FUNAI T27004-BD Service Manual
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FUNAI T27004-BD Service Manual

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Nexgen Mediatech Inc.
DATE
08/19/2005
T27004-BD Level 1 Service Manual
TITLE
VER
V1.0
PAGE
2/38
T27004-BD LCD TV
Service
Manual
Model No: T27004-BD
Brand: Funai
2

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  • Page 1 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 2/38 T27004-BD LCD TV Service Manual Model No: T27004-BD Brand: Funai...

  • Page 2: Table Of Contents

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 3/38 Table of content 1. Attention During Servicing………………………. 4 2. Purpose………………………………………………5 3. Definition of Level 1 Service……………………..5 4. Block Diagram………………………………………6 5. Disassembly/Assembly Procedures…………… 7 6. Trouble Shooting Analysis……………………...22 7.

  • Page 3: Attention During Servicing

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 4/38 1. Attention During Servicing 1-1. This TV should be operated from the type of power indicated on the using label. If you are not sure of the type of power available, consult your dealer or local power company..

  • Page 4: Purpose

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 5/38 2. Purpose The purpose of this service manual is for the reference of Authorized Service Provider (ASP) while proceeding level 1 service for the product mentioned in this manual.

  • Page 5: Block Diagram

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 6/38 4. Block Diagram LCD Panel Inverter LCD Panel Interface Audio Processor & Amplifier SDRAM Controller DC/DC Converter TV Module Interface A/D Converter Video Decoder Graphic Interface Audio &...

  • Page 6: Disassembly/Assembly Procedures

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 7/38 5. Disassembly/Assembly Procedures MODEL: T27004-BD Tools Disassembly steps: 1. Take off AV and PC Cover. 2. Recline TV set, release 4 screws and take off Stand Kit.
  • Page 7 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 8/38 3. Release 4 screws of Adapter Cover. Adapter Cover. 3-1. Pull off Adapter Connector by arrow direction. Adapter. 4. Release 8 screws.
  • Page 8 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 9/38 4-1. Release 6 screws. 4-2. Release 3 screws and take off Back Cover. Back Cover. 5. Take off Function Key Kit.
  • Page 9 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 10/38 5-1. Release 2 screws of Function Key Kit. 5-2. Pull off the Connect Wire. Function Key Kit. 6. Take off IR Board.
  • Page 10 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 11/38 6-1. Release 2 screws and pull off the Connect Wire. IR Board. 7. Take off right and lift Speak Box. 7-1. Release 6 screws of right Speak Box.
  • Page 11 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 12/38 7-2. Release 6 screws of left Speak Box. Speak Box. 8. Take off Speakers. 8-1. Use a pliers to take off Speakers wires of right side.
  • Page 12 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 13/38 8-2. Use a pliers to take off Speakers wires of left side. 8-3.Release 6 screws of right Speakers. 8-4.Release 6 screws of left Speakers. Speaker of 5W8Ω and 5W4Ω...
  • Page 13 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 14/38 9. Take off Wall Mount Bracket. 9-1. Release 3 screws of upside. 9-2. Release 3 screws of underside. Wall Mount Bracket.
  • Page 14 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 15/38 10. Take off PC Panel Bracket. 10-1. Release 8 screws of PC Panel Bracket. PC Panel Bracket. 11. Take off AV Panel Bracket. Take off Aluminum Tinsel.
  • Page 15 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 16/38 11-1. Release 6 screws of AV Panel Bracket . AV Panel Bracket. 12. Release 3 screws and take off Main Cover Bracket by arrow direction. Main Cover Bracket.
  • Page 16 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 17/38 13-1. Release 6 screws of Video Board. 13-2. Take off 3 wires of Video Board. Video Board. 14. Take off Main Board.
  • Page 17 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 18/38 14-1. Release 7 screws of Main Board. 14-2. Take off 11 wires of Main Board. Main Board. 15. Take off TV Panel Bracket.
  • Page 18 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 19/38 15-1. Release 2 screws of TV Panel Bracket. TV Panel Bracket. 16. Take off Panel Connector. Take off the black sticky tape. 16-1. Release screw of Ground Wire and take off Panel Connect Wire by arrow direction.
  • Page 19 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 20/38 17. Take off Inverter Connector. 17-1. Take off Connector Wire of Inverter by arrow direction. 18. Release 10 screws of Panel Bracket and take Front Bezel apart.
  • Page 20 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 21/38 19. Release 4 screws of Panel and take Panel Bracket apart. Panel Bracket. 20.Take off Inverter Board. Please pay attention to two places, please don't touch and striking.

  • Page 21: Trouble Shooting Analysis

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 22/38 6. Trouble Shooting Analysis Defect Mode Failure Analysis Repair Testing Light On Test Missing Line M/B Change Check PCB Check Panel Panel Change Abnormal Bright Dot...
  • Page 22 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 23/38 Defect Mode Failure Analysis Repair Testing Flicker Check PCB M/B Change Inverter Change Image is too Dark Gray Check PCB M/B Change Value Display Check Panel Panel Change R.
  • Page 23 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 24/38 Defect Mode Failure Analysis Repair Testing ON/OFF No Power Check PCB M/B Change Abnormal Check Keypad/B Keypad/B Change Check FFC FFC Change M/B Change Display LED Off...
  • Page 24 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 25/38 Defect Mode Failure Analysis Repair Testing Other Display Flicker Abnormal Check PCB M/B Change (Tapping) Display Inverter Change Check Panel Panel Change Cannot use Check keypad board...
  • Page 25 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 26/38 Defect Mode Failure Analysis Repair Testing Audio Sound Adjust M/B Change Check PCB Abnormal Abnormal No Sound Check Speaker Speaker Change Check FFC FFC Change Single Sound...
  • Page 26 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 27/38 Defect Mode Failure Analysis Repair Testing Video AV , SV ,CV Abnormal Check PCB M/B Change No Image ( AV , SV , CV , TV )
  • Page 27 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 28/38 Defect Mode Failure Analysis Repair Testing Abnormal Can’t Upgrade BIOS M/B Change Check PCB BIOS Upgrade Firmware IC Check Firmware IC TEST Completed...

  • Page 28: Update Bios

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 29/38 7. Update BIOS. ①. Under TV Mode, press CH & VOL Buttons at same time, then press MENU Button. ②. Showing F/W Version in the Factory Mode.
  • Page 29 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 30/38 ④. Pressing VOL Button, It is showing RUN and locks the keypads. ⑤. RS-232 port location. ⑤ Connecting RS-232 Cable to TV set.
  • Page 30 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 31/38 ⑤-2 . Connecting to the computer’s RS-232 port. To execute 8051 IspWriter.exe ⑥ program on your PC, as the right screen appeared: ⑦ .Clicking【Select Chip】or【 ▼ 】...
  • Page 31 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 32/38 ⑧ . Clicking【Select File0】or【 ▼ 】 to select “*.H00”. ⑨ . Selecting “Inte Hex＂, press “OK” next. ⑩ . Pressing【Select File1】or【 ▼ 】 to select “*.H01”.
  • Page 32 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 33/38 ⑪ . Confirming the connection RS-232 again, press【ConNect】next. ⑫ . Showing【Connected】and 【Program All】. ⑬ . Pressing【Program All】,then start to update F/W.
  • Page 33 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 34/38 ⑭ .Showing【Program: OK!】after update operation finished ,press “YES” next. ⑮ .After completed update F/W operation, pull out AC power cord, then insert again. Turn on the power and into Factory Mode “DATA RECALL”, press Vol...
  • Page 34 PC-AU IN /BLUE VGA PIN DEFIINITION D-SUB FOXCONN DV11201-P8/Female CN106 PC_AUR PC_AUR CN101 1 R_OUT 6 R_GND 11 NC EAR-JACK TYCO-1470610-6 PC_AUG PC_AUG change C109 from 150pF to 22pF VGA D-SUB 15CON/Female 2 G_OUT 7 G_GND 12 DDC SDA PC_AUL PC_AUL 3 B_OUT 8 B_GND...
  • Page 35 NEED BIG COPPER NEED BIG COPPER U203 B209 U201 A_2.5 B206 APLL_2.5 AP1117E33A A_3.3 0R/5%/0603 DVI_3.3 0.5A 0.5A AP1117E25A 0R/5%/0603 C282 TX0-B R246 C278 10uF/10V TX0+B S_5V 180R/5% 10uF/10V B207 TX1-B ADC_3.3 0R/5%/0603 TX1+B S_5V VDDC_2.5 0.5A B205 change R227 value MCU BusType : PIN240 TIE TO TX2-B 0.5A...
  • Page 36 SBA0 RP309 22R/16P8R DDR_DA31 SBA0 DQ31 DDR_DA30 SBA1 SBA1 DQ30 DDR_AR11 DDR_DA29 DQ29 DDR_AR10 DDR_DA28 DQ28 DDR_AR9 DDR_DA27 DQ27 DDR_AR8 DDR_DA26 A8(AP) DQ26 DDR_AR7 DDR_DA25 DQ25 DDR_AR6 DDR_DA24 DQ24 DDR_AR5 DDR_DA23 RP306 22R/16P8R DQ23 DDR_AR4 DDR_DA22 DQ22 DDR_AR3 DDR_DA21 DQ21 DDR_AR2 DDR_DA20 DQ20...
  • Page 37 FOR CMO 27",30" LCD PANEL INTERFACE 線走 W5/L8/W5 mil , LAY1 , 共 L AY 線長差 < 14mil , 需平行等長 Dropout Voltage Io=3A TX0- R417 0R/5% TX0M , Vd max = 1.3V TX0+ TX0P R415 0R/5% NEED BIG COPPER TX1- R411 0R/5% TX1M TX1+...
  • Page 38 change CN501from MCU5V MCU5V MCU5V DATA_SLE#:L -> MCU DATA ; MOLEX-53261-1090 to MCU5V MCU5V DATA_SLE#:H -> KEY PAD STM-MS240110R(B) SOT89-3 Change B509,B510,B503,B515 change connector to DATA C506 C502 ,B512,B505,B508 from 0Rto RA type change pin1 net from RP504 C501 10uF/10V R505 CP160808-121/2A 10K/16P8R...
  • Page 39 Change RP602,RP601 to 100K/16P8R , R615,R616,R617,R618 to 100K/0603 0.5A S_5V R617 R618 S_5V S_5V 100K/5% 100K/5% R616 R615 100K/5% 100K/5% MAU_S1 MAU_S0 MPS3450 audio select C615 C614 10uF/10V RP601 SC3_in RP602 100K/16P8R 100K/16P8R PC_AUL C624 4.7uF/10V SC3_in YPbPr PC_AUL HDMI_AUL HDMI_AUR C616 4.7uF/10V...
  • Page 40 footprint error change pin1 <=> pin3 U702 MC78L08 AU_8V AU_15V AOL_SRC1 C736 4.7uF/10V C732 4.7uF/10V AOR_SRC1 C762 C763 E703 C761 10uF/10V 100uF/35V C737 4.7uF/10V AOL_SRC2 AOR_SRC2 C731 4.7uF/10V SUBWOOFER_O E701 100uF/16V SUBWOOFER_O 1 R738 SPK_O_L C738 4.7uF/10V 10K/5% SPK_O_L R739 C743 4.7uF/10V 10K/5%...
  • Page 41 Modify change C836,C835 from 474 to 564/1206 modify function to MCU control audio mute add L803,L804,L805,L806,L904 change C801,C802,C803,C804 from 102 to R801/100R/0603,R804/10K/0603,Q801/PMBS3904/SOT23 pad increase to big EAR_DET Hi>CLASS-D IS DIS 104/0603 Modify L803,L804,L805,L806 LOAD IS 8 OHM EAR_DET Lo>CLASS-D IS EN 1.5A layout pad change parts...
  • Page 42 NEED BIG COPPER Dropout Voltage Io=3A , Vd max = 1.3V U901 NEED BIG COPPER AMC2576-ADJDD change connector R907 from 4802-06 E&T to SW VO=1.23V*(1+(RB/RA)) 5.5K/5% STM M241836 pin definition need U902 SYS_PW# AMC7586-5.0ST/ADD/5V/3A mirror , modify part SYS_PW# 5,7,8 R902 direction on PCB/A R906...
  • Page 43 Project Name : MANCHESTER-T27004 Version 0.33 Page List MAIN BOARD:MANCHESTER-T27004 MAIN V0.33.DSN UPDATE LIST PCB FILE:MANCHESTER-T27004 MAIN V0.33.pcb parts value please base on BOM change history please see attachments file 0 Cover Page 0-1 SYSTEM BLOCK DIAGRAM (PAL) 0-2 SYSTEM BLOCK DIAGRAM (NTSC) 1-1 MAIN I/O CON 1-2 LCD CONTROLLER MST5151 1-3 DDR...
  • Page 44 SCN1 HDMI CON LCD CONTROLLER LCD panel module MSTAR LCD PANEL CMO 27" MST5151L LVDS I/F LVDS I/F HDMI jump for DVI or HDMI select (R+-,G+-,R+-,B+-,CK+-) 19 18 DVI/HDCP/HDMI IN TMDS SCN2 DVI-D (R+-,G+-,R+-,B+-,CK+-) panel power 5V/1.5A lamp hi volt in put SCN3 INVERTER DDR SDRAM 4Mx32...
  • Page 45 SCN15 HDMI CON LCD CONTROLLER LCD panel module MSTAR LCD PANEL CMO 27" MST5151L LVDS I/F LVDS I/F HDMI jump for DVI or HDMI select (R+-,G+-,R+-,B+-,CK+-) 19 18 DVI/HDCP/HDMI IN TMDS SCN19 DVI-D (R+-,G+-,R+-,B+-,CK+-) panel power 5V/1.5A lamp hi volt in put SCN20 INVERTER DDR SDRAM 4Mx32...
  • Page 46 C109 33pF AVI/Y1 SCR1_AVI/Y SCR1_AVI/Y AV_G1 SCR1_AVIG SCR1_AVIG B118 CP160808T-121Y C105 B111 CP160808T-121Y 33pF C116 33pF H345 change R104 from 2K to 2.4K/0603 C110 33pF AVO1 SCR1_AVO SCR1_AVO AV_G1 SCR1_AVOG SCR1_AVOG 0~2V>TV MODE 0~0.59V>TV MODE B113 CP160808T-121Y C108 5~8V>16:9 MODE 1.47~2.35V>16:9 MODE B109 CP160808T-121Y 33pF...
  • Page 47 H345 AVI/Y2 AVO2 C210 33pF AVI/Y2 SCR2_AVI/Y SCR2_AVI/Y AV_G2 AV_G2 SCR2_AVIG SCR2_AVIG BLNK2 RED2 B218 CP160808T-121Y C206 B210 CP160808T-121Y 33pF RED2_G C214 SC2_SDA 33pF GREEN2 H345 SC2_SCL GREEN2_G STATUS2 C209 33pF change R204 from 2K to 2.4K/0603 BLU2 AVO2 SCR2_AVO SCR2_AVO SCA2I_L AV_G2...
  • Page 48 S-V IN , AV IN LAYOUT CLOSE TO VIDEO DECODER CN302 JALCO YKC22-0543N AV1_IN FLM160808-1R0K R310 AV1_G C302 L308 27R/5% 33pF AV_1 AV_1 AV1G L306 C316 B304 CP160808T-121Y FLM160808-1R0K 22nF B301 CP160808T-121Y C301 C310 L309 R304 33pF 150pF SH302 FLM160808-1R0K 47R/5% S0603 H345...
  • Page 49 R404 S_5V SCART VIDEO SEL MUX 10R/5% C401 C411 10uF/10V add parts R423~R430 0R/0603 AU_S0 SCR1_B R427 C412 10uF/10V SCR1_B SCR2_B R425 C410 10uF/10V C407 10uF/10V R430 SCR1_R SCR2_B SCR1_R SCART_B C413 10uF/10V R429 SCR2_R SCART_B SCR2_R SCR1_G R428 C405 10uF/10V SCART_R SCR1_G...
  • Page 50 S_5V U905 C903 C904 D901 C909 C902 L902 VCC3_VIDEO 27pF 27pF B906 C943 AP1117E33A C945 change C903,C904 from 22pF 27MHz 10uF/10V 10uF/10V to 27pF/NPO/0603 Y901 C956 C957 24.576MHz 33pF 33pF U904 change R920 from 27R to R912 S_5V 100R VCC1.8_VIDEO 33R/0603 ;...
  • Page 51 R618 R625 Tuner S_5V if use U906 then 10R/5% LAYOUT CLOSE TO VIDEO DECODER Adjustment R602 del R603,C601,R602 value CVBS out C611 C612 TU_GND 10uF 10uF level to 1Vp-p L602 0R/5% R602 100R R620 TU602 L601 Philips-FQ1216ME/I H-3 FOR PAL R621 Q604 CL160808-1R0K...
  • Page 52 0.5A U704 B703 U703 B702 0.5A 0.5A TT_3.3V TT_A2.5V TT_3.3V AP1117E33 CB160808T-601 AP1117E25A CB160808T-601 C716 C710 C726 C717 C715 C728 C708 S_5V S_5V 10uF/10V 10uF/10V PCB101 B701 B704 190-022702-101 TT_M3.3V 0.5A TT_D2.5V 0.5A CB160808T-601 CB160808T-601 T703 FL_CE T701 C733 C731 10uF/10V C718 C721...

  • Page 53: Explosion Diagram

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 35/38 8. Explosion Diagram...

  • Page 54: Level 1 Spare Parts List

    Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 36/38 9. Level 1 Spare Parts List T27004-BD LCD (3RD ASSY) 817-270040-002 Material English Description STD Usage PCBA 510-271012-051 PCBA T27004 VIDEO BOARD V0.34 510-271015-021 PCBA T27004 MAIN BOARD V0.33...
  • Page 55 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 37/38 200-270012-0101 NLC27C1 FUNCTION KEY 200-270015-0101 NLC27C1 FUNCTION PANEL 601-430008-040 SCREW BH D3*8 C2 650-040109-000 WASHER FIBER T=1.0 Stand Kit 527-270010-001 T270001-XD STAND KIT 200-270020-0101 27" STAND FRAME BC MODULE 200-270021-0101 27"...
  • Page 56 Nexgen Mediatech Inc. DATE 08/19/2005 T27004-BD Level 1 Service Manual TITLE V1.0 PAGE 38/38 250-270016-011 NLC27C1 WALL MOUNT BRACKET 250-270059-011 T27004 MAIN COVER BRACKET 250-270060-011 T27004 AV PANEL BRACKET 250-270062-011 T27004 PC PANEL BRACKET 250-270063-011 T27004 TV PANEL BRACKET 250-270064-011...

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