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TUNER ADJUSTMENTS
(3). TUNING FREQUENCY
RANGE ADJUSTMENTS
FM-SG
FM BAND
(EUROPE/ASiA)
OSCILLOSCOPE
@
00
FM Band: Set the internal modulation
of Singnal
ACEVM
OQO
:
generatortolf(Hz
Dev. 22.5KHz
OOQ
I I
lull
NO.
BAND
SIGN.
ADJUST FOR
ADJUSTMENT
I I
FRE.
I I
1
FM
87.35MHz
MAXIMUM
L803
I I
SENSITIVITY
2
FM
108.5MHz
MAXIMUM
TC1 (PVC
SENSITIVITY
TRIMMER)
.-.. .
3
REPEAT STEP 1 AND 2 SEVERAL
TIMES
AM-SG
AM BAND
OSCILLOSCOPE
Iiiiiil
Um
p.
~:
000
00
c)
•ill
AM LOOP ANT
+-
+-
1
AM Band: Set the internal modulation
of Singnal
generator to, 30% 1 KHZ
" NO.
BAND
SIGN.
ADJUST FOR
ADJUSTMENT
FRE.
4
AM
515 KHz
MAXIMUM
L804
SENSITIVITY
5
AM
1640KHz
MAXIMUM
TC3 (PVC
SENSITIVITY
TRIMMER)
6
REPEAT STEP 4 AND 5 SEVERAL TIMES
(FIG.3)
(4).AM TRACKING
ADJUSTMENT
Signal
Generator
. . . . . .
Connects to the
AM ANT.
Coil through the loop antenna.
Adjust for the indication of Vl\~M of the wave form scope to be maximum.
AM-SG
OSCILLOSCOPE
(EUROPE/ASIA)
P
1
000
,
ala
AC EVM
Ogo
Ooq
OUT
P
6Q
.
AM LOOP ANT
1
1-:
+
I
I
.
,
BAND STEP
SIGN.
ADJUST FOR
ADJUSTMENT
FRE.
1
600 KHZ
MAXIMUM
L805
SENSITIVITY
(ANT COIL)
AM
2
1400KHZ
MAXIMUM
TC4 (PVC
SENSITIVITY
TRIMMER)
3
REPEAT STEP 1 AND 2 SEVERAL TIMES
(F[G.4)
(5). FM
RF TRACKING
ADJUSTMENT
Signal Generator . . . . . . Comects to the
FM ANT JACK (FM IN)
through the dummy.
FM-SG
OSCILLOSCOPE
a
00
AC EVM
IZsl
:
Oofq
0000
I I
IIm
I I
+G
+-
1 I
75 OHM i 1
I I -
OUTPUT
I I
FM ANT
#
I BAND I STEP I SIGN.
I
ADJUST FOR
iADJLfsTMENT~
FRE.
1
90MHZ
MAXIMUM
L803
SENSITIVITY
2
98 MHz
CHECK
MAXIMUM
FM
SENSITIVITY
3
106MHZ
MAXIMUM
TC2 (PVC
SENSITIVITY
TRIMMER)
4
REPEAT STEP 1 AND 3 SEVERAL TIMES
1
I
(I: IG.5)
-2-
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