Advertisement
| SRF-M33/M43
SECTION 2
ELECTRICAL ADJUSTMENTS
SECTION 3
DIAGRAMS
3-1.
SEMICONDUCTOR LEAD LAYOUTS.
O0lgF
Tp
ANT
input terminal
FM TRACKING ADJUSTMENT
Adjustment Location: main board
a
"
MARKING
SIDE VIEW
£22.5kHz frequency deviation
'Adjust for a maximum reading on VTVM.
prooeen)
by 400Hz signal
;
Cr2
Led, L42
Output level: as low as possible
CXA1249M
108MHz
875MHz
a
A
VIVM
160
Cz]
AM FREQUENCY COVERAGE ADJUSTMENT
KV1560
Adjustment
Frequency
Reading on Digital
dl
_
+
Part
Display
voltmeter
fF ee
L6
530kHz (531kHz)
14V
1
7
headphones jack
Note: Not use the AM rf signal generator in this adjustment.
(TOP view)
CT
AM TRACKING ADJUSTMENT
LA4S33M
2
res
4
=
9876
Adjust for a maximum reading on VTVM.
q
CTL
|
13
RD13M-B2
1,490kHz (1,395kHz)
580kHz (621kHz)
3
'AM RF signal
Q
pee
Put the lead-wire
12345
:
antenna close to
Adjust for a maximum reading on VTVM,
"
the set.
0KH
=
$-8052ANB-NE-S
we
<a
Note: RECEIVE 1,710kHz (1,602kHz)
23
9
30% amplitude
(_
): AEP, E, Germany, Italian model
modulation by
182836
400Hz signal
3
Output level: as low as possible
FM VCO Adjustment
ve
ke
Procedure:
Pe
ey
,
os
FM rf signal
TP
2
Repeat the procedures in each adjustment several times,
generator
am
ae
+.
+
*
*
input
termina!
and the tracking adjustments should be finally the trimmer
P
#PC393G2
capacitors.
fe
7S
1T32
Carrier frequency: 98MHz
Modulation: no modulation
Output level: 1mV (60dB)
t2364
{10P WeEW)
ANODE
CATHODE
#PD1724GB-586-1A7
Advertisement
