DAV-DS1000, SA-IR1000 - Sony DVD Service Manual (repair manual). Page 2

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 Connect the SA-WS1000 to the DVX-DS1000. Set up the system so that the infrared signal from the front speaker (SS-IF1000) can

be received by the rear speaker (SA-IR1000).

 The POWER LED of this unit (SA-IR1000) lights in red when the power of the SA-WS1000 is turned off (when data is not

transmitted.)
When the power of the SA-WS1000 is turned on and the infrared signal from the front speaker (SS-IF1000) is received by this unit
(SA-IR1000), the POWER LED of this unit (SA-IR1000) lights in green.

Check procedure:
1. Connect a spectrum analyzer and an oscilloscope to the connector CN110 pin-2 of F/E board.

PD
board

F/E
board

CN110   2   pin

Infrared
Transmission 

Front speaker
(SS-IF1000)

Spectrum analyzer
or Oscilloscope

2. Confirm that the spectrum is displayed as shown in Fig. 1 on spectrum analyzer. Also confirm that the waveform as shown in Fig. 2

is  displayed.

4.5MHz

↓

Fig. 1

Fig. 2