Sony KF-WE42A1, Руководство по обслуживанию

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KF-WE42A1/WE50A1/WS60A1
RM-1022 RM-1022 RM-1022
1. Summary of Self-Diagnosis Function
• This device has a self-diagnosis function.
• In case of failure, the POWER/STANDBY or LAMP LED blinks or lights to assist service.
It is possible to specify the cause of the failure by the number of blink or the LED itself.
The following list shows the interpretation of those LED related information.
• For the failure hard to be reproduced, its record is stored at the internal NVM.
The record can be displayed with the remote commander to specify the cause of the failure.
2. Diagnosis and probable cause of Failure
• In case of failure, the POWER/STANDBY or LAMP LED blinks or lights to indicate the following diagnosis.
If two or more failures occurred at one time, the one occurred first will be indicated.
If they occurred simultaneously, the one corresponds to the fewer times of blink will be indicated.
• All the failure records listed below can be displayed on the screen.
“ 0 ” will be displayed when there is no failure record.
SECTION 1
SELF DIAGNOSIS FUNCTION
Diagnosis Number of blink of Probable Cause Problem
STANDBY or LAMP
LED
Lamp cover error 3 times
- Lamp cover is not - No picture/No sound
fastened securely.
- Fan 1-4 Power is no
supplied. (G2 board)
Fan error 4 times - Fan connector is not seated - No picture/No sound
securely.
- Fan caught wires or
harnesses.
- Internal temperature is too
high.
Temp error 4 times - IIC-E line - No picture/No sound
connector (WE: H3 board,
WF/XS : H4) is not seated
properly.
Lamp driver error 5 times - Lamp driver defect - No picture/No sound
Low B error 6 times
- No “DD 6V” output (G1) - No picture/No sound
- ”PROT” is high (F)
-Short-circuit of Audio
power supply line (KD, G1)
- Blowout of a fuse
Audio error 7 times (F4702, F4703, F4704 on KD) - No picture/No sound
- IC failure
(IC4703, IC4708, IC4710 on
D-OVP error 8 times - Overvoltage of +3.3V or - No picture/No sound
+2.5V (A, B board)
Lamp error LAMP-LED is ON. - Lamp is dead - No picture/No sound