DAV-SZ1000W, HBD-SZ1000W (serv.man2) - Sony Audio Service Manual (repair manual). Page 20

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1. Connection of the TRANSCEIVER unit(EZW-RT10/10A) is detected at the S-AIR DET 
terminal of the SYSTEM CONTROL(IC5002 40pin). When the main unit is in 
OPERATION mode, the SYSTEM CONTROL(IC5002) configures the SURROUND 
AMPLIFIER UNIT(TA-SA200WR) to OPERATION mode form STANDBY mode, by serial 
data communication.
2
The digital audio signal for SURROUND is output from the SDOUT1 terminal of the S
2. The digital audio signal for SURROUND is output from the SDOUT1 terminal of the S-
MASTER PROCESSOR(IC3001 18pin) into the DIGITAL SAMPLE RATE 
CONVERTER(IC703).
3. The output digital signal is sent to the DIGITAL SAMPLE RATE CONVERTER(IC703 
9pin) and its sampling rate is converted to 48KHz there.
4. The audio signal for the WIRELESS TRANSCEIVER (EZW-RT10/10A) is output from 
CN702.
(Note) Power supply control for the SURROUND AMP UNIT(TA-SA200WR)
Both STANDBY mode and OPERATION mode of the SURROUND AMP UNIT operate 
simultaneously with the MAIN UNIT when there is wireless communication between the 
Main UNIT and the SURROUND AMP UNIT.
If the SURROUND AMP UNIT dose not operate simultaneously with the MAIN UNIT, 
check the configuration of S-AIR ID and/or the wireless communication status.
Check the installation environment of the MAIN UNIT because the wireless
Check the installation environment of the MAIN UNIT because the wireless 
communication may not be established properly in cases like when it is installed in a 
metal rack.
(Note) When there is not sound from the SURROUND AMP UNIT(TA-SA200WR)
When there is no audio output even if the SURROUND AMP UNIT is powered 
simultaneously with the MAIN UNIT, check of the SURROUND SELECTOR of the 
SURRROUND AMP UNIT is configured properly.
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