Sony KDF-E50A10 - 1 Self Diagnosis Function

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KDF-E42A10/E50A10
K RM-YD003 RM-YD003
SECTION 1
SELF DIAGNOSIS FUNCTION
1. Summary of Self-Diagnosis Function
-This device includes a self-diagnosis function.
-Incaseofabnormalities, 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.
-Ifthe 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.
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 lowe
r
blink count blinks first.
-The screen display displays the results regarding all the diagnosis items listed below.
Thedisplay "0" means that no malfunctions occurred.
Defected symptoms
La
Temp error
mp cover error 3 times
2 times
-L
- Set temperture is high.
- Temp sensor connector
is not attached securely.
(CN7020 on HB board,
CN7180 on S2 board)
-Lamp is not set securely.
amp cover is not
attached securely.
Diagnosis Item
Numb er of times
POWER/STANDBY
indicator blinks
Probable Cause
Location
Lamp driver error 5 times
-Lampdriver is faulty. - No picture/No sound
Low B error 6 times
- B_12V is not
supplie
(GT board)
d.
-Nopicture/No sound
-Lampfor the light
source burns out.
-Nopicture/No sound
-Nopicture/No sound
- Short-circuit of Audio power
supply line.
-Blow out of fuse.
(PS3001 on K board)
-IC failure.
(IC3005 on K board)
D-
ATSC OVP
OVP error 8
10 times
times
-B -12V is over voltage.
(B board)
-Q_10.5V is over voltage.
(GT board)
-Nopicture/No sound
Fanstopped 4 times
-Fan 1-4
power is not
supplied. (AGU board)
-F
-Fan caught wires or
harnesses.
an connector is not
attached securely.
-Nopicture/No sound
Lamp error LAMP-LED flashes - No picture/No sound
Audio error 7 times
-Nopicture/No sound
-Nopicture/No sound