SS-US301, SW-US301, UZ-US301 - Sony Audio Service Manual (repair manual). Page 8

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8
SS-US301/SW-US301/UZ-US301
[TEST MODE]
Procedure:
1. While pressing the 
[S-MODE]
  button and the
I/1
button,
change over the 
[AUTO POWER]
 switch from OFF to ON.
2. All LED’s light up when the test mode is activated.
3. Press the 
[S-MODE]
  button to display the version. (The
corresponding 
[VOLUME]
 LED will blink. (indicated in binary
notation))
4. Press the 
[VOLUME +]
 button to increase the volume point, or
the 
[VOLUME -]
 button to decrease the volume point.
5. Press the 
[WOOFER]
  button and the woofer level becomes
settable, and then press the 
[VOLUME +]
 button to increase
the woofer level by 2 dB (up to +6 dB), or press the 
[VOLUME
-]
 button to reduce the woofer level by 2 dB (down to –6 dB).
(LED display will shift one step each time the button is pressed)
Also, if the button is not pressed for 3 seconds, the volume
indication comes back.
6. Other buttons execute their functions respectively. (For the
APC (auto power control), the mode transits to APC mode
unless the button is pressed for 5 seconds)
7. Press the
I/1
button to turn it OFF, and the test mode is
deactivated.
8. All settings become default values when the test mode is
deactivated.
SECTION  4
TEST  MODE
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