I
TUNER ADJUSTMENTS
a. PARTS LOCATION
b. AM
Adjustment
step Adjusting
Circuit
1
IF
2
Tuning
coverage
3
4
Tracking
5
c. FM Adjustment
SG Modulation : lkHz,30%
Connections
Input
I
output
Connect sweep
“os.ed ‘he ‘Utput
generator to IC211
termmal by sweep
19pin (H)& IC211
generator
5pin (E)
Connect AM SG to Connect VTVM to
test loop speaker terminals
Connect AM SG to Connect VTVM to
test loop
speaker terminals
SG
I
Position of
I
Adjustment
VTVM
Frequency tuning dial
Oscilloscope
450 kHz
(at 1000kHz)
Low XF215
A
520kHz
522 kHz(XE)
Low end
I
L2205
I
1.05&o.05v
1710kHz
1611 kHz(XE)
High end
I
I
3.9k0.8 V
Antenna : 75f2 unbalanced , Modulation :1 kHz
Dev.
:
*22.5 kHz(Mono) *22.5 KHz(Stereo) ~6.75KHz(Pilot)
step Adjusting
Connections
SG
. .
‘oS.’t’on .of Adjustment
VTVM
Circuit
Input
1
output
Frequency tuning dial
Oscilloscope
1 IF
2
Tuning
coverage
3
4
Tracking
5
Connect sweep
Connect sweep
generator to generator to IC211
10.7 MHz
IC201 1pin(H)&
18pin(H) & IC211 (at 98MHz)
-
IC201 5pin(E)
5pin(E)
+
87.9 MHz
Connect VTVM to 87”5MHZ(XE)
Low end
1.75to.5 v
speaker terminals
107.9 MHZ
108.OMHZ(XE)
High end
L2002
5.oto.l v
90. IMHZ
90.0 MHz(XE)
Low end
Connect FM SG to
Connect VTVM to
antenna terminal
Max.
speaker terminals
106.1 MHz
I06,0MHZ(XE)
High end
-2-