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SERVICE MANUAL
8M19B CHASSIS
Design and specifications are subject to change without prior notice.
(Only Referrence)
Description:
SERVICE MANUAL 8M19B
MODEL. Brand Name:
JOB NO.
SKYWORTH
Engineering Dept:
Artwork By: Date: 2011-5-13
SIZE:A5 Checked By:
Approved By:
Date:
Date:
Content-------------------------------------------------------------------------------2
Technical Specification-----------------------------------------------------------3-13
8M19 Block Diagram of Latam-------------------------------------------14
List of key parts---------------------------------------------------------------------15
IC BLOCK Diagram----------------------------------------------------------------16-26
MAIN PCB-TOP--------------------------------------------------------------------27
MAIN PCB-BOT--------------------------------------------------------------------28
Circuit Diagrams--------------------------------------------------------------------29-37
-2-
LCD 8M19B chassis.
-3-
4.
80 For 32LED
Base on different order
5.
FOR 32LED
340 FOR 32LED
-4-
For 42LED
For 42LED
5
5
8
-5-
12
40
40
3
2
1
4.2
50
0.5
80 12000
40
-6-
1080
1920
40 uv
NO
YES
8
6
46 uv
46
NO
Standard
Standard
20
English
Middle
-7-
-8-
DTV-PRODUCTOINS SPECIFICATION
Model # 32"
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 8M19B
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"
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 32:1366x76842/46:1920x1080
Dynamic contrast ratio >10001
Video signal process
Comb Filter (2D/3D) 2D
Noise Reduction (adaptative/3D/...) NO
Picture improvement ( LTI/CTI,BLE,WLE,...) LTI/CTI
Color process (Gama correction/Skin correction /... ) Follow main IC
-9-
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 )/POPAV No
Dynamic Backlight Control Yes
LED Backlight Yes
Deinterlacer (No/linerar/motion adaptive/motion
NO
compensative)
Film mode / reverse 3:2/2:2 pull down Yes / Yes
Full HD support ( 1080P ) Yes
Single scan / Dual scan ( 120HZ ) 32:Single scan
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
Sound
Sound type ( Mono/AV stereo/Stereo ) stereo
Music Power (Watt)/RMS Power (Watt) 2 x 5W
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 rangeATV 54MHz864MHz
RF rangeDTV 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 60 NTSC 3.58/4.43 , PAL
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:
JPEG/MPEG2/MPEG4/H.264/DivX (depending on license)
DviX/VCD/SVCD/JPEG/AVI/MPEG2/WMV- HD/SD
-10-
Compatible audio format if DVD/USB:
MP3/WMA(depending on license)
MP3/WMA/AAC/MPEG1/...
Playable Discs (CD/CD-R(RW)/CD-ROM/DVD+R/+RW/-
No
R/-RW)
Card reader format compatibility No
Macrovision Yes
PVR YesFOR USB
Network No
User convenience
OSD Language* English/Spanish/Portuguese/French
OSD Positioning No
OSD Transparency Adjust 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
CCDClosed 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 10-240 Min.
Timer Turn On / Off, Program Switch
Parent Control -Source and Channel lock (Input code for
Yes
certain channel)
Parent Control - Child lock (set the lock of the keyboard,
No
only the RCU can control the TV)
Parent Control - Kid pass (preset the ontime, channel for
No
each day of the week)
Parent Control - Channel lock (For digital transmission
Yes
and DVD program, to filter some programms)
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 Yesin factory menu,reset the setting to shipment state )
-11-
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 / outAV1 No
CINCH audio in / out (No volumpe control on Audio
No
out/can be jack 3,5mm)
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) S/PDIF out ( optical
Headphone output connector (mm) No
RS232 ( Y/N , VGA or DB9 port ...) No
Card Readers No
USB slot (No/1.1/2) NO
DVB-CI (common interface) No
External power converter input No
Connectors -Side
HDMI 1
AV-IN 1
AV-OUT No
Component Video Input (YCrCb/YPrPb) NO
Component Audio Input (YCrCb/YPrPb) NO
Headphone output connector (dia.mm) 13.5mm)
CINCH subwoofer out / Coaxial out (S/PDIF) NO
1 (Software update, JPEG, MP3, WMA, DivX) Multimedia
USB slot (No/1.1/2)
depends on license
DVB-CI (common interface) No
DLNA No
UI/RC
UI design (font/pixel, 2D/3D graphic engine..) NO
RC Model NO
RC system NO
RC # of keys
Accessories included
Carton (English/French/Spanish) English
IB English
-12-
Circuit diagram No
Batteries Yes
Product registration Card YesEnglish)
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
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 Optional
External AC/DC Power with DC power cord (yes/No) No
Handle (yes/No) No
Detachable speaker (yes/No) No
Rating Label langages English
-13-
8M19 Block Diagram of LAMTAM
IF (ATV)
SAW P/S
Tuner
SYSTEM
DDRII FLASH
IF+/- POWER SUPPLY
(Rear terminal)
KEY PAD, IR Receiver ,Ambient Sensor
Side Terminal
DVB-T&ATV LED PANEL
Demo d MSD309 LVDS,DIM
ON/OFF
DVB-T & IF Demo. Build in
MPEG1/2/4 /H.264 Decoder
YPbPr&Video
JPEG MP3 Decoder ME-MC
+R,L with
cable adapter 3D Comb filter Video Decoder
USB
Multimedia
Service
Hotel Clone
R/L
HDMI TPA3113
5W +5W
S/PDIF Output
Video +R,L in
& Audio out
with cable
adapter Rear Terminal
PC/HDMI1
PC
USB audio in
HDMI2 HDMI1
-14-
-
List of key parts
List of key parts
NO Name Factory mode P/N
1 Receiver IR1 HM238R 5300-148430-0000
YDT2610-02AU 5656R108104-0090
2 Speaker
Y1 HC-49U 4900-124053-R000
3 Crystal
Y2 49U3H 4900-125453-R000
4 Tuner U10 VA1P1BF8401 5202-45733D-7H10
5 SAW U30 F4401 4900-744015-0X00
U50 EUP3482D 47AP-E34820-0080
U51 EUP3482D 47AP-E34820-0080
U52 EUP3482D 47AP-E34820-0080
U49 MP1492DS-LF-Z 476A-M14920-0080
U9 W9751G6JB-25 4737-W97511-0840
U15 W9751G6JB-25- 4737-W97511-0840
6 IC U24 EN25F32-100HIP 471R-N25321-0080
U38 AS1117L-3.3 47B6-A11170-03
U37 AS1117L-1.8 47B6-A11172-03
N2 AS1117L-1.2 47B6-A11175-0300
U18 AS7805R 47B6-A78050-0030
U45 LM4558 47DG-G45580-0080
U56 TPA3113D2 4722-T31130-0280
U2 MSD309PX-LF-Z1-SB 475C-M30903-5230
-15-
-
IC Block Diagram
Pin Configurations---AS1117L-3.3
L Package U Package
(SOT-223) (SOT-89)
3 INPUT INPUT
3
V OUT V OUT
2 OUTPUT 2 OUTPUT
1 ADJ/GND 1 ADJ/GND
T Package R Package
(TO-220) (TO-252)
3 INPUT
3 INPUT 2 OUTPUT
V OUT
V OUT 2 OUTPUT
1 ADJ/GND 1 ADJ/GND
S Package
(TO-263)
3 INPUT
V OUT 2 OUTPUT
1 ADJ/GND
-16-
IC Block Diagram
Pin Configurations---AS1117L-ADJ
L Package
(SOT-223)
3 INPUT
V OUT
2 OUTPUT
1 ADJ/GND
PIN ASSIGNMENT
The package of AX3113 is SOP-8L; the pin assignment is given by:
Name Description
FB Feedback pin
( Top View ) Power-off pin
H normal operation(Step-down)
FB 1 8 Vss EN
L Step-down operation stopped
EN 2 7 Vss (All circuits deactivated)
AX3113
Ocset 3 6 SW Add an external resistor to set max
OCSET
Vcc 4 5 SW switch output current.
VCC IC power supply pin
SOP8L
Switch pin. Connect external
SW
inductor & diode here.
VSS GND pin
-17-
IC Block Diagram
Block Diagram--EDE1116AEBG-8E-F
;3
K;3
;39
< C
< D
< E
< F
< G
< H
< I
=J
=IGN
<=JN <=IN <=H
1
< J
1
+ L
;
K;+
K,=+
K;=+
K'9 :
2
:-+N K:-+
,:-+N K,:-+
;3N K;3 :22 5
S /
/:*
:1
:-
-18-
IC Block Diagram
Block Diagram --EDE5116AJBG-8E-E
;3
K;3
;39
< G
< H
< I
=J
=IGN <=JN <=I
1
< J
1
+ L
;
K;+
K,=+
K;=+
K'9 :
2
:-+N K:-+
,:-+N K,:-+
;3N K;3 :22 5
T /
/:*
:1
:-
-19-
IC Block Diagram
EN25B64--100FIP
EN25Q128-104FIP
CS# 1 8 VCC
DO (DQ1) 2 7 NC (DQ3)
WP# (DQ2) 3 6 CLK
VSS 4 5 DI (DQ0)
8 - LEAD VDFN
16 - LEAD SOP
-20-
IC Block Diagram
IT2418
ADD0/CSN/SEN1
SCL/SCLK/MOT1
SDA/SDO/MOT0
ADD1/SDI/SEN0
GPIO0
GPIO1
DVDD
DVSS
24
23
22
21
20
19
18
17
GPIO6 25 16 GPIO2
GPIO7/BZO 26 15 GPIO3
ASS 28 14 GPIO4/BZMD0
HWMD 28 13
GPIO5/BZMD1
S0 29
IT2418 12 INTN/ACT/BZO
S1 30 11
ENC
S2 31 10
PD
S3 32 9 IFMD/OD
1
2
3
4
5
6
7
8
IADJ
CREF
S4
S6
S7
BP
AVSS
S5
LM78D05
-21-
IC Block Diagram
LM4558
MP1482DS
TOP VIEW
BS 1 8 SS
IN 2 7 EN
SW 3 6 COMP
GND 4 5 FB
-22-
IC Block Diagram
MST6M20S-LF
-23-
IC Block Diagram
MX25L6405DMI-12G
C>G*0, (+* KADDJ
4-08W J JE )901
&99 I JF )3L)3-K
.9 H JG .9 9)W J C &99
.9 G JH .9 )-L)3-J I D 4-08W
.9 F JI .9 %,WL;99 H E )901
.9 E JJ .9 5.8 G F )3L)3-K
9)W D JK 5.8
)-L)3-J C B %,WL;99
H > ?J -#B?. D?5
9)W J C &99 9)W J C &99
)-L)3-J I D 4-08W )-L)3-J I D 4-08W
%,WL;99 H E )901 %,WL;99 H E )901
5.8 G F )3L)3-K 5.8 G F )3L)3-K
*86/824 +*'0+,( *0, 54(6)0*'0+,
C>- AB- >@- ("-7+. 54(6)0*'0+,
JFK CN)-, & 9)W 9 )
IKK CN)-, & & )3L)3-K )
8 3
S
J 3L-RL )
8
HKK JEN)-, & & & 3
U -
S
I 3L-
R
HKK CN,83, & & )-L)3-J )
8 -
S
J 3L-RL )
E F %)-. & & 8 3
U -
S
I 3L-
R
C E %)-. & )901 9 3
%,WL;99 %
A 5.8 @
JJMK JJMF&
L
A JJMK JJMF&
4-08W 4O
&99 P HMH& ,
)
5.8 5
-24-
PDF "pdfFactory Pro"
www.fineprint.com.cn
IC Block Diagram
MX25L12845EMI-10G
PIN CONFIGURATION
16-PIN SOP (300mil) for MX25L6445E 16-PIN SOP (300mil) for MX25L12845E
NC/SIO3 1 16 SCLK NC/SIO3 1 16 SCLK
VCC 2 15 SI/SIO0 VCC 2 15 SI/SIO0
NC 3 14 NC NC 3 14 PO6
NC 4 13 NC PO2 4 13 PO5
NC 5 12 NC PO1 5 12 PO4
NC 6 11 NC PO0 6 11 PO3
CS# 7 10 GND CS# 7 10 GND
SO/SIO1 8 9 WP#/SIO2 SO/SIO1/PO7 8 9 WP#/SIO2
8-PIN SOP (200mil) 8-WSON (8x6mm)
CS# 1 8 VCC
CS# 1 8 VCC
2 NC/SIO3
SO/SIO1 2 7 NC/SIO3
SO/SIO1 7
WP#/SIO2 3 6 SCLK WP#/SIO2 3 6 SCLK
GND 4 5 SI/SIO0 GND 4 4 SI/SIO0
STM9435
-25-
IC Block Diagram
.
W25X40BVSNIG
PWP (TSSOP) PACKAGE
(TOP VIEW)
PVCCL 1 24 PGNDL
SD 2 23 PGNDL
PVCCL 3 22 LOUT
MUTE 4 21 BSL
LIN 5 20 AVCC
RIN 6 19 AVCC
BYPASS 7 18 GAIN0
AGND 8 17 GAIN1
AGND 9 16 BSR
PVCCR 10 15 ROUT
VCLAMP 11 14 PGNDR
PVCCR 12 13 PGNDR
PIN CONFIGURATION PAD CONFIGURATION
SOIC 150-MIL / 208-MIL WSON 6X5-MM
PIN CONFIGURATION
PDIP 300-MIL
-26-
MAIN PCB-TOP
-27-
MAIN PCB-BOT
-28-
5 4 3 2 1
DB13 DB12
RB17
2M/1206
AC2
+
C39 RB71
DB10 DB11 68U 450V(10*45) CY4 10R/1206
222/400VAC
RB14 RB19 JB4
NC/1206 2M/1206
D JB3 D
CB29 RB72
CB1 102 10R/1206
RB7 RB6 103/1KV
2M/1206 A2 RB15 RB3
2M/1206
NC/1206 56K 2W
RB5 RB4 RB29 T1
471/1206
471/1206
471/1206
471/1206
2M/1206
471/1206
471/1206
EFD33
RB66
RB63
RB64
RB65
RB68
RB69
2M/1206 2M/1206 CB8
472/630V DB5 DB6
+24V SB3100 SB3100
DB1 12 LED+
1 2
RB21 RU3B
2
RB43
LFB3 NC/1206 2M/1206
ET28D 6 QB4
QB1 DB3
2
G2 DB9 MBR20150C CB7 10N60 RB47
3 4 LL4148 SMK07N65 560K/0805
1000UF35V 1
RB9 +
G1 RB20 22R/1/8W CB6 + + CB2 CB10
CY1 CY2 RB10 1 ISENSE 224/100V
1000UF35V
3
NC/1206 22UF100V
1
471/400VAC 471/400VAC 33R/1/6W
RB16 11 RB52
NC/0805 68R/0805
3
ZDB6 RB44 RB49
UB2 15V 0R47/1206 10R/0805
CB15 1 6 0.18R/2W
GND GATE RB12
2
NC 2 5 FB
FB VDD JB10 4
1
3 4 1.5K/1/6W RB42 RB43
NC CS RB53
DRV 10K/0805 0R47/1206 0R47/1206
CX2
CB13 2 1ZDB9 ZDB7 2 7 RB2 RB48
471 27V 15V CB26
224/275VAC RB1 RB8 10R/1206 10K/0805 474/50V
10R/1206
2
CB9
1 1 RB19
1
2 102
10R/1206