IR command decode
x GPIO
Electrical and Physical Characteristics
x Capable of using single 27MHz clock input crystal
x 1.8V and 3.3V dual power supply
x Power standby mode
x PQFP-128 (CT216T-Z) or LQFP-216 (CT216T-R) package
15
7. 4MX16 BIT SYNCHRONOUS DRAM ( DIGITAL SIDE
SDRAM)
7.1 General Description
The EM638165 SDRAM is a high-speed CMOS synchronous DRAM containing 64 Mbits. It
is internally configured as 4 Banks of 1M word x 16 DRAM with a synchronous interface (all
signals are registered on the positive edge of the clock signal, CLK). Read and write accesses
to the SDRAM are burst oriented; accesses start at a selected location and continue for a
programmed number of locations in a programmed sequence. Accesses begin with the
registration of a BankActivate command which is then followed by a Read or Write
command. The EM638165 provides for programmable Read or Write burst lengths of 1, 2, 4,
8, or full page, with a burst termination option. An auto precharge function may be enabled to
provide a self-timed row precharge that is initiated at the end of the burst sequence. The
refresh functions, either Auto or Self Refresh are easy to use. By having a programmable
mode register, the system can choose the most suitable modes to maximize its performance.
These devices are well suited for applications requiring high memory bandwidth and
particularly well suited to high performance PC applications.
7.2 Features
x Fast access time from clock: 4.5/5/5.4 ns
x Fast clock rate: 200/166/143 MHz
x Fully synchronous operation
x Internal pipelined architecture
x 1M word x 16-bit x 4-bank
x Programmable Mode registers
x CAS Latency: 2, or 3
x Burst Length: 1, 2, 4, 8, or full page
x Burst Type: interleaved or linear burst
x Burst stop function
x Auto Refresh and Self Refresh
x 4096 refresh cycles/64ms
x CKE power down mode
x Single +3.3V ± 0.3V power supply
x Interface: LVTTL
x 54-pin 400 mil plastic TSOP II package
x Pb free and Halogen free
x 60-ball 6.4mm x 10.1mm VFBGA package
x Pb free
16
7.3 Pin Configuration
17
8 S25FL016A - 16 Megabit Cmos 3.0 Volt Flash Memory with
50-Mhz (Serial Peripheral Interface)Bus
8.1 General Description
The S25FL016A is a 3.0 Volt (2.7V to 3.6V), single-power supply Flash memory device.The
device consist of thirty-two sectors, each with 512 Kb memory.
The device accepts data written to SI (Serial Input) and outputs data on SO (Serial Output).
The devices are designed to be programmed in-system with the standart 3.0 volt Vcc supply.
The memory can be programmed 1 to 256 bytes at a time, using the Page Praogram
command. The device supports Sector Erase and Bulk Erase commands.
Each device requires only a 3.0 volt power supply (2.7V to 3.6V) for both read and write
functions. Internally generated and regulated voltages are provided for the program
oprerations. This device does not require a Vpp supply.
8.2 Distinctive Characteristics
Architectural Advantages
x Single Power supply operation
-Full voltage range: 2,7 to 3,6V read and program operations
x Memory Architecture
-Thirty-two sectors with 512 Kb each
x Program
-Page program (up to 256 bytes) in 1,4 ms (typical)
-Program operations are on a page by page basis
x Erase
-0,5s typical sector erase time
-10s typical bulk erase time
x Cycling Endurance
-100,000 cycles per sector typical
18
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