Sony STR-K850P - Fm Stereo/fm-am Receiver, Service Manual

6

STR-K850P

SECTION 2

TEST MODE

FACTORY PRESET MODE

* All preset contents are reset to the default setting.
* Procedure:

While depressing the  FM MODE  and the  PRESET TUNING

−

buttons simultaneously, press the   

?/1

  button again. The message

“FACTORY” appears and the present contents are reset to the
default values.

AM CHANNEL STEP 9 KHZ/10 KHZ
SELECTION MODE

* Either the 9 kHz step or 10 kHz step can be selected for the AM

channel step.

* Procedure:

Set the FUNCTION to AM.  Turn off the main power.
While depressing the   button or the
PRESET   button, press the   

?/1

  button to turn on

the main power.  Either the message “9 k STEP” or “10 k STEP”
appears.  Select the desired step.

SPEAKER SIZE SELECTION MODE

*Either Normal Speaker or Micro Satellite Speaker can be selected.
*Procedure:
 While depressing the  MAIN MENU  button, press the   

?/1

  button

to turn the main power.
Either the message “NORM. SP.” or “MICRO SP.” is displayed.
Select the desired speaker size.

FLUORESCENT INDICATOR TUBE TEST MODE

* All fluorescent 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:

While depressing the  FM MODE  and the MD/TAPE  buttons
simultaneously, press the   

?/1

  button to turn on the main power.

1. All segments turn on.

2CH  ,  A. F. D  ,  MOVIE  ,  MUSIC   and  MULTI CHANNEL
DECODING  LED turn on.

2. Press the  VIDEO 1  button, confirm display.

2CH  and  MOVIE   LED turn on.

3. Press the  VIDEO 1  button, confirm display

A. F. D  ,  MUSIC  and  MULTI CHANNEL DECODING  LED
turn on.

SW

L

SL

C

R

SSB SR

SLEEP

 L F E

DIGITALEX

OPT

COAX MULTI CH IN 12

PROLOGIC II DTS-ES NEO : 6

SPB

SPA

SP

MPEG-2 AAC

STEREO MONO RDS

MEMORY

EQ

D.RANGE

D D

D D

dB

kHz

mft.

MHz

4. Press the  VIDEO1  button, All segments and all LEDS turn off.

5. Every pressing of the VIDEO1  button turns on each segment

and LED one after another in the same order.
(Not only the  VIDEO1  button, but also the other buttons such
as VIDEO2 , DVD , MD/TAPE , CD  and TUNER FM/AM can
be used.)

SOUND FIELD CLEAR MODE

* The preset sound field is cleared when this mode is activated.

Use this mode before returning the product to clients upon
completion of repair.

* Procedure:

While depressing the  2CH  button, press the  

 ?/1

  button to turn

on the main power.
The message “SF. CLR.” appears and initialization is performed.

SOFTWARE VERSION DISPLAY MODE

* The software version is displayed.
* Procedure:

While depressing the FM MODE and the DVD buttons
simultaneously, press the   

?/1

  button to turn on the main power.

The model name, destination and the software version are
displayed.

KEY CHECK MODE

* Button check
* Procedure:

While depressing the MUSIC and the TUNING

−

  buttons

simultaneously, press the power  

?/1

  button to turn on the main

power.
“REST 25” appears.
Every pressing of any button other than  

?/1

   counts down the

buttons.  The buttons which are already counted once are not
counted again.  When all buttons are pressed “REST 00” appears.

COMMAND MODE SELECTION MODE

* The command mode (AV1 or AV2) of the remote commander can

be selected.

* Procedure:
1. While depressing the  ENTER  button, press the  

?/1

  button to

turn on the main power.

2. The message “C.MODE.AV 1” or “C.MODE.AV 2” appears

for a moment. Select the desired mode.

SW

C

SSB

SLEEP

 L F E

DIGITAL

OPT

MULTI CH IN   2

PROLOGIC DTS

SP

MPEG

AAC

STEREO

RDS

D D

D D

MHz

k
m

L

SL

R

SR

EX

COAX

1

 II

-ES NEO : 6

SPB

SPA

-2

MONO

MEMORY

EQ

D.RANGE

dB

Hz

ft.