ER-A750 (serv.man25). Disused ID Card - Sharp EPOS Technical Bulletin (repair manual)

er-a750 (serv.man25) technical bulletin
Model
ER-A750 (serv.man25)
Pages
5 Few pages! See other manuals at the bottom of the first or last page.
Size
79.9 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
EPOS / Disused ID Card
File
er-a750-sm25.pdf
Date

Read Sharp ER-A750 (serv.man25) Technical Bulletin online

1. DISUSE OF THE LICENSE AGREEMENT CARD (LA CARD)
2. ROM CHANGE
3. CHANGE OF THE CABLE LAYOUT & OF THE PARTS QUANTITY
 [Parts changes]
1. DISUSE OF THE LICENSE AGREEMENT CARD (LA CARD)
1) Model name:
ER-A750 (All)
2) General:
ER-A750, having no contract with Microsoft, does not adopt MS-DOS.
And the enclosed MS-DOS SOFTWARE LICENSE AGREEMENT CARD (LA CARD)
has been disused.
3) Action:
((For production))
From April 1997 production
4) Parts change:
2. ROM CHANGE
1) Model name:
ER-A750 (All)
2) General:
The parts code of the EP-ROM will be changed because the supplier of the EP-ROM
which stores the SRN circuit controlling firmware for the above model will be
changed.
1/5
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
All
3  - 12
TCADH6805BHZZ
Card
Apr. ’97
6
Q’ty: 
1
0
<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.
Date :
Model :
Ref :
Colour
Code :
1st December 1997
ERA750
A750-001
White
ELECTRONIC CASH REGISTER
TECHNICAL BULLETIN
Sharp Electronics (UK) Ltd, Technical Support Group
3) Description:
(1) The memory capacity will be changed in compliance with the changed supplier of
the EP-ROM.  And the parts code of the ROM will be changed.
(2) Interchangeability
The EP-ROM has the interchangeability and the program has it, too.
(the program remains unchanged.)
4) Action:
((For production))
From June 1997 production
5) Parts change:
3. CHANGE OF THE CABLE LAYOUT & OF THE PARTS QUANTITY
1) Model name:
ER-A750
2) General:
(1) There is a fear that the core to be mounted onto the rear display cable may come
into contact with the main PWB by uneven assembling work, so the fixing position
and the fixing way of the core will be changed. (Refer to the attached sheet p.3/5.)
Applicable destinations:
LHLDW6820BHZZ (QUICK CLAMP - BIG)    2
→→
3 Changed
LBNDJ2003SCZZ (NYLON BAND)
 10
→→
9 Changed
(2) Two of the nylon bands bundling the rear display cables have been disused.
(Refer to the attached sheet p.4/5).
LBNDJ2003SCZZ (NYLON BAND)
   9
→→
7 Changed
(3) Since there is an opportunity that the inverter cables may come into contact with
the contrast/bright volume, the fixing method has been changed.
                      (Refer to the attached sheet p.5/5.)
3) Action:
((For production))
From March 1997 production
4) Parts change:
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
All
4  -150
VHI27512RDM1A
VHI27256RDH1A
AW
ROM
Jun. ’97
1
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
KB/KA
TQ/TS/TR
2  - 15
LHLDW6820BHZZ
Unchanged
AE
Quick clamp
Mar. ’97
6
Q’ty: 
2
3
2
1  - 31
LBNDJ2003SCZZ
AA
Nylon band
Q’ty: 
10
9
3
U/A
AA
Q’ty: 
9
7
<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.
2/5
(1
) CHANG
E
D
 Q
UANTI
T
Y
 O
F
 T
H
E
 Q
U
ICK CLAMP
S
 (BI
G
FO
R THE
 RE
AR DI
S
P
LAY
 CABLE
S
 & T
H
E
 CO
RE
 FI
X
ING
 P
O
S
ITI
O
N
 CHANG
E
D
Ny
lon band
dec
reas
ed
<10
9>
(2
)
Q
uic
k
 c
lam
p (
big)
added <
2
3>
<
B
e
fo
re
 c
h
a
ngi
ng>
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
<C
ha
ng
e
d
>
3/5
(2
) 2
 NY
LO
BANDS
 DI
S
U
S
E
D
ny
lon bands
 dec
reas
ed <9
7>
2 ny
lon 
bands
 dec
reas
ed
  
  
  
  
  
  
 <
9
7>
<Fo
r U
/A
>
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
<For
 V
>
4/5
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Here you can read online and download Sharp ER-A750 (serv.man25) Technical Bulletin in PDF. ER-A750 (serv.man25) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp ER-A750 (serv.man25) EPOS. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.