HT-ST5 - Sony Audio Service Manual (repair manual). Page 5

MODEL  IDENTIFICATION
Distinguish by Part No. and destination code on the rear side of a main unit.

Part No.

(US and Canadian models)

Destination code

Destination code

(Australian and Taiwan models)

Part No.

US, Canadian

4-543-310-0[]

UC2

Australian

4-543-823-0[]

AU1

Taiwan

4-543-824-0[]

TW2

RELEASING  METHOD  OF  DEMO  MODE
This unit is equipped with demonstration mode for sales promo-
tion. When repairing this unit, release the demonstration mode if 
necessary.

Checking and releasing method of the demonstration 
mode state:
1.  Press the two buttons of the [

?/1

] and [VOL–] on the main 

unit simultaneously for about fi ve seconds, or press the buttons 
on the remote commander within fi ve seconds in order of [RE-
TURN] 

→ [ENTER] → [INPUT] → [MUTING] → [INPUT] 

→ [MUTING].

2.  When the message “DM OFF” is displayed on the fl uorescent 

indicator tube, this unit is the state of the normal mode. 

 

When the message “DM ON” is displayed on the fl uorescent 
indicator tube, this unit is the state of the demonstration mode. 
Operate the step 1 again, and change that message “DM OFF” 
is displayed on the fl uorescent indicator tube.

Information: When this unit is the state of the demonstration mode and in-

sert the power cord to the AC outlet, the message “DEMO” 
is displayed on the fl uorescent indicator tube momentarily 
and turn the power on automatically

.