Panasonic EB-GD35, Service Manual

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EB-GD35 EB-GD35C
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18. After calibrating at channel 62, the carrier power must be measured and calibrated at LOW and HIGH channels as shown in the
table below.
19. Repeat steps 2 to 14 for the GSM 1800 settings in the following order:
PL10 (limits ±0.5 dB).
PL1, PL5, and PL15.
Power levels between PL1 and PL4.
Power levels between PL15 and PL10.
Power level PL0 (limits ±0.2 dB).
20. Save TRIM data.
6.5.3 RSSI
This procedure describes the calibration of RSSI on the mid-channel. This procedure must also be carried out for low / bottom
channel and high / top channel.
The procedure is as follows:
1.
Power the telephone into Test Set mode in the service channel box.
2. Connect the telephone to the GSM Test Set and apply a carrier frequency of 68 kHz (for channel 60 = 947.00 MHz) at an input
level of -90 dBm.
3. At the channel box, highlight CHANGE CH, and, using the left / right cursor keys, select CH <60>. Press ENTER.
4. Highlight the SET AGC1 field and change the set value to 48 dB. Press ENTER.
5. Highlight the RSSI dBm <> field and press ENTER
Figure 6.14: RSSI dB field
Channel GSM 900 GSM 1800
Bottom - 544
Low 10 (624)
Mid 62 699
High 105 (774)
Top - 885