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FM Polar Adjustment (East European, CIS models only)
Connection 1:
Connection 2:
Adjustment Location :
East European, CIS:
[TCB BOARD] (Component Side)
Procedure :
1. Set the modulation of FM RF SSG to AUDIO 1 kHz, 10 kHz
deviation according to “Connection 1”.
2. Tune the set to 69 MHZ.
3. Adjust the RV1702 so that the reading of frequency counter
connected to TP1702 becomes within 31.25 kHz ± 0.05 kHz.
(VCO Adjustment)
4. Then record the reading of the level meter connected to TP1701
5. Set the modulation of FM RF SSG to AUDIO 31.25 kHz, 10
kHz deviation according to “Connection 2”.
6. Tune the set to 69 MHz.
7. Set the CT1701 to be mechanical center.
8. Adjust the L1701 so that the reading of the level meter con-
nected to TP1701 become maximum.
Then adjust the CT1701 so that the reading of the level meter
connected to TP1701 becomes maximum. (SUB CARRIER
PEAK Adjustment)
9. Adjust the RV1701 so that the level at the moment becomes
14dB higher value than the level recorded in step 4. (SUB CAR-
RIER LEVEL Adjustment)
[TCB BOARD] (Conductor Side)
FM ANTENNA terminal
(75
Ω
)
75
Ω
coaxial
set
FM RF SSG
AF OSC
Audio 31.25 kHz
external
modulation
terminal
Carrier frequency: 69 MHz
Output level : 1mV (60 dB
µ
) (at 75
Ω
open)
Modulation : AUDIO 31.25 kHZ, 10 kHz deviation
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