Sansui G-3500 - Page 4

G-3500/301
G-4500/401
3. ADJUSTMENTS
* Refer to illustration of F-2924 circuit boardon next page.
3-1. FM Adjustment
Note:
1.
Selector:
a:
i242
be
a
eh
ed,
a
Se
FM
AUTO
3.
Connection
...
Connect
the
output
of
genescope
to
2.
FP
MoMUtING
SWITCH.
4-6
wee
eee
A
OFF
TP
through
100
pF
ceramic
capacitor.
GENESCOPE
DETECTOR
PROBE
BLOCK
Oo”
4.7k2 10pF
N ©
O TAPE
ANT REC
AUDIO OSC
1) FM IF Adjustment & Dial Calibration
FEED SIGNAL
STEP!
SUBJECT
parent
ADJUST
|
ADJUST
FOR
REMARKS
1. IF Coil Output 80 dB TPO1 TPO2 TO1 Max. IF waveform
Genescope F-2924 F-2924
Use Detector
Probe
T02, T03 Steep linearity of
F-2924 S curve
Make symmetrical
S curve
T02, T03
F-2924
Sameas_ | Tuning Meter T02 Center on Meter Tuning
Discriminator
Coil
Discriminator | 98 MHz ANT Input 65 dBf ANT REC terminal
Coil 59.8 dB) 1000 Hz terminal | Dist Meter
In case of using | (100% MOD) FM SSG 3002
Dist Meter
98 MHz ANT Input 65 dBf
{59.8 dB) 1000 Hz
(100% MOD) FM SSG
Tuning Meter
Ww
4. | 90 MHz 90 MHz ANT Input 65 dBf Same as REC terminal LO3
Dial {59.8 dB} 1000 Hz above VTVM & Scope {| F-2924 Rieke: aa aenng FM 88 92
Calibration
(100%
MOD)
FM
SSG
igs
raatoer
ear
teanteafer
HB
0
on Signal meter &
106 MHz 106 MHz ANT Input 65 dBf. = |Sameas |Sameas above | TCO3 Fee
Dial (59.8 dB) 1000 Hz above F-2924 i te sa | cael
Calibration (100% MOD) FM SSG
5. | 90 MHz 90 MHz ANT Input Minimum Same as_ | Same as above L01,L02 Same as above
RF
Adj.
value
with
sine
wave
1000
Hz
above
F-2924
(100% MOD) FM SSG | ~
106 MHz 106 MHz ANT Input Minimum | Sameas | Same as above TCO1, TCO2| Same as above
RF Adj. value with sine wave 1000 Hz above F-2924
(100%
MOD)
FM
SSG
.
6. | Signal Meter 98 MHz ANT Input 65 dBf
(59.8 dB) 1000 Hz
(100% MOD) FM SSG
Volume
Same as Signal Meter VRO3 4.3 on Meter
above F-2924 a ae ee