Sharp MX-M623U / MX-M753U (serv.man56) Service Manual / Technical Bulletin ▷ View online
Sharp Electronics (UK) Ltd., Document Systems Support
Ref: ARE 1048
CHANGE’S OF MFP UNIT, ETC. FOR PROVUCTIVITY
IMPROVEMENT
1. Model Name:
MX-M623U/M753U (Except for China/Taiwan)
2. Description:
In order to improve the productivity, ASIC and sockets mounted on MFP unit have been
eliminated or MFCP program ROM1 and 2 have been changed, and so on. Just for MX-
M753U, the DRR2 memory mounted on MFP unit has been changed from the “512MB”
one to the “1GB” one.
eliminated or MFCP program ROM1 and 2 have been changed, and so on. Just for MX-
M753U, the DRR2 memory mounted on MFP unit has been changed from the “512MB”
one to the “1GB” one.
When replacing the old type of MFP unit with the modified one, also replace MFCP
program ROM1 and 2 with the modified ones or upgrade the version of ICU-ROM to
“0300d3” or higher before use. (Refer to T/R No.ARE-1047.)
program ROM1 and 2 with the modified ones or upgrade the version of ICU-ROM to
“0300d3” or higher before use. (Refer to T/R No.ARE-1047.)
In case of MX-M753N/M753U, when replacing the old type of MFP unit with the modified
one, note that the DRR2 “512MB” memory needs to be replaced with the “1GB” one first.
one, note that the DRR2 “512MB” memory needs to be replaced with the “1GB” one first.
Please note that the before change parts can be used as it is supplied as a service parts.
MX-M623U
MFPC program ROM 1,2
Before change
After change
MFP unit before change
OK
OK
MFP unit after change
NG
OK
*MX-M753U
MFPC program ROM 1,2
DRR2 memory
Before change
After change
512MB
1GB
MFP unit before change
OK
OK
OK
OK
MFP unit after change
NG
OK
NG
OK
*MX-M623U/M753U
ICU-ROM version
MFP unit before change
MFP unit after change
“0300d3” or higher
OK
OK
“0300d3” or lower
OK
NG
TECHNICAL BULLETIN
Date:
21
st
October 2011
Model:
MX-M623U/M753U
Ref.:
ARE 1048
Colour:
White
Page:
1 of 2
Sharp Electronics (UK) Ltd., Document Systems Support
*MFP unit
Before change
After change
3. Action:
- MX-M623U: From June 2011 production
- MX-M753U: From July 2011 production
ASIC has been eliminated after change.
Sockets have been eliminated after change.
Just for MX-M753N/753U, the DRR2 “512MB”
memory has been changed to the “1GB” one.
Sharp Electronics (UK) Ltd., Document Systems Support
4. Parts Action:
Ref.
No.
Model
name
Version P/G No.
Current parts
New parts
Price
rank
Q'ty
Parts name
Effective
time
Inter-
change
-
ability
Parts code
Parts code
1
MX-M623N
Other
than
S.
Africa &
Brazil
70-30
CPLTM7945DS51
CPLTM7945DS61
CQ
1
MFP unit
2011/6
5
70-40
RH-IX0054FCPZ
-
-
-
DDR2 memory (256GB)
70-41
VHI29LM1M001F
VHI29LM1M077F
BA
1
MFPC Program ROM 1
70-42
VHI29LM1M002F
VHI29LM1M078F
MFPC Program ROM 2
S.
Africa &
Brazil
70-30
CPLTM7945DS57
CPLTM7945DS67
CQ
1
MFP unit
5
70-40
RH-IX0054FCPZ
-
-
-
DDR2 memory (256GB)
70-41
VHI29LM1M001F
VHI29LM1M077F
BA
1
MFPC Program ROM 1
70-42
VHI29LM1M002F
VHI29LM1M078F
MFPC Program ROM 2
MX-M623U
Other
than
S.
Africa &
Brazil
70-30
CPLTM7945DS52
CPLTM7945DS62
CQ
1
MFP unit
5
70-40
RH-IX0054FCPZ
-
-
-
DDR2 memory (256GB)
70-41
VHI29LM1M001F
VHI29LM1M077F
BA
1
MFPC Program ROM 1
70-42
VHI29LM1M002F
VHI29LM1M078F
MFPC Program ROM 2
S.
Africa &
Brazil
70-30
CPLTM7945DS58
CPLTM7945DS68
CQ
1
MFP unit
5
70-40
RH-IX0054FCPZ
-
-
-
DDR2 memory (256GB)
70-41
VHI29LM1M001F
VHI29LM1M077F
BA
1
MFPC Program ROM 1
70-42
VHI29LM1M002F
VHI29LM1M078F
MFPC Program ROM 2
MX-M753N
Other
than
S.
Africa &
Brazil
70-30
CPLTM7945DS53
CPLTM7945DS63
CQ
1
MFP unit
2011/7
5
70-38
RH-IX0059FCPZ
Q'ty changed
from ”1” to “2”
CA
2
DDR2 memory (1GB)
70-39
RH-IX0055FCPZ
-
-
-
DDR2 memory (512GB)
70-40
RH-IX0054FCPZ
-
-
-
DDR2 memory (256GB)
70-41
VHI29LM1M001F
VHI29LM1M085F
BA
1
MFPC Program ROM 1
70-42
VHI29LM1M002F
VHI29LM1M086F
MFPC Program ROM 2
S.
Africa &
Brazil
70-30
CPLTM7945DS59
CPLTM7945DS69
CQ
1
MFP unit
5
70-38
RH-IX0059FCPZ
Q'ty changed
from ”1” to “2”
CA
2
DDR2 memory(1GB)
70-39
RH-IX0055FCPZ
-
-
-
DDR2 memory (512GB)
70-40
RH-IX0054FCPZ
-
-
-
DDR2 memory (256GB)
70-41
VHI29LM1M001F
VHI29LM1M085F
BA
1
MFPC Program ROM 1
70-42
VHI29LM1M002F
VHI29LM1M086F
MFPC Program ROM 2
MX-M753U
Other
than
S.
Africa &
Brazil
70-30
CPLTM7945DS54
CPLTM7945DS64
CQ
1
MFP unit
5
70-38
RH-IX0059FCPZ
Q'ty changed
from ”1” to “2”
CA
2
DDR2 memory(1GB)
70-39
RH-IX0055FCPZ
-
-
-
DDR2 memory(512GB)
70-40
RH-IX0054FCPZ
-
-
-
DDR2 memory(256GB)
70-41
VHI29LM1M001F
VHI29LM1M085F
BA
1
MFPC Program ROM 1
70-42
VHI29LM1M002F
VHI29LM1M086F
MFPC Program ROM 2
S.
Africa &
Brazil
70-30
CPLTM7945DS60
CPLTM7945DS70
CQ
1
MFP unit
5
70-38
RH-IX0059FCPZ
Q'ty changed
from ”1” to “2”
CA
2
DDR2 memory(1GB)
70-39
RH-IX0055FCPZ
-
-
-
DDR2 memory(512GB)
70-40
RH-IX0054FCPZ
-
-
-
DDR2 memory(256GB)
70-41
VHI29LM1M001F
VHI29LM1M085F
BA
1
MFPC Program ROM 1
70-42
VHI29LM1M002F
VHI29LM1M086F
MFPC Program ROM 2
<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.
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