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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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ER-JR Service Manual

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

PRINT

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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ER-JR Service Manual

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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ER-JR Service Manual

5.2. Main PCB (Bottom)

29

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ER-JR Service Manual

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

31

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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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ER-JR Service Manual

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

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ER-JR Service Manual

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

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ER-JR Service Manual

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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ER-JR Service Manual

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

12/6/2007

Manual servicios Balanzas CAS ER junior  

Balanza cas modelo er junior 30 kg

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