4.2 - 70
MTP700 Portable Radio / Detailed Service Manual
TRANSCEIVER 800 MHz
DC Distribution (VREF1_2.775V) Test
Use this test on a unit with the following symptoms: no VREF1_2.775V.
Check C285 for 2.775Vdc
Check traces to
U307.
Check C252 for
3.3Vdc.
Is the voltage OK?
No
Yes
Is the voltage OK?
Yes
No
Change GCAP3 (U200).
Go to V2_2.775V Test.
Содержание IMPRES Tetra MTP700
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