Read Sony KF-50XBR800 / KF-60XBR800 Service Manual online
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KF-50XBR800/60XBR800
K
RM-Y912 RM-Y912
SECTION 1
SELF DIAGNOSIS FUNCTION
3. Blinking count display of STANDBY indicator
1. Summary of Self-Diagnosis Function
• This device includes a self-diagnosis function.
• In case of abnormalities, the STANDBY indicator automatically blinks. It is possible to predict the abnormality location by the number
of blinks. The Instruction Manual describes blinking of the STANDBY 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.
2. Diagnosis Items and Prediction of Malfunction Location
• When a malfunction occurs the 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.
• The screen display displays the results regarding all the diagnosis items listed below. The display “ 0 ” means that no malfunctions
occurred.
Release of STANDBY indicator blinking.
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!
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*
STAND BY
TIMER
LAMP
Detected symptoms
Diagnosis Item
Probable Cause Location
¥ Power cord is not plugged in.
¥ Fuse is burned out (F1601) (G board)
¥ Power does not come on.
¥ No power is supplied to the unit.
¥ AC power supplyis faulty.
Power does not turn on
¥ Lamp cover is not attached securely.
¥ No picture/No sound
Lamp cover error
¥ FAN1 or FAN2 power is not supplied. (A board)
¥ FAN connector is not attached securely.
¥ No picture/No sound
FAN stopped
Lamp driver error
¥ Lamp driver is faulty.
¥ No picture/No sound
¥ +5 V is not supplied. (G board)
¥ No picture/No sound
Low B error
¥ Audio ±15 V line is shorted. (A, G board)
¥ IC1203 or IC1204 is faulty. (A board)
¥ PS1601 or 1602 is opened. (G board)
Audio error
¥ No picture/No sound
Lamp error
¥ Lamp for the light souce burns out.
¥ No picture/No sound
No. of times
STANDBY/STEREO
indicator blinks
0
3 times
4 times
5 times
6 times
9 times
LAMP LED
flashes
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