Transcript
SERVICE MANUAL Model: DS-685L/F Series
Edition
Month
Year
1st
March
1996
nd
May
1996
rd
April
1997
4
th
March
2002
5
th
2
3
SHANGHAI TERAOKA ELECTRONIC CO., LTD. --- Technical Service Dept. Ting Lin Industrial Development Zone, Jin Shan District, Shanghai P. R. China 201505 Tel: +86-21-5723-4888
Fax: +86-21-5723-9330
E-Mail:
[email protected]
DS-685L/F Service Manual Revised
CONTENT 1. General Specification 1.1. Model Specification ---------------------------------------------------------------------
1
1.2. Features -----------------------------------------------------------------------------------
1
1.3. Overall View ------------------------------------------------------------------------------
2
1.4. Dimension ---------------------------------------------------------------------------------
3
1.5. Key-Sheet Layout -----------------------------------------------------------------------
4
1.6. Key Function -----------------------------------------------------------------------------
4
1.6.1. Type A (8 Preset Keys) ----------------------------------------------------------
4
1.6.2. Type B (14 Preset Keys) --------------------------------------------------------
4
1.7. Operation Condition --------------------------------------------------------------------
5
1.8. Charging Condition (For Rechargeable Battery Only) -------------------------
5
1.9. Analog Specification -------------------------------------------------------------------
5
1.10. Main Components Used -------------------------------------------------------------
5
1.11. Capacity / Minimum Graduation / Tare Range ---------------------------------
6
1.11.1. DS-685L ---------------------------------------------------------------------------
6
1.11.2. DS-685F ---------------------------------------------------------------------------
6
2. Maintenance Mode 2.1. SPAN SW Location & Stopper Screws -------------------------------------------
7
2.2. Internal Count & A/D Count Display -----------------------------------------------
7
2.3. SPAN Adjustment ----------------------------------------------------------------------
8
2.4. Escape From Calibration Mode -----------------------------------------------------
8
2.5. Specification Setting Operation -----------------------------------------------------
9
2.5.1. User Specification Setting (141) -----------------------------------------------
9
2.5.2. Specification Entry (142) --------------------------------------------------------
9
2.6. DS-685L Specification List (V1.26) ------------------------------------------------
10
2.6.1. Customer Specification List (141) V1.26 ------------------------------------
10
2.6.2. Weight & Measure Specification List (142) V1.26 ------------------------- 10 2.7. DS-685F Specification List (V1.06) -------------------------------------------------
12
2.7.1. User Specification List (141) V1.06 -------------------------------------------
12
2.7.2. For Weight & Measure (142) V1.06 ------------------------------------------- 12 2.8. Location of Sealing Screw ------------------------------------------------------------
14
3. Error Message -------------------------------------------------------------------------------
15
4. Hardware Detail 4.1. DS-685L -----------------------------------------------------------------------------------
16
4.1.1. NRFI Electrical Connection Block Diagram --------------------------------- 16
1
DS-685L/F Service Manual Revised 4.1.2. RFI Electrical Connection Block Diagram -----------------------------------
16
4.1.3. Microcomputer Pin Assignment ------------------------------------------------ 17 4.2. DS-685F -----------------------------------------------------------------------------------
19
4.2.1. NRFI Electrical Connection Block Diagram --------------------------------- 19 4.2.2. RFI Electrical Connection Block Diagram -----------------------------------
19
4.2.3. Microcomputer Pin Assignment ------------------------------------------------ 20 5. Circuitry Diagram ---------------------------------------------------------------------------- 22
2
CONTENT I. INTRODUCTION 1. Feature
........................................................................................................
I-1
II. SPECIFICATION 1. General specification 1.1 Overall view ................................................................................. II-1 1.2 Dimension ................................................................................. II-2 1.3 Model specification ..................................................................... 1.4 Operation condition ……………………………………………… 1.5 Main components used ……………………………………………… 1.6 Capacity / Minimum graduation / Tare range ………………………
II-3 II-3 II-3 II-4
III. INITIAL SETUP 1. Specification setting 1.1 Specification entry (141) ..................................................................... 1.2 Specification entry (142) ..................................................................... 1.3 Specification list of DS-685 (Version 1.21) ……................................... III-3 1.4 Specification list of DS-685F (Version 1.00) ………………………….. III-6 2. Key layout and function 2.1 8 preset key type
.....................................................................
3. Location of sealing screw ................................................................................. III-11 4. Set up procedure
………................................................................................. III-11
IV. ADJUSTMENTS 1. Span enable switch setting ................................................................................. IV-1 2. Internal count and A/D count 3. Span adjustment
............................................................................................. IV-1
4. Escape from maintenance mode 5. Error message
2. DS-685F
...................................................................... IV-2
............................................................................................. IV-3
V. ELECTRICAL CIRCUITRY 1. DS-685
...................................................................... IV-1
III-1 III-2
III-9
DS-685L/F Series Service Manual 1. General Specification 1.1. Model specification z Model Name: DS-685L / DS-685F z Display Resolution: 1/3,000 z Internal Resolution: 1/30,000 (DS-685) 1/60,000 (DS-685F) z Platter Size: 300mm x 225mm (11.8” x 8.8”) z Display: Double-sided display A) LCD display version Weight
- 5 digits
Unit Price
- 5 digits / - 6 digits (1 fixed zero) / - 7 digits (2 fixed zeros)
Total Price
- 6 digits / - 7 digits (1 fixed zero) / - 8 digits (2 fixed zeros)
B) FIP display version Weight display
- 5 digits
Unit price display
- 5 digits
Total price display
- 6 digits
1.2. Features DS-685 offers the following features: z Low cost digital price computing scale z Quick response to weight changes z Capacity: 3kg, 6kg, 15kg, 30kg, 30lb z Resolution: A) DS-685 (LCD display): Display resolution 1/3,000, Internal resolution 1/30,000. B) DS-685F (FIP display): Display resolution 1/3000, Internal resolution 1/60,000. z Low power consumption: A) DS-685 (LCD display): 6 x D size dry battery back up for more than 500 hours of continuous usage. B) DS-685F (FIP display): Rechargeable battery backup for 8 hours of continuous usage. (Optional) z Battery low detection A) DS-685L (LCD Display) Two –Point lower detect for Dry Battery * When battery is weak, the battery indicator will light up. * When the power from battery becomes lower, scale cannot compute accurately, all display will shut off except the battery indicator. The power is then shut off completely after 1 minute.
Page No. 1
DS-685L/F Series Service Manual B) DS-685F (FIP Display) Four-Point battery status detect (Rechargeable battery) * When battery is weak, the battery indicator will light up. * When the power from battery becomes lower, scale cannot compute accurately, all displays will shut off except the battery indicator. The power is then shut off completely after 1 minute. * When battery needs to charge and AC power available, battery will be charged. * Automatically stop charging when battery is fully charged. z Calibration by software z Splash water proof z Customer and operator displays (optional customer pole display) z 30 keys: ON/OFF key, 10 Numeric keys, 11/5 Operational keys, 8/14 Preset keys z Plastic housing z Display Tube: DS-685L: High contrast LCD display DS-685F: FIP display 1.3. Overall view
DS-685 Bench type
DS-685 Pole type
Page No. 2
DS-685L/F Series Service Manual 1.4. Dimension
DS-685 Bench type
DS-685 Pole type
Page No. 3
DS-685L/F Series Service Manual 1.5. Key-Sheet Layout
Keysheet Type A
Keysheet Type B
1.6. Key Function 1.6.1. Type A (8 Preset Keys) : ON/OFF key. Turn the power ON or OFF. to
: PRESET keys. Set up or call either unit price.
to
: Numeric keys. Input numeric value. : TARE key. Set or clear tare value. : CLEAR key. Clear numerical values. : AUTO key. Select whether or not to clear a unit price (and/or) tare value. : Multiple key, Register the same non-weighing product multiple times. : HOLD key. Holds the display value for 8 seconds. : MINUS key. Correction operation on products. : AMT/TEND key. Used to enter amount tendered. Two different types of AMT/TEND operation can be selected by SPEC 9 BIT 3. : PLUS key. Adds sum, accumulated sum. : RE-ZERO key. Resets weight display to zero. : MODE SET key. Switch into following modes: Program & Grand Total Check Mode. : Data Setting key. Set up or clear mode.
1.6.2. Type B (14 Preset Keys) : ON/OFF key. Turn the power ON or OFF. to
: PRESET keys. Set up or call either unit price.
to
: Numeric keys. Input numerical value. : TARE key. Set or clear tare value. : CLEAR key. Clear numerical values. : RE-ZERO key. Resets weight display to zero. : MODE SET key. Switch into Program Mode. : Data Setting key. Set up or clear mode.
Page No. 4
DS-685L/F Series Service Manual 1.7. Operation Condition z Power source a) DS-685L: AC 240/230/220V, 117/100V (+10%, -15%) (Factory Set) DC 6 x D size dry battery (9V) b) DS-685F: AC 240/230/220V, 117/100V (+10%, -15%) (Factory Set) DC 12V 3Ah rechargeable battery (optional) z Operating Temperature: -10oC to +40oC z Operating Humidity: 15% to 85% RH z Power Consumption a) DS-685L: 1.5W for AC Power / 0.1W for Dry Battery b) DS-685F: 18W for AC Power / 3.6W for Rechargeable Battery 1.8. Charging Condition (For Rechargeable Battery Only) a) DS-685L Power Source: DC 8V from charger Charging Current: 800mA Charging Time: 12 ~ 14 hours b) DS-685F Power Source: AC 240/230/220V, 117/100V. (Factory set) Charging Current: 800mA Charging Time: 18 ~20 hours 1.9. Analog Specification z Input Sensitivity: 1mV/V z Zero Adjustment Range: 0 ~+/-2.5mV z Zero Balance Range: 0 ~ +/-0.5mV z L/C Exciting Voltage: DC 5V z A/D Conversion Speed: 3 times/sec z Internal Resolution: 1/30,000 (DS-685L), 1/60,000 (DS-685F) 1.10. Main components used z Microcomputer: DS-685L: NEC uPD75308GF (4 Bit, 8K PROM) or NEC Upd75304GF (4Bit, 4K ROM) DS-685F: NEC uPD75P216ACW (4 BIT 16K PROM) or NEC uPD75212ACW (4 BIT 12K ROM) z Crystal Oscillator: 4.19 MHz z Display Device: DS-685L: Liquid Crystal Display (LCD) DS-685F: Vacuum Fluorescent Display (FIP) z Load Cell: 1K resistance load cell (OIML)
Page No. 5
DS-685L/F Series Service Manual 1.11. Capacity / Minimum Graduation / Tare Range 1.11.1. DS-685L * Single interval Capacity 3 kg 6 kg 15 kg 30 kg 30 lb
Minimum Graduation 1g (1e = 10IR) 2g (1e = 10IR) 5g (1e = 10IR) 10g (1e = 10IR) 0.01lb (1e = 10IR)
Tare Range 0 - 1.499kg 0 - 2.998kg 0 - 7.495kg 0 - 14.99kg 0 - 14.99lb
* Multi-interval Capacity
Minimum Graduation
Tare Range
1g (1e = 10IR) 3 kg (0 3 kg) 1g (1e = 5IR) (3 - 6 kg) - 2g (1e = 10IR) 6 kg (0 - 6 kg) - 2g (1e = 4IR) (6 - 15 kg) - 5g (1e = 10IR) 15 kg (0 15 kg) 5g (1e = 5IR) (15 - 30 kg) - 10g (1e = 10IR) 30 kg (0 - 15 lb) - 0.005lb (1e = 5IR) (15 - 30 lb) - 0.01lb (1e = 10IR) 30 lb Note: IR = Internal Resolution, e = division (minimum increment)
0 - 1.499kg 0 - 2.999kg 0 - 5.998kg 0 - 9.995kg 0 - 9.995lb
Internal count (full capacity) = 30000IR 1.11.2. DS-685F * Single interval Capacity 3 kg 6 kg 15 kg 30 kg 30 lb
Minimum Graduation 1g (1e = 20IR) 2g (1e = 20IR) 5g (1e = 20IR) 10g (1e = 20IR) 0.01lb (1e = 20IR)
Tare Range 0 - 1.499kg 0 - 2.998kg 0 - 7.495kg 0 - 14.99kg 0 - 14.99lb
* Multi-interval Capacity 3 kg 6 kg 15 kg 30 kg 30 lb
Minimum Graduation 1g (1e = 10IR)
Tare Range 0 - 1.499kg
(0 - 3 kg) - 1g (1e = 10IR)
(3 - 6 kg) - 2g (1e = 20IR)
0 - 2.999kg
(0 - 6 kg) - 2g (1e = 8IR) (6 - 15 kg) - 5g (1e = 20IR) (0 - 15 kg) - 5g (1e = 10IR) (15 - 30 kg) - 10g (1e = 20IR) (0 - 15 lb ) - 0.005lb (1e = 10IR) (15 - 30 lb) - 0.01lb (1e = 20IR)
0 - 5.998kg
Note: IR = Internal Resolution, e = division (minimum increment) Internal count (full capacity) = 60,000IR
Page No. 6
0 - 9.995kg 0 - 9.995lb
DS-685L/F Series Service Manual 2. Maintenance Mode 2.1. SPAN SW Location & Stopper Screws Before setting up of DS-685, remove the “LOADCELL STOPPER” from the bottom of the scale as shown in the diagram below. Load Cell Stoppers Hole For SPAN Switch
Please remove the “ Load Cell Stoppers”, before processing for calibration: 1.
Place platter on the platter support.
2.
Turn on the scale power supply and check the scale functional.
3.
Before calibration, use a small insulate rod to switch on the SPAN-SW, which is at the bottom of the scale (as shown above diagram).
4.
Refer to Calibration Operation for further detail.
2.2. Internal Count & A/D Count Display 1 - ZERO
2 - NET 3 - HOLD
Operation [Re-Zero] + [0] [0] [9]
[T]
4 - AUTO
Weight
5 - MEMORY
U. Price
6 - BATTERY
T. Price
1
88888 88888 888888
DS685
4890
0
0.0 0 0
0.0 0
0.0 0
2
3
4
5
6
Remarks Enter 0 0 9 while depressing [Re-Zero] U.Price window display A/D count, Total Price window displays Internal Count 'T' key back to Weighing mode
a) Please make sure that nothing has been placed on the platter during internal count checking. b) In order to call up the internal count mode, enter [0] [0] [9] while depressing [Re-Zero] key. c) The display shows count in the “UNIT PRICE” column for A/D data count and “TOTAL PRICE” column for internal count.
Page No. 7
DS-685L/F Series Service Manual z
DS-685L Zero internal count should be 4,800 +/- 300, if you can not get 4,800 +/- 300 count, do span adjustment again.
z
DS-685F Zero internal count should be 9,600 +/- 300, if you can not get 9,600 +/- 300 count, do span adjustment again.
d) Depress “ T “ key to exit “INTERNAL COUNT AND A/D COUNT” mode.
2.3. SPAN Adjustment 1 - ZERO
2 - NET 3 - HOLD
Operation
4 - AUTO
Weight
U. Price
0.0 0 0 SPAN Switch ON
5 - MEMORY
6 - BATTERY
T. Price
0. 0 0
0.0 0
D S 6 8 5 V r x. x x
S-On
1
2
3
4
5
6
Weighing mode Enter 8 7 1 5 while depressing [Re-Zero]
88888 88888 888888 [Re-Zero] + [8][7][1][5]
CAL00
[*]
- - - - -
After few second
CALSP
Load Weight [ * ]
- - - - -
After calibration
1 5.0 0 0
Remarks
Ensure no weight on platter, Calibrating zero point Put full capacity weight on platter (e.g. 15kg) Calibrating Span 0.0 0
Back to Weighing mode
0.0 0
2.4. Escape Form Calibration Mode 1 - ZERO
2 - NET 3 - HOLD
Operation
4 - AUTO
Weight 0.0 0 0
SPAN Switch ON [T]
5 - MEMORY
U. Price
6 - BATTERY
T. Price
0. 0 0
0.0 0
D S 6 8 5 V r x. x x
S-On
0.0 0 0
0. 0 0
0.0 0
SPAN Switch ON
D S 6 8 5 V r x. x x
S-On
[Re-Zero] + [8][7][1][5]
88888
88888 888888
1
2
3
4
5
6
Remarks Weighing mode Escape to Weighing mode Enter 8 7 1 5 while pressing [Re-Zero]
CAL00 [T]
0.0 0 0
0. 0 0
0.0 0
SPAN Switch ON
D S 6 8 5 V r x. x x
S-On
[Re-Zero]
88888
[Re-Zero] + [8][7][1][5]
CAL00
Enter 8 7 1 5 while pressing [RE-ZERO]
Ensure no weight on platter, [ * ]
- - - - -
Calibrating zero point
88888 888888
Escape
CALSP [T]
0.0 0 0
0. 0 0
0.0 0
Page No. 8
Escape to Weighing mode
DS-685L/F Series Service Manual 2.5. Specification Setting Operation 2.5.1. User Specification Setting (141) 1 - ZERO
2 - NET 3 - HOLD
Operation
4 - AUTO
Weight
5 - MEMORY
6 - BATTERY
U. Price
T. Price
Remarks
[Re-Zero]+[1][4][1]
SPC00
0000
0000
Enter [1] [4] [1] while depressing [ReZero]
[+]
SPC01
0000
0000
[+] Key only increase specification count, It does not update spec data
[-]
SPC00
0000
0000
[-] Key only decrease specification count, it does not update spec data
[0][1][0][1]
SPC00
0000
0101
Only [1] & [0] key are enable
[*]
SPC01
0000
0000
[*] Key to store specification
[-]
SPC00
0101
0000
[T]
0.0 0 0
0.0 0
0.0 0
Store SPECS to EEPROM & escape to weighing mode
Note: For 12 Preset-Keys type, please press preset-key 12# instead of [+] key, and press preset-key 11# instead of [-] key. 2.5.2. Specification entry (142) Note: It can only work when SPAN SWITCH is on (Enable) Operation
Weight
U. Price
T. Price
[Re-Zero]+[1][4][2]
SPC08
0000
0000
Enter [1][4][2] while depressing [Re-Zero]
[+]
SPC09
0000
0000
[+] key only increase spec number
[+]
SPC10
0000
0000
it does not update spec data
[1][0][1][1]
SPC10
0000
1011
only [1] & [0] KEY are enable
[*]
SPC11
0000
0000
[*] to store specification [-] key only decrease specification number, does not update Spec data
[-]
SPC10
1011
0000
[+]
SPC11
0000
0000
[1][1][1][1]
SPC11
0000
1111
[C]
SPC11
0000
0000
[1][0][1][0]
SPC11
0000
1010
[*]
SPC12
0000
0000
[+]
SPC13
[T]
0.0 0 0
0000
Remarks
[*] KEY to store specification
0000
0.0 0
0.0 0
Store SPECS to EEPROM & escape to weighing mode
Note: For 12 Preset-Keys type, please press preset-key 12# instead of [+] key, press preset-key 11# instead of [-] key.
Page No. 9
DS-685L/F Series Service Manual 2.6. DS-685L Specification list (Version 1.26) 2.6.1. Customer Specification List (1 41) V1.26 SPEC
Bit 3
Bit 2
Bit 1
Bit 0
Power Auto Off function (When no key operation & weigh operation)
00
0000: No Auto Power Off Function 0001: 3 minute 0010: 10 minutes 0011: 30 minutes
0100: 1 hour 0101: 3 hours 0110 ~ 1111: Not used
Buzzer
01
0: On 1: Off
Not Used
Not Used
Not Used
Not Used
Not Used
Multi-Currency (Convert National Currency to “EURO”) *V1.22
02
00: No Conversion 01: Method 1
10: Method 2 11: Not used
Decimal Point Position on EURO conversion Rate
03
000: 7th digit (0.000000) 001: 6th digit (0.00000) 010: 5th digit (00.0000)
*V1.25
011: 4th digit (000.000) 100: 3rd digit (0000.00) 101 ~ 111: Not used
Not Used
2.6.2. Weight & Measure Specification List (1 4 2) V1.26 Note: It can only work when the SPAN Switch is on (Enable)
SPEC
Bit 3
Bit 2
Bit 1
Bit 0
Price Base:
08
0000: $/kg 0001: $/100g AMT/TEMD Operation
09
0: Method B 1: Method A Zero Lamp "On"
10
11
0010: $/lb 0011 ~ 1111: Not used G.T. Correct
Key-Sheet Layout
0: Enable 1: Disable
0: 6/8 Preset Keys 1: 14 Preset Keys
Scale Start
Auto Operation
0: Automatic 0: Gross 0 1: Manual 1: Net 0 Decimal Point Position On Weight Display 00: No decimal point 01: Not used 10: 3rd digit (000.00) 11: 4th digit (00.000)
0: No 1: Yes Display Hold
0: NO 0: No 1: YES 1: Yes Decimal Point Position On Unit And Total Price Display 00: No decimal point 01: 2nd digit (0000.0) 10: 3rd digit (000.00) 11: Not used
Minus Weight Display Mask
12
IR Mode Protected By SPAN SW
Fixed Zero At The End Of Unit And Total Price Display
00: Minus gross > 9e 01: Minus gross Weight 10: Minus Net Weight 11: Not used
00: NO fixed zero 01: 1 fixed zero
Page No. 10
10: 2 fixed zero 11: Not used
DS-685L/F Series Service Manual SPEC
Bit 3
Bit 2
Bit 1
Bit 0
Selection Of Capacity
13
0000: 3000: (3.000kg, 30.00kg, 30.00lb) 0001: 6000: (6.000kg) 0011: 15000: (15.000kg) 0101: 30000: (30.000kg, 30.000lb) 1000: 30000: (30.000kg) Selection Of Resolution
14
00: Single Interval 01: Multi Interval
10: 1/7500 or 1/6000 11: Not Used
Additional Rounding For Total Price
15
00: NO Additional Rounding 01: 1/4 Rounding (25 step) 10: Special Rounding (5 step) 11: Rounding For 1ST Digit
1-------, -------2 / 1(0~3000) , 2(3000~6000) 5 / 2(0~6000) , 5(6000~15000) 10 / 5(0~15000), 10(15000~30000) 10 - - - - - - - , -------Multi-Interval Setting For
Selection Of Model
0: Net 1: Gross
0: DS-685 1: DS-688
Rounding For Total Price
Selection Of Segment-Check Style *V1.21
0: Rounding 1: Truncation
*V1.21
0: Fast 1: Standard
Manual Tare Clear
Tare Subtraction
Tare Accumulation
Re-zero Function
16
0: Enable 1: Disable
0: Allow 1: Inhibit
0: Allow 1: Inhibit
0: Allow 1: Inhibit
17
Digital Tare
Accumulation When Tare
Zero Tracking When Tare
Weight Reset When Tare
0: Enable 1: Disable
0: Inhibit 1: Allow
0: Allow 1: Inhibit
Tare Value Exchange
AUTO Tare Clear When Re-zero
Tare AUTO Clear
Unit Price AUTO Clear
0: Allow 1: Inhibit
0: No 1: Yes
AUTO Clear Condition
WT Data Synchronization (+ Key)
Accumulation Number Display
Management Mode (Grand Total)
0: >= Gross 21e & >= Net 5e 1: >=Net 1e & price not 0
0: No 1: Yes
0: No 1: Yes
0: Enable 1: Disable
Accumulation
Subtraction
Multiplication
Tender Or Change
0: Allow 1: Inhibit
0: Allow 1: Inhibit
0: Allow 1: Inhibit
0: Allow 1: Inhibit
Exit From Accumulation Mode After 15 Sec
Accumulation When Exit From Accumulation Mode Weight Not Removed When Weight Change 0: Allow 1: Inhibit 0: No 1: Yes
0: Enable 1: Disable
18
19
20
21
0: No 1: Yes
22
Tax
*V1.22
0: Inhibit 1: Allow
23
Start Range 00: +-10% FS 01: +-5% FS
Key Layout
0: Inhibit 1: Allow
*V1.26
0: Inhibit 1: Allow
Accumulation When Weight Change < +/10e 0: Disable 1: Enable
*V1.22
0: Standard 1: Japan
Not Used
Not Used
Not Used
Not Used
*V1.26
10: +-3% FS 11: +-2% FS
Page No. 11
DS-685L/F Series Service Manual 2.7. DS-685F Specification List (version 1.06) 2.7.1. User Specification List (1 4 1) V1.06 SPEC
Bit 3
Bit 2
Bit 1
Bit 0
Power Auto Off function (for no key operation & weigh operation)
0
1
0000 – No Auto power off function 0001 - 3 minute 0010 - 10 minutes 0011 - 30 minutes
0100 - 1 hour 0101 - 3 hours 0110 ~ 1111 - Not used
Buzzer
FIP Brightness Levels (Varying Levels For Different Brightness)
0 - On 1 - Off
000 - Highest Brightness Level | 111 - Lowest Brightness Level
Multi-Currency (Convert to “EURO”) *V1.02
2
00 - No Multi-Currency 01 - Method 1
Not Used
10 - Method 2 11 - Not used
Decimal Point Position on EURO conversion Rate
3
000 - 7th digit (0.000000) 001 - 6th digit (0.00000) 010 - 5th digit (00.0000)
Not Used
*V1.05
011 - 4th digit (000.000) 100 - 3rd digit (0000.00) 101 ~ 111 - Not used
Not Used
2.7.2. For Weight & Measure - (1 4 2) V1.06 NOTE: It can only work when the SPAN Switch is on (Enable) SPEC
Bit 3
Bit 2
Bit 1
Bit 0
Price Base
8
0000 - $/kg 0001 - $/100g
0010 - $/lb 0011 ~ 1111 - Not used
AMT/TEMD Operation G.T. Correction
9
10
Key Layout
IR Mode Protected By SPAN SW
0 - Method B 1 - Method A
0 - Allow 1 - Inhibit
0 - 6/8 Preset Keys 1 - 14 Preset Keys
ZERO Lamp ON
Scale Start
Auto Operation
Display Hold
0 - Gross 0 1 - Net 0
0 - Automatic 1 - Manual
0 - NO 1 - YES
0 - NO 1 - YES
Decimal Point Position On Weight Display
0 - NO 1 - YES
Decimal Point Position On Unit And Total Price Display
11
00 - No decimal point 01 - 2nd digit (0000.0) 10 - 3rd digit (000.00) 11 - 4th digit (00.000)
12
Negative Weight Display Mask
Decimal Point Form
Tax
00 - Minus gross >9e 01 - Minus gross
0 - Period (.) 1 - Comma (,)
0 - NO 1 - YES
00 - No decimal point 01 - 2nd digit (0000.0) 10 - 3rd digit (000.00) 11 - 4th digit (00.000)
10 - Minus Net 11 - Not used
*V1.02
Selection Of Capacity
13
0000 - 3000 - (3.000kg, 30.00kg, 30.00lb) 0001 - 6000 - (6.000kg) 0011 - 15000 - (15.000kg) 0101 - 30000 - (30.000kg, 30.000lb) 1000 - 30000 - (30.000kg)
Page No. 12
1 -------, -------2 / 1(0~3000) , 2(3000~6000) 5 / 2(0~6000) , 5(6000~15000) 10 / 5(0~15000), 10(15000~30000) 10 - - - - - - - , --------
DS-685L/F Series Service Manual SPEC
14
Bit 3
Bit 2
Bit 1
Selection Of Resolution
Multi-Interval Setting Selection Of Model
00 - Single Interval 01 - Multi Interval
0 - DS-685 0 - Net Multi-Interval 1 -Gross Multi-Interval 1 - DS-688
10 - 1/7500 Or 1/6000 11 - Not Used
Rounding For Total Price
Additional Rounding For Total Price
15
16
17
000 - NO Additional Rounding 001 - 1/4 Rounding (25 step) 010 - Special Rounding (5 step)
19
20
21
22
23
Segment-Check Style
Tare Subtraction
Tare Accumulation
0 - Allow 1 - Inhibit
0 - Allow 1 - Inhibit
0 - Allow 1 - Inhibit
Digital Tare
Accumulation When Tare
Zero Tracking When Tare
Weight Reset When Tare
0 - Allow 1 - Inhibit
0 - Inhibit 1 - Allow
0 - Allow 1 - Inhibit
Tare Value Exchange AUTO Tare Clear When Re-zero 0 - Allow 0 - Inhibit 1 - Inhibit 1 - Alow
Tare AUTO Clear
Unit Price AUTO Clear
Auto Clear Condition WT Data Synchro. (+ Key only) 0 - >= Gross 21e 0 - NO & >= Net 5e 1 - >=Net 1e & price 1 - YES not 0
Accumulation Number Display
Management Mode (Grand Total)
0 - NO 1 - YES
0 - Enable 1 - Disable
Accumulation
Subtraction
Multiplication
Tender Or Change
0 - Enable 1 - Disable
0 - Enable 1 - Disable
0 - Enable 1 - Disable
0 - Enable 1 - Disable
Exit From Accumulation Mode After 15 Sec
Exit From Accumula. Price Accumulation Mode When Weight Without Removing Changed Weight
0 - Inhibit 1 - Allow
0 - Inhibit 1 - Allow
Charging Lamp On When Charging
Keyboard & Display Type
0 - Fast 1 - Standard
0 - Disable 1 - Enable
0 - Allow 1 - Inhibit
0 - Disable 1 - Enable
Price Accumulation When Weight Changed < +/- 10e 0 - Allow 1 - Inhibit
*V1.01
0 - NO 1 - YES
000 - Standard Type 001 - CA Type 010 - U1 Type
kg/lb Conversion (CA Type) *V1.01
Unit Price 1/2,1/4 lb Price Base (UK Type) Price Base AUTO Base (U1 Type) *V1.01 *V1.01 Clear (UK Type)
0 - Inhibit 1 - Allow
0 - Inhibit 1 - Allow
Start Range
24
011 - Rounding For 1st Digit 100 - 5 Floor (0-4 -> 0, 5-9 -> 5) 0 - Rounding 101 - Truncate 1st Digit 1 - Truncation
Manual Tare Clear
0 - Allow 1 - Inhibit
18
Bit 0
00 - +-10% FS 01 - +-5% FS
*V1.06 10 - +-3% FS 11 - +-2% FS
Page No. 13
011 - UK type 100 - Japan type *V1.02 100 ~ 111 - Not Used
0 - Inhibit 1 - Allow
*V1.01
0 - Inhibit 1 - Allow
Re-Zero Function *V1.06 0 - Enable 1 - Disable
Not Used
DS-685L/F Series Service Manual 2.8. Location Of Sealing Screw DS-685 provides two sealing positions for the purpose of sealing as shown in the diagram below.
Page No. 14
DS-685L/F Series Service Manual 3. Error Message The following error message will appear when a incorrect operation is performed. Message
Reasons
Appropriate
OF
When displayed weight exceeded capacity+9d, or something is on the platter when power on.
Remove the item on the platter.
UF
When displayed minus weight < -9d
Re-Zero or On/Off again, if still no good please check the Load Cell or A/D board are problem or not.
ERROR
When calibration operation is not correct, or A/D starting check error.
Repeat calibration operation, if still no good please check the load cell or A/D board are problem or not.
#####
Scale is not steady when power on
Place scale on firm, flat base. If still no good please try to recalibrate it.
totAL FULL
When current Total overflow.
Clear current Total, or check the memory chip.
G.t. FULL
When Grand Total overflow.
Clear Grand Total, or check the memory chip.
(*Note)
Note: “ # # # # # ” - All segment display. If you still cannot remove the trouble what you met according to above information, please contact to our Technical Service Dept. as cover page indicated.
Page No. 15
DS-685L/F Series Service Manual 4. Hardware Detail 4.1. DS-685L 4.1.1. NRFI Electrical Connection Block Diagram
4.1.2. RFI Electrical Connection Block Diagram
Page No. 16
DS-685L/F Series Service Manual 4.1.3. Microcomputer Pin Assignment The uPD75P308GF/uPD75308GF Microcomputer was chosen for the following reasons: z
Low operating current
z
Having an on-chip programmable LCD controller/driver
z
Six interrupt sources and efficient interrupt processing
z
Three versatile timers
z
Less chip count
z
Pin compatibility of similar package with difference ROM sizes
z
Good support Pin
I/O
Assignment
Device
Remark
P01/SCK
O
SCK
93C46P
EEPROM
P02/SO
O
S0
93C46P
EEPROM
P03/SI
I
SI
93C46P
EEPROM
P10/INT0
I
SPANSW
SWITCH
Span Enable/Disable
P11/INT1
I
A/D INT
uPC4062
A/D Conversion Interrupt
P12/INT2
I
BATTERY DETECT 1
uPC393C
Detects battery Voltage Level 1
P13/TI0
I
BATTERY DETECT 2
uPC393C
Detects battery Voltage Level 2
P20/PTO0
O
A/D CONTROL
74HC4066
A/D Conversion Control
P00/INT4
P21
O
A/D CONTROL
74HC4066
A/D Conversion Control
P22/PCL
O
A/D CONTROL
74HC4066
A/D Conversion Control
P23/BUZ
O
A/D CONTROL
74HC4066
A/D Conversion Control
P30
O
CS
93C46P
EEPROM
P31
O
MAIN POWER ON/OFF
Power Switch
DC MAIN POWER
P32
O
BUZZ
Buzzer
Buzzer Sounder
P40
O
T8
Keyboard
Key Scanning Line
P41
O
T1
Keyboard
Key Scanning Line
P42
O
T2
Keyboard
Key Scanning Line
P43
O
T3
Keyboard
Key Scanning Line
P50
O
T4
Keyboard
Key Scanning Line
P51
O
T5
Keyboard
Key Scanning Line
P52
O
T6
Keyboard
Key Scanning Line
P33
P53
O
T7
Keyboard
Key Scanning Line
P60/KR0
I
K1
Keyboard
Key Return Line
P61/KR1
I
K2
Keyboard
Key Return Line
P62/KR2
I
K3
Keyboard
Key Return Line
P63/KR3
I
K4
Keyboard
Key Return Line
P70/KR4
I
K5
Keyboard
Key Return Line
S0
O
SEGMENT 0
T195013
Segment Signal Output
S1
O
SEGMENT 1
T195013
Segment Signal Output
S2
O
SEGMENT 2
T195013
Segment Signal Output
P71/KR5 P72/KR6 P73/KR7
Page No. 17
DS-685L/F Series Service Manual Pin
I/O
Assignment
Device
Remark
S3
O
SEGMENT 3
T195013
Segment Signal Output
S4
O
SEGMENT 4
T195013
Segment Signal Output
S5
O
SEGMENT 5
T195013
Segment Signal Output
S6
O
SEGMENT 6
T195013
Segment Signal Output
S7
O
SEGMENT 7
T195013
Segment Signal Output
S8
O
SEGMENT 8
T195013
Segment Signal Output
S9
O
SEGMENT 9
T195013
Segment Signal Output
S10
O
SEGMENT 10
T195013
Segment Signal Output
S11
O
SEGMENT 11
T195013
Segment Signal Output
S12
O
SEGMENT 12
T195013
Segment Signal Output
S13
O
SEGMENT 13
T195013
Segment Signal Output
S14
O
SEGMENT 14
T195013
Segment Signal Output
S15
O
SEGMENT 15
T195013
Segment Signal Output
S16
O
SEGMENT 16
T195013
Segment Signal Output
S17
O
SEGMENT 17
T195013
Segment Signal Output
S18
O
SEGMENT 18
T195013
Segment Signal Output
S19
O
SEGMENT 19
T195013
Segment Signal Output
S20
O
SEGMENT 20
T195013
Segment Signal Output
S21
O
SEGMENT 21
T195013
Segment Signal Output
S22
O
SEGMENT 22
T195013
Segment Signal Output
S23
O
SEGMENT 23
T195013
Segment Signal Output
BP0/S24
O
SEGMENT 24
T195013
Segment Signal Output
BP1/S25
O
SEGMENT 25
T195013
Segment Signal Output
BP2/S26
O
SEGMENT 26
T195013
Segment Signal Output
BP3/S27
O
SEGMENT 27
T195013
Segment Signal Output
BP4/S28
O
SEGMENT 28
T195013
Segment Signal Output
BP5/S29
O
SEGMENT 29
T195013
Segment Signal Output
BP6/S30
O
SEGMENT 30
T195013
Segment Signal Output
BP7/S31
O
SEGMENT 31
T195013
Segment Signal Output
COM0
O
COMMON 0
T195013
Common Signal Output
COM1
O
COMMON 1
T195013
Common Signal Output
COM2
O
COMMON 2
T195013
Common Signal Output
COM3
O
COMMON 3
T195013
Common Signal Output
BIAS
O
BIAS
-
LCD Drive Power Supply
VLC0
-
VLC0
-
LCD Drive Power Pin
VLC1
-
VLC1
-
LCD Drive Power Pin
VLC2
-
VLC2
-
LCD Drive Power Pin
RESET
I
RESET
-
SYSTEM RESET
X1
I
-
Oscillator
4.19 MHz Crystal
X2
I
-
Oscillator
4.19 MHz Crystal
XT1
I
-
-
Connect To The VSS Pin
-
-
-
Grounding Potential Pin
XT2 VSS VDD
-
-
-
Positive Power Pin (5V)
NC/VPP
-
-
-
Connect To The VDD Pin
Page No. 18
DS-685L/F Series Service Manual 4.2. DS-685F 4.2.1. NRFI Electrical Connection Block Diagram
4.2.2. RFI Electrical Connection Block Diagram
Page No. 19
DS-685L/F Series Service Manual 4.2.3. Microcomputer Pin Assignment The uPD75P216A/uPD75212A Microcomputer was chosen for the following reasons: z Low operating current. z Having an on-chip programmable FIP controller/driver. z Eight interrupt sources and efficient interrupt processing. z Four versatile timers. z Less chip count. z Pin compatibility of similar package with difference ROM sizes. z Good support. Pin
I/O
Assignment
Device
Remark
P00/INT4
I
ON/OFF
ON/OFF KEY
Detects ON/OFF Key Status
P01/SCK
O
SCK
93C46P
EEPROM
P02/SO
O
S0
93C46P
EEPROM
P03/SI
I
SI
93C46P
EEPROM
P10/INT0
I
A/D INT
uPC4062
A/D Conversion Interrupt
P11/INT1
I
VPAC
L7815
Detects AC Power ON
P12/INT2
I
* VBATL2
LM324
Detects BATT Low 2
P13/TI0
I
TI0
74HC4520
External Event Pulse Input
P20
O
CS
93C46P
EEPROM
P21
O
FIP-PW
FIP-PW
Controls FIP Power
P22
O
RES
74HC4520
Controls 74HC4520 Reset
P23/BUZ
O
BUZZ
Buzzer
Buzzer Sounder
P30
I
* VBATL1
LM324
Detects BATT Low 1
P31
I
EN
74HC4520
Controls 74HC4520 EN
P32
O
* BAT-CHG
BAT-CHG
Controls BATT Charge
P33
O
* BAT-PW
BAT-PW
Controls BATT Power
P40
O
A/D PA
74HC4066
Controls A/D Conversion
P41
O
A/D PZ
74HC4066
Controls A/D Conversion
P42
O
A/D P-
74HC4066
Controls A/D Conversion
P43
O
A/D P+
74HC4066
Controls A/D Conversion
P50
I
Q0
74HC4520
Input data
P51
I
Q1
74HC4520
Input data
P52
I
* VBATLH2
LM324
Detects BATT High Level2
P53
I
* VBATLH1
LM324
Detects BATT High Level1
P60
I
K1
Keyboard
Key Return Line
P61
I
K2
Keyboard
Key Return Line
P62
I
K3
Keyboard
Key Return Line
P63
I
K4
Keyboard
Key Return Line
S0
O
P17
19-LT-03GK
Segment Signal Output
S1
O
P16
19-LT-03GK
Segment Signal Output
S2
O
P15
19-LT-03GK
Segment Signal Output
S3
O
P14
19-LT-03GK
Segment Signal Output
S4
O
P13
19-LT-03GK
Segment Signal Output
S5
O
P12
19-LT-03GK
Segment Signal Output
S6
O
P11
19-LT-03GK
Segment Signal Output
S7
O
P10
19-LT-03GK
Segment Signal Output
S8
O
P9
19-LT-03GK
Segment Signal Output
S9
O
P8
19-LT-03GK
Segment Signal Output
Page No. 20
DS-685L/F Series Service Manual Pin
I/O
Assignment
Device
Remark
T15/S10
O
T1
19-LT-03GK
Digtal SignalOutput
T14/S11
O
T2
19-LT-03GK
Digtal SignalOutput
T13/S12
O
T3
19-LT-03GK
Digtal SignalOutput
T12/S13
O
T4
19-LT-03GK
Digtal SignalOutput
T11/S14
O
T5
19-LT-03GK
Digtal SignalOutput
T10/S15
O
T6
19-LT-03GK
Digtal SignalOutput
T9
O
U1
19-LT-03GK
Digtal SignalOutput
T8
O
U2
19-LT-03GK
Digtal SignalOutput
T7
O
U3
19-LT-03GK
Digtal SignalOutput
T6
O
U4
19-LT-03GK
Digtal SignalOutput
T5
O
U5
19-LT-03GK
Digtal SignalOutput
T4
O
W1
19-LT-03GK
Digtal SignalOutput
T3
O
W2
19-LT-03GK
Digtal SignalOutput
T2
O
W3
19-LT-03GK
Digtal SignalOutput
T1
O
W4
19-LT-03GK
Digtal SignalOutput
T0
O
W5
19-LT-03GK
Digtal SignalOutput
VPRE
-
VPRE
-
Power Supply
VLOAD
-
VLOAD
-
Pull-down Resistor Pin
PPO
O
SC
93C46P
Output Pulse
RESET
I
RESET
-
SYSTEM RESET
X1
I
-
Oscillator
4.19 MHz Crystal
X2
I
-
Oscillator
4.19 MHz Crystal
XT1
I
-
-
Connect to VDD Pin
VSS
-
-
-
Gounding Potential Pin
VDD
-
-
-
Positive Power Pin (5V)
XT2
Note: '*' - For Rechargeable Battery type only.
Page No. 21
DS-685L/F Series Service Manual 5. Circuitry Diagram We can not issue the electrical file for Circuitry Diagram, so please contact to us for paper copy if you need it. Thanks for your cooperation!
Page No. 22