PG-3210 Service Manual
1
PANTECH
CONTENTS
SECTION 1 INTRODUCTION .............................................................................................................3
1.1
I
NTRODUCTION
..............................................................................................................................3
1.2
F
REQUENCY
A
LLOCATION AND
I
TS
U
SE
...........................................................................................3
1.3
I
TEM
N
AME AND
U
SE
......................................................................................................................4
1.4
C
HARACTERISTICS
.........................................................................................................................4
SECTION 2 ELECTRICAL SPECIFICATIONS....................................................................................5
2.1
G
ENERAL
......................................................................................................................................5
2.2
T
RANSMITTER
…………………………………………………………………………………………….5
2.3
R
ECEIVER
…………………………………………………………………………………………………5
SECTION 3 OPERATION....................................................................................................................6
3.1
N
AME OF EACH
P
ART
…..……………………………….…………………………………………………6
3.2.D
ISPLAY
..………………….…………………………….………………………………………………..7
3.3 KEYPAD …………………………………….………….………………………………………………..7
3.4 CAMERA MODULE
SECTION 4 THEORY OF OPERATION..............................................................................................8
4.1 LOGIC SECTION........................................................................................................................8
4.1.1
D
C DISTRIBUTION AND
R
EGULATION
P
ART
…………………………………………………………….8
4.1.2
L
OGIC
P
ART
…………………………………………………………………………………………….8
4.1.2.1
S
UMMARY
…………………………………………………………………………………………….8
4.1.2.2
B
ASEBAND
D
IGITAL
S
IGNAL
P
ROCESSING
…………………………………………………………..8
4.1.3
M
EMORY
P
ART
………………………………………………………………………………………..10
4.1.4
N
OTIFICATION
P
ART
.................................................................................................................. 11
4.1.5
K
EY
P
AD
P
ART
.......................................................................................................................... 11
4.1.6
LCD
M
ODULE
(D
ISPLAY
P
ART
)................................................................................................... 11
4.1.7
CAMERA
MODULE
4.2
R
ADIO
T
RANSCEIVER
S
ECTION
.....................................................................................................12
4.2.1
DC
D
ISTRIBUTION AND
R
EGULATION
P
ART
.................................................................................13
4.2.3
R
ECEIVE
S
ECTION
………………………………………………………………………………….…14
4.2.3.1
A
N
O
VERVIEW OF
R
ECEIVE SECTION
.......................................................................................17
4.2.3.2
R
ECEIVER
P
ART
……………………………………………………………………………….……18
4.2.4
T
RANSMIT
S
ECTION
..................................................................................................................19
4.2.4.1
A
N
O
VERVIEW OF
T
RANSMIT
S
ECTION
....................................................................................19
4.2.4.2
T
RANSMITTER
P
ART
...............................................................................................................20
4.2.5
O
FFSET
P
LL
……………………………………………………………………………….…………..21
4.2.5.1
A
N
O
VERVIEW OF
OFFSET
PLL ............................................................................................21
4.2.5.2
V
CTCXO
(
VOLTAGE CONTROLLED TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR
):V801….22
SECTION 5 ALIGNMENT PROCEDURE..........................................................................................23
5.1
R
ECOMMENDED
T
EST
E
QUIPMENT
................................................................................................23
5.2
C
ONNECTION OF
T
EST
E
QUIPMENT
...............................................................................................23
SECTION 6 EQUIPMENT REPAIR PROCEDURE ...........................................................................24
6.1
NO POWER ON WITH BATTERY APPLIED
..........................................................................................24
6.1.1
P
OWER
C
HECK
.........................................................................................................................24
6.1.2
O
SCILLATION
C
HECK
................................................................................................................30
6.1.3
K
EYPAD
L
ED
N
OT
I
N
O
PERATION
(3-C
OLOR
AND
B
LUE
) ..............................................................31
6.1.4
L
CD
E
L
B
ACKLIGHT
L
ED
N
OT
I
N
O
PERATION
(W
HITE
)..…………………………………………
…33
6.2 AUDIO PART(E
ARPIECE
,
H
ANDS FREE
E
ARPHONE
,
M
ICROPHONE
,
H
ANDS FREE
M
IC
) ..................35
6.2.1
N
O
R
ECEIVING
T
ONE
H
EARD
(E
ARPIECE
)
..................................................................................35
6.2.2
N
O
R
ECEIVING
T
ONE
H
EARD
(H
ANDS FREE
E
ARPHONE
).............................................................35
6.2.3
S
IDETONE
N
OT
T
RANSMITTED
(E
ARPIECE
)................................................................................38
6.2.4
S
IDETONE
N
OT
T
RANSMITTED
(H
ANDS FREE
M
IC
) .....................................................................38
6.2.5
H
OOK
S
WITCH
N
OT
W
ORKING
..................................................................................................39