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MR850 Technical Manual * Revision J * Issued November 2005 * Ref. 185041340 (185041713 internal)
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Figure 7.2 Showing PCB fasteners
7.2.2 Replacing Fuses
1. Open the case (section 7.2.1).
2. The fuses can now be accessed. See Figure 7.3 for the location of the fuses on the power
PCB.
Figure 7.3 Showing location of the fuses on power PCB
The four fuses have the following ratings:
MR850 Model Number Supply Voltage Fuse Type Part Number
MR850Axx 230 V~ F1: 1 A 250 V FastBlow
F2: 4 A 125 V FastBlow
F3: 2 A 250 V FastBlow
F4: 2 A 250 V FastBlow
999 830 001
999 830 017
999 830 009
999 830 009
MR850Pxx 127 V~ F1: 1 A 250 V FastBlow
F2: 4 A 125 V FastBlow
F3: 3 A 250 V FastBlow
F4: 3 A 250 V FastBlow
999 830 001
999 830 017
999 830 012
999 830 012