Read Sony STR-KSL900W Service Manual online
STR-KSL900W
6
SECTION 3
ELECTRICAL ADJUSTMENT
DIAT SIGNAL RF LEVEL ADJUSTMENT
This adjustment is performed in order to adjust the transmission
distance of RF signal for DIAT communication.
Connection:
distance of RF signal for DIAT communication.
Connection:
Procedure:
1. Connect the oscilloscope to JL7003 (RF AMP OUT) and GND
on the TX board.
2. Connect DIR-T1 to DIR-T1 jack (J7001).
Note:
Be sure to connect DIR-T1 before the adjust.
3. Adjust RV7001 on the TX board so that the center of waveform
becomes 1.0 Vp-p.
4. Confirm trigger is locked.
5. Adjust RV7001 on the TX board so that the center of waveform
5. Adjust RV7001 on the TX board so that the center of waveform
becomes 2.2 to 2.4 Vp-p.
RF Signal Reference Waveform
VOLT/DIV : 500 mV
TIME/DIV : 500 ns
TIME/DIV : 500 ns
level : 2.2 to 2.4 Vp-p
JL7003
(RF AMP OUT)
TX board
oscilloscope
– TX Board (Component Side) –
JL7003
(RF AMP OUT)
Adjustment Location:
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