5-2 PLL ADJUSTMENT
ADJUSTMENT | ADJUSTMENT CONDITIONS | MEASUREMENT |
| VALUE | ADJUSTMENT | ||||
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UNIT | LOCATION |
| UNIT | ADJUST | |||||
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PLL LOCK | 1 | • Operating frequency: |
| MAIN | Connect a digital multi |
| 1.3 V | MAIN | L11 |
VOLTAGE |
| 400.000 MHz A |
| meter to check point |
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| 440.000 | MHz B |
| LV. |
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| 470.000 | NHz C |
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| 490.000 | MHz D, E |
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| • Receiving |
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| 2 | • Transmitting |
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| 1.3 V B |
| L405 |
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| 1.05 V (except B) |
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| 3 | • Operating frequency: |
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| Verify | |
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| 430.000 | MHz A |
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| (A, B, C) |
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| 470.000 | MHz B |
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| 500.000 | MHz C |
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| 512.000 | MHz D |
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| 520.000 | MHz E |
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| • Receiving |
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| 4 | • Transmitting |
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A: | B: | C: | D: | E: |
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ˆ: | „: | ˜: |
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MAIN UNIT
RF power meter
L405
L11
PLL lock voltage adjustment
LV
PLL lock voltage check point
Bottom view
5 - 4