Power On - Mitsubishi TRIUM GALAXY Service Manual

Level 3 Service Manual
GALAXY ASTRAL GEO GEO WAP
The mobile is then powered off by Power Control.
2.6

Power on.

To switch on the mobile, three possibilities exist :
With a battery :
PWRKEY
t
BBPWR
IC300 pin L8
t
MUPSU
IC100 pin49
t
During these mode TESTPS and EXPS = low voltage level.
A high voltage level on MUPSU implies regulators REG 4, REG 5, REG 6, REG 7 are active.
- With Interface and I/O connector (Testmode M.T.S) :
TESTPS
to t
t0= connexion I/O cable
When you connect I/O connector, MUPSU and BBPWR signals have the same waveform at
TESTPS.
During this condition PWRKEY and EXPS = low voltage level.
- With AC/DC Charger, Cigar Light Adapter and DeskTop Charger.
EXPS
t0
t0= connection by external power.
When an accessory is connect, MUPSU and BBPWR signals have the same waveform that TESTPS.
During this condition PWRKEY and TESTPS = low voltage level
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