DENTSPLY 5B Specifiche Scaricare il pdf (Pagina 16)

9363133 rev. C 0704

4.1 Troubleshooting

Furnace does not turn on

• Disconnect power cord from furnace, check fuses at inlet socket on back panel (230V).

Check F1 on PCB

• Check J-16 on the control PCB

• Exchange control PCB (chapter 7.1.1)

LCD display has no content

• Check contrast adjustment - turn adjustment wheel after furnace is turned on (first

display screen that appears).

• Check the -15V on the control PCB (U24 : 1)

• Exchange display PCB (chapter 7.1.3)

• Exchange control PCB (chapter 7.1.1)

Membrane keys without function

• Exchange membrane (chapter 7.1.2)

• Exchange control PCB (chapter 7.1.1)

Adjustment wheel without function

• Exchange encoder PCB (chapter 7.1.4)

• Exchange control PCB (chapter 7.1.1)

Piston moves too slow or too fast (Cerampress) (units built prior to date code 0232)

• Check air pressure (4.5 bar)

• Check air flow restriction adjustment (See Fig. 1)

• Disconnect then reconnect power cord from furnace

• Observe piston down/up movement

• If down speed is too fast, turn bottom screw, located on the pressing valve (Sol 3), slightly

clockwise

• If up speed too fast, turn top screw, located on the pressing valve (Sol 3), slightly clockwise

Pressing Valve (Sol 3)

Fig. 1

Adjustment for

up movement speed

Adjustment for

down movement speed

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 39 40

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DENTSPLY 5B Specifiche Pagina 16