Sharp AL-2040 (serv.man17) Service Manual / Technical Bulletin ▷ View online
Sharp Electronics (UK) Ltd., Technical Services Group
"DOWNLOAD MODE" display when turning on the power
1. Model Name
AR-M150/M155/M155X/168D/168S, AL-1556/1566/1651CS/1655CS/1661CS, FO-DC550
2. Symptom
When the power is turned on, "DOWNLOAD MODE" may be displayed, and other
operations may not be enabled.
This is because the flash ROM on the MCU PWB malfunctions due to noise.
3. Description
The manufacturer of the flash ROM on the MCU PWB has been changed to SPANSION
whose flash ROM is insusceptible to noise.
4. Action
Executed from the middle of production in February, 2008(Production in China)
Executed from the middle of production in March, 2008(Production in France)
Current parts
New parts
N
o
Model
name
Version
P/G
No.
Parts code
Parts code
Price
rank
Q'ty
Parts
name
Effec-
tive
time
Inter-
change
-
ability
Not
e
AL-1556
AL-1651CS
AL-1655CS
AL-1655CS
CPWBX0163QS4N CPWBX0163QS2N
CE
AL-1566
CPWBX0163QS3B CPWBX0163QS1B
AL-1661CS
CPWBX0163QS33 CPWBX0163QS13
FO-DC550
11 -4
CPWBX0163QS42 CPWBX0163QS22
AR-M150
ALL
Europe
CPWBX0163QS4K CPWBX0163QS2K
CH
AR-M155 Australia
, New
Zealand
CPWBX0163QS4C CPWBX0163QS2C
AR-M155X
Iran
1
AR-168D
AR-168S
AR-168S
ALL
14 -4
CPWBX0163QS4A CPWBX0163QS2A
CK
1
MCU
PWB
PWB
Mid-
'08/2
(Productio
n in China)
Mid-
'08/3
(Productio
n in
France)
3
<Interchange>
1. Interchangeable.
4. Not Interchangeable.
2. Current type can be used in place of new type.
New type cannot be used in place of current type.
5. Interchangeable if replaced with same types of related
parts in use.
3. Current type cannot be used in place of new type.
New type can be used in place of current type.
6. Others.
Parts marked with "
" is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones
for maintaining the safety and performance of the set.
for maintaining the safety and performance of the set.
TECHNICAL BULLETIN
Date: 21
st
July 2008
Model: AR-M150/155
Ref.: 020
Colour:
Colour:
White
Page:
1 of 1
Sharp Electronics (UK) Ltd., Technical Services Group
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