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Chapter 5. Installation Instructions

Service Manual

Model No.: HL19K2

18

Over-the-air TV reception quality will depend on your antenna type, antenna location and antenna positioning.

AN

T

IN

VHF Antenna
UHF Antenna

Turn clockwise to tighten

Bronze Wire

Be careful not to bend the bronze wire
when connecting the antenna.

Bronze Wire

Multi-family Dwellings/Apartments
(Connect to wall antenna socket)
Wall Antenna
Socket

RF Coaxial Wire (75 ohm)

Single-family Dwellings /Houses
(Connect to wall jack for outdoor antenna)
Outdoor Antenna

To improve the picture quality in a poor signal

area, please purchase a signal amplifier and install
properly.

If the antenna needs to be split for two TV’s, install a

“2-Way Signal Splitter” in the connections.

To install the antenna properly please contact a

professional in your area.

Note

All cables shown are not included with the TV.

❏

ANT

IN

Accessories

Antenna Connection

Connecting a VCR

To avoid picture noise (interference), leave an adequate
distance between the VCR and TV.

VCR

VIDEO

A

V IN

AUDIO OUT

L R

L -AUDIO- R

ANT IN

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Summary of Contents for HL19K2a

Page 1: ...o service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death Haier Group 2010 Qingdao Haier Electronics Co Ltd All rights reserved Unauthorized copying and distribution is a violatio...

Page 2: ...are Parts 6 1 3 8 Photo used in this manual 6 1 4 How to Read this Service Manual 6 1 4 1 Using icons 6 Chapter 2 Speciﬁcation 2 1 Speciﬁcation list 8 2 2 External pictures four faces 9 Chapter 3 Disassemble and Assemble 11 11 11 12 12 12 Chapter 4 Location of Controls and Components 4 1 Board Location 13 4 2 Main Board 13 4 2 1 Function Description 14 4 2 2 Connector deﬁnition 14 3 1 Remove the P...

Page 3: ...agram 25 7 3 Circuit Diagram 27 7 2 Wiring Connection Diagram Chapter 8 Measurements and Adjustments 8 1 Service Mode 40 8 1 1 How to enter into Service Mode 40 8 1 2 How to exit 40 8 2 Measurements and Adjustments 40 8 2 1 Version S N Panel Resoution 40 8 2 2 Video 41 8 2 3 Audio 42 8 2 4 Channel 42 8 2 5 Gamma 44 8 2 6 Backlight 44 8 2 7 Function 45 Chapter 9 Trouble shooting 9 1 Simple check 47...

Page 4: ...nt thing is to list up the potential hazard or risk for the service personnel to open the units and disassemble the units For example we need to describe properly how to avoid the possibility to get electrical shock from the live power supply or charged electrical parts even the power is off This symbol indicates that high voltage is present inside It is dangerous to make any king of contact with ...

Page 5: ...st 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 1 3 4 About lead free solder PbF This product is manufactured using lead free solder as a part of a movement within the consumer products industry at large to be environmentally responsible Lead free...

Page 6: ...l 90 99 strength CAUTION This is a ﬂammable mixture Unless speciﬁed otherwise in this service manual lubrication of contacts is not required Capacitors may result in an explosion hazard 5 Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped 6 Do not apply AC power to this instrument and or any of its electrical assemblies unless a...

Page 7: ...nimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted ﬂoor can generate static electricity sufﬁcient to damage an ES device 1 3 7 Ordering Spare Parts Please include the following informations when you order parts Particularly the Version letter 1 Model number ...

Page 8: ...ulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury Reference A reference guides the reader to other places in this binder or in this manual where he she will ﬁnd additional information on a speciﬁc topic ...

Page 9: ...181 OSD Language English French Spanish Color System NTSC Audio System M BG I L L Audio Output Power Built in W 3W 2 Audio Output Power outer W No Total Power Input W 40W Voltage Range V AC100V 240V Power Frequency Hz 60Hz Time of Sleep Timer MINS 120Min Net Weight KG 4 Gross Weight KG 4 7 Net Dimension MM 530x176x430 Packaged Dimension MM 532x165 435 Chapter 2 Speciﬁcation 2 1 Speciﬁcation list 5...

Page 10: ...Service Manual Model No HL19SLW2 9 2 2 External pictures four faces Front Side Left Side ...

Page 11: ...Service Manual Model No HL19SLW2 10 Right Side Back Side ...

Page 12: ...indicated with U Turn to front cover upwards Then remove the front cover from the unit 1 3Remove the LCD panel Remover the six screw indicated with Remover the pin indicated with Then remove the panelU U U 1 Remove the Main Board Remover the two screw indicated with Remover the four screw indicated with Then remove the Main Board U U U 3 SGI DFWRU 3UR ZZZ ILQHSULQW FRP FQ Service Manual Model No H...

Page 13: ... screw indicated with Then remove the Keypad Assembly U 1 Remove the Speaker Remover the four screw indicated with Remover Then remove the U 6SRQJH SLHFH Speaker 1 Remove the Remote Control Board Remover the one screw indicated with Then remove the Remote Control Board U 3 SGI DFWRU 3UR ZZZ ILQHSULQW FRP FQ Service Manual Model No HL19K2 ...

Page 14: ...r screw indicated with Then remove the Speaker Remover the one screw indicated with Then remove the Remote Control Board 3 4 Remove the Speaker 3 5 Remove the Keypad Assembly 3 6 Remove the Remote Control Board Service Manual Model No HL19k2 12 ...

Page 15: ... 4 Location of Controls and Components 4 1 Board Location No Parts number Description A Board DC1470E0200M Main Board 0090724618 B Board 094001233A Power Board 4 2 Main Board Service Manual Model No HL19K2 13 ...

Page 16: ... turn on or turn off the backlight of TFT LCD Panel through the power supply unit path System board will use this pin to control system power CN1 Pin 4 Control the luminance of backlight The system can generate the PWN signal to control the strength of TFT LCD Panel s backlight through this connector CN1 Pin number Signal name Pin number Signal name 1 IR 6 12 2 5VSB 3 LED_G 4 GND 5 LED_R Keypad an...

Page 17: ...VDS EVEN 2 Signal 12 LVDS_D2E_P LVDS EVEN 2 Signal 13 GND Ground 14 LVDS_CE_N LVDS EVEN Clock Signal 15 LVDS_CE_P LVDS EVEN Clock Signal 16 GND Ground 17 LVDS_D3E_N LVDS EVEN 3 Signal 18 LVDS_D3E_P LVDS EVEN 3 Signal 19 GND Ground 20 NC NC 21 NC NC 22 NC NC 23 GND Ground 24 GND Ground 25 GND Ground 26 Panel_power Power for panel 27 Panel_power Power for panel 28 Panel_power Power for panel 29 Pane...

Page 18: ...ctor deﬁnition INPUT CONNECTOR CN10 Service Manual Model No HL19K2 16 Power supply and Inverter Connector CN10 Pin number Signal name Description 1 1 Ground 1 Ground 867 19 57 5 LJKWQHVV GMXVW 21 2 19 57 5 6ZLWFK RQWURO 9 9 Power 9 9 Power Other Connector Power supply for panel CNC2 4 4 LCD Panel ...

Page 19: ... RXIN2 Negative LVDS differential data input 2 12 RXIN2 Positive LVDS differential data input 2 13 GND Power Ground 14 RXCLKIN Negative LVDS differential clock input clock 15 RXCLKIN Positive LVDS differential data input clock 16 GND Power Ground 17 RXIN3 Negative LVDS differential data input 3 18 RXIN3 Positive LVDS differential data input 3 19 GND Power Ground 20 NC No contact For AUO internal u...

Page 20: ...l Wire 75 ohm Single family Dwellings Houses Connect to wall jack for outdoor antenna Outdoor Antenna To improve the picture quality in a poor signal area please purchase a signal amplifier and install properly If the antenna needs to be split for two TV s install a 2 Way Signal Splitter in the connections To install the antenna properly please contact a professional in your area Note All cables s...

Page 21: ...ponding external equipment B Refer to external equipment operating guide Component Setup How to connect Connect the DVD video outputs COMPONENT to A the Y Pb Pr jacks on the TV and connect the DVD audio outputs to the YPbPr Audio IN jacks on the TV as shown in the figure If your DVD only has an S VIDEO output jack connect B this to the S VIDEO input on the TV as shown in the figure Note If your DV...

Page 22: ...er you can watch cable TV programming The TV cannot display TV programming unless a TV tuner device or cable TV converter box is connected to the TV For further information regarding cable TV service contact your local cable TV service provider s Connection Option 1 Select 3 or 4 with channel switch on cable box A Tune the TV channel to the same selected output B channel on cable box Select channe...

Page 23: ... product 2 A separated audio connection is necessary 3 If the source device has an analog audio output connector connect the source device audio output to DVI Audio In port located on the left side of HDMI port How To Use If the source device supports Auto DVI function the output resolution of the source device will be automatically set to 1280x720p If the source device does not support Auto DVI y...

Page 24: ...eadphone out S VIDEO Power source TO USE AC POWER SOURCE Use the AC polarized line cord provided for operation on AC Insert the AC cord plug into a standard polarized AC outlet NOTES Ƶ Never connect the AC line cord plug to other than the specified voltage Use the attached power cord only Ƶ If the polarized AC cord does not fit into a non polarized AC outlet do not attempt to file or cut the blade...

Page 25: ... L AUDIO R L R L AUDIO R HDMI IN ANT IN DIGITAL OUT COAXIAL 1 DC IN Direct current input 2 Headphone jack Headphone audio output terminal 3 USB input Connect a USB flash drive to view JPEG images or listen to MP3 songs 4 Digital Out Connect various types of digital audio equipment 5 HDMI In Connect a HDMI device to receive digital audio and uncompressed digital video 6 VIDEO In Connect the video s...

Page 26: ...For example to enter 54 3 QSFTT i w it w BOE i w J MUTE Switches the sound on or off K ENTER Accesses the highlighted item in the on screen menu L RECALL Press to jump back and forth between two channels M USB REPEAT N USB STOP O USB Next Chapter P USB Previous Chapter Q CH LIST Open the channel list inTV R FAVORITE Open the favourite channel list inTV For TV without DVD PICTURE CCD INPUT ARC MENU...

Page 27: ...r 7 Electrical Parts 7 1 Block Diagram 25 HDMI1 VGA YPbPr tuner Composite MT5305 Main IC YPbPr Composite L R VGA P11 L R DDR Flash TDA1517 P A N E L USB LVDS EEPROM I2C Bus Service Manual Model No HL19K2 DDR ...

Page 28: ...W QXPEHU VSHFLDO QXPEHU DLHU W SH FXVWRPHU W SH Am eric a Haier 0DLQERDUG VXEDVVHPEO 3DQHO 3RZHU VXSSO ERDUG 9 6 ZLUH 6SHDNHU ZLUH 6SHDNHU 3RZHU FRUG H SDG VVHPEO 5HPRWH RQWURO RDUG VVHPEO RPELQDWLRQ ZLUH 3RZHU VXSSO DQG LQYHWHU CN3 CN1 CN 5HPRWH RDUG 6XEDVVHPEO Key RDUG 6XEDVVHPEO CN2 CN LA19 K3 W HL19 K2 32 DC1470E0100M 0090719615 DC1470E0200 AT09SR1111US01 ...

Page 29: ... I 2 0 Q CQ N Q A R NS T5 O 8UV H5W 8M 8 8N 8 G H I 0E 88J 75K5 K K 0 1 23 4 567 8 9 N N D N D 0 5 D 86 85HG 563 K O J JJU O 2J 56 56 3 K K66X 56 56 3 K H 5O 3 K H 3 K O 2J K CD 5O O 2J 6O87 K 5O 5O O 2J K 56 56 07 K T H7 K 5K 5K57 KVO O8W J 7 J2 55 K 5O V5J G 8 K66XW K66X 6O8 O 6O8 O 8 Y U Z U Service Manual Model No HL19k2 7 3 Wiring Connection Diagram 27 ...

Page 30: ...4 z 3 7eg3 1e0 y 1 7eg3 1e0 y 1 z 3 1 j 9 0 igx 4 43 0 nh 43 0 nh e 0lh e 0lh 7e 0 lhj 0 m 7e 0 lhj 0 m 7eh84 7eh84 e 3 q 0lh e 3 q 0lh 0 83 0 83 7e 03 q 0lh 7e 03 q 0lh f0 44 0 f0 44 0 e r 7fr 0 lhj q 3m e r 7fr 0 lhj q 3m 7ef0 00 r 0s 7ef0 00 r 0s f00 04q 0s f00 04q 0s 7ef4 00 r 0s 7ef4 00 r 0s e 4 0lh e 4 0lh 7ef5 00 r 0s 7ef5 00 r 0s 8 4 q 0lh 8 4 q 0lh 7e 05 lhj 0 m ghj 0 2y 4q 5y 5 7e 05 lhj...

Page 31: ...77 76 76 1 76 3 92 6 3 7 11 9 45 9 45 9 4 5 9 8 37 38 38 38 01 23456 78 17 8 9 9 2 97 79 5 93 A14B3C 93 A D3CB3C EFGGFHIJKLM NOPQIERSTJJ U89 A1V U5W6AA1V 0 XYAZ Z 0 XYAZ Z 0 XYAZ Z 0 XYAU5CA4W_5 AZ Z 267 267 21 21 42 7 42 7 217 217 21 21 2 2 7 18 6 7 18 6 2 8 7 29408 6 2990 1 2 98 9 45 92 6 2 0 8 2 038 78 77 2 76 11 71 7 34 7 445 7 6 4 7 6 4 7 6 8 7 6 8 68 6 7 67 6 7 66 6 6 61 6 6 6 11 6 76 6 404 ...

Page 32: ...2 812 5 425 Y 425 Y 4 5 Y 4 5 Y 82 55 82 55 812 812 5 42 1 W Y 42 1 W Y 4 5 Y 4 5 Y 42 Y 42 Y 82 82 825 825 4 Y 4 Y g2 1 g 5 40h 5 4 g2 1 g 5 40h 5 4 322 14 5 3 3 9 g29 3229 29 3 9 5 g2 g29 3 9 29 3229 4 29 45 3229 4 3229 4 29 4 3229 4 29 5 2 3 9 25 29 2 29 2 3 9 2 29 2 322 14 5 3 3 9 29 3229 29 3 9 5 2 29 3 9 29 3229 0 29 05 3229 0 29 0 3229 0 29 Q 3 9 Q5 29 Q 295 Q 3 9 Q 29 Q 322 i 38 i5 3 i 3 2...

Page 33: ... EF1 gE Ur3 4 UVr 81 81 7 7 88 7 7 88 7 7 7 7 6 8 6 6 8 6 7 6 8 58 34 58 34 24 3 7 9 8 90 6 9 9 1 9 66 66 7 7 7 7 48 6 5 48 6 5 7 8 6 98 39 8 7 98 39 8 7 7 8 7 8 68 7 8 68 7 8 6 9 395 1 3 2 7 7 71 71 96 39 8 71 96 39 8 71 7 8 6 6 9 39 8 7 9 39 8 7 7 8 8 6 8 6 7 6 8 8 7 8 7 7 8 7 7 8 7 96 39 8 71 96 39 8 71 7 8 17 17 7 7 8 7 8 7 76 76 1 1 8 5 6 7 8 5 6 7 7 8 6 8 8 6 8 8 6 7 6 8 7 7 6 3 7 6 3 7 7 7 ...

Page 34: ... 06 5 65 9 655 6229 622 567 8 0 1 23456789 A B CA B D A B EFG6HIJK6L6MKNOPQ6RIIS TT UV 0 TT UV 0 WXY ZA B F6 INHPQ X_ZC_D XYD a TT UV 0 b 9 c def 1 9 c def 1 d c de d c de c de c de c de c de c de c de c de c de c de c de g 1 h g 1 h i j 7 if 366 4 3 2 k5 2i d 3 g4 8 l 9 28 f 1 g4 8 l 9 28 f 1 k5 2 3 1 4 65 65 659 d 5f 65d 7 6 f 012 9 654 65 65 4 65 e 9c m 9c m Service Manual Model No HL19K2 32 ...

Page 35: ... 87 7 87 49 A 87 7 87 49 A 4 9 2 8BCD 9 2 8BCD 4 7 4 4 E FG HI J K 4 4E FG HI J 9 4K 7 7E FG HI J 7K 47 E FG HI J 44 K 4 4 4 E 49 E L 4 0 4 9 4 1E L 4 6 7 6 7 4 6 9 4 6 9 4 64 64 474 6 9 7 K 7M 474 6 9 7 K 7M 4 9 7 4NA 9 7 4NA 9 87 7 847 AM 9 87 7 847 AM 4 4 163 E 7 163 E 7 4 0 9 5 1 6 77 477 6 77 477 87 7 847 A 87 7 847 A 4 6 774 477 6 774 477 4 7 7 4NA 4 7 7 4NA 94 87 7 847 A 94 87 7 847 A 4 6 7...

Page 36: ...753 3 y t 3 z 83 83 3 4816 s 5 3 4816 s 5 95 3 95 95 79 0 05 4 55 53 3y 53 3y 53 3 w 53 3 w 0 3 w 0 3 w 3 5 w 5 w 83 3 83 3 83 3 83 3 3 0 3 w 3 0 3 w 3 5 3 5 3 8 8 x 753 3 y t 3 z x 753 3 y t 3 z x 5 3 y t 3 z x 5 3 y t 3 z t 3 6 u t 3 6 u 83 83 t 3 6 v t 3 6 v 8 8 83 3 83 3 8 8 78 3 78 3 0 3 w 0 3 w 3 83 3 83 3 8 8 75 75 53 w 53 w 83 83 5 3 5 3 8 3 8 3 7 83 7 83 183 s 3 183 s 3 8 8 153 3y 153 3y ...

Page 37: ...9 9 9A8 BCD 9 E FEA8G EHIJA 9A8IJA K9E 95 75 95 75 8 8 98 3 98 3 8 3 8 3 5 _ 5 2 5 _ 5 2 95 3 7 95 3 7 8 8 V H 8503a V H 8503a 3 b 593 _ b 593 _ 5 _ 5 _ 8 3 8 3 98 3 98 3 8 8 b 59 _ b 59 _ 95 75 95 75 c d 1 3 79 c d 1 3 79 3 e 73 e 73 3 b 95 _ b 95 _ b 59 _ b 59 _ 8 33 8 33 b 5 _ b 5 _ 8 8 95 7 95 7 5 _ 5 _ 8 8 5 3 5 3 5 _ 5 _ 98 98 8 8 98 98 8 3 8 3 5 5 98 3 98 3 8 3 8 3 5 3 _ 5 3 _ 5 _ 5 _ b f 0...

Page 38: ... 1 A 25 1 A 1 1A 1 1A 1 F 1 G 4 1 F 1 G 4 1 1 A 1 1 A B F 1 3 B F 1 3 1 F 1 G 4 1 F 1 G 4 I 2 275 I 2 275 1 5 2 2 1 A 2 1 A B C 1J 7D E 8 B C 1J 7D E 8 1 22 1 22 I 1 275 7 25 4 I 1 275 7 25 4 1 5 2 I 275 I 275 1 5 2 J15 1F J15 1F 1 1 A 1 1 A 1H 7 1H 7 45 17 1 45 17 1 1 5 4 1 5 4 J 2 J12 J 2 J12 1 5 22 1 5 22 1 1 1 A 1 1 1 A 1 A 1 A B 22 F 1 3 B 22 F 1 3 2 A 2 A 1 1 A 1 1 A 1 1 A 7 1 1 A 7 2 2A 2 2...

Page 39: ... 6 6 4 45 45 46 46 G G LM 684 LM 684 5 4 6 LM6 684 LM6 684 5 4 6 G 6 G 6 G 5 G 5 G 56 G 56 5 56 9 5 56 9 L 51 5 L 51 5 G 6 G 6 8 5 J 5N 8 5 J 5N O 15 N 5 P O 15 N 5 P 8 36 2 Q 5 L6 H9 6L5 R 6 R 3 8 36 2 Q 5 L6 H9 6L5 R 6 R 3 5 6 4 1 5 55 56 54 5 51 5 5 5 65 6 5 66 64 6 61 6 6 6 6 4 45 46 G G G 5 G 5 G 6 G 6 564 564 G 5 5 G 5 5 L 4 5 L 4 5 G 6 G 6 51 J 5N 51 J 5N O 66 N 5 P O 66 N 5 P L 5 J S L 5 J...

Page 40: ...SVW YaUV bcdefeghhhijklmnndoopqqh hijklmnndrspqq atuvW wxtv atuvWy z hbcdefeh c f he h ph e e f 7 7 5 5 7 1 7 1 8 7 1 8 7 1 57 88 7 57 88 7 7 1 5 7 1 5 7 8 88 7 8 88 75 1 5 75 1 5 7 1 5 7 1 5 7 7 7 7 1 5 1 5 7 7 7 7 77 77 7 588 7 588 7 7 8 8 7 1 5 7 1 5 7 7 77 1 5 77 1 5 7 1 7 1 88 88 7 4 88 88 7 4 7 55 7 55 8 7 8 7 1 5 1 5 7 88 7 88 7 88 7 88 7 2 4 32 0 7 8 7 2 4 32 0 7 8 012 78 012 75 012 7 012 ...

Page 41: ... 45 8 2 4 45 8 2 4 dk 4 dk 4 5 7 5 e 4d 5 e 4d 4 4 c X 4 6j 7j 24 k c X 4 6j 7j 24 k h e h e 4 e 4d 4 e 4d 4 4 g 4 4 g 4 4 4 f 4 4 4 f 4 4 7 7e 4 4l 7 7e 4 4l 5 e 4d 5 e 4d 4 e 4d 4 e 4d 2 9 1 2 9 1 5 4d 5 4d e 4d e 4d s 51 s 51 4 5 24 82 5 4 t 24 82 5 4 t 4 5 c 7 4 d 4 i c 7 4 d 4 i 4e 4 4l 4e 4 4l 5 4d 5 4d 4 5e 5 4 5e 5 24 82 5 4 t 24 82 5 4 t 4 5 h 4 h 4 4 4 4 4 4 4 c 4 d 4 i c 4 d 4 i s 51 s ...

Page 42: ... will be into the factory mode menu when 3 steps above are done 8 1 2 How to exit If you want to exit this factory menu please press the button Exit on the remote 8 2 Measurements and Adjustments 8 2 1 Version S N Panel Resoution Version info The first item is the Model Name and the second one is current software version See picture on the next page Service Manual Model No HL19K2 40 ...

Page 43: ...the VGA and Component model When we found the color in the two models was abnormal Then we can use the function to adjust it automatically Color Temperature The function could adjust the Color Temperature used when debugging 41 Service Manual Model No HL19K2 ...

Page 44: ... AV S Video YPbPr VGA Compression Factor Compression state Downmix output model MTS System used when debugging The parameters only used when debugging no need to be modiﬁed 8 2 4 Channel Range Scan The function could make it to search the channels by differentiation the analog and digital channels Service Manual Model No HL19K2 42 ...

Page 45: ...t in advance Factory Scan According to ANTENNA ANALOG ANTENNA DIGITAL CABLE ANALOG CABLE DIGITAL to search channels used only in project debugging Tuner Diagnostic Project debugging setting used to inspect the audio function 43 Service Manual Model No HL19K2 ...

Page 46: ...8 2 5 Gamma Gamma Bright GAMMA0 8 Middle default settings in the program Dark GAMMA1 2 8 2 6 Backlight Backlight adjust the backlight Service Manual Model No HL19K2 44 ...

Page 47: ...is is for factory run in testing The screen would display red green blue and black screen repeatedly Each color screen could be exam at that time Clean Storage The function could make the model turn back to the factory default setting 45 Service Manual Model No HL19K2 ...

Page 48: ...Remark The date of the chart only is an example please don t adjust the factory mode base on it Service Manual Model No HL19K2 46 ...

Page 49: ...rify if correct channel is selected Adjust the antenna Make adjustments by Fine Tune and MANUAL Scan No color for some channel program black and white Verify if the same problem exists in other channels check out of picture and sound system Refer to relative instructions in the Manual for color adjust Spots with some or all pictures Verify if the antennal is correctly connected Verify if the anten...

Page 50: ...9 2 Power Supply Board Failure Check Service Manual Model No HL19K2 48 ...

Page 51: ...ut Check the input output Re soldering or change IC U13 Check the input output Re soldering or change IC U55 Check the input output Re soldering or change IC U2 Check the Speaker Change the Speaker Check the Sperker wire Fail Pass Fail Fail Fail Fail Pass Pass Pass Pass 49 Service Manual Model No HL19K2 ...

Page 52: ... Sunken TCP lead cracking ACF bonding short Awful environment and something electric enter into LCD Mis align between TCP and Panel Panel failure TCP failure V Dim Vertal gray line V L D Vertical color line light or dark forever H B D Horizontal bar H Dim Horizontal gary line H L D Horizontal line light or dark forever Service Manual Model No HL19K2 50 ...

Page 53: ...zer Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose F inside Polarizer Eyewinker inside Polarizer Eyewinker inside Polarizer Circuit Abnormal Display Abnormal Display 1 Chip lose action 2 IC ahort or jointiog bad 3 Pannel and vsc connect bad Flashing Bright and dark display alternately 51 Service Manual Model No HL19K2 ...

Page 54: ...ent and EDS Black Screen B L normal only Black screen display FIIcker Crosstalk LCD Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crosstalk inside LCD pannel Abnormal Color Only color abnormal 1 Chip lose action 2 IC short or jointion bad 3 Pannel and vsc connect bad Service Manual Model No HL19K2 52 ...

Page 55: ... wire and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged B L wire damaged Operation abnormal or systemic noise B L wire open Without backlight Operation abnormal or systemic noise B L shut down B L shutdown in sometime Short bitween lamp housing and wire Because consume power too much F M F M inB L white balck Rotundity or wire...

Page 56: ...nlcal or B L Light leakage Brightness at bottom of LCM brighter than normal B L unit badness Uniformity B L brightness asymmetric Sheet in B L unit is uneven Mount hole Lack screw or screw damage Lack screw Screw damage Service Manual Model No HL19K2 54 ...

Page 57: ...Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com Printed in China ...

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