Sansui T-80 - AM Adjustment and Dial Calibration

® Selection of Intermediate Frequencies (FM) (Refer to
parts location F-3000 on page 6) ....... <T-80 Only>
The digital locking point differs with the frequency rank of the ce-
ramic filter used in the F-3130. When the central frequency (shown
by a color) of the ceramic filter is changed, the following connec-
tion must be made by using jumper wires:
@ Unify the color marks of the FM ceramic filters (CF01, CFO2) on
the F-3130 with the same color.
@ Select the joints A, B, and C of F-3000 according to color marks
as shown in the following table:
Connecting Position of
Diode on F-3000
Connecting Position of
Jumper wire on F-3000
Intermediate
Colour-
i frequency
10.64MHz
10.66MHz
10.68MHz
10.70MHz
Orange 10.72MHz
Gray
ra
10.74MHz
10.76MHz
Fig. 2-2
D23,22,2!
026, 25,24
Component View
ABCXYZ
r~@ Abbreviations
<Equipment>
AM FM Generator Oscilloscope .......-..- Genescope
AM Standard Signal Generator . . . AM SSG
FM Standard Signal Generator . . . FM SSG
FM Stereo Generator ....... . Stereo SG
Oscilloscope... ....- . Scope
Audio Oscillator ... Audio Osc.
Distortion Meter Dist. Meter
<Others>
Antena ss 5.5% dese tice die ah as iotene Boahare: 8 ANT.
Modulation . 2... 6... ee ee ee es MOD.
[_ Tota Harmonic Distortion .........-06- T.H.D.
2-2. AM IF Adjustment & Dial Calibration (See Top View on Page 8)
Note: 1. Selector
IF Coil Adj.
600 kHz
Dial Calibration
<T-80>
600 kHz ANT
600 kHz
Dial Calibration | ANT Input 60 dB terminal
<T-60> 400 Hz (30%MOD.)
AM SSG
1400 kHz
Dial Calibration
<T-80>
1400 kHz 1400 kHz ANT
Dial Calibration | ANT Input 60 dB terminal
400 Hz (30%MOD.)
AM SSG
1400 kHz 1400 kHz ANT Input 50 dB
RF Adj. 400 Hz (30% MOD.) AM SSG
<T-60>
FEED SIGNAL MEASURE
SUBJECT FROM OUTPUT ADJUST ADJUST FOR
Genescope TC04 TPO06 CF03, TO05 Max. Waveform
Output 60 dB F-3130 F-3130 F-3130
a_i
Same as Same as above TCO4 Max. Output
above
REMARKS
Tuning knob | 600 kHz
Indication of T04
digital display F-3130
unit
OUTPUT T04 Max. Output
L-CH or R-CH F-3130
VTVM & Scope
Tunign knob | 1400 kHz
Indication of TCO5 1400 kHz
digital display F-3130
unit
Tuning knob | 1400 kHz
OUTPUT TCOS Max. Output
L-CH or R-CH F-3130
VTVM & Scope
| a Fa
535
ar
Paar ae |
200 } 1605,
SATs