Haier ULT-15M, Service Manual

Page 1: ... ULT 15M ...

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

Page 3: ... PAL SECAM 9 NO of preset channels 100 10 Picture mode Yes 11 Angel of view H 120e V 100e 12 Color display 16 777 216 13 Color level 16 14 OSD languages optional 15 AV stereo Yes 16 Surrounding sound No 17 Audio system DK BG I L L 18 Bass Yes 19 Balance Yes 20 Sound mode Yes 21 Mute Yes 22 NICAM Yes 23 AV input NO 24 AV output NO 25 Y CB CR YES 26 Y PB PR YES 27 S video jack Yes 28 TV in Yes ...

Page 4: ...XT Yes 34 Semitransparent menu Yes 35 ZOOM NO 36 16 9 mode NO 37 Child Lock NO 38 Quick View Yes 39 NO of built in speakers 2 40 Audio output power Built in W 2 1 5 41 Total power input W 50 42 Voltage range V 150 240 43 Power frequency Hz 50 60 44 Time of sleep timer MINS 240 45 Approval CE 46 Suitable market EU ...

Page 5: ...d Do not expose the main unit to rain or moisture Warning Do not drop or push objects into the television cabinet slots or openings Never spill any kind of liquid on the television receiver Minimum Caution If the television is to be built into a compartment or similarly enclosed the minimum distances must be maintained Heat build up can reduce the service life of your television and can also be da...

Page 6: ...the AC outlet Caution Avoid exposing the main unit to direct sunlight and other source of the heat Do not stand the television receiver directly on other produces which give off heat E g video cassette players Audio amplifiers Do not block the ventilation holes in the back cover Ventilation is essential to prevent failure of electrical component Do not squash power supply cord under the main unit ...

Page 7: ...Images of Module and Circuit Boards 1 images of Remote Board Subassembly 2 images of Control Panel Subassembly 3 images of Main Board 5 ...

Page 8: ...5ǃimages of Inverter ...

Page 9: ...y for direct drive of LEDs 14 DECDIG Decoupling digital supply 15 VP1 1st supply voltage TV processor 5V 16 PH2LF Phase 2 filter 17 PH1LF Phase 1 filter 18 GND1 Ground 1 for TV processor 19 SECPLL SECAM OLL decoupling 20 DECBG Bandgap decoupling 21 EWD AVL East West drive output or AVL capacitor 22 VDRB Vertical drive B output 23 VDRA Vertical drive A output 24 VIFIN1 IF input 1 25 VIFIN2 IF input...

Page 10: ...eft signal 50 AUDIOIN4R Audio 4 input right signal 51 CVBS4 Y4 CVBS4 Y4 input 52 C4 Chroma 4 input 53 AUDIOIN2L SSIF Audio 2 input left signal sound IF input 54 AUDIOIN2R Audio 2 input right signal 55 CVBS2 Y2 CVBS2 Y2 input 56 AUDIOIN3L Audio 3 input left signal 57 AUDIOIN3R Audio 3 input right signal 58 CVBS3 Y3 CVBS 3 Y2 input 59 C2 C3 Chroma 2 3 input 60 AUDOUTLSL Audio output for audio power ...

Page 11: ...nce voltage 0V 90 VREFAD_POS Positive reference voltage 3 3V 91 VREFAD Reference voltage for audio ADCs 3 3 2V 92 GNDA Ground 93 VDDA 1 8V Analogue supply for audio ADCs 1 8v 94 VDDA2 3 3V Supply voltage SDAC 3 3V 95 VSSadc Ground for video ADC and PLL 96 VDDadc 1 8V Supply voltage video ADC and PLL 97 INTO P0 5 External interrupt 0 or port 0 5 4mA current sinking capability for direct drive of LE...

Page 12: ... 2 INT2 Port 1 2 or external interrupt 2 127 P1 4 RX Port 1 4 or UART bus 128 P1 5TX Port 1 5 or UART bus 2 RTD2023B PIN SYMBOL DESCRIPTION 1 APLL_GND Ground for multi phase PLL 2 APLL_VDD Power for multi phase PLL 3 PLL_TEST1 Test Pin 1 Power on latch for MCU crystal location 4 PLL_TEST2 Test Pin 2 Power on latch for crystal in frequency 5 TMDS_TST TMDS_TEST Pin Power on latch for host interface ...

Page 13: ...it 4 34 V3 Video8 bit 3 35 V2 Video8 bit 2 36 V1 Video8 bit 1 37 ADC_GND ADC Ground 38 ADC_VDD ADC Power 39 V0 Video8 bit 0 40 VCLK Video8 Clock 41 NC 42 NC 43 NC 44 NC 45 NC 46 Digital 1 8V Ground GNDK 47 Digital 1 8V Power VCCK 48 COUT Crystal out 49 PWM2 Pulse width modulation output port2 50 DDCSCL1 ADC Open drain Internal 75K pull high 51 DDCSDA1 ADC Open drain Internal 75K pull high 52 DCLK ...

Page 14: ...lay B port Red Data 5 80 BRED4 Display B port Red Data 4 81 BRED3 Display B port Red Data 3 82 BRED2 Display B port Red Data 2 83 Pad 3 3V Power PVCC 84 Pad 3 3V Ground PGND 85 ABLU7 Display A port Blue Data 7 86 ABLU6 Display A port Blue Data 6 87 ABLU5 Display A port Blue Data 5 88 ABLU4 Display A port Blue Data 4 89 ABLU3 Display A port Blue Data 3 90 ABLU2 Display A port Blue Data 2 91 ABLU1 D...

Page 15: ... 119 SCLK Serial control I F clock Open drain 120 DDCSDA2 DVI Open drain Internal 75K pull high 121 DDCSCL2 DVI Open drain Internal 75K pull high 122 PWM0 Pulse width modulation output port0 123 RESET_OUT Reset out 124 33VRST_REF Reference 3 3v for Reset Out 125 DPLL_VDD Power for digital PLL 126 DPLL_GND Ground for display digital PLL 127 XO Crystal OSC output 128 XI Reference clock input from ex...

Page 16: ...V 3 LW RI SRUW ELW RI H WHUQDO PHPRU DGGUHVV 3 LW RI SRUW ELW RI H WHUQDO PHPRU DGGUHVV 3 LW RI SRUW ELW RI H WHUQDO PHPRU DGGUHVV 3 LW RI SRUW ELW RI H WHUQDO PHPRU DGGUHVV 36 1 3URJUDP VWRUDJH HQDEOH GGUHVV ODWFK HQDEOH 3 LW RI SRUW WHUQDO DFFHVV 3 LW RI SRUW GDWD DGGUHVV ELW RI H WHUQDO PHPRU 3 LW RI SRUW GDWD DGGUHVV ELW RI H WHUQDO PHPRU 3 LW RI SRUW GDWD DGGUHVV ELW RI H WHUQDO PHPRU 3 LW RI...

Page 17: ...hannel 2 7 VCC VCC is the supply voltage input 8 M SB M SB is the mute standby mode enable When held at less than 2V this signal enables the TPA1517 for standby operation When held between 3 4V and 8 8V this signal enables the TPA1517 for mute operation When held above 9 2V the TPA1517 operates normally 9 IN2 IN2 in the audio input for channel 2 10 20 GND HS GND HS are the ground and heat sink con...

Page 18: ...Trouble Shooting Guide 16 ...

Page 19: ... and Q24 or broken I O of u25 Check Q24 See power supply troble Broken pannel or LVDS Check u5 and clock circuit Check Q4 for 0 3 3v or 5 12v follow supply of panel N Y Check supply for pannel Check Q24 Broken Q24 or follow load is shorted Check CN8 or CN9 N N N N Y Y Y Y 17 ...

Page 20: ...ly of CN10 for 5V Check TV is on Turn on tv Check low voltage of Pin43 of u24 SM5964 Check supply reset crystal Check control circuit Q4 MMBT3904 N N N Y Y Check inverter for 12v Check power Broken inverter or self protect N Y 18 ...

Page 21: ...Exceptional screen Check supply of pannel Check wire and connection mode Check LCD Check output net or jack change change Reselect supply N Y N N Y Y Check u5 or clock circuit Y Repair N 19 ...

Page 22: ...tput of CN11 Y N Check speak louder N Y Check u25 Check signal input of pin1 3of u3 Y N Y N Check u3 4 6 for signal output Check u21 60 61 for signal input Y N Broken u3 or E45 Check nets between CN11 and u3 Check part nets of U21 60 61 And U3 1 9 Check audio input signal SCART U21pin56 57 AV U21 pin49 50 PC U21 pin53 54 Broken u21 or check Supply of u21 Check nets between audio input and u21 20 ...

Page 23: ... Go to no audio repair Check SAW2 AF389A2D pin 1 2 for input signal 1 Broken SAW2 2 Connection of u21 pin29 and pin30 is poor 3 U21 supply is not good 4 Change u21 1 Check net between SAW2 pin2 and C133 2 Change C133 3 Connection of D25ǃ D26 is poor Y N 21 ...

Page 24: ...Mixed voice in TV Nicam can not searched Audio system is fault Reselect Research Check picture 1 Change C113 D25ǃD26 or poor connetion 3 Change saw2 N N Y Y 22 ...

Page 25: ...ply nets Y N Check T1 pin3 for 0V Change R267 0 N Y Check T1 pin4 5 for I 2 C data Check I 2 C net Connection With U25 SM5964 16 17 N Y Check input signal of T1 pin 11 N 1 Check net between f1 pin11 and u21 pin 24 25 2 Examine u21 supply Y Check T1 pin1 for 1v Check circuit N Y 1 Check L37 L38 inside T1 2 Change T1 23 ...

Page 26: ... in cental Missing color Picture dithering No picture Auto adjust Check U5 R G B Reset Y N Check R G B circuit Check VS HS Check VS HS circuit Unmatch OSD setting reset And check input mode Check VS HS circuit Y N 24 ...

Page 27: ...BǃSCART VideoǃS VideoǃAV Missing color No signal No signal but pc RESET Check R G B circuit check input nets in SCART R G B Check VS HS circuit Check u21 supply and VS HS Check input signal for RGB of u5 Y N 25 ...

Page 28: ...PbPr_SEL RGB YPbPr_SEL 9 10 9 10 VT_SEL1 VT_SEL0 12V EARPHONE L_OUT R_OUT PSEAKER 2 3W MU TE STAND BY MUTE STANDBY 12V UOC_SCL UOC_SDA UOC_REQREAD UOC_READYCOMM UOC_REQCOMM POWER_DOWN AT24C02 DDC_SCL DDC_SDA DDC_SDA DDC_SCL 5V RESET IRQ SCL SDA 8V SCL SDA VT_SEL1 VT_SEL0 RGB YPbPr_SEL DDC_SDA DDC_SCL CPU5V PANEL INVERTER LAMP BACKLIGHT_POWER LVDS OR TTL OPTION FOR PVCC AO4405 PPWR PANEL POWER LAMP...

Page 29: ...O BURNING ON 127 1 If you want to adjust some factory setting valueˈyou must enter the factory menuDŽThe method of entering the factory menu is that pressing DISPLAYǃred keyǃgreen keyǃyellow keyǃDISPLAY successively on the remote control Usually the factory value of every TV is set OK before leaving factoryˈso we suggest that you d better not adjust it 2 You can press V ǃ V to change parameter and ...

Page 30: ...nd you could adjust carefully ADC GAIN or ADC OFFSET 2 It is used for PC VIDEO including WARM COLD NORMAL COLOR TEMP VIDEO COLOR ADJ 128 128 128 3 BRIGHTNESS 32 value 0 63 CONTRAST 20 value 0 63 If brightness is set up to the higher value in TV menu e g 80 the picture is still dark Then you can enter factory menu to adjust brightness parameter The CONTRAST is similar case 4 PAL AGC 20 value 0 63 S...

Page 31: ...5 DCXO 471 DISCO 127 AUTO It s used for adjusting NICAM It s ok when DISCO is set up to 127 2 6 AUTO POWER ON When AUTO POWER is on push the AC switch TV set will turn on automatically 7 AUTO BURNING ON When AUTO BURNING is on push the AC switch TV set will enter the burning mode you could exit it pressing the POWER DC 29 ...

Page 32: ... of File C Documents and Settings user B UR TD3C 6175 060428 1636 ddb Drawn By 01 POWER AMP 01 POWER AMP SCH 02 INPUT 02 INPUT Sch 03 RTD2523B 03 RTD2523B SCH 05 UOC31 05 UOC31 Sch 06 AUDIO 06 AUDIO Sch 07 MCU 07 MCU SCH 08 0UTPUT 08 0UTPUT Sch 04 TUNER 04 TUNER Sch Circuit Diagram 30 ...

Page 33: ...34 1N5822 SMD SMA L16 TC5026U 470K BK NA BS 1 IN 2 SW 3 GND 4 FB 5 COMP 6 EN 7 NC 8 U15 MP1410ES SO 8 C164 100pF 0603 NPO 5 50V C147 0 01uF 0603 X7R 10 50V R66 10Kohm 0603 5 1 10W C146 0 01uF 0603 X7R 10 50V R190 30 9Kohm 0603 1 1 10W R191 10Kohm 0603 5 1 10W C198 0 1uF 0603 Y5V 80 20 50V VI 3 GND 2 VO 1 U7 78L05 SOT 89 H1 TEST H2 TEST CPU5V DC_PW DC2_PW R36 NC 270ohm 0603 5 1 10W A K D11 NC 3 3V ...

Page 34: ...NKGND 18 VOUT 19 VIN 20 SHIELD 21 CN5 NC RC 2101 CS 104 GND GND GND GND GND GND GND SC1_R_IN SC1_L_IN SCART_B SC1_SWITCH SCART_G SCART_R SCART_VI CVBSO SC1_FB SC1_SWITCH R68 NC 39Kohm 0603 5 1 10W R156 NC 10Kohm 0603 5 1 10W R148 NC 75ohm 0603 5 1 10W C186 NC 100pF 0603 NPO 5 50V 5V 12V SC1_SWITCH 1 3 2 D38 NC BAV99LT1 A7 SOT 23 1 3 2 D39 NC BAV99LT1 A7 SOT 23 SCART_B SCART_G SCART_R SCART_VI CVBS...

Page 35: ...4 33ohm 0603 5 1 16W DEN DCLK DHS DVS C73 0 1uF 0603 Y 5V 80 20 50V C64 0 1uF 0603 Y 5V 80 20 50V C63 0 1uF 0603 Y 5V 80 20 50V REF DVI_SCL DVI_SDA DAGRN0 DAGRN1 DAGRN2 DAGRN3 DAGRN4 DAGRN5 DAGRN6 DAGRN7 DARED6 DARED0 DARED2 DARED4 DARED1 DARED3 DARED5 DARED7 DABLU1 DABLU7 DABLU5 DABLU0 DABLU2 DABLU3 DABLU4 DABLU6 1 3 5 7 8 6 4 2 RP14 4 33ohm 0603 5 1 16W DHS DVS DE C60 10pF 0603 N P O 5 50V C57 1...

Page 36: ...hm 0603 5 1 10W R133 10Kohm 0603 5 1 10W 5V C148 0 22uF 0603 Y5V 80 20 16V E69 10uF 25V 20 5 11 105 C155 3300pF 0603 X7R 10 50V R204 390ohm 0603 5 1 10W C75 0 1uF 0603 Y5V 80 20 50V E70 1uF 50V 20 5 11 105 E68 2 2uF 50V 20 5 11 105 8V C77 0 1uF 0603 Y5V 80 20 50V C128 0 1uF 0603 Y 5V 80 20 50V 3 5 6 7 26 54 92 R216 100ohm 0603 5 1 10W R217 100ohm 0603 5 1 10W C86 0 1uF 0603 Y5V 80 20 50V L37 GZ160...

Page 37: ... 41 Q22 MMBT3906 2A SOT 23 Q21 MMBT3906 2A SOT 23 E46 100uF 16V 20 5 11 105 GND R220 10Kohm 0603 5 1 10W R229 240ohm 0603 5 1 10W R49 1Kohm 0603 5 1 10W GND D14 LL4148 LL 34 R231 4K7ohm 0603 5 1 10W R244 1K2ohm 0603 5 1 10W Q9 MMBT3904LT1 1A SOT 23 R245 5K6ohm 0603 5 1 10W Q14 MMBT3904LT1 1A SOT 23 R221 10Kohm 0603 5 1 10W GND C120 0 1uF 0603 Y5V 80 20 50V GND GND MUTE AMP_STB Q15 MMBT3904LT1 1A S...

Page 38: ... C10 100pF 0603 NPO 5 50V C11 100pF 0603 NPO 5 50V C12 100pF 0603 NPO 5 50V C13 100pF 0603 NPO 5 50V C17 100pF 0603 NPO 5 50V SDIO DVD_STB DVD_CLK DVD_IR DVD_DAT GND 1 2 3 4 5 CN19 NC 5PIN 2 0 D H R83 NC 330ohm 0603 5 1 10W IR_IN LED_O LED_G PPWR BACKLIGHT_PW R263 4K7ohm 0603 5 1 10W R264 4K7ohm 0603 5 1 10W R266 510ohm 0603 5 1 10W R265 510ohm 0603 5 1 10W CPU5V Q1 MMBT3906 2A SOT 23 Q2 MMBT3906 ...

Page 39: ...61 NC 47uF 25V 20 5 7 105 R55 NC 4K7ohm 0603 5 1 10W R54 NC 68Kohm 0603 5 1 10W A OUTSR R22 NC 100ohm 0603 5 1 10W E6 NC 47uF 25V 20 5 7 105 C92 NC 0 1uF 0603 Y5V 80 20 50V 8V R114 NC 75ohm 0603 5 1 10W R64 NC 100ohm 0603 5 1 10W R63 NC 100ohm 0603 5 1 10W CVBS OUT A OUTSL A OUTSR DVD 5V DVD 12V 1 2 3 4 5 6 CN16 NC 6PIN 2 0 CVBSO A OUTSL A OUTSR 1 2 3 4 5 CN14 5PIN 2 0 D H DVD_STB R232 NC SDFL1608...

Page 40: ...ohm 0603 5 1 10W R143 NC 22Kohm 0603 5 1 10W R139 NC 6K8ohm 0603 5 1 10W R147 NC 560Kohm 0603 5 1 10W R150 NC 6K8ohm 0603 5 1 10W D26 0ohm 0805 A A K K D28 NC LL4148 LL 34 D25 NC BA792L8 SOD110 Q12 NC MMBT3904LT1 1A SOT 23 R140 0ohm 0603 5 1 10W OP2 R99 NC 100ohm 0603 5 1 10W C123 NC 0 1uF 0603 Y5V 80 20 50V E30 NC 47uF 25V 20 5 7 105 5V_IF L12 EC0410 101K C124 0 1uF 0603 Y5V 80 20 50V E38 47uF 25...

Page 41: ...ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ Tel 86 532 88938356 ...