TK-2402(V)/2402/2406/2407
40
LEVEL DIAGRAM
FM IC
BASEBAND
IC
CML
ANT
W:-107.0dBm
W:52mVr
ms
N:37mVr
ms
W:0.28Vr
ms
10.3Vr
ms
0.73Vr
ms
IC707
IC705
IC401
XF400
MIXER
Q404
Q405
RF (CENTER FREQ
UENCY)
IF1 (38.85MHz)
IF2
450kHz
AF (1kHz)
IC705
BASEBAND
IC
CML
C81
-5dBm
C228
H:33dBm
L:24dBm
ANT
50
Ω
MIC
W/N:18.08mVr
ms
-2dBm
C74
13dBm
C216
AF (1kHz)
RF (CENTER FREQ
UENCY)
LNA
Q403
IF AMP
J601
EXT
SP
BASEBAND
IC
CML
IC705
10
4
26
16
16
17
9
16
AMP
CF 401
0.6Vr
ms
20.5Vr
ms
N:0.22Vr
ms
W:-8
9
.0dBm
N:-8
9
.5dBm
W:-87.0dBm
N:-87.5dBm
W:-117.0dBm
N:-116.0dBm
W:-101.5dBm
N:-101.5dBm
W:-10
9
.0dBm
N:-10
9
.0dBm
W:-118.0dBm
N:-118.0dBm
G1
D
G1
D
W:-121.0dBm
N:-120.5dBm
21
IC705
BASEBAND
IC
CML
20
24
Q
9
Q10
C268
Q208
FINAL FET
D203
D204
Q201
PRE DRIVE
AMP
20
W/N:87.2mVr
ms
W:138.3mVr
ms
N:6
9
.1mVr
ms
TX VCO
H:5W
L:1W
C21
9
Q206
DRIVE FET
12dBm
H:17dBm
L:10dBm
T
o mak
e measurements in the AF section, connect the A
C le
v
el meter
.
(ANT input:
–53dBm,1kHz FM, 1.5kHz De
v (Narro
w)).
In the RF section, use a high impedance probe
. (ANT input:
–53dBm, MOD off).
A
G is set to the MIC input becomes 1.5kHz De
v, At 1kHz MOD
. (Narro
w)
T
o mak
e measurements in the AF section,connect the A
C le
v
el meter
.
In the RF section, use a 1000pF coupling capacitor
.
Receiver Section
T
ransmitter Section
Summary of Contents for TK-2402
Page 42: ...TK 2402 V 2402 2406 2407 ...
