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1) Send "Read command to non-volatile memory" and read current status.
2) Measure frequency at SYRI test point. (SYRI-GND)
(Refer to PRINTED CIRCUIT BOARD 21.2 Bottom View p46)
If measured frequency is within the range of 10.368 MHz ±20 Hz, proceed to step 5.
3) Read "Clock frequency set - command", and set calibration data.
If measured frequency is high, set YY to a value lower than current value (XX). If low, set YY to a
value
higher than current
value (XX).
4) Repeat (2) to (3) until frequency is within test standard.
If measured frequency is within the range of 10.386 MHz ±20 Hz, proceed
to next step.
5) Send "Write command to non-volatile memory" and write calibration
data.
6) Send "CS reset command" and reset CS.
7) Measure frequency (RF clock) at SYRI again at last.
10. FREQUENCY TABLE (MHz)
Tx Frequency
Channel
00
01
02
03
04
05
06
07
08
09
11. BLOCK DIAGRAM
11.1. MAIN BOARD
11.2. RF BLOCK
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Command: 122600000204
Response: 0F5601040000XX00
Command: 0E060000YY
Response: none
Command: 1216000002040500YY00
Response: 0F5601
Command: 0E0700
Response: none
Rx Frequency
Frequency (MHz)
1897.344
1895.616
1893.888
1892.160
1890.432
1888.704
1886.976
1885.248
1883.520
1881.792
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24
XX:Current value
YY:Adjustment value
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