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
To Next Page
Loading...
