Haier L52A18 User Manual Download | Manualshive

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a

ǃ

Examine whether the 5pin UA7 is low. signal

b

ǃ

Examine whether UA7 is 5V output UA7.

c

ǃ

Examine whether U1,U2 of HDTV USB Voltage Power Supply is normal.

Other

˖

Switch on power

ˈ

if 12V is low, The main reason is the power to the main board is a

short circuit

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Summary of Contents for L52A18

Page 1: ...L52A18 ...

Page 2: ... 1 Features 2 Safety Precautions 3 Images of Module and Circuit Boards 4 Trouble Shooting Guide 5 Signal Flowing Chart 6 Bus Control Adjustment 7 Circuit Diagram ...

Page 3: ...nal Yes 23 S video jack Yes Rear side 24 D SUB jack Yes 25 HDMI teminial Yes 2 line 26 Headphone jack Yes 27 Semitransparent menu Yes 28 3A Optimize Yes 29 Channel Scan Yes 30 4 3 Aspect Ratio Yes 32 Color Temperature 3 33 Scene Mode Yes 34 Multicolor Window Yes 35 MADI Yes 36 DCDI Yes 37 CCS Yes 38 3DNR Yes 39 HD format 1080P 1200P 40 Shuttle Yes 41 Channel Swap Yes 42 Auto Sync Yes 43 Omnipotent...

Page 4: ...2 Safety Precautions ...

Page 5: ... ...

Page 6: ... to board 4 Connector from Digital board to Control panel 5 PIP software update interface 6 Digital board software update interface 7 STANDBY 5V power 12V input power ON OFF form left to right is 12V 12V GND GND STB5V GND ON OFF 8 Connector for backlight on off and Dimming control form left to right is GND GND backlight on off Dimming control 12V 12V 9 LVDS interface 10 Socket between Digital boar...

Page 7: ...ket number explain 1 Audio input of USB board 2 Side AV input 3 Socket between Emulation board and output port board 4 Socket between Digital board and Emulation board 5 Power input of USB board form left to right is GND GND 5V 5V 6 Speaker interface 2 5 6 4 3 ...

Page 8: ... CNA8 on Emulation board 4 Side AV board Number Position definition 1 CN21 connect with the USB board s connector JP12 2 CN22 connect with the HUB board s connector CON6 or CON9 3 CN23 connect with the HUB board s connector CON6 or CON9 4 CN24 connect with the Emulation board s connector CNA2 2 1 1 2 3 4 ...

Page 9: ...l input be connected with the Card trough board or USB signal input 3 CON9 HUB signal input be connected with the Card trough board or USB signal input 4 CON7 HUB signal input be connected with the Card trough board or USB signal input 5 CON6 HUB signal input be connected with the Card trough board or USB signal input 1 3 2 4 5 ...

Page 10: ... 6 Power supply assembly Power supply assembly 2 1 2 3 4 5 Power supply assembly 1 ...

Page 11: ... supply1 CN4 and main board CN18 4 CN2 power supply1 24V output be connected with the pannel 5 CN2 power supply2 24V output be connected with the pannel 7 VGA board Number Position definition 1 CN14 Be connected with the Switch touch key board 2 CN11 Be connected with the main board CN13 3 CN12 Be connected with the main board CN12 4 CN13 Be connected with the Emulation board CNA7 5 VGA VGAconnect...

Page 12: ...r CON8 or CON9 2 CON2 Print signal output be connected with the Side AV board CON21 3 J2 USB video output be connected with the main board CN3 4 J4 USB audio output be connected with the Emulation board CNA1 5 CN1 5V power input be connected with the Emulation board CNA5 6 J5 Not used 7 J1 Not used 6 1 2 7 5 4 3 ...

Page 13: ...her maintenance please connect design departmentǄ Not opening machine No picture LCD is not bright Power light Are there 5V power supply output Not bright red Are there 12V power supply output No Are the power ON OFF signal normal Yes Change power board No Change main board Yes Change power board No Yes ...

Page 14: ...l Phenomenon 4 there is no picture no LOGO picture a Examine whether the power supply of Main Board is normal b Examine whether the Main Board does work c Examine whether FLI8532 clock is normal output d Examine whether LVDS signal jack is good Phenomenon 5 Picture is good sound is not good a Examine whether power supply of Analog Board is normal b Examine whether speakers is good c Examine whethe...

Page 15: ... UA7 is low signal bǃ Examine whether UA7 is 5V output UA7 cǃ Examine whether U1 U2 of HDTV USB Voltage Power Supply is normal Other Switch on powerˈif 12V is low The main reason is the power to the main board is a short circuit ...

Page 16: ...DMI2 VGA YPbPr YCbCr USB S Video AV1 AV2 Tuner Video out Audio out HDMI Audio YPbPr YCbCr Audio VGA Audio USB Audio AV1 Audio S Video Audio AV2 Audio Speaker Bass Head Phone 4052 9021 PI5V330 FLI8532 FLI8125 LVDS Panel 4344 3450 1308 8947 358 ...

Page 17: ... adjustment Optional parameters Software versions 2ˊPicture mode Voice mode Factory_Menu_1 Source Off AV1 S Video YPbPr YCbCr VGA Auto Color ColorTemp Cool Standard Warm ColorTemp R 50 ColorTemp G 50 ColorTemp B 50 Logo On Off USB On Off Power On On Off Last Woofer On Off Preset Signal Reset E2PROM Version L_FLI8532_LG37_CHI_051021 L_FLI8125_LG37_CHI_051021 Factory_Menu_2 Picture Mode Standard Bri...

Page 18: ...xchange switched on the television in a designated state When setup is OnˈAfter the exchange switched on the television switched on at the state When setup is Lastˈ Exchange switched on the state television before the state for the exchange of power outagesǄ 6ǃWoofer When setup is OnˈOn the show with heavy bass voice menu items When setup is Off Heavy bass voice on the menu item does not showǄ 7ǃ ...

Page 19: ... 14 3 13 4 12 5 11 6 10 7 9 8 VCC IN EN S1a S1d S2a S2d Da Dd S1b S1c S2b S2c Db Dc GND C38 100 nF C32 100 nF R21 20 D4 5V6 Q3 MMBT3904L 3 1 2 R32 20 D12 5V6 CON1 1 2 3 4 6 5 GND1 SIG1 GND2 SIG2 SIG3 GND3 R7 57 6 C34 10uF C39 100 nF R3 57 6 R47 0R R54 100 CN9 HEADER 3x2 SM 2 4 6 1 3 5 D6 BAV99 SOT R60 20 C46 100 nF Q2 2N3904 R76 30K C40 100 nF R72 75 CN3 CON7 1 2 3 4 5 6 7 C28 100 nF D9 5V6 R51 75...

Page 20: ...8 21 23 RX2 RX2 GND RX0 RX0 GND CEC SCL GND RX1 GND RXC NC RX1 RXC SDA GND GND GND DET 5V GND GND C73 10 uF 6V3 C98 100 nF D15 ITC ESD 0603 12VA C69 100 nF C85 100 nF R273 10K R410 1 5K R106 10K C96 0 1uF R1 4K7 D45 ESD 0603 C263 10uF U4 24C02 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC D21 ITC ESD 0603 Q6 2N7002 3 2 1 U6 ANX9021T 1 2 3 4 5 6 7 8 12 15 18 21 36 41 45 49 54 53 60 64 68 72 95 9 10 1...

Page 21: ...AF26 AE24 AE25 AE26 AB26 AB25 AA26 AA25 N4 N2 M3 M1 AF15 AE15 A17 A22 B6 W24 W26 W25 D21 C22 AF12 AE12 AF9 C25 C11 AE11 AF11 AC10 M25 AD8 AE9 U17 AC5 AD7 AA2 AA3 AA4 AC22 AB23 Y23 V23 T23 P23 M23 A26 A14 D9 H23 M24 V26 V25 N17 C9 IPCLK0 AODD AVS AHS AHREF_DE DHS DVS OBUFC_CLK SCAN_EN DCLK FSBKSEL1 FSBKSEL0 FSCKE FSRAS FSWE FSCAS FSDQM0 OCM_CS0 OCM_CS1 OCM_CS2 OCM_INT1 OCM_INT2 ROM_CS OCM_RE OCM_WE...

Page 22: ...ATA0 OCMADDR17 FSCLK FSCLK FSADDR9 FSDQM3 FSWE FSBKSEL0 FSDATA7 OCMADDR6 OCMDATA1 FSCKE OCMADDR18 OCMDATA5 FSDQM3 OCMADDR1 OCMDATA11 FSADDR4 FSDATA16 FSADDR7 FSDQS2 FSDQM1 OCMADDR4 FSCS0 FSDQM0 FSCLK FSDATA12 FSDATA20 OCMADDR0 FSDQS1 GND GND 2 5V_DDR 2 5V_DDR 3 3V_I O GND 2 5V_DDR GND Flash_Power FSVREF FSVREF 3 3V_I O FSVREF 3 3V_I O GND GND GND Flash_Power FSVREF GND 3 3V_I O 2 5V_DDR GND 3 3V_I...

Page 23: ...B VOUT C272 470uF 25 V R233 47K MM4 CONN RECT 1 1 C4 470PF C258 100 nF C262 1 uF M2 CONN RECT 1 1 FB25 1 2 C7 100uF 10 V R249 2K7 FB22 1 2 L4 BEAD 1A 1 2 MM13 CONN RECT 1 1 CN20 CONN RCPT 6 1 2 3 4 5 6 R22 0R FB31 1 2 MM6 CONN RECT 1 1 R250 10K R243 1K R232 2 7K C257 47uF 10 V U18 LM1117MPX 2 5 1 3 2 4 GND VIN VOUT TAB VOUT U19 AP4953M 1 2 3 4 8 7 6 5 S G S G D D D D U26 AT1796 ADJ 1 3 2 4 5 6 VIN...

Page 24: ...56 157 159 160 162 164 165 166 167 168 169 170 171 172 174 175 176 177 178 179 180 181 182 184 185 186 187 188 189 190 191 192 194 195 196 197 199 200 201 202 204 205 206 208 198 2 3 4 5 6 7 8 155 144 134 127 120 117 99 85 50 40 46 33 29 19 12 143 133 126 119 84 45 39 28 18 32 49 98 116 154 1 163 203 193 183 173 207 161 158 17 30 31 34 35 36 37 38 41 42 43 44 47 48 51 52 53 54 59 71 83 104 101 102...

Page 25: ... 100 nF MASK11 CONN RECT 1 1 CB67 100 nF MASK6 CONN RECT 1 1 RB50 20 CB57 100 nF CB62 100 nF MASK12 CONN RECT 1 1 CNB6 HEADER 3x2 SM 2 4 6 1 3 5 RB46 20 CB66 100 nF RB51 20 CB53 100 nF CB65 100uF 6V3 CNB4 HEADER 17x2 SM 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 CB68 100 nF FBB1 1 2 FBB3 1 2 UB5 LM1117MPX 3 3 1 3 2 4 GND VIN VOUT TAB VOUT CB64 100 ...

Page 26: ...1 2 CA179 47uF 16V RA1 1K RA54 100K CA61 683 RA29 100R CA1 0 1uF RA2 1K RA41 10K CA50 22PF RA27 10K CNA1 1 2 3 RA7 100K CA76 470nF RA8 100K CA95 0 1uF UA5 R2S15900 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 REFIN INL1 INL2 INL3 RECL1 RECL2 TREL BASSL1 BASSL2 PSEUDO LOUT GND REXT CEXT NC NC SDA SCL ROUT BASSR2 BASSR1 TRER RECR2 RECR1 IINR3 INR2 INR1 VCC CA12 470nF QA...

Page 27: ... GND GND GND GND CA128 100uF 16V M9 CONN SOCKET 9 1 2 3 4 5 6 7 8 9 RA69 100R QA6 2N3904 DD6 IN5822 1 2 QA5 2N3904 1 2 3 RA114 100K CA109 0 22uF 100uF 16V CA130 UA12A LM358 3 2 1 8 4 UA10 TDA8947J 1 2 4 14 17 3 16 8 6 9 12 13 11 7 10 5 15 OUT1 GND1 OUT2 OUT3 OUT4 VCC1 VCC2 IN1 IN2 IN3 IN4 CIV SVR SGND MODE1 MODE2 GND2 CA80 1000uF 35V RA58 10K CA107 0 22uF RA43 0R RA77 0R RA59 10K DD4 IN4148 LA6 22...

Page 28: ... 2 14 3 13 4 12 5 11 6 10 7 9 8 VCC IN EN S1a S1d S2a S2d Da Dd S1b S1c S2b S2c Db Dc GND CA165 100uF 25 V CA154 0 1UF CNA8 HEADER 17x2 SM 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 CNA15 HEADER 17x2 SM 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 RA98 0R CNA18 HEADER 17x2 SM 2 4 6 8 10 12 14 16 18 20...

Page 29: ...Í Ú ª Ø Ù Ø Ð µô Ò òïô Ø Î îêêïðïô Ï ô Ý æññ ò ò ...

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