Ericsson GF 768 Troubleshooting Manual page 14

Troubleshooting guide
All the values are 0.2V .
If any of the voltages are incorrect, measure the resistance of C633 (class A, >100 kohms, fig. 3.2) and C824
(class A, >25 kohms, fig. 3.2).
• If any of the resistances are too low, replace the corresponding capacitor.
• If the voltages and VRPAD are correct, replace the diode. If VRPAD is incorrect, go to chapter 6.
• If the voltages at the diode (except VRPAD) are incorrect after replacing it, check the soldering at D600 pad
96.
• Replace C632 (class A, fig. 3.2) and measure the voltages at V608 again. If the voltages still are incorrect,
replace D600 (class B, fig. 3.1).
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Fig. 3.2