To Next PageTo Next Page
Need help?Do you have a question about the Sony KDL-22EX420 and is the answer not in the manual?
Precautions for safely handling the sensitive LCD panel during repair.
Procedures for performing safety checks before releasing the TV to the customer.
Method for measuring AC leakage from metal parts to earth ground to ensure safety.
Instructions on how to properly identify and verify an earth ground connection.
General warnings and cautions for service personnel regarding safety and proper procedures.
Details about the use of lead-free solder and its identification on circuit boards.
Notices and instructions for safely removing and handling the LCD panel and bezel assembly.
Identification and function of the TV's control buttons and indicators.
Description of LED indicator types, their colors, and meaning during operation.
Table detailing LED status, blinking patterns, and corresponding descriptions.
Explanation of LED blinking patterns and their relation to safety shutdown causes.
Table mapping blinking times to specific errors and their countermeasures.
A chart to help diagnose problems based on symptoms and LED blinking sequences.
Troubleshooting flowchart for issues related to the TV not powering on or having power issues.
Guides through troubleshooting common issues indicated by standby LED blinking patterns.
Troubleshooting steps for scenarios with no picture or no sound.
Troubleshooting for remote control and network connectivity malfunctions.
Guides for diagnosing issues with Camera, 3D, HDD-Rec, and Skype functionalities.
Detailed reference charts showing component locations for specific troubleshooting steps.
Instructions on how to enter TV's self-diagnostic and service modes for adjustments.
Procedure for modifying settings in Chassis, VPC, and Digital service modes.
Steps for adjusting white balance, gamma data, and VCOM test patterns.
Instructions for resetting to shipping condition and understanding remote functions.
An index listing various service control functions within different modes.
Overall block diagrams illustrating the TV's internal system architecture.
Step-by-step guides for routing wires and connecting components during assembly.
Detailed diagrams showing pin assignments for various TV connectors.
Visual guides showing the physical placement of major circuit boards within the TV.
Detailed exploded views and disassembly steps for KDL-22EX420 and 22EX423 models.
Detailed exploded views and disassembly steps for KDL-26EX420 and 26EX423 models.
Detailed exploded views and disassembly steps for KDL-32EX420, 32EX520, 32EX523 models.
Detailed exploded views and disassembly steps for KDL-40EX520 and 40EX523 models.
Detailed exploded views and disassembly steps for KDL-46EX520 and 46EX523 models.
A comprehensive list of other parts, accessories, and connectors used in the models.
Information regarding new model additions and related details.
General
