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Summary of Contents for BBK LCD19W57
- Page 1 BBK Service Liquid Crystal Display Television Service Manual Chassis： MST9 ProductType：LCD19W57/LCD19W29EU LCD26W57 LCD32W57 Ver 1.0 June. 2008...
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Page 2: Table Of Contents
1.1 WARNING ............................- 4 - 1.2 NOTES ............................- 7 - 2. Product Function Specifications ......................- 10 - 3. LCD Panel Spec............................- 11 - 3.1 LCD19W57：..........................- 11 - 3.2 LCD26W57：..........................- 12 - 3.3 LCD32W57 ...........................- 12 - General Features ..........................- 13 - 4. -
Page 3: Service Manual
WHEN REPLACEMENT PARTS ARE REQUIRED, BE SURE TO USE REPLACEMENT PARTS SPECIFIED BY THE MANUFACTURER. Proper service and repair is important to the safe, reliable operation of all BBK Electronics., Ltd Equipment. The service procedures recommended by BBK and described in this Service Guide are effective methods of performing service operations. -
Page 4: Warning
Consequently, BBK has not undertaken any such broad evaluation. Accordingly, a serviceman that uses a service procedure or tools, which are not recommended by BBK, must first satisfy himself thoroughly that neither his safety nor the safe of the equipment will be jeopardized by the service method selected. - Page 5 LCD TV Service Manual 1.1.2. All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set by a wristband with resistance.
- Page 6 LCD TV Service Manual -Note: The wire trees should be routed correctly and fixed with the mounted cable clamps. -The insulation of the mains lead should be checked for external damage. 1.1.6 (1) Do not touch Signal and Power Connector while this product operates. Do not touch EMI ground part and Heat Sink of Film Filter.
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Page 7: Notes
LCD TV Service Manual disconnecting or connecting the connector. (7) Do not pull out or insert the power cable from/to an outlet with wet hands. It may cause electric shock. (8) Do not damage or modify the power cable. It may cause fire or electric shock. (9) If the power cable is damaged, or if the connector is loose, do not use the product: otherwise, this can lead to fire or electric shock. - Page 8 LCD TV Service Manual removing the power board, start servicing at least 2 minutes after the main power has been turned off. • While the main power is on, do not touch any parts or circuits other than the ones specified.
- Page 9 LCD TV Service Manual • Routing of the wires and fixing them in position must be done in accordance with the original routing and fixing configuration when servicing is completed. All the wires are routed far away from the areas that become hot (such as the heat sink). These wires are fixed in position with the wire clamps so that the wires do not move, thereby ensuring that they are not damaged and their materials do not deteriorate over long periods of time.
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Page 10: Product Function Specifications
LCD TV Service Manual 2. Product Function Specifications - 10 -... -
Page 11: Lcd Panel Spec
LCD TV Service Manual 3. LCD Panel Spec LCD19W57： General Description： - 11 -... -
Page 12: Lcd26W57
LCD TV Service Manual 3.2 LCD26W57： General Description： V260B1- L02 is a 25.5” TFT Liquid Crystal Display module with 8-CCFL Backlight unit and RSDS interface. This module supports 1366 x 768 WXGA format and can display 16.2M colors (6-bits+FRC colors). General Features Item Specification... - Page 13 LCD TV Service Manual General Features - 13 -...
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Page 14: Chassis Layout And Overall Wiring Diagrams
LCD TV Service Manual 4. Chassis Layout and Overall Wiring Diagrams 4.1 Chassis Layout LCD19W57/LCD19W29EU: Type/Model PCB/ Model Description Part No Main Board 116132 RSAG2.908.1294\ROH RSAG7.820.1264 Power Board 1041467 JSI-190411B\ROH Keypad 114552 RSAG2.908.1168-2\ROH RSAG7.820.1214 IR & Led Board 114175 RSAG2.908.1169 RSAG7.820.1213... -
Page 15: Wires And Cables Overall Wiring Diagrams
LCD TV Service Manual 4.4 Wires and Cables Overall Wiring Diagrams LCD19W57/LCD19W29EU： Inverter BD CN3F CN2F 4Pin LVDS 6Pin CN16 XP10 CN17 3 Pin 5pin Speakers XPK01 XPR01 Key BD LED &IR BD DESCRIPTION SPECIFICATION NOTE LVDS signal FF-HX19-19\ROH Main BD CN17<-->Panel... - Page 16 LCD TV Service Manual LCD26W57： DESCRIPTION SPECIPICATION NOTE Main Power TJC2-3Y-250-2\ROH Power Inlet-->Power BD XP801 5V,12V power and communication TJC10T-14Y-450\ROH Power BD XP802<-->Main BD XP9 between Main BD and Power BD LVDS signal FPC-45-320-1\ROH Main BD C0N8<-->Panel Buttons TJC10T-3Y-650\ROH Main BD XP2<--> Key BD XPK1 IR &Led TJC10T-5Y-400\ROH Main BD XP1<-->IR BD XPR01...
- Page 17 LCD TV Service Manual LCD32W57 ： DESCRIPTION SPECIPICATION NOTE Main Power TJC2-3Y-250-2\ROH Power Inlet-->Power BD XP801 5V,12V power and communication TJC10T-14Y-150\ROH Power BD XP812<-->Main BD XP9 between Main BD and Power BD LVDS signal HX2-2x15KLB350P-CMO\ROH Main BD C0N8<-->Panel Buttons TJC10T-3Y-650\ROH Main BD XP2<-->...
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Page 18: Factory/Service Osd Menu And Adjustment
LCD TV Service Manual 5. Factory/Service OSD Menu and Adjustment 5.1 To enter the Factory OSD Menu a. With factory RC (remote control) 1. Press “M” button and enter factory mode. 2. Press “Menu” button and enter factory OSD menu. 3 . - Page 19 LCD TV Service Manual Auto Calibration LOGO NULL Auto Color Color Temp. Standard WELCOME RED COLOR GREEN COLOR EGYPT BLUE COLOR Option Factory Init SOURCE QingDao BRIGHT 0 HuangDao BRIGHT 50 Guiyang BRIGHT 100 shunde CONTRAST 0 Hungary CONTRAST 50 France CONTRAST 100 150 Australia...
- Page 20 LCD TV Service Manual Test Pattern Version BLUE Version: Panel Type: FLASH : 5.2.2、Design Menu Design Menu Picture Mode Sound Mode Sound Settings Power Save PIP Option MOVESHARPNESS LipSync - 20 -...
- Page 21 LCD TV Service Manual Picture Mode Sound Mode Standard 120Hz Standard Brightness 500Hz Contrast 1.5KHz Colour 5KHz Bright Brightness 10KHz Contrast Music 120Hz Colour 500Hz Soft Brightness 1.5KHz Contrast 5KHz Colour 10KHz Speech 120Hz 500Hz 1.5KHz 5KHz 10KHz Sound Settings VOLUME 0 VOLUME 1 VOLUME 20...
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Page 22: Software Upgrading
LCD TV Service Manual 6. Software Upgrading The software is upgraded by a burning tool- ISP_TOOL4.0.9, which can burn the program file “*．bin ”to the main board of the unit 6.1 Get ready for upgrading 6.1.1 Install the ISP_TOOL4.0.9-------only for the first time update. 1 、... - Page 23 LCD TV Service Manual Click the “system” icon as the following Choose the “hardware” option from the dialog window - 23 -...
- Page 24 LCD TV Service Manual Click“device management” icon as the following Choose the port (COM and LPT1) Choose the ECP print port (LPT1） - 24 -...
- Page 25 LCD TV Service Manual Click the port of print （LPT1）as the following Choose “port setting”option as the following - 25 -...
- Page 26 LCD TV Service Manual Find the folder where the ISP_TOOL4.0.9 lies in. 2、 There are three folders/files in this folder together. DLPORTIO.dll and FTD2XX.DLL must be in the same folder Double click the ISP_TOOL4.0.9 icon, and then a dialog window will show as below. - 26 -...
- Page 27 LCD TV Service Manual Click the Config button. And then a dialog window will show as below. Port Type setting is LPT1 Base Addr setting is 0x378 Draw on the front of “pin 1 switch UART/I2c” Speed setting is 99 As following Choose“SDA in”and setting “PIN”...
- Page 28 LCD TV Service Manual Choose “SCL in”and setting “PIN” is “PIN11”。 Notes: Do not draw on the front of “Reverse High”。 As following Choose “SDA out”and setting “PIN” is “PIN4” Notes: Draw on the front of “Reverse High”。 As following。 Choose “SCL out”and setting “PIN”...
- Page 29 LCD TV Service Manual After having finished all above, clicking the “Apply ”button to complete the configuration。 6.1.2 Hardware connecting You can update the software through a special tool (as following) - 29 -...
- Page 30 LCD TV Service Manual Connect the Debug board to the TV use VGA interface, the other parallel port to the computer, just as the following。 - 30 -...
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Page 31: Upgrading With The Isp_Tool4.0.9
LCD TV Service Manual 6.2 Upgrading with the ISP_TOOL4.0.9 6.2.1 Double click the ISP_TOOL4.0.9 icon and a dialog window will show as following。 Click the“Read ”button。 - 31 -... - Page 32 LCD TV Service Manual Choose the update file from the folder。 - 32 -...
- Page 33 LCD TV Service Manual The update file has been chosen successfully。 Click the“Auto”button and choose parameters as following。 Click the“Run”button Click the“connect”button,then show a dialog box as following。 - 33 -...
- Page 34 LCD TV Service Manual If show above then click the“Run”button again and again，till show the following dialog window。 - 34 -...
- Page 35 LCD TV Service Manual The above appears on the screen-the word “program ok”shows in the information displaying window,indicating upgrading is over。 6.2.2 After the update is over. Must Confirm the software Version in the Version Menu. If the update is successful, enter Factory Init Menu and select “Clear Unprotectly” a.
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Page 36: Troubleshooting
LCD TV Service Manual 7. Troubleshooting 7.1 Troubleshooting for Remote Control Remote control does not work Try new batteries Replace battery Replace RC Replace remote control Check IR receiver Change Led & IR board Replace Led & IR BD Change Led & IR cable Replace Led &... -
Page 37: Troubleshooting For Function Key
LCD TV Service Manual 7.2 Troubleshooting for Function Key Buttons does not work Replace tact switch Check switches Replace Key BD Check key board Check Key BD cable Change Key BD cable Replace main board - 37 -... -
Page 38: Tv Won't Power On
LCD TV Service Manual 7.3 TV won’t Power On TV won’t power on Make Sure Power Is LED light? Check Power source is live Inlet Replace BLUE Check Power Power Cord Cord Check/replace IR Only BD or Keypad one works Try Power on by Check signal RC and Button... -
Page 39: Troubleshooting For Audio
LCD TV Service Manual 7.4 Troubleshooting for Audio No sound Reconnect Check connecter Replace speaker wire Check speaker wire Replace speaker set Check speaker set Replace main board - 39 -... -
Page 40: Troubleshooting For Tv/Vga/Hdmi Input
LCD TV Service Manual 7.5 Troubleshooting for TV/VGA/HDMI input No picture on the screen Check Signal Source Make sure signal source is available Reconnect Check connect Replace cable Check cable Replace main board - 40 -... -
Page 41: Troubleshooting For Ypbpr Input
LCD TV Service Manual 7.6 Troubleshooting for YPbPr input No picture on the screen Check Source work or not Check Source Device Reconnect Check connect Check Wires (Green Blue, Red) Replace wires Replace main board - 41 -... -
Page 42: Troubleshooting For Video/S-Video/ Scart Input
LCD TV Service Manual 7.7 Troubleshooting for Video/S-Video/ SCART input No picture on the screen Check Source work or not Check Signal Source Reconnect Check connect Replace Cable/Wires Check Cable/ Wires Check SCART BD Replace SCART BD Replace main board - 42 -... -
Page 43: Explode View
LCD TV Service Manual 8. Explode View 9 Schematic circuit diagram Explode View： LCD19W57 Part Name Qty. Code No. Remark Pedestal WG6.121.056 Screw SJ2824-87 ST4×16C Black Screw SJ2824-87 ST4×16C Black Screw GB/T818-2000 M4×8 Black Back cover RSAG8.074.486 Bracket RSAG8.038.1201 Screw SJ2824-87 ST4×8F... - Page 48 5Vstb +12V_in 4.7K 4.7K STANDBY 470uF/16V 470uF/16V 0.1uF 0.1uF 4.7K 4.7K POWER-ON/OFF POWER-ON/OFF POWER-ON/OFF 3904 3904 同1319 E版修改 +5V_in 5Vstb +5V_mst +5V_in BL-ON/OFF IPWM|GND +12V_in +5V_all +12V_in +5V_in +5V_all 5Vstb R310 R310 5Vstb STANDBY R303 R303 +12V_in +12V_all IPWM|GND BL-ADJ R304 R304 4.7K...
- Page 49 VCC_USB5V XS11 XS11 528 amend USB3_5V USB2_5V USB1_5V DMP_DTV-R DMP_DTV-L DMP_DTV-R MR_OUT ML_OUT DMP_DTV-L SC/RC_GREEN SC/RC_BLUE SC/RC_BLUE SC/RC_GREEN Y_OUT PB_OUT SC/RC_RED SC/RC_RED PR_OUT COM_PR COM_PB SC1_VOUT CVBS_IN COM_Y SC1_VOUT C392 C392 R520 R520 0 R526 R526 100P 100P IR-in ON_USB IR-in REMOTE ON_USB...
- Page 50 0.81*(1+Rup/Rdown)=1.8V---Rup=10K, Rdown=8.2K Vcc3.3for MST9E19A analog AZ1084 AZ1084 Vcc1.8 for MST9E19A +3.3Vstb +5V_mst BLM31PG121SN1 BLM31PG121SN1 0.1uF 0.1uF 47uF/16V 47uF/16V 0.1uF 0.1uF 47uF/16V 47uF/16V 15uH 15uH VDDC AP1520 AP1520 5Vstb +3.3AVDD for +3.3AVDD for 3.9K 3.9K AVDD_HDMI AVDD_AU OCSET +3.3VA +3.3VA AVDD_HDMI pin6,pin12 AVDD_AU B/240A...
- Page 51 VDDP Location Near IC Pin. Location Near IC Pin. Location Near IC Pin. AMP-Rout AMP-R AUOutR3 AUOut3-R AUOutR2 AUOut2-R AMP-R AUOut3-R AUOut2-R VDDP BAV99 BAV99 CA13 CA13 47uF/16V 47uF/16V RP10 RP10 10nF 10nF 10nF 10nF 3906 3906 D100 D100 RP4.7KX4 RP4.7KX4 SYS_RST RP4.7KX4...
- Page 52 HDMI-RX2+ R_TX2+ R_TX2+ DATA2+ HDMI-RX2- R_TX2- R_TX2- DATA2 SHIELD HDMI-RX1+ G_TX1+ G_TX1+ DATA2- HDMI-RX1- G_TX1- G_TX1- GND1 DATA1+ HDMI-RX0+ B_TX0+ B_TX0+ DATA1 SHIELD HDMI-RX0- B_TX0- B_TX0- GND2 DAT1A- HDMI-RXC+ TXCLK+ TXCLK+ DATA0+ HDMI-RXC- TXCLK- TXCLK- DATA0 SHIELD GND3 DATA0- GND4 CLK+ CLK SHIELD GND5...
- Page 53 VGA/5V PHONEJACK PHONEJACK R108 R108 R109 R109 VGA-B+ 47nF 47nF BIN+ BIN+ R110 R110 VGA-G+ 47nF 47nF GIN+ GIN+ R111 R111 VGA-R+ 47nF 47nF RIN+ RIN+ R115 R115 D121 D121 D108 D108 D109 D109 R112 R112 R113 R113 R114 R114 R116 R116 INPAQ_VPORT...
- Page 54 封装为立式 SC/RC_RED 5VPI HDTV Input PC Audio Input SC/RC_RED SC/RC_GREEN SC/RC_GREEN R206 R206 SCART_VOUT SCART_VOUT SCART_VOUT SCART_VOUT SCART_VOUT SCART_VOUT SCART_VOUT SCART_VOUT SCART_VOUT SCART_VOUT D105 D105 SCART_VOUT PC-R PC-R PC-Rin SC/RC_BLUE PC-Rin SC/RC_BLUE SCART SCART INPAQ_VPORT INPAQ_VPORT R131 R131 R134 R134 R132 R132 C130...
- Page 55 U23 PIN2 connected to PIN1 B/G,DK,I,L U23 PIN2 connected to GND L' I2C ADDRESS(R263 NC): +5VA READ is 0X87 +5VA R219 R219 R220 R220 R221 R221 WRITE is 0X86 4.7K 4.7K R222 R222 R223 R223 4.7K 4.7K 4.7K 4.7K C133 C133 IF_TV 1N4148...
- Page 56 Audio OP(AUOUTL3/AUOUTR3; AUOUTL2/AUOUTR2) +12V_all R277 R277 6VBuf2 OP_VCC2 +12V_all R280 R280 OP_VCC2 R275 R275 C169 C169 R261 R261 6VBuf2 0.1uF 0.1uF R262 R262 OP_VCC2 CA38 CA38 R263 R263 C168 C168 CA39 CA39 0.1uF 0.1uF 100uF/16V 100uF/16V 100uF/16V 100uF/16V R267 R267 C171 C171 Scart2_R...
- Page 57 FOR TDA1308/PT2308 L26 FB,R298 NC; FOR TL062 L26 NC,R298 0; +5VA +12V_all 6VBuf1 R298 R298 CA40 CA40 R413 R413 C178 C178 10uF/16V 10uF/16V AMP-PPLout 2.2uF 2.2uF AMP-Lout+ AMP-Lout+ 2IN+ 2OUT+ R273 R273 R422 R422 C179 C179 AMP-PPRout C181 C181 2.2uF 2.2uF 1IN+ CON4_2.54...
- Page 58 [T-CON] [ASIC Control] [Terminator near T-CON] VDD25 VDD33 VDD33 R331 100 R331 100 RXE0-/G3 RXE0+/G2 R333 100 R333 100 R332 R332 RXE1-/G1 RXE1+/G0 100K 100K R336 100 R336 100 RXE2-/B7 RXE2+/B6 VDT_RC R337 100 R337 100 C289 C289 RXEC-/B5 RXEC+/B4 LVDSGND R335 100 R335 100...
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