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 f
calibration procedures.
The following procedures MUST be performed after replacement or repair of one or both of 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 ar
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 calibrati
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 Peak Power
Power Level (dBm)
PL5 33
PL6 31
PL7 29
PL8 27
PL9 25
PL10 23
PL11 21
PL12 19
PL13 17
PL14 15
PL15 13
PL16 11
PL17 9
MCUK980101C8
Service Manual
Tolerance
Initial Calibration Value
(dB)
4.8V
±2 192
±3 157
±3 134
±3 118
±3 106
±3 96
±3 87
±3 117
±3 108
±3 101
±3 95
±5 90
±5 85
Section 7
7 - 9
TEST AND MEASUREMENT
Change per dB
7.2V 4.8V
170 14.29
150 12.50
130 5.56
116 7.69
104 5.88
94 5.00
85 4.00
115 5.00
106 4.00
99 3.45
93 2.94
87 2.56
83 2.17
g adjustment and
n the
edures must be
600-0721
7.2V
40.00
20.00
10.00
7.14
6.25
5.26
4.25
5.00
4.35
3.57
3.03
2.63
2.22
Issue 1
Revision 0