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Model
ER-A610 (serv.man4)
Pages
64
Size
1.03 MB
Type
PDF
Document
Service Manual
Brand
Device
ECR / ERA610 Service Manual
File
er-a610-sm4.pdf
Date

Sharp ER-A610 (serv.man4) Service Manual ▷ View online

4
 Pin description
OPC1 pin table
The signals marked with "-" at the end are LOW active signals. Example: "CS1-" = "CS1"
No.
Pin No.
Pin name
I/O
Pin
ER-A610
Description
1
80
SL00
I
ICU
GND
RS-232/UNIT0 channel select
2
79
SL01
I
ICU
GND
3
78
SL02
I
ICU
GND
4
77
SL10
I
ICU
GND
RS-232/UNIT1 channel select
5
76
SL11
I
ICU
GND
6
75
SL12
I
ICU
GND
7
95
SL20
I
ICU
GND
RS-232/UNIT2 channel select
8
96
SL21
I
ICU
GND
9
52
SL22
I
ICU
GND
10
54
SL30
I
ICU
+5V
RS-232/UNIT3 channel select
11
93
SL31
I
ICU
GND
12
94
SL32
I
ICU
GND
13
36
CS0-
O
O
NC
RS-232 USART chip select
14
32
CS1-
O
O
NC
15
2
CS2-
O
O
CS3-
16
1
CS3-
O
O
NC
RS-232/INLINE USART chip select
17
81
CD0-
I
IS
+5V
RS-232 control signal CD- input
18
46
CD1-
I
IS
+5V
19
88
CD2-
I
IS
+5V
20
38
CD3-/P0-
I
IS
CD3-/PO-
RS-232 CD-/INLINE P0-
21
82
CTS0-
I
IS
+5V
RS-232 control signal CTS- input
22
47
CTS1-
I
IS
+5V
23
86
CTS2-
I
IS
+5V
24
43
CTS3-/P1-
I
IS
CTS3-/P1-
RS-232 CTS-/INLINE P1-
25
48
CI0-
I
IS
+5V
RS-232 control signal CI- input
26
45
CI1-
I
IS
+5V
27
87
CI2-
I
IS
+5V
28
99
CI3-/P2I
I
IS
CI3-/P21
RS-232 CI-/INLINE P2I
29
55
BRK0
I
ISC
GND
RS-232 USART BREAK signal
30
70
BRK1
I
ISC
GND
31
27
POFF-
I
IS
POFF-
POFF signal (LOW: P-OFF, HIGH: P-ON)
32
4
BRK3
I
IS
BRK3
RS-232/INLINE USART BREAK signal
33
57
RCVRDY0
I
ISC
GND
RS-232 USART RCVRDY signal
34
72
RCVRDY1
I
ISC
GND
35
74
RCVRDY2
I
ISC
GND
36
6
RCVRDY3
I
IS
RCVRDY3
RS-232/INLINE USART RCVRDY signal
37
59
TRNRDY0
I
ISC
GND
RS-232 USART TRNRDY signal
38
71
TRNRDY1
I
ISC
GND
39
98
TRNRDY2
I
ISC
GND
40
5
TRNRDY3
I
IS
TRNRDY3
RS-232/INLINE USART TRNRDY signal
41
56
TRNEMP0
I
ISC
GND
RS-232 USART TRNEMP signal
42
60
TRNEMP1
I
ISC
GND
43
100
TRNEMP2
I
ISC
GND
44
3
TRNEMP3
I
IS
TRNEMP3
RS-232/INLINE USART TRNEMP signal
45
58
RCVDT0
I
ISC
+5V
RS-232 RCVDT signal (LOW: TIMER START)
46
73
RCVDT1
I
ISC
+5V
47
97
RCVDT2
I
ISC
+5V
48
41
RCVDT3
I
IS
RCVDT3
RS-232/INLINE RCVDT signal
49
20
RSRQ-
O
3S
RSRQ-
RS-232 IRQ- signal
50
83
TRV-
I
ISC
+5V
INLINE YES/NO
51
7
RXDATA0
O
O
NC
INLINE RXDATA OUT
52
42
TXE
O
O
NC
INLINE TRNS ENABLE
53
84
TRRQ-
O
3S
NC
INLINE IRQ- signal
54
28
TRQ1-
O
3S
TRQ1
TIMER IRQ signal (RS-232)
 32 
No.
Pin No.
Pin name
I/O
Pin
ER-A610
Description
55
29
TRQ2-
O
3S
NC
TIMER IRQ signal (INLINE)
56
11
D0
I/O
IOU
D0
DATA BUS (MAIN)
57
12
D1
I/O
IOU
D1
58
13
D2
I/O
IOU
D2
59
14
D3
I/O
IOU
D3
60
16
D4
I/O
IOU
D4
61
17
D5
I/O
IOU
D5
62
18
D6
I/O
IOU
D6
63
19
D7
I/O
IOU
D7
64
61
DB0
I/O
IOU
DB0
DATA BUS (USART)
65
62
DB1
I/O
IOU
DB1
66
63
DB2
I/O
IOU
DB2
67
64
DB3
I/O
IOU
DB3
68
66
DB4
I/O
IOU
DB4
69
67
DB5
I/O
IOU
DB5
70
68
DB6
I/O
IOU
DB6
71
69
DB7
I/O
IOU
DB7
72
21
A0
I
I
A0
ADDRESS BUS (MAIN)
73
22
A1
I
I
A1
74
23
A2
I
I
A2
75
24
A3
I
I
A3
76
25
A4
I
I
A4
77
26
A5
I
I
A5
78
10
OPTCS-
I
I
OPTCS-
OPTION CHIP SELECT (from MAIN)
79
31
RDO-
I
I
RDO-
READ signal (from MAIN)
80
30
WRO-
I
I
WRO-
WRITE signal (from MAIN)
81
9
RES-
I
IS
RES-
RESET signal (from MAIN)
82
34
R-
O
O
R-
READ signal (To USART)
83
37
W-
O
O
W-
WRITE signal (To USART)
84
51
RES
O
O
RES
RESET signal (To USART)
85
92
X1
O
NC
cillation circuit
86
91
X2
I
X2
87
53
XOUT
O
O
XOUT
Clock for USART 
88
8
TRCK
O
O
TRCK
T/R clock for 1CH USART
89
35
AB0
O
O
AB0
Address bus for USART
90
33
AB1
O
O
NC
91
85
USICH
I
ISC
+5V
UNIT3 USART 1CH/2CH select
92
50
PX
O
NC
Power source clock
93
39
VCC
+5V
94
89
VCC
+5V
95
15
GND
GND
96
40
GND
GND
97
65
GND
GND
98
90
GND
GND
99
49
RTS0-
O
O
NC
RS-232 control signal RTS- output
100
44
RTS1-
O
O
NC
ICU : CMOS level input (internal pullup resistor)
O
: Output
IS
: TTL level input (internal schmit circuit)
ISC : CMOS level input (internal schmit circuit)
3S
: Three state output
IOU : I/O port (internal pullup resistor)
 33 
2)-2. Transmission Controller 71051G (USART)
The 7051G is a Universal Synchronous/Asynchronous Receiver/
Transmitter (USART) Chip designed for data communications in mi-
crocomputer systems. The USART is used as a  peripheral device
and is programmed by the CPU to operate using virtually any serial
data transmission technique presently in use. The USART accepts
data characters from the CPU in parallel format and then converts
them into a continuous serial data stream for transmission. Simulta-
neously it can receive a serial data stream and convert them into
parallel data characters for the CPU. The USART will signal the CPU
whenever it has received a character for the CPU. The CPU can read
the complete status of the USART at any time. These include data
transmission errors and control signals such as SYNC/BRK, TxEMPT.
NC
33
PIN  CONFIGURATION
NC
32
WR
31
TxCLK
30
D7
29
NC
28
D6
27
D5
26
D4
25
NC
24
NC
23
NC
12
Rx
CL
K
13
VD
D
14
D0
15
D1
16
IC
17
D2
18
D3
19
Rx
DA
T
A
20
GN
D
21
NC
22
NC
1
NC
2
TxDATA
3
CLK
4
RESET
5
NC
6
DSR
7
RTS
8
DTR
9
NC
10
SYNC/BRK
11
NC
44
Tx
E
M
P
43
CT
S
42
S
Y
NC/
B
R
K
41
T
x
RDY
40
NC
39
Rx
RDY
38
RD
37
C/
D
36
CS
35
NC
34
µPD71051G
Pin  name
Description
PIN  DESCRIPTION
Data bus (8bits)
Transmitter data
Transmitter clock
Transmitter ready
Transmitter empty
Receiver data
Receiver clock
Receiver ready
Clock pulse
Reset
Data set ready
Request to send data
Data terminal ready
Write data
Chip enable
Control or data is to be written or read
Read data
Break
+5V
D0~D7
TXDATA
TXCLK
TXRDY
TXEMP
RXDATA
RXCLK
RXRDY
CLK
RESET
DSR
RTS
DTR
WR
CS
C/D
RD
SYNC/BRK
VDD
3
 BLOCK  DIAGRAM
D7-D0
RESET
CLK
C/D
RD
WR
CS
DSR
DTR
CTS
RTS
TXDATA
TXRDY
TXEMP
TXCLK
RXDATA
RXRDY
RXCLK
SYNC/BRK
DATA
BUS
BUFFER
READ/WRITE
CONTROL
LOGIC
MODEM
CONTROL
TRANSMIT
BUFFER
(P.S)
CONTROL
RECEIVE
BUFFER
(S.P)
TRANSMIT
RECEIVE
CONTROL
INTERNAL
DATA  BUS
 34 
CHAPTER 5. TEST FUNCTION
1. General
1) This diagnostic program has been developed for diagnosing ma-
chine functions in the field. The program is contained with in the
ER-A610.
The diagnostic program is stored in the external ROM which will
be executed by the CPU (H8/510) which requires the following
diagnostic operations:
a) Proper power supply voltages are mandatory for logic circuits
(+5V, VRAM, VCKDC, POFF, 12V, +24V).
b) CPU input/output pins, CPU internal logic, CKDC4, MPCA5,
TPRC, address decoder, address bus, data bus, and common
ROM/RAM must be working properly.
2. Operational procedure
To start the diagnostic program, you must enter the following com-
mand.
3-digit test item number 
 TL  key in the SRV mode.
The key assignment must be properly set and a part for ROM and
RAM must be operating properly to go into this mode because the
control jumps to the program area in the SRV mode. A master reset
must be performed before operating the ECR for the first time. After
any option is installed, a program reset is required. When the master
reset or program reset is performed, be sure to check the printout on
the journal paper.
Master reset:
Turn power on in the SRV’ mode and change it
to the SRV mode with the  JF  key pressed.
Journal print:
MASTER RESET ***
Program reset: Turn power on in the SRV’ mode and change it
to the SRV mode.
Journal print:
PRG. RESET ***
3. Test command list
With the SRV mode and the following command entry, the test starts.
Code
Description
100
Display test-1
101
Key, clerk, and switch position code display
102
R/J printer test
103
Slip printer test
104
Keyboard test
105
Mode switch test
106
Validation sensor and near end sensor test
107
BOF, TOF and IFV test
108
Calendar oscillator test
109
SSP test
110
Drawer-1 open and sensor test
111
Drawer-2 open and sensor test
112
Drawer-3 open and sensor test
113
Drawer-4 open and sensor test
116
Display test-2
117
SIO test-1
120
Standard RAM test
130
Standard ROM test
150
R/J printer dot pulse width adjustment
200
(
206
Option RAM chip test
300
(
306
Option RAM address test
400
Option ROM test
[1] Display test-1
1
Key operation
100 
 TL 
2
Functional description
The following is displayed:
3
Check the following items:
a) Check for proper activation of display elements.
b) Check for blur, uneven illumination, and partial omission.
4
Test termination
Press any key. The test terminates with the test and message
printed.
                        100
Test termination print
[2] Key, cashier, and switch position code display
1
Key operation
101 
 TL 
2
Functional description
Key, clerk, and receipt switch codes are displayed.
3
Check the following items:
Change key and switch positions for proper display activation.
Clerk code:
Stay down key
000 (off state)
001 (Clerk A)
002 (Clerk B)
004 (Clerk D)
008 (Clerk E)
Receipt switch code:   0 (on state) 1 (off state)
Key code:
--- (simultaneous two key)
   depression, invalid entry)
   001 ~ 126
NOTE: Refer to JOB#104, key soft code, for the key code. (Fig.
3-2.)
4
Test termination
Change the MODE switch position other than SRV position to
terminate the test. The test termination message is printed.
                        101
Test termination print
DOT DISPLAY :
C L
S W
K
Key code
Receipt SW code
Clerk code
POP-UP DISPLAY:
DOT DISPLAY
:
 35 
Page of 64
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