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WARNING 

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does 

not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products 

powered b electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the 

product deal with in this service information by anyone else could result in serious injury or death. 

 

 

 

 

     

COLOR TV

Model No. 
NS-L19W2Q-10A 

CHASSIS:

 ZORAN775 

2009 (Qingdao Electronics 

limited company

 All rights reserved. Unauthorized copying and distribution is a violation of 

law. 

                    

                                             

                          

Summary of Contents for NS-L19W2Q-10A

Page 1: ...empting to service a product Products powered b electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product deal with in this service information by anyone else could result in serious injury or death COLOR TV Model No NS L19W2Q 10A CHASSIS ZORAN775 2009 Qingdao Electronics limited company All rights reserved Unauthorized cop...

Page 2: ... Power Board 12 3 4 LCD Panel 12 4 Disassemble and assemble 15 4 1 Remove the Pedestal 15 4 2 Remove the Front Cover 15 4 3 Remove the LCD panel 17 4 4 Remove the Main Board 17 4 5 Remove the Power Board 18 4 6 Remove the Speaker 18 4 7 Remove the Keypad Assembly 19 4 8 Remove the Remote Control Board 19 5 INSTALLATION INSTRUCTIONS 20 6 OPERATION INSTRUCTIONS 23 6 1 Front Panel Controls 23 6 2 Bac...

Page 3: ...3 7 MEASUREMENTS AND ADJUSTMENTS 26 8 Electrical parts 31 8 1 Wiring Connection Diagram 31 8 2 Block Diagram 32 8 3 Circuit Diagram 32 9 Trouble Shooting Guide 49 ...

Page 4: ...t operating and maintenance instructions in the literture accompanying the appliance 1 2 2 Be careful to the electrical shock To prevent damage which might result in electric shock or fire do not expose this TV set to rain or excessive moisture This TV must not be exposed to dripping or splashing water and objects Filled with liquid such as vases must not be place on top of or above the TV 1 2 3 E...

Page 5: ... insulation resistance is less than M ohm the inspection repair should be required If you have not the 500V insulation resistance meter use a Tester External exposure metal Antenna terminal Headphone jack 1 2 8 Ordering Spare Parts Please include the following informations when you order parts Particularly the Version letter 1 Model number and Version letter The model number can be found on the ba...

Page 6: ... 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 7: ...Min Yes 3 Comb Filter 3d y c digital 3 2 Pull down Yes USB Port for thumb drive side Supports F W Upgrade MP3 JPEG USB for firmware update Closed Captioning Display Yes V Chip Version 2 0 Yes Sleep Timer Yes Channel Labeling Yes Auto Zoom Yes Composite Inputs back Yes 1 SIDE BACK S Video Inputs back Yes 1 SIDE BACK Component Video Inputs back Yes 1 SIDE BACK HDMI Input HDMI 1 3 back Yes 2 SIDE BAC...

Page 8: ... LOCATION OF CONTROLS AND COMPONENTS 3 1 Board Location No Description A Board Main Board B Board Power supply Board C Speaker 3 2 A Board Main Board 3 2 1 Function Description Main Board A Board C B Board ...

Page 9: ...9 Process signal which incept from exterior equipment then translate into signal that panel can display 3 2 2 Connector definition Main board connector LVDS Connector CN7 PIN 1 ...

Page 10: ...er for panel 4 6 GND Ground 7 A0N LVDS EVEN 0 Signal 8 A0P LVDS EVEN 0 Signal 9 A1N LVDS EVEN 1 Signal 10 A1P LVDS EVEN 1 Signal 11 A2N LVDS EVEN 2 Signal 12 A2P LVDS EVEN 2 Signal 13 14 GND Ground 15 CK1N LVDS EVEN Clock Signal 16 CK1P LVDS EVEN Clock Signal 17 A3N LVDS EVEN 3 Signal 18 A3P LVDS EVEN 3 Signal 19 NC NC 20 NC NC 21 NC NC 22 NC NC 23 NC NC 24 NC NC 25 26 GND Ground 27 NC NC 28 NC NC...

Page 11: ...und 4 RSPK Right Audio Output Remote Board and Key board Connector CN2 Pin number Signal name Description 1 IR_IN IR 2 CPU5V 5V Power 3 LED_B Blue Indicator light 4 GND Ground 5 LED_R Red Indicator light 6 K6 Key Connector POWER 7 K5 Key Connector MENU 8 K4 Key Connector P 9 K3 Key Connector P 10 K2 Key Connector V 11 K1 Key Connector V 12 K0 Key Connector SOURCE PIN 1 PIN 1 ...

Page 12: ...nnector CN10 Pin number Signal name Description 1 NC 2 GND Ground 3 GND Ground 4 BL ADJUST INVERTER Lightness Adjust 5 BL ON OFF INVERTER Switch Control 6 12V 12V Power 7 12V 12V Power Other Connector AC150V AC240V Input CN13 Power supply for panel CN11 Power supply for panel CN12 3 4 LCD PANEL ...

Page 13: ...13 Connector definition ...

Page 14: ...14 ...

Page 15: ...15 4 Disassemble and assemble 4 1 Remove the Pedestal 4 2 Remove the Front Cover ...

Page 16: ...16 ...

Page 17: ...17 4 3 Remove the LCD panel 4 4 Remove the Main Board ...

Page 18: ...18 4 5 Remove the Power Board 4 6 Remove the Speaker ...

Page 19: ...19 4 7 Remove the Keypad Assembly 4 8 Remove the Remote Control Board ...

Page 20: ...20 5 INSTALLATION INSTRUCTIONS Accessories Remote Control User Manual Battery YPbPr wire ...

Page 21: ...21 ...

Page 22: ...22 ...

Page 23: ...23 6 OPERATION INSTRUCTIONS Basal information 6 1 Front panel controls ...

Page 24: ...24 6 2 Back panel controls ...

Page 25: ...25 6 3 Setting up Your Remote Control ...

Page 26: ...y to the factory mode menu First press menu Second choose the AUDIO Third input 8893 Finished these operations system will be into the factory mode menu Press to select articles and then press the Right or enter button to sub menu Software Upgrade Auto Color ...

Page 27: ...27 White Balance Color Temp Picture Mode Setting Audio Mode Setting SSPLL Setting ...

Page 28: ...28 IF you want to exit this factory menu please press the button Exit in the remoter 7 2 Picture ...

Page 29: ...29 7 3 Audio 7 4 CHANNELS ...

Page 30: ...30 7 5 SETTINGS 8 Electrical parts 8 1 Wiring Connection Diagram ...

Page 31: ...403469C P o w e r S u p p l y B o a r d 6 0094001233A P o w e r C o r d 7 0090403211A 8 Connection Wire For Contral Board 0090402388 Speaker Connection Wire 9 0090402199A Speaker 0094001218 10 11 Remote Control Board Assembly 0090719244 Keypad Assembly 0090718846 Workout Auditing Standard ization Approve brand customer export country special technique document number special number H a i e r t y p...

Page 32: ... special number haier type customer type NS L19W2Q 10A INSIGNIA Explain The line bundle screw and the damageable element that does not mark in explosion picture please refer to BOM Approve Standard ization Auditing Workout 1 3 4 5 6 7 8 12 15 16 17 18 19 2 9 10 11 13 14 number name special number standard reference number Rubber gasket Base Borad 0090203739 0090301459 Rotate axis 0090101794A 1 1 1...

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Page 50: ...fy 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 adjusts Spots with some or all pictures Verify if the antennal is correctly connected Verify if the antenn...

Page 51: ...ailure check State No power First check cables which connect with PSU then check as follows 1 Check PSB input voltage AC input voltage 120V Connector CN13 2 Check PSB output voltage orderly Voltage 12V 12V Connector CN10 ...

Page 52: ...35 State No picture ...

Page 53: ...36 9 4 Panel failure Failure Mode Part Name Description Phenomena Failure cause TCP V B D Vertical bar Block Defect TCP cracking or cracking Dim or L D TCP Sunken TCP lead cracking ...

Page 54: ...Name Description Phenomena Failure cause Dot Defect Bright dot dark dot in panel Incoming Inspection Standard Polarizer Bubble Bladder in Polarizer Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose Panel or Polarizer F M inside Polarizer Eye winker inside Polarizer Eye winker inside Polarizer Abnormal Display Abnormal Display Circuit Flashing Bright...

Page 55: ... bad Failure Mode Part Name Description Phenomena Failure cause Mechanlcal Nolse When turn panel appear cacophony Caused by Mechanica noise of backlight unit Ripple Connectric circle Causeed by between mechanism and pannel B L off B L lose action Connect badness between wire and electrode B L dark B L brightness darker than normal Connect badness Short between wire and electrode B L wire damaged B...

Page 56: ... Mode Part Name Description Phenomena Failure cause 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 Mechanlcal or B L Mount hole Lack screw or screw damage Lack screw Screw damage ...

Page 57: ...40 ...

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