tsumv26k (e_u) ver1.0 ls07
TRANSCRIPT
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LCD COLOUR TV
MAINTENANCE MANUAL
MODEL: LS07 CHASSIS
Please read this manul carefully before maintenance.
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CATALOG CHAPTER1 Safety and notes ........................................................................................................2
1-1 Installation notes.............................................................................................................2 1-2 Attention points of operation and using .......................................................................2 1-3 Storage notes ..................................................................................................................2 1-4 Dismantling notes ...........................................................................................................2 1-5 High-voltage warning ....................................................................................................2
CHAPTER2 Whole machine standard and terminal functions...............................................2 2-1 Basic standards : ...............................................................................................................3 2-2 Introduction of terminals(practicality photos)...............................................................3
CHAPTER3 Main chip functions and brife introductions of power supply...........................4 3-1 Main chips and functions of LS07 chassis ...................................................................4 3-2 Pin function description of LS07 chips ...........................................................................6 3-3 Brief introduction of power supply 11
CHAPTER4 The chasis frame diagram,mainboard power supply system, mainboard interfac -e definition and the waveform of key points ...12
4-1 The chassis frame diagram...........12 4-2 Power supply system...13 4.3 The waveform of key points16
CHAPTER5 Software upgrade tooling,software upgrade instrutions,software initialization, parameter selection,software initialization,software version and the screen matching instruction ...16
5-1 Software upgrade tooling . 16 5-2 Software upgrade instrutions.. 17 5-3 Software initialization.. 18 5-4 Parameter selection........................................... ...19 5-5 Software version...........................................................................................................20 5-6 The screen matching instructions...............................................................................20
CHAPTER6 Classical accident maintenance procedures and examples ..............................20 6-1 The thinking of do not boot............................................................................................21 6-2 Common problems for reference................................................................................21
CHAPTER7 High voltage and high electric current wearing parts list................................21 CHAPTER8 Factory mode parameter setting instructions and notes ...............................22
8-1 Enter into the factory mode ........................................................................................22 8-2 Setting method of factory menu..............25 CHAPTER9 Simple debugging specification of the machine... ......25 9-1 Clear EEPROM,and set the parameters after upgrading according to the upgrade instr -uctions ....25 9-2Check each channel/source to see if the image and sound are normal...25 Appendix:LS07 chassis circuit schematic...........................................................26
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Chapter1:Safety and notes 1-1 Installation notes (1) Please don't beat or rub,scratch the surface of the CRT screen heavily,dont touch it with hand casually. (2) When the screen is dirty,please clean it with absobent cotton or cotton cloth slightly. (3) Please clean it timely when water or other viscosity pollution fall,which may make the CRT face or colour change. (4) Please dont make the LCD screen shocked by a strong external force. 1-2 Attention points of operation and using (1) Please unplug the power cable before moving LCD scree. (2) Please dont change the mainboards original setting,if not,brightness,white balance etc.may not meet the specification. (3) Radiation of long time use at room temprature is larger than at low temeperature. (4) Please note that the long displaying image may remain at the top when shutdown the machine . (5) Please avoid the impact from moble phone to protect your TV. 1-3 Storage notes (1)When store for a long time,please keep the temperature between 0to 40,dont expose the TV to the sun,the humidity should be less than 85RH. (2)Please dont put your TV under high humidity and higt temperature circumustance,e.g temperature: 60,humidity:85%RH. (3)Please dont put your TV under low temperature circumustance,e.g temperature lower than 25. 1-4 Dismantling notes (1)As LCD screen is easy to be damaged,when dismantle,please attention to protect. (2)Please attention the postion of each screw when dismantle,in case to beat the wrong position when install which
may lead to crack or slide of the face frame. (3) If you need to dismantle the power board or the mainboard,please attention the position and dirction of each
line,especially the dirction of the screen line,in case of causing accident when install.Before dismantle ,we can take some photos of the line route for the comparison of installing.
(4)After check and maintenance,please assure that there is no foreign body in the machine when install. 1-5 High-voltage warning The high-voltage of the LCD screen is generated by the power supply step-up board,without attention to exposure to high voltage,one may meet a serious electic shock.
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Chapter2: Whole machine standard and terminal functions 2-1 Basic standard
item standard
visual area 18.5 inchesopposite angles (BOE)
aspect ratio 16:9 resolving ratio 1366 x768 visual area H x V 409.8m m (H) 230.4m m (V) display colour 16.7 million contrast 1000 brightness 250cd/m2 visual angle 170(horizontal)/ 170 (vertical)
react time 5ms
backlight life 50000 hours
the parameters are for reference only,the specific should accord to the standard of the screen practicality of the batch orders
LCD Panel
colour temperature cold/hot
sound system B/GD/KIM TV function
olour system PAL / SECAM / NTSC
AV1 RCA x 1 AV2 S-Video x 1
Audio L/R x 1
aberration signal YPbPr x 1 suppot to1080P Audio L/R x 1, HDMI HDMI x1 support to1080P
plug and use
input frequency H: 31.5K -50KHz V: 60Hz to 75Hz
audio and video signal input
PC input
recommend 1024x768(60HZ)
Videooutput outputCVBS signal outputTV and AV signal ,Audio L/R x 1 two 5W innerput speakers
Audio Audio output L / R ear phone
Power power supply AC100V~240V, 50/60Hz power disipation
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2-2 Introduction of terminals(practicality photos)
ATTENTION:
1. HDMIand YpbPr suppot to 1080P 2.The recommendation resolving ratio of VGA is 1024X768 3.Both AV and S terminal use audio signal to output. 4. Av output supports Tv input /AV outputAv input /AV outputS input /AVoutput
Chapter3:Main chip functions and brife introductions of power supply
3-1 Main IC and functions of LS07
ear phone
AVinput S input
AV output
HDMI inputVGA inpiut
RF input
YpbPr input
PC audio input
YpbPr audio input
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no. item no. model main function
1 U25 TAF6-C2I21VH Tuner, output sound IF and video signal
2 U13 TSUMV26KE Processor with Video Decoder
3 U14 24LC32B/SN EEPROM
4 U15 W25X40AVSNIG Flash deposit,the control program of the whole machine is in it
5 U20 AO4083A DC switch
6 Z1 HDAF38A2D sound meter
7 Z2 HDVF38A1DC sound meter
8 U10 TDA7266SA Audio amplifier
tuner Processor with Video Decoder
sound meter
sound amplifier
flash
DC switch
storage
quartzs crystal
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3-2 Pin function description of LS07 chip 3-2-1. TSUMV26KEProcessor chip with Video signalTSUMV26KE
The following tables are the specific distribution of pin function Table1:Related pin function distribution of the machine interface unit
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Table2: Related pin function distribution of the analog interface
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Table3:Related pin function distribution of the analog audio signal input and output
Table4: Related pin function distribution of DVI/HDMI
Table5: Pin function distribution of LVDS
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Table6: Pin function distribution of the intermediate frequency signal
Table7: Pin function distribution of common input and output
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Table8: Pin function distribution of misc interface
Table9: Pin function distribution of power supply interface
3-2-2: Pin function of TAF6-C2I21VH tuner
No. Terminal name Description
1 AGC AGC voltage supply
2 NC No Connected
3 GND Address-select line
4 SCL Assemble line(clock)
5 SDA Assemble line(data)
6 5VB 5V Power supply
7 5VB 5V Power supply
8 ADC/NC Analog data conversion/ No Connected
9 +33V 33V Power supply
10 NC No Connected
11 IF1 IF Output
3-2-3W25X40AVSNIG Pin function
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Pin No. Pin Name I/O Function
1 /CS I Chip Select Input
2 DO O Data Output
3 /WP I White Protect input
4 GND Ground
5 DIO I/O Data Input/Output
6 CLK I Serial Clock Input
7 /HOLD I Output holding
8 VCC Power Supply
3-2-2:AO4803pin function Dual-channel enhanced MOSFET
pin sign function description 1 S2 source2
2 G2 gate2 3 S1 source1 4 G1 gate2
5,6 D1 drain1 7,8 D2 drain2
3.3.Brief introduction of power supply
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Chapter4: The chassis frame diagram, mainboard power supply systems,
mainboard interface definition and the waveform of key points This chapter mainly introduce the chassis frame diagram,power supply system,interface definition and each key points wave shape. 4-1 The chassis frame diagram
ACinput AC100-240V
GND
GND
ADJ
O/F
12V
12V
GND
GND
5V
5V
High-voltage AC inverter output, backlight lamp use. High voltage is dangerous!
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4-2 Power supply system Powe board has two kinds of output voltage:+12and+5
4-2-1.the logic relation diagram of main board power L31 R126 PWwave surge R138 R114 +12_INA
L2
L32 L4 L5 L18
R113 R213 R215 R214 L1 R233 R233 4-2-2.Pin voltage of the voltage adjustor on the mainboard
+12V_IN power CON14
PIN 56
reset circuit power supply
VDDPM
U20 +12V
key press supply power
AVDDMPLL
remote controller light supply power
+5V_1 power JP3
PIN34
U17
U3
U20
VDDP supply power
40V 33V,RFH(high frequency head) supply
DVD 12V supply power
TDA1517 12Vsupply power
U1 +3.3_STB
Rem
ote controller
receiver board
supply
LEDCTL
WAKEUP
Screen eletricit
+5V_2
+3.3V_2
AVDDA supply power
AVDDAV supply power
AVDDAVIFsupply power
U15,Flash supply power
VCC1.26V supply
Backlightbringhtness
tl
l
Back
light sw
itch
CON12,PIN1.2
Audio signal D
C level
U28 Audie sw
itch l
U2 Video switch
power supply
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item no. U20 U3 U4 U19 U17 U1
output
voltage
5V,12V 3.3V 1.26V 5V 5V 3.3V
4-2-3Interface definition
PIN5,6 =5V PIN7,8=12V
3.3V
3.3V 5V 1.26V
5V
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GND
GND
5V
5V
12V, 12V,OPBACK,DIMMING, GND, GND
G1,R1,IR-IN,GND,3.3V
SAR1,SAR0,GND
AMP-PR
GND
AMP-PL
GND
used for software upgrading
Used for factory
write KEY
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4.3 The waveform of key points
Chapter5: Software upgrade tooling,software upgrade instrutions ,parameter
setting,software initialization,software version and screen matching instructions 5-1 Software upgarde tooling---there are two kinds of using upgrade tooling 1.Use the combined interface(the parallel port) upgrade tooling:use the upgrade programme: ISP_Tool V4.0.5.exeand higher versions 2.Use interface upgrade tooling,use the upgrade programme: versions higher than ISP Tool V4.3exe
computer upgrade tooling LCD TV
Combined interface or USB
VGA
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5-2 Software upgrade instrutions 1.Connect the upgrade tooling well,then operate the upgrade programme
Cancel the selection in the red line frame of last picture,as following shows:
2.Select(connect)first,if normal,system will feedback the flash style of the machine chassisAs following
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3.Select (read),read the programme needs to write, as following
4.Select(auto),enter the programme writing period,you only need to press(run),you will be able to write programme. 5-3 Software initialization Afrter finishing the software upgrading,enter into the factory menu,select CLEAR EEPROMclear EEPROM.
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The system will go into standby automatically after clearing EEPROM. 5-4 Parameter selection After clearing EEPROM,you need to do some parameter selection works,for example: 5-4-1.Enter the system setting,,as the following picture.Select SYSTEM SETTING to enter:
5-4-2.You have following parameters to select in SYSTEM SETTING:
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Usually,items in the red frame need to debugt,but not everyone,the specific debugging should satisfy the actual requirements of the batch orders. 5-5 Software version Related programme information can be read from the software version,which is convenient for professors to know the software states.
5-6 Screen matching instructions
Chapter6:Classical accident maintenance procedures and examples 6-1 The thinking of dont boot
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6-2 Common problems for your reference: To speed you to dignose and solve problems,the following commom problems are offered for your reference
Symptoms Possible Reason Solutions
No picture, no sound, and no indicator light on
1.The power cord is not plugged in 2.The power is off
1.Plug in the power cord 2.Turn the power on
do not boot Check if controller receiver works normally
check if the working condition
of main IC is normal
check every voltage accord to the
mainborad power logic diagram
check if FLASH
works normally
change the main chip
check if the reset circuit works normally
Change the
main chip
check if the service circuit
works normally
check if the
assemble
check if 5V,12V are too
rush when boot
check if 5V,12V
works normally
change power board
check if each chip on the assemble
line works normally change the chip
no image
black screen
no sound
flowery or white screen
check the
backlight voltage Change the screen
check the circuit related to
the mainboard
check the screen line
check the screen and the
mainboard crossly
change the screen or examine
the mainboard
check if there is signal
entering into the main
chip of each source
check if there is signal out
from the main chip
Check if there is ou
from the amplifier
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abnormity Picture and sound with
1.Contrast, sharpness, and color are set improperly
2.Color system is improperly 3.Sound system is improperly
1.Adjust the numberical value of Contrast, sharpness, and color
2.Set the Color system to the country broadcasting standard
3.Set the Sound system to meet the countrys broadcasting standard
Picture is spotted or with snow Signal source is low-grade or the signal cord is in a lower quality Use the qualified signal cord
Contrast, brightness, color and volume are all in the minimum value or TV is in mute mode.
Adjust the value of contrast, brightness, color and volume No picture, no sound and
indicator light is green The signal cable is not correctly connected.
Connect the signal cable correctly
Blue screen, AV or SVIDEO is displayed
There is no signal input or the video cable is not connected or incorrectly connected
Connect the video cable correctly
Picture is unclear or shaking or with black horizontal strips (in VGA mode)
VGA picture is not centered
VGA picture is not correctly adjusted.
Enter SETUP menu, select Auto Tracking item to perform automatic calibration and adjust Phase to solve the problem
No sound There is no audio signal input or audio cable is not connected correctly
Connect the audio cable correctly
VGA picture display with improper color
The color temp is adjusted incorrectly by user
Readjust the color temp, or select the original color setting
HDMI source, with snow pixel of full screen The signal source is not normal Plug the HDMI cable again
The remote control does not work
Batteries are improperly installed or exhausted
1. Make sure the positive and the negative polarities are correct.
2.Check if there is a loose contact between the batteries and the springs
3.Replace the batteries
Chapter7: High voltage and high current wearing parts list The introduction of maintenance parts are for reference only, modification of parameters will not be informed any more. For accurate data and related specifications, please consult the newest data of our company.
Number Name Model number
The damageable percentage
1. Main Board JUG6.690.664-02 1
2. controller receiving board
JUG6.695.398 0.5
3. Keyboard JUG6.694.409-01 0.5
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4. Power supply IP0150207 5 5. LCD screen HT185WX1-100 0.1 6. Electronic tuner TAF6-C2I21VH 0.5
7. Dynamoelectric speaker
YDT3070-C1-5W-4 2
8. Video signal processing chip
TSUMV26KE 1
9. Audio amplifier TDA1517 1 Chapter8: Factory mode parameter setting instructions and notes
8-1 Enter into the factory mode Switch on TV set, and make it works normally: Press INPUT key on the remote control Press number keys 3138 on remote control to enter password. Finish entering the factory mode.
If you want to quit the factory mode, Please. pressPowerkey to switch off the TV. Factory menu displays as bellow
Adjust item Adjust content Adjust method Remark SYSTEM SETTING System setting key CLEAR EEPROM Clear EEPROM key AGING MODE Aging switch key
PANEL Panel parameter
select key
ADC ADJ ADC adjustment key YPBPRPC available
PICTURE MODE Picture mode key Switch the four stateSTANDARASOFTVIVIDUSERat each source
COLOR TEM Colour
temperature key Switch thethree state NORMAL
WARMCOLDat each source
SOUND MODE Sound mode key Switch the four state THEATERMUSIC USER NEWSat each source
EEPROM ADJUST NON LINEAR
MULTI-LANGUAGE Mult-country
language key
OTHER OPTION Parameter setting key
SSC SETTING Spread spectrum setting
key For EMC use
FACTORY IR Factory remote
control switch key
SOURCE Input switch key Select input signal (2) Use the key /on remote control to select items that need to adjust,use the key /to adjust them. Submenu content SYSTEM SETTING
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adjust item adjust value remark LANGUAGE OSDlanguage selectION POWER MODE boot mode once,twice boot mode switch LOGO OFF LOGO switch EQUALIZER OFF USB OFF USB switch DVD OFF DVDswitch
TUNER TAF6C2121VH switch of radio frequency head(RFH) select
INPUTTYPE 1A1S input terminal select IRTYPE G6C52R select the remote control model AUDIOTYPE 2X2W select the output power of speaker H-OVERSCAN 51 horizontal overscan V-OVERSCAN 30 vertical overscan H-CAPTION 135 horizontal center
V-CAPTION 130 vertical center
TURNOFFPANEL OFF switch of the screen when change channel or source
DEBUG ENABLE ON TTX-MTS ENABLE ON
PICTURE MODE
adjust item adjust value remark SOURCE TV reveal the present signal source PICTURE MODE USER select the picture mode to adjust CONTRAST 50 no need of adjustment BRIGHTNESS 50 no need of adjustment SATURATION 50 no need of adjustment SHARPNESS 50 no need of adjustment
COLOR TEMP
adjust item adjust value remark SOURCE TV display the present signal source COLOR TEMP NORMAL no need of adjustment R 128 no need of adjustment G 128 no need of adjustment B 123 no need of adjustment OFFSET R 128 no need of adjustment OFFSET G 128 no need of adjustment OFFSET B 128 no need of adjustment
SOUND MODE
adjust item adjust value remark SOURCE TV display the present signal sourc
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SOUND MODE NEWS select the sound mode BASS 30 no need of adjustment TREBLE 40 no need of adjustment 120HZ 90 no need of adjustment 500HZ 90 no need of adjustment 1500HZ 90 no need of adjustment 5KHZ 90 no need of adjustment 10KHZ 90 no need of adjustment AVC LEVEL 124 PRESCALE 110
NON LINEAR
adjust item adjust value remark VOLUME volume no need of adjustment BASS bass no need of adjustment TREBLE treble no need of adjustment CONTRAST contrst no need of adjustment BRIGHTNESS brightness no need of adjustment SHARPNESS sharpness no need of adjustment SATURATION saturation no need of adjustment
8-2 Setting method of factory menu
Seledt the setting item Operators can choose setting item withP+andP-key, font with background display means the item has been
chosen. PressV+key to enter sub directory. Use P+and P-keys on remote control to select up and down, then useV+andV-keys to set. (2)Most of the menu functions are open under factory mode, if need,item checking and effect test can be done by using menu . (3) TV signal switching can be done by directly pressing the number keys in factory mode .PressMENUto back to the parental catalog,pressEXIT to quit factory mode.
Chapter9:Instructions of simple factory debugging specification. 9-1 Clear EEPROM,and set the parameters after upgrading according to the upgrade instructions. 9-2 Check each channel/source to see if the image and sound are normal.
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Appendix:LS07 Chassis Circuit Schematic
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