Vibra AJ Series Service Manual
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Vibra AJ Series Service Manual

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Summary of Contents for Vibra AJ Series

  • Page 1 All manuals and user guides at all-guides.com AJ(H) Series Service Manual...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com Contents SECTION 1 TOTAL VIEW 1‑1 TOTAL VIEW OF AJ TYPE ・・・・・・・・・・・・・・1 1‑2 TOTAL VIEW OF AJH TYPE・・・・・・・・・・・・・・1 SECTION 2 ELECTRONIC CONSTRUCTION 2‑1 BLOCK DIAGRAM ・・・・・・・・・・・・・・・・・・2 2‑2 WHOLE WIRING・・・・・・・・・・・・・・・・・・・3 SECTION 3 TROUBLESHOOTING 3‑1 TROUBLESHOOTING PROCEDURE ・・・・・・・・・・・・4 3‑2 TROUBLESHOOTING TABLE ・・・・・・・・・・・・・・5 3‑3 PRIMARY CHECKS・・・・・・・・・・・・・・・・・・6 3‑4 CHECKS FOR ELECTRIC/ELECTRONIC PARTS・・・・・・・7...

  • Page 3: Total View

    All manuals and user guides at all-guides.com SECTION 1 Total View 1-1 TOTAL VIEW OF AJ TYPE - 220〜1200g - 1-2 TOTAL VIEW OF AJH TYPE - 220〜620g ,2200g,4200g-...

  • Page 4: Electronic Construction

    All manuals and user guides at all-guides.com SECTION 2 ELECTRONIC CONSTRUCTION 2-1 BLOCK DIAGRAM AJ,AJH AC Ad ap to r A JH o nly AJIF CIRCUIT MECH AN ISM ＡＪ Ｈ BOARD UN IT C a lib rat ion W e igh t U n it (A J H o n ly) AJ LF C IRCU IT B OA RD...

  • Page 5: Whole Wiring・・・・・・・・・・・・・・・・・・・3

    All manuals and user guides at all-guides.com 2-2 WHOLE WIRING AJ,AJH A J LF A JIF CIRC U IT C IR CU IT B O A R D B O A R D CN１ CN２ AJH only Battery Unit Option MECHANISM UNIT Ａ...

  • Page 6: Section 3 Troubleshooting

    All manuals and user guides at all-guides.com SECTION 3 TROUBLESHOOTING 3-1 TROUBLESHOOTING PROCEDURE...

  • Page 7: Troubleshooting Table ・・・・・・・・・・・・・・5

    All manuals and user guides at all-guides.com 3-2 TROUBLE SHOOTING TABLE SYMPTOMS CAUSES & REMEDY No display lights on 1. AJDP board is defective. 2. AC adaptor is defective. 3. Wrong connection of connection cords inside. Built-in battery (option) is discharged. 1.

  • Page 8: Primary Checks・・・・・・・・・・・・・・・・・・6

    All manuals and user guides at all-guides.com SYMPTOMS CAUSES & REMEDY Corner error is too 1. Mechanism unit is defective, such as Roberval plate (Spring) has been bent or twisted . much. 2. pan base touches other parts. Display suddenly 1.

  • Page 9: Checks For Electric/Electronic Parts・・・・・・・7

    All manuals and user guides at all-guides.com 3-4 CHECKS FOR ELECTRIC/ELECTRONIC PARTS - AJDP Circuit board - Checks for electric/electronic parts are to be ca rried out on back of AJ DP board after removing the upper case, at test Points and Pins of C N1, CN4, TP4 AND TP6.

  • Page 10: Adjustment And Setting

    All manuals and user guides at all-guides.com SECTION 4 ADJUSTMENTS AND SETTINGS 4-1 SPAN CALIBRATION (CAL) 1. AJ Type 1. It is recommended to use a calibration weight of better accuracy than the scale. 2. The calibration is available with 1/2 of F.S. Nevertheless, it is recommend to us weight closer to F.S.
  • Page 11 All manuals and user guides at all-guides.com 2. AJH Type...

  • Page 12: Lock Switch ・・・・・・・・・・・・・・・・・・・10

    All manuals and user guides at all-guides.com 4-2 LOCK SWITCH [For AJ(H)-CE Type] Set the lock switch to "Locked" before stamping or sealing so that the user is unable to change parameters or to calibrate the scale. Unlocked Locked...

  • Page 13: Corner Error Adjustment ・・・・・・・・・・・・・11

    All manuals and user guides at all-guides.com 4-3 CORNER ERROR ADJUSTMENT 4-3-1 AJ-220〜1200 Remove the case referring to 5-1. Place the pan base, then place the weighing pan on the mechanism. Adjust the level. Remove fixing screw on AJDP board and unplug connector with CN4 on AJDP board.
  • Page 14 All manuals and user guides at all-guides.com 4-3-2 AJ-2200〜12K Corner adjusting bolt (B) Corner adjusting bolt (A)

  • Page 15: Adjustment Sequence For Cases ・・・・・・・・・・13

    All manuals and user guides at all-guides.com 4-4 ADJUSTMENT SEQUENCE FOR CASES CASES 1. AJ Type (1) Incase that address memories changed or lost by accidental noises or static electricity. Or, after replacement of AJDP circuit board. (2) After replacement of weighing mechanism unit.

  • Page 16: Resetting Address Data・・・・・・・・・・・・・・14

    All manuals and user guides at all-guides.com 4-5 RESETTING ADDRESS DATA (Coefficients) When memories of address data are changed or lost by some reasons, such as by replacement of PCB, or by noises or static electricity, re-set original data by following procedure. 1.
  • Page 17 All manuals and user guides at all-guides.com 3. How to call address mode / How to re-write address data...

  • Page 18: Linearity Adjustment・・・・・・・・・・・・・・・16

    All manuals and user guides at all-guides.com 4-6 LINEARITY ADJUSTMENT 1. How to adjust Linearity...
  • Page 19 All manuals and user guides at all-guides.com 2. Table Increasing Calibration Weight for Linearity Adjustment ( ) : Cumulative total of weights on the scale *Please use the weight for F1 (OIML R-111) or higher class to maintain the accuracy.

  • Page 20: Calibration Of Built-In Weight・・・・・・・・・・18

    All manuals and user guides at all-guides.com 4-7 CALIBRATION OF BUILT-IN WEIGHT (REF CAL) - AJH TYPE - ・Following does not describe the procedure of ordinary span calibration. ・This is the procedure of Calibration of the built-in weight with AJH, scales.
  • Page 21 All manuals and user guides at all-guides.com CAUTIONS (1) [ ] must be carried out in following cases: ① When built-in weight is added or replaced. ② When linearity adjustment is done. ③ When AJDP board is replaced. (2) The quality/tolerance of the reference weight determine the accuracy of the scale.

  • Page 22: Parts Replacement

    All manuals and user guides at all-guides.com SECTION 5 PARTS REPLACEMENTS 5-1 HOW TO REMOVE THE CASE 5-1-1 AJ-220〜1200 (1) Unplug the AC adaptor. Remove the pan and pan base. (2) Remove case fixing screw with a screwdriver. (3) Locate two hooks beneath the scale near to front. Pull those two hooks toward you to lift the case up, then shift the case to rear to release it from hooks.

  • Page 23: How To Cover The Case ・・・・・・・・・・・・・・21

    All manuals and user guides at all-guides.com 5-1-2 AJ-2200〜12K (1) Remove the weighing. (2) Remove case fixing screw with a (+) screwdriver. (2 places in the top and 1 place in the chassis) 5-2 HOW TO COVER THE CASE 5-1-1 AJ-220〜1200 (1) Cover the scale with the case, seeing cables are just stored inside properly.

  • Page 24: Sequence Of Mechanism Unit Replacement・・・・・・22

    All manuals and user guides at all-guides.com 5-3 SEQUENCE OF MECHANISM UNIT REPLACEMENT 5-3-1 How to Remove Weighing Mechanism Unit 5-3-1-1 AJ-220〜1200 (1) Remove the case referring to 5-1 (2) Remove four sensor cover fixing screw. (3) Remove Wires to the Tuning-fork sensor, by welding solders at AJDP circuit board.
  • Page 25 All manuals and user guides at all-guides.com ※ For AJH series (With-internal-calibration type), refer to section 5-6 (5) Remove three mechanism unit fixing screws (6) Remove the mechanism unit by holding at the chassis. Mechanism Unit Fixing Screws 5-3-1-2 AJ-2200〜12K (1) Remove the case referring to 5-1 (2) Remove Wires to the Tuning-fork sensor, by welding solders at AJDP circuit board.
  • Page 26 All manuals and user guides at all-guides.com ※ For AJH series (With-internal-calibration type), refer to section 5-6 (5) Remove fore mechanism unit fixing screws. (6) Remove (cut) the cord band. (7) Remove the mechanism unit by holding at the chassis. Cord Band ④...

  • Page 27: Sequence Of Tuning-Fork Sensor Replacement・・・・25

    All manuals and user guides at all-guides.com 5-4 SEQUENCE OF TUNING-FORK SENSOR REPLACEMENT 5-5 SEQUENCE OF THE AJDP CIRCUIT BOARD REPLACEMENT...
  • Page 28 All manuals and user guides at all-guides.com 5-5-1 How to Remove AJDP circuit board (1) Remove the case referring to 5-1 (2) Remove Wires to the Tuning-fork sensor, by welding solders at AJDP circuit board. (3) Remove the AJDP circuit board fixing screw. (4) Unplug connectors at CN1, CN4 (and CN3 with AJH-CE) on AJDP board.

  • Page 29: How To Remove Calibration Weight Unit ・・・・・・27

    All manuals and user guides at all-guides.com 5-6 HOW TO REMOVE CALIBRATION WEIGHT UNIT 5-6-1 AJ-220〜1200 1. Remove the CN3 connector. (removing AJDP P.C.B. in advance makes it easy to do it.) 2. Remove (Cut) the cord band. 3. Unscrew at two points. connector Cord band Fixing screws...
  • Page 30 All manuals and user guides at all-guides.com ②Remove the weight holder Weight Holder Fixing Screw Fixing Screw ③Remove the side ring and disassemble the weight Weight Fixing Screw Side Ring ④Remove the weight shaft from the mechanical main unit. Weight Shaft...

  • Page 31: How To Install Calibration Weight Unit・・・・・・29

    All manuals and user guides at all-guides.com 5-7 HOW TO INSTALL CALIBRATION WEIGHT UNIT Follow the instruction in 5-6 by the opposite order. Refer to the position for the installation below.

  • Page 32: Installation Options

    All manuals and user guides at all-guides.com SECTION 6 INSTALLATION OPTIONS 6-1 INSTALLATION OF BATTERY OPTION 6-1-1 AJ-220〜1200 (1) Remove the case referring to 5-1 (2) Plug AJ battery cord to CN5 on AJDP board. (3) Install AJ battery Holder Assy. AJDP board AJBT Assy (4) Cover the scale and stick the battery label above power jack...
  • Page 33 All manuals and user guides at all-guides.com 6-1-2 AJ-2200〜12K (1) Remove the case referring to 5-1 (2) Plug AJ battery cord to CN5 on AJDP board. (3) Fasten the AJM battery held together into the nylon-clamp which has holed the cord of the AJMIF circuit board assy Nylon Clamp AJDP Circuit Board...

  • Page 34: Parts List

    All manuals and user guides at all-guides.com SECTION 7 PARTS LIST 7-1 AJ-220〜1200 ⑰-1 ⑰-2 ⑰-3 ⑰-5 ⑰-7 ⑰-6 ⑰-8 ⑲-1 ⑮-1 ⑫-2 ⑫-3 ③-51 ①-3...
  • Page 35 All manuals and user guides at all-guides.com...

  • Page 36: Aj-2200〜12K・・・・・・・・・・・・・・・・・・・34

    All manuals and user guides at all-guides.com 7-2 AJ-2200〜12K ⑩ ⑬ ⑫ ⑨ ⑪ ⑧ ③...
  • Page 37 All manuals and user guides at all-guides.com...

This manual is also suitable for:

Ajh seriesAj-220Aj-1200

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