Sony STR-KG800 Service Manual page 13

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1. DCAC DSP Data Line Checking
After press the [TUNING MODE] button, DCAC Factory test
mode will start, below display will show:
"DCAC x" x = 1, 2, 3, 4
If there is error happen, below display will show:
"ERR SD0x" x = 1 → D1501 or R1530 problem
x = 2 → D1502 problem
x = 3 → D1503 problem
x = 4 → D1504 problem
2. DCAC board Checking
Connect front left speaker of the receiver and AUTO CAL micro-
phone. Turn [MASTER VOLUME] jog, there will be test tone
sound output from front left speaker, and the display will change
accordingly.
"AD - xxx" xxx = 0 to 255 (depends on loudness of test tone)
RE-BOX CLASSIFICATION TEST MODE
Procedure:
1. While pressing the [MEMORY/ENTER] and [INPUT MODE]
buttons, press the [
2. The message "R.BOX[][][]XX" appears.
XX: times set powered on
VACS CONTROL TEST MODE
The VACS feature of the amplifi er is turned off purposely.
Procedure:
1. While pressing the [MEMORY/ENTER] and [2CH] buttons,
press the [ ] button to turn on the main power.
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2. The message "VACS OFF" appears.
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