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Ericsson GH 688 - Page 9

Ericsson GH 688
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GH688,GA628, Standard Electrical Repairs
4/00021-2/FEA 209 544/1.G 9 (112)
Fig. 2.3
Measure the resistance of C853 (class B, >100 kohms, fig. 2.4).
Fig. 2.4
Give the board power and start it up.
Measure VVCO (~3.8V) at V451 pad 3 and VRAD (~3.8V) at C457 (fig. 2.5).
If any of the voltages are incorrect, proceed to chapter 3 (“Doesn´t start”-fault).

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