Instrumentarium Dental OP-100 Service manual

Orthopantomograph® OP100 & OP100 D Orthoceph® OC100 & OC100 D

Electrical Operation & Wiring Manual

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Orthopantomograph

and Orthoceph® are registered trademarks of Instrumentarium Dental. U.S. patents 4,641,336; 5,016,264; 5,425,065, 5,444,754, 6,731,717 and 6,829,326. German patent 4,344,745. Finnish patents 112594 and 114383.

Orthopantomograph

and Orthoceph® are registered trademarks of Instrumentarium Dental. U.S. patents 4,641,336; 5,016,264; 5,425,065, 5,444,754, 6,731,717 and 6,829,326. German patent 4,344,745. Finnish

patents 112594 and 114383. Windows

is trademark of Microsoft Corporation in the United States of America and other countries. Pentium is a registered trademark of Intel Corporation. Iomega® Jaz® is a registered trademark of Iomega Corp.

Documentation, trademark and the software are copyrighted with all rights reserved. Under the copyright laws the documentation may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form in whole or part, without the prior written permission of Instrumentarium Dental.

The original language of this manual is English.

Instrumentarium Dental reserves the right to make changes in specification and features shown herein, or discontinue the product described at any time without notice or obligation. Contact your Instrumentarium Dental representative for the most current information.

Manufactured by Instrumentarium Dental

P.O. Box 20 FI-04301 Tuusula FINLAND Tel. +358 45 7882 2000 Fax. +358 45 7882 2506

For service, contact your local distributor.

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Table of Contents

1 Electrical operation, schematics and layouts .................................................... 1

1.1 Electrical block diagrams.............................................................................................................................1

1.2 Wiring diagram.................................................................................................................................................2

1.3 Primary electronics .........................................................................................................................................2

1.4 Power supply board (CODE 60113)..........................................................................................................2

1.4.1 Line voltage jumper...................................................................................................................................... 3

1.4.2 High voltage section...................................................................................................................................... 3

1.4.3 Low voltage section....................................................................................................................................... 3

1.5 C167 CORE MODULE (CODE 60244)........................................................................................................4

1.6 Digital I/O Board (60229) ..............................................................................................................................5

1.7 Interface Board (CODE 60166)...................................................................................................................8

1.8 X-ray generator ................................................................................................................................................9

1.9 Filament Control Board (CODE 60114)................................................................................................10

1.10 Inverter board (CODE 60115)..................................................................................................................13

1.11 Tube head assembly (CODE 66360) .....................................................................................................15

1.12 Automatic Exposure Control (AEC) Board

(CODE 60122) ..................................................................................................................................................15

1.13 PAN AEC terminal Board (CODE 60247)..............................................................................................16

1.13.1 PAN Automatic Exposure Control (AEC)..............................................................................................17

1.14 Panorama & cephalometric camera

(digi only) ...........................................................................................................................................................18

1.15 Camera power supply Board (CODE 60197)

(DIGI ONLY) .......................................................................................................................................................19

1.16 Ceph terminal Board (Code 60191)

(DIGI ONLY) .......................................................................................................................................................20

1.16.1 Nasio -frequency adjustment.................................................................................................................21

1.17 Ceph head Board (CODE 60243)

(DIGI ONLY) .......................................................................................................................................................22

1.18 Beam alignment Board (CODE 60249)

(DIGI ONLY) .......................................................................................................................................................22

1.19 PCI Board (CODE 60187) AND fibre cable (CODE 69061)

(DIGI ONLY) .......................................................................................................................................................24

2 Other components .................................................................................................27

2.1 CONTROL PANELS (CODE 64105 FOR FILM AND

64104 FOR DIGITAL).....................................................................................................................................27

2.2 Patient positioning panel (CODE 60218).............................................................................................28

2.3 Head support lock ........................................................................................................................................29

2.4 Halogen positioning lights........................................................................................................................29

2.5 Ortho Trans positioning lights.................................................................................................................30

2.6 FH laser light (digi only) ..............................................................................................................................30

2.7 Remote exposure control..........................................................................................................................30

2.8 Ceph soft tissue display (film only)........................................................................................................31

2.9 Ceph soft tissue automatic adjustment

(digi only) ...........................................................................................................................................................31

2.10 Ceph nose support.......................................................................................................................................31

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2.11 Up/down panel (CODE 60193) + UP/DOWN SWITCH (CODE 60143)

(DIGI ONLY) .......................................................................................................................................................31

2.12 Cephalostat L/R coding..............................................................................................................................32

3 Overview of Digital Image Capture ....................................................................33

3.1 Operation Overview.....................................................................................................................................33

3.2 Digital parts overview.................................................................................................................................39

4 List of documents...................................................................................................41

4.1 Common film and digital unit documents ........................................................................................41

4.2 Film unit documents....................................................................................................................................41

4.3 Digital unit documents...............................................................................................................................41

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1 Electrical operation, schematics and layouts

1 Electrical operation, schematics and

layouts

1.1 ELECTRICAL BLOCK DIAGRAMS

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1 Electrical operation, schematics and layouts

WARNING!

NOTE!

1.2 WIRING DIAGRAM

Copies of OP100 Wiring diagrams, see section “List of Documents”.

1.3 PRIMARY ELECTRONICS

1-phase electric power is fed through a 3-pole cable to the column where the cable goes inside the right side groove to the vertical carriage (connectors X101 and X122). Line filter is located under the lower shelf. Line filter ground is connected to the incoming 3-pole cable ground. Flat connectors or fixed screws are used. The line filter type with CE-marking: type S-124-10 or NM-240-10 (code 69025).

Always make sure OP100 D has a good protective ground.

Main switch with power on indicator light is located under the vertical carriage. Main fuses are located below the vertical carriage. Both F1 and F2 are slow blow type for incoming main voltage 230 VAC:

In USA/Canada 15AT fuses are used also with 230 VAC rating.

1.4 POWER SUPPLY BOARD (CODE 60113)

Power Supply Board rectifies AC voltages and filters the unregulated DC voltages. Power Supply Board consists of two main parts: low voltage and high voltage parts.

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1 Electrical operation, schematics and layouts

WARNING!

Voltages in high voltage part of the power supply board can be deadly. The peak-to-peak voltage level normally exceeds 600 V.

1.4.1 Line voltage jumper

Jumper S2 is for setting the unit to local line voltage:

S1 switches the rectifier V4 to the 1500uF capacitors C1 and C2, located above the Power Supply Board, to be full-wave rectified (230 VAC).

It also connects the primary coils of the line transformer TF1 & TF2 parallel (230 VAC).

The line voltage selection jumper must always be at the correct position; left for 230 VAC.

1.4.2 High voltage section

In high voltage section (upper half of the PC board) there is a rectifier D 4 for line voltage and loading circuitry K1-K2-R6 for two capacitors C1 and C2, which are connected to the PC board through connector X22.

1.4.3 Low voltage section

In low voltage section (= lower half of the PC board) there are fuses, rectifiers and filter capacitors for low operating voltages:

• 24 VAC (from transformer TF1) is fused by F2, rectified by D5 (to +34 V) and filtered by C3-C4-C5.

• 18 VAC (from transformer TF2) is fused by F3, rectified by D6 (to +25 V) and by D7 (to -25 V) and filtered by C7-C8.

• 12 VAC (from transformer TF2) is fused by F1.

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1 Electrical operation, schematics and layouts

NOTE!

POWER SUPPLY BOARD FUSES

FUSE RATING FUNCTION SIZE

F1 6.3 AT or

+12 VAC 6.3 x 32 mm

10 AT

F2 6.3 AT +34 VAC 6.3 x 32 mm

F3 2 AT +25 V,

6.3 x 32 mm

-25 V

F1 with 10 AT rating is needed, if the OP100 has with 5 projectors for double side patient positioning.

List of indicators and test points, see Service Manual: Trouble Shooting.

1.5 C167 CORE MODULE (CODE 60244)

OP100/OP100 D is a microprocessor controlled equipment. Core Module monitors control it’s all movements and other operations, except the head support lock operation and ceph soft tissue display (in OP100). All key inputs, microswitches and optocouplers are read by the Core Module. Accordingly the Core Module controls all operations by supplying control signals through it's input/output. Core Module is connected to other boards through Digital I/O Board (60229). X902 connects module to Digital I/O Board.

Fig 1.1. C167 Core Module Block Diagram.

SAB-C167CR-LM (ICD6) is 16-bit microcontroller. Program is stored in 8 Mbit flash ICD1. 5 MHz clock frequency is multiplied internally by four to get operating frequency 20 MHz.

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1 Electrical operation, schematics and layouts

Core Module has different digital and analog ground. They are connected to each other by R30.

During voltage startup or at reset configuration is loaded to ICD6. ICD7-8, RN1, RN6, R23, R1, R5, R6, R9 and S2-E are used for configuring. When /RST from ICD3 goes low it enables ICD7 and 8 which load configuration to bus. ICD6 reads the configuration values at the end of the internal reset sequence. The rising edge of /ALE sets ICD7 and 8 to high impedance state after configuration. Default values are: clock multiply by four, 16 bit demultiplexed data bus, no bootstrap, /WR and /BHE control, two chip select lines (/CS0 and /CS1), 1 Mbyte directly accessible address space.

For details of configuration see C167CR Derivatives User's manual.

X901 can be used to load program to Core Module. X903 is a CAN connector. Core Module includes CAN driver.

DIL switch S2 settings are the same in all OP units.

1-4 must be ON and 5-8 OFF. Their functions are presented in schematics.

Push button switch S1 can be used to RESET the microcontroller.

RESET CIRCUIT

ICD3 (MAX823) is a watchdog RESET generator. During startup ICD resets the microcontroller. ICD3 has also a "watchdog" feature. If the software does not frequently generate pulses in /WD signal, ICD3 activates the RESET signal. Switch S1 can also be used to generate RESET.

RS232

Driver that converts C167 serial data to RS232 voltage levels is located in Digital I/O Board.

+5V VOLTAGE REGULATOR

6V is fed from Digital I/O Board. Linear regulator ICA1 regulates it to 5V.

Reference Voltage

Reference voltage is made by ICA2. It is 4.096V.

LEDS

H2 Green lit when supply voltage 5V is on. H1 Red lit when ICD6 is in reset.

1.6 DIGITAL I/O BOARD (60229)

Digital I/O Board forms interface between Core Module and other boards.

Supply Voltages

Switcher ICA1 (L4971) is used to convert 25V input to 5V required by the board and 6V to Core Module.

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Grounding

There are three separate ground levels in the I/O Board. The actual I/O board ground level (GND for +5V). The generator ground-level from Filament Control Board and Inverter Board (from connector X 4, pins 22, 23, 25 and 26). Connected to several optoisolators. Signals from Control Panel are filtered to the ground level which is connected to chassis at the left hand lower corner of the IO-board to reduce common mode interference at control panel cable.

Signals with different GND levels are isolated by optoisolators to eliminate noise and RF interference problems, but connected inside the Tube Head Assembly and in the Power Supply Board.

PARALLEL INPUTS/OUTPUTS

I/O from I/O drivers to connectors is buffered and protected according to use:

• Relay drives and control panel signals are buffered by ICD34 (2803, Darlington driver).

• Signals to x-ray generator (Filament Drive Board, Inverter Board and Tube Head Assembly) and signal AECFRQ are optoisolated by quadoptoisolators.

• Rest of the output signals are driven by line driver HCT245 and protected by serial resistors.

SWITCHES:

SERVICE JUMPER X90 pins 3 and 4

Service switch is connected to pins 3 and 4 at connector X90. If pushed and keep pressed during reset or voltage startup it brings service programs available.

OPTION JUMPER X11

Jumper X11 is an option switch, normally in "off" position. When switched "on", the OP100 can be demonstrated normally, but the exposure is prevented. This feature can be used eg. in exhibitions.

Figure: X11 in ON position, XRAYS prevented.

X14

Program options in Core Module.

X15

L position, cephalo on left side.

R position, cephalo on right side.

JP1-3

These are used to select RS232 routing. In OP100/OP100 D they must be in A position.

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Signals at A position

INPUT OUTPUT

TXD0 X10-52 X12-5, X3-4 Select=1

TXD0 X10-52 X3-1 Select=0

RXD2 X12-6 X10-53 Select=1

rXD1 X3-2 X10-53 Select=0

rXD2 X3-5 X10-53 Select=1

In B position RXD and TXD from X12 and X10 go to X3.

SPI

SPI interface is used between Core Module and Digital I/O board to reduce the number of connections. Serial data from Core Module is loaded to ICD28 and outputs are then buffered by HCT245 line drivers. Respectively a part of signals (for example microswitch states) are fed as serial data to Core Module.

SPI_SELECT is used to select data source. When 0 data to Core is from ICD17 and from Core to ICD28. When 1 data is read and written to control panel.

S1 settings

Fig 1.2. Service switch

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Switch Function Setting

1 (A) Film/Digital OP selection OFF=FILM, ON=DIGITAL

2 (B) COL3SW OFF, not used with 69088

cable

3 (C) COL2SW OFF, not used with 69088

cable

4 (D) COL1SW OFF, not used with 69088

cable

5 (E) NOT CONNECTED

6 (F) NOT CONNECTED

7 (G) NOT CONNECTED

8 (H) CAEFRQ ON in digital OP, off in film

1.7 INTERFACE BOARD (CODE 60166)

Interface Board contains driver circuits for stepper motors, DC motors, driver projector and warning lights, under the control of C167 core module.

STEPPER MOTOR DRIVERS

Stepper motor drivers ICA’s 2, 7 & 11 (PMB 3690) convert incoming frequencies to stepper motor control sequences, and the half-bridge drivers ICA’s 1, 3 & 5 (L298) drive the stepper motor windings.

FILM UNIT CASSETTE RACK

It is possible to increase power to the cassette holder down drive. This is done by removing X 21 jumper. Full power is available for down movement. This can be used if the cassette holder movement is jammed.

DC MOTOR DRIVERS

The Vertical carriage motor (Z-motor) and the Cassette lift motor (rack motor) are driven accordingly by circuits around pulse width modulators ICA9 and ICA10 (TL494).

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PROJECTORS, WARNING LIGHTS

Positioning projectors are controlled by relay K1. The x-ray warning lights LA1 and LA2 are controlled by relay K4.

Interface board OT: Laser lights are used in Ortho Trans units. Lasers are controlled by transistor T7.

+15V VOLTAGE REGULATOR

+15V operating voltages for PWM circuits ICA9 and ICA10 are regulated from unregulated +25V by ICA1 (LM317).

List of indicators and test points, see Troubleshooting Manual.

1.8 X-RAY GENERATOR

The X-ray generator consist of Tube Head assembly, Filament control Board and Inverter Board.

Generator exposure sequence

Time 0: Exposure button pressed, exposure sequence starts

• RG1 on: – Connects high voltage (+310V) to the Inverter Board (via soft start

resistor R6 on Power supply Board). – Red LED H1 (RG1) on Power supply Board is lit. – Green led H1 (+310V) on inverter Board is lit.

• PREH on: – Sets the Filament control Board into preheat mode. – Red LED H7 (PREH) on Filament control Board is lit.

• PREHREL on: – Enables filament power circuit.

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+ 35 hidden pages

Instrumentarium Dental OP-100 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Electrical operation, schematics and layouts

1.1 ELECTRICAL BLOCK DIAGRAMS

1.2 WIRING DIAGRAM

1.3 PRIMARY ELECTRONICS

1.4 POWER SUPPLY BOARD (CODE 60113)

1.4.1 Line voltage jumper

1.4.2 High voltage section

1.4.3 Low voltage section

1.5 C167 CORE MODULE (CODE 60244)

1.6 DIGITAL I/O BOARD (60229)

1.7 INTERFACE BOARD (CODE 60166)

1.8 X-RAY GENERATOR