Alignment For Signal Strength Level - Sangean ATS-818 Service Manual

(11) ALIGNMENT FOR SIGNAL STRENGTH LEVEL
a. Required Instrument
FM Signal Generator
AM Signal Generator
'b. Alignment Procedure
Mode | Adjustment Procedure
(1) Turn the radio ON.
(2) Connect a FM signal generator to the input terminal of Rod Ant. (TP2)
—M SVvR3 (3) Set the signal generator to 98MHz with 1kHz Mod, 22.Hz deviation and 36 emf
dBw75 ohm output level.
(4) Tune the radio band frequency to 98MHz and adjust SVR3 to have a strength
L _|___level reading of 6th scale.
(i) Turn the radio ON.
(2) Set the bandwidth switch to WIDE and RF GAIN VR to MAX position.
(3) Tune the radio band frequency to 15.100MHz.
(4) Feed a signal with 30% modulation and 36 emf dBy/50 ohm output level into the
AM EXT. ANT. Jack.
(5) Tune the generator frequency exactly the same as that of the radio frequency
displayed
(6) Adjust SVR¢4 to have a strength level reading of Sth scale.
AM SVR4
Caution : Before these signal strength alignment procedures, the SVRS (for Battery level) should be in
correct position.
c. Instrument Connection
Insert to the AM Signal Generator
sVR4 AM EXT. ANT. jack JK1
[For SVI i
svr3[ oy of 0) (For SVR4 Alignment)
3.50 Plug
FM Signal Generator
Ways
Rete,
Test Point
TP2
(For SVR3 Alignment)