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SERVICE MANUAL
8M51B CHASSIS
Design and specifications are subject to change without prior notice.
SIZE:A5
(Only Referrence)
SERVICE MANUAL 8M51B
Description:
MODEL.
Brand Name:
JOB NO.
Engineering Dept:
Artwork By:
Checked By:
Approved By:
FR EEZE
PO W ER
M U TE
P.P
S.M
H O M E
SLEEP
ZO O M
R EC
C H .L IST
FAV
EPG
T.SH IF T
IND EX
INFO
SU B TIT LE
A U D IO
C C
M TS
R ETU R N
EXIT
O K
M EN U
VO L
C H
SO U R C E
1
2
3
4
5
6
7
8
9
.
0
SKYWORTH
2012-5-23
Date:
Date:
Date:
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Summary of Contents for Skyworth 8M51B
- Page 1 R ETU R N EXIT M EN U VO L SO U R C E Design and specifications are subject to change without prior notice. (Only Referrence) SERVICE MANUAL 8M51B Description: SKYWORTH MODEL. Brand Name: JOB NO. Engineering Dept: 2012-5-23...
- Page 2 Content--------------------------------------------------------------2 11-17 19-20 21-28 29-45 46-49 50-57...
- Page 3 LED 8M51B...
- Page 4 NTSC-M PAL-M PAL-N 55.25MHz ~ 127.25MHz VHF LOW 2~B 133.25MHz ~ 311.25MHz VHF HIGH C~W+11 367MHz ~ 801.25MHz W+12~69 TOSHIBA CODE Component...
- Page 5 For 32” LED For 42” LED For 47” LED...
- Page 7 (26inches is 8 ohm) DC Voltage, PANEL(12) 12000...
- Page 8 Standard Standard Spanish...
- Page 9 30000...
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Page 11: Ic Block Diagram
IC Block Diagram U2（3.3V/1A 3-TERMINAL POSITIVE VOL TAGEREGULATOR） LD1117-3.3 SOT-223 INPUT Thermal Shutdown Ou t OUTPUT GND (Fixed Output) ADJ (Adjustable Output) U50 （1.1V/3A LOW DROPOUT LINEARAR REGULATOR）AOZ1051PI SO-8 Internal UVLO 5V LDO & POR Regulator ISen Reference Softstart – &... - Page 12 U3 （2.5V/1A ）AS1117L-ADJ A1 SOT-223 INPUT Thermal Shutdown OUTPUT GND (Fixed Output) ADJ (Adjustable Output) U19 （1.2V/1A）AP1122EG-13 SOT223-3L Vout 1.2V CURRENT LIMIT Thermal Shutdown...
- Page 13 IC Block Diagram U9(LCDTV CONTROLLER WITH VIDEO ECODE)MSD6329SV-Z1-SVN MSTAR...
- Page 21 IC Block Diagram U1(DUAL BTL CLASS D AUDIO AMPLIFIER) TAS5707 OUT_A 7 BQ ´ 2 HB FET Out Serial OUT_B Order SDIN Audio Noise Port Shaper 7 BQ OUT_C ´ 2 HB FET Out OUT_D mDAP Protection Logic Click and Pop MCLK Sample Rate Control...
- Page 22 1.5V/5A AS1084R/TR LF ADJUSTABLE TO 252 U59 5V/2A MP1494DJ LF Z TSOT 23 8 3.3V/5A AS1084R 3.3/TR LF TO 252...
- Page 24 U16 64M X 16 BIT G DIE DDR3 1333 SDRAM FBGA 96...
- Page 25 U17 128M X 16 BIT G DIE DDR3 1333 SDRAM FBGA 96...
- Page 26 U8 16MB SPI FLASH SOP 8 U21 2G BIT CMOS NAND EEPROM TSOPI48...
- Page 28 Main PCB Top/Bottom Layer...
- Page 29 Main PCB Top/Bottom Layer...
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Page 30: Service Adjustment
8M51B Service Adjustment (V0. 1) - Page 31 1. How to enter and exit factory mode Press Source button, and then press digital button “3”, “1”, “9”, “5” in turns to enter the factory menu. Press button to choose the item press OK button to enter the submenu and press button to adjust the value.
- Page 32 Tessellated white and black Note: 1. The YPBPR and VGA’s Auto White Balance adjust (AUTO ADC) must be done on the product line. 2. In YPBPR channel, must adjust the SD and HD two modes. 5. How to adjust White Balance Enter factory mode, select W/B ADJUST and go to the “MODE”...
- Page 33 (2) Connect the debug tool to the device, turn on TV. Press “Connect” button. (3) Press “Read” button to choose the MBoot file.
- Page 34 (4) Press “Auto” button, set parameter. (5) Press “Run” button to begin program. (6) If program success, it will show “Pass” message, otherwise, you need to reconnect and try again.
- Page 35 (2) Enter into factory mode then set the “I2C BUS” to off. (3) Put the code bar spear on the code bar then press the switch to begin burning. (4) After burning, set the “I2C BUS” to on. 9. ESN master(24C08 E2PROM) Note: 8M51B use the 24C04 on the board.
- Page 36 ADC ADJUST MODE W/B ADJUST MODE Panel control TI Mode On/Off On/Off : adjust the TI mode of LVDS ) t i e t i Top/Bottom/Left/Right SYSTEM SETTING Fac.Hotkey On/Off Factory hot key enable s i l l i z e l i - f f l value to factory default...
- Page 37 Analog Curve Mode BRIGHTNESS CONTRAST SATURATION SHARPNESS VOLUME PICTURE MODE Startup Source MODE Natural/Cinema/Favorite/Game/Dynamic BRIGHTNESS CONTRAST COLOR SHARPNESS TINT Mac Address Update HDCP Key Update CI PLUS Key UPDATE No use SOFTWARE UPDATE(USB) SW INFORMATION SSC SETTING VIF INITIALIZATION PIP/POP PIP/POP PIP Border Width 3D Output Mode...
- Page 38 External Schematic and Connections Note: The graphics are for representation only. Front view Power indicator / Remote sensor Speakers Standby Button Source Button Menu Button Volume Down/Up Button Channel Down/Up Button...
- Page 39 External Schematic and Connections Note: The graphics are for representation only. Back view Side and Rear AV terminals view USB1/2 HDMI1/2/3/4 PC-RGB input PC-RGB audio input RF input YPbPr input AV input Earphone output S/PDIF output CABLE HDMI1 HDMI2 PC-RGB PC-RGB USB1 HDMI IN...
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Page 40: Remote Control Descriptions
Remote Control Descriptions 1. Standby( Press to turn the TV on or off(standby). FREEZE POWER MUTE 2. Freeze Press to freeze or unfreeze the picture. HOME Note: This button is useless in USB channel. SLEEP ZOOM 3. Mute CH.LIST Press to mute or restore the volume. 4. - Page 41 Remote Control Descriptions Control Buttons Fast Backward ( FREEZE POWER MUTE Press to fast reverse. Fast Forward ( Press to fast forward. HOME SLEEP ZOOM Previous ( Press to play the previous file. CH.LIST Next ( Press to play the next file.
- Page 42 Remote Control Descriptions 21. NETFLIX Connect to Netflix. MUTE FREEZE POWER 22. Up/Down/Left/Right Cursor HOME SLEEP ZOOM Press to select and adjust the desired item on the menu. CH.LIST Note: In USB mode, press " " can show the control menu, press " "...
- Page 43 Welcome setting & Home Initial setup The first time you power on the TV, there will show a setup wizard, please follow the wizard: Step 1.Select the language you need. Step 2.Select the time zone of you place. (Note 1) Step 3.Select the picture mode you like.
- Page 44 Welcome setting & Home Network setting Wi-Fi Network Plug a Wi-Fi dongle to the USB socket. Press "HOME" key enters the home page. Select SETTING item, press "OK"key to open the SETTING page. Select "Network Setting" item, press "OK" key to open the page. Press "...
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Page 45: Pvr & Time Shift
PVR & Time Shift Press "REC" key to record. Press [ ] key to exit record. Press [ ] key to play or pause the recording program. Press [ ] / [ ] key to display or hide the control menu. Press [INDEX] button to... -
Page 46: Menu Setting
MENU setting Menu Operation Press "MENU" key to enter the main menu . Press the[ ] / [ ] guide key to select desired item. Press "OK" key to enter the item. Press "MENU" key to exit the item. Picture Picture Mode Cinema Color Temperature... - Page 47 MENU setting Audio Sound Mode Standard Balance surround sound Perfect Volume Digital Audio Output Audio Delay AUDIO Sound Mode: Contain "Standard", "Music", "Movie", "Speech" and "Favorite". Balance: Control the sound balance between the right and left loudspeaker (earphone). Surround Sound: Contain On and Off. Perfect Volume: Contain On and Off.
- Page 48 MENU setting Setup Auto Tnuing DTV Manual Tuning TV Manual Tuning Channel Edit Signal Information SETUP Auto Tuning: Search and save all programs at current source by automatically. DTV Manual Tuning: Search and save the digital programs at AIR source by manually. TV Manual Tuning: Search and save the analog programs at current source by manually.
- Page 49 MENU setting Lock Lock System Set Password Block Program Parental Guidance LOCK Lock system: Switch the lock system between On and Off. Set Password: Reset the password. Block Program: Set the blocked programmers you desired. Parental Guidance: Set the parental controlling level.
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Page 50: Usb Control
USB Control Gentle Reminder When Using The USB Player 1.Some USB storage devices may not be compatible to operate smoothly with this TV. 2.Back up all of the data in the USB storage device in case if data was lost due to unexpected accident. - Page 51 USB Control USB File Playback Support Video File Extension Container Video Codec SPEC Bit Rate Profile dat, mpg, mpeg MPG, MPEG Mpeg1,2 1080P @ 20Mbit/sec Main Profile H.264:Main Profile and High 1080P @ ts, trp, tp, m2ts MPEG2,H.264,VC1,AVS Profile@Level 4.0 20Mbit/sec MPEG2: MP@HL 1080P @...
- Page 52 USB Control Play video Press " HOME " enters the home page. Select VIDEO item, press "OK" key to open the VIDEO desired content. Press "OK" key to select the video file. Press [ ] key to play or pause. Return Press "EXIT"...
- Page 53 USB Control Play music Press "HOME" enters the home page. Select MUSIC item, press "OK" key to open the MUSIC desired content. Press "OK" key to select the music file. Press [ ] key to play or pause. Return Press "EXIT" to exit playing or go back the TITLE: xxx previous menu ALBUM: xxx...
- Page 54 USB Control Browse photo Press "HOME" enters the home page. Select PHOTO item, press "OK" key to PHOTO open the desired content. Press "OK" key to select the photo file. Press [ ] key to play or pause. Return Press "EXIT" to exit playing or go back the previous menu Photo Control Bar Skip Previous...
- Page 55 USB Control Read text Press "HOME" enters the home page. Select FILE item, press "OK" key to open the desired FILE content. Press "OK" key to select the text file. Press "EXIT" to exit reading or go back the Return previous menu.
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Page 56: Troubleshooting
Troubleshooting NO PICTURE, NO SOUND SNOWY DOTS AND INTERFERENCE If the antenna is located in the fringe area of a 1. Check if the fuse or circuit breaker is working. television signal where the signal is weak, the 2. Plug another electrical device into the outlet to picture may be marred by dots. - Page 69 1.8V_TUNER 3.3V_TUNER 3.3V_TUNER...
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