Level Diagram - Kenwood NX-5700 Service Manual

LEVEL DIAGRAM

Receiver section
5
RF (Center Frequency)
-122dBm -123dBm
D310
ANT D311
D312
C372 D313 C562
ANT
LPF BPF
4
3
Transmitter section
AF (1kHz)
5mVrms
IC902
2
MIC SSI
CODEC
1
A B
-124dBm -114dBm -116dBm
C548 Q502 C545 C521 IC500 C500 XF600 C663 Q604 C658 Q603 C653
BPF
RFAMP
RX VCO/PLL
To make measurements in the AF section, connect the AC level meter.
(ANT input: –53dBm, 1kHz FM, 3kHz DEV (Wide). SP output: 4W@4ohm Load)
In the RF section, use 1000pF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINAD.)
AF
(1kHz)
0.35dBm
115.2mVrms
IC706 IC902
C150 Q107 C189
SSI
CODEC VCO
To PLL IC
C
(No.RA020<Rev.002>) 2-12
1st IF (49.95MHz)
-119dBm -113.5dBm -106dBm
BPF IFIC
MCF IFAMP IFAMP IC600
RF (Center Frequency)
0dBm 14dBm 17dBm
L134
L135 C304 IC300 C312 Q300 C334
Pre-
Coupler
Drive
Drive
* Transmit frequency : 155MHz
D E
2-12 (No.RA020<Rev.002>)
AF (1kHz)
141mVrms
IC706 IC902 C927 IC903
SSI
CODEC
C944 IC911 C969
28.8mVrms
50W(K,F)
48dBm(K,F)
47.8dBm(K,F)
25W(E)
45dBm(E) 44.8dBm(E)
ANT
IC302 C350 C372
Final ANT
LPF
F G
116mVrms
IC719
VOL