Level 3 Service Manual
GALAXY ASTRAL GEO GEO WAP
9. Trouble Shooting help guide
Defects observedMesure/InvestigationTestComponent no good
reportcorrectives action
CHARGING PROBLEM
Consumption in charge: begin at 125 mA, red led light up, displayed "Charging", increase between 520 and
580 mA with backlight switch on and decrease between 450 to 500 mA
Charging problem60 < Ich < 100 mA + no charging display-Vbat=4,8 Vxg001 IC100
instead of 1,04v with charge cable, without battery
Charging problem70 < lch < 76 mA, Vth=2.5 V (j101 pin2)IC100
No chargingvisual check : connector J103 brokenxg003 J103
Charging no goodDisplayed Charging, consumption at 72mA increase tochecks TR106,
155 mATR107, R128, R129
Charging no goodDisplayed Charging, consumption at 123mA increase to 175check the power
mA and decrease to 80mABLEV
Charging no goodDisplayed Charging, consumption at 850mA (Vth=1.1 VTR106, TR103,D118
instead of 2.5 V)
Charging no goodDisplayed Low Battery, Consumption at 180mAR120, R121, TR104
Charging no goodDisplayed "TestMode", Consumption at 25mAD125, TR106
Charging no goodDisplayed Full Battery after few secondesR121, TR106
Charging no good3.6VB=3.7 V instead of 5 V in chargingxg013 D117 (resoldering
only)
AUDIO PROBLEM
Noisy audioNoisy audio during DCS real call but audio good withxg002 IC300
DCS tester with speaker no good
Noisy audioNoisy audio during DCS real call but audio good withxg022 IC300
DCS tester with speaker good
Low audioHSDET voltage no good(not equal to 0v) and J300xg024 IC300(L3)
already changed
Low speakervisual check : C333 missing (0.1 ?F)xg010 C333
Low buzzercheck audio pathR327, R328
No buzzercheck audio pathTR350, D300,IC300
No speakercheck audio pathxg005 IC300
No speakervisual check on audio pathxg023 J300 (resoldering
only)
LOCATION UPDATE
RX level DCS no goodcheck the RX DCS path : 15 dbm loses instead of 2 in thexg006 SW700
SW700
No Service DCSSwtiching + 400 kHz no goodxg008 adjust each PCL in
DCS band
No Service EGSMcheck the RX GSM path : LNA output level at -75 insteadxg009 TR504
of -27
No Service EGSMCheck the RX path (command on SW700 pin4 no good)xg017 SW700
No Service EGSM & DCSTX good in testmode (TX I/Q and RF) + RSSI good in testxg014 IC600
mode (RX I/Q and level)
Mitsubishi Electric Telecom Europe SAVersion E
ZA le Piquet, 35370 EtrellesDate: 04/00
Phone: +33 2 99 75 71 00
29/29
Fax: + 33 2 99 75 71 47 |
ACEC
