ER-A750 (serv.man20). A750-006 SSP for Change to Food Cost Calculation Diagnostic Program - Sharp EPOS Technical Bulletin (repair manual). Page 3

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3-3) So that the production ROM reflects the changes mentioned earlier as well as 
the information from Technical Bulletin A750-004, it has been 
upgraded from the C version to the D version. Because of this the following 
changes have been made.
1) We have changed the service ROM used for loading programs to the flash ROM.
(Before change)
(After change)
VHI27801RAB1C
VHI27801RAB1D
(8Mbits EP-ROM)
(8Mbits EP-ROM)
2) We have changed the service FD
(Before change)
(After change)
UKOG-6726RCZC
UKOG-6726RCZD
(2HD FD)
(2HD FD)
For both 1) and 2), the new version can be used in place of the old version, 
however, the old version cannot be used in place of the new version.
02FD data uploaded to the B version cannot be used with the D version.
02FD data uploaded to the C version can be used with the D version.
4.Action:
1) For the field
Use the before mentioned SSP as the main countermeasure for problems that occur.
2) For production
From September, 1997, flash ROM programs will be included in the D version.
5.Parts update:
Ref.
No.
Model
name
Version
P/G No.
Current parts
New parts
Parts name
Effec-
tive
time
Inter-
change-
ability
Note
Parts code
Parts code
Price 
rank
1
ER-A750
V ver.
VHI27801RAB1C
VHI27801RAB1D
BS
EP-ROM
’97/9
3
2
UKOG-6726RCZC
UKOG-6726RCZD
AP
FD (2HD)
<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.
6.Other:
Refer to accompanying SSP Input Procedures manual.
3/17
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