Marquette Hellige GmbH MAC 1100/1200 V 1.1 Page 41
227 492 20 D - 0002
4 Repair instructions
4.1 Safety instructions
Repairs may only be conducted by approved specialist personnel.
Before opening the MAC 1200, switch off device and disconnect mains plug!
Never connect mains plug when the device is open!
Before replacing the primary fuses in the power input module, the device should
also be switched off and the mains plug disconnected!
For replacing components, only the original Marquette components, mentioned
in the spare parts list may be used!
When replacing electronic components implement ESD protection.
Return replaced PCBs in ESD packaging only.
Defective NC batteries or empty batteries should be disposed of in accordance with
the applicable legal stipulations or returned to the factory.
Batteries returned to the factory should be labeled “For disposal”.
4.2 Replacing components
For all the following points the safety instructions in Section 4.1. have to be
observed!
Warning: The device has to be switched off!
Opening the device
To open the MAC 1200 release the 5 fastening screws on the underside of the device,
open the paper feed flap, carefully raise the upper shell of the housing, disconnect
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.
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