Self-Diagnostics - Sony KZ-32TS1U Training Manual

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.
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
EEPROM ID check error
EEPROM read /write error
Color Decoder IC error
Panel will not initialize (start)
Low B+ at start up
Table 2-2 - Cause of Standby LED Blinking in a Pattern - TV Shutdown
Times Standby
LED blinks
2 times Plasma panel error
3 times Internal TV temperature at critical
4 times Digital 5Vdc output voltage excessive or
too low.
5 times Digital 3.3Vdc output voltage excessive or
too low.
6 times Analog 6Vdc output voltage excessive or
too low.
Sony Model KZ-32TS1U // KZ-41TS1U TV Diagnostic Guide
Chapter 2 - Self-Diagnostics
Standby/sleep
light
B board
B board
B board
Plasma panel
Plasma panel, power supply board
Cause
TV
Figure 2-1
Suspect Board
Plasma panel
Q board, Fan, or possibly B board
Power Supply Output CN1/pin 9 / 10
B board is the load - CN101.
Power Supply Output CN1/pin 5 / 6
B board is the load - CN101.
Power Supply Output CN1/pin 13 / 14
B board is the load - CN101.
3
Suspected board