KDS-60R2000 - Sony TV Service Manual (repair manual). Page 13

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– 1-4 –
KDS-60R2000
RM-GD001
- The results display is not automatically cleared. In case of repairs and after repairs, check
the self-diagnosis screen and be sure to return the results display to "0".
- If the results display is not returned to "0" it will not be possible to judge a new malfunction
after completing repairs.
<Method of Clearing Results Display>
1. Power off (Set to the standby mode)
2.
Channel
Vol
3. Channel
<Method of Ending Self-Diagnosis Screen>
- When ending the self-diagnosis screen completely, turn the power switch OFF on the
remote commander or the main unit.
5. Self-Diagnosis function operation
8
0
DISPLAY
5
-
POWER
2
:
Temp over
When the inside temperature sensed with IC3150, IC3200 and IC2000  
mounted on S1 board, S2 board and C board respectively exceed  
the threshold, DEM (Display Engine u-com) detects it and makes 
turn off the lamp. 
3
:
Lamp cover
When the lamp cover is opened or harness from T board is off, DEM detects it 
and makes turn off the lamp
4
:
FAN error 
When any FAN is stopping or harness is not connected correctly, 
DEM detects it and makes turn off the lamp
5
:
Lamp Driver
When the ballast is not working with high voltage, DEM detects it and makes 
turn  off the lamp
6
:
Power error
When 11V is low, TVM
(TV u-com) detects it and makes turn off the lamp.
7
:
Audio
When DC is appeared by audio amp failure at speaker line, DEM detects it 
and makes turn off the lamp.
8
:
Power-OVP
When the output voltage from 11V is abnormally high, TVM detects 
it and makes turn off the lamp.
9
:
Device error
When the temperature sensor and bus decoder ICs do not return ACK on IIC 
 
bus to DEM, DEM detects it and makes turn off the lamp.
10
:
Digital board error When the voltage of DTAU board is low, TVM detects it and makes turn off
the lamp.
11
:
Digital com error
When it is not possible to communicate between DTAU board and TVM, 
TVM detect it and makes turn off the lamp.
LAMP
:
Lamp
When the lamp is broken, DEM detects it.
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