Panasonic VL-SWD272BX, Руководство по обслуживанию

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VL-SWD272BX/SWD272CX/SWD272CX1/SWD272AZ/VL-WD613CX/VL-WD613CX1
11.3.2. When replacing BBIC and X’tal
n
Preparation:
1. PC setting refer to “ Wireless Monitor Station (P.21).
2. Supply DC 2.6V at CL5.
Note:
Test points: Refer to Main Board (Bottom View) (P.103).
• After finishing the adjustment, turn off and disconnect the 3-Wire cable.
No. Items Check Point Procedure
1 1.8 V Supply Adjustment CL3(BB1.8V) 1.Confirm that the voltage between test point CL3 and CL9 (GND) is
1.8 V ± 0.02 V.
2.Execute the command “VDD”, then check the current value.
3.Adjust the 1.8V voltage of VDD1 executing command “VDD XX” (XX is the
value).
2 3.0 V Supply Confirmation CL4(BB3.0V) 1.Confirm that the voltage between test point CL4 and CL9 (GND) is
3.0 V ± 0.2 V.
3 BBIC Clock Adjustment CL1 (BXTAL) 1.Confirm frequency between CL1 and CL9 (GND).
2.Input Command “sfr”, then you can confirm the current value.
3.Check X’ tal Frequency. (10.368 MHz ± 100 Hz).
4.If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CKM
executing the command “sfr xx xx” (where xx xx is the value: d) so that the
reading of the frequency counter is 10.368000 MHz ± 5 Hz.
4 Transmitted Power
Check and Adjustment
TP-ANT1 Remove the wire Antenna before starting step from 1 to 5.
1.Configure the DECT tester (CMD60) as follows;
<Setting>
- Test mode: PP
- RFPI: 0102030405
- Traffic Carrier: 5
- Traffic Slot: 4
- Mode: Loopback/RF LEVEL = -70 dBm
- PACKET: PP32Z
2.Execute the command “PAP”.
3.Execute the command “TST 01 02 03 04 05”.
4.Initiate connection from DECT tester.
5.Confirm that the NTP value at ANT is 20 dBm ~ 24 dBm.
executing the command “PAP 29 70” (“PAP 2* 70” where * is the value:
* = 7~9~B)
so that the reading of the NTP value is 22 ± 2 dBm.
Be care NOT to make Cable-loss between DECT tester and Target Set.
5 Modulation Check and
Adjustment
TP-ANT1 Follow steps 1 to 4 of (4).
5.Confirm that the B-Field Modulation is -350 ± 50/+350 ± 50 kHz/div using
datatype Fig31.
6 Frequency Offset Check TP-ANT1 Follow steps 1 to 4 of (4).
5.Confirm that the frequency offset is < ± 20 kHz.
7 Sensitivity Receiver Confir-
mation
TP-ANT1 Follow steps 1 to 4 of (4).
5.Set DECT tester power to -88 dBm.
6.Confirm that the BER is < 1000 ppm.
8 Power RAMP Confirmation TP-ANT1 Follow steps 1 to 4 of (4).
5.Confirm that Power RAMP is matching.