A
TX
On
Off
2.87V
0V
VCO
R808
RX_2.75V
RX_2.75V
BUFF_VCO
R53
RX_2.75V
DBLR_IN
R808
RX_1900
RX_2.75V
FL453
SW_QMOD_KEY
800*_1900
FE_EN
RX_800
F500
U1800-18
U1907-64
Q1501
L11
FL30
C32
C38 L31
R30
C35
C34
C30
L30
C2
R3
C3
C51 C13
C12
C14
FL10
L20
L21
L23
C20
C21
FL20
RX_2.75V
RX_IF
C1806
page B25
page B13
page B25
page B9
page B9
page B25
page B7
page B25
page B3
page B23
page B35
page B25
page B3
page B25
-34.79dBm
1006.2Mhz
-8.12dBm
112.32Mhz
-16.13dBm
1006.252Mhz
-35.18dbm
1940.01 Mhz
-30.16dBm
893.97Mhz
A
B
C
B
Band
2.81V
0V
800
1900
RX
On
Off
0V
C
-18.3dbm
1940.01 Mhz
-14.7dBm
893.97Mhz
-20.1dbm
1940.01 Mhz
-14.9dBm
893.97Mhz
1
2
3
4
5
6
U10
IF-
IF+
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
TDMA T2290/T2297:
Front End IC
This manual is Motorola property. Copying or
distribution strictly prohibited without prior written
consent from Motorola and must be returned upon
Motorola's request.
Motorola Confidential Proprietary
VOLTAGE SUPPLIES
Colored boxes represent the area in
which the components are placed.
Channel: 333
Cellular RX Input Freq:
879.99MHz
PCS RX Input Freq:
1940.01MHz
RX Input:
-20dBm
VCO SIGNAL
RX SIGNAL
B5
Summary of Contents for T2290
Page 1: ...DIGITAL WIRELESS TELEPHONE Service Manual Level 3 Release 1 TDMA T2290 T2297 ...
Page 26: ... 2000 Motorola Inc TDMA T2290 T2297 Cellular Overview 16 ...
Page 40: ...Motorola Confidential Proprietary TDMA T2290 T2297 TDMA Test Mode NAM Programming 30 ...
Page 68: ...Disassembly TDMA T2290 T2297 Keypad Removal Motorola Confidential Proprietary 58 ...