With all TV sets manufactured after 1993, Sony has included a self fault detection circuit, which will detect fatal faults to the internal circuit. These fault indications will be shown as series of blinking of standby light at TVs front panel.
Normally, when the set is switched ON, the standby light at its front panel will blink once and will go OFF after the set has began to work normally. If any fault is detected when the set is switched ON, the standby light will begin to blink. The number of blinks it gives is an important information about the internal faulty section.
So the number of blink at one time, must be counted. You have to count this number once again after switch the set ON by its main power ON/OFF switch at its front panel, and confirm that the number of blinks occur is correct.
BLINKING CODES
[00] Blink => No error Detected. The set is OK.
[01] Blink => Is reserved for future use.
[02] Blinks => OCP (Over current Protection). Some component/s shorted, consuming more current from power supply section, than specified.
]03] Blinks => OVP (Over voltage Protection). The voltage output from the main power regulator section is more than specified.
[04] Blinks => No Vertical Sync:
[05] Blinks => Power ON IRK error.
[06] Blinks => II2 bus-clock or data lines should be checked for short circuit or low voltage.
[7] Blinks => NVM (No IIc bus acknowledge at power ON.
[8] Blinks => Horizontal Protection.
[9] Blinks => No tuner acknowledge. Tuner section circuit should be troubleshooted.
[10] Blinks => Sound Processing section has the fault.
[11] Blinks => Is reserved for future use.
[12] Blinks => Scan-Rate error.
[13] Blinks => DAC [Digital to Analogue converter] error. Main board should be troubleshooted.
[14] Blinks => Back End error.
[15] Blinks => Dynamic Convergence Error.
[16] Blinks => PIP (Picture In Picture section circuit's fault.
