Hitachi 8M79B, CDH-LE42FD08, Philco PLD3212HT Schematic

SERVICE MANUAL

8M79B CHASSIS

Description:

MODEL.

Engineering Dept:

Artwork By:

Checked By:

Approved By:

Brand Name:

JOB NO.

Date:

Date:

Date:

SERVICE MANUAL 8M79B

2012-02-04

SKYWORTH

SIZE:A5

Design and specifications are subject to change without prior notice.

(Only Referrence)

Content-------------------------------------------------------------------------------2

Technical Specification-----------------------------------------------------------3-13
8M79 Block Diagram -------------------------------------------------------------14

List of key parts---------------------------------------------------------------------15

IC BLOCK Diagram----------------------------------------------------------------16-29

MAIN PCB-TOP--------------------------------------------------------------------30
MAIN PCB-BOT--------------------------------------------------------------------31
Circuit Diagrams--------------------------------------------------------------------32-40

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LCD 8M79B chassis.

-3-

4.

65
120

For 32LED

For 42LED

Base on different order

5.

-4-

93

93

95

95

400

450

97

97

FOR 32LED

FOR 42LED

For 42LED

For 42LED

9800

８
８

12500

12500(266, 276)
9800(280, 290)
6500(313, 329)

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１０ １５

24

40

40

3

1

4.2
50

2

80

0.5
12000

40

6

-6-

1080

1920

For 42LED
For 42LED

40

NO

YES

8
6

46

46

NO

Standard

Standard

20

uv

uv

English

No

Middle

-7-

Base on different order

"Low" in some status

4

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DTV-PRODUCTOINS SPECIFICATION

Model #

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) LED
Market Position (High/Mid/Access,,,) Class
Cabinet Design (Example: 01,23 series ) E72
Product Nb ­Chassis solution MSD309 + ISDB-T Demod
Chassis name 8M79B

Chassis PCB Standard Skyworth RGB New Standard

Predecessor (replace) ­MP date requested (ETD) 2011.8
MP date confirmed by supplier (ETD/ETA) ­Status( Pre./Finish ) -

Regional requirement

Homologation (Gostandard/CE/MPTT/CB/…) CB

42"～55"

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) 42", 47",55"
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 42/47/55:1920x1080

Dynamic contrast ratio
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

Colour preset (Cool/Normal/Warm/Personal) Neutral, Cool, Warm and Personal in PC mode

>10000：1

Picture control ( Bright/Con./Sharpness/Color/Tint/…) Yes
Picture presets : Standard / Bright / Soft / User Normal / Soft / Personal / Bright

-9-

Picture freeze Yes
Multi picture : PIP ( AV )/POP（AV）

Dynamic Backlight Control No

LED Backlight Yes
Deinterlacer (No/linerar/motion adaptive/motion

compensative)
Film mode / reverse 3:2/2:2 pull down Yes / Yes

Full HD support ( 1080P ) Yes
Single scan / Dual scan ( 120HZ ) 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
3D Panel Type(PR / SG) PR
3D Mode Left/Right, Up/Down, Frame Sequence
3D To 2D (Y/N) Yes
2D To 3D (Y/N) Yes
Left / Right Swap (For PR Panel) Yes

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 / Film / News / 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）

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

VHF 177-213 MHZ, UHF 473-803 MHZ

3D motion adaptive

No

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)

Compatible video format if DVD/USB:
DviX/VCD/SVCD/JPEG/AVI/MPEG2/WMV- HD/SD

JPEG/MPEG2/MPEG4/H.264/DivX (depending on license)

Up to 1080P 24/50/60HZ

-10-

Compatible audio format if DVD/USB:

)

t

MP3/WMA/AAC/MPEG1/…
Playable Discs (CD/CD-R(RW)/CD-ROM/DVD+R/+RW/­R/-RW
Card reader format compatibility No
Macrovision Yes
PVR

Network No

User convenience

OSD Language* English/Spanish/Portuguese/French
OSD Positioning No

OSD Transparency Adjus
OSD Timeout Adjust No
Customer Brand name(LOGO) Yes
IB languages English
ATV Program Numbers (example: 99+3AV input ) 99+7AV

DTV Program Numbers 370
Program edit ( naming , sorting , skip , swap …. ) Skip / Delete
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

)
Main switch button (yes/No) Yes

CCD（Closed Caption)/V-CHIP
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

certain channel)
Parent Control - Child lock (set the lock of the keyboard,

only the RCU can control the TV)
Parent Control - Kid pass (preset the ontime, channel for

each day of the week)
Parent Control - Channel lock (For digital transmission

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

MP3/WMA(depending on license)

No

Yes（FOR USB）

No

Vol+/-; CH+/-, Menu ,Source,Standby(optional)

Yes/No

Yes

No

No

Yes

Factory reset Yes

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Screen saver Yes
Blue Back No
LED indicator(Power on/Standby) Blue / Red

Connectors

RF Input (Antenna): Air/ Cable/ 2in1 Air+Cable
Scart : CVBS in&out / RGB / S-VIDEO No
CINCH video in / out（AV1）

CINCH audio in / out (No volumpe control on Audio
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) No
Headphone output connector (mm) No
CINCH subwoofer out / Coaxial out (S/PDIF)
RS232 ( Y/N , VGA or DB9 port …) No
Card Readers No

-Rear

No

No

S/PDIF out ( Coaxial ）

USB slot (No/1.1/2)

DVB-CI (common interface) No
External power converter input No

Connectors

HDMI 1

AV-IN 1

AV-OUT No

Component Video Input (YCrCb/YPrPb) 1
Component Audio Input (YCrCb/YPrPb) 1 (Share with AV audio in)
Headphone output connector (dia.mm)
CINCH subwoofer out / Coaxial out (S/PDIF) No

USB slot (No/1.1/2)

DVB-CI (common interface) No
DLNA No

UI/RC

UI design (font/pixel, 2D/3D graphic engine..)
RC Model
RC system
RC # of keys

Accessories included

Carton (English/French/Spanish) English

-Side

1 (Software update, JPEG, MP3, WMA, RMVB, DivX) Multimedia

depends on license

1（3.5mm)

1 (Software update, JPEG, MP3, WMA, RMVB, DivX) Multimedia

depends on license

SOD Standard

YK76B3 ( Toshiba code)

RGB Standard

-12-

IB English
Circuit diagram No
Batteries Yes
Product registration Card
AC Cable Length 1.8m
Audio Cord (Jack 3.5mm) No
VGA Cord No
Wallmount frame Optional
Antenna Cable No
6 in 1( YPbPr & CVBS) cable adapter No
3D Glasses Yes (2 Sets)

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

Yes（English)

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SYSTEM

POWER SUPPLY

Uplayer1

HDMI1

PR

PB

Y

R

L

Video

Optional

PIXELWORKS 3D Processor

Motion Engine

PA131DG

DVB-T&ATV
Demo d

MSD309PX-LF-SB

DVB-T & IF Demo. Build in
MPEG1/2/4 /H.264 Decoder
JPEG MP3 Decoder
3D Comb filter Video Decoder

ATV

DTV

SAW P/S

IF (ATV)

R/L

KEY PAD, IR Receiver ,Ambient Sensor

FLASH

DDRII

TPA3121
10W + 10W

Toshiba TC90517
ISDB-T Demod

IF+/-

Side Terminals

Rear Terminals

Uplayer2

HDMI2

HDMI3

PC PC Audio S/PDIF

Tuner

-14-

List of key parts

No. Name Position Type P/N

1 IR U29 HS0038B4 5300-140038-0010

2 Speaker

3 Crystal

4 Tuner U10 VA1P1BF8405 5202-45733D-7H10
5 Saw U30 F4401 4900-744015-0X00

Bass SL-R3018H-3E 5600-106154-0060

Treble YDG3040-2 5600-708254-00

Y2 49U3H 4900-125453-R000

Y1 HC-49U/S 4900-124053-R000

U3 MP1482DS 476A-M14820-0080
U5 MP1482DS 476A-M14820-0080

U50 MP1482DS 476A-M14820-0080

U51 MP1482DS 476A-M14820-0080

U9 W9751G6JB-25 4737-W97511-0840

6

IC

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

U2 MSD309PX-LF-Z1-SB 475C-M30900-5230

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IC Block Diagram

Pin Configurations---AS1117L-3.3

L Package

(SOT-223)

3

INPUT

V

OUT

2

OUTPUT

1

ADJ/GND

V

OUT

T Package

U Package

(SOT-89)

3

2

1

R Package

INPUT

OUTPUT

ADJ/GND

)252-OT()022-OT(

3

3

V

OUT

2

1

INPUT

OUTPUT

ADJ/GND

V

OUT

2

1

INPUT

OUTPUT

ADJ/GND

S Package

(TO-263)

3

V

OUT

2

1

INPUT

OUTPUT

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

EN

Ocset

Vcc

1

2

3

4

( Top View )

AX3113

8L

SOP–

FB

Vss

8

Vss

7

6

SW

EN

OCSET

SW

5

V

CC

SW

V

SS

Feedback pin
Power-off pin

HΚnormal operation(Step-down)
LΚStep-down operation stopped
(All circuits deactivated)

Add an external resistor to set max
switch output current.

IC power supply pin
Switch pin. Connect external

inductor & diode here.
GND pin

-17-

IC Block Diagram

LM4558

MP1482DS

BS

IN

SW

GND

TOP VIEW

1

2

3

4

SS

8

EN

7

COMP

6

FB

5

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