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Haier 48DR3505 Service Manual

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SERVICE MANUAL

LED TV
48DR3505
Model No.
MSD3393LU Chassis
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 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.
©2014 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.

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Summary of Contents for Haier 48DR3505

  • Page 1: Service Manual

    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. ©2014 Qingdao Haier Electronics Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    Service Manual Model No.: 48DR3505 CONTENTS Chapter 1. General Information 1-1. Document Information ..............3 1-2. General Guidelines..............3 1-3. Important Notice.................3 1-3-1. Follow the regulations and warnings ............. 3 1-3-2. Be careful to the electrical shock ............3 1-3-3. Electro static discharge (ESD)..............3 1-3-4.
  • Page 3 Service Manual Model No.: 48D3505 4-3-2. Connector denition ................15 4-4. LCD Panel ..................16 Chapter 5. Installation Instructions 5-1. Accessories ................18 5-2. External Equipment Connections..........19 Chapter 6. Operation Instructions 6-1. Front Panel Controls..............20 6-2. Back Panel Controls ..............21 6-3. Setting Up Your Remote Control ..........22 Chapter 7.

  • Page 4: Chapter 1. General Information

    Service Manual Model No.: 48DR3505 Chapter 1. General Information 1-1. Document Information Document format: Adobe PDF Author: Zhu Yapeng Compiler: 1-2. General Guidelines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

  • Page 5: About Lead Free Solder (Pbf)

    Service Manual Model No.: 48DR3505 components commonly are called Electrostatically Sensitive (ES) Devices. The following techniques should be used to help reduce the incidence of component damage caused by electros static discharge (ESD). Electrostatically Sensitive (ES) Devices Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices.
  • Page 6 Service Manual Model No.: 48DR3505 1. Always unplug the receiver AC power cord from the AC power source before: a. Removing or reinstalling any component, circuit board module or any other receiver assembly. b. Disconnecting or reconnecting any receiver electrical plug or other electrical connection.

  • Page 7: Ordering Spare Parts

    Service Manual Model No.: 48DR3505 12. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 13. Use only an anti-static type solder removal device. Some solder removal devices not classied as "anti-static" can generate electrical charges sufcient to damage ES devices.
  • Page 8 Service Manual Model No.: 48DR3505 Caution: A “caution ” is used when there is danger that the reader, through incorrect manipulation, 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.

  • Page 9: Chapter 2. SpeciCation

    Service Manual Model No.: 48DR3505 Chapter 2. Specication 2-1. Specication list Model 48DR3505 Screen Size 47.6" Aspect Ratio 16:9 Resolution 1920x1080 Brightness (cd/m²) Contrast 1200:1 Response Time (ms) Angel of View H:160°, V:150° Color Display 16.7M OSD Language English,French,Spanish. Color System...

  • Page 10: External Pictures (Four Faces)

    Service Manual Model No.: 48DR3505 2-2. External pictures (four faces) Front Side Up Side...
  • Page 11 Service Manual Model No.: 48DR3505 Right Side Back Side...

  • Page 12: Chapter 3. Disassemble And Assemble

    Service Manual Model No.: 48DR3505 Chapter 3. Disassemble and Assemble 3-1. 48DR3505 3-1-1. Remove the Stand 3-1-3. Remove the Mainboard 1. Remove the six screws indicated with red circles. 2. Remove the Mainbord. 1. Lay down the TV set .

  • Page 13: Remove The Remote Control Board

    Service Manual Model No.: 48DR3505 3-1-6. Remove the Remote Control Board And the Key Board Remove the Remote Control Board and the Key Board indicated by red circle in below picture.

  • Page 14: Chapter 4. Location Of Controls And Components

    Service Manual Model No.: 48DR3505 Chapter 4. Location of Controls and Components 4-1. Board Location B Panel A Board Model Description A Board TP.MS3393.PC821 Mainboard B Panel ST4761B01-5 LCD Panel...

  • Page 15: Mainboard

    Service Manual Model No.: 48DR3505 4-2. Mainboard 4-2-1. Function Description Process signal which incept from exterior equipment then translate into signal that panel can display. 4-2-2. Connector denition CN18 IR & Key Interface Pin number Signal name Speaker connector CN18...

  • Page 16: Connector DeNition

    Service Manual Model No.: 48DR3505 4-4. LCD Panel Backlight Unit LVDS CONNECTOR CN1 Connector Denition...
  • Page 17 Service Manual Model No.: 48DR3505...

  • Page 18: Chapter 5. Installation Instructions

    Service Manual Model No.: 48DR3505 Chapter 5. Installation Instructions 5-1. Accessories Batteries Remote Control...

  • Page 19: External Equipment Connections

    Service Manual Model No.: 48DR3505 5-2. External Equipment Connections Antenna Connection Connect a DVD Player or VCR to Your TV Connect your aerial to the back of the TV into the ANTENNA IN socket. There are two ways in which you can connect a DVD player or VCR to your TV.

  • Page 20: Chapter 6. Operation Instructions

    Service Manual Model No.: 48DR3505 Chapter 6. Operation Instructions 6-1. Front Panel Controls 5 VOL+ Press to increase the volume. POWER Press to turn the TV on and off. 6 MENU Press to select the main menu. TV channel down.

  • Page 21: Back Panel Controls

    Service Manual Model No.: 48DR3505 6-2. Back Panel Controls Optical output input YPbPr intput HDMI3 input HDMI2(MHL) input HDMI2 input input PC Audio input input 10 Line out output 11 USB input...

  • Page 22: Setting Up Your Remote Control

    Service Manual Model No.: 48DR3505 6-3. Setting Up Your Remote Control When using the remote control, aim it towards the remote sensor on the TV. POWER. INPUT. Shortcut button. HOME; Program Number Channel selection. RECALL button. VOL+/VOL-: Volume selection. CH∧/CH∨: Channel selection.

  • Page 23: Chapter 7. Electrical Parts

    Service Manual Model No.: 48DR3505 Chapter 7. Electrical Parts 7-1. Circuit Diagram 5V_M 33ohm-0402-±5%-1/16W MMBT3904(f≥350MHz) 5V_M NC/2K2ohm-0402-±5%-1/16W 5V_M 5V_STB 10Kohm-0402-±5%-1/16W 5V_M 1Kohm-0402-±5%-1/16W 5V_M RB10 5V_Panel BL_ON 5V_Panel RB11 PW_ON NC/100uF-16V NC/100uF-16V PWON 5V_STB 10uF-0805 10uF-0805 5VSB 0.1uF-0402 0.1uF-0402 BL_EN NC/10uF-0805 10PIN-2.54-D-H-G...
  • Page 24 1.15V_STB 1V8_DDR CD10 CL16 MSD3393LU 0.1uF-0402-Y5V-+80%-20%-16V 0.1uF-0402-Y5V-+80%-20%-16V 1uF-0402-X5R-±20%-6.3V 0.1uF-0402-Y5V-+80%-20%-16V 0.1uF-0402-Y5V-+80%-20%-16V 0.1uF-0402-Y5V-+80%-20%-16V 0.1uF-0402-Y5V-+80%-20%-16V HDMI2_RX1_N LED_RED RX1N_B SAR1 HDMI2_RX1_P RX1P_B SAR0 HDMI2_RX2_N 3V3_STB +3_3V_AU 3V3_STB +3_3V_PLL RX2N_B AVDD_MOD 3V3_STB HDMI2_RX2_P USB1_DP RX2P_B DP_P1 USB1_DM 3V3_STB AVDD_MOD DM_P1 HDMI3_RXC_N USB0_DP RXCN_A DP_P0 CL17 CL18 HDMI3_RXC_P USB0_DM...
  • Page 28 PADGND IF_OUTN_2/GPO_1 IF_OUTP_2/GPO_2 RESET_N IF_OUTN_1 VDD_1P8_3 IF_OUTP_1 GND_XTAL VDD_3P3_2 XTAL_P VDD_1P8_2 XTAL_N...
  • Page 29 RA22 CN17 AMPVCC AMP_VCC AMP_VCC SK34A-SMA 0ohm-1206-±5%-1/4W NC/470uF-16V-± 20%-8×12-105 0.1uF-0603-Y5V-+80%-20%-50V 470uF-35V-±20%-10×13-105 4PIN-2.54-D-H- NC/1000uF-16V-± 20%-10× 16 105 0.01uF-0402-X7R-±10%-16V 0.1uF-0402-Y5V-+80%-20%-16V 10ohm-0603-± 5%-1/10W 100ohm-0402-± 5%-1/16W 0.1uF-0402-Y5V-+80%-20%-16V AMPVCC 1000pF-0402-X7R-± 10%-50V 100ohm-0402-± 5%-1/16W 220ohm-0402-± 5%-1/16W AVCC AMPVCC 0.22uF-0402-Y5V-+80%-20%-16V 0.01uF-0402-X7R-±10%-16V 220ohm-0402-± 5%-1/16W 0.22uF-0402-Y5V-+80%-20%-16V 47Kohm-0402-±5%-1/16W 0.22uF-0402-Y5V-+80%-20%-16V AMP_MUTE/ 0.22uF-0402-Y5V-+80%-20%-16V PVCCL 0.1uF-0603-Y5V-+80%-20%-50V...
  • Page 30 Service Manual Model No.: 48DR3505 7-2 . Wiring Connection Diagram...

  • Page 31: Chapter 8. Measurements And Adjustments

    Service Manual Model No.: 48DR3505 Chapter 8. Measurements and Adjustments 8-1. Service Mode 8-1-1.How to enter into Service Mode The way to the factory mode menu: Step 1: Press Menu, Step 2: Input “8893”, System will be into the factory mode menu when 2 steps above are done.

  • Page 32: General Setting

    Service Manual Model No.: 48DR3505 8-2-2. GENERAL SETTING 1)Init Flash; 2)Uart Enable:Choose on or off in Uart Enable; 3)Dbg Message Enable: Choose on or off in Dbg Message Enable; 4)Test Pattern: Choose the Pattern picture; 5)Dynamic Contrast: Choose on or off in Dynamic Contrast;...

  • Page 33: Sound

    Service Manual Model No.: 48DR3505 8-2-4. SOUND Adjust the values of Sound Mode, Volume Curve,Audio Output and True Volume in different source. 8-2-5. Panel Setting 1)LVDS Bit Mode: choose the Bit; 2)LVDS MAP: choose the MAP; 3)LVDS ODD/Even: choose ODD or Even;...

  • Page 34: Software Update

    Service Manual Model No.: 48DR3505 8-3. Software Update 8-3-1. MSD3393LU software update 1. Copy the software les to a USB disk on the root directory; 2. Insert the USB disk when the AC power is off; 3. Turn on the AC power in turn to begin;...

  • Page 35: Chapter 9. Trouble Shooting

    Service Manual Model No.: 48DR3505 Chapter 9. Trouble shooting 9-1. Simple check Verify if the television is properly plugged No picture/ No sound Verify if the television is properly supplied power Verify if electricity is available. Verify if correct signals are input...

  • Page 36: Mainboard Ic Introduction

    Service Manual Model No.: 48DR3505 9-2. Mainboard IC Introduction Top view...
  • Page 37 Service Manual Model No.: 48DR3505 Bottom view...
  • Page 38 Service Manual Model No.: 48DR3505 1.Mainchip—MSD3393LU(U1) 2. Audio Amplier—TPA3110D2PWPR (UA1) 3.Main Flash Memory—GD25Q32BSIG (UF1) 4.DC/DC convertor 5V-1.8V for MSD3393LU (U1)—LC1117CLTRAD (UL2) 5.voltage convertor 5V to 3.3V_STB —LC1117CLTR33 (UL1) 6.voltage convertor 5V to 1.15V_STB —LC3406CB5TR (UD1) 7.voltage convertor 5V to 3V for tuner—LC1117CLTR33...

  • Page 39: Mainboard Failure Check

    Service Manual Model No.: 48DR3505 9-3. Mainboard Failure Check No picture but have sound Check the power output Change the Power Board There’s something wrong Check the CN2 (BLO) with FRC Backlight on/off Verify if the DC/DC convertor can output the...
  • Page 40 Service Manual Model No.: 48DR3505 No sound but have picture Verify if the speakers are Change the speakers broken Verify if the main board has the Check the corresponding audio right input ,according to the source input circuit you connect.
  • Page 41 Service Manual Model No.: 48DR3505 No sound No picture Verify if the Power has Change the 5Vstb output Power supply Verify if CN4 Pin3/4 has 5V Change Power board input Verify if CN2 Pin1 has 12V Change Power board input...
  • Page 42 Service Manual Model No.: 48DR3505 Poor sound Poor sound Verify if sound system is Change sound correct . system For ease of use, recommend that customer format the picture and sound settings in the automatic option. Updata the software and Still having make the reboot;...
  • Page 43 Service Manual Model No.: 48DR3505 No color for some channel program (black and white) No color for some chann el program (black and w hite) Verify if the same Check out of picture and sound problem exists in other system of this channel...
  • Page 44 Service Manual Model No.: 48DR3505 How to know whether the Power board is broken? Check if the power cord co Reconnect the power cord with the nnect well? outlet or Power board. Check if the Power board Replace the Power board pls.

  • Page 45: Pannel Failure

    Service Manual Model No.: 48DR3505 9-4. Pannel Failure Failure Mode...
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  • Page 50 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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