Protection - Sony KDL-26S3000 Training Manual

Protection

The protect circuits are described in detail in Chapter 1 of this manual.
Table 2-1 lists the protect events that could possibly occur and suggested
locations for their causes. Troubleshooting flowcharts are also located later
in this chapter to assist the technician in isolating the cause of a protect
event. Although the self-diagnostics feature is helpful in troubleshooting
a unit, they are not 100% reliable and may be caused by more than 1
component.
CTV-41
# OF RED LED
EVENT
BLINKS
2 REG 12V FAILURE
2.5V FAILURE TO
3 TRIDENT IC
4 D 1.OV FAILURE
5 PANEL 12V
6 INVERTER ERROR
7 TEMPERATURE ERROR
8 SPEAKER PROTECT
9 FAN ERROR
MAIN MICRO COM
10 ERROR
11 TRIDENT IC FAILURE
12 BU1 TO BH COM ERROR
13 BALANCER ERROR
NOTE: Whenever the unit shuts down due to a protect event the
remote commander will not function. In previous Sony chassis
designs the remote could be used to cycle the unit back on. The unit
would shut down again, of course, if the problem still existed. In the
WAX3 chassis the power must be cycled by using the manual power
button.
POSSIBLE CAUSE
POWER SUPPLY BOARD
BU1 BOARD
BU1 BOARD
BU1 BOARD
INVERTER (26/32")
D1, D2 BOARDS (40/46")
BU1 BOARD (S MODELS)
BH BOARD (D/XBR MODELS)
BU1 BOARD
NOT USED
BU1 BOARD
BU1 BOARD
BU1 BOARD OR BH
BOARD
LCD PANEL
TABLE 2-2
SELF-DIAGNOSTICS TABLE
Chapter 2 - Service and Troubleshooting
NOTES
PAGE 1 OF DIAGNOSTICS
PAGE 1 OF DIAGNOSTICS
PAGE 1 OF DIAGNOSTICS
BU1 TO PANEL TCON 12V
LISTED AS "BACK_LIGHT" IN
DIAGNOSTICS PAGE 1
PAGE 2 OF DIAGNOSTICS
PAGE 2 OF DIAGNOSTICS
NOT USED BUT APPEARS IN
PAGE 2 OF DIAGNOSTICS
PAGE 2 OF DIAGNOSTICS
PAGE 2 OF DIAGNOSTICS
PAGE 2 OF DIAGNOSTICS
NOT USED IN 26/32" MODELS
PAGE 1 OF DIAGNOSTICS
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