EB Service Manual
1 2007/06/13
EB SERVICE MANUAL
EB Service Manual
2 2007/06/13
< Table of Contents >
1. Introduction ............................................................................................................................... 4
1.1. Preface .................................................................................................................................... 4
1.2. Precaution............................................................................................................................. 4
1.3. Specifications...................................................................................................................... 5
1.4. Dimension.............................................................................................................................. 6
1.5. Key & SYMBOLS ON DISPLAY.................................................................................... 7
1.6. Sealing Method................................................................................................................... 9
2. Calibration................................................................................................................................. 11
2.1. General Calibration........................................................................................................ 11
2.1.1. C4 Setting........................................................................................................... 12
2.1.1.1. C4-1 Setting................................................................. 12
2.1.1.2. C4-2 Setting................................................................. 12
2.1.1.3. C4-3 Setting................................................................. 12
2.1.1.4. C4-4 Setting................................................................. 13
2.1.1.5. C4-5 Setting................................................................. 13
2.1.2. SPAN Calibration Setting (C-3).............................................................. 14
2.1.3. Gravity Constant Value Setting (C-9)................................................ 14
2.1.4. Calibration factor Setting (C-10).......................................................... 15
2.1.5. Displaying Real A/D Value (C-5).......................................................... 15
2.1.6. Input Function Key Code (C-6).............................................................. 16
2.1.7. Percent Calibration (C-7).......................................................................... 17
2.1.8. Battery Calibration (C-8)........................................................................... 17
3. The Schematics and Diagram......................................................................................... 18
3.1. System Block Diagram................................................................................................. 18
3.2. Circuit Diagram ................................................................................................................ 19
3.2.1. Main and Power............................................................................................... 19
3.2.2. Display part ....................................................................................................... 20
3.2.3. Key Part ............................................................................................................... 21
4. Exploded View......................................................................................................................... 22
5. Load Cell drawing.................................................................................................................. 23
6. Part Location............................................................................................................................ 24
6.1. Main PCB (Top) ................................................................................................................ 24
6.2. Main PCB (Bottom) ........................................................................................................ 25
6.3. Rear Display PCB (Top)............................................................................................... 26
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6.4. Rear Display PCB (Bottom)....................................................................................... 26
6.5. Terminal PCB (Top) ....................................................................................................... 27
6.6. Terminal PCB (Bottom)............................................................................................... 27
6.7. Cal PCB (Top).................................................................................................................... 28
7. Error Messages & Solution............................................................................................... 29
8. Part List....................................................................................................................................... 30
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4 2007/06/13
1. Introduction
1.1. Preface
Thank you for purchasing of our CAS scale.
This scale has been designed with CAS reliability, under rigid quality control
and with outstanding performance.
WE hope that your departments enjoy with high quality of CAS product.
This manual will help you with proper operations and care of the EB series.
Please keep it handy for the future references.
1.2. Precaution
âĒ Make sure that you plug your scale into the proper power outlet.
âĒ Place the scale on a flat and stable surface.
âĒ Plug into a power outlet 30 minutes before operations.
âĒ Keep the scale away from strong EMI noises may cause incorrect weight readings.
âĒ This scale must be installed in a dry and liquid free environment.
âĒ Do not subject the scale to sudden temperature changes.
âĒ Do not subject the platter to sudden shocks.
âĒ If the scale is not properly level, please adjust the 4 legs at the bottom of the
scale (turn legs clockwise or counterclockwise) so as to center the bubble of the
leveling gauge inside the indicated circle.
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1.3. Specifications
EB -60 EB-150
Capacity / e 60 kg / 0.02 kg 150 kg / 0.5 kg
Internal 1 / 60,000 1 / 60,000
External 1/3,000 (Dual) 1/3,000 (Dual)
Tare 29.99 Kg 59.98 Kg
Display Weight(6), unit price(6), total price(6)
Indicators STABLE, ZERO, NET, Battery
Keys Number(0~9, 00), Clear, ZERO, TARE, PLU Save, PLU Call,
Battery, BL, X, -(cancel), +(add), SUM(TTP), Mode, Power ON/OFF
Functions
âĒ Direct PLU(24) / Indirect PLU(200)
âĒ Price computing scale
âĒ Low Battery Indication function
âĒ Auto Power Off, Auto BL off
âĒ Beep Sound Off Function
Weight 15kg
Power 6V 5 Ah Pb Battery or 9 V Adaptor
Op.Temperature - 10 °C ~ +40 °C
Options Rear Display, Stainless-tray, Adaptor, RS232
Minimum Voltage
Level The Battery About 5.7V
Operation time About 200HR
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1.4. Dimension
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1.5. Key & SYMBOLS ON DISPLAY
SYMBOLS DESCRIPTION
To adjust zero
Stable status
Tare on
Charge status
Display battery status
Back Light On status
KEYS FUNCTIONS
~ , To input all of numerical data
~ Direct PLU keys (24EA)
To save PLU
To call up PLU
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To clear data
To set zero
To set or clear tare value
To turn on & off the scale
To turn on & off the backlight
Display battery voltage(%)
To make several sales transaction by adding up
To make discount transaction
To multiply the same item when making sales transaction
To check total sales amount or finalize sales transaction
To soft key
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1.6. Sealing Method
[PLATE]
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[STICKER]
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2. Calibration
2.1. General Calibration
Pressing and holding calibration switch press [POWER] key to go to calibration mode.
User can move to other mode by using [ZERO] key in the calibration mode.
User also moves to other sub-modes for each mode by using [TARE] key.
Please simply follow below procedure to move to other mode.
(1) Calibration Mode: Pressing and holding âCalibration Switchâ press [POWER] key.
(2) It displays âCAL-0â after âCALâ, and it blinks the version of scale three times.
(3) Selecting menu: press [TARE].
(4) ENTER(Setting) : [TARE] key
MODE Function
CAL 1 Display normalized AD
CAL 2 Display Keypad infomation-
CAL 3
Weight Setting Mode
âUnLoadâ â [TARE] â
âMIDDâ â [TARE] after loading for 1/3 weight â
âFULLâ â [TARE] after loading for Full weight â
âMIDDâ â [TARE] after loading for 1/3 weight â âENDâ
CAL 4 Option Setting ( Table 1 ė°ļėĄ° )
CAL 5 Display filtered Raw AD
CAL 6 Function setting on each Key ( Table 2 ė°ļėĄ° )
CAL 7 % Calibration
CAL 8 Battery calibration
CAL 9 Gravity constant
CAL 10
Set calibration factor
âUnitâ î [TARE] î select 0, 1 (0:kg, 1: lb) î [TARE]
âCAPAâ î [TARE] î select capacity î [TARE]
âMCAPAâ î [TARE] î select mid-capacity î [TARE]
âW-dPâ î [TARE] î Select Decimal Point î [TARE]
â 1 d â î [TARE] î Select division î [TARE]
âDualâ î [TARE] î Enable dual interval (0:disable, 1:enable) î TARE
CAL 11 Set nation(00 : OIML , 01 : NTEP , 02: KOREA)
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< Modes >
2.1.1. C4 Setting
2.1.1.1. C4-1 Setting
35%
2 10%
13%
BIT 6~7 Initial Zero range
02%
0 Proper tare
BIT5 Tare Type
1 Full Tare
BIT4
3 (+), (-) Direction successive Tare
2 (-) Direction successive Tare
1 (+) Direction successive Tare
BIT 2~3
Successive tare
0One Time tare
BIT1
BIT0
2.1.1.2. C4-2 Setting
BIT7
BIT6 Use PLU Tare 1 Use
0Don't use
BIT5 Use PLU Name
1Use
0Don't use
BIT4 Use Daily Total
1Use
0Don't clear
BIT3 Clear Price
1Clear
0Don't clear
BIT2 Clear Tare
1Clear
0Don't use
BIT1 Use Euro
1Use
0No
BIT0 Power On Euro
1Yes
2.1.1.3. C4-3 Setting
0"." dot
BIT7 Dot Type
1 "," comma
BIT6 Use Preset tare 0 Don't use
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1Use
0Don't use
BIT5 Use Back light
1Use
0Don't use
BIT4 Use Head message
1Use
0Don't clear
BIT3 Use gram
1Clear
0Don't clear
BIT2 Use oz
1Clear
0Don't use
BIT1 Use lb
1Use
0No
BIT0 Use Kg
1Yes
2.1.1.4. C4-4 Setting
BIT7 X
BIT6 X
3 00, 25, 50, 75
2 00, 10, 20
10, 5
BIT 4~5 Price round off
0normal
BIT3 X
BIT2 X
3 1000/1
2 100/1
1 10/1
BIT 0~1 Unit / Price
01/1
2.1.1.5. C4-5 Setting
0Don't use
BIT7 Use Standby time
1Use
7 Special case
6 O.OOOOOO
BIT6 Price decimal point
5 O.OOOOO
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4 O.OOOO
3 O.OOO
2 O.OO
1O.O
0O
0Don't use
BIT3 Use Unit message
1Use
BIT2
3Don't use
2 DEP-50
1
BIT 0~1 Print type
0
2.1.2. SPAN Calibration Setting (C-3)
(1) Pressing and holding âCalibration Switchâ press [POWER] key.
After âCALâ message blinks three times and shows the version of scale, it displays âCAL 1â
message.
(2) Press [ZERO] to display âCAL-3â.
(3) Press [TARE] key and then it displays âzero â message.
(4) Press [TARE] key and then it displays âmidupâ message
(5) Load middle weight (ex:1/3 full capacity) on the platform
(6) Press [TARE] key and then it displays âspan â message
(7) Load full weight on the platform
(8) Press [TARE] key and then it displays âmiddnâ message
(9) Load middle weight (ex:1/3 full capacity) on the platform
(10) Press [TARE] key and then it display âCAL 3â message
2.1.3. Gravity Constant Value Setting (C-9)
Current gravitational Acceleration value is set to 9.7994 m/s2 .
(1) Pressing and holding âCalibration Switchâ press [POWER] key.
After âCALâ message blinks three times and shows the version of scale, it displays âCAL-1â
message.
(2) Press [ZERO] to display âC-9â.
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(3) Press [TARE] key, and then â G-1â message and â9.7994â will be shown. The first digit,â9â
will blink.
(4) Input a gravitational acceleration value by using [ZERO] key.
(5) Press [TARE] key, and then âG-2â message blinks.â9.7994â will be shown. The first
digit,â9â will blink.
(6) Input a gravitational acceleration value by using [ZERO] key.
(7) Press [TARE] key to save the gravitational acceleration value, and âC-9 â message will be
shown.
2.1.4. Calibration factor Setting (C-10)
(1) Pressing and holding âCalibration Switchâ press [POWER] key.
(2) After âCALâ message blinks three times and shows the version of scale, it displays âCAL-1â
message.
(3) Press [ZERO] to display âC-10â.
(4) Press [TARE] key, and then âUNIT â message and â0â will be shown. The first digit,â0â
will blink. It means calibration unit is âkgâ (0 : kg, 1 : lb)
(5) Input a calibration unit by using [ZERO] key.
(6) Press [TARE] key, and then âCAPAâ message blinks.â0015â will be shown. The first digit,â0â
will blink. It means a full-capability is â15 (calibration unit, kg or lb)â
(7) Input a capability by using [ZERO] key.
(8) Press [TARE] key, and then âMCAPAâ message blinks.â0005â will be shown. The first
digit,â0â will blink. It means a mid-capability is â05 (calibration unit, kg or lb)â
(9) Input a capability by using [ZERO] key.
(10)Press [TARE] key, and then âW-dP â message blinks.â3â will be shown. The first digit,â3â
will blink. It means a weight decimal point is â3 (will display 0.000)â
(11)Input a weight decimal point by using [ZERO] key.
(12) Press [TARE] key, and then â1d â message blinks.â0.005â will be shown. The third digit,â0â
will blink. It means a division is â0.005 (calibration unit, kg or lb)â
(13) Input a division by using [ZERO] key.
(14) Press [TARE] key, and then âdual â message blinks.â1â will be shown. The third digit,â1â
will blink. It means a dual interval is disable. (0 : disable, 1 : enable)â
(15) Input a dual interval enable by using [ZERO] key.
(16) Press [TARE] key to save the calibration factor, and âC-10 â message will be shown.
2.1.5. Displaying Real A/D Value (C-5)
Display Raw AD
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2.1.6. Input Function Key Code (C-6)
(1) Under the calibration switch ON press [POWER] key.
îū âCALâ message blinks three times.
(2) Press [ZERO] to display âC-6â.
(3) âE-SETâ display on the weight window.
(4) âXXâ message shows up on the total price window.
(5) Input âSoft Key Codeâ in the following table.
For first example, press â16â as SOFT KEY CODE and then press â+â key.
For second example, press â19â as SOFT KEY CODE and then âÎĢâ key.
(5) Press âCâ key to exit from âInput Soft Key Codeâ mode.
îš NOTE: User doesnât need MATRIX KEY CODES by inputting soft key code because MATRIX
KEY CODES are fixed in hardware.
* FIXED KEYS & THEIR SOFT KEY CODES
* CHANGEABLE KEYS & SOFT KEY CODES
FUNCTION SOFT KEY CODES REMARK
â00â 11
ADD 16
TTP CALL 18
PAY 19
MR 20
MW 21
CAN 22
MODE 23
1/2 24
1/4 61 25
PRE PACK 26
KEYS MATRIX KEY CODES SOFT KEY CODES
â0â through â9â 0 through 9 0 through 9
âCâ 10 10
âON/OFFâ 12 12
âZEROâ 13 13
âTAREâ 14 14
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KG/LB 27
TEST 28
HOLD 29
PRINT 30
NO FUNCTION 31
EURO 60
PERSENT TARE 62
TARE SAVE 63
BOTH SAVE 64
PERSET 65
MUL âXâ 66
PLU 32~59
2.1.7. Percent Calibration (C-7)
(1) Pressing and holding âCalibration Switchâ press [POWER] key.
After âCALâ message blinks three times and shows the version of scale, it displays âCAL 1â
message.
(2) Press [ZERO] to display âCAL-7â.
(3) Press [TARE] key and then it displays âper 0 â message. Select the percent value using the
[numeric] key. You can choose 10~90 percent.
(4) Press [TARE] key and then it displays âzeroâ message
(5) Press [TARE] key and then it displays âpspan â message
(6) Load choice percentage weight of full weight on the platform
(7) Press [TARE] key and then it displays âCAL 7â message
2.1.8. Battery Calibration (C-8)
(1) Pressing and holding âCalibration Switchâ press [POWER] key.
After âCALâ message blinks three times and shows the version of scale, it displays âCAL 1â
message.
(2) Press [ZERO] to display âCAL-8â.
(3) Press [TARE] key and then it displays voltage of battery.
(4) Change the jumper-pin of main PCB, âBATâ to â+5Vâ.
(5) Press [ZERO] key two times and then Press [-] key two times.
And then it display â500â
(6) Change the jumper-pin of main PCB, â+5Vâ to âBATâ.
(7) You can see the calibrated voltage of battery.
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3. The Schematics and Diagram
3.1. System Block Diagram
L/C
(BCO)
REAR
DISPLAY
LCD
Driver
RECHARGE LCD Display
POWER
(12V Adaptor)
EB
KEY
ONE MODULE
MAIN
BOARD
Pb BATTERY
(6V 5Ah)
RS232
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3.2. Circuit Diagram
3.2.1. Main and Power
C28
0.1uF
D1 1N5406
Charger
+5V
L1
1 2
BUZZER PART
R3
2k
0
CON_TX
Q3
KTA1504
R16
100
+5V
C23
0.1uF
C22
470uF/35V
+5V
L4
1 2
+
C20
100u/16v
Tx
U1 MC34063A
5
36
4
8
7
1
2
COMP
TCAPVCC
GND
DC
PK
SWC
SWE
CN10
1
2
Power_con
R13 4.7k
S-
+5V,BAT
ė í
Jumper
R17 R
CN8
1
2
3
EX-
C29
0.1uF
U3 LM7809
1 3
2
IN OUT
G
N
D
C27
0.1uF
BK1
LED_BL
C12 102,3kV
R9
100K
LED
R1
0.33 2W
U4A
max3232idbre4
6
8
5
13
2
4
9
1
5
12
7
3
14
1
10
11
1
6
V
-
RIN2
C2-
RIN1
V
+
C2+
ROUT2
G
N
D
ROUT1
DOUT2
C1-
DOUT1
C1+
DIN2
DIN1 V
_
C
C
R12
100K
C10 102,3kV
C11 102,3kV
D8
SS14
CN2
Adaptor
1
2
A_Vcc
S1
ON/OFF
CN5_FEMALE1
Pb BAT
1
2
3
R5
1k
Rx
CON_TX
R8
1k
RS232 DRIVER
PART
JP1
1
2
VDD
C24
102,3kV
C30
0.1uF
A_GND
Power PART
SIG+
<Doc> <RevCode>
EB (MODULE VER.)
A3
33Thursday , May 03, 2007
Title
Size Document Number Rev
Date: Sheet of
D7
4148
C21
0.1uF
SIG-
CON_RX
R11 10k
Q1 KTA1666
C
B
E
CHIP BEAD
R14
100k
BUZZER
EX+
D3
KDS184 21
3
BT1
3.3V
R10
10K RTC_Power
CN4 1
2
3
4
5
L13 220uH D10
SS14
R2
10K
Back light
C26
0.1uF
A_Vcc
CON_RX
ė ėėŽė
(+5V , Bat)
+5V
+5V
Pb 6V/5A
+5V
D4
KDS184
2
1
3
A_Vcc
CAL_SW
C2
0.1uF
L2
1 2
PSEN
+5V
BUZZER1
Q2A
2N2222
D9 SS14
Bat_chk
U11 XC6204C502MR
1
2
35
VIN
V
S
S
CE VOUT
C1
470uF/35V
D11 SS14
CN5_MALE1
BAT
1
2
3
L3
1 2
LOADCELL PART
+5V
R7
100k
F1 FUSE(F1.6A 250V)
CAL PART
+5V
R15
100K
0
CN3Power_SW
123
BL_con
R6
100k
PROGRAM PART
C4
470uF/35V
Power_chk
C3
470pF
S+
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3.2.2. Display part
COM7
SEG18
COM2
SEG22
SEG15
SEG8
SEG10
COM1
S
E
G
4SEG10
COM0
COM6
SEG18
SEG13
C
O
M
4
COM7
SEG17
COM6
Weight_DISPLAY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
S0
S1
S2
S3
S4
S5
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
S6
S7
S8
LCD DATA
S
E
G
2
4
SEG16
COM2
COM3
LCD WR
LCD RD
SEG11
SEG26
COM5
SEG21
S
E
G
6
SEG1
SEG17
SEG5
C
O
M
3SEG12
SEG4
COM5
COM6
COM2
S
E
G
2
2
<Doc> <RevCode>
EB - DISPLAY
A4
33Thursday, May 03, 2007
Title
Size Document Number Rev
Date: Sheet of
COM1
SEG7
COM7
LCD CS
COM1
SEG25
SEG12
SEG7
S
E
G
2
5
SEG11
COM4
S
E
G
0
COM5
UNIT_DISPLAY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
S0
S1
S2
S3
S4
S5
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
S6
S7
S8
S
E
G
2
1
SEG16
S
E
G
5
C
O
M
2
COM0
C
O
M
7
COM4
COM0
0
COM0
SEG24
+5V
C19
0.1u
SEG9
S
E
G
2
6
SEG3
SEG20
U2
HT1622-64 QFP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
2
0
33
34
35
49
50
51
5
2
2
12
22
32
42
52
62
72
82
93
03
13
2
36
37
38
39
40
41
42
43
44
45
46
47
48
5
3
5
4
5
5
5
6
5
7
5
8
5
9
6
0
6
1
6
2
6
3
6
4
CS
NC
RD
WR
DATA
VSS
OSCI
VDD
VLCD
IRQ
BZ
NC
BZ
T1
T2
T3
COM0
COM1
NC
C
O
M
2NC
NC
NC
NC
NC
NC
N
C
C
O
M
3
C
O
M
4
C
O
M
5
C
O
M
6
C
O
M
7
S
E
G
0
S
E
G
1
S
E
G
2
S
E
G
3
S
E
G
4
S
E
G
5
S
E
G
6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
S
E
G
2
0
S
E
G
2
1
S
E
G
2
2
S
E
G
2
3
S
E
G
2
4
S
E
G
2
5
S
E
G
2
6
S
E
G
2
7
S
E
G
2
8
S
E
G
2
9
S
E
G
3
0
S
E
G
3
1
SEG8
SEG6
C
O
M
6
COM4
S
E
G
1
S
E
G
2
3
R4 2.2k
SEG15
SEG14
S
E
G
3
COM3
SEG23
SEG9
S
E
G
2
SEG2
COM1
SEG0
S
E
G
2
0
SEG19
SEG14
C
O
M
5
COM3
SEG13
SEG19
Total_DISPLAY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
S0
S1
S2
S3
S4
S5
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
S6
S7
S8
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CAS EB Series User manual
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