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Sony Model KZ-32TS1U // KZ-41TS1U TV Diagnostic Guide
Chapter 2 - Self-Diagnostics
Standby/Sleep Light
The front panel Standby LED blinks to indicate a fault. Refer to Figure 2-1. If the TV does not start up, the
LED continually blinks to indicate a problem.
Standby/sleep
light
TV
Figure 2-1
If the TV starts and shuts down, the LED will repeatedly blink to indicate the reason for shutdown or A/V muting.
Table 2-1 shows the boards that can cause the Standby LED to blink continuously and Table 2-2 shows the
boards that cause shutdown.
Table 2–1 - Causes of Continuously Blinking LED – No TV A/V (black screen)
Cause
Suspect Board
EEPROM ID check error
B board
EEPROM read /write error
B board
Color Decoder IC error
B board
Panel will not initialize (start)
Plasma panel
Low B+ at start up
Plasma panel, power supply board
Table 2-2 - Cause of Standby LED Blinking in a Pattern - TV Shutdown
Times Standby
LED blinks
Cause
Suspected board
2 times
Plasma panel error
Plasma panel
3 times
Internal TV temperature at critical
Q board, Fan, or possibly B board
4 times
Digital 5Vdc output voltage excessive or
too low.
Power Supply Output CN1/pin 9 / 10
B board is the load - CN101.
5 times
Digital 3.3Vdc output voltage excessive or
too low.
Power Supply Output CN1/pin 5 / 6
B board is the load - CN101.
6 times
Analog 6Vdc output voltage excessive or
too low.
Power Supply Output CN1/pin 13 / 14
B board is the load - CN101.
