XOCECO LC32U5D Service Manual Download Page 23 | Manualshive

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21

5: input L of TV

24: input R of TV

6: output L of AVOUT

23: output R of AVOUT

11: L output

19: R output

18: SCL

17: SDA

28: +9Vpower supply

TPA3008

1: MUTE

3: R input

5: L input

20, 17: L input

41, 44: R input

15, 23, 33, 39, and 47: +18V power supply

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Summary of Contents for LC32U5D

Page 1: ...LCD TELEVISION LC U serial...

Page 2: ...block diagram Main assembly Identification criteria for the bright spot and dark spot of the LCD screen Wiring diagram Troubleshooting charts Schematic diagram CPU and TV board Schematic diagram LC 2...

Page 3: ...will result 2 5 If any foreign substance such as water liquid metal slices or other matters happens to fall into the module be sure to cut the power off immediately and do not move anything on the mod...

Page 4: ...of picture residue on the screen as commonly called ghost shadow The extent of the residual picture varies with the maker of LCD screen This phenomenon doesn t represent failure This ghost shadow may...

Page 5: ...to select adjustment items and press VOL and VOL to adjust value items press MENU to exit Note the white balance adjustment should be done under nature picture mode 3 1 Initialization Enter factory me...

Page 6: ...1280 1024 60Hz 3 3 2 Sub brightness and White balance adjustment VGA HDMI channel a Input VG 849 or VG 848 signal of VGA PROG852 640 480 75Hz and eighth level gray scale signal of PATTERN Use color an...

Page 7: ...gnal let the color coordinate of the second level and the seventh level 285 and 293 3 5 VIDEO channel adjustment TV VIDEO S VIDEO a Connect color bar signal of AV PM5518 NTSC eight level gray scale si...

Page 8: ...to the connector There appear streaks or light color on the screen Check if interfered by other equipment and if interfered possibly by the equipment like transmitting antenna non professional radio...

Page 9: ...if the input mode is correct There appears an indication outside the receivable scope Check if the TV set can receive input signal The signal is not correctly identified and VGA format is beyond the...

Page 10: ...and HDMI send to N101 N101 MST6151 is many function big dimension integrate circuit it processed HDMI A D to DA switch interlaced and non interlaced processing model switch and low voltage difference...

Page 11: ...L R BUS SCALER A D D A DEINTERLACER LVDS HDMI N101 CPU MST6151DA VIDEO DECORDER N601 TVP5147PFP MCU N801 MTV412 SDRAM N201 SDRAM N202 SIF DEC N201 LA72700 AUDIO PROCESSOR N301 R2S15900SP AUDIO AMP N4...

Page 12: ...1_C VI_2_A VI_2_B VI_2_C VI_3_A VI_3_B VI_3_C VI_4_A CVBS Y CVBS C Pb CVBS C Pr CVBS Y CVBS Y Analog Front End Sampling Clock GPIO HS CS VS VBLK FID AVID XTAL1 XTAL2 DATACLK RESETB GLCO PWDN SCL SDA Y...

Page 13: ...11 M52760 2 AFT 3 AGC 4 5 picture If input 7 sound IF input 13 SIF output 10 mono sound output 18 TV VIDEO output 14 17 5V 1 power supply...

Page 14: ...12 LA72700 5 SIF input 25 TV sound R output 26 TV sound L output 11 SDA 12 SCL 31 9Vpower supply...

Page 15: ...H sync input 19 VGA V sync input 27 28 PB input 29 30 Y input 31 HDMI G input 32 33 PR input 54 61 CCIR656 format signal input 53 CLK input 164 171 174 4 difference signal output 160 161 1 clock signa...

Page 16: ...C GND LVA0M LVA0P LVA1M LVA1P LVA2M LVA2P LVACKM LVACKP GND VDDP LVA3M LVA3P GND BYPASS GND DVI_R DVI_R GND GND DVI_G DVI_G AVDD_DVI DVI_B DVI_CK AVDD_DVI AVDD_PLL DDCD_DA GND HSYNC1 BIN1P BIN1M DVI_B...

Page 17: ...nd for Analog Blue Input from Channel 0 27 BIN0P Analog Input Analog Blue Input from Channel 0 28 GIN0M Analog Input Reference Ground for Analog Green Input from Channel 0 29 GIN0P Analog Input Analog...

Page 18: ...Output Audio Master Clock Output 188 AUSD Output Audio Serial Data Output 4mA driving strength 189 AUSCK Output Audio Serial Clock Output 4mA driving strength 190 AUWS Output Word Select Output 4mA d...

Page 19: ...Link Positive LVDS Differential Data Output 178 LVB3M Output B Link Negative LVDS Differential Data Output 175 LVB3P Output B Link Positive LVDS Differential Data Output 174 LVBCKM Output B Link Negat...

Page 20: ...03 XOUT Crystal Oscillator Output Crystal Oscillator Output 202 DDCD_DA I O w 5V tolerant HDCP Serial Bus Data DDC data of DVI port 4mA driving strength 14 DDCD_CK Input w 5V Tolerant HDCP Serial Bus...

Page 21: ...19 Pin Name Pin Type Function Pin GND Ground Ground 1 7 13 16 35 50 64 65 80 87 103 108 114 126 132 140 155 157 159 163 172 183 184 194 205 206...

Page 22: ...20 R2S15900 2 input L of AV1 27 input R of AV1 3 input L of AV2 S 26 input R of AV2 S 4 input L of YPBPR VGA HDMI 25 input R of YPBPR VGA HDMI...

Page 23: ...TV 24 input R of TV 6 output L of AVOUT 23 output R of AVOUT 11 L output 19 R output 18 SCL 17 SDA 28 9Vpower supply TPA3008 1 MUTE 3 R input 5 L input 20 17 L input 41 44 R input 15 23 33 39 and 47 1...

Page 24: ...1 N801 MST6151DA 353 61510 10 TVP5147 353 51470 10 CS4340 353 43400 30 MTV412 353 04120 10 Keypad board 667 L27U6 05 Remote control 301 RL27U6 27M RC R27M MODEL LC 23U7 203 L27U70 01 LC 23U7 203 L27U7...

Page 25: ...mm 5mm Total defected point 8 7 5 4 Notes 1 Definition of defected point bright spot dark spot It is identified as a defected point if its area exceeds 1 2 of a single picture element R G B 2 Definiti...

Page 26: ...24 Wiring diagram...

Page 27: ...d is normal Check STANDBY circuit of power supply board Press POWER button in the unit button and sensor control check the indicator Check if the PIN12 of X503 in CPU board is high level Check if the...

Page 28: ...then turn off the TV turn on again display picture Adjust CPU board again Which is no signal of channels Replacing CPU board Check if 1VPP signal and noise wave of X12 PIN 1 in the TV board Check if...

Page 29: ...1 is normal Check power supply Check PIN11 and PIN19 output wave of N301 Check PIN25 and PIN26 output wave of N201 Check PIN5 wave of N201 Check PIN11 wave of TUNER1 Replacing N401 Replacing N301 Repl...

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Page 41: ...LC 23U7 AND LC 27U7 POWER SUPPLY BOARD...

Page 42: ...L904 JCLPQ32 2 2 3 5 6 7 8 R506 470 5 D911 MURS160T3 1 2 R925 360 5 E907 470UF 16V L902 4 7mH LXET24 3 4 1 3 2 5 6 7 8 D907 1 5KE200A 1 2 D906 MURS160T3 1 2 R957 47K 5 R921 200K 5 R954 330K 5 E909 33...

Page 43: ...R538 1K 5 R523 4 7 5 C958 1UF 50V R505 510 5 1206 Q906 SPP11N60C2 2 1 3 R501 0 1 1W R552 220 5 1206 C955 0 01UF 50V E915 680UF 25V C930 0 1UF 630V C938 1UF 50V R533 2K 5 IC909 PC817A 1 2 3 4 D931 1N4...

Page 44: ...LCD S M U _Ver 1 0...

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