Sony STR-K790 Service Manual - Page 12

Str-k790, Electrical Adjustment - receiver

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STR-K790 Ver. 1.1 TUNER SECTION [FM Auto Stop Check] SET SECTION 3 ELECTRICAL ADJUSTMENT generator OUT (75 Ω) Procedure: 1. Turn the power on. 2. Input the following signal from Signal Generator to FM antenna input directly. * Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz Deviation : 75 kHz Modulation : 1 kHz ANT input : 35 dBu (EMF) Note: Please use 75 ohm "coaxial cable" to connect SG and the set. You cannot use video cable for checking. Please use SG whose output impedance is 75 ohm. 3. Set to FM tuner function and scan the input FM signal with automatic scanning. 4. Confirm that input Frequency of A, B and C are detected and automatic scanning stops. The stop of automatic scanning means "The station signal is received in good condition." 12

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12
STR-K790
SECTION
3
ELECTRICAL ADJUSTMENT
[FM Auto Stop Check]
Procedure:
1.
Turn the power on.
2.
Input the following signal from Signal Generator to FM
antenna input directly.
*
Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
: 75 kHz
Modulation
: 1 kHz
ANT input
: 35 dBu (EMF)
Note:
Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3.
Set to FM tuner function and scan the input FM signal with
automatic scanning.
4.
Confirm that input Frequency of A, B and C are detected and
automatic scanning stops.
The stop of automatic scanning means “The station signal is received
in good condition.”
TUNER SECTION
generator
OUT (75
Ω
)
SET
Ver. 1.1