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TCL L32D2710, Руководство по обслуживанию

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TCL L32D2710 Скачать руководство пользователя страница 33

Trouble Shooting

| 

Function Trouble

（

TV video

）

TV can’t search any 

channel/no picture

Confirm if the RF 

cable do have signal 

N

Check external 

RF

signal source

Y

Check if U3 pin3,10,18,23 for 3.3Vor 3v? 

Check the

power 

supply 

circuit

Y

N

Check if U3-pin6,7 has

data for I

2

C

N

Y

Check if U3-pin12&13 have data

N

Check the circuit

from U3 pin12&13 to

U6 and the power 

supply for U6

Y

Check  if  U3 pin14 for variational

voltage is nomal

Check the 

circuit

in this part

N

Y

Change U3

Check the

I

2

C circuit

Содержание L32D2710

Страница 1: ...on 3 Alignment Procedure 4 Block diagram 5 Scheme Diagram 6 Troubleshooting SORGH GUDZLQJ This m anual i s t he l atest at t he t ime of pr inting and doe s not include the modification which may be m...

Страница 2: ...ectric shock to the person The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the liter...

Страница 3: ...impact of any kind Be particularly careful not to damage the picture tube surface 9 Unplug this television set from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use...

Страница 4: ...ng conductors location of antenna discharge unit connection to grounding electrode and requirements for the grounding electrode 15 2 Note to CATV system installer Only for the television set with CATV...

Страница 5: ...durein youroperatinginstructions do not attempt any further adjustment Unplug the set and call your dealer or service technician 22 Whenever the television set is damaged or fails or a distinct change...

Страница 6: ...lay Resolution 1366 768 CCD Closed Caption Brightness cd m2 typ 240 Sleep Timer Yes Contrast Ratio 3000 1 Teletext Option Response Time G to G 6 5ms Nicam Option Viewing Angle H V 178 178 MTS Life Tim...

Страница 7: ...47 Gross Weight With Packaging Kg 5 88 VESA Mounting Dimensions LxH mm 200X150 Essential Accessories Default Optional Accessories Operation Manual English Default Wall Mount WMB233 Remote Control and...

Страница 8: ...1 7 7 727 Alignment Procedure 02 06 39 06 397 06 97 6HULHV VERSION V1 0 PREPARED BY DATE 2014 5 6 APPROVED BY DATE CRT SJ FK02 2013...

Страница 9: ...2 FACTORY MENU OPERATING MANUAL 1 1 COMMONLY USED 2 2 TO ENTER FACTORY MENU 2 3 ADC ADJUST 2 4 GENERAL SETING 3 5 DEBUG 4 6 SW INFORMATION 6 7 INIT TV 6 8 INIT FAC CHANEL 6 9 BURN MODE 6 V1 2 2012 01...

Страница 10: ...ance First item of GENERAL SETTING 1 3 PQ picture quality DEBUG PQ NONLINEAR 1 4 Volume Last item of GENERAL SETING 2 TO ENTER FACTORY MENU 2 1 Method Press menu key and follow with key 1 1 4 7 one by...

Страница 11: ...3 4 GENERAL SETING 4 2 W B ADJUST USUALLY USED Go to the white balance adjusting page 4 3 PICTURE MODE 7R FKDQJH 3DUDPHWHUV IRU GLIIHUHQW SLFWXUH PRGH OLNH PLOG ZRUP 4 4 Sound Mode 7R FKDQJH 3DUDPHWHU...

Страница 12: ...l 4 8 LVDS MAP Press to change the LVDS map Caution Press this may close the output signal you just keep press left or right or ok and never press any key else especially key up and down 4 9 POWER MAP...

Страница 13: ...saturation page 5 36 Hue Curve To change the hue page 5 37 Sharpness Curve To change the sharpness page 5 38 Volume Curve To change the volume page 5 39 All the CURVE are almost the same so I only sh...

Страница 14: ...ANUAL 6 6 SW INFORMATION Press to show the detail of the software like the time and the checksum 7 INIT TV Initialize the TV totally reset the EEPROM 8 INIT FAC CHANEL Initialize the factory channel 9...

Страница 15: ...Signal Flow Diagram Signal Flow MST3M182VGC LF Z1 HDMI IN TUNER SPI FLASH 32Mbits PANEL LVDS OUT RF Y Pb Pr L R AV L R USB IN AV AV_L AV_R YPbPr VGA or Y PB PR L R AV IN HDMI VGA AV OUT AMP OB6220RVPA...

Страница 16: ...Signal Flow Diagram Power Supply Flow AC input EMI filter Recti fier Power converto r Output filter 19V 24V output ON 0FF ADJ PWM Feed back LED LED driver...

Страница 17: ...Signal Flow Diagram Power Supply Flow DC DC LDO LDO LDO LDO LDO LDO DC DC 12V 5V STB 5V OFF 3V3 STB 2V5 1V8 DDR VDD 3V3 1V2 AVDD3V VDD 1V2 VDD 3V3...

Страница 18: ...Signal Flow Diagram I C Bus Block Diagram MST3M182VGC LF Z1 CPU SCL SDA EEPROM TCON SCL SDA HDMI TUNER SCL SDA SCL SDA...

Страница 19: ...3 ZB101 DB105 3 4 PCB102B 1 2 PCB102A 1 2 PCB101A 3 4 PCB101B RB141 RB142 RB143 RB101 RB102 RB103 RB106 RB108 RB136 UB102 1 1 2 2 3 3 ZB102 1 2 3 4 CNB3 RB123 RB124 RB126 RB127 RB129 RB128 RB130 RB140...

Страница 20: ...RB829 RB830 RB831 RB832 RB838 RB839 RB842 RB840 RB841 DB804 DVCC RB807 BB801 RB808 RB801 CB807 RB803 CB806 RB804 CB805 RB805 CB804 CB801 1 2 3 4 5 6 7 8 UB801 RB852 QB804 RB818 RB819 QB803 RB822 CB80...

Страница 21: ...03 X5R 20 6 3V CC2 10uF 0603 X5R 20 6 3V 5V OFF R34 NC 510ohm 0402 5 1 16W R37 NC 10Kohm 0402 5 1 16W Q9 NC MMBT3904 f 350MHz R35 NC 1Kohm 0402 5 1 16W C9 NC 1uF 0402 X5R 20 6 3V BL ADJ R54 NC 4K7ohm...

Страница 22: ...P IN YP P P IN R23 33ohm 0402 5 1 16W YP P P IN YP P YIN YP P P IN CL12 0 1uF 0402 Y5V 80 20 16V CL11 0 1uF 0402 Y5V 80 20 16V CL13 NC 0 1uF 0402 Y5V 80 20 16V 2 1 4 3 6 5 AV12 AV3 120B02 03Z1 HOTPLUG...

Страница 23: ...pF 0402 NPO 5 50V op 2 1 4 2 5 6 7 8 18 p 17 16 p 15 10 o 9 f 2 1 f 1 24 23 f1p 22 f1 21 f2p 20 f2 19 25 11 fp 12 14 fp p 13 3 U3 R620D CT7 10pF 0402 NPO 5 50V RT2 5R1ohm 0402 5 1 16W RT5 0ohm 0402 5...

Страница 24: ...UART RX DDC UART TX DDC RXD TXD YP P SOG YP P Y IN YP P P IN YP P P IN GIN2M PC YP P L IN PC YP P R IN AV RO CVBS OUT AV LO AV IN AV RIN AV LIN VCOM0 USB0 DP USB0 DM USB1 DP USB1 DM AMP MUTE POW EN P...

Страница 25: ...R 20 BSNR 21 BSNL 22 OUTNL 23 PGND 24 OUTPL 25 BSPL 26 PVCCL 27 PVCCL 28 UA31 TPA3110LD2PWPR GND GND GND CA54 0 22uF 0402 Y5V 80 20 16V CA53 0 22uF 0402 Y5V 80 20 16V CA47 0 22uF 0402 Y5V 80 20 16V CA...

Страница 26: ...components damage or not Check the rectifier Check if output short Check if RB148 open Non output IR indicator light slake Check if 12V output normal Check if EB1 voltage about 2Vac Check if UB101 PIN...

Страница 27: ...heck ADJ PWM ON OFF Control signal Check Main board function Change damage resistors Check if LED output short IR indicator light up but backlight slake Check if LED output cable is connect correction...

Страница 28: ...V output check the external power supply Power on Check EA3 for 5V_STB output Check UL2 for 3 3V UL3 for 1 8V output Check the circuit of UL2 UL3 Check the circuit of U2 Check UC1 for 1 2V output Y N...

Страница 29: ...cable is correct and connected tightly Check if the LCD panel is OK Change the cable for panel Y N Change LCD N Y 1 Check the output circuit from U6 to CN15 2 Change U6 No TCON Check the output circu...

Страница 30: ...depend on panel N Y Is there voltage on grid of QM4 can changed 12 0V or 5V 0 Is there output signal from U6 Panel cable is ill connected or QM4 is damaged Check if the circuit of QM5is normal N Y Ch...

Страница 31: ...black screen Black screen Check if the voltage on CN1 BL ON is high Check the control circuit from BL ON to U6 or U6 is damaged N N Y Y Repair the power supply The inverter is damaged Check if the pow...

Страница 32: ...UA31 Repair the UA31 power supply Check the set of volume Mute is normal Rest it Check signal output of UA31 is normal Y N Check external speaker N Y Repair the circuit between U6 and UA31 or U6 is il...

Страница 33: ...source Y Check if U3 pin3 10 18 23 for 3 3Vor 3v Check the power supply circuit Y N Check if U3 pin6 7 has data for I2C N Y Check if U3 pin12 13 have data N Check the circuit from U3 pin12 13 to U6 a...

Страница 34: ...ng No signal Do auto adjust process Check if the R G B input signal of U6 is normal Do reset process on the menu Y N Check the circuit of R G B input Check if the signal of V sync H sync is OK Check t...

Страница 35: ...as the signal HDMI does not has the signal CVBS does not has the signal Change U6 Check the circuit between AV5 and U6 1 HDMI interface false welding 2 System setting wrong do reset Check signal of U6...

Страница 36: ......

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