TRANSCEIVER 800 MHz
MTP700 Portable Radio / Detailed Service Manual
4.2 - 59
DC Distribution (V2_2.775V) Test
Use this test on a unit with the following symptoms: no power, no V2_2.775V, V1_2.775V, V3_2.775V,
VREF1_2.775V, VREF2_2.775V.
Note: The following are the DC power distribution voltages with their correct values and appropriate location
to check the voltages:
•
Fused B+ (7.2Vdc) @ F200.
•
Filt_3.3V (3.3Vdc) @ C282.
•
V1_3V (3Vdc) @ C211.
•
V2_2.775V (2.775Vdc) @ C210.
•
V3_2.775V (2.775Vdc) @ C209, C258, C259.
•
VREF1_2.775V (2.775Vdc) @ C285.
•
VREF2_2.775V (2.775Vdc) @ C212.
•
V4_2.775V (2.775Vdc) @ C225, C244, C247.
•
5V_RF (5Vdc) @ C251, C223.
•
PWM1_1.8V (1.8Vdc) @ C224, C248.
•
5.5V_RF (5.5Vdc) @ C299
Содержание IMPRES Tetra MTP700
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