Kenwood TK-7108 Service Manual page 71

450kHz
W : –85.0dBm
N : –84.5dBm
CF1
W/N
/CF2
0.33Vrms
IC301 IC251
9
11
vel meter.
2dB SINAD.)
To make measurements in the AF section, connect the AC level meter.
(ANT input : –53dBm, 1kHz FM, 3kHz DEV (Wide)/1.5kHz DEV (Narrow))
The AF output level is adjusted for a 0.45V/4Ω by the front panel AF VOL control.
TX-RX Unit (VCO)
–7dBm –8dBm
Q406 Q410
2
To make measurements in the RF section, connect the RF Wattmeter (50Ω).
LEVEL DIAGRAM /
W/N W/N
0.32Vrms 0.26Vrms
IC251 IC251
8 12 14 3 1
TX-RX Unit
–5dBm
D409
IC402
Q411
1
Audio Frequency
W/N W/N
0.30Vrms 0.31Vrms
IC251
Q251
12
5 7
–9dBm 11dBm
Q501 Q502
TK-7108
W/N W/N W/N
10mVrms 0.50Vrms 0.45Vrms
IC161 IC252
11 10 1
J1
Power
Module TX-RX Unit
19dBm
25W
IC502
D602
ANT
67