Table of Contents
Advertisement
11. OUT OF RANGE AND INCOMING/OUTGOING CALLS ARE IMPOSSIBLE.
[Checkpoint s in RF Test Tool ]
Is transmission possible using RF Test Tool?
YES
[Sender]
Is voltage (applox. 2.9 V) supplied to pin 6 of IC804?
Is IQ signal supplied to pins 23, 24, 25, and 26 of IC801?
Is frequency signal sent?
GSM900 bands ....................... IC801 pin 17
DCS1800/PCS1900 bands ...... IC801 pin 19
Is frequency signal supplied?
GSM900 bands ....................... IC803 pin 16
DCS1800/PCS1900 bands ..... IC803 pin 14
Is frequency signal supplied to pin 1 of FL905?
Is frequency signal supplied to pin 1 of J801?
J801 is defective.
[Receiver]
–70 dBm input.
Is frequency signal supplied?
GSM900 bands
............. .
DCS1800 band ............................ IC801 pins 6, 7
PCS1900 band ............................ IC801 pins 3, 4
Is frequency signal supplied?
GSM900 band ................................ FL902 pin 4
DCS1800 band ............................... FL902 pin 1
PCS1900 band ............................... FL903 pin 1
Is frequency signal supplied to pin 10 of IC803
FL905 or J801 is defective.
CONFIDENTIAL
NO
YES
YES
YES
YES
YES
YES
.............
IC801 pins 9, 10
NO
NO
NO
TM200 1ADJUSTMENTS, PERFORMANCE CHECK, AND FIRMWARE UPGRADE
NO
IC804 is defective.
NO
IC103, IC106, or PWB is defective.
IC801 is defective.
NO
IC802 is defective.
NO
NO
IC803 is defective.
NO
FL905 is defective.
IC801 is defective.
YES
FL902, or FL903 is defective.
YES
YES
IC803 is defective.
2 – 36
Advertisement
Table of Contents
