DOWNLOAD Sharp ER-A880 (serv.man4) Service Manual ↓ Size: 29.96 KB | Pages: 2 in PDF or view online for FREE

Model
ER-A880 (serv.man4)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
29.96 KB
Type
PDF
Document
Service Manual
Brand
Device
EPOS / ERA8MR Magnetic Card Reader Service Manual
File
er-a880-sm4.pdf
Date

Sharp ER-A880 (serv.man4) Service Manual ▷ View online

SERVICE MANUAL
CODE: 00ZERA8MRSM/E
Magnetic Card Reader
MODEL 
ER-A8MR
1.
2.
3.
4.
5.
CONTENTS
SHARP CORPORATION
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.
1. Functions
Card operation
One way manual swipe
Write/Read
Read only
2. Applicable cards
Magnetic stripe card
Cards encoded as based on ISO
7811/1
5 (Track 1 and 2)
Type: Track 1 (210BPI F2F)
Type:
 Track 2 (75BPI F2F)
3. Basic performance
Readable operating speed
8cm/sec 
 150cm/sec
Output signals
RDD- : Read data
RCP- : Read clock pulse
CLS- : Card loading signal
4. Environmental characteristics
Temperature
–20°C 
 +60°C / 30% 
 95% RH
Storage
–30°C 
 +70°C / 10% 
 95% RH
5. Life
Unit life
More than 300,000 card passes
Card life
More than 1,000 passes
6. Circuit description
For the MCR unit of the ER-A8MR, the component parts are not
supplied. Therefore replace the whole MCR unit. The following de-
scriptions are for your reference only.
1) Block diagram
Figure 1 BLOCK DIAGRAM
2) Output circuit
Figure 2 OUTPUT CIRCUIT
3) Received circuit
Figure 3 RECEIVED CIRCUIT (Recommendation)
4) Timing chart
Figure 4 TIMING CHART
Notes
1. Basically, CLS is not output when
a) a card is not inserted right
b) data is not encoded in a card
because CLS signal is generated by head output pulses. But if a
card is slid too fast CLS may be induced in the case of b).
2. CLS signal turns into "H" if a card is stopped on the way.
4. CLS, RCP and RDD are generated for a short while (for 0.2sec. or
less) after the passing a card.
Head A
RCP (1)
5
Signal
Connector
pin No.
RDD (1)
4
CLS (1)
3
VCC
+5V
1
GND
2
RCP (2)
8
RDD (2)
7
CLS (2)
6
Head B
Read
amplifier
Wave form
arrangement
F2F
decoder
Output
arrangement
Output
arrangement
Output
arrangement
CLS generation
Referfnce voltage
+VCC
GND
OUTPUT
RDD
RCP
CLS
+VCC
4.7K
10K
C • MOS 4069 or eq.
Head output
Valid data
Start mark
All "0"
End mark
All "0"
16 x FC (Typ) (Track1)
  4 x FC (Typ) (Track2)
0.2sec Max.
H
L
RCP
H
L
RDD
H
L
CLS
Card output signals
Indefinite signals
FC : Flux change
TB
(ms)
210BPI 75BPI
0.12
V
0.34
V
V(m/s) : Card speed
H
L
RCP
TB
12µs (Min)
16µs (Typ)
H
L
RDD
"0"
"1"
"1"
"0"
5µs (Min)
8µs (Typ)
TB will vary eith
changes of card speed
and jitter
It is recommended to
use the leading edge
of RCP pulse as the
clock timing
– 1 –
Display

Sharp ER-A880 (serv.man4) Service Manual ▷ Download

  • DOWNLOAD Sharp ER-A880 (serv.man4) Service Manual ↓ Size: 29.96 KB | Pages: 2 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp ER-A880 (serv.man4) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp ER-A880 (serv.man4) EPOS. Information contained in Sharp ER-A880 (serv.man4) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.