STR-KM7600 - Sony Audio Service Manual (repair manual). Page 8

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)

Note
When the value reaches more than 222, the test tone will muted 
(for production line checking). Thus, the AD value will drop to 0. 
To check the AD value again, power off the receiver and re-enter 
the test mode.

VACS  CONTROL  TEST  MODE
The VACS feature of the amplifi er is turned off purposely.
Procedure:
1.  While pressing the [MUSIC] and [A.F.D] buttons, press the 

[

?/1

] button to turn on the main power.

2.  The message “VACS OFF” appears.

HISTORY MODE
* The state that the set is used is memorized.
* Procedure:
1. While depressing the [GAME]  and the [A.F.D.] buttons simul-

taneously, press the [

?/1

] button to turn on the main power.

2. “HISTORY” appears.
3. Each time the [↑] / [↓] buttons on the remote commander is 

pressed, the item is switched in order as follows.

Items
Protector Count

COUNT XX

Total single power on time

SXXXHXXM

Sound Field

SND FLD 

Input function

FUNCTION

Input Mode

INP MODE

Digital Select

DIGI IN 

Stream information

STREAM 

Signal confi guration

CO XXXXX

Headphones

HP XXX

Volume

VOL XXX

Bass Setting

BASS XXX

Treble Setting

TREB XXX

Front Level Setting

F XXX 

Center Level Setting

CT XXX

Surround Left Level Setting

SL XXX

Surround Right Level Setting

SR XXX

Surround Back Left Level Setting

BL XXX

Surround Back Right Level Setting

BR XXX

Subwoofer Level Setting

SW XXX 

Total power on time

TXXXHXXM

Muting Status

MUTE XXX

Power on counter (Rebox test mode)

P.W. XXX

Protector Type

PRT XXXX

Temperature when protect

TEM XXXC

* Procedure:

1. While depressing the [NIGHT MODE] and the [MUSIC] 

buttons simultaneously, press the power [

?/1

] button to 

turn on the main power.

2. “PROTEVER” appears.