Sony KDL-32EX721 Service Manual
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Sony KDL-32EX721 Service Manual

History information. lcd digital color tv, az2f chassis. segment: 3a-2.
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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE MANUAL
AZ2F
CHASSIS
ORIGINAL MANUAL ISSUE DATE: 10/2011
Segment: 3a-2
Version
Date
Subject
1.0
10/2011
Original manual issue.
LCD Digital Color TV
9-888-458-01
KDL-32/40EX720,721,723,724 (AEP/UK)
S/N range 1,000,001-1,950,000

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  • Page 1 HISTORY INFORMATION FOR THE FOLLOWING MANUAL: SERVICE MANUAL AZ2F CHASSIS ORIGINAL MANUAL ISSUE DATE: 10/2011 Segment: 3a-2 Version Date Subject 10/2011 Original manual issue. LCD Digital Color TV 9-888-458-01 KDL-32/40EX720,721,723,724 (AEP/UK) S/N range 1,000,001-1,950,000...
  • Page 2 SERVICE MANUAL AZ2F CHASSIS Segment: 3a-2 LCD Digital Color TV 9-888-458-01...

  • Page 3: Model List

    MODEL LIST MODEL COLOR COMMANDER DEST. MODEL COLOR COMMANDER DEST. KDL-32EX720 Black RM-ED044 KDL-32EX721 Black RM-ED041 KDL-40EX720 Black RM-ED044 KDL-40EX721 Black RM-ED041 KDL-40EX723 Black RM-ED044 KDL-40EX724 Black RM-ED041 KDL-32/40EX720,721,723,724(AEP/UK)

  • Page 4: Warnings And Cautions

    Components identified by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that are critical for safe operation are identified in this manual.
  • Page 5 Les composants identifi es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont l’importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel.

  • Page 6: Use Caution When Handling The Lcd Panel

    WARNINGS AND CAUTIONS USE CAUTION WHEN HANDLING THE LCD PANEL When repairing the LCD panel, be sure you are grounded by using a wrist band. When repairing the LCD panel on the wall, the LCD panel must be secured using the 4 mounting holes on the rear cover. Do not press on the panel or frame edge to avoid the risk of electric shock.

  • Page 7: Handling The Ffc

    WARNINGS AND CAUTIONS HANDLING THE FFC When you insert / pull out FFC, please grasp a reinforcement board and main body of FFC. < Insertion > Please hold reinforcement board and plunge it to the depths. B board Reinforce plate <GOOD>...

  • Page 8: Safety Check-Out

    SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer: 1. Check the area of your repair for unsoldered or poorly soldered connections. Check the entire board surface for solder splashes and bridges. 2.
  • Page 9 SAFETY CHECK-OUT Leakage Test The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods. 1.

  • Page 10: Self Diagnosis Function

    SELF DIAGNOSIS FUNCTION The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to flash. The number of times the LED flashes translates to a probable source of the problem. A definition of the STANDBY LED flash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
  • Page 11 SELF DIAGNOSIS FUNCTION [SELF DIAGNOSTIC SAMPLE SCREEN DISPLAY] SELF CHECK        <1> NEXT PAGE‐> 000 RGB_SEN    ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ 00 000 RESERVED   ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ 00 000 RESERVED   ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ 00 002 MAIN_POWE  ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ 00 003 DC_ALERT   ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ 00 003 AUD_PROT   ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ 00 004 VLED       ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ 00 004 BALANCER   ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ 00 005 HFR_ERR    ‐‐‐‐‐‐‐‐‐‐...

  • Page 12: Sec 1. Disassembly

    SEC 1. DISASSEMBLY • There is a clutch in the yellow frame[ ]. Therefore please be careful during the disassembly or assembly of parts. Note: When removing the rear cover, to prevent damaging the rear cover and power supply cord, please refer to “APPENDIX-1”. Note: The Bezel and LCD panel have installation points with double sided tape.
  • Page 13 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-1. STAND BLOCK, HEAD STAND, NECK AND BASE STAND HEAD STAND NECK 1 Screw (USER SCREW ST) – Inside bag, screw assy 3 Screws (SCREW, +PSW M5X16) – Inside bag, screw assy BASE STAND 2 Screws (USER SCREW ST) – Inside bag, screw assy KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 14 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-2. REAR COVER AND AC COVER REAR COVER REAR COVER AC COVER AC COVER 6 Screws (SCREW, +PSW M3X6 W12) P/N: FX0001901 7 Screws (SCREW, +BVTP 4X12 TYPE2 IT-3) P/N: FX0005801 2 Screws (SCREW, ORNAMENTAL M6X12) P/N: FX0066301 1 Screw (SCREW +BVTP 3X12 TYPE2 IT-3) P/N: FX0003779 2 Screws (JOINT, STAND) P/N: FX0002101 KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 15 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-3. SWITCH UNIT AND SPEAKER SWITCH UNIT SPEAKER KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 16 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-4. HARNESS CONNECTOR ASSY 28P CONNECTOR ASSY 14P HARNESS ASSY FLEXIBLE FLAT CABLE FLEXIBLE FLAT CABLE 56 PIN KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 17 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-5. G10A BOARD G10A BOARD G10A BOARD 5 Screws (SCREW (+PSW) (M3X6)) P/N: FX0001341 INSULATION SHEET KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 18 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-6. LD BOARD LD SHIELD LD SHIELD 4 Screws (SCREW (+PSW) (M3X6)) P/N: FX0001341 LD BOARD KDL-32/40EX720,721,723,724(AEP/UK)

  • Page 19: Wireless Lan Card

    DISASSEMBLY 1-1. KDL-32EX721 1-1-7. WIRELESS LAN CARD WIRELESS LAN CARD WIRELESS LAN CARD 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 WIRELESS LAN CARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 20 DISASSEMBLY 1-1. KDL-32EX721 1-1-8. ANTENNA AND WIFI HOLDER (V) ANTENNA ANTENNA 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 WIFI HOLDER (V) WIFI HOLDER (V) 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 21 DISASSEMBLY 1-1. KDL-32EX721 1-1-9. ANTENNA AND WIFI HOLDER (H) ANTENNA ANTENNA 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 WIFI HOLDER (H) WIFI HOLDER (H) 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 22 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-10. SIDE BRACKET AND BATV BOARD SIDE BRACKET BATV BOARD BATV BOARD 5 Screws (SCREW (+PSW) (M3X6)) P/N: FX0001341 BATV BOARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 23 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-11. PANEL BRACKET PANEL BRACKET (H) PANEL BRACKET (C) PANEL BRACKET (C) PANEL BRACKET (C) KDL-32/40EX720,721,723,724(AEP/UK)

  • Page 24: Lcd Panel

    DISASSEMBLY 1-1. KDL-32EX720/721 1-1-12. LCD PANEL LCD PANEL LCD PANEL KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 25 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-13. HMS3 BOARD AND FRENEL LENS HMS3 BOARD 1 Screw (SCREW +BVTP 3X8 TYPE2 IT-3) P/N: FX0012601 FRENEL LENS HMS3 BOARD HMS3 BOARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 26 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-14. HLR2 BOARD BEZEL ASSY HLR2 BOARD HLR2 BOARD HLR2 BOARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 27 DISASSEMBLY 1-1. KDL-32EX720/721 1-1-15. HEM2 BOARD AND BEZEL ASSY HEM2 BOARD BEZEL ASSY HEM2 BOARD HEM2 BOARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 28 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-1. STAND BLOCK, HEAD STAND, NECK AND BASE STAND HEAD STAND NECK 1 Screw (USER SCREW ST) – Inside bag, screw assy 3 Screws (SCREW, +PSW M5X16) – Inside bag, screw assy BASE STAND 2 Screws (USER SCREW ST) – Inside bag, screw assy KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 29 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-2. REAR COVER AND AC COVER REAR COVER REAR COVER AC COVER AC COVER 5 Screws (SCREW, +PSW M3X6 W12) P/N: FX0001901 7 Screws (SCREW, +BVTP 4X12 TYPE2 IT-3) P/N: FX0005801 2 Screws (SCREW, ORNAMENTAL M6X12) P/N: FX0006301 1 Screw (SCREW +BVTP 3X12 TYPE2 IT-3) P/N: FX0003779 2 Screws (JOINT, STAND) P/N: FX0002101 KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 30 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-3. SWITCH UNIT AND SPEAKER SWITCH UNIT SPEAKER KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 31 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-4. HARNESS CONNECTOR ASSY 28P CONNECTOR ASSY 14P FLEXIBLE FLAT CABLE HARNESS ASSY FLEXIBLE FLAT CABLE 56 PIN KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 32 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-5. G4B BOARD G4B BOARD G4B BOARD 3 Screws (SCREW (+PSW) (M3X6)) P/N: FX0001341 INSULATION SHEET KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 33 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-6. LD BOARD LD SHIELD LD SHIELD 4 Screws (SCREW (+PSW) (M3X6)) P/N: FX0001341 LD BOARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 34 DISASSEMBLY 1-2. KDL-40EX721/724 1-2-7. WIRELESS LAN CARD WIRELESS LAN CARD WIRELESS LAN CARD 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 WIRELESS LAN CARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 35 DISASSEMBLY 1-2. KDL-40EX721/724 1-2-8. ANTENNA AND WIFI HOLDER (V) ANTENNA ANTENNA 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 WIFI HOLDER (V) WIFI HOLDER (V) 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 36 DISASSEMBLY 1-2. KDL-40EX721/724 1-2-9. ANTENNA AND WIFI HOLDER (H) ANTENNA ANTENNA 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 WIFI HOLDER (H) WIFI HOLDER (H) 1 Screw (SCREW (+PSW) (M3X6)) P/N: FX0001341 KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 37 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-10. SIDE BRACKET AND BATV BOARD SIDE BRACKET BATV BOARD BATV BOARD 5 Screws (SCREW (+PSW) (M3X6)) P/N: FX0001341 BATV BOARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 38 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-11. PANEL BRACKET PANEL BRACKET (H) PANEL BRACKET (C) PANEL BRACKET (C) PANEL BRACKET (C) PANEL BRACKET (C) KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 39 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-12. LCD PANEL LCD PANEL LCD PANEL KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 40 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-13. HMS3 BOARD AND FRENEL LENS HMS3 BOARD 1 Screw (SCREW +BVTP 3X8 TYPE2 IT-3) P/N: FX0003779 FRENEL LENS HMS3 BOARD HMS3 BOARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 41 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-14. HLR2 BOARD BEZEL ASSY HLR2 BOARD HLR2 BOARD HLR2 BOARD KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 42 DISASSEMBLY 1-2. KDL-40EX720/721/723/724 1-2-15. HEM2 BOARD AND BEZEL ASSY HEM2 BOARD BEZEL ASSY HEM2 BOARD HEM2 BOARD KDL-32/40EX720,721,723,724(AEP/UK)

  • Page 43: Sec 2. Adjustment

    SEC 2. ADJUSTMENT HOW TO ENTERING SERVICE MODE 1) Turn on the main power switch to place this set in standby mode. 2) Press the buttons on the remote commander as follows, and entering service mode. DISPLAY Channel Volume TV POWER 3) Service mode display.
  • Page 44 ADJUSTMENT 4) How to use the remote commander. Function The flow of control Service mode on <Test>+<TV>/<Display><5><Vol Up><Power> Service mode off <Other> / <Power off + on> Item up / down <1>/<4> Category up / down <2>/<5> Data up / down <3>/<6>...
  • Page 45 ADJUSTMENT WHITE BALANCE ADJUSTMENT Note: Please execute this adjustment if necessary. Change Data of “VPC” service mode. (“006 WB” category) a. Press “1” or “4” on remote to select WB adjustment menu. b. Change data by pressing “3” or “6”. Each range of these items is 0~255. c.
  • Page 46 ADJUSTMENT RESTORE WHITE BALANCE / GAMMA ADJ-DATA TO B BOARD Note: Please apply after USB-DL when B board is replaced. Change Data of “VPC” service mode. a. Select “010 DATA_COPY” category by pressing “2 / 5” on remote. b. Change data from “0” to “1” by pressing “1 / 4” on remote. c.

  • Page 47: Vcom Adjustment

    ADJUSTMENT VCOM ADJUSTMENT (IMPORTANT – Only for S-LCD 60Hz Panels) Note: Please execute this adjustment if necessary. SERVICE 1) Change Data of “VPC” service mode. VCOM a. Select “002 VCOM” category by pressing “2 / 5” on remote. ENABLE               0 b. Select “000 ENABLE” item by pressing “1 / 4” on remote. c.

  • Page 48: Save Changing Data

    ADJUSTMENT SAVE CHANGING DATA 1) Change Data of “Chassis” or “VPC” service mode 2) Write data for “Chassis” or “VPC” service mode a. Press “Mute” on remote. It shows green “SERVICE” changes to green “WRITE”. b. Press “0” or “enter” on remote. Green “WRITE” changes to red “WRITE”. It indicate writing is processing. c.
  • Page 49 ADJUSTMENT CHANGE DATA Note: “Digital” service mode don’t have to Save. (except “002 MODEL” and “005 CHAPRESET” category) DIGITAL SERVICE 1) Change Data of “Digital” service mode. (except “003 DIG_SRV_MODE” category) 004 TUNER a. Press “2 / 5” on remote to select (up / down) category. 000 !A_NOSIG_DET   ...
  • Page 50 ADJUSTMENT 3) Write data for “Digital” service mode. ( “002 MODEL” category) Note: This procedure operation, when replaced the B board. Note: Do not write a wrong segment or destination information in Product ID. When the wrong setting is written, TV may not operate. 000 SEG -----------------Select JDM code information 001 DEST ---------------Select destination information 002 MODELNAME ---Select model name...

  • Page 51: Set To Shipping Condition

    ADJUSTMENT SET TO SHIPPING CONDITION How to do shipping condition. a. Move to “Digital” service mode. Press “8” on remote. It shows green “SERVICE” changes to green “RST-”. Press “mute” on remote. Added green “EXE” after green “RST-” . d. Press “0” on remote. Green “EXE-RST” changes to red “EXE-RST”. It indicate writing is processing. After a while, red “EXE-RST”...

  • Page 52: Change The Emitter Output Level

    ADJUSTMENT CHANGE THE EMITTER OUTPUT LEVEL Note: To reduce the emitter LED output power strength. Change Data of “VPC” service mode a. Select “005 TD” category by pressing “2 / 5” on remote. b. Select “000 EMIT_STR” item by pressing “1 / 4” on remote. c.

  • Page 53: Sec 3. Trouble Shooting

    SEC 3. TROUBLE SHOOTING 3-1. TRIAGE CHART Note: Power board is different in name every inch. Therefore this section displays difference point in "*". Symptoms - Shutdown. Power LED Video - missing or distorted Remote Network Audio Skype blinking red diagnostics sequences Power Reference No Green...

  • Page 54: Troubleshooting

    TROUBLE SHOOTING 3-2. FLOW CHART START Does the Power Led Is the network stay on when the No Power connection OK? Can’t connect network TV is switched on ? Is the Standby Led blink ? Standby LED Blink Is the 3D function OK? 3D malfunction Is the Picture and...
  • Page 55 TROUBLE SHOOTING 3-3. NO POWER No Power Check STBY 3.3V Replace at pin 10 of CN6001 Between G* Board to G* Board B* Board Harness on the B* Board B* Board Harness KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 56 TROUBLE SHOOTING 3-4. STANDBY LED BLINK 1) 2 times blinking (Main Power Error) 2 times blinking Check REG12V at 12V NG Replace pins 2/3 of Between G* Board to G* Board CN6001 on B* Board Harness the B* Board 12V OK Harness B* Board KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 57 TROUBLE SHOOTING 2) 3 times blinking (DC Alert, Audio Error and Communication Error) AUDIO 3 times blinking Check AUDIO+12.5V DC_ALERT at pins 8/9 of G* Board CN6001 on the B* Board Check D+1.2V at F6001,IC6005,etc pin14 of IC6005 (B* Board) on the B* Board Check +12.5V F4601,IC4601,etc...
  • Page 58 TROUBLE SHOOTING 3) 4 times blinking (Balancer Error) 4-time blinking Below 0.84V Check PANEL_FAIL at B* Board pin 7 of CN6002 on the B* Board Between 0.84V to 2.65V Symptom improvement Change G* Board G* Board Symptom improvement Change LED Driver Board LED Driver Board Panel KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 59 TROUBLE SHOOTING 4) 5 times blinking (T-con Error) 5-time blinking 12V NG Check PANEL_VCC Panel (T-con) at pin 1 of B* Board G* Board change CN6001 on on the B* Board 12V OK Symptom improvement Symptom improvement Replace the Harness Between G* and Panel Harness Panel (T-con)
  • Page 60 TROUBLE SHOOTING 5) 6 times blinking (Backlight Error) 6-time blinking Symptom improvement Check the harness between Change LED driver Harness LED Driver Board the T-con board and the board LED driver board. Symptom Symptom improvement improvement Change B* G* Board Change G* board B* Board board...
  • Page 61 TROUBLE SHOOTING 6) 7 times blinking (Temperature Error) 7) 8 times blinking (Software Error) 7 times blinking 8 times blinking Setting circumstance If the Symptom is OK? Set to another Improved by changing B* Board Temperature, Location, etc. the WIFI module Ventilation, etc.
  • Page 62 TROUBLE SHOOTING 8) 10 times blinking (Emitter Error) 10 times blinking Check the harness between Harness the T-con Board and the HEM2 Board Change HEM2 Board T-CON Board HEM2 Board KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 63 TROUBLE SHOOTING 3-5. NO PICTURE No Picture Press HOME Key Replace the B-T-con, Check the G*-LD* Harness Change B* Board OSD displayed? T-con-LD* FFC B-T-con, B* Board Harness B* Board T-con-LD* FFC LCD Panel Change G* Board (T-con, LD*) G* Board KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 64 TROUBLE SHOOTING 3-6. NO SOUND No Sound “Audio System” Check the Change to “Speakers setting” “TV Speaker” “TV Speakers” Check the Speaker Replace B* Board Harness the B* Board Speaker Harness Speaker KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 65 TROUBLE SHOOTING 3-7. TV COMMANDER BUTTONS MALFUNCTION 1) TV button malfunction Button malfunction on the TV Replace the Harness between B* to Switch Unit change Switch Unit Switch Unit Harness B* Board KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 66 TROUBLE SHOOTING 2) IR remote commander malfunction TV isn’t controlled by remote commander Green LED blinks Green LED light at power indicator Mechanical at power indicator when using commander (ex. bezel) near sensor’s window Check the Harness between the B* Board Sensor is broken and the HLR Board Exchange the Harness...
  • Page 67 TROUBLE SHOOTING 3-8. NETWORK MALFUNCTION 1) Wired Network malfunction Wired Network on the TV Connection result Check the Ethernet Cable Ethernet Cable Cable Connection B* Board Auto Connection result Wired Set-up Check Local router DHCP server Local Access IP address setting Manual Check IP address and Local router setting...
  • Page 68 TROUBLE SHOOTING 2) USB Wireless Network malfunction 3) Internal Wireless Network malfunction Wireless Network Wireless Network on the TV on the TV Error Message appear Error Message appear when the Wireless USB Dongle when the Wireless Wireless Module, Harness Network is selected? Network is selected? Is the radio field Is the radio field...
  • Page 69 TROUBLE SHOOTING 3-9. 3D MALFUNCTION 3D malfunction Check IR has been output whether there is Is 3D glasses on HEM board, interception thing 3D glasses power on? during 3D displaying. between Emitter and glasses. Power on Change Replace HEM2 board Watching environment Charge battery [How to confirm IR-output.]...
  • Page 70 TROUBLE SHOOTING 3-10. Skype MALFUNCTION 1/2 Skype malfunction USB plugged? Insert USB Insert other Skype unit -Unplug other USB device Connect to other Able to run Skype App? B* board -AC OFF/ON USB port USB dongle Spec. USB overload. B* board Skype unit Network connected? Do network setup...
  • Page 71 TROUBLE SHOOTING 3-10. Skype MALFUNCTION 2/2 Previous page Audio problem Far end Sound quality? Move unit away Auto-Focus work? Call Skype sound test Video/Audio quality? No video? from speaker Video problem Network speed Enough network speed? Far end setting/system Skype unit far end system issue Manual Focus work? Skype unit...
  • Page 72 TROUBLE SHOOTING 3-11. HDD-Rec MALFUNCTION HDD Rec Malfunction HDD is connected Connect to the to the appropriate appropriate port USB port? USB Hub is inserted Is the drive size larger Only 32GB~2TB in between the than 32GB and is supported USB port and HDD? Smaller than 2TB?? USB Hub is...

  • Page 73: Sec 4. Diagrams

    SEC 4. DIAGRAMS 4-1. BLOCK DIAGRAM Ether USB1 DiSEqC_Out X’tal 27MHz USB2 CI/CI+ H Con. TCON DiSEqC_In Silicon [LNBH23] Satellite Satellite Zero-IF Tuner Ext Demod IFAGC Cable Cable [HORUS3] [SEKITO2] I2CB DDR3 USB4 Current Current USB3 DMD_CLK_ENABLE2 Limit Limit –1333 PEL3 DMD_CLK_ENABLE1 Wifi...

  • Page 74: Connector Diagram

    DIAGRAMS 4-2. CONNECTOR DIAGRAM 4-2-1. KDL-32EX720/721 (1/2) BAT- V board T- con Board HMS3 board BLK Board BLK Board JAM 3pin Straight To BAT Panel_Ctrl2 / TCON_RD Y Panel_Ctrl3 / T_TD_HSY -OUT1 PANEL FFC P-1/2 1 1 - 821- 130- 11 BD GND Panel_Ctrl4 / X_FRC_RS SLCD : 96pin...
  • Page 75 DIAGRAMS 4-2-1. KDL-32EX720/721 (2/2) T- con Board HEM2 Board t t i Except EX720 Model GLS_CTR GLS_CTRL2 EMI_FAIL 1-819-460-11 1-821-135-11 CN6704 (32" G10A) CN6151(46"G5D) S JM20-28WLB To B board (100106) T-CON_Vcc12V T- con T- con T-CON_VCC12V T-CON_VCC_12V To B 24 BDR_ASU_12V 1-819-468-11 Option...
  • Page 76 DIAGRAMS 4-2-2. KDL-40EX720/721/723/724 (1/2) BAT- V board T- con Board(PEL3) HMS3 board BLK Board BLK Board JAM 3pin Straight To BAT nel_Ctrl2 / TCON_RDY l3 / T_TD_HSYNC PANEL FFC -OUT1 P-1/2 1 1 - 821- 130- 11 SLCD : 96pin -OUT2 SHARP : 80pin (For Asura)
  • Page 77 DIAGRAMS 4-2-2. KDL-40EX720/721/723/724 (2/2) HEM2 Board t t i T- con Board(PEL3) Except EX720 Model EMI_FAIL 1-821-135-11 SM04B-PASS-TBT(LF)(SN) CN6704 (37" G10A) CN6151 (40" G4B) SJM20-28WLB To B board (100106) T- con T-CON_Vcc12V T-CON_VCC12V T- con T-CON_VCC_12V To B BDR_ASU_12V Option 1-819-468-11 BDR_ASU_12V REG12V...

  • Page 78: Circuit Boards Location

    DIAGRAMS 4-3. CIRCUIT BOARDS LOCATION KDL-32EX720/721 KDL-40EX720/721/723/724 LD Board BATV Board BATV Board G10A Board G4B Board LD Board Wireless LAN Card Wireless LAN Card (EX721 Only) Switch Unit (EX721/724 Only) T-CON T-CON Switch Unit HEM2 Board HEM2 Board HLR2 Board HMS3 Board HMS3 Board HLR2 Board...

  • Page 79: Sec 5. Exploded Views

    SEC 5. EXPLODED VIEWS • Items with no part number and no description are not stocked because they are seldom required for routine service. • The construction parts of an assembled part are indicated with a collation number in the remark column. •...

  • Page 80: Exploded Views

    EXPLODED VIEWS 5-1. KDL-32EX720/721 5-1-1. CHASSIS-1 REF. No. PART No. DESCRIPTION REMARK 1-489-443-21 SWITCH UNIT 1-858-597-12 LOUDSPEAKER (3X10CM) 1-838-271-12 POWER-SUPPLY CORD (WITH CONN.) 1-458-355-11 WIRELESS LAN CARD EX721 4-275-433-02 REAR COVER(32) 1-754-746-11 ANTENNA EX721 1-754-748-11 ANTENNA EX721 4-259-168-11 COVER, AC (M) 4-267-488-11 STAND HEAD (M9) EX720...
  • Page 81 EXPLODED VIEWS 5-1. KDL-32EX720/721 5-1-2. CHASSIS-2 REF. No. PART No. DESCRIPTION REMARK 4-266-696-02 BEZEL(32 CAS) EX720 4-266-696-22 BEZEL(32 CAS) EX721 A-1792-512-A HEM2 MOUNT A-1792-878-B HLR2 MOUNT(B-O-AEP) * 1-856-184-11 FRENEL LENS A-1806-495-A HMS3_B MOUNT 1-811-339-12 LCD PANEL (S32EDL) (S-LCD PANEL) 1-811-353-12 LCD PANEL (A32V7) (AUO PANEL) 1-811-424-11 LCD PANEL (FDMF315NN01) (CMI PANEL)
  • Page 82 EXPLODED VIEWS 5-2. KDL-40EX720/721/723/724 5-2-1. CHASSIS-1 REF. No. PART No. DESCRIPTION REMARK 1-489-443-21 SWITCH UNIT 1-858-594-12 LOUDSPEAKER (3X15CM) 1-838-271-12 POWER-SUPPLY CORD (WITH CONN.) 1-458-355-11 WIRELESS LAN CARD EX721,724 4-275-424-02 REAR COVER(40) 1-754-746-11 ANTENNA EX721,724 1-754-749-11 ANTENNA EX721,724 4-259-168-11 COVER, AC (M) 4-267-495-11 STAND HEAD (ML9) EX720...
  • Page 83 EXPLODED VIEWS 5-2. KDL-40EX720/721/723/724 5-2-2. CHASSIS-2 REF. No. PART No. DESCRIPTION REMARK 4-266-690-02 BEZEL(40 CAS) EX720,723 4-266-690-22 BEZEL(40 CAS) EX721,724 A-1792-512-A HEM2 MOUNT A-1792-878-B HLR2 MOUNT(B-O-AEP) * 1-856-184-11 FRENEL LENS A-1806-495-A HMS3_B MOUNT 1-811-340-12 LCD PANEL (S40EDL) (S-LCD PANEL) 1-811-354-12 LCD PANEL (A40V1) (AUO PANEL) 1-811-481-11 LCD PANEL (C400HK2-LE1) (CHI PANEL)

  • Page 84: Other Parts

    5-3. OTHER PARTS 5-3-1. MISCELLANEOUS 32 Inches * 1-838-866-12 FLEXIBLE FLAT CABLE N4 32S CN2001(BAT-V)-PANEL(1) * 1-910-800-99 CONNECTOR ASSY 14P CN6705(G10)-CN1002(BLK)(1) * 1-910-801-02 CONNECTOR ASSY 28P CN6001(BAT-V)-CN6002(BAT-V)-CN6704(G10)(1) * 1-910-801-40 FLEXIBLE FLAT CABLE 56 PIN CN11(T-CON)-CN11(LD)(1) * 1-910-801-06 HARNESS ASSY (EX720) CN9006(BAT-V)-CN100(HLR2)-HMS3-HEM2-SW /CN4601(BAT-V)-SP(1) 1-910-801-48 HARNESS ASSY (EX721)

  • Page 85: Common Parts

    5-3-2. COMMON PARTS 7-600-031-96 TAPE (3M 1350FW -1)15MMX66M W HTl) (to fix the wires to the LCD panel) 4-272-200-01 DOUBLE SIDED TAPE (PANEL) 5-3-3. ACCESSORIES * 4-269-995-25 MANUAL, INSTRUCTION EX720(AEP),EX721 (DE, ES, FR, NL, PT) * 4-269-995-35 MANUAL, INSTRUCTION EX720(AEP),EX721,EX723,EX724 (BG, CZ, DK, FI, GR, HU, IT, NO, PL, RO, SE, SK, TR) * 4-269-995-46 MANUAL, INSTRUCTION...
  • Page 86 SONY Corporation Consumer English Products & Services Group Home 2011JL08-Data Entertainment Business Group Made in Japan Quality Assurance Div. Service 9-888-458-01 © 2011. 10 Promotion Dept Service Sec.1 KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 87 APPENDIX-1 PROCEDURE TO REMOVE THE REAR COVER 1. Remove the screws from the REAR COVER and the COVER AC. 2. Open the REAR COVER with the “COVER AC” and AC cable attached. Note: Make sure to hold the cable not to give any tension to the connector and scratch damage for the cable. 3.
  • Page 88 APPENDIX-1 PROCEDURE TO REMOVE THE REAR COVER (32) 1. Remove all the screws on the Rear Cover and the AC Cover. 2. Open the Rear Cover in the order as shown below. Notice: Insert plastic part (less than 15mm) *Do not use metal one. *Take care not to scratch parts.
  • Page 89 APPENDIX-1 PROCEDURE TO REMOVE THE REAR COVER (32) 3. Open the Rear Cover with the “COVER AC” and the AC cable attached. Note: Make sure to hold the cable not to give any tension to the connector and scratch damage for the cable. 4.
  • Page 90 APPENDIX-1 PROCEDURE TO REMOVE THE REAR COVER (40) 1. Remove all the screws on the Rear Cover and the AC Cover. 2. Open the Rear Cover in the order as shown below. Note: Do not open quickly when hooks 1~5 are locked. Notice: This hook is automatically released .
  • Page 91 APPENDIX-1 PROCEDURE TO REMOVE THE REAR COVER (40) 3. Open the Rear Cover with the “COVER AC” and the AC cable attached. Note: Make sure to hold the cable not to give any tension to the connector and scratch damage for the cable. 4.
  • Page 92 APPENDIX-1 PROCEDURE TO ASSEMBLE THE REAR COVER (32) 1. Put the Rear Cover from top side. Notice: 2. Push and confirm the locks in the order as shown below. 3. Confirm all the locks are fitting.. KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 93 APPENDIX-1 PROCEDURE TO ASSEMBLE THE REAR COVER (40) 1. Put the Rear Cover from top side. 2. Push and confirm the locks in the order as shown below. <37 Inch> <40 Inch> <46 Inch> 3. Confirm all the locks are fitting.. KDL-32/40EX720,721,723,724(AEP/UK)
  • Page 94 APPENDIX-2 1. PROCEDURE TO REMOVE THE LCD PANEL FROM THE BEZEL ASSY Peel off the double sided tape between the bezel assembly and the LCD panel when exchanging the LCD panel, etc, follow the instructions below. <32/40 inch> 1.Take off “Bracket, Panel” 2.Peel off the double sided tape (1)Take off LED board to assist with tape peel off.
  • Page 95 APPENDIX-2 2. EXCHANGING THE DOUBLE SIDED TAPE Because the double sided tape’s strength weakens when the tape has been peeled off once, peel off all the tape from bezel assembly, and stick new ones on (P/N: 4-272-200-01) <32/40 inch> 1.Peel off the double sided tape from the Panel. 2.Stick double sided tape.
  • Page 96 APPENDIX-2 3. PUTTING THE PANEL ON TO THE BEZEL Pay attention to the double sided tape, put the panel on to the bezel assembly as shown below. 1.Putting Panel on to bezel 2.Lock with hooks of Bezel / Putting on “Bracket, panel” (1) Put from upper side adjusting position to L/R side.

This manual is also suitable for:

Kdl-40ex720Kdl-32ex720Kdl-40ex723Kdl-40ex721Kdl-40ex724

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