Read Sony KF-E42A10 / KF-E50A10 (serv.man3) Service Manual online
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KF-E42A10/E50A10
RM-GA004
1. Summary of Self-Diagnosis Function
– This device includes a self-diagnosis function.
– In case of abnormalities, the POWER/STANDBY indicator automatically blinks. It is possible to predict the
– In case of abnormalities, the POWER/STANDBY indicator automatically blinks. It is possible to predict the
abnormality location by the number of blinks. The Instruction Manual describes blinking of the POWER/STANDBY
indicator.
indicator.
– If the symptom is not reproduced sometimes in case of a malfunction, there is recording of whether a malfunction was
generated or not. Operate the remote command to confirm the matter on the screen and to predict the location of the
abnormality.
abnormality.
2. Diagnosis Items and Prediction of Malfunction Location
– When a malfunction occurs the POWER/STANDBY indicator only blinks for one of the following diagnosis items. In
case of two or more malfunctions, the item which first occurred blinks. If the malfunctions occurred simultaneously, the
item with the lower blink count blinks first.
item with the lower blink count blinks first.
– The screen display displays the results regarding all the diagnosis items listed below.
The display "0" means that no malfunctions occurred.
SECTION 1
SELF DIAGNOSTIC FUNCTION
Diagnosis Item
Lamp temp. over
Lamp cover error
Fan stopped
Lamp driver error
Low B error
Lamp error
Number of times
POWER/STANDBY
indicator blimks
2 times
3 times
4 times
5 times
6 times
LAMP-LED flashes
Probable Cause
Location
– Lamp cover is not
attached securely.
– Fan 1, Fan 2, Fan 3, Fan
4 or Fan 5 power is not
supplied.
supplied.
– Fan connector is not
attached securely.
– Lamp driver is fulty.
– B_12V is not supplied.
– Lamp for the light source
burns out.
Defected symptoms
– No picture/No sound
– No picture/No sound
– No picture/No sound
– No picture/No sound
– No picture/No sound
3. Blinking count display of POWER/STANDBY indicator
– Release of POWER/STANDBY indicator blinking
The POWER/STANDBY indicator blinking display is released by removing the plug from the power or leaving for 2
minutes.
minutes.
- One blink is not used for self-diagnosis.
- Example
Diagnosis item
Diagnosis item
LED blinks
Lamp cover
3 times
Fan
4 times
LED ON : 0.3sec
LED OFF : 0.3sec
LED OFF : 0.3sec
LED OFF
3.0sec
POWER
STD/DUO
POWER/STANDBY
STANDBY
POWER
LAMP
TIMER
STD / DUO
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