Sirona C1+ Service manual

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IMPORTANT:

• In case of faults which you are unable to eliminate with the help of this manual, please contact our Customer Service.

• It is essential that you take this Service Manual with you for every visit to a customer.

Furthermore, you must always have the spare parts list and wiring diagrams with you as well.

You can order additional copies of this Service Manual under

• Order Number 59 06 610 from our department DZA TU in Bensheim.

See reverse side of manual for address.

D 3386.076.01.01.02 11.2001

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Contents

1 Overview of modules and PCBs ................................................................................ 1 – 1

2 Important notes ........................................................................................................... 2 – 1

2.1 Technical data...................................................................................................... 2 – 2

2.2 Warnings and safety notes................................................................................... 2 – 2

2.3 Minimum configuration ......................................................................................... 2 – 2

2.4 Packing position for repackaging ......................................................................... 2 – 3

3 Wiring diagrams .......................................................................................................... 3 – 1

3.1 Wiring diagram of CAN bus.................................................................................. 3 – 2

3.2 EMERGENCY STOP wiring diagram ................................................................... 3 – 3

4 User-defined settings .................................................................................................. 4 – 1

5 Error catalog ................................................................................................................ 5 – 1

6 Reading service codes................................................................................................ 6 – 1

6.1 Reading the service codes on the dentist panel .................................................. 6 – 2

6.2 Reading service codes with PC connection to C1

.............................................. 6 – 4

7 Service code listings ................................................................................................... 7 – 1

7.1 Abbreviations / service code listings .................................................................... 7 – 2

7.2 Service code of PCB (SA) in connection box AK ................................................. 7 – 3

7.2.1SW version: 2.0 - 3.0

7.2.2SW version: 1.1- 1.3

7.3 Service messages of PCB (AJ) in dentist element AE......................................... 7 – 13

7.3.1SW version: 1.4 - 2.5

7.3.2SW version: 1.0 - 1.3

7.4 Service messages of PCB (PS) in dentist panel AP ............................................ 7 – 28

7.4.1SW version: 1.0 - 2.4

7.5 Service codes of PCB (TS) support arm in dentist element................................. 7 – 37

7.5.1SW version: 1.4 - 1.5

7.5.2SW version: 1.0, 1.2 - 1.3

7.6 Service messages of PCB (AJ) on the assistant panel........................................ 7 – 43

7.6.1SW version: 1.4 - 2.5

7.6.2SW version: 1.0 - 1.3

7.7 Service codes of PCB (PS) on the assistant panel .............................................. 7 – 55

7.7.1SW version: 1.0 - 2.4

7.8 Service codes of PCB (SS) chair control ............................................................. 7 – 64

7.8.1SW version: 1.1 - 2.5

7.9 Service codes of PCB (WS) in the water unit....................................................... 7 – 76

7.9.1SW version: 1.0, 1.1 - 1.9, 2.0 - 2.4, 3.0

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C1+

1 Overview of modules and PCBs

1 - 2 D 3386.077.01.01.02 11.2001

59 06 610 D 3386

Component PCB / Module

Dentist element (AE) PS = Control panel

AG = Base plate

IR = Flexible PCB

AVL = Supply for lamp C1

AD2 = Camera module

ACI = HF adapter, from C1

HF+ = HF module, from C1

AJ = Control module

AS = SPRAYVIT module

AL = Siromot module

AV = Distributor light module

AH = Solenoid valve and heater module

AU = SIROSON module

AO = HF modulation module, model 96

AC = Output stage for SIROTOM

Support arm (TA) TS = Support arm control

Assistant element (HE) PS = Control panel

AJ = Control module

AS = SPRAYVIT module

IR = Flexible PCB

HG = Base plate

Water unit (WE) WS = Control PCB

Patient chair (ST) SE = Chair output stage

SS = Control ST

NS = Power supply PCB

SA = Connection box control

NM = Monitor power supply

SVC = Video PCB

SL = Wiring PCB

KS = 4-way foot switch

Foot switch (FS) AF = Foot switch plate

1 Overview of modules and PCBs

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STAEHEFS WETA

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1 - 3

1 Overview of modules and PCBs

1 - 4 D 3386.077.01.01.02 11.2001

59 06 610 D 3386

C1+

2 Important notes

2.1 Technical data

Model designation C1

Power supply 230V∼ 50Hz,

Nominal current 4.5A at 230V,

115V∼ 50/60Hz

9.5A at 115V

2.2 Warnings and safety notes

Caution! Prior to opening the unit, connecting a measuring instrument or replacing parts: Switch the unit OFF.

Operating safety: To guarantee the operating safety, the use of mobile radio telephones in the practice or hospital

area must be prohibited.

Troubleshooting: If you encounter difficulties search in the error catalog first and follow the procedure described

in it.

2.3 Minimum configuration

C1 serial no. < 3000

C1 component PCB Software version

Dentist panel / Assistant panel PS / Control panel >= 1.6

Dentist element / Assistant element AJ / Dentist element control >= 1.9

Water unit WS / Water unit control >= 1.9

C1 serial no. > 3000

C1 component PCB Software version

Water unit WS >= 2.1

serial no. > 10 000

C1+ component PCB Software version

Dentist panel / Assistant panel PS / Control panel >= 2.3

Dentist element / Assistant element AJ / Dentist element control >= 2.5

Connection box SA / Connection box control >= 3.0

Patient chair SS / Chair control >= 2.5

Water unit WS / Water unit control >= 3.0

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2 Important notes

2.4 Packing position for repackaging

To repack the chair (e.g., for transport to a trade fair), move it to the position shown.

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Cur

sor

Key

TONE

Auto

Ret

ROM

“Invisible” key

“Packing” key

880

Vid.

Mod

SAV

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To do this, press the following keys:

1. “Invisible” key in basic settings dialog 2

2. “Packing position” key

The chair now moves to the packing position automatically.

2 - 3

C1+

3 Wiring diagrams

3.1 Wiring diagram of CAN bus

HF+

Connection area Dentist element

Connection area

GA1 GA2

X1 X2

X1 X1X2X1

1 1A1

1 1

CAN H

CANHHEIN

2 2B1

2 2

Track

X10

12X312

CAN L CAN L HE IN

X4 X3

B1 B1A1 A1A3 A3B3 B3

CAN L ST IN

CANHSTIN

CAN H ST OUT

CAN L ST OUT

25B11AA2A64B

X1 X5

215 6

CAN L ST IN

CANHSTIN

CAN H ST OUT

GA3

CAN L ST OUT

ST WE

Connection area Track

Connection area Assistant element

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3 Wiring diagrams

3.2 EMERGENCY STOP wiring diagram

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PCB

X1.2

X3.4B (C1/A)

X3.2

PCB

GA2

GA1

PCB

X1.5B

X4.5B

X1.3

X2.3

X1.3

X4.5B X3.2X2.5 X1.5B

The EMERGENCY STOP can be

triggered both by the safety switch

and the software.

X3.3A

X4.B

X4.A

PCB

X3.3B

X6.2A

X6.1B

PCB

X1.2X2.5A (C1/A)

PCB

X3.B X3.A

PCB

X3.3

X3.2

X3.4

X3.1

PCB

GA3

X5.3A

X3.3

X3.2A

X2.2A

X11.2

X11.3

PCB

X4.2A

X1.2A

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3 – 3

C1+

4 User-defined settings

The following user-defined settings must be made after replacing PCBs or software on the C1.

Component (PCB / software) User-defined settings

Dentist element PCB AJ

Also in case of software upgrade from version < 1.6 to version >= 1.6 and from version < 2.0 to version >= 2.0

Dentist panel AP Panel-specific settings:

Assistant element PCB AJ Also in case of software upgrade from version < 1.6 to version >= 1.6 and from version < 2.0 to version >= 2.0

Instrument settings for all function levels SPRAYVIT L: Instrument light, water and air temperature SIRONA motor: Speed, instrument light, direction of rotation, cooling media,

direct starter, foot switch control

Turb ine: Instrument light, cooling media SIROSON L: Intensity, instrument light SIROTOM: Cutting current, coagulation current POLYLUX: Exposure time, soft start (ON / OFF) Holder assignment for saline solution

(in case of missing Sprayvit light and water heater generate 20 pump strokes)

In case of camera integration: video mode

Brightness, contrast, keyboard sensitivity, audio signal volume, key clicking tone (ON / OFF), timer settings, simplified programs (ON/OFF), cursor (ON/OFF) SIROTOM operating and alarm tone, preselection of key position for direction of rotation/cooling medium/chip blower in instrument program. Sivision / bell switch-over version 1.7 or higher

In case of secondary monitor function, PC dialog (ON/OFF).

Different tones for each row of keys (ON/OFF).

SPRAYVIT L: Instrument light, water and air temperature POLYLUX: Exposure time

Functionality of the 4-way foot switch for Polylux and suction function version

2.0 or higher

Assistant panel HP Panel-specific settings:

Water unit PCB WS Also in case of software upgrade

Patient chair PCB SS

Connection box PCB SA Also in case of software upgrade

Brightness, contrast, keyboard sensitivity, audio signal volume, key clicking tone (ON / OFF), timer settings, simplified programs (ON/OFF) Sivision / bell switch-over version 1.7 or higher

SIROLUX: Brightness, reflector stage, SIROLUX switching condition in relation to chair position, tumbler filling quantity, tumbler filling (ON/OFF) when approaching S position, suction intensity, possibly time and date

Chair positions:

User, user size, treatment position (sitting/standing)

Track positions of dentist element Cuspidor flushing time, cuspidor flushing (ON/OFF) when approaching S position, 4-way foot switch functionality (switch-over headrest/backrest), Type of key for bell or free key (key/switch)

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Component (PCB / software) User-defined settings

4 User-defined settings

Support arm control PCB TS Also in case of software upgrade

Support arm position excluding track Intensity of saline solution pump

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4 – 3

C1+

5 Error catalog

Component

Dentist element

Description of problem Loss of instrument

programs.

After removing the instruments, the factory settings are displayed for all levels and holders. Sprayvit light switched off.

Service code message: AE 7F

Instrument failure

Dentist panel closes the instrument dialog. Instrument functions Motor Scaler Turbine SIROTOM including media spray, water and instrument light are shut off, if active. After depositing and removing again, normal function.

Instrument failure

Instruments Motor Scaler SIROTOM do not function when activated. Media spray, water and instrument light are switched when activated. After depositing and removing again, same error. Can only be remedied by switching on/off.

Instrument failure SIRONA motor

The instrument Sirona motor interrupts its function or does not function when activated. Media spray, water and instrument light remain switched on or are switched when activated. After depositing and removing again, normal function.

Service code message: AE 00 6B

Sirona motor runs on for too long

Scaler switches off again after 1–2 seconds.

Scaler dialog is closed.

Cause Corrective action

Software error PCB AJ of version <2.0

Error while reading hose coding following, e.g., electromagnetic interference or contact problems on hose coupling.

Software version PCB AJ in dentist element <1.8.

Software error on PCB AJ in dentist element, in case of very short instrument removal, e.g., due to oscillating motion of the thin SIROTOM hose.

Software version PCB AJ in dentist element <1.8.

The software of PCB AL (Siromot module) detects open motor load circuits in very smooth motors.

Software version PCB AL in dentist element <3.6.

Software PCB AL in dentist element <3.7

Water on the flange due to leaks in hose or heater.

Residual moisture due to thermal disinfection

Replace AJ software. Part No.: 54 33 375

Replace AJ software. Part No.: 54 33 375 Check and correct (if necessary) the position of the SIROTOM flange (if available). Do not overlap or cross the cables.

Replace AJ software. Part No.: 54 33 375

Replace AL software. Part No.: 54 33 383

Remedy leaks.

Remedy moisture.

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5 Error catalog

Component

Dentist element

Description of problem Performance of

scaler is reduced or fluctuating, or no performance.

High-frequency whistling.

Whistling tone from dentist element when activating a bur instrument

Motor/turbine, immediate cooling/ driving air

After removing the motor, turbine cooling/driving air is immediately on, or after releasing the foot switch cooling/

driving air and spray, if any, are not switched off.

After depositing the instrument everything is switched off.

Occurs on all motors/turbines,

possibly only from time to time

Motor/turbine, low air outlet.

After removing the motor, turbine or after releasing the foot switch, low air outlet. After depositing the instrument everything is switched off.

Does not occur on exactly one motor/ turbine.

No air and no water on one bur instrument.

Dripping instruments.

Cause Corrective action

Old sealing compound of piezo is brittle. Electrical contacts in handpiece are broken.

Pressure setting too low

MV11 Module

Solenoid valve MV11 is caught.

Defective membrane in the module of the instrument for which the error does not occur.

MV21-X on module defective (X – holder no.)

White break on “auto” valve of module due to excessive screwing torque or spring force too low.

Replace handpiece

Replace membrane and check input pressure, pressure =

4.3 bar +/- 0.1 (in case Sprayvit flow is active)

Replace MV11. Replace module.

Replace solenoid valve MV11.

Replace membrane and check input pressure. Pressure = 4.3 bar +/- 0.1 (in case SPRAYVIT flow is active).

Replace MV21.X.

“Auto” valve has been reworked, replace “auto” valve, do not tighten too hard. Check filter in heater.

English

59 06 628 D 3386 D 3386.076.01.01.02 11.2001

Filter tissue of heater is dissolved.

Precipitation in the heater element.

Check filter in heater and replace it, if necessary, and rinse water pipes. (Defective filter and information to Bensheim)

Replace heater and rinse water pipes.

5 – 3

5 Error catalog

Component

Dentist element

Support arm control

Description of problem No instrument dialog

when removing instruments.

SPRAYVIT 4000 occasionally without water.

(Air is still available)

Moist air on SPRAYVIT.

Some water is ejected when the air key is pressed.

SPRAYVIT L handpiece becomes hot.

Both heater cartridges heat up when only one key is pressed. Air heater and SPRAYVIT L heat up immediately after removing the instrument. Valve body is burnt.

Assistant element Polylight cannot be selected using the dentist panel.

Software PCB AJ assistant element version 2.0

Chair and AE travel to position “0” when an instrument is removed.

Cursor is switched off (M1 mode), panel in chair program, “FS down” activated

Dentist element does not reach programmed position.

Program key must be pressed several times.

Service code message in AT/HP: 40 04

(RESET AT) – frequent in C1/96).

Support arm does not swivel in joint 1, Motor 1 is running

(Serial no.: <3000)

Cause Corrective action

Instrument in holder 5 or 6 has not been deposited properly. Instrument tray bent (holder is not aligned with light barrier)

Transparency of ZEG hose

Contact problem or humidity on base of air heater in valve body. Consequence: SPRAYVIT is not detected by dentist element.

Damaged o-rings on Sprayvit nozzle, due to sterilization and lack of maintenance.

Water in SPRAYVIT hose.

Software error in PCB AJ version 2.0

Software error dentist panel / assistant panel

PCB TS reset because watchdog tolerance is too high. PCB TS:

Serial no. >3000:

Hardware <2.1, Software <1.5

Serial no. <3000:

Hardware <1.3

Pertinax pinion of joint 1 defective

Slipping clutch of joint 1 skids

Information for the customer.

Install a new instrument tray

Hose change in progress

Temporary measure: Clean air heater (remove also solder residue) and tighten contact terminals.

Replace o-rings on Sprayvit nozzle.

Replace hose and replace valve body, if necessary.

Replace AJ software. Part No.: 54 33 375

No solution as of yet. Serial no. <3000: Software version on PCB PS >= 1.8 Serial no. >3000: Software version on PCB PS >= 1.7

Replacement of PCB TS.

Part No.: 46 96 931 - Serial no. >3000

Part No.: 46 85 231 - Serial no. <3000

Install new motor 1 with metal pinion

Replace slipping clutch of joint 1

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59 06 628 D 3386

5 Error catalog

Component

Support arm control

Description of problem Support arm does

not swivel in joint 1, Motor 1 is running

Furthermore, a knocking noise can be heard (serial no.: >3000).

Support arm motors run on.

Support arm motors keep running for a few seconds after reaching the programmed position.

Support arm motor 1 does not reach programmed position.

Program key must be pressed twice

Unit head drops when an additional load is applied.

The unit head keeps falling back to the lowest position.

Cause Corrective action

Gear Z70 is damaged, because motor 1 has not been inserted deep enough or grub screw is missing in lower support arm bearing.

Pot. target value is outside the movement range

Slipping clutch of joint 1 has not been tightened enough at factory Only serial no.: >3000

Slipping clutch of joint 1 too weak only serial no.: <3000

Spring weight compensation not properly set.

Slipping clutch torn off.

Replace lower support arm bearing entirely. Rep. no. 5433623

Check the fastening and fitting of the potentiometers, then try to travel to the corresponding program positions again and press the save key.

Tighten slipping clutch with a screwdriver, as necessary. Factory setting: 20 +- 5N

Replace slipping clutch of joint 1. Installation instructions currently being drafted

Tighten the spring using allen screw on spring arm. Remarks: The slipping clutch of the height adjustment is exclusively required to dampen the spring force. It is preset at the factory and can be adjusted slightly in exceptional cases. Generally, the following applies: Always tighten the spring for weight - force adjustment.

Dismount the slipping clutch. When the driving pin is not hammered in deep enough, drive it in and then mount back the slipping clutch with an undamaged groove.

English

Support arm control

Assistant element

Unit head does not swivel, motor is running.

Polylight cannot be started.

After removing the instrument the timer in the assistant panel does not switch over to the Polylight values and the Polylight cannot be started.

Polylight light power is not in green range

when measured with Translux Test.

Slipping clutch has burst due to excessive tightening

The grub screw used to attach the pinion to the back-geared motor 3 is loose.

Software error PCB AJ software, assistant element. Polylight detection in case of an old Polylight (without electronics) using fan current defective. Software version on PCB AJ, Assistant element <1.9.

Fiber optic is not properly inserted or locked in place in the module.

Lamp has air leaks so that the quartz tube has become opaque.

Lamp has not been inserted properly.

Dirt in filter of lamp module, at light entrance or exit of fiber optic and of handpiece.

Replace slipping clutch. Rep. no. 3319501

Tighten the grub screw and secure with Loctite. (The back-geared motor must be dismounted to do this)

Replace AJ software (basic retrofit kit).

Pull out the fiber optic and insert it again, until it catches.

Replace the halogen lamp. Only use selected Osram Xenophot HLX bulbs.

Lamp must lie flat against the heat sink, place the lug on the lamp in the notch intended for this purpose.

Clean all interfaces with ethanol

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5 – 5

5 Error catalog

Component

Assistant element

Water unit

Description of problem Short total failure.

SIROLUX (unit model), film viewers, if any, are shut off and must be switched on again. The suction and separator function are interrupted for 2–4 seconds and start up by themselves again.

Service code message in AP/HP: 40 08

Amalgam separator full message too early.

Panel display amalgam and continuous tone, rotor not filled yet (total weight of rotor <500 g)

Amalgam separator goes over to fault mode, loud noises and vibration from amalgam separator.

Amalgam is flashing and intermittent beeping tone.

Service code message: WE 06

Amalgam separator goes over to fault mode.

Amalgam is flashing and intermittent beeping tone. (loud drive noise, rustling or standstill)

Service code WE: 5C

Drive below target speed

There is barely any water arriving to the tumbler filling.

Tumbler filling does not work from time to time.

Vibrations of the amalgam separator

Cause Corrective action

Software error on PCB WS, which can lead to a RESET of the module when filling the water tank and the disinfectant injection.

Serial no. <3000:

Software version on PCB WS <1.9.

Serial no. >3000:

Software version on PCB WS <2.1.

Software version on PCB WS <2.0.

Driver bolt defective.

Bearing damage on motor (audible) due to leak in pump

Motor is blocking

Bearing in lower part is defective

Rotor axle is defective

Drain is blocked up

Suction from lower part is blocked up

Media pipe is clogged due to precipitation in the heater element.

Software version on PCB WS <2.4.

Float switch in mixing tank is caught.

Amalgam separator has been mounted stressed

Replace AJ software. Part No.: 54 33 391

Replace WS software. Part No.: 54 33 391

Replace amalgam drive.

Replace the amalgam drive.

Check the rotor’s operation (must run smoothly) replace lower part, if necessary.

Replace rotor

Check siphon and drain, clean them if necessary. Check the hose path

Clean suction channel in lower part of amalgam separator.

Replace heater, clean media pipes, if necessary.

A solution is being worked out.

Replace float switch.

Position all connections to amalgam separator so as to leave 1mm clearance in all directions from amalgam separator,

Defective rotor or flyweight

Suction from lower part is blocked up

Transport safety device has not been removed.

Replace rotor

Clean suction channel

Remove the transport safety device

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5 Error catalog

Component

Water unit

Description of problem Tumbler falls into

cuspidor

Cuspidor does not drain off

intermittent beeping tone

Service code WE: 07

Water escapes from water unit

Suction does not switch off or is delayed

Water unit is deformed in lefthanded version

Disinfectant consumption too high

Flushing water quantity:

too low

too high

Cause Corrective action

Slope of cuspidor too steep

Vibrations of the amalgam separator

Clogged drain, def. water detector, air pressure too low

Leaks on tumbler plug adapter

Water escapes from mixing tank overflow, Clogged or badly positioned drain

MV 33 is caught Replace MV 33

Lack of stiffness in lefthanded version

Metering valve is leaking Replace the metering valve

Control nozzle not properly adjusted

Reduce slope of cuspidor, if possible

Order silicone mat free of charge Part No.: 54 46.443

Use of tumblers with hollow bottom

See: Vibrations of the amalgam separator Check drain and air pressure;

Clean water detector or replace, if necessary;

If everything is in order, reduce the flow of the cuspidor flushing

Replace sealing ring in plug adapter Part No.: 70 36 189 (red o-rings)

Check slope of drain, Clean the siphon

Retrofit reinforcing plate Part No.: 47 08 272

Part No.: 14 35.580

1. Adjusting cuspidor flushing:

For right-handed version – Remove side panel A of water unit and adjust control nozzle B until the bottom of the cuspidor is flushed evenly. Remount back side panel A of water unit.

For left-handed version – Remove cover C. Lift rubber cover and adjust control nozzle B using a coin until the bottom of the cuspidor is flushed evenly. Refit the cover.

2. Check the swivel-back motion of the cuspidor:

English

Patient chair

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Leaks in connection box

No chair motion after switching on.

Serial no.: <3000 Chair output stage version: Hardware PCB SE 1.0

Service code message: ST 03 37 (also 01 01)

Counter nut on ceramic valve is loose

Output stage relay is caught.

– Swivel the cuspidor into the movement range of the

chair

– Press the manual chair button and start the chair

program consecutively

The cuspidor must always swivel back into the starting position automatically

Tighten the nut, fix by a lock nut and secure with locking varnish

Replace PCB SE - Version 1.1.

5 – 7

5 Error catalog

Component

Patient chair

Description of problem No chair motion after

switching on

only in cooled treatment center

Service code message: ST 02 00 to 02 05

Chair does not reach programmed position.

Program key must be pressed several times, particularly when travelling to S or 0 position. No service code message in ST. Software PCB SS <1.8.

Chair does not reach programmed position.

Program key must be pressed several times, or chair does not leave position. EMERGENCY STOP relay is switching.

Service code message in AP/HP: 40 04

(RESET AT)

No service code message in ST.

(more frequent for serial no.: >3000)

Chair does not reach programmed position. Service code message: 08 0X; X = 0...2

Cause Corrective action

Temperature sensibility of PCB SS, Software version on PCB SS <2.0

EMERGENCY STOP activated by EMERGENCY STOP sensory mechanism.

Defective or badly adjusted safety switch for foot part, or defective cable. Service code ST 09 11, EMERGENCY STOP activated by safety switch for foot part.

Defective safety switch for backrest, or defective cable or backrest mechanics jammed. Service code ST 09 13, EMERGENCY STOP activated by free lift switch of backrest.

PCB TS is RESET due to excessively high watchdog tolerance.

PCB TS: C1/96, Serial no. >3000:

Hardware: <2.1, software: <1.5

C1/A: Serial no. <3000:

Hardware: <1.3

Broken wire in the motor sensor circuit (L16) Serial no. <3000.

Contacts pushed back on connector X15 on motor circuit (L16).

Replace the software on PCB SS

Replace software for diagnostics PCB SS, version >= 2.0 to recognize source of EMERGENCY STOP. Serial no.: <3000, Part No.: 54 33 680 Serial no.: >3000, Part No.: 54 33 409

Adjust or replace the switch or cable. (Switch must only switch shortly before the upper end stop and must not be charged in the lower end stop).

Replace the switch or cable. Eliminate the stiffness of the backrest.

Replace PCB TS.

Serial no.: >3000, Part No.: 46 96 931

Serial no.: <3000, Part No.: 46 85 231

Replace motor sensor circuit (L16).

Check contacts.

Patient chair

Chair does not reach programmed position. Service code message: 08 03

Chair does not travel to programmed position.

Potentiometer 0–2 defective.

Potentiometer 3 no longer moves into gear due to worn sword rollers

Unintentional call of the factory programs, mostly with foot switch. (Display with icon in odontogram)

Switch the potentiometers between each other and check if error is reproduced, replace the potentiometer, if necessary

Install roller kit Part No.: 54 33 870

Information to customers.

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+ 88 hidden pages

Sirona C1+ Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Overview of modules and PCBs

2 Important notes

3 Wiring diagrams

4 User-defined settings

5 Error catalog