Kenwood NX-800 Service Manual page 101

–82.0dBm –82.0dBm
IF AMP
CF203 (ASIC)
IC201
E1
CF IC510
W:354mVrms W:198mVrms
N:177mVrms N:99mVrms
(EVOL)
DEV, BAL
1 3 6
IC712
TX VCO
MOD
VCTCXO
MB
19.2MHz
LEVEL DIAGRAM
186mVrms 226mVrms
(RXAF SMF)
K1 3 4
IC701
AF VTVM
AF level obtained when the AF output level is adjusted for 4.00V/4Ω
with the front panel AF VOL control. Measured with AF voltmeter
connected to the external speaker jack, receiving a –53dBm SSG
signal modulated at 1kHz, DEV. WIDE 3kHz (NARROW 1.5kHz).
W:198mVrms
N:99mVrms
(VCO_MOD) (TX VCO)
7
IC5 Q6
-2.5dBm
Buff AMP Drive AMP Drive AMP
Q9 Q10 Q101
Audio Frequency
226mVrms
(EVOL)
VOL=20
(RX SUM)
6 7 13
IC711 IC712
6.5dBm +17.5dBm
Drive AMP Final AMP D103,D106,
Q102 IC102
Gate
bias
PC
DC DC
AMP AMP
MP
IC101 IC103
NX-800
96mVrms
(SP AMP)
14 1 4
IC715
30W
D216
SW ANT Filter
D108 D109 D110
DET DET DET
4.00Vrms
J701
ANT
101