STR-DH500 - Sony Audio Service Manual (repair manual). Page 9

HISTORY MODE
* The state that the set is used is memorized.
* Procedure:
1.  While depressing the [TUNING –]  and the [2CH/A.DIRECT] 

buttons simultaneously, 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

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

DCAC FACTORY TEST MODE 
(Except US, Canadian model)
DCAC Factory Test mode have two stages:
1.  DCAC DSP Data Line Checking
2.  DCAC board Checking

 

Factory Test System Setup

 

 

1. When 

power 

off:

 

Press the three buttons [INPUT MODE] + [MOVIE] +  [

?/1

].

 “DCAC

[]

FTM” appears.

 

Afterward, press the [DISPLAY] to start DCAC factory test 
mode.

1. DCAC DSP Data Line Checking
After press the [DISPLAY], DCAC Factory test mode will start, 
below display will show:
“DCAC

[][][]

x” x=1, 

2, 

3

If there is error happen, below display will show:

“ERR

[]

SD0x” x=1 

t D1501 or R1530 problem

 x=2 

t D1503 problem

 x=3 

t 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)

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.