Read Sony STR-DH520 Service Manual online
STR-DH520
11
11
SECTION 4
DIAGRAMS
• Circuit Boards Location
FM AUTO STOP CHECK
generator
OUT (75
Ω)
set
Procedure:
1. Turn on the set.
2. Input the following signal from Signal Generator to FM
1. Turn on the set.
2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Frequency: A=87.5 MHz, B=98 MHz, C=108 MHz
Deviation
Deviation
: 75 kHz
Modulation : 1 kHz
ANT input
ANT input
: 35 dBu (EMF)
Note:
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. Confi rm 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.”
received in good condition.”
SECTION 3
FM TUNER CHECK
DISPLAY board
HEADPHONE board
POWER KEY board
MAIN board
STANDBY-A VIDEO MT PC board
DCDC board
HDMI RE PC board
TUNER (FM/AM)
DIGITAL board
TEMP-SENSOR board
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