RB1G
CHASSIS
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
272
3-1.3 No Power – Ayu2/Ayu2L Failure
Note: For location details, refer to troubleshooting Reference for parts location.
Software was
written successfully
at least one time
Replace Ayu2/Ayu2L
Find Some
Error
message
Replace both
Ayu2/Ayu2L &
RawNAND
RawNAND data fail
No
Ayu2/Ayu2L LOG is
displayed
No
Ayu2/Ayu2L is working,
but specific block fails;
like no picture,
I/O damage, etc
Yes
Yes
Store SW log,
Check SW behaviors.
No
Yes
No
Yes
Ayu2/Ayu2L
power is OK
Yes
Check DDR &
RawNAND
interface
See Ayu2/Ayu2L
replacement flow
No
Check RawNAND
using CheckSW
No
Store Error
message.
If it is unacceptable
errors, it is
RawNAND device
failure
Check DDR
using CheckSW
Find Some
Error
message
Data fails are
especially in
environment area.
If this Area has
broken, check soft
cannot run
DDR device fail
No
Yes
In this case, corrupted
data are written to
NAND flash in proper
way.
So, we have to check
the logs of exception or
errors.
Erase RawNAND is a
last option.
Erase RawNAND
From the error
message, we can
find which device
has failure.
Move to device
analysis phase.
Ayu2/Ayu2L Fail Suspected
Note:
(AYU2Ayu2L) – IC9000
(Brownie)- IC9001
Why is it swap with
original?