SONY - KDF-E55A20_KDF-E60A20_SERVICE MODE_LED BLINKING CODES

• One flash is not used for self-diagnosis.

      Releasing the POWER/STANDBY LED Flash:  Unplug the power cord from the outlet to temporarily stop the OWNER/STANDBY lamp from flashing.

      Self diagnosis Screen Display:  For failures that are difficult to reproduce, or accompany occasional power off and/or picture mute, the Self-Diagnosis screen display is useful to specify the cause.

TO BRING UP THE SCREEN TEST

• In standby mode, press the buttons on the Remote Commander sequentially, in rapid succession, as shown below:
• Press {Display => Channel-5 => Sound Volume (-) => Power} buttons in sequence by the remote control.

CLEARING THE SELF-DIAGNOSTIC SCREEN

• The self diagnosis screen display is cleared by turning off the set using the Remote Commander or the power switch.

SELF DIAGNOSIS FUNCTION OPERATION

• 3:  lamp cover => The rib at the back of the lamp cover closes the SW on the T board to ground pin 3 of CN8001. It is monitored by the DE-micro (pin 94 of IC6902) and turns off the lamp when it is opened.
• 4:  Fan => Fan rotation is detected by "FAN-PROT" and the DE-micro (pin 92 of IC6902) turns off the lamp when it is "high".
• 4:  Temp => When the temperature sensor on the H4 board detects high temperature, or IIC-E line connector (CN6022:GI board, CN44:H3board/H4board) is not seated securely, the DE-micro turns off the lamp.
• 5:  Lamp Driver => When the "LAMP-PROT" (pin 95 IC6902) is low, the lamp is not turned on. If the "LAMP-HV- DET" (pin 96 IC6902) is low at the same time, it is classified as no high voltage of the lamp driver.
• 6:  Low B error => When no "SETIIV " is detected, pin 129 of IC3002 is low and it turns off the main power.
• 7:  Audio => When DC voltage is detected at the speaker or woofer outputs, pin 128 of IC3002 is low and it turns off the main power.
• 8:  D-OVP => When over voltage of "+3.3V" or "+2.5V" is detected, pin 126 of IC3002 is low and it turns off the main power.
• 10:  DTL-OVP => When no "Q 5V" is detected, pin 127 of IC3002 is low and it turns off the main power.
• LAMP: Lamp => When the "LAMP-PROT" (pin 95 IC6902) is low, the lamp is not turned on. If the "LAMP-HV-DET" (pin96 IC6902) is high at the same time, it is classified as no lamp or a dead lamp.