Adjustment Mode - Panasonic G600 Service Manual

7.5

Adjustment Mode

NOTE:
See section 7.2.1 for a list of the equipment and setup procedures required to perform the following adjustment and
calibration procedures.
The following procedures MUST be performed after replacement or repair of one or both of the PCBs in the
handheld unit. Failure to do so may result in incorrect operation of the telephone.
The following adjustments MUST be made on BOARD PAIRS.
There are four distinct calibration procedures to adjust RF performance. These procedures are:
1. Ramping gain (Section 7.5.1)
2. RSSI (Section 7.5.2)
3. I and Q values (Section 7.5.3)
The adjustment data selected during calibration is stored in the telephone EEPROM.
NOTE:
As G600 has two battery types available, Lithium Ion and Nickel Metal Hydride, all calibration procedures must be
carried out for each battery type.
Figure 10: Test software screen
7.5.1 Ramping Gain
The carrier power must be measured and calibrated for each power level at channel 62.
Target
Power Level
PL5
PL6
PL7
PL8
PL9
PL10
PL11
PL12
PL13
PL14
PL15
PL16
PL17
MCUK980101C8
Service Manual
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Peak Power Tolerance
(dBm) (dB)
33 ±2
31 ±3
29 ±3
27 ±3
25 ±3
23 ±3
21 ±3
19 ±3
17 ±3
15 ±3
13 ±3
11 ±5
9 ±5
Initial Calibration Value
4.8V 7.2V
192 170
157 150
134 130
118 116
106 104
96 94
87 85
117 115
108 106
101 99
95 93
90 87
85 83
Section 7
7 - 9
TEST AND MEASUREMENT
600-0721
Change per dB
4.8V 7.2V
14.29 40.00
12.50 20.00
5.56 10.00
7.69 7.14
5.88 6.25
5.00 5.26
4.00 4.25
5.00 5.00
4.00 4.35
3.45 3.57
2.94 3.03
2.56 2.63
2.17 2.22
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