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Pantech PG-1210 Service Manual
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Pantech PG-1210 Service Manual
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User manual
Table of content
Contents
Table Of Contents
Table Of Contents
SECTION 1 INTRODUCTION
use.
G ENERAL
SECTION 3 OPERATION
D ISPLAY
SECTION 4 THEORY OF OPERATION
Part
S ECTION
R EGULATION P ART
T RANSMIT S ECTION
SECTION 6 EQUIPMENT REPAIR PROCEDURE
CHECK
not working
not ringing
VIBRATOR NOT WORKING
SIM CARD PART
CHARGER PART
T EST CONDITIONS
P OWER S UPPLY C HECK POINT
P OWER AMPLIFIER MODULE
VC-TCXO
A NTENNA S WITCH M ODULE
PG-1210 Service Manual
6.5.2 Power Supply Check Point
Step
Test point
Typical Value
Condition
Checking Point
2-1
U504
Pin#1
3.8V
2,3,4,5,6,7
Check route connection : VBAT
2-2
U504
Pin#5
2.8V
2,3,4,5,6,7
Check route connection : VCC_RFCHIP
2-3
U505
Pin#3,8,20
3.8V
2,3,4,5,6,7
Check route connection : VBAT
Step 2-1
Step 2-2
Fig.6-1
U504 Regulator
Power Supply Schematic
Step 2-2
Step 2-1
Fig.6-2 U504 Regulator Power Supply PCB Layout
38
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PG-1210
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