Akai LCT2785TA Service Manual Download Page 3 | Manualshive

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Summary of Contents for LCT2785TA

Page 1: ......

Page 2: ...1...

Page 3: ...0 12 0 12 0 0 1 3 124 1 3 5 3 6 27 8 6 27 1 7 12 60 26 9 1 7 12 2 1 7 12 3 1 4 2 2...

Page 4: ...12 6 6 7 1 3 0 1 3 1 3 7 3 4 4 3...

Page 5: ...2 2 3 3 4 4 5 5 9 9 8 8 7 7 6 6 1 1 H2 HOLE GND H2 HOLE GND R637 10K R637 10K 1 2 3 4 5 6 7 8 9 10 11 J6 11x1 DIP11 P2 54 J6 11x1 DIP11 P2 54 CB2 0 1uF NC CB2 0 1uF NC CB5 0 1uF CB5 0 1uF R645 10K R6...

Page 6: ...42 FB CE9 100uF 16v CE9 100uF 16v CE108 220uF 16v CE108 220uF 16v CE10 100uF 16v CE10 100uF 16v L4 FB L4 FB CE109 220uF 16v CE109 220uF 16v CB18 0 1uF CB18 0 1uF CE7 100uF 16v CE7 100uF 16v CE78 100uF...

Page 7: ...eet Checked MT8202E PBGA388 1 C 3 17 Thursday April 20 2006 AKAI_MT8202_27US_LVDS_V0 0 KAWA Confidential Designer Checker Title Size Document Number Rev Date Sheet Checked MT8202E PBGA388 1 C 3 17 Thu...

Page 8: ...10v C0805 SMD C49 10uF 10v C0805 SMD CE29 10uF 10V CE29 10uF 10V CB46 0 1uF CB46 0 1uF C20 1uF C20 1uF C11 4 7uF C11 4 7uF C3 10uF 10v C0805 SMD C3 10uF 10v C0805 SMD CE30 10uF 10V CE30 10uF 10V FB6 F...

Page 9: ...B130 0 1uF CB127 0 1uF CB127 0 1uF C55 3300pF C55 3300pF CB99 0 1uF CB99 0 1uF CB105 0 1uF CB105 0 1uF CB92 0 1uF CB92 0 1uF CB82 0 1uF CB82 0 1uF CB124 0 1uF CB124 0 1uF R80 22 R80 22 CE47 220uF 16v...

Page 10: ...21 IOVCC33 120 CGND18 113 IOGND33 106 QE7 114 QE6 115 QE8 111 QE5 116 QE1 123 RX1 58 RX1 59 QE9 110 WS 75 SCK 76 HSYNC 128 VSYNC 1 DE 127 CEN 2 SOG_IN 3 OSC_IN 4 NC 5 IOVCC33 7 IOGND33 6 NC 8 KWP 9 KS...

Page 11: ...63 1K NC R786 0 NC R786 0 NC GND 10 VCC 20 DIR 1 A0 9 A1 8 A2 7 OE 19 B7 18 A3 6 A4 5 A5 4 A6 3 A7 2 B0 11 B1 12 B2 13 B3 14 B4 15 B5 16 B6 17 U31 74LVC245A U31 74LVC245A R222 0 NC R222 0 NC R358 10k...

Page 12: ...VCC 16 I1C 10 YC 9 U39 QS3VH257 TSSOP16 SMD U39 QS3VH257 TSSOP16 SMD R373 100k R373 100k R443 0 NC R443 0 NC R368 10K R368 10K R627 0 NC R627 0 NC 1 2 3 4 5 6 7 8 J32 DIP8 W H P2 0 J32 DIP8 W H P2 0 L...

Page 13: ...L70 22 L70 22 TP54 TP54 CE126 10uF 25v CE126 10uF 25v R408 10k R408 10k 1 3 2 Q34 2N3906 Q34 2N3906 R409 10k R409 10k R750 100 R750 100 CB194 0 1uF CB194 0 1uF CE150 10uF 25V CE150 10uF 25V R246 10K...

Page 14: ...VDS_V0 0 1 C 10 17 Thursday April 13 2006 AUDIO VIDEO IN CIRCUIT KAWA Confidential Designer Checker Title Size Document Number Rev Date Sheet Checked AKAI_MT8202_27US_LVDS_V0 0 1 C 10 17 Thursday Apri...

Page 15: ...uF C641 0 1uF R159 47K R159 47K C642 0 1uF C642 0 1uF 1 3 2 D69 DIODE SMD BAV99 D69 DIODE SMD BAV99 1 3 2 D71 DIODE SMD BAV99 D71 DIODE SMD BAV99 C639 0 1uF C639 0 1uF C638 0 1uF C638 0 1uF R138 68 R1...

Page 16: ...NC R102 0 NC R102 0 NC R99 10K NC R99 10K NC R93 4 7k NC R93 4 7k NC CE95 220uF 16v NC CE95 220uF 16v NC R18 10K NC R18 10K NC 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 2...

Page 17: ...AD KAWA Confidential Designer Checker BACK LIGHT CIRCUIT KEYPAD ADC KEY GPIO KEY KEYPAD C99 1000pF C99 1000pF 1 3 2 Q32 2N3904 SOT23 SMD Q32 2N3904 SOT23 SMD R389 10K R389 10K 1 3 2 Q17 2N3904 NC Q17...

Page 18: ...3 23 GND4 24 AF MPX 14 VS_IF 13 NC 1 BT 2 AFC 7 NC 8 TU1 FQ1236 MK3 TU1 FQ1236 MK3 C646 10nF C646 10nF R422 1 8K R422 1 8K C649 820pF C649 820pF CE630 220uF 16V CE630 220uF 16V CB243 0 1uF CB243 0 1uF...

Page 19: ...101 1 8uH R133 75 R133 75 C58 47pF C58 47pF C60 47pF C60 47pF C105 220pF C105 220pF C170 47pF NC C170 47pF NC L96 1 8uH L96 1 8uH 1 3 2 D102 DIODE SMD BAV99 D102 DIODE SMD BAV99 FB27 0 FB27 0 L103 0 L...

Page 20: ...YSTAL GPIO PWM0 DIMMING GPIO PWM1 BACKLIGHT ON OFF SDA1 TO MT5351 I F REQUEST GPIO1 NO USE SCL1 TO MT5351 I F READY CCIR_V 0 3 KEYPAD DE GPIO DVD IR VCLK KEPAD CH F_A21 KEYPAD LED RED ADCIN4 FOR TUNER...

Page 21: ...R260 NC D65 SR260 NC CE166 1000uF 35v CE166 1000uF 35v R238 0 NC R238 0 NC R783 0 R783 0 R758 0 NC R758 0 NC L117 0 L117 0 CE161 2 2uF 50v CE161 2 2uF 50v R155 0 R155 0 3 1 2 4 L21 ACM3225 102 2P L2 5...

Page 22: ...IGNAL 01 INDEX AND INTERFACE 02 POWER 03 TUNER 04 MT5111 ASIC 05 MT5351 ASIC 06 MT5351 PERIPHERAL 07 DDR MEMORY 08 NOR FLASH JTAG UART GND GROUND GROUND MT5111 MT5351 REFERENCE DESIGN 4 LAYERS MT5351R...

Page 23: ...OUT 2 IN 3 L4 FB BEAD SMD 0805 CE6 220uF 16v C220UF16V D6H11 U6 AZ1117 adj SOT223 SMD ADJ GND 1 OUT 2 IN 3 CB9 0 1uF C0603 SMD U4 AZ1117 adj SOT223 SMD ADJ GND 1 OUT 2 IN 3 U2 AZ1117 adj SOT223 SMD A...

Page 24: ...FB BEAD SMD 0805 CB18 0 1uF C0603 SMD C7 1uF C0603 SMD L12 NS L IND SMD 0805 CE18 10uF 16v C10UF16V D5H11 R22 510 1 R0603 SMD R17 NS R0603 SMD R21 510 1 R0603 SMD R18 100 R0603 SMD R16 10K R0603 SMD U...

Page 25: ...pF C0603 SMD CB38 0 1uF C0603 SMD CB36 0 1uF C0603 SMD R31 4 7K R0603 SMD C13 1uF C0603 SMD QF2 2N7002 N MOSFET 2 1 3 RN12 33x4 RN0603 SMD 1 2 3 4 5 6 7 8 CB32 0 1uF C0603 SMD CB24 0 1uF C0603 SMD C11...

Page 26: ...P1 D4 APLLCAP0 E4 AGND L11 AGND L12 AGND L13 AGND M11 AGND M12 AGND M13 AGND N11 AGND N12 AGND N13 PDD0 A27 PDD1 B26 PDD2 A26 PDD3 C25 PDD4 B25 PDD5 A25 PDD6 D24 PDD7 C24 PDCD1 A28 CVDD M5 CVDD N5 CVD...

Page 27: ...CB50 4 7uF C0805 SMD CB72 0 1uF C0603 SMD R44 NS 10 R0603 SMD CB75 0 1uF C0603 SMD C29 10uF 10v C0805 SMD C104 0 1uF C0603 SMD X1 VCXO FR270003 OSC 6P SMD 7X5 CVIN 1 TRI STATE 2 GND 3 OUT 4 NC 5 VDD 6...

Page 28: ...8 R69 47 C170 0 1uF C0603 SMD RN14 22x4 1 2 3 4 5 6 7 8 R76 75 C109 0 1uF C0603 SMD R107 100 R0603 SMD U18 16M x 16 DDR TSOP 66 TSOP_0D65_22D6LX9D7W_66SP VDD 1 DQ0 2 VDDQ 3 DQ1 4 DQ2 5 VSSQ 6 DQ3 7 DQ...

Page 29: ...7K R0603 SMD C32 NS 10pF C0603 SMD CB152 0 1uF J3 10x2 DIP10X2 W H IDE P2 54 1 3 5 7 9 11 13 15 17 19 2 4 6 8 10 12 14 16 18 20 R97 0 R0603 SMD R98 4 7K R0603 SMD R83 NS 4 7K R0603 SMD CB153 0 1uF U22...

Page 30: ...y ARM 926EJ with 16K I Cache and 16K D Cache It can support 64Mb to 1Gb DDR DRAM devices with configurable 32 64 bit data bus interface MT8202 MT8202G is a highly integrated Single Chip for LCD TV sup...

Page 31: ...inary Specification MODEL NO V270B1 L01 LCD TV Head Division AVP TVHD PDD QRA Dept DDIII DDII DDI Approval Approval Approval Approval LCD TV Marketing and Product Management Division Product Manager V...

Page 32: ...TICS 3 2 3 INVERTER INTERTFACE CHARACTERISTICS 4 BLOCK DIAGRAM 12 4 1 TFT LCD MODULE 5 INTERFACE PIN CONNECTION 13 5 1 TFT LCD MODULE 5 2 BACKLIGHT UNIT 5 3 INVERTER UNIT 5 4 BLOCK DIAGRAM OF INTERFAC...

Page 33: ...REVISION HISTORY Version Date Page New Section Description Ver 1 0 Jun 15 05 All All Preliminary Specification was first issued Version 1 0 32...

Page 34: ...olor reproduction Nature color 1 3 APPLICATION TFT LCD TVs High brightness multi media displays 1 4 GENERAL SPECIFICATI0NS Item Specification Unit Note Active Area 596 259 H x 335 232 V 27 diagonal mm...

Page 35: ...splay area is less than or equal to 60 C with LCD module alone in a temperature controlled chamber Thermal management should be considered in final product design to prevent the surface temperature of...

Page 36: ...00 VRMS Power Supply Voltage VBL 0 30 V 1 Control Signal Level 0 3 7 V 1 3 Note 1 Permanent damage to the device may occur if maximum values are exceeded Functional operation should be restricted to t...

Page 37: ...Differential Input Low Threshold Voltage VLVTL 100 mV Common Input Voltage VLVC 1 125 1 25 1 375 V LVDS Interface Terminating Resistor RT 100 ohm Input High Threshold Voltage VIH 2 7 3 3 V CMOS inter...

Page 38: ...B B B B B B G G G G R R R R R R R c Vertical Stripe Pattern Active Area 3 2 BACKLIGHT INVERTER UNIT 3 2 1 CCFL Cold Cathode Fluorescent Lamp CHARACTERISTICS Ta 25 2 C Value Parameter Symbol Min Typ Ma...

Page 39: ...own below LV Gray A A A A A A A A A A A A A A 2 HV Pink HV White 1 2 HV Pink HV White 1 2 HV Pink HV White 1 2 HV Pink HV White 1 2 HV Pink HV White 1 2 HV Pink HV White 1 2 HV Pink HV White 1 Inverte...

Page 40: ...ply should be considered for the changing loading when inverter dimming 3 2 3 INVERTER INTERTFACE CHARACTERISTICS Item Symbol Test Condition Min Typ Max Unit Note ON 2 0 5 0 V On Off Control Voltage O...

Page 41: ...as the following figure 2 0V 0 8V Tr Tf Backlight on duration 0 VEPWM 3 0V VIPWM TPWMR VW Ext Dimming Function Int Dimming Function Ton Minimun Duty 100 External PWM Duty VBL VBLON VSEL 0 0 0 0 2 0V...

Page 42: ...OLTAGE INPUT CONNECTOR JAE FI X 0SSL HF 3 GND Vcc FRAME BUFFER RX0 RX1 RX2 RX3 RXCLK TIMING CONTROLLER BACKLIGHT UNIT INVERTER CONNECTOR CN1 S10B PH SM3 TB D LF JST CN2 S12B PH SM3 TB D LF JST CN3 CN9...

Page 43: ...a of pixel 3 18 RX3 Positive transmission data of pixel 3 19 GND Ground 20 GND Ground 21 GND Ground 22 GND Ground 23 GND Ground 24 GND Ground 25 GND Ground 26 VCC Power supply 5V 27 VCC Power supply 5...

Page 44: ...ge side is a model BHR 03VS 1 manufactured by JST The mating header on inverter part number is SM02 8 0 B BHS 1 TB LF or equivalent CN10 Housing ZHR 2 JST or equivalent Pin No Symbol Description Wire...

Page 45: ...ernal PWM control signal E_PWM should be connected to low when internal PWM was selected SEL low 11 I_PWM Internal PWM control signal I_PWM should be connected to ground when external PWM was selected...

Page 46: ...A DCLK Timing Controller DE B0 B7 G0 G7 R0 R7 RxOUT PLL PLL TxIN Host Graphics Controller DE B0 B7 G0 G7 R0 R7 R0 R7 Pixel R Data G0 G7 Pixel G Data B0 B7 Pixel B Data DE Data enable signal Note 1 The...

Page 47: ...OUT0 TA OUT1 TA OUT1 TA OUT2 TA OUT2 TA OUT3 TA OUT3 Rx 0 Rx 0 Rx 1 Rx 1 Rx 2 Rx 2 Rx 3 Rx 3 27 29 30 32 33 35 37 38 39 43 45 46 47 51 53 54 55 1 6 7 34 41 42 49 50 2 3 5 Rx OUT0 Rx OUT1 Rx OUT2 Rx OU...

Page 48: ...0 0 0 1 1 1 0 0 0 1 1 1 0 0 0 1 1 1 0 0 0 1 1 1 0 0 0 1 1 1 0 0 0 1 1 1 0 0 1 0 1 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

Page 49: ...57 60 63 Hz 2 Total Tv 770 795 888 Th Tv Tvd Tvb Display Tvd 768 768 768 Th Vertical Active Display Term Blank Tvb 2 27 120 Th Total Th 1436 1798 1936 Tc Th Thd Thb Display Thd 1366 1366 1366 Tc Hori...

Page 50: ...LVDS RECEIVER INTERFACE TIMING DIAGRAM Tc RXCLK RXn Tlvsu Tlvhd 14 3T 14 5T 14 7T 14 9T 14 11 T 14 13T 14 1T Version 1 0 49...

Page 51: ...system for the module input should follow the definition of Vcc Note 2 Apply the lamp voltage within the LCD operation range When the backlight turns on before the LCD operation or the LCD turns off...

Page 52: ...e shown in 7 2 The following items should be measured under the test conditions described in 7 1 and stable environment shown in Note 6 Item Symbol Condition Min Typ Max Unit Note Contrast Ratio CR 10...

Page 53: ...CR L255 L0 L255 Luminance of gray level 255 L 0 Luminance of gray level 0 CR CR 5 CR X is corresponding to the Contrast Ratio of the point X at the figure in Note 7 Note 3 Definition of Gray to Gray...

Page 54: ...n cd m2 Gray 128 D W 0 0 YA L D 8 W 2 YA D D 2 7W 8 YA R 7D 8 W 2 YA U D 2 W 8 Active Area Active Area Gray 0 Gray 0 D 4 W 4 3D 4 3W 4 0 0 YB U D 2 W 8 YB R 7D 8 W 2 YB D D 2 7W 8 YB L D 8 W 2 Gray 12...

Page 55: ...on W Measure the luminance of gray level 255 at 5 points W Maximum L 1 L 2 L 3 L 4 L 5 Minimum L 1 L 2 L 3 L 4 L 5 Horizontal Line X 3W 4 W 2 W 4 3D 4 D 2 D 4 4 3 2 1 5 Test Point X 1 to 5 W D Vertica...

Page 56: ...ion Rev XX for example A0 A1 B1 B2 or C1 C2 etc c Serial ID X X X X X X X Y M D L N N N N Serial No Product Line Year Month Date CMO Internal Use CMO Internal Use Revision CMO Internal Use Serial ID i...

Page 57: ...H 3 Weight approximately 19Kg 4 modules per box 9 2 PACKING METHOD Figures 9 1 and 9 2 are the packing method Carton dimensions 742 L x327 W x510 H mm Approx 19Kg 4modules per carton Weight Carton PE...

Page 58: ...rotector L1020 50mm 50mm Pallet L1100 W1100 H135mm Carton Label PP Belt Film PE Sheet Corrugated Fiberboard L1100 W1100mm Pallet Stack L1100 W1100 H1160mm Gross 168kg Figure 9 2 packing method Version...

Page 59: ...ly scratched 8 Moisture can easily penetrate into LCD module and may cause the damage during operation 9 High temperature or humidity may deteriorate the performance of LCD module Please store LCD mod...

Page 60: ...11 MECHANICAL CHARACTERISTICS Version 1 0 CHI MEI 59...

Page 61: ...CHI MEI Version 1 0 60...

Page 62: ...61...

Page 63: ...59 63 5 1 7 7 7 07 5 3LHFH 6 6 5 027 5 9 16 3LHFH 6 6 81 7 21 6 0 7 5 7 6 3LHFH 6 32 2 0 27720 3LHFH 6 32 2 0 723 3LHFH 6 9 32 9 3LHFH 6 9 32 0 0 00 3LHFH 6 39 6 7 3LHFH 6 6 32 5 3 6 3LHFH 6 6 7 50 1...

Page 64: ...3LHFH 6 5 66 19 57 5 3 3 3 00 00 07 3LHFH 6 5 66 3 3 3 00 9 67 1 32 5 07 25 3LHFH 6 5 6 6 5 25 20 2 0 2 3 3 3 3LHFH 6 5 6 6 5 00 0 2 02 07 9 6 1 3LHFH 6 6 7 32 05 1 52 7 3LHFH 6 63 5 2 0 3LHFH 6 63 0...

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