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Owner's Manual
19" LCD TV
Service
Service
Service
Description
Table of Contents......................................................1
Important Safety Notice..............................................2
Revision List........................................................3
1. General Specification..................................................4
2. Operating Instructions.........................................5
2.1 Remote Control..................................................5
2.2 OSD Menus.......................................................7
2.3 Panel Control And Rear Terminal Control............18
3. Input/Output Specification.....................................22
4. Mechanical Instructions........................................24
5. Repair Flow Chart .............................................26
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
Table of Contents
Page Description
6. PCB Layout ................................................33
6.1 Main Board+Power Board.............................33
6.2 IR Board..................................................35
7. Adjustment..............................................................36
7.1 ADC/WB Adjustment..............................................36
7.2 Firmware and DDC Instruction..............................37
8. Block Diagram........................................................39
9. Wiring Diagram.......................................................40
10. Schematic Diagram.........................................41
10.1 Main Board+Power Board.............................41
10.2 IR Board.......................................................50
SAFETY NOTICE
1
Haier LE19P620
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Summary of Contents for Haier LE19P620
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Page 1: Table Of Contents
19″ LCD TV Haier LE19P620 Service Service Service Table of Contents Description Page Description Page Table of Contents..……........…...1 6. PCB Layout ……….………………………………..33 Important Safety Notice........…….2 6.1 Main Board+Power Board………………………..33 Revision List………………………………………………..3 6.2 IR Board………….……………..……….…..35 1. General Specification........………..4 7. Adjustment..............36 2. Operating Instructions..………………….……...……..5 7.1 ADC/WB Adjustment..........36... -
Page 2: Important Safety Notice
Important Safety Notice Proper service and repair is important to the safe, reliable operation of all Haier Company Equipment. The service procedures recommended by Haier and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. -
Page 3: Revision List
Revision List Version Release Date Revision Instructions Customer Model Model Aug.19,2014 Initial release LE19P620 E1BE91NCGXH6NNQ... -
Page 4: General Specification
1. General Specification... -
Page 5: Operating Instructions
2. Operating Instructions 2.1 Remote Control... -
Page 7: Osd Menus
2.2 OSD Menus... -
Page 18: Panel Control And Rear Terminal Control
2.3 Panel Control and Rear Terminal Control... -
Page 22: Input/Output Specification
3. Input/Output Specification 3.1 Input Signal Connector D-SUB Pin No. Description Pin No. Description Red Video No Pin Green Video Sync Ground Blue Video Serial Data for DDC Ground H. Sync Red Ground V. Sync Green Ground Serial Clock for DDC Blue Ground HDMI Pin No. - Page 23 3.2 Input Signal Timing...
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Page 24: Mechanical Instructions
4. Mechanical Instructions Step1. Remove the BASE. Step2. Remove the REAR COVER. - Page 25 Step3. Remove the MAIN BOARD+POWER BOARD、IR BOARD and Speakers. Step4. Remove the panel.
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Page 26: Repair Flow Chart
5. Repair Flow Chart 1. No power No power (LED “Off”) Check the AC input and Power “On” the power is “ON”? Replace the main main board+power board+power board board output=5V? Check the main board+power board and LED Replace the main board+power board Replace the main board+power board... - Page 27 2. Can’t start Can’t start（LED Blue） main board+power board output Replace the main board+power board ＝12V/24V? Replace the main board+power board Check the power key is under control? Replace the IR board Check the IR receiver is normal? Replace the main board+power board Replace the main board+power board...
- Page 28 3. Abnormal Display Abnormal Display Reset the source Check the source Enter factory mode to do “EEPROM initial”&“Reset” Check the main Replace the main board+power board board+power board Check the LVDS cable Replace the LVDS cable Check the panel Replace the panel...
- Page 29 4. No display No display (LED Red) Check TV is under control and power Replace the main board+power board on/off by remote control and power key? Check the backlight is “On”? Check the LVDS cable Check the B/L signal is available? Reinsert or replace the LVDS cable Replace the main...
- Page 30 5. Sound problem No sound or sound abnormal Check the audio source connection and the TV system are correct? Reinsert the audio cable or change the TV system Check the TV is muted, adjust the volume or enter the menu to reset? Enter factory mode to do “Reset”...
- Page 31 6. Remote control malfunction Remote Control malfunction Check the remote control battery is Replace the battery not properly placed or no power? Use the other remote controls Replace the remote control Whether the IR board is Replace the IR board abnormal? Replace the main board+power board...
- Page 32 7. OSD is unstable or can’t work normally OSD is unstable or can’t work normally main board+power board Reconnect the main board+power board connected properly? Replace the button function Buttons are OK? main board+power Replace the main board+power board board Enter factory mode to do “Reset”...
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Page 33: Pcb Layout
6. PCB Layout 6.1 Main Board 715G6717C1A000004N... -
Page 35: Ir Board
6.2 IR Board 715G5889R01000004K... -
Page 36: Adjustment
7. Adjustment 7.1 ADC/ WB Adjustment ADC and WB Adjustment are no need to adjust. -
Page 37: Firmware And Ddc Instruction
7.2 Firmware and DDC Instruction Step 1: Ready for F/W Upgrade 1.1 F/W: 1.2 Prepare a USB memory (The file system of USB memory must be FAT16 or FAT 32). 1.3 Copy the FW from your computer to the USB memory, and remove it from computer’s USB port! Step 2: F/W Upgrade Upgrades have two ways: The first method:... - Page 38 2.1.5 After finish upgrade process, TV will reboot by itself. Replug the USB memory. The second method: 2.2.1 AC power off 2.2.2 Plug the USB disk on the USB port on the side I/O port of TV. 2.2.3 TV AC power off -> AC power on 2.2.4 TV will upgrade by itself after detect the USB disk condition and the content of the bin file.
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Page 39: Block Diagram
8. Block Diagram... -
Page 40: Wiring Diagram
9. Wiring Diagram Panel 6 Pin CN8101 Power Cord 5 Pin 30 Pin MAIN BOARD CN401 CN403 MST6820XP U401 Scaler IC Panel 5 Pin IR Board CN201 Speaker L Speaker R... -
Page 41: Schematic Diagram
10. Schematic Diagram 10.1 Main Board (715G6717C1A000004N) +12VO P12V C704 22pF 50V R742 0R05 OHM Vout = 0.6x(1+100/13.3)=5.11V +12VO Backlight Control R726 100K 1% U706 R725 C726 13.3K 1% +5V_Standby 0.1uF 50V FB704 BL_ON/OFF VBL_CTRL R727 4.7K 1/16W DGND R730 L702 3.3A VBL_CTRL... - Page 42 +5V_Standby H/W Reset R403 D401 1M 1/16W BAV99 RXO0- RXO0- RXO0+ RXO0+ RXO1- RXO1- RXO1+ RXO1+ RXO2- R404 RXO2- RXO2+ C402 RXO2+ RXOC- RXOC- RXOC+ 2.2UF 16V RXOC+ Q402 RXO3- RXO3- 4.7K 1/16W MMBT3906 C403 RXO3+ RXO3+ R405 HDMI_HP0 1K 1/16W 2.2UF 16V HOTPLUG0 HDMI0-SCL...
- Page 43 R438 +5V_Standby P12V RXO0- RXO0- NC/0oHM Panel Power RXO0+ RXO0+ RXO1- R437 0oHM RXO1- RXO1+ P12V +12VO RXO1+ RXO2- RXO2- RXO2+ PANEL_VCC RXO2+ RXOC- Q401 RXOC- RXOC+ C401 RXOC+ AO3407A RXO3- R439 RXO3- 100K1/16W 220N 25V RXO3+ RXO3+ R473 C437 R440 RXE0- 100NF 16V...
- Page 44 AV1 IN PC IN CN103 R148 C147 AV1-CVBS0P AV1-CVBS0P 33 OHM 1/16W 47nF 16V R147 CONN 75 OHM R116 C111 VGA-AUL1 VGA-AUL1 10K 1/16W 5% 2.2uF 10V Placement Near RCA. AGND VGA-AUR1 R117 C112 Placement Near RCA. VGA-AUR1 10K 1/16W 5% 2.2uF 10V CN104 RCA JACK...
- Page 45 From Main Chip CN501 HDMI0-RX2P HDMI0_D2+ HDMI0-RX2N HDMI0_D2- HDMI0_D2+ HDMI0-RX1P R515 0R05 OHM SHELL3 HDMI0_D1+ HDMI0-RX1N DGND D2 Shield SHELL4 HDMI0_D1- HDMI0_D2- R516 0R05 OHM HDMI0-RX0P HDMI0_D0+ HDMI0_D1+ R517 0R05 OHM HDMI0-RX0N HDMI0_D0- HDMI0-CLKP D1 Shield HDMI0_CLK+ HDMI0_D1- HDMI0-CLKN R518 0R05 OHM HDMI0_CLK- HDMI0_D0+...
- Page 46 Silicon Tuner Main Chip <--> 300mA Tuner Power 1K_100MHz/400_400MHz AGND DGND 3.3V_TUNER VDD3V +5V_Normal TUN_IF+ VIFP U101 FB101 TUN_IF- VIFM VOUT 1000OHM C130 C142 10UF 6.3V 20% C128 10UF 6.3V 20% 1UF 10V TUN_I2C_SCL TUNER_SCL DGND TUN_I2C_SDA TUNER_SDA DGND DGND DGND Close to Main chip CN101...
- Page 47 AV_L_OUT# 1.2A Max AMP_AUOUTL0 U601 AV_R_OUT# +5V_Normal AMP_AUOUTR0 Thermal Pad R611 +3.3V_Standby PVDD 10K+-5%1/16W AMP_STB R612 PVCCL R630 Q601 4.7K 1/16W AMP_MUTE MMBT3904 C613 100N 50V C614 100N 50V C619 10UF 16V 10K+-5%1/16W C618 1NF 50V FAULTZ PVCCL AMP_MUTE AUDIO_EN R613 AV_L_OUT# LINP...
- Page 48 From Main Chip KEY 0-SAR0 KEY 0-SAR0 IRIN IRIN +3.3V_Standby +3.3V_Standby FB409 R457 CN401 4K7 1/16W 1% 120R/6000mA LED-R LED-G R458 IRRX1 POWER_KEY KEY 0-SAR0 100OHM POWER LED-G LED-R IRRX1 POWER CONN C440 C441 C444 1N 50V 1N 50V 100NF 16V C445 C446 DGND...
- Page 49 +12VO +12VO BL_PWM BL_PWM BL_ON/OFF BL_ON/OFF FB8101 AGND D8108 FB8102 120R/6000mA 120R/6000mA L8101 SR506 VLED+ R9126 33 OHM 1/4W +12VO 47UH T9101 R9107 POWER X'FMR R9127 33 OHM 1/4W R9104 200K 1/4W R9106 C8105 R8116 R9122 33 OHM 1/4W 220 OHM 1/4W R9105 200K 1/4W 0.1uF 50V...
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Page 50: Ir Board
10.2 IR Board (715G5889R01000004K) R204 220 OHM +-5 1/16W ％ R205 NC 220 OHM +-5 ％ 1/16W LED201 12-22/BHR6C-C31/2C LED_R R202 NC 0R05 OHM LED_B CN201 R203 0R05 OHM U201 Vout R201 15K 1/16W 5% R206 V838M3/TR1 R207 CONN C201 2.2uF 10V 033G8032 5F T P V ( Top...