MinXray HF100H Service Manual
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MinXray HF100H Service Manual

Portable x-ray unit
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This manual is established for repair･adjustment of the MinXray model HF100H portable x-ray
unit. Copy and transfer without notice is prohibited.
Section
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0-1
15.0-2
HF100H SERVICE MANUAL
Contents
26 June 2002.
Page
1
2
3
5
7
11
13
16
17
18
22
23
27
28
40
41

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Summary of Contents for MinXray HF100H

  • Page 1: Table Of Contents

    26 June 2002. HF100H SERVICE MANUAL This manual is established for repair･adjustment of the MinXray model HF100H portable x-ray unit. Copy and transfer without notice is prohibited. Section Contents Page Introduction Device history Specifications Operating procedures Pre-adjustment Re-adjustment of kV...

  • Page 2: Introduction

    MinXray, Inc., its agent and representatives, do not accept any responsibility for: Injury or danger to patient or other personnel from x-ray exposure or electrical shock.

  • Page 3: Device History

    Dangerous Voltage & Ionizing Radiation Adding the fixing metal for insert 23539 Adding the fixing metal for collimator 23539 Changed the insert for balance collimator 25150 (D-180HS-G) NOTE : The parts list is used from MinXray HF100H ( S/No. 25150)

  • Page 4: Specifications

    Maximum voltage consumption -------- 3.5kVA ±10% NOTE : This unit would be severely damaged if it is used with incorrect line voltage. Check the rating label on the HF100H for the correct input voltage for each unit. OUTPUT : Inverter : 120kHz high frequency inverter system with neutral ground circuit, 2kW ･...
  • Page 5 NOTE: Please refer to Collimator Operator’s and installer’s manual ( Page 20) FILTRATION : inherent filtration 2.2mm Al collimator filtration 1.2mm Al total filtration 3.4mm Al WEIGHT : 20kgs SIZE : 29 cm (W) × 23.8 cm (H) × 45.5 cm (L) POWER CORD : 3.6 m EXPOSURE SWITCH :...

  • Page 6: Operating Procedures

    Time increments are 0.01 sec. per step. SOURCE-IMAGE DISTANCE: Use the tape measure on the side of the HF100H to confirm that the x-ray unit is positioned at the correct source-image distance (SID) for the view being taken.
  • Page 7 When the POWER SWITCH is pressed, all indicators on the control panel are off. WARNING LAMP : HF100H has 2 kinds of warning lamps. If either of them is lit, x-ray cannot be generated. Each detail is as follows. WARNING LAMP...

  • Page 8: Pre-Adjustment

    ※ Pull in and pull out connectors only with MAIN POWER OFF. ↑ ↓ 10mS ← → ※TIME BASE WAVEFORM NOTE : Please contact MinXray, Inc. ( Service Department ) if you need information of the special test equipment (HF Tester).
  • Page 9 REFFERENCE : There are three jumpers on M3108A (10SEC ,TEST and LBD) 10SEC : When jumper is put in, WARM UP time is 1 sec. DO NOT USE. When jumper is pulled out, it is 10 sec. This jumper is for adjustment at the factory before shipment. So, please don’t use the device with jumper.
  • Page 10 M9111 PC Board adjustment This adjustment has to be done after connecting all connectors completely. Actual x-ray exposure is not necessary. ※Each PC Board delivered from the factory has been already adjusted. 1. Adjustment of VR3 (DC370V) Adjust voltage between 370 (+) and GND (–) to be 368.5 – 372V by turning VR3. Voltage is increased by turning clockwise.
  • Page 11 M9112 PC Board adjustment This adjustment has to be done after connecting all connectors completely. Actual x-ray exposure is not necessary. ※Each PC Board delivered from the factory has been already adjusted. 1. Adjustment of FQ1 Adjust frequency between FQ1 (+) and GND (–) to be 120kHz by turning VR1. Frequency is increased by turning clockwise.

  • Page 12: Re-Adjustment Of Kv

    6.0 Re-adjustment of kV This adjustment has to be done after connecting all connectors completely. Actual exposure is necessary. NOTE : This adjustment requires that an exposure be made. Please observe all radiation related safety precautions. ※This adjustment should be done whenever Insert Box or Inverter PC Board (M9101B PCB) is replaced.
  • Page 13 5 – 1. Adjustment of 70kV by VR4 Adjust the ch1 (Ep) by VR4 to be 3.4V ±0.5V. kV is increased by turning clockwise. 5 – 2. Adjustment of 100kV by VR4 Adjust the ch1 (Ep) by VR4 to be 4.9V ±0.5V. kV is increased by turning clockwise.
  • Page 14 7. 0 Re-adjustment of Pre-heat and mA This adjustment has to be done after connecting all connectors completely. Actual exposure is necessary. NOTE : This adjustment requires that an exposure be made. Please observe all radiation related safety precautions. *This adjustment should be done whenever Insert Box or Inverter PC Board (M9112 PCB) is replaced.

  • Page 15: Re-Adjustment Of Pre-Heat Time And Ma

    6 –1. Adjustment of Pre-heat time 1. Pre-heat time is short. Make Pre-heat time longer by turning VR3 counterclockwise. 2. Pre-heat time is long. Make Pre-heat time shorter by turning VR3 clockwise. 3. Pre-heat time is appropriate. ※Acceptable limit : 20msec. 〜 40msec. -14-...
  • Page 16 6 –2 – 1. Adjustment of mA by VR5 ※Adjust average of peak values of IP waveform to be 1.9V by VR5. -15-...

  • Page 17: Readjustment Of Exposure Time

    8.0 Readjustment of exposure time This adjustment has to be done after connecting all connectors completely. Actual exposure is necessary. NOTE: This adjustment requires that an exposure be made. Please observe all radiation related safety precautions. Check the exposure time by using an external exposure time meter such as the VICTOREEN NERO.

  • Page 18: Sample Of Output Waveform

    9.0 Sample of output waveform Normal waveform 100kV ・  20mA -17-...

  • Page 19: Trouble Shooting Guide

    10.0-1 Trouble shooting Guide -18-...
  • Page 20 10.0-2 Trouble shooting Guide -19-...
  • Page 21 10.0-3 Trouble shooting Guide -20-...
  • Page 22 10.0-4 Trouble shooting Guide -21-...

  • Page 23: Wiring Diagram

    11.0 Wiring Diagram -22-...

  • Page 24: Schematic Diagram

    PCB M 3108 12.0-1 Schematic Diagram -23-...
  • Page 25 PCB M 3107 12.0-.2 Schematic Diagram -24-...
  • Page 26 PCB M 9111 12.0-3 Schematic Diagram -25-...
  • Page 27 PCB M 9112 12.0-4 Schematic Diagram -26-...

  • Page 28: Hf100H Parts List

    13.0 HF100H Parts List -27-...

  • Page 29: Collimax Collimator Operator's Installer's Manual

    14.0 Collimax Collimator operator’s installer’s manual -28-...
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  • Page 41: Pre-Adjustment With Hf Tester

    15.0-1 Pre-adjustment with HF Tester -40-...

  • Page 42: Pre-Adjustment Without Hf Tester

    15.0-2 Pre-adjustment without HF Tester ※ Each PC Board delivered from the factory has already been adjusted. 1. M3108A adjustment (Refer to page 8 ) kV adjustment : kV is decreased by turning VR1 clockwise. 1. Set the kV selector to 100kV. 2.

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