Sony KDF-E55A20 Service Manual page 9

Display of POWER/STANDBY or LAMP LED Flash Count
- Oneflash is not usedfor self-diagnosis .
- Example
Diagnosis
Lamp cover
Fan
Releasing the POWER/STANDBY LED Flash
Unplug the power cord from the outlet to temporarily stop the POWER/STANDBY lamp from fl ashing.
Self-Diagnosis Screen Display
For failures that are diffi cult 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 Screen Test
In standby mode, press the buttons on the Remote Commander sequentially, in rapid succession, as shown below:
1. DISPLAY
Channel 5
Self-Diagnostic Screen Display
SELFCHECK
1 : LAMP ERR
3 : LAMP COVER
4 : FAN-E/TEMP-E
5 : LAMP DRIVER
6 : LowB-ERR
7 : Audio-Prot
8 : D-OVP
10 : ATSC_OVP
101 : WDT
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you
have completed the repairs, clear the result display to "0".
Note: The self-diagnostic function will not be able to detect any subsequent faults after completion of the repairs unless the result display is
cleared to "0".
KDF-E55A20/E60A20
Screen
Number of times LED Flash
3 times
4 times
LED ON : 0.3sec
LED OFF : 0.3sec
Sound Volume - POWER
0
0
"1" is displayed when a failure is detected one or more times
1
"0" is displayed when no failure has been detected
0
0
1
0
0
0
Indicators
Projection lamp
LED OFF
3.0sec
KDF-E55A20/E60A20
POWER
LAMP TIMER POWER
9