Sharp XE A302 - Cash Register Service manual

q SERVICE MANUAL
CODE : 00ZXEA302USME
ELECTRONIC
CASH REGISTER
MODEL
XE-A302
(U and A version)
CONTENTS
CHAPTER 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CHAPTER 3. MASTER RESET AND PROGRAM RESET. . . . . . . . . 4
CHAPTER 4. HARDWARE DESCRIPTION . . . . . . . . . . . . . . . . . . . . 5
CHAPTER 5. DIAGNOSTIC PROGRAM . . . . . . . . . . . . . . . . . . . . . 11
CHAPTER 6. IPL FROM EP-ROM . . . . . . . . . . . . . . . . . . . . . . . . . . 15
CHAPTER 7. CAUTION TO BE USED WHEN
CONNECTING THE RS-232 CABLE . . . . . . . . . . . . . 16
CHAPTER 8. CIRCUIT DIAGRAM AND PWB LAYOUT . . . . . . . . . 17
Parts marked with "!" are 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.
SHARP CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CHAPTER 1. SPECIFICATIONS
■ Key names
1. APPEARANCE
Front view
KEY TOP
Rear view
Customer display
(Pop-up type)
Operator display
DESCRIPTION
0-9, 00
Printer cover
•
Receipt paper
CL
Numeric keys
Decimal point Key
Clear key
@/FOR
Multiplication key
2
Power cord
Mode switch
Drawer
RA
Received-on-account key
RCPT/PO
Receipt print/Paid out key
Keyboard
Drawer lock
RS-232C connector
Printer
Take-up spool
Paper feed key
RFND
Refund key
CLK#
Clerk code entry key
VOID
Void key
AUTO
Automatic sequence key
CH1, 2
Paper roll cradle
Charge 1, 2 keys
CHK
Check key
TAX1, 2 SHIFT
Print roller arm
Tax1, 2 shift keys
TAX
Paper positioning guides
TAX key
%1, 2
Print roller
release rever
Percent 1, 2 keys
-
Inner cover
Discount key
CONV
Conversion key
E/J PRINT
2. RATING
Electronic journal print key
(D-PLU) 1-75
Direct PLU 1-75 keys
DEPT1-6
Department 1-6 keys
DEPT#
XE-A302
Department code entry key
PLU/SUB
Weight
27.6lb (12.5kg)
Dimensions
421 (W) x 429 (D) x 297 (H) mm
16.6 (W) x 16.9 (D) x 11.7 (H) inches
Power source
AC 120V (m10%), 60Hz
PLU/Sub department code entry key
#/TM/SBTL
Power consumption
Stand-by 8W, Operating 30W (max.)
Working temperature
0°C~40°C (32°F to 104°F)
Non add code Entry/Time/Subtotal key
MDSE SBTL
Merchandise subtotal key
CA/AT
Total/Amount tender/No sale
ESC
Escape key
4. MODE SWITCH
3. KEYBOARD
4-1. LAYOUT
3-1. KEYBOARD LAYOUT
• Rotary type
Flat keyboard
Key pitch
18 (W) x 15 (H) mm
Key stroke
1.1 m 0.2mm
Caption on key top
Key sheet
REG
OPX/Z
OFF
VOID
PGM
■ Keyboard layout
E/J
PRINT
67
68
69
70
71
72
73
74
75
CLK#
56
57
58
59
60
61
62
63
64
65
DEPT
66 #
45
46
47
48
49
50
51
52
53
54
55
34
35
36
37
38
39
40
41
42
43
44
23
24
25
26
27
28
29
30
31
32
33
12
1
13
2
14
3
15
4
16
5
17
6
18
7
19
8
20
9
21
10
22
11
%1
%2
2
4
6
1
3
5 RCPT
/PO
PLU
/SUB @/FOR
CL
TAX CONV
9
TAX1 TAX2
SHIFT SHIFT
4
5
6
CH1 CH2
3
MDSE CHK
SBTL
1
2
0
00
Operator key (OP)
X2/Z2
The mode switch can be operated by inserting one of the two supplied
mode keys - manager (MA) and operator (OP) keys. These keys can be
inserted or removed only in the “REG” or “OFF” position.
RA
8
VOID
X1/Z1
AUTO ESC
7
RFND
MGR
OP
3-2. KEY LIST
2
Manager key (MA)
MA
OP
MA
Type
#/TM
SBTL CA/AT
XE-A302U
SPECIFICATIONS
–1–
■ Operator display
The mode switch has these settings:
OFF:
This mode locks all register operations. (AC power turns off.)
No change occurs to register data.
Function message display area
OP X/Z: To take individual clerk X or Z reports, and to take flash
reports.
Clerk code or mode name
It can be used to toggle receipt state “ON” and “OFF” by pressing he [RCPT/PO] key.
REG:
For entering sales.
PGM:
To program various items.
VOID:
Enters into the void mode. This mode allows correction after
finalizing a transaction.
MGR:
For manager’s entries. The manager can use this mode for an
override entry.
Receipt OFF indicator
Numeric entry display area
Repeat / Sentinel mark / Power save mark
• Clerk code or Mode name
The mode you are in is displayed. When a clerk is assigned, the clerk
code is displayed in the REG or OP X/Z mode. For example, “*01*”
is displayed when clerk 01 is assigned.
X1/Z1: To take the X/Z report for various daily totals.
X2/Z2: To take the X/Z report for periodic (weekly or monthly) consolidation.
• Repeat
The number of repeats is displayed, starting at “2” and incremental
with each repeat. When you have registered ten times, the display
will show “0” (2 3 3......9 3 0 3 1 3 2...)
5. DISPLAY
5-1. OPERATOR DISPLAY
Display device
: LCD
Number of line
: 2 line
• Sentinel mark
When amount in the drawer reaches the amount you preprogrammed, the sentinel mark “X” is displayed to advise you to remove
the money and put it in a safe place.
Number of positions : 16 positions
Color of display
: Yellow / Green
Character form
: 7 segment + Dp
Character size
: 14.2 (H) x 7.9 (W) mm
• Power save mark
When the cash register goes into the power save mode, the power
save mark (decimal point) lights up.
• Function message display area
Item labels of departments and PLU/subdepartments and function
texts you use, such as %1, (-) and CASH are displayed.
Layout:
When an amount is to be entered or entered, “AMOUNT” is displayed: When an amount is to be entered, ------- is displayed at the
numeric entry area with “AMOUNT”. When a preset price has been
set, the price is displayed at the numeric entry area with “AMOUNT”.
• Numeric entry display area
5-2. CUSTOMER DISPLAY
Display device
: LED
Number of line
: 1 line
Numbers entered using numeric keys are displayed here.
Date and time display
Date and time appear on the display in the OP X/Z, REG, or MGR
mode. In the REG or MGR mode, press the [#/TM/SBTL] key to display the date and time.
Number of positions : 7 positions
Color of display
: Yellow / Green
Style
: Pop up type
Character form
: 7 segment + Dp
Character size
: 14.2mm (H) x 7.9mm (W)
Error message
When an error occurs, the corresponding error message is displayed
in the function message display area.
■ Customer display (Pop-up type)
Layout:
Power save mark
(Lighting the mark only under the power save mode)
XE-A302U
SPECIFICATIONS
–2–
6. PRINTER
7. DRAWER
[OUTLINE]
6-1. PRINTER
• Standard equipment: Yes
• Part number
: M-T53II
• NO. of station
: 1 (Receipt or journal)
• Validation
: No
• Printing system
: Line thermal
1) Drawer box (outer case) and drawer
• No. of dot
: 288 dots
2) Coin case (for SEC)
• Dot pitch
: Horizontal
0.167mm
3) Money case
Vertical
0.174mm
4) Lock (attached to the drawer)
• Font
• Max. number of additional drawers: 0
• The drawer consists of:
: 10 dots (W) x 24 dots (H)
[SPECIFICATION]
• Printing capacity : max. 24 characters
• Character size
: 1.67mm (W) x 4.17mm (H) at 10 x 24 dots
• Print pitch
: Column distance 2.0mm
Row distance
• Print speed
7-1. DRAWER BOX AND DRAWER
5.21mm
: Approximate 60mm/s (12 lines/sec)
Model name of the drawer box
SJ423
Size
420 (W) x 426 (D) x 114 (H) mm
16.5 (W) x 16.8 (D) x 4.5 (H) inches
Color
Gray (PB-N8.0)
• Paper feed speed : Approximate 60mm/s (12 lines/sec)
(Manual feed)
Material
Metal
Bell
—
• Reliability
Release lever
Standard equipment: situated at the
bottom
: Mechanism LIFE 6 million lines used to highquality thermal paper
• Paper end sensor : Set up
• Cutter
: No
• Near end sensor : No
—
Separation from the main unit
—
7-2. MONEY CASE
6-2. PAPER
• Paper roll dimension : 57.5 m 0.5mm in width
Max. 80mm
• Paper quality
Drawer open sensor
in diameter
: High-quality thermal paper
paper thickness: 0.06 to 0.08mm
Separation from the drawer
Allowed
Separation of the bill compartments from the
coin compartments
Allowed
Bill separator
Allowed
Number of compartments
5B/6C
6-3. LOGO STAMP
• No
5B/6C
6-4. PRINTING AREA
7-3. LOCK (LOCK KEY : LKGIM7331BHZZ)
Number of thermal head heater elements 288 dots
Location of the lock: Front
(4.75)
Method of locking and unlocking:
print area
(max.24 characters)
To lock, insert the drawer lock key into the lock
and turn it 90 degrees counter clockwise.
To unlock, insert the drawer lock key and turn it
90 degrees clockwise.
Key No:
SK1-1
57.5±0.5
(Paper dimension)
ck
unlo
0.167
Lo
48 (288 dots)
SK1-1
(4.75)
ck
(units : mm)
8. BATTERY
8-1. MEMORY BACK UP BATTERY
Built-in battery: Rechargeable batteries, memory holding time about 1
month (with fully charged built-in batteries, at room
temperature)
XE-A302U
SPECIFICATIONS
–3–
CHAPTER 2. OPTIONS
1. OPTIONS (NO)
2. SERVICE OPTIONS (NO)
3. SUPPLIES
NO
1
PARTS CODE
PRICE
RANK
TPAPR6656RC05
BA
PARTS CODE
PRICE
RANK
UKOG-6705RCZZ
BC
NAME
Thermal roll paper
DESCRIPTION
5 ROLLS/PACK
4. SPECIAL SERVICE TOOLS
NO
1
NAME
RS-232 Loop-back connector
DESCRIPTION
CHAPTER 3. MASTER RESET AND PROGRAM RESET
1. MASTER RESETTING
2. PROGRAM RESETTING (INITIALIZATION)
Master resetting clears the entire memory and resumes initial values.
This resetting resumes the initial program without clearing memory.
Master resetting can be accomplished by using the following procedure:
This resetting can be operated at below sequence in PGM mode.
Procedure A: 1) Unplug the AC cord from the wall outlet.
Procedure:
1) Unplug the AC cord from the wall outlet.
2) Set the mode switch to the PGM position.
2) Set the mode switch to the PGM position.
3) While holding down both the JOURNAL FEED key
and [CL] key, plugin the AC cord to the wall outlet.
3) While holding down both JOURNAL FEED key and
RECEIPT FEED key, plugin the AC cord to the wall
outlet.
The master reset can also be accomplished in the following case.
Note: In case power failure occurs when the machine has no battery
attached to it, the master reset operation is automatically performed after the power has been restored.
In case power failure occurs when the machine has no battery
attached to it, the master reset operation is automatically performed
after the power has been restored.
(This is because if power failure occurs with no battery attached to
the machine, all the memories are lost and the machine does not
work properly after power recovery; this requires the master reset
operation.)
XE-A302U
OPTIONS
–4–
CHAPTER 4. HARDWARE DESCRIPTION
1. BLOCK DIAGRAM
2. MEMORY MAP
XE-A302U
2-1. ADDRESS MAP
VH (8V)
VLED (5.7V)
VCC
VDD
VDRW (+23.8V)
VLMP (4.3V)
DRAWER1
BR0~2
CPU
12MHz
32.768kHz
GAL
/CS0
RAM 10k BYTE
Bank 0
Bank 1
Bank 2
Bank 3
Bank 4
Bank 5
Bank 6
Bank 7
0
0
0
1
0
0
0
1
0
1
1
0
0
0
1
1
0
1
0
1
1
1
1
1
BR0
BR1
BR2
BZ
00000h
SFR area
00400h
Internal RAM area 10KB
02C00h
Internal reserved area
External I/O
08000h
External SRAM 1
128KB
/CS1,/CS2
28000h
External SRAM 1
32KB External SRAM 1
30000h
D0~7
External SRAM 1
SRAM1
SRAM2
60000h
FROM
EPROM
80000h
External SRAM 1
256KB
IPL SW
OFF:F-ROM
ON:EP-ROM
DRIVER, SENSOR
HC
138
HC375
FRONT
HC245
2Line
C0000h
(Program)
(512KB)
HIN
211
211
(Reserve)
(Reserve)
Not used
512KB
Not used
512KB
/CS1
/RAMCS1
64KB
External
SRAM 2
256KB
(Reserve)
External
SRAM 2
256KB
(Reserve)
External
SRAM 2
256KB
(Phantom)
External
SRAM 2
256KB
(Phantom)
/CS0
/RAMCS2
Flash ROM
Program 256KB
Even if the bank is changed, the
same address can be accssed.
HC245
Not used bank 4, 5 and bank 6, 7
Pop
PRINTER
DIG DRV
CH2
Caution: The printer handler and so on should be
stored to C0000h or later.
up
RS-232
CH1
Flash ROM Flash ROM
(CG Data) (CG Data)
32KB External SRAM 1
32KB
(Phantom)
FFFFFh
LCD
HC374
HIN
F-ROM
(Program)
(512KB)
/CS2
32KB External SRAM 1
(Phantom)
40000h
A0~19
CS3
04000h
7deg
SEG DRV
LED
4 to 16
Pop up
Decoder
/S0
9
KEY
&
LCD
HC245
KR0 KR7
KR0 KR11
2-2. EXTERNAL BUS
SW
External BUS ACCESS SPEED
CPU
SRAM/EPROM/FLASH ROM ; 2 BCLK
MITSUBISHI M30620SAFP
(INTERNAL RAM 10KB)
External I/O ; 2 BCLK *1BCLK = 83.3ns (at 12MHz)
SRAM
EXTERNAL MEMORY
SRAM
FLASH ROM
512KB
512KB
SHARP LH28F004BVT
/CS2 area:
/CS1 area BANK 0, 2:
/CS0 area BANK 0:
Reserve /CS0 area BANK 4, 5:
FLASH
ROM
PRINTER
/CS0 area BANK 0
M-T53II
Reserve /CS0 area BANK 6:
RS-232
I/O
1ch
Battery
Ni-MH
XE-A302U
HARDWARE DESCRIPTION
–5–
/CS3 area BANK 0:
address 08000h ~ 27FFFh 128KB
address 28000h ~ 2FFFFh 32KB x 2
address 30000h ~ 3FFFFh 64KB
address 40000h ~ 7FFFFh 256KB
address 40000h ~ 7FFFFh 256KB x 2
address 80000h ~ FFFFFh 256KB
(Moves to Bank 1 when
rewritten using EPROM)
address 80000h ~ FFFFFh 256KB
address 04000h ~ 07FFFh 16KB
3. PRINTER CONTROL
3-1. STEPPING MOTOR CONTROL
Conduction pulse width: Refer to the M-T53II specifications.
The two phase Bi-Polar stepping motor is driven at a constant voltage
by SANYO LB1838M.
1step: 0.087mm, 1dot: 2step
OFF time of print strobe
Logo print ratio restriction : Average print ratio 35% or below (Same as
the M-T51)
When the print ratio at the peak one-dot
line is 50%, the average print ratio of 10dot line including the above line should be
35% or less.
< CPU’s PORT >
No.
CPU PORT
Signal to be used
76
P14
IN1
75
P15
IN2
74
P16
ENA1
73
P17
ENA2
*When turning on or off the printer power supply, make sure to turn
/STB1, 2 to “H”.
< Driving steps >
*Do not turn on without paper.
Driver IC input
(CPU output)
STEP
IN1
IN2
: Conduction strobe OFF time between dots
min. 160us
ENA1
*THERMAL HEAD power supply control : Turns ON when P105= “H”;
turns OFF when “L”. (The power supply for HEAD and STEPPING
MOTOR is shared). When printing is finished (when the motor is
stopped) Athe power should be turned OFF.
Motor driving signal
ENA2
A
(OUT1)
B
(OUT3)
/A
(OUT2)
/B
(OUT4)
1
L
L
H
H
H
H
L
L
2
H
L
H
H
L
H
H
L
3
H
H
H
H
L
L
H
H
4
L
H
H
H
H
L
L
H
*Before printing or feeding paper, perform A/D conversion in 20 ms
after the printer head is turned ON and make sure the voltage is stable.
(The power supply of the printer head should be turned ON and OFF
by using the regulator IC.)
*When the motor is at rest, the same phase as the final excitation
phase is RUSH energize to turn off all phases. 3 Turn ENA1 and
ENA2 into L.
*The head rank confirmation was abolished.
No energizing should be allowed at lease 40 ms after stopping the
motor before restarting.
3-3. WINDING MOTOR CONTROL
<Related port>
When starting the motor etc, required the chopping
3-2. HEAD CONTROL
No. I/O PORT Function
HEAD: 288 dots in all, width: 0.167mm/dot (6dot/mm)
21 Out
P81
<Related PORT>
No.
I/O
PORT
Signal
name
Function
Initial
value
Port setup
in single
chip mode
18
OUT
P84
PRINTING
/STB2
89
OUT
P107
PRINTING
/STB1
H
Out L
H
Out L
30
OUT
P70
TXD2
28
OUT
P72
CLK2
PRINTING
PCLK
(Transfer Clock)
90
OUT
P106
91
OUT
P105
PRINTING
VPON (Head
motor POWER
SUPPLY)
/STB1: 1 ~ 144 dot: 144 dots in all
/STB2: 145 ~ 288 dot: 144 dots in all
1
Out L
Printer motor
(Winding motor)
Initial
Port setup in
value single chip mode
L
ON
3-4. PAPER EMPTY DETECTION
When LOW is detected twice continuously in sampling of signals for
every one dot line, it is judged as paper empty.
The threshold level of High/Low level is 2.5 m 0.2V. (Vcc = 5VDC m 5%)
PRINTING
DAT
(Print DATA)
PRINTING
/LAT
(DATA Latch)
H
Signal
name
When paper empty is detected, printing is terminated. However, when
paper empty is detected during printing, 15-dot lines from detection of
paper empty can be printed.
3-5. PLATEN OVER
Out L
When signals are sampled in the frequency of 1ms or less and open
state is detected twice continuously, it is judged as platen over.
H
Out L
L
Out L
If the head is conducted under the platen over state, the thermal head
life may be shortened. When, therefore, platen over is detected, printing
is terminated.
Under the platen over state (switch open state), driving the paper feed
motor is inhibited.
Total 288 dots
288
XE-A302U
HARDWARE DESCRIPTION
–6–
4. CPU
M16C/64A PORT MEMORY SPACE: NORMAL MODE
PROCESSOR MODE: MICRO PROCESSOR MODE
It is used by (SEPARATE BUS 8bit Width)
• M16C/64A Group: M30620SAFP
• Processor mode = Microprocessor mode
• Internal reserve area, without expansion
• Multi function 16-bit Timer: Output system 5 lines + input system 6 lines
• Serial I/O:
PORT
PIN
No.
I/O
Pin
name
Signal
name
Initial
value
OFF
MODE
PORT
PIN
No.
I/O
P00
88
I/O
D0
D0
P01
87
I/O
D1
D1
Out L
P54
42
O
/HLDA
(NU)
Out L
P55
41
I
/HOLD
/HOLD
P02
86
I/O
D2
D2
In
Out L
P56
40
O
ALE
(NU)
Out L
P03
85
I/O
D3
P04
84
I/O
D4
D3
Out L
P57
39
I
/RDY
/RDY
D4
Out L
P60
38
O
/RTS0
/RS2
H
P05
83
I/O
In
D5
D5
Out L
P61
37
O
CLK0
N.U. (FSCK)
L
Out L
P06
82
I/O
FMC DSCK
D6
D6
Out L
P62
36
I
RXD0
RD2
In
RS-232 RD2
P07
81
I/O
D7
D7
P10
80
O
P10
/PLCS
H
Out L
Pop up LCD
Chip Select
P63
35
O
TXD0
SD2
L
Out L
RS-232 SD2
P64
34
O
/RTS1
/RS1
H
Out L
RS-232 /RS1
P11
79
O
P11
/PLRD
H
Out L
Pop up LCD
Read clock
P65
33
I
P65
IPL ON
In
IPL ON Signal
P12
78
O
P12
/PLWR
H
Out L
Pop up LCD
Write clock
P66
32
I
RXD1
RD1
In
RS-232 RD1
P13
77
O
P13
PLDATA
L
Out L
Pop up LCD
serial DATA
P67
31
O
TXD1
SD1
H
Out L
RS-232 SD1
P14
76
O
P14
IN1
L
Out L
Paper feed
motor (IN1)
P70
30
O
TXD2
DAT
L
Out L
PRINTER DATA OUT
P15
75
O
P15
IN2
L
Out L
Paper feed
motor (IN2)
P71
29
I
RXD2
N.U. (BUSY)
P16
74
O
P16
ENA1
L
Out L
Paper feed
motor (ENA1)
P72
28
O
CLK2
PCLK
P17
73
O
P17
ENA2
L
Out L
Paper feed
motor (ENA2)
P73
27
O
P73
P20
72
O
A0
A0
Out L
P74
26
O
P21
71
O
A1
A1
Out L
P75
25
I
Function
Out L
Pin
name
Signal
name
Initial
value
OFF
MODE
Function
Out L
In
RS-232 /RS2
In
PRINTER DATA IN
L
Out L
PRINTER CLOCK
DRAWER 1
L
Out L
DRAWER DRIVE SIGNAL
P74
/ER1
H
Out L
RS-232 /ER1
P75
/CD1
In
RS-232 /CD1
P22
70
O
A2
A2
Out L
P76
24
I
P76
/CS1
In
RS-232 /CS1
P23
69
O
A3
A3
Out L
P77
23
I
P77
/DR1
In
RS-232 /DR1
P24
68
O
A4
A4
Out L
P80
22
O
P80
BUZZER
L
P25
67
O
A5
A5
Out L
P81
21
O
P81
MOTOR
L
P26
66
O
A6
A6
Out L
P82
20
I
/INT0
/POFF
P27
65
O
A7
A7
Out L
P83
19
O
/INT1
/WP
H
Out L
P30
63
O
A8
A8
Out L
P84
18
O
P84
/STB2
H
In
P31
61
O
A9
A9
Out L
P85
17
I
/NMI
(NU)
P32
60
O
A10
A10
Out L
P86
11
O
XCOUT
XCOUT
P33
59
O
A11
A11
Out L
P87
10
I
XCIN
XCIN
P34
58
O
A12
A12
Out L
P90
7
I
P90
MDR
P35
57
O
A13
A13
Out L
P91
6
I
P91
MSENS
P36
56
O
A14
A14
Out L
P92
5
O
P92
BR1
Out L
In
Printer winding motor
In
Power interruption
FROM /WP
PRINTER /STB2
In
32.768kHz
32.768kHz
In
In
L
Out L
MODE KEY SENSE
MISCELLANEOUS SENSE
BANK signal1
P37
55
O
A15
A15
Out L
P93
4
O
P93
BR0
L
Out L
BANK signal0
P40
54
O
A16
A16
Out L
P94
3
O
P94
/LDCS
H
Out L
LCD DATA LATCH signal
P41
53
O
A17
A17
Out L
P95
2
O
P95
BLON
L
Out L
BACK LIGHT ON
P42
52
O
A18
A18
Out L
P96
1
O
P96
LCDON
L
Out L
LCD POWER ON
P43
51
O
A19
A19
Out L
P97
100
O
P97
BR2
L
Out L
BANK singal2
P44
50
O
/CS0
/CS0
Out H
P100
97
I
AN0
TM
In
P45
49
O
/CS1
/CS1
Out H
P101
95
I
AN1
VPTEST
In
HEAD voltage monitor
P46
48
O
/CS2
/CS2
Out H
P102
94
I
AN2
VREF
In
Referance voltage
P47
47
O
/CS3
/CS3
Out L
P103
93
I
AN3
VBAT
In
VBAT (Battery voltage)
RS-232 /ER2
External I/O
Chip Select
HEAD temperature monitor
P50
46
O
/WR
/WR
Out L
P104
92
O
AN4
/ER2
H
In
P51
45
O
/BHE
(NU)
Out L
P105
91
O
P105
VPON
L
Out L
P52
44
O
/RD
/RD
Out L
P106
90
O
P106
/LAT
H
In
PRINTER DATA LATCH
P53
43
O
BCLK
BCLK
Out L
P107
89
O
P107
/STB1
H
In
PRINTER /STB1
XE-A302U
HARDWARE DESCRIPTION
–7–
PRINTER HEAD POWER
<Power supply/CONTROL pins>
PORT
PIN
No.
I/O
Pin name
BYTE
8
I
BYTE
Connected to VDD
Connected to VDD
CNVss
9
I
CNVss
/RESET
12
I
/RESET
Xout
13
O
Xout
Vss
14
Xin
15
Vcc
16
I
Function
PORT
PIN
No.
Vcc
62
I/O
Pin name
Function
Vcc
Connected to VDD
Vss
64
Vss
connected to GND
AVss
96
AVss
Connected to GND
OPEN
Vref
98
Vref
Connected to VDD
Vss
Connected to GND
AVcc
99
AVcc
Connected to VDD
Xin
connected to Spectram diffusion IC
Vcc
Connected to VDD
5. KEY-DISPLAY
5-1. LCD CONTROL
5-2. KEY/DISPLAY SCAN
Basically the same as the XE-A401 and ER-A275P.
On the machine, the key and display scan signal is common.
<LCD-related registers>
KEY/display SCAN and key read should be performed at the following
timing.
Function
Address
R/W
LCD Write Data
04001h
W
1 KEY/display SCAN cycle: 10ms
LCD Read Data
04002h
R
2 Blanking time: 50us
LCD Control Signal / Key Strobe Signal
04003h
W
Data Latch Signal
CPU port P94
W
3 KEY DATA READ timing: More than 10 ms from the fall of the SCAN
signal
<Key/Display-related registers>
< LCD Control Signal / Key Strobe Signal >
Function
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
04003h
–
E
R/W
RS
KS3
KS2
KS1
KS0
Bit7 : Not used
Bit6 : E
Enable Signal
Bit5 : R/W
H : Data read
Address
R/W
LED Segment Signal
04000h
W
LCD Control Signal / Key Strobe Signal
04003h
W
Key Return Signal
04003h
R
< LED Segment Signal > … Wite
Enable
L : Data Write
Bit4 : RS
H : Data input L : Instruction Input
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
04000h
dp
g
f
e
d
c
b
a
< LCD Control Signal/Key Strobe Signal > … Write
< Data Latch Signal >
L : LCD write data latch
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
04003h
-
E
R/W
RS
KS3
KS2
KS1
KS0
Bit3 ~ 0 : KS3 ~ 0
Strobe signals for keys and POP UP Display are generated at KS3 - 0.
< Key Return Signal > … Read
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
04001h
-
-
-
-
KR11
KR10
KR9
KR8
04003h
KR7
KR6
KR5
KR4
KR3
KR2
KR1
KR0
Normal Keyboard : 04003h
Flat Keyboard : 04001h + 04003h
XE-A302U
HARDWARE DESCRIPTION
–8–
5-3. KEYSCAN MATRIX
PENDING
Others
CPU
STO
ST1
ST3
ST4
ST5
ST6
ST7
MODE
P90
SRV
PGM
ST2
Time
REG
MGR
X1/Z1
X2/Z2
Others
P91
PF
HEAD
UP
PE
KEYBD
: 1=Normal Keyboard/0=Flat Keyboard
HEAD UP
: 1=Up/0=Down
PE
: 1=Paper End/0=Paper Not End
ST8
ST9
KEYBD
DRAWER
OPEN
RS-232
CI1
DRAWER OPEN : Reserved (1=Open/0=Close)
RS-232 CI1 :
6. POWER SUPPLY
5-4. DISPLAY (PENDING)
The machine has an LCD display, 5 x 7 dots, 2 lines, 16digits, at the
front side and a 7-digit LED at the pop-up side
After detection of /POFF, power interruption must be executed within 10ms.
FRONT:
TRANS.
VDRW 24V Drawer
PQ1CG203
BA00ASFP
PQ1CG203
VLMP 4.3V
LCD
VLED
5.7V
VCC 5V
VDD 5V
POP UP:
/POFF
detection point
Batterry
ON/OFF control (MODE SW)
VH 8V
LM2574
+ Tr.
PRINTER HEAD MOTOR
Winding motor
ON/OFF control
(MODE SW, /POFF, CPU P105)
• Display DIGIT signal
The above ST0 ~ ST6 are display digit signals.
7. REWRITING FLASH MEMORY
ST0: 1st digit ~ ST6: 7th digit
• Display SEGMENT signal
IPL from EP-ROM: After IPL SW is set to ON side the program is
started from EP-ROM by turning on the power.
The program on EP-ROM is transferred to flash
ROM by switching the banks through S-RAM.
The LED segment signal is outputted by writing SEGMENT data in
the /CS3 space.
Correspondence of DATA ~ SEGMENT
IPL from COM:
D0 ~ D6 3 a ~ g
Data from the PC is written to flash ROM through
the COM port. (Max. 38.4 kbps)
D7 3 DP
8. DRAWER
The machine has a 1 channel of drawer port.
No open sensor is provided.
The driving time for the DRAWER solenoid are as follows:
50ms (max) 45ms (min)
XE-A302U
No.
I/O
PORT
27
OUT
P73
HARDWARE DESCRIPTION
–9–
Function
Signal Name
Initial value
Drawer Drive Signal
L
9. A/D CONVERSION
11. RESET
The machine has the following four signals at the A/D conversion ports.
The RESET signal is canceled when the power source of the device
which used the 5V system (VCC, VDD, VLED) reaches the operating
voltage.
<CPU’s PORT>
No.
CPU
PORT
Signal
name
FUNCTION
97
AN0
TM
PRINTER HEAD temperature monitor
95
AN1
VPTEST
94
AN2
VREF
Refarence voltage
93
AN3
VBAT
VBAT (Battery voltage)
The RESET signal is generated under the following conditions.
1) When the mode key switch is set from SRV' to another position
(except for OFF position).
PRINTER HEAD voltage monitor
2) When the power is turned on after 5sec or more from turning off the
power and the VCC reaches 5V.
1 Printer head temperature monitor
A voltage divided by the printer head temperature monitoring thermistor and the resistor is inputted to AN0 pin.
Printer head conduction must be controlled as shown below. For
the printer head conduction time, refer to the M-T53II specifications.
3) When the mode key switch is set from OFF position to another position (except for SRV’ position) and VCC reaches 5V. (If the OFF
time is within 5sec, the RESET signal may not be supplied.)
12. POFF
The POFF signal is changed from 0 to 1 when the 5V power and the
24V power reach the operating voltage level. When they fall below the
operating voltage level, the POFF signal is changed from 1 to 0.
HEAD
tempreture
A/D conversion
value (DEC)
-10°C or below
929~1023
MOTOR LOCK
-10°C ~ 0°C
869~928
Print in conduction time at 0°C
0°C ~ 70°C
232~868
Print in conduction time specified
in the PR-45M specifications.
+5V
70°C or above
0~231
MOTOR LOCK
+24V
Operation
<POFF, RESET TIMING CHART>
4.5V
2 Printer head voltage monitor
20.8V
/POFF
A voltage supplied by the printer head power through the printer
and divided by the resistor is inputted to AN1 pin. The A/D conversion value is read after turning the VPON signal (CPU P105) to
HIGH and stabilizing the voltage (20msec).
The print enable voltage range is 7.5V ~ 8.0V (A/D value: ??? ~
???). The voltage is calculated from the AN1 value and the A/D
conversion value of the AN2 reference voltage. For the calculation
method, refer to the M-T53II specifications.
POWER ON
The CPU power VDD is used as the reference voltage.
4 Battery remaining voltage
3.0V
LOW BATTERY 3.3V
10. BUZZER
PIEZO type BUZZER
The oscillating frequency is 4.0kHz m 0.5kHz
XE-A302U
POWER OFF
In the model where a dry cell is used as the bakc-up battery, the CPU
monitors the battery voltage when it operates. When the voltage falls
below 2.8V, the RESET signal is supplied to prevent against malfunction of the CPU.
3 Reference voltage
NO BATTERY
MOMENTARY
STOP
HARDWARE DESCRIPTION
– 10 –
CHAPTER 5. DIAGNOSTIC PROGRAM
1. TEST ITEMS
2. DESCRIPTION OF EACH DIAG PROGRAM
The test items are as follows:
Code
1) DISPLAY BUZZER TEST
1 Key operation
Description
1)
100
Display buzzer test
2)
101
Key code
3)
102
Printer test
4)
104
Keyboard test
5)
105
Mode switch test
6)
106
Printer sensor test
7)
107
Clock display test
8)
110
Drawer 1 open & sensor test
9)
120
External RAM test
10)
121
CPU internal RAM test
11)
130
FLASH ROM test
12)
160
AD conversion port test
13)
500
RS232C test
100 3 RCPT/PO
2 Test procedure
OP display
PGM
D I S P BUZZER
0 1 2 3 4 5 6 7 8 9ABCDEF
4.5.6.7.8.9.0.
Rear display
The decimal point on the LED and the cursor on the LCD will shift
from the lower digit to the upper digit in steps of 1 digit (every 200
msec)
After that, all segments will turn on (about 1 sec)
These two modes are repeated.
At the same time, the buzzer sounds continuously.
3 Check:
A) Each position is correctly displayed.
*Starting DIAG.
B) The brightness of each number is uniform.
Mode switch: PGM
Key operation: Above code + “RCPT/PO” key
C) The buzzer sound is normal.
4 End of testing
You can exit the test mode by pressing any key. The following is
printed.
1 0 0
2) KEY CODE
1 Key operation
101 3 RCPT/PO
2 Test procedure
OP display
KEY
CODE
PGM
KEY CODE
3 Check:
KEY code : Every time a key is pressed, the hard code of that key
is displayed as a decimal number.
When a key is pressed twice or pressed in an incorrect
manner, --- will be displayed.
4 End of testing
You can exit the test mode by turning the mode switch to a position
other than the PGM mode. The printer prints as follows:
1 0 1
XE-A302U
DIAGNOSTIC PROGRAM
– 11 –
3) PRINTER TEST
5) MODE SWITCH TEST
1 Key operation
1 Key operation
105 3 RCPT/PO
102 3 RCPT/PO
2 Test procedure
2 Test procedure
OP display
OP display
PGM
P R I N T E R
MODE
1 0 5
PGM
SW
X
MODE: PGM_ _ _OP X/Z_REG_MGR_X1/Z1_X2/Z2__PGM
2 OFF 3
4
5
6
7
1
X : 1
ZZZZZZZZZZZZZZZZZZZZZZZZ
ZZZZZZZZZZZZZZZZZZZZZZZZ
ZZZZZZZZZZZZZZZZZZZZZZZZ
The above X must be read in the correct order. (If the contact is
open, 9 will be displayed.)
3 Check:
The display during testing and the content of the completion print.
3 lines of 24 digits are printed.
4 End of testing
1 0 5
When the test ends normally
At the receipt setting, the logo is also printed and the receipt is
issued.
3 Check:
When an error occurs:
E–~–
1 0 5
6) PRINTER SENSOR TEST
1 Key operation
The print is free from contamination, blur, and uneven density.
106 3 RCPT/PO
4 End of testing
2 Test procedure
The test will end automatically.
Check the status of the paper end sensor and head up sensor.
4) KEYBOARD TEST
OP display
H / P
1 0 6
1 Key operation
_ _ _ _104 3 RCPT/PO
2
KEY check sum code
X: 1 - Paper present
O - No paper
The keyboard is checked using the sum check code of the key code.
If the sum check code is not entered, the check is made using the
sum check code of the default keyboard arrangement.
The sum check data for each model is entered to the front 4 digits of
the DIAG code, and that data is compared with the key data added
until the final key (TL) is pressed.
Both data are the same, the test ends, printing the number given
below.
If both data are different, the printer prints the error message.
KEY
1 0 4
PGM
X Y
3 Check the following.
2 Test procedure
OP display
SENSOR
BOARD
Y: 1 - Thermal head down
O - Thermal head up
4 End of testing
You can exit the test mode by pressing any key and the printer prints
the following.
1 0 6
7) CLOCK TEST
1 Key operation
PGM
107 3 RCPT/PO
2 Test procedure
OP display
KEY CODE
T I ME R
CHECK
PGM
3 Check:
A) The content of completion print
Hour
Min.
Sec.
Blinks at an interval of 0.5 sec.
4 End of testing
When the test ends normally:
1 0 4
When an error occurs:
E – – xxxx
(xxxx is the value which added the key code.)
1 0 4
3 Check:
“–“ blinks and the clock counts up.
4 End of testing
Note: Calculation of key sum check data
Hard codes (hexadecimal number) at the position (excluding
feed key) where there is an input data contact are added.
However, the end key (TL) is not added.
This data to which hard codes have been added is converted into
a decimal number value, which will become the sum check data
that will be entered when DIAG is started.
XE-A302U
When any key is pressed, the date and time are printed and the test
mode will be terminated.
DIAGNOSTIC PROGRAM
– 12 –
YYMMDD
h h m m s s
year
month
hour
min.
day
sec.
107
8) DRAWER 1 OPEN & SENSOR TEST
10) CPU INTERNAL RAM TEST
1 Key operation
1 Key operation
121 3 RCPT/PO
110 3 RCPT/PO
2 Test procedure
2 Test procedure
OP display
DRAWER
1
The test program tests internal RAM (10 Kbytes) of the CPU.
PGM
X
The contents of memory must be stored before and after this test.
X : O = DRAWER OPENED
C = DRAWER CLOSED
RAM (00400H ~ 02BFFH area) is tested in the following procedure.
a) Store data in the test area.
3 Check:
b) Write “00H”
A) The drawer 1 opens normally.
c) Read and compare “00H” and then write “55H”
B) The sensor correctly indicates the status of the drawer 1.
d) Read and compare “55H” and then write “AAH”
*On the XE-A302U, “C” (CLOSED) is always displayed, because
the sensor is not equipped.
e) Read and compare “AAH”
4 End of testing
f) Restore stored data
You can exit the test mode by pressing any key. The printer prints
the following.
If an error occurs at a step, the error is printed.
If any error does not occur, the following addresses are checked
in turns.
1 1 0
Addresses to be checked:
9) EXTERNAL RAM TEST
01000H, 01001H, 01002H, 01004H, 01008H,
01010H, 01020H, 01040H, 01080H,
01100H, 01200H, 01400H, 01800H,
02000H
1 Key operation
120 3 RCPT/PO
2 Test procedure
OP display
The standard 512 Kbyte RAM is checked.
The contents of memory must be stored before and after this test.
RAM (Bank0: 08000H~7FFFFH area, Bank2: 28000H~2FFFFH area)
is tested in the following procedure:
CPU
1 2 1
RAM
3 Check:
The completion print.
a) Store data in the test areas
b) Write “00H”
4 End of testing
c) Read and compare “00H” and then write”55H”
The test program ends after printing.
d) Read and compare “55H” and then write “AAH”
When the test ends normally:
e) Read and compare “AAH”
When the test ends abnormally:
f) Restore stored data
Addresses to be checked:
RAM
1 2 0
x = 2: Address error
If an error occurs, the printer outputs the error message and the
address where the error has occurred in the area *****.
PGM
A) The completion print.
4 End of testing
The program ends after printing as follows:
When the test ends normally:
1 2 1
x = 1: Data error
3 Check:
When the test end abnormally: Ex – ~ –
*****
1 2 1
Ex – ~ –
*****
If an error occurs at a step, the error is printed.
If any error does not occur, the following addresses are checked in
turns.
08000H, 08001H, 08002H, 08004H, 08008H,
08010H, 08020H, 08040H, 08080H,
08100H, 08200H, 08400H, 08800H,
09000H, 0A000H, 0C000H, 10000H,
18000H, 20000H,
28000H (Bank0), 28000H (Bank2),
30000H, 40000H
OP display
PGM
1 2 0
1 2 0
x = 1: Data error, x = 2: Address error
When an error occurs, the printer outputs the error message and the
address where the error has occurred in the area *****.
XE-A302U
DIAGNOSTIC PROGRAM
– 13 –
11) FLASH ROM TEST
13) RS232C TEST
1 Key operation
Install the RS232C loopback connector.
130 3 RCPT/PO
1 Key operation
500 3
2 Test procedure
The test program checks that the checksum of the flash ROM
(Bank0: F80000H ~ FFFFFH).
RCPT/PO
2 Test procedure
The test program checks the control signals.
The lower two digits of the checksum should be 10H. (pending)
OUTPUT
OP display
F L A S H
1 3 0
ROM
PGM
3 Check:
The completion print.
4 End of testing
/DR
/CI
/CD
/CS
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
ON
ON
A loopback test of 256-byte data is performed between SD and RD.
DATA: $00 - $FF BAUD RATE: 9600 BPS
1 3 0
OP display
******** (Model name)
ROM
/RS
Data communication check
The test will automatically be terminated and the printer prints as follows:
When the test ends normally:
******** (Version)
When the test ends
abnormally:
1 3 0
E––~––
******** (Version)
RS 2 3 2C
5 0 0
T E S T
P GM
3 Check:
******** (Model name)
ROM
INPUT
/ER
The completion print.
4 End of testing
Completion print
RS TEST
OK
500
Error print
RS TEST
**NG**ERxx
500
12) AD CONVERSION PORT TEST
1 Key operation
160 3 RCPT/PO
xx Contents of error
2 Test procedure
01 ER DR error
The test program displays the voltage of each AD conversion port.
02 ER CI error
03 RS CD error
Display
04 RS CS error
OP display
OP display
OP display
T M
1 6 0
=
VRF
1 6 0
=
V P T E S T=
1 6 0
P GM
05 SD RD error
DATA error
06 SD RD error
DATA error/framing error
P GM
3. KEY CODE TABLE
P GM
XE-A302U
098 032 048 055 039 033 049 065 035 067 099 133 120 121 138 155
128 112 096 103 113 097 115 051 084 100 102 101 117 089 105 106 107
End of testing
064 119 135 130 129 131 116 132 118 134 085 104 136 073 122 090 123
080 087 082 066 081 083 068 086 150 070 069 072 088 153 154 074 139
144 071 146 050 145 147 148 054 038 053 149 152 056 057 058 075 091
016 151 034 017 001 019 052 036 022 021 037 040 025 041 042 059 027
000 007 023 018 002 003 020 004 006 005 024 008 009 010 026 043 011
CHECK SUM : 9038
XE-A302U
DIAGNOSTIC PROGRAM
– 14 –
CHAPTER 6. IPL FROM EP-ROM
The application program of the XE-A302 is written into the Flash ROM
in the CPU.
<IPL software on PC>
7) Copy the following files in "PosUtilityTool3" into the hard disk of PC.
Since the CPU supplied as a service part does not include the application program in it, the application program must be written when the
CPU is replaced with a new one.
To write the application program into the Flash ROM, connect the PC
and the XE-A302 with an RS-232C cable, and execute the PC software.
Postool3.exe
A302u.ROM
8) Boot "Postool3.exe."
9) Push [Add Files] in the screen.
*Use a D-Sub 9pin cross cable employed in conventional communication between ECR-ECR (See APPENDIX: RS232C CABLE).
10) Select the ROM DATA file. (File name: A302u.ROM)
[Related parts/Tool]
11) By pushing [Send] in the screen, the ROM data is sent from PC to
ECR.
The address counter is shown on PC and counts up.
PARTS NAME
PARTS CODE
CPU (without application
program)
VHI30624FGA-1
PosUtilityTool3
LOCATION
No.
12) After about 3-minuites, the message "Complete" is shown on PC.
IC5
Software
[IPL PROCEDURE]
1) Connect the XE-A302 and PC with an RS-232C cable.
<XE-A302 side>
2) Turn off the AC Power. (& remove batteries.)
3) Open the cabinet.
4) Change the IPL JUMPER PIN (SP1) to the rear side.
SP1
SP1
<After booting>
Default
When IPL
<Main PWB>
<After pushing "Add Files">
5) Close the cabinet.
*1 COM Port is selectable between COM1 and 2.
6) Turn on the AC Power.
(At this time, ECR looks like inactive, but ECR waits the ROM data
from PC.)
*2 For "Send Type", select "Direct".
*3 Do not select "Extra Setting".
<XE-A302 side>
12) Turn on the AC Power.
13) Open the cabinet.
14) Change the Jumper PIN (SP1) to the front side. (default position)
15) Close the cabinet.
16) Turn on the AC Power.
Master Reset will be performed. If not, power off the XE-A302, wait
1miniute and turn on the power again.
XE-A302U
IPL FROM EP-ROM
– 15 –
APPENDIX: RS232C CABLE
The RS-232C cable has the following internal connections:
(Equivalent to a cross cable used in the conventional connection of
ECR-ECR)
9PIN D-SUB
SD
RD
DTR
DSR
RTS
DCD
CTS
9PIN D-SUB
SD
3
3
SD
RD
2
2
RD
RTS
7
7
RTS
DCD
1
1
DCD
DTR
4
4
DTR
DSR
6
6
DSR
CTS
8
8
CTS
SG
5
5
SG
CHAPTER 7. CAUTION TO BE USED
WHEN CONNECTING
THE RS-232 CABLE
When connecting the RS-232 cable to the XE-A302, be sure to observe
the following condiiton:
Use RS-232 cable (with core) of accessories.
[This is a necessary to support the EMI (Electronics Magnetic
Interface).]
RS-232 CONNECTOR
Use RS-232 cable
(with core) of
accessories.
: TRANSMITTED DATA
: RECEIVED DATA
: DATA TERMINAL READY
: DATA SET READY
: REQUEST TO SEND
: DATA CARRIER DETECTOR
: CLEAR TO SEND
XE-A302U
CAUTION TO BE USED WHEN CONNECTING THE RS-232 CABLE
– 16 –
A
B
4
4
8
K
IC5
9
74LV00A
R
C26
/STB1
/LAT
VPON
IC4C
KIA431A
10
/ER2
4
4
4,5
C25
10K
10K
10K
C24
R30
8
3
VCC
C28
R70
C31
10K
R35
10K
R27
820
C50
47K
R78
7
C15
1
2
3
OUT
VDD
VSS
IC6
2
2
CD
NC
5
/RES
2200pF
C47
4
IC2
C18
10K
R8
2,3,4
P91
MDR
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
R67
10K
6
2
C51
330pF
CST12.0MTW
D7
D6
D5
D4
D3
D2
D1
D0
AN7
AN6
AN5
AN4
AN3
AN2
AN1
AVSS
AN0
VREF
AVCC
SIN4
M30620SAFP
C17
10K
R7
BR0
BR1
VDD
C41
100K
R71
3,4,6
3
R58
10K
1000pF
S-80928ANMP
SII
3
3
3
BR2
VREF
VDD
100
100
100
100
100
100
100
100
C16
10K
10K
LCDON
BLON
/LDCS
VBAT
TM
R44
R45
R46
R47
R48
R49
R50
R51
VPTEST
2
C14
R6
R5
150pF*8(C11-C18 )
C13
4
5
C12
4
C11
10K
10K
10K
10K
VDD
VREF
1000pF
R79
47K
INSTALL
C30
10K
R34
/RESET
<- OR ->
10K
R56
C29
10K
10K
10K
C27
R33
10K
10K
10K
R32
R26
R25
R24
R31
PLDATA
/PLWR
/PLRD
/PLCS
R29
VCC
ENA1
ENA2
INI1
INI2
3
3
3
3
R28
A7
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
R66
240
NOT INSTALL
C40
1000pF
VCC
6
100pF*8(C24-C31)
2,3
2,3
2,3
2,3
2,3
2,3
2,3
2,3
2
2
2
2
2,3
2
2,3
2,3
R4
R3
R2
VCC
R1
R68
10K
P91
P90
3.3K
R80
1
X3
3
C44
18pF
R74
330
1
2
3
4
FS781
XIN
XOUT
S1
LF
VDD
S0
FSOUT
VSS
8
7
6
5
(CST12.0MTW)
X2
R72
(0)
PLACE NEAR CPU!!!
IC7
C45
27pF
32.768KHz
X1
3
C
6
2
CPU
A
5
C1
5
R75
33
C42
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
0.1uF
+
10uF/10V,OS
C49
+
VCC
C43
C35
10K
VDD
10K
R39
R76
(2.2K)
4
3
B
Q1
R63
10K
D1
6
6
6
6
R73
VCC
3
2
470
(0.1uF)
B
+
4
3
BZ1
PIEZO BZ
MOTOR
/STB2
4
PCLK
4
A[0..19]
4
3
D[0..7]
DAT
2
(330pF)
C37
VCC
C46
R65
10K
330pF C36
R64
10K
K
+
(2048BH)
B
BZ2
(1SS355)
A
3,5
BUSY
/ER1
/CD1
/CTS1
/DR1
VCC
6
6
6
6
IPLON
RXD2
TXD2
6
RXD1
TXD1
/CS0
/CS1
/CS2
/CS3
/RS1
C232,3
30pF
2,3
2
2
2
2
2
2
2
2
2
2
2
2
6
C2412K
/POFF
2
47K
R62
/RDY
/RD
/WR
R42
10K
VCC
A18
A19
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
/RS2
10K
R77
(12K)
47K
R61
47K
/WP
47K
R60
47K
R23
10K
VCC
R22
VCC
R41
C10
10K
R40
BUZZER
4
R18
DRAWER1
BUSY
47K
R59
100pF
C9
10K
R17
/RDY
C8
10K
R16
VDD
R38
C7
10K
R15
100pF
C34
10K
R37
C6
10K
R14
0.1uF
100pF
C33
VDD
10K
R36
C21
150pF
C20
10uF/50V
C48
C5
10K
R13
150pF
CS0
CS1
CS2
CS3
WR
BHE
RD
CBCLK
HLDA
HOLD
ALE
CLKOUT
RTS0
CLK0
RXD0
TXD0
CLKS1
CLK1
RXD1
TXD1
C1A
1000pF
C4
10K
R12
150pF*10(C1-C10)
C3
10K
10K
C2
R11
R10
VCC
10K
R9
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
A2
A3
A4
A5
A6
A7
VSS
A8
VCC
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
SOUT4
CLK4
TB4IN
TB3IN
SOUT3
SIN3
CLK3
BYTE
CNVSS
XCIN
XCOUT
RESET
XOUT
VSS
XIN
VCC
NMI
INT2
INT1
INT0
TA4IN/U
TA4OUT/U
TB3IN
TBEOUT
TA2INW
TA2OUTW
TA1IN/V
TA1OUT/V
TB5IN
TB5OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
D
7
CHAPTER 8. CIRCUIT DIAGRAM AND PWB LAYOUT
8
C
– 17 –
1
CIRCUIT DIAGRAM AND PWB LAYOUT
E
XE-A302U
2
/CS2
/CS0
/CS1
RAMCS1
D0
D1
D2
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
16
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
RAM1
D7
D6
D5
D4
D3
RD
A10
CS
VCC
A15
A17
WR
A13
A8
A9
A11
21
20
19
18
17
24
23
22
32
31
30
29
28
27
26
25
5
4
74LV10A
IC3A
74LV00A
IC4B
6
*IC3 14pin:VDD
7pin:GND
1
2
13
12
4MSRAM HY628400ALLT2-70
GND
D0
D1
D2
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
IC1
2
A13
A8
A9
A11
74LV00A
IC4A
3
4
5
C38
0.1uF
74LV10A
IC3B
(10uF/50V)
+
VDD
3
C39
*IC4 14pin:VD D
7pin:GND
2
1
D7
D6
D5
D4
D3
A10
/RAM1
VDD
2
6
100pF
/RAM1
C32
R54
10k
VDD
FRA19/SRA15
FRA20/SRA17
2
2
R20
10K
VCC
1
100pF
C22
10K
R43
100pF
C19
VCC
1
/RD
/WR
1/7
2,3
2,3
A
B
C
D
XE-A302U
CIRCUIT DIAGRAM AND PWB LAYOUT
– 18 –
A
B
C
D
A[0..19]
1
1
1
8
BR2
BR1
BR0
FRA19/SRA15
FRA20/SRA17
1,3
1
1
D[0..7]
IPLON
1,3
1
IPLON
FLASH ROM
8
A19
A18
A17
A16
A15
1
2
3
4
5
6
7
8
9
10
2
7
1,3
1,3
1
1,3,4
VCC
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
OE/I9
/RD
/WR
/WP
/RES
20
19
18
17
16
15
14
13
12
11
C2A
10uF/50V
RAMCS2
RAMCS1
FRA18
FRA19/SRA15
FRA20/SRA17
/FRCS
/ROMCS
/RASPN2(NU )
VCC
3
R81
10K
VCC
S1 1 ROM COPY
1
IPL SW SSS312
PAL16V8H
CLK/I0
I1
I2
I3
I4
I5
I6
I7
I8
GND
IC10
0.1uF
C52
7
+
6
6
1
/RD
/WR
/WP
/RES
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
9
10
11
21
42
48
14
2
54
55
56
16
53
31
1
32
28
27
26
25
24
23
22
20
19
18
17
13
12
11
10
8
7
6
5
4
+
VCC
VCC
VCC
VPP
74LV10A
IC3C
1
/CS0
8
NC
NC
NC
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
(LH28F016SUT)
16M FLASH ROM
for XE-A202J/A212J
GND
GND
GND
CE0
CE1
OE
WE
WP
RP
RY/BY
BYTE
3/5
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
IC8
10uF/50V
C55
VCC
5
9
37
43
15
3
29
30
33
35
38
40
44
46
49
51
34
36
39
41
45
47
50
52
VCC
D0
D1
D2
D3
D4
D5
D6
D7
C56
N.U.(0.1uF)
5
5
4
R84
0
A18
A7
A6
A5
A4
A3
A2
A1
13
12
10
9
6
RAMCS2
/WP
R85
0
74LV00A
IC13B
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
IC13D
IC13C
A16
A15
A14
A13
A12
A11
A9
A8
/WR
/RES
+
0.1uF
C58
A17
GND
NC
NC
A10
DQ7
DQ6
DQ5
DQ4
VCC
VCC
NC
DQ3
DQ2
DQ1
DQ0
OE#
GND
CE#
A0
VCC
74LV00A
4
74LV00A
11
8
74LV00A
IC13 14Pin VDD
7Pin GND
2
1
IC13A
3
LH28F004SUT-NC80
for XE-A212V,XE-A302U/A
A16
A15
A14
A13
A12
A11
A9
A8
WE#
RP#
VPP
WP#
A18
A7
A6
A5
A4
A3
A2
A1
IC9
10uF/50V
C57
4
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
A10
A17
R89
10K
C62
0.1uF
/RAM2
VDD
D3
D2
D1
D0
D7
D6
D5
D4
VDD
C132
100pF
/FRCS
A0
/RD
VCC
3
BR0
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
10uF/50V
C53
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
1 FRA19/SRA15
C61
100pF
3
+
D0
D1
D2
R87
0
D0
D1
D2
VDD
0
R86
RAM2
D7
D6
D5
D4
D3
RD
A10
CS
VCC
A15
A17
WR
A13
A8
A9
A11
C59
C63
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2
VCC
A18/PGM
A17
A14
A13
A8
A9
A11
OE
A10
CE
D7
D6
D5
D4
D3
+
VCC
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
21
20
19
18
17
24
23
22
D7
D6
D5
D4
D3
VCC
D7
D6
D5
D4
D3
/RAM2
VDD
C60
220pF
32
31
30
29
28
27
26
25
C64
0.1uF
ROM SOCKET(32Pin)
VPP
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
GND
IC12
4MRAM HY628400ALLT
GND
D0
D1
D2
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
IC11
VCC
16
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
N.U. (100pF)
/RD
10uF/50V
C54
0.1uF
/WR
2
C65
100pF
A18
A17
A14
A13
A8
A9
A11
/RD
A10
1
/RD
A10
A15
A17
/WR
A13
A8
A9
A11
1
2/7
A
B
C
D
A
B
C
D
A3
1,2
1,2
1,2
8
/CI2
/CTS2
/DR2
/CD2
/CS3
1
6
6
6
6
/WR
A3
/CS3
74LV00A
1,2
13
12
IC4D
KS3
KS1
KS2
KS0
A0
A1
/WR
C71
0.1uF
KR8
KR9
KR10
KR11
A0
A1
11
1
2
3
4
5
6
7
8
VCC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
2
4
6
8
11
13
15
17
16
15
14
13
12
11
10
9
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
VCC
7
*IC19 2 0Pin:VCC
10Pin:GND
74HC244
1G
2G
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
IC19
74HC138
A
B
C
G2A
G2B
G1
Y7
GND
IC16
+ C70
10uF/50V
/LE0R 1
/LE1R 19
I/O I/F CIRCUIT
18
16
14
12
9
7
5
3
/LE2R
/LE3W
/LE0R
/LE1R
/LE0W
/LE1W
C84
100pF
C80
100pF
VCC
R104
10K
R100
10K
D0
D1
D2
D3
D0
D1
D2
D3
DB3
DB1
DB2
1
DB0
D[0..7]
VCC
C73
100pF
R95
10K
VCC
C72
100pF
R93
10K
VCC
1,2
D0
D1
D2
D3
D4
D5
D6
D7
0.1uF
6
C82
D2
D3
D0
D1
C79
0.1uF
D0
D1
D2
D3
D4
D5
D6
D7
C75
0.1uF
D2
D3
D0
D1
/LDCS
C69
0.1uF
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
VCC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
LE
VCC
1G
B1
B2
B3
B4
B5
B6
B7
B8
74HC245
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
IC21
74HC374
QE
Q0
D0
D1
Q1
Q2
D2
D3
Q3
GND
IC20
VCC
1G
B1
B2
B3
B4
B5
B6
B7
B8
VCC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
LE
+ C78
10uF/50V
74HC245
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
IC18
+ C74
10uF/50V
74HC374
QE
Q0
D0
D1
Q1
Q2
D2
D3
Q3
GND
IC15
+ C68
10uF/50V
20
19
18
17
16
15
14
13
12
11
20
19
18
17
16
15
14
13
12
11
20
19
18
17
16
15
14
13
12
11
20
19
18
17
16
15
14
13
12
11
D5
D4
D7
D6
D5
D4
D7
D6
/LE3R
VCC
VCC
/LE2R
VCC
/LE1W
VCC
5
KR0
KR1
KR2
KR3
KR4
KR5
KR6
KR7
RS
EE
R/W
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB4
DB6
DB5
DB7
5
1
DB[0..7]
BLON
BLON
VLED
1
1
2
IC17
4
DRAWER1
R97
10K
4
3
6
6
1
C134
LCDON
1,4,6
10uF/16V
5
4
BA00ASFP
+
7
K
R98
2.4KF
R96
5.6K
/S6
/S6
P91
K
C76
VDRW
D4
B
3
1SS355
1.8K
R101
1SS355
D21
11
1
F1
A
K
RS
R/W
EE
Q3
KRC111S
B
2SD2212
Q2
C77
R103
4.7K
R102
22K
(JUMPER)
+
/RES
FB1
22uF/16V
1SS355
C81
0.1uF
VCC
*IC14
VCC:20pin
GND:10pin
2
5
6
9
12
15
16
19
C66
0.1uF
/POFF
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
VCC
74HC273
CLK
CLR
D1
D2
D3
D4
D5
D6
D7
D8
IC14
D3 1SS355
A
K
D2
A
/LD0W
VCC
3
4
7
8
13
14
17
18
D0
D1
D2
D3
D4
D5
D6
D7
22uF/10V,OS
R99
12K
+
R94
10K
3
T400mA/250V
D[0..7]
LCDON
P91
A
8
C
E
– 19 –
C
CIRCUIT DIAGRAM AND PWB LAYOUT
E
XE-A302U
1
1
1
1
LCD I/F
/VON
(JUMPER)
FB3
(JUMPER)
FB2
D22
1SR154-400
PLDATA
/PLWR
/PLRD
/PLCS
F-LCD CN
B16B-XH-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN3
4
4
6
/RESET
/S6
/S2
/S3
/S4
/S9
2
FB1,2,3:JUMPER WIRE
-->PATTERN SHART
C83
0.1uF
RS
R/W
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
5
1
MDR
P91
a
b
c
d
e
f
g
dp
for 2 Line
GND
VCC
K
1,5
1
1,4,6
1,2,4
2
RIGHT-ANGLE CON
1
SK42 3
DRAWER1
DR CN(2Pin)5046-03A
3
2
1
CN6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
CN2
KEY I/F RELAY CN
40FE-BT-VK-N
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
3/7
FOR POP UP
& KEY I/F
STRAIGHT CON
DR CN(2Pin)5045-03A
STANDARD
3
2
1
CN5
R-LCD CN
1
2
3
4
5
6
CN4
LCD I/F
KR0
KR1
KR2
KR3
KR4
KR5
KR6
KR7
/S9
/VON
KR8
KR9
/S2
/S3
/S4
KR10
/S6
KR11
for Rear
P90
P91
a
b
c
d
e
f
g
dp
0.1uF
C67
VCC
KS3
KS2
KS1
KS0
/RESET
VLED
1
A
B
C
D
A
B
C
D
1,2,3
1
1
1
1
8
INI1
INI2
ENA1
ENA2
/STB2
/STB1
/RES
1
A
A
VCC
1SS355
1SS355
D20
K
K
D19
R19
1K
7
14
6
9
2
13
1
D18
1SS355
R168
47K
7
LB1838M
GND
GND
IN1
IN2
ENA1
ENA2
VCC
IC22
K
VCONT
OUT1
OUT2
OUT3
OUT4
VS1
VS2
G
8
3
5
12
10
4
11
R112
10K
NOT INSTALL
R109
(47K)
C86
0.1uF
R106
10KF
MAX 9A
R107
VP
10KF
C133
22u F/16V
A
VCC
VPTEST
PRINTER DRIVER
7
D
S
+
6
C91
10u F/50V
T0.5AL
VP
A
/A
B
/B
/S3
3
5
P91
K
A
FB4
4
4
Q8
KRC111S
HUPS
B
0.1uF
C90
Q7
2SK2731
G
EFCB32251 3TS
R111
20K
C92
330pF
R115
30KF
1SS355
A
VCC
D6
1SS355
K
D5
DAT
TM
1,3,6
/S4
3
1
(0)
R167
NOT INSTALL
C87
10u F/50V
P91
1
5
1,3,6
Q5
2SJ645
G
10K
R108
(JUMPER)
R110
5.6K
F3
Q6
2SK2731
6
S
D
3
MOTOR
0(EFCB322513TS)
FB5
VH
1
3
F2
10K
R114
PE
1K
R105
0.1uF
PCLK
1
0.1uF
1
2
CN7
C88
47uF
50V
2
VH
MO TOR CN
B2B-EH-A
2
R117
R116
2K
4.7K
/STB2
1
HUP S
/STB1
/LAT
1
1
+
2SD2212
Q4
(JUMPER)
B
C93
C85
T400mA/250 V
VP
C
E
8
D
S
– 20 –
C
CIRCUIT DIAGRAM AND PWB LAYOUT
E
XE-A302U
VCC
LEDK
PE
HUP S
VH
VH
CLK
/STB2
/STB1
VH
VH
/LAT
TH
A
/B
B
/A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
4/7
1
PRINTER CN
26FMN-BTK-A
CN12
0.1uF
C89
MOTOR
1
A
B
C
D
A
B
C
D
+
8
|LIN K
|CPU.S CH
|FROM.SCH
|IO.S CH
|MT53DRV.SCH
|RS232. SCH
|PRINTIF. SCH
ZD3
UDZ5.1B
(1uF /50V)
R142
6.2KF
3
2
3
IC25A
BA10393F
R140
10KF
9.1KF
3.9K
C104
R137
0
R136
R130
0
VO
POWER TRANS3
100V 50 Hz/60Hz
PS CN
B2P-VH
1
2
-
+
R139
7
/VON
P-OFF
1
56K
1
2
33
R146
IC25B
BA10393F
6
5
-
+
C109
0.1uF
C94
MYLOR
0.033uF
B
7
(WITH HOLD ER)
PS CN
VLED
R138
2.7K
VCC
+20% INPUT & NO LOAD: VOUT<=40V
SW DPS T
SW1
R129
VDRW
for JAP AN
+20% INPUT & NO LOAD: VOUT<=40V
PS CN
1
2
CN8
6
Q11
KRA106 S
C105
1000pF
/POFF
F6
T1.0A/250V
3 -
10K
R144
ZD4
NOT USE
UDZ5.1B
UDZ4.3B
ZD5
C106
220 uF/50V
1
IC26
A
A
5
KRC106S
51
R145
Q12
B
5
PQ1 CG2032FZ
5
2
PQ1 CG2032FZ
1SS355
A
1SS355
A
0.1uF
C98
VO
5
24K
KB
Q10
KRC106S
R124
0
6,8pin: N.C
LM2574HVN
IC23
7
Q9
KTD998
2
3
Q9:HEAT SINK
0.02uF(M)
C108
L:OFF
H,OPEN:ON
/VOFF
RB060L4 0
D15
220uH
IPEAK>2. 2A
L3
RB060L4 0
D14
180uH Ch ock
IPEAK>2.2A
L2
1SS355
D8
R123
TP1 VO
+ R121
22K
2
HEAT SINK
220 uF/50V
C102
K
+
+
1
R125
2.2K
D10
K
D9
K
+
C97
100 uF/50V
IC24:HEAT S INK
IC24
/VPOFF
/POFF
1,3
C95
4700uF/50V
VPON
1,3
2
(JUMPER)
1
J1
F5
T2.0A/250V
1,4
+ 1
BD1
CP301
, (S) T3.15A/250V
4
2
F4
UL,CSA T3.15AL/125V
1
POWER TRA NS1,2
for SEEG,SCA ,SUK V4/V7=220V-230V; V6=230-240 V
U/A=120V
SEC,SECL
5
1
6
1
4
2
3
C
E
C99
R143
560
R141
10K
1000uF
/16V
+
4
A
D11
VDRW
L1
3
C107
K
R134
1KF
3KF
R127
A
D12
R120
3.3KF
R119
18.0KF
3
for Ni-MH Ba
47uF
/16V
C101
330uF
/16V
VDRW:23.8V
+
2
TP2
VBAT2
C103
0.1uF
ttery
R131
150
R126
180
VCC + 5V
VLED +5.8V
+
K
C96
470 0uF/16V
+ C100
1SR159-200
VOUT=1.23X(1+R2/R1)
FMB-G24H
D7
63uH Chock
100 0uF/35V
+
VDRW
PTZ6.2A
ZD2
1SR159-20 0
VLED
R122
(5.6K)
R118
10(FUSE R)
with F USE
<- CLOSE TO
REGURATOR
4
K
A
POWER SUPPLY
K
A
8
4
8
4
1
2
ZD1
R135
(3.3M)
R132
(220)
1
2
CN13
R133
22K
R128
(100)
1
2
CN9
VBAT
VDD
VCC
1
1
5/7
1
CN9 CN13
X O
O X
Mn B AT CN
2B-XH-A-E(BLUE)
NOTE(3) :
R133
Ni-MH Battery NU
Dry Battery
100
FOR Dry Battery
D13
RB551-30
Ni-MH BAT CN
2B-XH-A-E(B LUE)
VP +7. 5V
PTZ9.1B
VP
K
A
7
E
C
K
A
4
3
4
3
K
8
K
A
C
E
K
CIRCUIT DIAGRAM AND PWB LAYOUT
A
K
A
– 21 –
A
XE-A302U
A
B
C
D
XE-A302U
CIRCUIT DIAGRAM AND PWB LAYOUT
– 22 –
A
B
C
D
8
M-T53II Printer I/F
8
7
7
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
6
JST 26FMN-BTK-A
TO MAIN PWB
CN1
6
5
5
4
VH
4
VDD
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
CN31
JST 27FMN-B YK-A
TO PRINTER
A
/B
B
/A
N.C
VH
VH
/LAT
TH
GND
GND
/STR1
VDD
/STR2
GND
GND
CLK
DI
VH
VH
N.C
N.C
VDD
LED(K)
PE
HUPS
3
2
2
1
1
6/7
A
B
C
D
TXD1
RXD 1
/CD1
/DR1
/CTS1
1
1
1
1
1
A
7
10K
A
/CI2
3 /CTS2
3 /DR2
3
3 /CD2
1 RXD 2
1 TXD2
1 /ER2
1 /RS2
1,3,4
8
10K
10K
10K
10K
R155 R156 R157 R158
VCC
P91
1SS355
B
10K
R161
VCC
Q13
KRC111S
10K
K
D17
10K
R149
10K
/S9
/ER1
1
10K
R148
R160
3
/RS1
1
R147
VCC
7
R159
B
C
D
RS232 DRIVER
8
6
16
0.1uF
24
19
22
26
5
8
21
20
6
7
15
14
12
24
19
22
26
5
8
21
20
6
C125
0.1uF
C123
0.1uF
7
16
C114
14
12
15
0.1uF
C112
6
IC28
HIN211
/EN
R5OUT
R4OUT
R3OUT
R2OUT
R1OUT
T4IN
T3IN
T2IN
T1IN
C2-
C2+
C1-
C1+
0.1uF
C121
IC27
HIN211
/EN
R5OUT
R4OUT
R3OUT
R2OUT
R1OUT
T4IN
T3IN
T2IN
T1IN
C2-
C2+
C1-
C1+
0.1uF
C110
VCC
11
VCC
10
VCC
10
11
VCC
– 23 –
10
E
C
CIRCUIT DIAGRAM AND PWB LAYOUT
10
XE-A302U
/SHDN
R5IN
R4IN
R3IN
R2IN
R1IN
T4OUT
T3OUT
T2OUT
T1OUT
V-
V+
/SHDN
R5IN
R4IN
R3IN
R2IN
R1IN
T4OUT
T3OUT
T2OUT
T1OUT
V-
V+
25
18
23
27
4
9
28
1
3
2
17
13
25
18
23
27
4
9
28
1
3
2
17
13
5
5
1000pF
C117
C128
1000pF* 5
C127
0.1uF
C126
C122
0.1uF
1000pF* 5
1000pF
C116
0.1uF
C115
C111
0.1uF
C129
+
VCC
4
C130
C124
10u F/50V
1000pF
C119
C113
10u F/50V
1000pF
C118
+
VCC
4
C131
F7
1
FB18
FB19
FB20
FB21
R163
R164
R165
R166
3
FB17
R162
FB16
FB15
FB14
EFCB322513TS X 8
T500mA/250 V
VCC
100ohm*5
1000pF
C120
FB13
R154
100ohm*5
FB11
FB12
R153
FB10
R151
R152
FB9
R150
FB8
FB7
FB6
EFCB322513TS X 8
3
2
SP1
JUMPER WIRE (CI)
3
CI1
2
2
DR2
RS2
CS2
CI2
CD2
RD2
SD2
ER2
7/7
1
2
3
4
5
6
7
8
9
CN1 1
1
RS232C CN(D-SUB 9Pin)
1
2
3
4
5
6
7
8
9
CN1 0
RS232C CN(D-SUB 9Pin)
CI/+5V
DR1
RS1
CS1
CD1
RD1
SD1
ER1
1
A
B
C
D
MAIN PWB LAYOUT
PWB LAYOUT
A side
XE-A302U
CIRCUIT DIAGRAM AND PWB LAYOUT
– 24 –
B side
XE-A302U
CIRCUIT DIAGRAM AND PWB LAYOUT
– 25 –
q
COPYRIGHT  2003 BY SHARP CORPORATION
All rights reserved.
Printed in Japan.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted.
In any form or by any means,
electronic, mechanical, photocopying, recording, or otherwise,
without prior written permission of the publisher.
SHARP CORPORATION
Digital Document Systems Group
Products Quality Assurance Department
Yamatokoriyama, Nara 639-1186, Japan
2003 August Printed in Japan t