DAV-SZ1000W, HBD-SZ1000W (serv.man2) - Sony Audio Service Manual (repair manual). Page 7

1. When AC power cord is connected, the main unit enters to OPERATION MODE 

automatically without WAKE UP key input by the remote commander or by the 
main unit. The SYSTEM CONTROL(IC5002 32pin) outputs P_CONT1 signal and 
then the power circuit outputs each voltage. The SYSTEM CONTROL(IC5002 
41pin) also outputs P CONTFL signal and outputs voltage concerning

41pin) also outputs P_CONTFL signal and outputs voltage concerning 
FLUORECENT INDICATOR TUBE. 

2. The SYSTEM CONTROL(IC5002) makes backups of such data as “function 

used” and “volume level setting” at the end of previous use, storing them in 
internal memory when it is turned off. It configures the function and volume 
settings by retrieving those data.

3. When the power button is pushed after the main unit is booted and enters 

p

p

STANDBY MODE, the SYSTEM CONTROL(IC5002) checks SIRCS_IN(IC5002 
4pin) by key input from the remote commander or key input form the main unit, 
with each terminal of the SYSTEM CONTROL(IC5002 94,95,97pin).

(Note) When unable to wake up from STANDBY mode

•

While the other button of the main unit is being pushed down, or there is loose 

g p

,

connection and such failure at the key detection signal line, you may not be able 
to wake it up from the STANDBY MODE. In this case check if it can be booted up 
by the remote commander.

•

Conversely, when the acceptance surface of remote commander is contaminated 
with fingerprints and such, the main unit may not be able to booted up by the 
remote commander. In this case check the operation by using the keys of main 
unit

7

unit.

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