4-4 MAC 1200 resting ECG analysis system Revision D
2012250-095
Repair Instructions: Replacing Components
Replacing Components
For all the following points, the “Safety Instructions” on page 4-3 need to be
observed.
WARNING
The device has to be switched off.
Opening the Device
To open the device, follow this sequence.
1. Release the five fastening screws on the underside of the device.
2. Open the paper feed flap.
3. Carefully raise the upper shell of the housing.
4. Disconnect the keypad cable by opening the connector KEYB/ on the PCB
Control.
The display remains in the lower shell of the casing.
During reassembly, ensure that no cables are pinched.
Replacing the Primary Fuses in the Mains Input Module
WARNING
Only use fuses indicated on the rating label. (See Chapter 8, “Parts
List” for details.)
1. Switch off unit and disconnect mains plug.
2. Insert small flat blade screwdriver sideways into the lower section of the power
connector.
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