Skyworth 8M29B User manual

SERVICE MANUAL
8M29B CHASSIS
Description:
MODEL.
Engineering Dept:
Artwork By:
Checked By:
Approved By:
Brand Name:
JOB NO.
Date:
Date:
Date:
SERVICE MANUAL 8M29B
2011-5-23
SKYWORTH
SIZE:A5
Design and specifications are subject to change without prior notice.
(Only Referrence)

Content-------------------------------------------------------------------------------2
-2-
Technical Specification-----------------------------------------------------------3-14
8M29 Block Diagram -------------------------------------------------------------15
List of key parts---------------------------------------------------------------------16
IC BLOCK Diagram----------------------------------------------------------------17-31
MAIN PCB-TOP--------------------------------------------------------------------32
MAIN PCB-BOT--------------------------------------------------------------------33
Circuit Diagrams--------------------------------------------------------------------34-42

-3-
LCD 8M29Bchassis.

105
140
For 32LED
For 42LED
-4-
4.
5.
Base on different order
FOR 32LED
FOR 42LED
93
400
95 97
93 95 97
450

For 42LED
For 42LED
-5-
８
８
１０ １５
9800 12500 12500(266, 276)
9800(280, 290)
6500(313, 329)

40
40
3
2
1
4.2
50
0.5
80
40
12000
-6-
24
6

1080
1920
uv
uv
40
YES
8
6
46
46
NO
NO
Standard
English
Standard
20
Middle
-7-
For 42LED
For 42LED
Base on different order
No
"Low" in some status

-8-
4

-9-
DTV-PRODUCTOINS SPECIFICATION
Model # 32"

46"
Country( West Eu./East Eu./Russia/AP/US/S.A./Japan/
…) Brazil & Argentina
Brand Skyworth/ODM
Category (Monitor/TV/Combo/Portable TV…) TV
Panel technology (LCD / PDP) LCD/LED
Market Position (High/Mid/Access,,,) Class
Cabinet Design (Example: 01,23 series ) K06/E60
Product Nb -
Chassis solution MSD309
Chassis name 8M29B
Chassis PCB Standard Skyworth RGB New Standard
Predecessor (replace) -
MP date requested (ETD) 2011.1
MP date confirmed by supplier (ETD/ETA) -
Status( Pre./Finish ) -
Regional requirement
Homologation (Gostandard/CE/MPTT/CB/…) CB
RoHS Yes
Power supply(100-240V AC +/-10%/...)100-240V AC (-20%,+10%)
Power consumption working / Annual -
Power consumption standby <1W
Power plug(VDE/UL/BS/…) UCIEE/2pins
Picture display
Screen size : diagonale (inch) 32",42", 46"
Aspect ratio (16/9 // 4/3 // 15/9) 16:9
1st panel supplier : panel suppliers LG
1st panel supplier : panel reference
Panel Display Type(MVA/PVA/IPS/…) TFT LCD
1st panel supplier : resolution 32:1366x768ǃ42/46:1920x1080
Dynamic contrast ratio >10000
˖
1
Video signal process
Comb Filter (2D/3D) 3D
Noise Reduction (adaptative/3D/…) 3D
Picture improvement ( LTI/CTI,BLE,WLE,...) LTI/CTI
Color process (Gama correction/Skin correction /... ) Follow main IC

-10-
Colour preset (Cool/Normal/Warm/Personal) Medium, Cool, Warm and Personal in PC mode
Picture control ( Bright/Con./Sharpness/Color/Tint/…) Yes
Picture presets : Standard / Bright / Soft / User Standard / Mild / Film / Dynamic / Personal
Picture freeze Yes
Multi picture : PIP ( AV )/POP˄AV˅No
Dynamic Backlight Control No
LED Backlight Yes
Deinterlacer (No/linerar/motion adaptive/motion
compensative) 3D motion adaptive
Film mode / reverse 3:2/2:2 pull down Yes / Yes
Full HD support ( 1080P ) Yes
Single scan / Dual scan ( 120HZ ) 32:Single scan,42/46:Dual scan(only for LED)
Zoom type : 4/3 format Yes
Zoom type : 14/9 Zoom Yes
Zoom type : 16/9 Zoom 16/9 ZOOM 1
Zoom type : 16/9 Zoom up/down 16/9 ZOOM 2
Zoom type : Cinerama Yes
Zoom type : 16/9 Format Yes
Zoom type : Auto ( by SCART Pin8 and WSS ) Yes
Picture Auto adjustment (PC mode) Yes
3D Panel Type(PR / SG)
3D Mode
3D To 2D (Y/N)
2D To 3D (Y/N)
Left / Right Swap (For PR Panel)
Sound
Sound type ( Mono/AV stereo/Stereo ) stereo
Music Power (Watt)/RMS Power (Watt) 2 x 8W
Tone control ( Bass&Treble / Graphic Equalizer ) Bass&Treble
Special sound effect ( AVL / WIDE / Pseudo /… ) AVL
Suround system ( Dolby / VD / SRS / BBE / … ) Built-in Surround
Sound control ( Volume , Balance , Mute ) Volume, Balance, Mute
Sound presets (User/Speech/News/Standard) Standard / Music / Movie / Sport / Personal
Headphone volume control ( Separated / linked ) Yes(Linked)
Sound quality ( High / Mid / Low ) Mid
Reception and Decoding capability
RF range
˄
ATV
˅
54MHz

864MHz
RF range
˄
DTV
˅
VHF 177-213 MHZ, UHF 473-803 MHZ
Color System (PAL/SECAM/NTSC/PAL M,N ) PAL M,PAL N,NTSC M
Audio Standard ( B/G/H/D/K/K'/I/L/L' ) M,N
Stereo audio system ( Nicam,MTS,A2,….) BTSC,SAP
Video standard NTSC 3.58 / 4.43 (AV)/PAL 60NTSC 3.58/4.43 , PAL

-11-
DTV SD support (DVB-T/S/C , ATSC , QAM , … ) ISDB-T
DTV HD Support MPEG2,MPEG4,H.264
MHEG5 No
HD capability with YPbPr Yes (720p; 1080i; 1080p@24/50/60Hz; 480i/p; 576i/p)
PC capability (up to maximum format) Up to 1280X1024 60Hz
HDMI capability ˄AV/PC Format) Up to 1080P 24/50/60HZ
Compatible video format if DVD/USB:
DviX/VCD/SVCD/JPEG/AVI/MPEG2/WMV- HD/SD JPEG/MPEG2/MPEG4/H.264/DivX (depending on license)
Compatible audio format if DVD/USB:
MP3/WMA/AAC/MPEG1/… MP3/WMA(depending on license)
Playable Discs (CD/CD-R(RW)/CD-ROM/DVD+R/+RW/-
R/-RW
)
No
Card reader format compatibility No
Macrovision Yes
PVR Yes˄FOR USB˅
Network No
User convenience
OSD Language* English/Spanish/Portuguese/French
OSD Positioning No
OSD Trans
p
arenc
y
Ad
j
us
t
No
OSD Timeout Adjust No
Customer Brand name(LOGO) Yes
IB languages English
ATV Program Numbers (example: 99+3AV input ) 99+7AV
DTV Program Numbers 600
Program edit ( naming , sorting , skip , swap ….) Naming / Skip / Swap
Auto Naming/Auto Sorting No
TV Guide(DTV EPG) EPG(next Seven-day)
Favorite program Yes
Number of buttons on cabinet (Power; Vol+/-; Pr+/-,
Menu ) Vol+/-; Pr+/-, Menu ,Source,Power(optional)
Main switch button (yes/No) Yes
CCD˄Closed Caption)/V-CHIP Yes/No
Text Standard: (Top, FLOF,,,) No
Teletext Level: 2.5 / 1.5-
Pages for teletext -
Teletext character sets **** -
DVB-T teletext -
Real clock From DTV
Sleep timer 10-240Min.
Timer Turn On / Off, Program Switch
Parent Control -Source and Channel lock (Input code for
certain channel) Yes
Parent Control - Child lock (set the lock of the keyboard,
only the RCU can control the TV) No

-12-
Parent Control - Kid pass (preset the ontime, channel for
each day of the week) No
Parent Control - Channel lock (For digital transmission
and DVD program, to filter some programms) Yes
Calendar / Games No
No program auto switch off 15 mins.
Hotel mode (Y/N) T.B.D
DVD player (No/slot/tray) No
Tuner FM (yes/No) No
software download(RS232/CI/USB/OAD) USB
Factory reset Yes˄in factory menu,reset the setting to shipment state )
Screen saver Yes
Blue Back No
LED indicator(Power on/Standby) Blue / Red
Connectors -Rear
RF Input (Antenna): Air/ Cable/ 2in1 Air+Cable
Scart : CVBS in&out / RGB / S-VIDEO No
CINCH video in / out˄AV1˅No
CINCH audio in / out (No volumpe control on Audio
out/can be jack 3,5mm) No
S-video in No
Component Video Input (YCrCb/YPrPb) No
Component Audio Input (YCrCb/YPrPb) No
VGA in / Audio L/R in / Jack audio in 3.5mm VGA + dia.3.5mm for audio in
HDMI 2
DVI No
Audio input for DVI No
CINCH subwoofer out / Coaxial out (S/PDIF) No
Headphone output connector (mm) No
RS232 ( Y/N , VGA or DB9 port …) No
Card Readers No
USB slot (No/1.1/2) 1 (Software update, JPEG, MP3, WMA, RMVB, DivX) Multimedia
depends on license
DVB-CI (common interface) No
External power converter input No
Connectors -Side
HDMI 1
AV-IN 1
AV-OUT No

-13-
Component Video Input (YCrCb/YPrPb) 1
Component Audio Input (YCrCb/YPrPb) 1 with cable adapter
Headphone output connector (dia.mm) 1˄3.5mm)
CINCH subwoofer out / Coaxial out (S/PDIF) S/PDIF out ( optical ˅
USB slot (No/1.1/2) 1 (Software update, JPEG, MP3, WMA, RMVB, DivX) Multimedia
depends on license
DVB-CI (common interface) No
DLNA No
UI/RC
UI design (font/pixel, 2D/3D graphic engine..)SOD Standard
RC Model YK76B3 ( Toshiba )
RC system RGB Standard
RC # of keys
Accessories included
Carton (English/French/Spanish) English
IB English
Circuit diagram No
Batteries Yes
Product registration Card Yes˄English)
AC Cable Length 1.8m
Audio Cord (Jack 3.5mm) Yes(For component audio in)
VGA Cord No
Wallmount frame Optional
Antenna Cable No
6 in 1( YPbPr & CVBS) cable adapter No
3D Glasses No
General Data
Size (W x H x D, with stand) in mm -
Size (W x H x D, without stand) in mm -
Package Size (W x H x D, without stand) in mm -
Net Weight in kg -
Gross Weight in Kg -
Design / Mechanical
Wallmount VESA compatible (standard reference) Yes
Adaptor for VESA wallmount compatibility (accessory
ref)
Yes
Desktop Stand (included/optionnal + ref/No) included
Panel Tilt (Fowards/Backwards/Rotation) No
Swivel function desktop stand (yes/No) + motorized? No
Docking station (yes/No) No
Floor Stand (included/optionnal + ref/No) No
Glass shield (yes/No) No
Finish on Front -
Finish on side -
Finish on back -

Finish on stand -
number of colors on carton box 2
Brand logo Customer Inlet
Other logo No
External AC/DC Power with DC power cord (yes/No) No
Handle (yes/No) No
Detachable speaker (yes/No) No
Rating Label langages English
-14-

PR PB Y R L Video
TPA3121 10W + 10W
R/L
DDRII
FLASH
Toshiba TC90517 ISDB-T Demod
SYSTEM
POWER SUPPLY
Side Terminals
Rear Terminals
HDMI2 HDMI3
PC PC Audio S/PDIF
HDMI1
Uplayer2
IF+/-
SAW P/S
PIXELWORKS 3D Processor
Motion Engine
PA131DG
Uplayer1
MSD309PX-LF-SB DVB-T & IF Demo. Build in MPEG1/2/4/H.264Decoder JPEG MP3 Decoder 3D Comb filter Video Decoder
DVB-T&ATV Demo d
KEY PAD, IR Receiver ,Ambient Sensor
IF (ATV)
ATV
DTV
Tuner
Optional
-15-

List of key parts
No. Name Position Type P/N
1 IR U29 HS0038B4 5300-140038-0010
Bass SL-R3018H-3E 5600-106154-0060
2 Speaker
Treble YDG3040-2 5600-708254-00
Y2 49U3H 4900-125453-R000
3 Crystal
Y1 HC-49U/S 4900-124053-R000
4 Tuner U10 VA1P1BF8405 5202-45733D-7H10
5 Saw U30 F4401 4900-744015-0X00
U3 MP1482DS 476A-M14820-0080
U5 MP1482DS 476A-M14820-0080
8 MP1482DS 476A-M14820-0080
8 MP1482DS 476A-M14820-0080
U9 W9751G6JB-25 4737-W97511-0840
U15 W9751G6JB-25 4737-W97511-0840
U24 EN25F32-100HIP 471R-N25321-0080
U55 TC90517FG 4701-T90510-0640
U37 AS1117L-3.3 47B6-A11170-03
U38 AS1117L-3.3 47B6-A11170-03
N1 AS1117L-3.3 47B6-A11170-03
N2 AS1117L-1.2 47B6-A11175-0300
U54 TPA3121D2PWPR 4722-T31210-0240
6IC
U2 MSD309PX-LF-Z1-SB 475C-M30900-5230
-16-

IC Block Diagram
-17-
L Package
(SOT-223)
T Package
)252-OT()022-OT(
Pin Configurations---AS1117L-3.3
INPUT
OUTPUT
ADJ/GND
VOUT
INPUT
OUTPUT
ADJ/GND
VOUT
INPUT
OUTPUT
ADJ/GND
VOUT
1
2
3
1
2
3
1
2
3
U Package
ADJ/GND
OUTPUT
INPUT
VOUT
S Package
(TO-263)
R Package
INPUT
OUTPUT
ADJ/GND
(SOT-89)
1
2
3
1
2
3
VOUT

IC Block Diagram
-18-
Pin Configurations---AS1117L-ADJ
L Package
(SOT-223)
INPUT
OUTPUT
ADJ/GND
VOUT
1
2
3
PIN ASSIGNMENT
The package of AX3113 is SOP-8L; the pin assignment is given by:
Name Description
FB Feedback pin
EN
Power-off pin
HΚnormal operation(Step-down)
LΚStep-down operation stopped
(All circuits deactivated)
OCSET Add an external resistor to set max
switch output current.
VCC IC power supply pin
SW Switch pin. Connect external
inductor & diode here.
( Top View )
1
2
3
4
8
7
6
5
FB
Ocset
SOP–
8L
AX3113
Vcc
EN
Vss
Vss
SW
SW
VSS GND pin

IC Block Diagram
-19-
LM4558
MP1482DS
BS
IN
SW
GND
SS
EN
COMP
FB
1
2
3
4
8
7
6
5
TOP VIEW

IC Block Diagram
-20-
MST6M20S-LF