4.1 - 74
MTP700 Portable Radio / Detailed Service Manual
TRANSCEIVER 400 MHz
DC Distribution (VREF1_2.775V) Test
Use this test on a unit with the following symptoms: no VREF1_2.775V.
Is the voltage OK?
Check C285 for 2.775Vdc.
Check C252 for 3.3Vdc.
Yes
No
No
Yes
Is the voltage OK?
Check traces to U307.
Change GCAP3 (U200).
Go to V3_2.775V test.
Содержание IMPRES Tetra MTP700
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