ER-JR Service Manual
ER-JR SERVICE MANUAL
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ER-JR Service Manual
< 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. SealingMethod .................................................................................................................... 8 2. Calibration ................................................................................................................................. 10 2.1.
General Calibration ........................................................................................................ 10
2.1.1. C4 Setting ........................................................................................................... 11 2.1.1.1. C4-1 Setting................................................................. 11
3.
2.1.1.2.
C4-2 Setting................................................................. 11
2.1.1.3.
C4-3 Setting................................................................. 11
2.1.1.4.
C4-4 Setting................................................................. 12
2.1.1.5.
C4-5 Setting................................................................. 12
2.1.2.
SPAN Calibration Setting (C-3) .............................................................. 13
2.1.3.
Gravity Constant Value Setting (C-9) ................................................ 13
2.1.4.
Calibration factor Setting (C-10) .......................................................... 14
2.1.5.
Displaying Real A/D Value (C-5) .......................................................... 14
2.1.6.
Input Function Key Code (C-6) .............................................................. 15
2.1.7.
Percent Calibration (C-7) .......................................................................... 16
2.1.8. Battery Calibration (C-8) ........................................................................... 16 The Schematics and Diagram ......................................................................................... 18 3.1.
System Block Diagram ................................................................................................. 18
3.1.1.
Main ........................................................................................................................ 20
3.1.2.
Power Part & Back_Light........................................................................... 21
3.1.3.
Key Part ............................................................................................................... 22
4.
3.1.4. Display Driver(Main PCB) & REAR Display ...................................... 24 Exploded View Load Cell drawing ............................................................................... 26
4.
Load Cell drawing.................................................................................................................. 27
5.
Part Location ............................................................................................................................ 28 5.1.
Main PCB (Top) ................................................................................................................ 28
5.2.
Main PCB (Bottom) ........................................................................................................ 29
5.3.
Rear Display PCB (Top) ............................................................................................... 30 2
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ER-JR Service Manual
5.4. Rear Display PCB (Bottom) ....................................................................................... 30 6. Error Messages & Solution............................................................................................... 31 7.
Part List ....................................................................................................................................... 32
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ER-JR Service Manual
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 Make sure that you plug your scale into the proper power outlet. Place the scale on a flat and stable surface. Plug into a power outlet 30 minutes before operations. Keep the scale away from strong EMI noises may cause incorrect weight readings. This scale must be installed in a dry and liquid free environment. Do not subject the scale to sudden temperature changes. Do not subject the platter to sudden shocks. 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
Capacity
Internal Resolution External Resolution Display Symbols Interface Keys
ER-JR– 6
ER-JR – 15
ER-JR – 30
Dual Interval
Dual Interval
Dual Interval
3 kg / 0.001 kg
6 kg / 0.002 kg
15 kg / 0.005 kg
6 kg / 0.002 kg
15 kg / 0.005 kg
30 kg / 0.01 kg
1 / 60,000
1 / 60,000
1 / 60,000
1 / 3,000
1 / 3,000
1 / 3,000
Three LCDs with 6 digit Charge, stabilization, zero, tare, lower battery, NET backlight (LCD version only) RS – 232C (Printer Option) Number(0~9), Direct PLU(M1~M4),Clear, ZERO, TARE, *, +(add), Power ON/OFF Direct PLU(4) / Indirect PLU(200) Price computing scale
Function
Low Battery Indication function Auto Power Off, Auto BL off BL brightness control function
Product Size
304(W) X 324(D) X 112(H)
Platter Size
290(W) X 209(D)
Operating
- 10 C ~ +40 C
Temperature Power
12 V Adaptor or PB BATTERY (6V3.6AH/20HR)
Options
Recharge Battery, BACK LIGHT
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1.4. Dimension
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1.5. Key & SYMBOLS ON DISPLAY ■ Table
: Key Functions KEYS
FUNCTIONS
Numbers import
Direct PLU keys Function key, PLU restore, P mode (User s Set-up Mode enter) Push more than 2 second when using P mode To make several sales transaction by adding up
To Clear data
To set zero
To set up or clear tare value
To turn on/off the scale or backlight(LCD version only)
■ Table : Symbols on Display KEYS
FUNCTIONS
Weight steady
To adjust zero
Tare on
Backlight on
Low power warning
Used to call a toral price of add up transations
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1.6. SealingMethod
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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 “Calibration Switch” press [POWER] key. (2) It displays “CAL-0” after “CAL”, 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 infomationWeight Setting Mode “UnLoad” → [TARE] →
CAL 3
“MIDD” → [TARE] after loading for 1/3 weight → “FULL” → [TARE] after loading for Full weight → “MIDD” → [TARE] after loading for 1/3 weight → “END”
CAL 4
Option Setting ( Table 1 참조 )
CAL 5
Display filtered Raw AD
CAL 6
Function setting on each Key ( Table 2 참조 )
CAL 7
% Calibration
CAL 8
Battery calibration
CAL 9
Gravity constant Set calibration factor “Unit” [TARE] select 0, 1 (0:kg, 1: lb) [TARE] “CAPA” [TARE] select capacity [TARE]
CAL 10
“MCAPA” [TARE] select mid-capacity [TARE] “W-dP” [TARE] Select Decimal Point [TARE] “ 1 d ” [TARE] Select division [TARE] “Dual” [TARE] Enable dual interval (0:disable, 1:enable) TARE
CAL 11
Set nation(00 : OIML , 01 : NTEP , 02: KOREA) 10
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< Modes > 2.1.1. C4 Setting 2.1.1.1.
BIT 6~7
BIT5
C4-1 Setting
Initial Zero range
Tare Type
3
5%
2
10%
1
3%
0
2%
0
Proper tare
1
Full Tare
3
(+), (-) Direction successive Tare
2
(-) Direction successive Tare
1
(+) Direction successive Tare
0
One Time tare
1
Use
0
Don't use
1
Use
0
Don't use
1
Use
0
Don't clear
1
Clear
0
Don't clear
1
Clear
0
Don't use
1
Use
0
No
1
Yes
0
"." dot
1
"," comma
0
Don't use
BIT4
BIT 2~3
Successive tare
BIT1 BIT0
2.1.1.2.
C4-2 Setting
BIT7 BIT6
Use PLU Tare
BIT5
Use PLU Name
BIT4
Use Daily Total
BIT3
Clear Price
BIT2
Clear Tare
BIT1
Use Euro
BIT0
Power On Euro
2.1.1.3.
C4-3 Setting
BIT7
Dot Type
BIT6
Use Preset tare
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BIT5
Use Back light
BIT4
Use Head message
BIT3
Use gram
BIT2
Use oz
BIT1
Use lb
BIT0
Use Kg
2.1.1.4.
X
BIT6
X
Price round off
BIT3
X
BIT2
X
BIT 0~1
2.1.1.5.
Use
0
Don't use
1
Use
0
Don't use
1
Use
0
Don't clear
1
Clear
0
Don't clear
1
Clear
0
Don't use
1
Use
0
No
1
Yes
3
00, 25, 50, 75
2
00, 10, 20
1
0, 5
0
normal
3
1000/1
2
100/1
1
10/1
0
1/1
0
Don't use
1
Use
7
Special case
6
O.OOOOOO
C4-4 Setting
BIT7
BIT 4~5
1
Unit / Price
C4-5 Setting
BIT7
Use Standby time
BIT6
Price decimal point
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BIT3
Use Unit message
BIT2
Use Total price window over
BIT 0~1
Print type
5
O.OOOOO
4
O.OOOO
3
O.OOO
2
O.OO
1
O.O
0
O
0
Don't use
1
Use
0
Don't use
1
Use
3
Don't use
2
DEP-50
1 0
2.1.2. SPAN Calibration Setting (C-3) (1) Pressing and holding “Calibration Switch” press [POWER] key. After “CAL” message blinks three times and shows the version of scale, it displays “CAL 1” message. (2) Press [ZERO] to display “CAL-3”. (3) Press [TARE] key and then it displays “zero ” message. (4) Press [TARE] key and then it displays “midup” message (5) Load middle weight (ex:1/3 full capacity) on the platform (6) Press [TARE] key and then it displays “span ” message (7) Load full weight on the platform (8) Press [TARE] key and then it displays “middn” message (9) Load middle weight (ex:1/3 full capacity) on the platform (10) Press [TARE] key and then it display “CAL 3” 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 “Calibration Switch” press [POWER] key. After “CAL” message blinks three times and shows the version of scale, it displays “CAL-1” 13
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ER-JR Service Manual message. (2) Press [ZERO] to display “C-9”. (3) Press [TARE] key, and then “ G-1“ message and “9.7994” will be shown. The first digit,”9” will blink. (4) Input a gravitational acceleration value by using [ZERO] key. (5) Press [TARE] key, and then “G-2“ message blinks.“9.7994” will be shown. The first digit,”9” will blink. (6) Input a gravitational acceleration value by using [ZERO] key. (7) Press [TARE] key to save the gravitational acceleration value, and “C-9 ” message will be shown.
2.1.4. Calibration factor Setting (C-10) (1) Pressing and holding “Calibration Switch” press [POWER] key. (2) After “CAL” message blinks three times and shows the version of scale, it displays “CAL-1” message. (3) Press [ZERO] to display “C-10”. (4) Press [TARE] key, and then “UNIT “ message and “0” will be shown. The first digit,”0” will blink. It means calibration unit is “kg” (0 : kg, 1 : lb) (5) Input a calibration unit by using [ZERO] key. (6) Press [TARE] key, and then “CAPA“ message blinks.“0015” will be shown. The first digit,”0” will blink. It means a full-capability is “15 (calibration unit, kg or lb)” (7) Input a capability by using [ZERO] key. (8) Press [TARE] key, and then “MCAPA“ message blinks.“0005” will be shown. The first digit,”0” will blink. It means a mid-capability is “05 (calibration unit, kg or lb)” (9) Input a capability by using [ZERO] key. (10)Press [TARE] key, and then “W-dP “ message blinks.“3” will be shown. The first digit,”3” will blink. It means a weight decimal point is “3 (will display 0.000)” (11)Input a weight decimal point by using [ZERO] key. (12) Press [TARE] key, and then “1d “ message blinks.“0.005” will be shown. The third digit,”0” will blink. It means a division is “0.005 (calibration unit, kg or lb)” (13) Input a division by using [ZERO] key. (14) Press [TARE] key, and then “dual “ message blinks.“1” will be shown. The third digit,”1” will blink. It means a dual interval is disable. (0 : disable, 1 : enable)” (15) Input a dual interval enable by using [ZERO] key. (16) Press [TARE] key to save the calibration factor, and “C-10 ” 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.
“CAL” message blinks three times.
(2) Press [ZERO] to display “C-6”. (3) “E-SET” display on the weight window. (4) “XX” message shows up on the total price window. (5) Input “Soft Key Code” in the following table. For first example, press „16‟ as SOFT KEY CODE and then press „+‟ key. For second example, press „19‟ as SOFT KEY CODE and then „Σ‟ key. (5) Press „C‟ key to exit from “Input Soft Key Code” mode.
NOTE:
User doesn’t need MATRIX KEY CODES by inputting soft key code because MATRIX
KEY CODES are fixed in hardware. * FIXED KEYS & THEIR SOFT KEY CODES KEYS
MATRIX KEY CODES
SOFT KEY CODES
“0” through “9”
0 through 9
0 through 9
“C”
10
10
“ON/OFF”
12
12
“ZERO”
13
13
“TARE”
14
14
FUNCTION
SOFT KEY CODES
REMARK
“00”
11
ADD
16
TTP CALL
18
PAY
19
MR
20
MW
21
CAN
22
MODE
23
1/2
24
1/4
61
PRE PACK
26
* CHANGEABLE KEYS & SOFT KEY CODES
15
25
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ER-JR Service Manual KG/LB
27
TEST
28
HOLD
29
30
NO FUNCTION
31
EURO
60
PERSENT TARE
62
TARE SAVE
63
BOTH SAVE
64
PERSET
65
MUL ”X”
66
PLU
32~59
KEYS
MATRIX KEY CODES
SOFT KEY CODES
“0” through “9”
0 through 9
0 through 9
“C”
10
10
“ON/OFF”
12
12
“ZERO”
13
13
“TARE”
14
14
2.1.7. Percent Calibration (C-7) (1) Pressing and holding “Calibration Switch” press [POWER] key. After “CAL” message blinks three times and shows the version of scale, it displays “CAL 1” message. (2) Press [ZERO] to display “CAL-7”. (3) Press [TARE] key and then it displays “per 0 ” message. Select the percent value using the [numeric] key. You can choose 10~90 percent. (4) Press [TARE] key and then it displays “zero” message (5) Press [TARE] key and then it displays “pspan ” message (6) Load choice percentage weight of full weight on the platform (7) Press [TARE] key and then it displays “CAL 7” message
2.1.8. Battery Calibration (C-8) (1) Pressing and holding “Calibration Switch” press [POWER] key. After “CAL” message blinks three times and shows the version of scale, it displays “CAL 1” message. (2) Press [ZERO] to display “CAL-8”. (3) Press [TARE] key and then it displays voltage of battery. (4) Change the jumper-pin of main PCB, „BAT‟ to „+5V‟. 16
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ER-JR Service Manual (5) Press [ZERO] key two times and then Press [-] key two times. And then it display ‘500’ (6) Change the jumper-pin of main PCB, „+5V‟ to „BAT‟. (7) You can see the calibrated voltage of battery.
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3. The Schematics and Diagram 3.1. System Block Diagram
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ER-II MAIN BOARD
RS232
L/C
REAR DISPLAY
ONE MODULE KEY
LCD Driver
RECHARGE
POWER (12V Adaptor)
LCD Display
Pb BATTERY (6V 5Ah)
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ER-JR Service Manual Circuit Diagram
3.1.1. Main
Key Connector PART
MODULE CONNECTOR PART R16 10 2
A_GND
3
Bat_chk Power_chk Power_con Rx Tx Key _IN_1 Key _IN_2 Key _IN_3 Key _IN_4
P1.6
4
P1.7
5
RXD
6
TXD
7
P3.2
8
P3.3
9
P3.4
10
P3.5
11 12 13
LCD_CS LCD_DATA LCD_WR BUZZER BL_con
P2.0
14
P2.1
15
P2.2
16
P2.3
17
P1.1
U6
ONE_MODULE1 1
A_Vcc
18
A_Vcc
AIN+
A_GND
AIN-
Bat_chk
A_GND
P1.6
P1.0
P1,7
P0.0
Rx
P0.1
Tx
P0.2
P3.2
P0.3
P3.3
P0.4
P3.4
P0.5
P3.5
P0.6
P3.6
P0.7
P3.7
PSEN
P2.0
I2C_SDA
P2.1
I2C_CLK
P2.2
D_Vcc
P2.3
D_GND
P1.1
RTC_Power
36
AIN+
35
AIN-
34
A_GND
33
P1.0
32
P0.0
31
P0.1
CAL_SW Key _Out_1
5 6 7 8 D9 D10 D11 D12 D13 CN7
KDS160 KDS160 KDS160 KDS160 KDS160
27
1 2 3 4 5 6 7 8 9 10
26
11
30
P0.2
29
P0.3
28
P0.4
Key _Out_2 Key _Out_3 Key _Out_4 Key _Out_5
4 3 2 1
18 17 16 15 14 13 12 11
LL1 LL102
B0 B1 B2 B3 B4 B5 B6 B7
TP1 TP2
TP3 TP4
+5V C3 0.1uF
5 6 7 8
+5V
4 3 2 1 RL1
CN4 1 2 3 4 5
RL103
L4
C4 1 0.1uF19
21
C20 C21 C22 C23 0.001uF / 3kv 0.001uF / 3kv 0.001uF / 3kv 0.001uF / 3kv
D_Vcc 20 D_GND 19
A0 A1 A2 A3 A4 A5 A6 A7
B0 B1 B2 B3 B4 B5 B6 B7
18 17 16 15 14 13 12 11
L102S
L2
L102S
L102S
L7 L102S AIN+
L8 L102S
AINL5
U7 2 3 4 5 6 7 8 9
L1
L3 L102S
CN4
+5V
I2C_CLK
LOADCELL PART
+5V
74HC245/SO
PSEN 22
RL103 4 3 2 1 Key _Out_5 Key _Out_4 Key _Out_3 Key _Out_2 Key _Out_1
1 19
DIR OE L9 L102S
24 I2C_SDA
2 3 4 5 6 7 8 9
A0 A1 A2 A3 A4 A5 A6 A7
25
23
RL2 5 6 7 8
L102S
Key _IN_4 Key _IN_3 Key _IN_2 Key _IN_1
DIR OE 74HC245/SO +5V
5 6 7 8
RTC_Power
4 3 2 1 RL3
OneModule
RL103
POWER_KEY
PROGRAM PART
RS232 DRIVER PART
CAL PART
CN1 +5V R1 10k
C5 0.1uF C6 0.1uF C7 0.1uF
0
+5V
V+
1
Tx CON_TX
1 3
C1+ C1-
Q1 KTA1504
16
6
DIN1 DIN2 RIN1 RIN2
15
C8 0.1uF
11 10 13 8
GND
CAL S/W
V_CC
U1A S1
V-
CAL_SW
2
R2 4.7k
2
JP1
+5V CON_RX CON_TX
1 2 3
+5V
PSEN
BUZZER PART
BUZZER
BUZZER DOUT1 DOUT2 ROUT1 ROUT2 C2+ C2-
14 7 12 9 4 5
CON_RX Rx C9 0.1uF
max3232idbre4
Title
ER2 MAIN CIRCUIT Size B Date:
20
12/6/2007
Document Number
Rev
A
6100 - PER - 0002 Friday , June 29, 2007
Sheet
2
of
4
ER-JR Service Manual
3.1.2. Power Part & Back_Light RECHARGEABLE BATTERY CN2 Power SW
1 2
TP_LED1
1
LM7809
D1
IN
TP_BUZZER
TP_BUZZER
3
GND
U5
Power_LED
OUT
SS14 +9V
2
Charge
A_Vcc U2 R4 0.33 1W
LED
U3
1
DC
SWC
PK
SWE
1
L6
D5
1 2 3
5
VCC COMP
TCAP GND
SS14
3
C10 0.1uF
5
VOUT
+ C11
C12 470u/35
C13 0.1u
100u/16
SS14
D6 SS14 4
C14 470pF
C15 470u/35
CN3
C16 470u/35
D4
2
1N5406 6
CE
220uH D3
7 Adaptor
VIN
MC34063A 3
8
+5V
XC6204C502MR
VSS
TP_BAT
D2
2
TP_GND
C2 0.01uF / 3kv
C19 0.01uF / 3kv
+5V
R6 C17 0.1u
R5 10K
R7 2k
D8
+5V
Power_con
D7 1
전원사양(+5V ,
R8 100
Bat)
1N4004
100k
KDS184
2
Power_chk
3
TP_IN
R3 1k
SW1 SW Charge
R9 100k CN5_MALE1 CN5_FEMALE1 F1 BT1 Pb 6V/5A
3 2 1 BAT
FUSE POWER_KEY
3 2 1 Pb BAT
Bat_chk R10 1k
Power PART
TP_BL
+5V
Q2
KTA1666 BackLight
C18 100u/16 R11 100k
R12 20k
Q3 2N2222
R13 10k BL_con
R14 100k
Back_Light
Title
ER2 POWER Size A3 Date:
21
12/6/2007
Document Number
Rev A
6100 - PER - 0002 Friday , June 29, 2007
Sheet
3
of
4
ER-JR Service Manual
3.1.3. Key Part
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ER-JR Service Manual 0
5
M1
C
1
6
M2
ZERO
2
7
M3
TARE
3
8
M4
ADD
4
9
CON1 1 2 3 4 5 6 7 8 9 10
KEY _OUT1 KEY _OUT2 KEY _OUT3 KEY _OUT4 KEY _OUT5 KEY _IN1 KEY _IN2 KEY _IN3 KEY _IN4 KEY _POWER
11
GND
*
ON/OFF
Title
ER2 KEY CIRCUIT (MEMBRANE) Size A Date:
23
Document Number
Rev 0
2101 - E20 - 0030 Tuesday , May 29, 2007
12/6/2007
Sheet
1
of
4
ER-JR Service Manual
3.1.4. Display Driver(Main PCB) & REAR Display
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ER-JR Service Manual SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20
DISPLAY DRIVER(MAIN PCB)
FRONT DISPLAY (MAIN PCB)
LCD WR LCD DATA
R15 2.2k
CS NC RD WR DATA VSS OSCI VDD VLCD IRQ BZ NC BZ T1 T2 T3 COM0 COM1 NC
NC NC NC SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 NC NC NC
HT1622-64 QFP
51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7
20 21 22 23 24 25 26 27 28 29 30 31 32
C1 0.1uF
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
COM2 COM3 COM4 COM5 COM6 COM7 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6
+5V
LCD_CS
SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 NC
64 63 62 61 60 59 58 57 56 55 54 53 52
U4
COM4 COM6 SEG12 SEG14 SEG10 BACKLIGHT
SEG0 SEG2 SEG4 SEG6 SEG8 SEG16 SEG18 COM0 COM2 SEG28 SEG25 SEG30 SEG31 SEG26 SEG27
SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 COM7 COM6 COM5 COM4 COM3 COM2 COM1 COM0
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
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
COM5 COM7 SEG13 SEG15 SEG11 BACKLIGHT
SEG1 SEG3 SEG5 SEG7 SEG9 SEG17 SEG19 COM1 COM3 SEG20 SEG21 SEG22 SEG23 SEG24 SEG29
S16 S17 S18 S19 S20 COM0 COM1 COM2 COM3 S28 S21 S22 S23 S24 S25 S29 S30 S31 S26 S27
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
SEG16 SEG17 SEG18 SEG19 SEG20 COM0 COM1 COM2 COM3 SEG28 SEG21 SEG22 SEG23 SEG24 SEG25 SEG29 SEG30 SEG31 SEG26 SEG27
S0 S1 S2 S3 S4 COM4 COM5 COM6 COM7 S12 S5 S6 S7 S8 S9 S13 S14 S15 S10 S11
WEIGHT_DISPLAY
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
SEG0 SEG1 SEG2 SEG3 SEG4 COM4 COM5 COM6 COM7 SEG12 SEG5 SEG6 SEG7 SEG8 SEG9 SEG13 SEG14 SEG15 SEG10 SEG11
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
SEG0 SEG1 SEG2 SEG3 SEG4 COM0 COM1 COM2 COM3 SEG12 SEG5 SEG6 SEG7 SEG8 SEG9 SEG13 SEG14 SEG15 SEG10 SEG11
S0 S1 S2 S3 S4 COM0 COM1 COM2 COM3 S12 S5 S6 S7 S8 S9 S13 S14 S15 S10 S11 PRICE_DISPLAY
UNIT_DISPLAY
CN6 REAR DISPLAY CONNECTOR (MAIN PCB)
REAR DISPLAY PCB
COM4 COM6 SEG12 SEG14 SEG10 BACKLIGHT
SEG0 SEG2 SEG4 SEG6 SEG8 SEG16 SEG18 COM0 COM2 SEG28 SEG25 SEG30 SEG31 SEG26 SEG27
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
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
COM5 COM7 SEG13 SEG15 SEG11 BACKLIGHT
S16 S17 S18 S19 S20 COM0 COM1 COM2 COM3 S28 S21 S22 S23 S24 S25 S29 S30 S31 S26 S27
SEG1 SEG3 SEG5 SEG7 SEG9 SEG17 SEG19 COM1 COM3 SEG20 SEG21 SEG22 SEG23 SEG24 SEG29
WEIGHT_DISPLAY
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
SEG16 SEG17 SEG18 SEG19 SEG20 COM0 COM1 COM2 COM3 SEG28 SEG21 SEG22 SEG23 SEG24 SEG25 SEG29 SEG30 SEG31 SEG26 SEG27
S0 S1 S2 S3 S4 COM4 COM5 COM6 COM7 S12 S5 S6 S7 S8 S9 S13 S14 S15 S10 S11
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
SEG0 SEG1 SEG2 SEG3 SEG4 COM4 COM5 COM6 COM7 SEG12 SEG5 SEG6 SEG7 SEG8 SEG9 SEG13 SEG14 SEG15 SEG10 SEG11
SEG0 SEG1 SEG2 SEG3 SEG4 COM0 COM1 COM2 COM3 SEG12 SEG5 SEG6 SEG7 SEG8 SEG9 SEG13 SEG14 SEG15 SEG10 SEG11
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
S0 S1 S2 S3 S4 COM0 COM1 COM2 COM3 S12 S5 S6 S7 S8 S9 S13 S14 S15 S10 S11 PRICE_DISPLAY
UNIT_DISPLAY
CN8 REAR DISPLAY CONNECTOR(REAR PCB)
Title
ER2 DISPLAY (REAR) Size A3 Date:
25
12/6/2007
Document Number
Rev A
6110 - PER - 0002 Tuesday , May 29, 2007
Sheet
4
of
4
ER-JR Service Manual
4. Exploded View
26
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Load Cell drawing
27
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ER-JR Service Manual
5. Part Location 5.1. Main PCB (Top)
28
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5.2. Main PCB (Bottom)
29
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5.3. Rear Display PCB (Top)
5.4. Rear Display PCB (Bottom)
30
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ER-JR Service Manual
6. Error Messages & Solution Error Message
Description
Solution
on Display "Err 0" "Err 1" "Err 2"
The "Err 0" occurs when scale is not stable.
Remove unstable facts.
The "Err 1" occurs when a current zero point has
Please call your CAS
shifted from the last span calibration.
dealer.
The "Err 2" is not a real error. Only it prompts
Please call your CAS
return CAL switch to the normal position.
dealer. Please remove the
"Err 3"
The "Err 3" is an overload error.
"Err 4"
The "Err 4" is leakage of payment.
"Err 5"
The "Err 5" means there is already tare.
Remove the tare.
The "Err 6" means total price summation is
Please change unit price
over.
or remove some weight.
"Err 6" "Err 7"
The "Err 7" means total price is over.
"Err 8"
The "Err 8" means Euro rating price is over.
weight. Scale needs more payment.
Please change unit price or remove some weight. Please change unit price or change euro rate.
The "Err 11" means a writing error of the internal “Err 11”
nonvolatile memory. To recognize this error, be
If it still has "Err 11",
sure to check the voltage on the circuit and do
replace the digital module.
calibration procedures. The "Err 12" warns that the scale has lost the “Err 12”
parameters for weighing regulations or has lost the factors for a digital span calculation.
Enter each condition codes again (?). Please try a span calibration again if still not fixed. Please try to find out which
“Err 13”
The "Err 13" means the soft key code is broken.
key lost soft key code and then input this code again.
“Err 14” “Err 15”
The "Err 14" means calibration range is not
Please call your CAS
correct.
dealer.
The "Err 15" means 1/2 or 1/4 unit price is over.
Please change unit price
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ER-JR Service Manual
7. Part List 1.1 MAIN PCB ASS'Y [110E20EMAPUN0101] No
Part Name
Specification
MAIN PCB ASS'Y
ER2-15CB(LCD)
1
PCB-MAIN
6100-PER-0001-A(ER LCD)
2
ONE MODULE
ONE MODULE
3
IC(REGULATOR)
KA7809A(D-PACK)
4
IC(REGULATOR)
5
Part Number
Q'ty 1
6100PER00010
Remark MAIN PCB ASS'Y
1 1
ONE MODULE1
6220IS078090
1
U5
XC6204C502MR(5.0V)
6220IS0C5020
1
U2
IC(LCD DRIVER)
HOLTEX HT1622 (ERS-LCD)
6224I0016220
1
U4
6
IC(DC DC CONVERTER)
MC34063AD
6242I003406A
1
U3
7
IC(C MOS)
74HC245D(LP-II)
6236IS00245A
2
U6,7
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8
IC(INTERFACE)
MAX3232(3.3V)(SMD)
6232IS032320
1
U1
9
TRANSISTOR CHIP
KTA1504 SY
6281I0015040
1
Q1
10
TRANSISTOR CHIP
KTA1666
6281I0016660
1
Q2
11
TRANSISTOR CHIP
2N2222AS
6281I0022220
1
Q3
12
DIODE POWER
1N5819(SMD)
6291IS058190
4
D1,3,4,6
13
DIODE-CHIP
KDS184
6294ICP01840
1
D8
14
DIODE-CHIP
KDS160(SMD)
6294ICP01600
5
D9,10,11,12,13
15
DIODE-SWITCHING
PMLL4148L(LP-CONT')
6294ISW4148A
1
D7
16
DIODE-POWER
1N5406
6291IP054060
1
D5
17
RESISTOR 2W
CFR 0.33Ω (±5%)
6512CJ000033
1
R4
18
RESISTOR-CHIP 1/10W
RR1220P-103D(10K)
6527ID301000
3
R1,5,13
19
RESISTOR-CHIP 1/10W
RR1220P-472D(4.7 ㏀)
6527ID300470
1
R2
33
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20
RESISTOR-CHIP 1/10W
RR1220P-102D(1K)
6527ID300100
2
R3,10
21
RESISTOR-CHIP 1/10W
RR1220P-104D(100K)
6527ID310000
4
R6,9,11,14
22
RESISTOR-CHIP 1/10W
RR1220P-202D(2 ㏀)
6527ID300200
1
R7
23
RESISTOR-CHIP 1/10W
RR1220P-101D(100Ω)
6527ID010000
1
R8
24
RESISTOR-CHIP 1/10W
RR1220P-100D(10Ω)
6527ID001000
1
R16
25
RESISTOR-CHIP 1/10W
RR1220P-203D(20K)
6527ID302000
1
R12
26
RESISTOR-CHIP 1/10W
RR1220P-222D(2.2K)
6527ID300220
1
R15
27
RESISTOR-CHIP-ARRAY
RP164P103J(=1608 10kΩ X 4PCS)
6598IJ301000
3
RL1,2,3
28
INDUCTANCE
HB-1M2012-102JT(TP2,LP2,DBB)
6670T0001020
8
L1,2,3,4,5,7,8,9
29
INDUCTANCE
220uH(NT SERIES)
6670T0102200
1
L6
30
CONDENSER-CERAMIC
0.01uF/3KV
6710CAP0103B
1
C2,19
31
CONDENSER-CERAMIC
0.001uF/3KV
4
C19,20,21,23
34
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32
CONDENSER-CHIP
CL21F 471KBNC
6712CHP04710
1
C14
33
CONDENSER-CHIP
CL21F 104KBNC
6712CHP01040
10
C1,3,4,5,6,7,8,9,10,13,17
34
CONDENSER-ELECTRIC
100uF/16V
6704C1601000
2
C11, C18
35
CONDENSER-ELECTRIC
470uF/35V
6704C3504700
3
C12, C15, C16
36
CONNECTOR WIRE
D9P*3P*230mm(ER-2)
7840W0012230
1
RS232 WIRE
37
CONNECTOR(WAFER)
03-5267
7805CCN67030
1
CN3
38
CONNECTOR(WAFER)
5273-02 (LPH03-02)
7804CCN73020
1
CN2
39
CONNECTOR(WAFER)
5273-03 (LPH03-03)
7804CCN73030
2
CN1,5
40
SOCKET CONNECTOR
5332-50P
7813C000050B
1
CN6
41
FPC-CONNECTOR
FCZ254-11A
7807CFP0011A
1
CN7
42
CUSHION-VFD
30*20*2T
2631A0000010
3
CUSHION
43
FERRITE
1
LL1
BEAD
SMD MZA3216R102A(TDK) 35
6810F0001020 12/6/2007
ER-JR Service Manual
ARRAY 44
FUSE
1.6A/250V ø5 UL,S,VDE,BSI(유) fast blow type
7620S0516000
1
F1
45
FUSE HOLDER
GF-205B(EXP-300L)
7630S0002050
1
FUSE1
46
JUMPER
2PIN
7821CJM00020
3
JP1,2,3
47
LCD
PT-215(CHINA)ER-2
7212D0002150
3
LCD1,2,3
48
LED BACK LIGHT
MD-2766-K(CHINA)ER-2
7224D0027660
3
LED_BL 1,2,3
49
LED LAMP
ø5-RED
7232DR00005A
1
D2
50
PIEZO BUZZER
HYR-1407A(ER-2)
7002Z0014070
1
BUZZER
51
TACT S/W
11902(DJTA-1102)
7600STA19020
1
S1 (CAL SW)
1.2 REAR DISPLAY PCB ASS'Y [110E20ERDPUN0101]
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No
Part Name
Specification
Part Number
Q'ty
Remark REAR DISPLAY PCB
REAR DISPLAY PCB ASS'Y
ER2-15CB(LCD)
110E20ERDPUN0101
1 ASS'Y
1
CUSHION-VFD
30*20*2T
2631A0000010
3
CUSHION
2
PCB-DISPLAY
6110PER2001A (ER2-ONEMODULE)
6110PER2001A
1
REAR PCB
3
LCD
PT-215(CHINA)ER-2
7212D0002150
3
LCD1,2,3
4
LED BACK LIGHT
MD-2766-K(CHINA)ER-2
7224D0027660
3
LED_BL 1,2,3
5
FLAT CABLE CONNECTOR
50P*50P*500mm(ER-2)
7850W00B0500
1
CN1
37
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