Motorola MTP700 Detailed Service Manual page 103

380 - 430 mhz 806 - 870 mhz
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TRANSCEIVER 400 MHz
DC Distribution (SWB+ 7.2V) Test
Use this test on a unit with the following symptoms: no 7.2Vdc SWB+.
Check Q201 pin2 or pin3 for
7.2Vdc.
Is the voltage OK?
No
Check Q201 pin5 for
2.7Vdc.
Is the voltage OK?
Yes
Check 7.2Vdc at Q201 pin6.
Are they OK?
Yes
Replace Q201.
Replace Q201.
MTP700 Portable Radio / Detailed Service Manual
Yes
Check traces to U205, R215,
R256.
No
Check R217.
Replace R217.
No
Check R229.
Replace R229.
No
Is the resistor OK?
No
Is the resistor OK?
4.1 - 69
Yes
Go to V3_2.775V test.
Yes
Replace Q201.

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