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Sony KDL-32EX720 Service Manual

Sony KDL-32EX720
161 pages
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SERVICE MANUAL
Version Date Subject
1.0 02/2011 Original manual issue.
2.0 03/2011 Addition of 55 Inch Models.
3.0 03/2011 Addition of 37 Inch UK Model
4.0 03/2011 Update Error Code Table
(P11)
5.0 05/2011 Addition of tape part number (P142)
6.0 06/2011 Serial Number update (P1)
LCD Digital Color TV
9-888-389-06
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 2/2011
AZ2F CHASSIS
Segment: 3a-2
KDL-32/37/40/46/55EX720,721,723,724,725,726,727,728,729 (AEP/UK/RUSSIA)
S/N range 3,000,001-4,510,000 and 5450001~5500000(FX)

Table of Contents

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Sony KDL-32EX720 Specifications

General IconGeneral
Audio systemDolby Digital Plus / Dolby Pulse
RMS rated power20 W
Number of speakers2
Comb filter3D
Display diagonal32 \
Progressive scanYes
Display technologyLCD
Native aspect ratio16:9
Native refresh rate100 Hz
Supported video modes1080i, 1080p, 480i, 480p, 576i, 576p, 720p
Viewable size diagonal800 mm
Supported graphics resolutions1920 x 1080 (HD 1080)
Number of OSD languages27
RS-232 ports0
HDMI ports quantity4
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Digital audio optical out1
Product colorBlack
VESA mountingNo
Panel mounting interface200 x 200 mm
Annual energy consumption88 kWh
Package depth132 mm
Package width851 mm
Package height628 mm
AC input voltage220 - 240 V
AC input frequency50 - 60 Hz
Power consumption (standby)0.25 W
Power consumption (typical)101 W
Digital signal format systemDVB-C, DVB-T
Weight and Dimensions IconWeight and Dimensions
Depth (with stand)216 mm
Width (with stand)755 mm
Height (with stand)510 mm
Weight (with stand)10400 g
Depth (without stand)42 mm
Height (without stand)480 mm
Weight (without stand)7900 g

Summary

History Information

Model List

General Safety and Handling Precautions

Service Warnings and Cautions (English)

Critical warnings and cautions for service personnel regarding electrical safety.

LCD Panel Handling

Specific safety guidelines for handling the LCD panel to prevent damage.

FFC Handling

Proper procedures for inserting and removing Flexible Flat Cables (FFC).

Safety Check-Out Procedures

Leakage Testing

Procedures for measuring AC leakage current from exposed metal parts to ground.

Finding a Good Earth Ground

Methods to identify a proper earth ground connection for testing.

Self Diagnosis Function

Diagnostic Test Indicators

Explanation of STANDBY LED flash counts indicating error causes.

Standby LED Flash Count Display

Visual representation of STANDBY LED flash patterns and their meanings.

Self-Diagnostic Screen Display

How to access and interpret the self-diagnostic screen for error confirmation.

Disassembly Procedures

KDL-32EX Series Disassembly

Step-by-step guide for disassembling the KDL-32EX series TV models.

Stand Block, Head Stand, Neck and Base Stand Assembly (KDL-32EX)

Instructions for removing and assembling stand components for KDL-32EX models.

Rear Cover and AC Cover Removal (KDL-32EX)

Procedure for removing the rear and AC covers for KDL-32EX models.

Switch Unit and Speaker Removal (KDL-32EX)

Instructions for removing the switch unit and speaker for KDL-32EX models.

Harness Removal (KDL-32EX)

Guide for disconnecting and removing the internal harness cables for KDL-32EX models.

G10A Board Removal (KDL-32EX)

Steps to remove the G10A board from the KDL-32EX series TV.

LD Board Removal (KDL-32EX)

Procedure for removing the LD board from the KDL-32EX series TV.

Wireless LAN Card Removal (KDL-32EX specific models)

Steps for removing the wireless LAN card from specific KDL-32EX models.

Antenna and WiFi Holder (V) Removal (KDL-32EX)

Instructions for removing the antenna and vertical WiFi holder for KDL-32EX models.

Antenna and WiFi Holder (H) Removal (KDL-32EX)

Instructions for removing the antenna and horizontal WiFi holder for KDL-32EX models.

Side Bracket and BATV Board Removal (KDL-32EX)

Procedure for removing the side bracket and BATV board for KDL-32EX models.

Panel Bracket Removal (KDL-32EX)

Guide for removing panel brackets from the KDL-32EX series TV.

LCD Panel Removal (KDL-32EX)

Detailed steps for safely removing the LCD panel from KDL-32EX models.

HMS3 Board and Frenel Lens Removal (KDL-32EX)

Procedure for removing the HMS3 board and Frenel lens on KDL-32EX models.

HLR2 Board Removal (KDL-32EX)

Steps to remove the HLR2 board from the KDL-32EX series TV.

HEM2 Board and Bezel Assembly Removal (KDL-32EX)

Guide for removing the HEM2 board and bezel assembly for KDL-32EX models.

KDL-37EX Series Disassembly

Step-by-step guide for disassembling KDL-37EX series TV models.

Stand Block, Head Stand, Neck and Base Stand Assembly (KDL-37EX)

Instructions for removing and assembling stand components for KDL-37EX models.

Rear Cover and AC Cover Removal (KDL-37EX)

Procedure for removing the rear and AC covers for KDL-37EX models.

Switch Unit and Speaker Removal (KDL-37EX)

Instructions for removing the switch unit and speaker for KDL-37EX models.

Harness Removal (KDL-37EX)

Guide for disconnecting and removing the internal harness cables for KDL-37EX models.

G10B Board Removal (KDL-37EX)

Steps to remove the G10B board from the KDL-37EX series TV.

LD Board Removal (KDL-37EX)

Procedure for removing the LD board from the KDL-37EX series TV.

Side Bracket and BATV Board Removal (KDL-37EX)

Procedure for removing the side bracket and BATV board for KDL-37EX models.

Panel Bracket Removal (KDL-37EX)

Guide for removing panel brackets from the KDL-37EX series TV.

LCD Panel Removal (KDL-37EX)

Detailed steps for safely removing the LCD panel from KDL-37EX models.

HMS3 Board and Frenel Lens Removal (KDL-37EX)

Procedure for removing the HMS3 board and Frenel lens on KDL-37EX models.

HLR2 Board Removal (KDL-37EX)

Steps to remove the HLR2 board from the KDL-37EX series TV.

HEM2 Board and Bezel Assembly Removal (KDL-37EX)

Guide for removing the HEM2 board and bezel assembly for KDL-37EX models.

KDL-40EX Series Disassembly

Step-by-step guide for disassembling KDL-40EX series TV models.

Stand Block, Head Stand, Neck and Base Stand Assembly (KDL-40EX)

Instructions for removing and assembling stand components for KDL-40EX models.

Rear Cover and AC Cover Removal (KDL-40EX)

Procedure for removing the rear and AC covers for KDL-40EX models.

Switch Unit and Speaker Removal (KDL-40EX)

Instructions for removing the switch unit and speaker for KDL-40EX models.

Harness Removal (KDL-40EX)

Guide for disconnecting and removing the internal harness cables for KDL-40EX models.

G4B Board Removal (KDL-40EX)

Steps to remove the G4B board from the KDL-40EX series TV.

LD Board Removal (KDL-40EX)

Procedure for removing the LD board from the KDL-40EX series TV.

Wireless LAN Card Removal (KDL-40EX specific models)

Steps for removing the wireless LAN card from specific KDL-40EX models.

Antenna and WiFi Holder (V) Removal (KDL-40EX)

Instructions for removing the antenna and vertical WiFi holder for KDL-40EX models.

Antenna and WiFi Holder (H) Removal (KDL-40EX)

Instructions for removing the antenna and horizontal WiFi holder for KDL-40EX models.

Side Bracket and BATV Board Removal (KDL-40EX)

Procedure for removing the side bracket and BATV board for KDL-40EX models.

Panel Bracket Removal (KDL-40EX)

Guide for removing panel brackets from the KDL-40EX series TV.

LCD Panel Removal (KDL-40EX)

Detailed steps for safely removing the LCD panel from KDL-40EX models.

HMS3 Board and Frenel Lens Removal (KDL-40EX)

Procedure for removing the HMS3 board and Frenel lens on KDL-40EX models.

HLR2 Board Removal (KDL-40EX)

Steps to remove the HLR2 board from the KDL-40EX series TV.

HEM2 Board and Bezel Assembly Removal (KDL-40EX)

Guide for removing the HEM2 board and bezel assembly for KDL-40EX models.

KDL-46EX Series Disassembly

Step-by-step guide for disassembling KDL-46EX series TV models.

Stand Block, Head Stand, Neck and Base Stand Assembly (KDL-46EX)

Instructions for removing and assembling stand components for KDL-46EX models.

Rear Cover and AC Cover Removal (KDL-46EX)

Procedure for removing the rear and AC covers for KDL-46EX models.

Switch Unit Removal (KDL-46EX)

Instructions for removing the switch unit for KDL-46EX models.

Speaker Removal (KDL-46EX)

Procedure for removing the speaker assembly from KDL-46EX models.

Harness Removal (KDL-46EX)

Guide for disconnecting and removing the internal harness cables for KDL-46EX models.

G5D Board Removal (KDL-46EX)

Steps to remove the G5D board from the KDL-46EX series TV.

LD Board Removal (KDL-46EX)

Procedure for removing the LD board from the KDL-46EX series TV.

Wireless LAN Card Removal (KDL-46EX specific models)

Steps for removing the wireless LAN card from specific KDL-46EX models.

Antenna and WiFi Holder (V) Removal (KDL-46EX)

Instructions for removing the antenna and vertical WiFi holder for KDL-46EX models.

Antenna and WiFi Holder (H) Removal (KDL-46EX)

Instructions for removing the antenna and horizontal WiFi holder for KDL-46EX models.

Side Bracket and BATV Board Removal (KDL-46EX)

Procedure for removing the side bracket and BATV board for KDL-46EX models.

Panel Bracket Removal (KDL-46EX)

Guide for removing panel brackets from the KDL-46EX series TV.

LCD Panel Removal (KDL-46EX)

Detailed steps for safely removing the LCD panel from KDL-46EX models.

HMS3 Board and Frenel Lens Removal (KDL-46EX)

Procedure for removing the HMS3 board and Frenel lens on KDL-46EX models.

HLR2 Board Removal (KDL-46EX)

Steps to remove the HLR2 board from the KDL-46EX series TV.

HEM2 Board and Bezel Assembly Removal (KDL-46EX)

Guide for removing the HEM2 board and bezel assembly for KDL-46EX models.

KDL-55EX Series Disassembly

Step-by-step guide for disassembling KDL-55EX series TV models.

Stand Block, Head Stand, Neck and Base Stand Assembly (KDL-55EX)

Instructions for removing and assembling stand components for KDL-55EX models.

Rear Cover and AC Cover Removal (KDL-55EX)

Procedure for removing the rear and AC covers for KDL-55EX models.

Switch Unit and Speaker Removal (KDL-55EX)

Instructions for removing the switch unit and speaker for KDL-55EX models.

Harness-1 Removal (KDL-55EX)

Guide for disconnecting and removing the first set of harness cables for KDL-55EX models.

Harness-2 Removal (KDL-55EX)

Guide for disconnecting and removing the second set of harness cables for KDL-55EX models.

G8A Board Removal (KDL-55EX)

Steps to remove the G8A board from the KDL-55EX series TV.

G6A Board Removal (KDL-55EX)

Steps to remove the G6A board from the KDL-55EX series TV.

LD Board Removal (KDL-55EX)

Procedure for removing the LD board from the KDL-55EX series TV.

Wireless LAN Card Removal (KDL-55EX specific models)

Steps for removing the wireless LAN card from specific KDL-55EX models.

Antenna and WiFi Holder (H) Removal - 1 (KDL-55EX)

First set of instructions for removing antenna and WiFi holder (H) for KDL-55EX.

Antenna and WiFi Holder (H) Removal - 2 (KDL-55EX)

Second set of instructions for removing antenna and WiFi holder (H) for KDL-55EX.

Side Bracket and BATV Board Removal (KDL-55EX)

Procedure for removing the side bracket and BATV board for KDL-55EX models.

Panel Bracket (M) Removal - 1 (KDL-55EX)

First part of instructions for removing panel brackets (M) for KDL-55EX models.

Panel Bracket (M) Removal - 2 (KDL-55EX)

Second part of instructions for removing panel brackets (M) for KDL-55EX models.

LCD Panel Removal (KDL-55EX)

Detailed steps for safely removing the LCD panel from KDL-55EX models.

HMS3 Board and Frenel Lens Removal (KDL-55EX)

Procedure for removing the HMS3 board and Frenel lens on KDL-55EX models.

HLR2 Board Removal (KDL-55EX)

Steps to remove the HLR2 board from the KDL-55EX series TV.

HEM2 Board and Bezel Assembly Removal (KDL-55EX)

Guide for removing the HEM2 board and bezel assembly for KDL-55EX models.

Section 2: Adjustment

How to Enter Service Mode

Step-by-step guide on accessing the service mode using the remote control.

Remote Commander Usage in Service Mode

Details on using remote control functions within the service mode for adjustments.

White Balance Adjustment

Restore White Balance / Gamma Adj-Data to B Board

VCOM Adjustment

Save Changing Data

Change Data

Digital Service Mode Data Change (General)

Procedures for changing data in Digital service mode, excluding specific categories.

Digital Service Mode Data Change (DIG_SRV_MODE)

Specific steps for changing data within the DIG_SRV_MODE category.

Digital Service Mode Data Write (MODEL Category)

Procedure for writing data to the MODEL category in Digital service mode, especially after B board replacement.

Set to Shipping Condition

Change the Emitter Output Level

HDD Rec Setting

Key Copy Function

Procedure for copying HDD recording keys within the digital service mode.

HDD Re-Register Function

Steps to re-register the HDD for recording functions in the service mode.

Section 3: Trouble Shooting

3-1. Triage Chart

Diagnostic chart to identify potential faulty boards based on symptoms and error codes.

Trouble Flow Chart

A step-by-step flowchart to diagnose and resolve common TV issues.

Troubleshooting No Power Issues

Diagnostic steps for when the TV does not turn on or display power.

Troubleshooting Standby LED Blinking Errors

Guide to diagnose issues based on the standby LED blinking 2 times (Main Power Error).

Troubleshooting Standby LED Blink: 3 Blinks

Diagnosis for issues indicated by the standby LED blinking 3 times (DC Alert, Audio, Comms).

Troubleshooting Standby LED Blink: 4 Blinks

Diagnosis for issues indicated by the standby LED blinking 4 times (Balancer Error).

Troubleshooting Standby LED Blink: 5 Blinks

Diagnosis for issues indicated by the standby LED blinking 5 times (T-con Error).

Troubleshooting Standby LED Blink: 6 Blinks

Diagnosis for issues indicated by the standby LED blinking 6 times (Backlight Error).

Troubleshooting Standby LED Blink: 7 & 8 Blinks

Diagnosis for 7 (Temperature Error) and 8 (Software Error) standby LED blinks.

Troubleshooting Standby LED Blink: 10 Blinks

Diagnosis for issues indicated by the standby LED blinking 10 times (Emitter Error).

Troubleshooting No Picture Issues

Diagnostic steps for resolving scenarios where the TV displays no picture.

Troubleshooting No Sound Issues

Diagnostic steps for resolving scenarios where the TV produces no sound.

TV Commander Buttons Malfunction

Troubleshooting steps for issues with the TV's physical buttons and remote commander.

IR Remote Commander Malfunction

Diagnostic steps for when the IR remote commander is not functioning correctly.

Network Malfunction: Wired Connection Issues

Steps to diagnose and resolve problems with wired network connectivity.

Network Malfunction: Wireless Connection Issues

Troubleshooting for USB and internal wireless network connectivity problems.

3D Function Malfunction

Diagnostic steps for issues related to the 3D display and glasses functionality.

Skype Function Malfunction Troubleshooting

Comprehensive guide to diagnose and resolve Skype application issues on the TV.

HDD Recording Malfunction

Diagnostic steps for resolving issues with the HDD recording feature.

Section 4: Diagrams

Block Diagram

A high-level overview of the TV's internal system architecture and component connections.

Connector Diagrams by Model Series

Detailed pinout and connection information for various connector types across model series.

Circuit Board Locations by Model Series

Visual guide showing the placement of main circuit boards for different KDL-EX720 series models.

Section 5: Exploded Views

KDL-32EX Series Chassis - Part 1

Exploded view and parts list for the main chassis components of KDL-32EX models.

KDL-32EX Series Chassis - Part 2

Exploded view and parts list for secondary chassis components of KDL-32EX models.

KDL-37EX Series Chassis - Part 1

Exploded view and parts list for the main chassis components of KDL-37EX models.

KDL-37EX Series Chassis - Part 2

Exploded view and parts list for secondary chassis components of KDL-37EX models.

KDL-40EX Series Chassis - Part 1

Exploded view and parts list for the main chassis components of KDL-40EX models.

KDL-40EX Series Chassis - Part 2

Exploded view and parts list for secondary chassis components of KDL-40EX models.

KDL-46EX Series Chassis - Part 1

Exploded view and parts list for the main chassis components of KDL-46EX models.

KDL-46EX Series Chassis - Part 2

Exploded view and parts list for secondary chassis components of KDL-46EX models.

KDL-55EX Series Chassis - Part 1

Exploded view and parts list for the main chassis components of KDL-55EX models.

KDL-55EX Series Chassis - Part 2

Exploded view and parts list for secondary chassis components of KDL-55EX models.

5-6. Other Parts

Miscellaneous parts including cables, connectors, and sheets for various models.

Common Parts

List of common parts such as clamps, labels, and screw bags used across models.

Accessories

List of included accessories like manuals, remote controls, and tools.

Appendix-1: Rear Cover Procedures

Rear Cover Removal Procedure (32-inch Models)

Step-by-step guide for removing the rear cover from 32-inch KDL-EX720 series TVs.

Rear Cover Removal Procedure (37-inch Models)

Step-by-step guide for removing the rear cover from 37-inch KDL-EX720 series TVs.

Rear Cover Removal Procedure (40-inch Models)

Step-by-step guide for removing the rear cover from 40-inch KDL-EX720 series TVs.

Rear Cover Removal Procedure (46-inch Models)

Step-by-step guide for removing the rear cover from 46-inch KDL-EX720 series TVs.

Rear Cover Assembly Procedure (32-inch Models)

Step-by-step guide for assembling the rear cover onto 32-inch KDL-EX720 series TVs.

Rear Cover Assembly Procedure (37/40/46-inch Models)

Step-by-step guide for assembling the rear cover onto 37/40/46-inch KDL-EX720 series TVs.

Appendix-2: LCD Panel and Bezel Procedures

LCD Panel Removal from Bezel

Procedure for removing the LCD panel from the TV bezel assembly.

Exchanging Double Sided Tape

Instructions for replacing the double-sided tape used for panel and bezel adhesion.

Mounting the Panel onto the Bezel

Steps for correctly mounting the LCD panel onto the bezel assembly.

Appendix-3: Sharp Edge Caution

Rear Cover Sharp Edge Handling (55-inch Models)

Cautionary guide highlighting safe areas for gripping the rear cover on 55-inch models.

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