Sony KDL32EX308, KDL22EX308 manual Troubleshooting, Introduction, Software Updates, CTV-68

Chapter 3 – Troubleshooting

Introduction

Most troubleshooting of this chassis focuses on the 3 major components used:

•The Main Board (BAL)

•Power Supply (G1D or G2LE)

•LCD Panel

This chapter will provide practical troubleshooting procedures based on the various symptoms that will appear when a particular circuit fails to operate properly. Typical failure symptoms will be discussed along with troubleshooting flowcharts for each symptom.

Always remember to log on to the Sony technical support site at http:// www.sony.com/asp to access the latest technical bulletins along with triage charts to quickly identify the most likely part to complete the repair based on the symptom.

Software Updates

The subject of software updates is a very important item to point out at this point. The televisions of today have advanced to the point where they are not simply a television anymore. They are evolving into devices that are designed to integrate with numerous other devices found in the home. Some examples are: Portable audio and video devices, still cameras, home computer networks and accessing the internet to name a few.

Communications with these varying devices requires that the television be compatible with varying communications protocols. Although standards are detailed for each of these protocols, the real world dictates that occasional errors may occur that could prevent devices from operating or communicating properly.

Keeping the software in the television up-to-date is a procedure that is normally handled by the owner of the television. Most customers who own computers and other digital devices are familiar with and are accustomed to updating the firmware and software in their products. If a customer contacts the Sony Customer Support Center and it is deemed to be correctable with a software update, the issue is handled at the customer level.

Software updates can be performed in the following ways:

•Manual Downloads: Software updates can be retrieved from the Sony Support Site at http://esupport.sony.com where they can be downloaded and placed on a USB thumb drive to be loaded into the product. The instructions for downloading the software file vary from chassis to chassis and sometimes from model to model. Read the instructions included with the software file to properly format the USB device, unzip the file (if necessary) and the procedure for loading the software into the television.

•Network Downloads: Internet software updates are becoming more prevalent as more and more models incorporate home network capabilities. This method is the most practical since the television will check for the latest version of software. The models using the AZ1L chassis provide the customer with a choice of turning the automatic software update feature on or off. If set to on, the television will lookup software information while the unit is in standby. If a newer version is available, it will be downloaded and installed without any input from the customer

•Built-in Tuner: OTA or cable sources having the proper station that is transmitting software update data packets. Although the ability to transmit software update is possible in this way, it is the least common and is reserved for particular situations where a critical update is “forced”, thereby updating the unit without any input from the customer.

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