TK-290-11B
42
LEVEL DIAGRAM
FM IF
SYSTEM
C85
L201
L202
L205
L206
IC200
Q200
–117.5dBm
–118.5dBm
–109.0dBm
–94.5dBm
–108.5dBm
–104.5dBm
–110.5dBm
–
104.5dBm
177mV
rms
220mV
rms
ANT
XF300/
XF301
C304
Q302
C308
IC601 (2/2)
*
5
4
3
41
IC607
I5
O5
IC603
DAC
AF
AMP
500mW
(BTL)
SP
IC1
IC604 (2/2)
*
169mV
rms
248mV
rms
80mV
rms
773mV
rms
25mV
rms
I4
O4
IC603
DAC
*
EMC
12
LPF
13
ALC
COMP
SW
IDC
6
98
19
18
15
16
C661
10.0mV
rms
9.8mV
rms
9.4mV
rms
15.8mV
rms
129mV
rms
427mV
rms
413mV
rms
442mV
rms
66mV
rms
MIC
(MAIN)
IC3
NC AMP
IC607
IC605 (1/2)
*
VCO
L800
PLL
C42
–1.7dBm
Q5
Q6
Q8
C45
RX LO
D7
+2.3dBm
+9.6dBm
+16.4dBm
C59
C
69
ANT
1.0W
Power
module
RF (169.1MHz)
RF (169.1MHz)
AF
AF
AF
IF (44.85MHz)
IF2
(455kHz)
Receiver Section
Transmitter Section
To make measurements in the AF section, connect
the AC level meter. (ANT input : –53dBm, 1kHz FM,
2.4kHz DEV.)
In the RF section, use a 1000pF coupling capacitor.
(The display shows the SSG input value required to
obtain 12dB SINAD.)
AG is set to the MIC input becomes 2.4kHz DEV. at
1kHz MOD.
To make measurements in the AF section, connect
the AC level meter.
In the RF section, use a 1000pF coupling capacitor.