- No Power: Ayu2/Ayu2L Failure - Sony KDL-32W700B Service Manual
Lcd digital color tv rb2g chassis segment: he-l
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Also See for KDL-32W700B:
- Service manual (48 pages) ,
- Manual (239 pages) ,
- Operating instructions manual (92 pages)
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Troubleshooting
RB2G CHASSIS
W700B/ W800B
2-1-8. No Power– AYU2/AYU2L failure
2-1-8 No Power– AYU2/AYU2L failure
2.1-8 - NO POWER: AYU2/AYU2L FAILURE
AYU2/L Fail Suspected
p
eMMC /
RawNAND erase
Product SW rewrite
Yes
Recover?
No
AYU2/L LOG is
displayed
No
(1) Check DDR &
(1) Check DDR &
eMMc / RawNAND
interface OK?
No
No
Replace Board
Chassis: RB2G, HE-L
Product SW
writing issue
g
Yes
Check DDR
Error message
using CheckSW
Yes
DDR device fail
From the error
Yes
Y
message, we can find
Replace
which device has
failure.
AYU2/L or Board
Move to device
analysis phase.
Check
No
Find Some
eMMC / RawNAND
using CheckSW
using CheckSW
No
eMMC/ RawNAND
data fail
Data fails are
Data fails are
fi d
especially in
environment area.
If this Area has broken,
check soft cannot run
Check error message
Yes
It is unacceptable
Find Some
Error message
No
Yes
Store SW log,
Erase & Replace
Check SW
eMMC/ RawNAND
behaviors.
Erase
Product SW write
eMMC/ RawNAND
If still NG after SW rewrite,
In this case, corrupted
please go to (1) Check
data are written to eMMC/
MMC/RawNAND interface
NAND flash in proper way
NAND flash in proper way.
So, we have to check the
logs of exception or errors.
Erase eMMC/ RawNAND
is a last option. If still NG
after erase, please replace
eMMC/RawNAND
MMC/R
NAND
Chassis: RB2G, HE-L
error?
28
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