Sansui TA-300 - Page 4

TA-300/500
(1) FM IF, RF Adjustment and Dial Calibration (See Top View on page 7)
Note: 1. Selector . 2. 2... ee ee ee ee eee FM AUTO
2. FM Muting Switch .......... OFF
3. Connection ....
Connect the output of genescope to TCO2
through 100 pF ceramic capacitor.
FEED SIGNAL MEASURE
STEP | SUBJECT FROM OUTPUT ADJUST ADJUST FOR REMARKS
1
IF Coil Output 80 dB ; TCO2
Genescope Front-end
ie
Coil
90 MHz ANT
ANT input 65 dBf terminal
in case of using | (59.8 dB) 1000 Hz 3002
Dist Meter 100% MOD) FM SSG
: _
4. | 106 MHz 106 MHz
Dial ANT Input 65 dBf
Calibration 59.8 dB) 1000 Hz
100% MOD) FM SSG
.
RF Adj.
(2)
FM
STEREO
Adjustment
(See
Top
View
on
page
7)
6. | Signal Meter
Volume
Note: 1. Selector .....------- eae FM AUTO
2. FM Mode Switch .......... auto
FEED SIGNAL
STEP | SUBJECT
PLL
VCO Adj.
Discriminator
Coil
106 MHz |
ANT Input Minimum
Value with sine wave
100 Hz (100% MOD)
FM SSG
98 MHz
ANT Input 65 dBf
59.8 dB) 1000 Hz
100% MOD) FM SSG
98 MHz
| ANT Input 65 dBF
(59.8 dB) FM SSG
Pilot 19 kHz (9% MOD)
SUB 1 kHz + Pilot
(100% MOD)
STEREO SG
ANT terminal
3002 —
PLL 98 MHz Same as above
VCO Adj. ANT Input 65 dBf
in case of 59.8 dB) FM SSG
using: Freq. noMOD) |
| counter.
2. | Separation 98 MHz Same as above
ANT Input 65 dBf
(59.8 dB) FM SSG
Pilot 19 kHz (9% MOD)
R Mode-1 kHz +
Pilot (100% MOD)
STEREO SG
lead wire of R11
F-2988
(Use Detector
Probe)
lead wire of R23
TO2
F-2988 TO01
F-2988
REC OUT T01
L or R-CH TOQ2
Dist Meter F-2988
Tune Meter TO01 Center to Meter
F-2988 .
IF TO1 Max. IF waveform
Steep linearity of
S curve
Make symmetrical
spit
S curve
Minimum
THD
a eee |
REC OUT TCO3 Max. Indication
L or R-CH Front-end on signal meter & ar re
VTVM & Scope VTVM & Scope. we fee
Center Indication
on Tune Meter
Front-end
Same as above TCO1, TCO2
nel
Signal Meter’ VRO1 4.3 on Meter
F-2988 12 ae as
Ce RE
Ce ADJUST | Aojust FoR | Aojust FoR REMARKS
Stereo indicator
lead wire of R39
F-2988
Use Freq.
counter
VRO3 Adjust the VRO3
F-2988 within center of
lighting level
VRO3 19 kHz +50 Hz
F-2988
REC OUT VRO2 OUT —40 dB Confirm separation
L-CH F-2988 L-CH -R-CH
VTVM & Scope