Read Sony DAV-LF1 / SA-WSLF1 Service Manual online
7
SA-WSLF1
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 TP815 (RF AMP OUT) and GND
on the DIAT TRANSMITTER board.
2. Connect DIR-T1 to DIR-T1 jack (J908).
3. Adjust RV801 on the DIAT TRANSMITTER board so that
3. Adjust RV801 on the DIAT TRANSMITTER board so that
the center of waveform becomes Trig level 1.05 Vp-p.
(*Trigger position: –4 div)
(*Trigger position: –4 div)
4. Confirm trigger is locked.
5. Adjust RV801 on the DIAT TRANSMITTER board so that
5. Adjust RV801 on the DIAT TRANSMITTER board so that
the center of waveform becomes 2.2 to 2.4 Vp-p.
SECTION 3
ELECTRICAL ADJUSTMENT
VOLT/DIV : 500 mV
TIME/DIV : 500 ns
TIME/DIV : 500 ns
level : 2.2 to 2.4 Vp-p
– DIAT TRANSMITTER Board (SIDE A) –
TP815
(RF AMP OUT)
IC804
IC805
TP815
(RF AMP OUT)
DIAT TRANSMITTER
board
board
oscilloscope
Adjustment Location:
RF Signal Reference Waveform
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