HT-DDWG800, STR-KG800 - Sony Audio Service Manual (repair manual). Page 13

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

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 [

?/1

] button to turn on the main power.

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 [

?/1

] button to turn on the main power.

2.  The message “VACS OFF” appears.