DOWNLOAD Sony HT-DDW3000 / STR-KM3000 Service Manual ↓ Size: 3.95 MB | Pages: 54 in PDF or view online for FREE

× 8)

RB five screws

× 8)

RT screw (BVTP3 × 8)

× 8)

× 8)

RE back panel block

× 8)

× 8)

STR-KM3000

Procedure:
1.  Turn on the set.
2.  Input the following signal from signal generator to FM antenna 

input directly.

Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation 

: 75 kHz

Modulation 

: 1 kHz

ANT input 

: 1 kHz

Note:  Use 75 ohm coaxial cable to connect signal generator and the set. 

You cannot use video cable for checking.

 

Use signal generator whose output impedance is 75 ohm.

3.  Set to FM tuner function and scan the input FM signal with 

automatic scanning.

4. Confi rm that input frequency of A, B and C are detected and 

automatic scanning stops.

When the station signal is received in good condition, automatic 
scanning stops.

FL  CHECK  MODE
All fl uorescent segments are tested. When this test is activated, all 
segments turn on at the same time, then each segment turns on one 
after another.
Procedure:
1.  When pressing the [INPUT MODE] and [SLEEP] buttons, 

press the [

?/1

] button to turn on the main power. 

2.  All segments turn on.

3.  Turn the [INPUT SELECTOR] dial. 
4.  Test pattern 1 turn on.

5.  Turn the [INPUT SELECTOR] dial once again. 
6.  Test pattern 2 turn on.

7.  Turn the [INPUT SELECTOR] dial once again. All segments 

turn off. 

8.  Every turning of the [INPUT SELECTOR] dial turns on each 

segment one after another on the same order.

S.F.  CLEAR  MODE
The preset sound fi led is cleared when this mode is activated. Use 
this mode before returning the product to clients upon completion 
of repair.
Procedure:
1.  While pressing the [2CH] button, press the [

?/1

] button to turn 

on the main power. 

2.  The message “S.F. CLR.” appears and initialization is per-

formed. 

VERSION  CHECK  MODE
When this mode is used the model, the destination and the software 
version number are displayed.
Procedure:
1.  While pressing the [INPUT MODE] and [DIMMER] buttons, press 

the [

?/1

] button to turn on the main power. 

2.  The model, the distination and the software version number 

appear. 

KEY  CHECK  MODE
This mode is used to check the key.
Procedure:
1.  While pressing the [INPUT MODE] and [MUSIC] buttons, 

press the [

?/1

] button to turn on the main power. 

2.  The message “REST 08” appears.
3.  Every pressing of any button other than the [

?/1

] button counts 

down the buttons. The buttons which are already counted once 
are not counted again.

4.  When all buttons are pressed, the message “REST 00” ap-

pears.

SWAP  ALL MODE
The signal will be swapped to all channels so that all speakers will 
have sound output.
Procedure:
1.  While pressing the [DIMMER] and the [DISPLAY] buttons 

simultaneously, press the power [

?/1

] button to turn on the 

main power.

2.  The message “SWP.ALL” appears.

SHIPMENT  MODE
All preset contents are cleared when this mode is activated.  Use 
this mode before returning the product to clients upon completion 
of repair.
Procedure:
1.  While pressing the [SLEEP] and [DISPLAY] buttons, press the 

[

?/1

] button to turn on the main power. 

2.  The message “CLEARING” appears.

DCAC  FACTORY  TEST  MODE
DCAC Factory Test mode have two stages:
1.  DCAC DSP Data Line Checking 
2.  DCAC board Checking

1.  When power off : 
 

While pressing the [MUSIC] and [DISPLAY] buttons, press 
the [

?/1

] button to turn on the main power .

 

“DCAC  FTM” appears.  

 

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

After press the [DIMMER] 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 

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 [MOVIE] and [DISPLAY] 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 [INPUT MODE] and [MOVIE] buttons, 

press the [

?/1

] button to turn on the main power.

2.  The message “VACS OFF” appears.

STR-KM3000

• SIGNAL PATH

DSP

IC1501

D/A CONVERTER

IC1452

: AUDIO (ANALOG)

: AUDIO (DIGITAL)

X1302

25MHz

12

13

14

R-CH

R-CH

SL

L, C, SW, SL

C

L

SW

• R-ch is omitted due to same as L-ch.

D1503

D1504

D1501

1

OPTICAL

SAT IN

DIGITAL AUDIO

INTERFACE RECEIVER

IC1301

J1301

COAXIAL

DVD/BD IN

DIGITAL

A/D CONVERTER

IC1401

X1301

12.288MHz

94

D1301

X1101

24MHz

A_AUDIO

98 97 95 96

99

100

93

R-CH