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When troubleshooting a "Unit Will Not Turn On"problems in previous models the Red Power/Standby LED on the front panel, when illuminated would indicate that at least the standby 5V power was functioning. There is no ted standby LED on either of the two 2005 SXRD models {KDS-R50XBR1 & KDS-R60XBR1}. There fore the only way to visually check if standby 5V circuit is functioning is to press the On/OFF power button and watching for the Green Power/Standby LED on the front panel to begin flashing.
The first decision diamond the flowchart asks the question - Does the Green (Power/Standby) LED begin flashing?, If the answer is 'yes' then know that the standby 5V and TV microprocessor are functioning as the TV microprocessor controls the Green LED.
The next step is to check if the Green Power/Standby LED Glows Steady Green, continuously Flashes, or if the Red Protection LED begins flashing.
If the Green Power/Standby LED glows steady then the power-on sequence was successfully completed, and the Power Supply system and microprocessor communications are working fine. If there is still no video displayed or audio heard then, troubleshooting efforts should be turn to solving a video, audio or lamp section defect.
If Green power/Standby LED flashes continuously, then there is a communication problem between the microprocessors. In most cases it will be a communications problem between the TV microprocessor on the DSU-Board and the ATI microprocessor in the Q-Box module. Confirm that all cables and connectors between the DSU board and the Q-Box module are securely seated and undamaged. If all the connections are good, then the most likely defect suspect is Q-Box module. The fact that the unit successfully completes the Power-On sequence indicates that the TV microprocessor is functioning well
If the Red Power/Standby LED begins to flash, then the 'DE' microprocessor has detected a system failure and has placed the unit in protection mode. The Red power/Standby LED flash sequence (number of flashes between pauses) should be counted and proceed the the indicated protection mode.
Let's go back one step back,and follow the path of the situation when the Green Power/Standby LED does not begin flashing after the unit receive an 'ON' command.
The first step in troubleshooting a no-Green Power/Standby LED symptom is to confirm that the TV securely plugged into an active AC outlet.
Contd:
When troubleshooting a "Unit Will Not Turn On"problems in previous models the Red Power/Standby LED on the front panel, when illuminated would indicate that at least the standby 5V power was functioning. There is no ted standby LED on either of the two 2005 SXRD models {KDS-R50XBR1 & KDS-R60XBR1}. There fore the only way to visually check if standby 5V circuit is functioning is to press the On/OFF power button and watching for the Green Power/Standby LED on the front panel to begin flashing.
The first decision diamond the flowchart asks the question - Does the Green (Power/Standby) LED begin flashing?, If the answer is 'yes' then know that the standby 5V and TV microprocessor are functioning as the TV microprocessor controls the Green LED.
The next step is to check if the Green Power/Standby LED Glows Steady Green, continuously Flashes, or if the Red Protection LED begins flashing.
If the Green Power/Standby LED glows steady then the power-on sequence was successfully completed, and the Power Supply system and microprocessor communications are working fine. If there is still no video displayed or audio heard then, troubleshooting efforts should be turn to solving a video, audio or lamp section defect.
If Green power/Standby LED flashes continuously, then there is a communication problem between the microprocessors. In most cases it will be a communications problem between the TV microprocessor on the DSU-Board and the ATI microprocessor in the Q-Box module. Confirm that all cables and connectors between the DSU board and the Q-Box module are securely seated and undamaged. If all the connections are good, then the most likely defect suspect is Q-Box module. The fact that the unit successfully completes the Power-On sequence indicates that the TV microprocessor is functioning well
If the Red Power/Standby LED begins to flash, then the 'DE' microprocessor has detected a system failure and has placed the unit in protection mode. The Red power/Standby LED flash sequence (number of flashes between pauses) should be counted and proceed the the indicated protection mode.
Let's go back one step back,and follow the path of the situation when the Green Power/Standby LED does not begin flashing after the unit receive an 'ON' command.
The first step in troubleshooting a no-Green Power/Standby LED symptom is to confirm that the TV securely plugged into an active AC outlet.
Contd:
