Vetek JIK-6 Series User manual

Service Manual Indicator JIK-6 Page 1
Chapter I Basic Introduction
1-1 Dimension------------------------------------------------------------------------------- 1
1-2 Cross-reference List of Characters--------------------------------------------------- 1
1-3 Product Specification Sheet----------------------------------------------------------- 2
Chapter II Parameter Function Setting
2-1 General Parameter Setting------------------------------------------------------------ 3
2-2 Advanced Parameter Setting--------------------------------------------------------
--
5
2-3 Weighing Capacity, Sensed Weight Setting and Weight Calibration------------ 7
Chapter III Various Assemblies and Relevant Illustrations
3-1 Back Cover Assembly and Disassembly-------------------------------------------- 9
3-2 Installation of Additional Board------------------------------------------------------ 10
3-3 Wiring Cross-reference Chart--------------------------------------------------------- 11
3-4 Illustration of Contacts of Additional Board---------------------------------------- 12
Chapter IV Troubleshooting
4-1 Preliminary Examination-------------------------------------------------------------- 13
4-2 Error Message and Troubleshooting----------------------------------------------
---
13
4-3 Summary Table of Error Message-------------------------------------------------
---
16
Chapter V Structural Part of Platform Scale
5-1 Connection of Metal Connectors---------------------------------------------------
---
17
5-2 L/C Replacement Process------------------------------------------------------------
-
17
5-3 L/C-related Technology--------------------------------------------------------------
--
19
Chapter VI Exploded Drawing and Cross-reference List of Parts
6-1 JIK 6-CAB ------------------------------------------------------------------------------ 20
6-2 JIK 6-CSB ------------------------------------------------------------------------------ 21
6-3 JIK 6-CSN ------------------------------------------------------------------------------ 22
Vetek AB
Hantverksvägen 15, 76493 Väddö - Sweden
Tel_ [phone], [email protected], www.vetek.com
Service_Manual_JIK-6_V1

Service Manual Indicator JIK-6 Page 2
Chapter I Basic Introduction
1-1. Dimension
1-2. Cross-reference List of Characters
0 1 2 3 4 5 6 7 8 9
A B C D E F G H I J
K L M N O P Q R S T
U V W X Y Z

Service Manual Indicator JIK-6 Page 3
1-3. Product Specification Sheet
Case Shell Material ABS plastics S/S stainless steel
Waterproof Grade N/A IP67
Dimension 230 * 150 * 90 mm
Display 6-digit 30mm high & 3-digit 10mm high LCD (including EL
backlight)
Unit Selection Kg or g, lb, Taiwan jin, liang, HK jin, liang, pcs, %
Power Supply Adaptor 9V/1A, Battery 6V/3Ah
Operating Environment -5 ~ 40
Storage Environment -20 ~ 60
Certification OIML (incl. CE)
Weight (incl. battery) Approx. 2.5kg Approx. 2.8 kg
Display-LCD S/S flat backboard (excl. battery)
6-digit 20mm high & 3-digit 9mm high - 7-Segment display
Options Display-LED Power Supply Adaptor 9V/1A (battery 6V/3Ah also available for
choice)
Model Basic Model Advanced Model
Conversion Mode ∆- Σ
Internal
Resolution Range About 1,000,000 counts About 5,000,000 counts
3,000d(OIML) 6,000d(OIML)
External
Resolution
Precision Max. 30,000d(non-OIML) Max. 60,000d(non-OIML)
Analogue/
Digital
Converter
Conversion Rate 10 times/sec.
System Linearity Error Within 0.01% of Full Load
Zero Drift ±10 ppm/ ±6 ppm/
Temperatur
e Factors Linear Drift ±3 ppm/ ±1.5 ppm/
Circuit Voltage 5VDC ± 6%, 120mA (max. 8 * 350Ω)
Applicable Range -2 ~ 18mV -10 ~ 40mV
2uV/d (OIML) 1uV/d (OIML)
Weight
Sensor Input Sensitivity Over 0.2uV/d (non-OIML) Over 0.1uV/d (non-OIML)
Calibration Options
Unit Selection Kg, g, lb Model Code Spec.
Weight
Calibration
Setting Point
Single-point or three-
point OP1 RELAY
Sensed Weight Selectable from 1, 2, 5
Basic/advan
ced model OP2 RS232 (RTC)
OP3
RS232-2port
(RTC)
Advanced
model OP4 Dual channel

Service Manual Indicator JIK-6 Page 4
Chapter II Parameter Function Setting
2-1 General Parameter Setting
(1) How to enter and change general parameter setting
Step I: Power on while holding down key or hold down key for about 3 seconds while power is on with
zero load.
Step II: Select parameter functions by pressing or key, and select parameter setting by pressing or
key.
Step III: After setting is completed, press key to return to weighing mode.
(2) General parameter function descriptions
Item Function Display Description
: Automatic power-off function off
: Automatic power-off after 5 minutes
: Automatic power-off after 10 minutes
: Automatic power-off after 30 minutes
:Automatic power-off after 60 minutes
PO
Automatic Power-off
Overview: The scale
will be powered off
automatically after
elapse of the set time
when powered on but
not in use. :Automatic power-off after 90 minutes
:The internal buzzer makes the beep sound when the
calibration value is within the range.
: The internal buzzer makes the beep sound when the
calibration value is out of the range.
: The external buzzer makes the beep sound when the
calibration value is within the range.
P1
Beep
Overview: Select beep
(warning) mode of
buzzer.
: The external buzzer makes the beep sound when the
calibration value is out of the range.
:Weight value holding function off
P2
Holding the Weight
Value
Overview: The weight
value can be held.
:
Press key to hold the weight value, press
key to cancel.

Service Manual Indicator JIK-6 Page 5
Printing function not used
Normal external printer option
Special option for SH-24 printer (pin type can print
out “jin”)
Special option for BP-443 and 643 (self-adhesive
type can print out bar code)
P3
Printer Selection
Overview: Use in
connection with a
printer.
Special option for EZ-2P printer (self-adhesive type
can print out bar code)

P4
RS-232 Transmission
Rate
Overview: Baud rate
setting.

P5
RS-232 Transmission
Format
Overview: Transmission
format setting in
connection with external
equipment like printer.
Parity
N: None E: Even O: Odd
Data Bit
7: 7bit 8: 8bit
Stop Bit
1: 1bit
: Backlight function off
: Backlight on
:Backlight on when weight value is stable, after 5
seconds, it will come off automatically.
P6
Backlight Selection
Overview: Backlight
function setting.
: When weight is 20 times over sensed weight,
backlight is on.
Note: Items marked with an asterisk () stand for factory settings.

Service Manual Indicator JIK-6 Page 6
2-2 Advanced Parameter Setting
(1) How to enter and change advanced parameter setting
Step I: When power is on: hold down key for about 3 seconds to enter into [General Parameter], then press
key for about 3 seconds.
Step II: When power is off: press key to power on and enter into [General Parameter], then press key for
about 3 seconds.
Step III: Select parameter functions by pressing or key, and select parameter setting by pressing or
key.
Step IV: Press key twice to save the parameter setting, and return to weighing mode. If you
don’t want to save the parameter setting, press key.
(2) Advanced parameter function descriptions
Item Function Display Description
:% Normal power on to use is allowed
within ±10% (OIML)
: % Normal power on to use is allowed
within ±20%
:% Normal power on to use is allowed
within ±30%
:% Normal power on to use is allowed
within ±40%
A00
Initial Zero Point Range
Overview: The calibrated zero
point value shall serve as the
benchmark, and the zero point
range shall be calculated in
percentage of max. Weighing
value.
:% Normal power on to use is allowed
within ±50%
:%
A01
Range of Use of Zero Key
Overview: The zero key range
can be improved. : ~ %
The Zero key can be used for deduction
within ±2%, 3%, 4%… 20% (e.g. ±2% of
300kg= ±6kg)
A02 Return to Zero Symbol-
Display Range :Display of zero point symbol when
variation is ±0e (OIML)

Service Manual Indicator JIK-6 Page 7
Overview: To set the
conditions for appearance of
zero point symbol.
: ~ Appearance of zero point symbol when
variation is ±1e, 2e…±5e
:Off
:
A03
Zero Point-Tracking Range
Overview: To reduce zero drift
problems caused by
environment and other factors. : ~
1e/s…5e, however, when precision
setting is lower than 6100/1 (OIML), it
will be adjusted automatically into 0.5e/s.
:Off
A04
Power Down Mode
Overview: standby function
setting. : ~ Take effect in 1~10 minutes. (Press any
key to restore)
:OFF (without hysteresis effect)
: ~
:
A05
Hysteresis Selection
Overview: To reduce critical
drift problem. However, it is
not always better to set high
values. Test of effect must be
carried out with respect to
each segment.
: ~
:or 0 (no shockproof effect), 1(worst effect)
:
A06
Shockproof Factor
Overview: To reduce
interference caused by bad
operating environment. : ~
: ~ 1e~19e
:20e (OIML)
A07
Min. Weighing Capacity
Overview: Min. printing range
up to 1e. (Originally it requires
20e and above) :21e
:OFF (no filtering effect)
: ~
:
A08
Filtering Factor
Overview: To improve
unstable condition of the scale;
in principle, the higher setting
the better effect. : ~
1(worst), 2, 3… 9(best).
: . or . Display when variation is within 0.2e or
0.5e
A09 Stable Symbol Display
Range
Overview: To set the :Display when variation is within 1e

Service Manual Indicator JIK-6 Page 8
conditions for appearance of
stable symbol. : ~ Display when variation is within 2e~8e
:One-way transmission (output)
A10
RS232-Receiving Port
Selection
Overview: To select one-way
or two-way transmission.
:Two-way transmission (output/input)
:Initiation Delay function off.
: . Signal sent out in 0.5sec.
A11
Initiation Delay
Overview: RS232 sends out
signal several seconds after
stable appearance of stable
symbol.
: ~ Signal output in 1sec., 2 sec…4 sec.
:Weight memory function off.
A12
Weight Memory
Overview: To record the last
weighing value. :On (The function is applicable for
production line)
:No limit
A13
Min. Internal Use Limit
Overview: To limit sensor use
rate. :L/C use rate at least over 60%
:Weight display function not in use.
A14
Calibration Mode-Weight
Display
Overview: No need to restart
the machine after calibration.
:In use.
:
A15
Enlargement Ratio Selection
Overview: To adjust ratio of
internal value to external
value.
:
:Starting time is year 2000 but without
RTC detection function
:
A16
Starting Year Setting
Overview: Since RTC
calculation time is around 15
years, this setting may avoid
occurrence of problems similar
to Y2K.
:~
The starting time calculation is based on
a scale of 4 years; you may select
between 2008~2100.
Note: Items marked with an asterisk () stand for factory settings.

Service Manual Indicator JIK-6 Page 9
2-3 Weighing Capacity, Sensed Weight Setting and Weight Calibration
Step I (Enter into calibration mode)
Sealed Type
(As shown in the right figure) release the screw
at the left back, power on while holding down
the [CAL] key at the back by use of a tool until
CAP is shown on the lower left screen, i.e. the
scale has entered into the calibration mode.
Non- Sealed Type: Turn on the scale by holding down key until CAP is shown on the lower left screen,
i.e. the scale has entered into the calibration mode.
Note: If the calibration unit, capacity, and resolution have been set, you may skip Steps II~IV and press
key to enter into Step V to perform zero point calibration.
Step II (Select Calibration Unit)
You may select calibration unit (kg, g, lb) by use of key.
Step III (Capacity Setting)
Press key and the flickering digit will shift to the right; press , key to set any value between
1-9; after setting, press key to enter into the next step.
Step IV (Resolution Setting)
Press key and the flickering digit will shift to the right; press , key to set any value between
1-9; after setting, press key to save and show the offset-value; press the weighing pan gently, if the
value changes, it’s normal.
Note: If you don’t want to perform calibration, just power off and the setting are completed.

Service Manual Indicator JIK-6 Page 10
Step V (Zero Point Calibration)
Press key to perform zero point calibration; when CAL on the lower left stops flickering, zero point
calibration is completed with CAL **kg shown.
Note: If the show value is very unstable, press key to enter into stb adjustment function, use key
to extend the range of stb (it is recommended to adjust one segment each time), after confirmation, press
key to save setting and the zero point calibration will be performed automatically.
Step VI (Single-point Calibration) Note: If to perform three-point calibration, skip this step.
Press key and the flickering digit will shift to the right; press , to adjust the value; input the
weight value to be calibrated, and put the correct weight onto the weighing pan, then press key to
save and confirm, once PASS is shown, take away the weight on the weighing pan and restart the machine
for normal use.
Step VII (Three-point Calibration)
Press key for 3 seconds until C-1 is shown at the lower left corner.
First Point C-1: Press key and the flickering digit will shift to the right; press , key to set
values; input the weight value to be calibrated, and put the correct weight onto the weighing pan, press
key to confirm and perform calibration.
Second Point C-2: Put the weight to be calibrated onto the weighing pan, the weight value will be shown
automatically on the screen; press key to confirm and perform calibration.
Third Point C-3: Put the weight to be calibrated onto the weighing pan, the weight value will be shown
automatically on the screen; press key to confirm and perform calibration. Once PASS is shown, take
away the weight on the weighing pan and restart the machine for normal use.
Recalibration: If any error occurs during calibration, press key to return to zero point calibration mode
and perform calibration according to the calibration procedures.
Note: The weight value in three-point calibration shall comply with C-1 < C-2 < C-3.

Service Manual Indicator JIK-6 Page 11
Chapter III Various Assemblies and Relevant Illustrations
3-1 Back Cover Assembly and Disassembly
Disassembly Steps:
1. Put the display head as shown in figure below, loosen the waterproof connector first to avoid damage of
contacts on the board, unscrew the fastening screws (position “E” as shown in figure below) by use of a
cross head screwdriver, and unscrew the two Allen screws (position “D” as shown in figure below) by use
of a 5mm Allen wrench or socket wrench.
2. As per the steps shown in Fig. C, remove the back cover and place it properly.
Assembly Steps:
1. Screw in the fastening screws by use of a cross head screwdriver, and screw in the two Allen screws by
use of a 5mm Allen wrench or socket wrench.
2. Special attention must be paid to check if every screw for display head of waterproof series is locked
tight. The screw-in torque shall be 5~7kg, and the screws at the four corners must be fastened at last (no
limitation for fastening order of others).
Note: As shown in Fig. A &B below, all screws of waterproof series have a stainless steel gasket and a
rubber gasket, which must be secured properly to avoid leakage.
(Take the waterproof model with built-in battery as the example)

Service Manual Indicator JIK-6 Page 12
3-2 Installation of Additional Board
1. First, please open the back cover as per the “Back Cover Assembly and Disassembly” methods.
2. As shown in figure below, mount the additional board onto the main board, and check if every contact is
inserted into the terminal block pin.
(No. A is A/D board module; No. B is solenoid switch and voice function board module; No. C is RS232 module)
3. After the boards are assembled, insert the fastening stud (J1~J4 as shown in figure below) into the fixing holes as
shown in figure below.
4. After the above steps are completed, wire with reference to the “Wiring Cross-reference Chart”.
Note: The main board and A/D board are standard equipment (A/D board with dual load cells is optional), all other
components are optional.
(Take the general model with built-in battery as the example)

Service Manual Indicator JIK-6 Page 13
3-3 Wiring Cross-reference Chart
Board Type Contact No. Purpose Remarks (Back cover through
contact)
CON1A ADAPTOR input contact DC socket
CON2 Battery input contact
Main Board CON3 For CPU program writing (no need to
remove CPU)
CON1 L/C contact (group I) 5pin metal connector (foreign
7pin)
A/D Board CON2 L/C contact (group II) (optional) 5pin metal connector (foreign
7pin)
CON4A RS-232 group I 9pin male socket
RS-232 CON4B RS-232 group II (optional) 9pin male socket
CON5 Solenoid switch contact (optional)
CON6 Solenoid switch contact (optional)
VOICE RELAY
CON7 Voice function contact (optional)
Note: CON1 of main board and CON1A, CON2A of A/D board as well as CON4 of RS232 board are contacts
of waterproof series.
The external connection method of waterproof scale series is as follows: signal line goes into the display head
through the waterproof connection, then use a smaller-sized flat-head screwdriver to lock the signal line
directly onto the relevant contact.

Service Manual Indicator JIK-6 Page 14
3-4 Illustration of Contacts of Additional Board
A/D Board (Dual type is
optional) Contact Code Function Remarks
1(GND) Grounding
2(S-), 3(S+) L/C signal input
4(ES-), 5(E-) Output to L/C 4 is for offset, connected with 5
6(ES+), 7(E+) Output to L/C 6 is for offset, connected with 7
1. CON1 and CON1A (for waterproof type) are the same and
connected.
2. CON2 and CON2A (for waterproof type) are the same and
connected.
3. CON1 is standard contact, while CON2 is optional contact.
RS-232 Board (Optional) Contact Code Contact Code
(waterproof) Function
CON4 A1, B4 CON4 1, 5 Grounding (GND)
CON4 A2, B5 CON4 2, 6 Output (TX12)
CON4 A3, B6 CON4 3, 7 Input (RX12)
1. The two groups of contacts, i.e. CON4A and CON4B are connected
with CON4 (for waterproof type), however, the 4th contact of CON4 is
not connected.
2. CON4A is standard contact, while CON4B is optional contact.
Solenoid Switch and Voice
Function Board (Optional) Contact Code Function
1, 5 (incl. CON5, CON6) Normally open contact
2, 6 (incl. CON5, CON6) Normally closed contact
3, 7 (incl. CON5, CON6) Common contact
5 (NO), 7(COM) (CON7) Voice signal output
1, 2, 3, 4, 6 (CON7) Reserved contact
This board functional group is divided into solenoid switch
module, voice module, solenoid switch plus voice module.
Main Board (Standard Part) Contact Code Function Remarks
1 Negative pole of battery
2 Positive pole of battery DC 6 V
3, 5 Negative pole of
transformer
4, 6 Positive pole of
transformer
DC 9~12 V
CON3 Program input connection For program
update
No.5 & 6(CON1) contacts are for waterproof series.

Service Manual Indicator JIK-6 Page 15
Chapter IV Troubleshooting
4-1 Preliminary Examination
1. Is the electric scale placed on a stable surface?
2. Is the bubble dot of level gauge centrally located?
3. Is the scale located near air conditioner or other air conditioning facility?
4. Is the wind in the operating environment too strong?
5. Is the temperature difference in the operating environment too big?
6. Is there magnetic field interference around the operating environment and the equipment?
4-2 Error Message and Troubleshooting
Problem Possible Cause Basic Inspection and Troubleshooting
Memory IC defect (24C02).
Replace memory IC (24C02) and refer to
“Parameter Function Setting” to reset internal
data.
CPU lead welding defect. Re-weld the contact of program IC (pos. no. U8)
on the main board by use of soldering iron.
E0
No set data
Display panel defect. Please replace display panel directly.
E1
No calibration data Calibration setting error. Please recalibrate with reference to “Model
Selection and Calibration Method”.
The protection screw of the
structure is not removed or there
is interference of overload
protection screw.
Please check and make appropriate adjustment.
When power on, the object is not
completely removed from the
weighing pan, or there is
interference of unknown object.
Please check around the weighing pan of the
structure.
E2
Initial Zero Point Too
High
E3
Initial Zero Point Too
Low Offset value differs from factory
setting due to effect of
transportation or other factors.
Please perform three-segment calibration
according to “Weighing Capacity, Sensed
Weight and Weight Calibration” so as to re-
record the new initial zero point value.
Interference of external
environment.
Eliminate possible environment problem with
reference to “Troubleshooting- Preliminary
Examination”.
L/C defect. Handle with reference to “L/C-related
Technology”, or directly replace L/C to see if it is
defective.
E4
Internal Value
Unstable
A/D board
Use volatile cleaning agent to clean A/D board, and
re-weld U2 (A/D IC). If the problem still exists,
replace the board.
Battery problem. Please check if RTC battery is low, or there is
bad contact.
E10
RS232 (RTC) Low
Battery Board problem. Please check if RS232 board and main board
have bad connection. If not, replace the board.
E11
In accumulation mode, data of
different units can’t be saved, ex.
Kg and pcs; only one fixed unit
can be used at one time.
Please press key twice to clear all
accumulation data, press to return to
normal weighing mode.

Service Manual Indicator JIK-6 Page 16
E12 XX
The accumulation group number
has exceeded the max. Preset
value.
Please press key to clear all unnecessary
accumulation data, or press to return to
normal weighing mode.
Sensor specification goes
beyond the handling range of
ADC.
Please select a suitable sensor.
Sensor may have been
damaged.
Handle with reference to “L/C-related
Technology”, or directly replace L/C to see if it is
defective.
Wrong calibration data setting
Please perform three-segment calibration
according to “Weighing Capacity, Sensed
Weight and Weight Calibration” so as to re-
record the new initial zero point value.
E5
Wrong setting of relevant
parameters.
Please set max. And min. weighing capacity
according to “Weighing Capacity, Sensed
Weight and Weight Calibration” and performs
three-segment calibration after setting is
completed.
Bad contact of metal connector. Please use phytocide (e.g. WD-40) to clean
male and female sockets of metal connector.
L/C line damaged or broken. Please check if any external force, insect or rat
damages L/C line.
E6
L/C problem
Handle with reference to “L/C-related
Technology”, or directly replace L/C to see if it is
defective.
E13 Wrong HI LO value setting
Please modify setting according to operation
manual; note that only when HI value is higher
than LO value can this function be used
normally.
Exceeding max. Weighing
capacity. (Max. weighing
capacity =set max. capacity +9e)
This message is to protect L/C; when this
warning message appears, please remove
object from weighing pan quickly.
E20 XXXXX
When precision setting exceeds
1/60000 of max. Value, this
message will appear.
Please reset according to “Weighing Capacity,
Sensed Weight and Weight Calibration”.
E21 XX
Based on OIML standard, this
appears when the basic model’s
e resolution ratio is <100, or
when the advanced model’s e
resolution ratio is <150.
Please reset according to “Weighing Capacity,
Sensed Weight and Weight Calibration”.
Remarks: e resolution ratio <100 means that,
when the external value change is 1e, the
internal value change is less than 100e. (The
standard is >100e)
LCD defect.
After confirming that there is no broken board
lines or short circuit of connection between LCD
and other conducting objects, please directly
replace LCD.
CPU welding joint defect. Re-weld the contact of program IC (pos. no. U8)
on the main board by use of soldering iron.
Poor LCD Display
(with broken or
missing strokes)
Display panel defect. Please directly replace display panel.
Power-on Failure Battery defect.
Please remove battery and power on by use of
charging transformer to see if the failure is due
to battery defect.

Service Manual Indicator JIK-6 Page 17
Key defect.
Please directly establish short circuit connection
between the two end contacts of power switch
on the display panel to see if the power switch
key is normal.
Charging transformer problem.
Please try a normal charging transformer to see
if the scale can be powered on, or measure if
there is DC9V output by use of an avometer.
Display panel defect.
Please check if the fuse on the board is
disconnected, if not, please re-weld program IC
(pos.: U8); if the problem still exists, replace the
board.
Battery defect.
The battery voltage must be over 6V. Please
charge the battery when voltage is under 6V. If
the battery can’t be fully charged or runs out
shortly after being fully charged, please replace
battery.
No DC power input.
Please try a normal charging transformer to see
if the scale can be powered on, or measure if
there is DC9V output by use of an avometer.
Charging Failure or
Service Life
Shortened
Display panel defect. Please directly replace display panel.
Wrong internal setting. Please refer to “Various Parameters Setting”
and re-enter the correct setting values.
Three-point calibration error.
Please set max. And min. weighing capacity
according to “Weighing Capacity, Sensed
Weight and Weight Calibration” and performs
three-segment calibration after setting is
completed.
Interference of unknown object.
Please conduct visual inspection of the exterior
and interior of the scale to see if there is
something interfering with L/C structure and the
weighing pan.
L/C defect. Directly replace L/C to see if it is defective.
Linear Defect or
Incorrect Weighing
A/D board defect. Please replace A/D board directly.
Wrong internal setting. Please reset with reference to “Various
Parameters Setting”.
Interference of unknown object.
Please conduct visual inspection of the exterior
and interior of the scale to see if there is
something interfering with L/C structure and the
weighing pan.
L/C defect. Directly replace L/C to see if it is defective.
Calibration Failure
A
/D board or display panel
defect.
Please replace A/D board or display panel
directly.
Interference of external
environment.
Eliminate possible environment problem with
reference to “Troubleshooting- Preliminary
Examination”.
Three-point calibration value
error.
Please recalibrate with reference to “Model Selection
and Calibration Method”.
Interference of unknown object.
Please conduct visual inspection of the exterior and
interior of the scale to see if there is something
interfering with L/C structure and the weighing pan.
Zero Point Unstable
L/C defect. Directly replace L/C to see if it is defective.

Service Manual Indicator JIK-6 Page 18
A/D board defect.
A/D board is prone to interference, esp. A/D IC;
please clean the board by use of stain removal oil. If
the problem still exists, replace A/D board.
Handling of Special
Cases such as
Machine Down,
Failure to Power
On/Off as Usual
As shown in Fig.1 on the right,
remove the rear screw of the
display head by use of a cross
head screwdriver.
As shown in Fig.2 on the right,
gently press RESET key inside
the display head by use of a bar
strip and the scale will be
restarted automatically.
How to “Clear
Memory”
Press key to power on, the display window will show id, then press ,
, and in turn, finally, hold down key (for about 2 seconds),
the window will show –, press key to restart the scale and the
memory will be cleared. Note: After clearing memory, you must at least perform
model setting and linear calibration; otherwise, you cannot use the scale.

Service Manual Indicator JIK-6 Page 19
4-3 Summary Table of Error Message
Including the full range of China-made models and Taiwan-made JIK, JC (W) A, JP (W) G, and the
new versions SNUG, NWTC, JKD and JKH.
Error Message Possible Cause Error Message Possible Cause
1
E0
or
Memory IC defect.
CPU lead welding defect.
No internal setting/calibration
data.
9 E12 XX The accumulation group number
has exceeded the max. Preset
value.
2 E1  Calibration setting error. 10 E20 XXXX
This message appears when
precision setting exceeds the
standard, e.g. the original max.
Precision setting value is 1/30000,
but the input setting value exceeds
this precision setting.
3
or
±
Initial zero point value over
standard.
Weighing pan is not clear, or
there is interference of unknown
object.
Interference of transportation or
overload protection screw.
11 E21 XX
Based on OIML standard, this
appears when the basic model’s e
resolution ratio is <100, or when the
advanced model’s e resolution ratio
is <150.
4 E4
Zero point can’t be detected due
to environment interference 
L/C defect.
Board defect.
12
 Exceeding max. Weighing capacity.
(Full load weight +9e)
5
E5
±
or
L/C specification goes beyond the
handling range of ADC.
L/C may have been damaged.
Calibration data setting error.
13
 Weight value being used not
conforming to calibration value
requirement when performing
calibration.
6 E6
No L/C signal or L/C not
connected.
L/C line damaged or broken.
Bad contact of metal connector.
(Platform scale)
14
 Unit being used conflicts with initial
unit setting, e.g. when setting all
units usable when power on at OFF.
7 E10
RTC battery defect or battery not
installed.
RTC board defect.
RTC time not set.
15
 Beyond the display range of LCD
window.
8 E11
 In accumulation mode, only one
fixed unit can be used at one time,
or in the case of dual weighing
pans, accumulation is to be
performed in another group when
one group has accumulation
function already.
17

Service Manual Indicator JIK-6 Page 20
Chapter V Structural Part of Platform Scale
5-1 Connection of Metal Connectors
5-2 L/C Replacement Process
1. Please remove L/C or additional function connection lines by use of a smaller-sized flat head screwdriver
with reference to “Various Assemblies and Relevant Illustrations-Back Cover Assembly and Disassembly
and Wiring Cross-reference Chart” (for non-waterproof type, directly remove the metal connector and
other external connectors), then take out the fixing knob (Fig. I “A”) in order to remove the display head.
(Fig. I)
2. Unscrew the retaining screws of erecting pole (Fig. II “B or D”), then remove the erecting pole (Fig. II
“A”) and weighing pan (Fig. II “C”).
(Fig. II)
3. Exploded Drawing of Structure (Reference Drawing)