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Model
STR-K885
Pages
60
Size
4.06 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-k885.pdf
Date

Sony STR-K885 Service Manual ▷ View online

9
STR-K885
a)
The number 5, MASTER VOL +, TV VOL + and 
H buttons have tactile dots. Use the tactile dots 
as references when operating the receiver.
b)
(RM-AAU015 only)
 
This button is also available for DIGITAL 
MEDIA PORT adapter operation. For details on 
the function of the button, see the operating 
instructions supplied with the DIGITAL MEDIA 
PORT adapter.
Notes
  Some functions explained in this section may not 
work depending on the model.
  The above explanation is intended to serve as an 
example only. Therefore, depending on the 
component, the above operation may not be 
possible or may operate differently than described.
Name
Function
O
RETURN/
 
EXIT 
O
Press to
– return  to  the previous menu.
– exit  the  menu while the 
menu or on-screen guide of 
the VCR, DVD player, 
satellite tuner, or Blu-ray 
disc player is displayed on 
the TV screen.
Press RETURN/EXIT O 
and TV (M) at the same time 
to return to the previous menu 
or exit the TV’s menu while 
the menu is displayed on the 
TV screen.
P
 
 
V/v/B/b
After pressing AMP MENU 
(E), DVD MENU (H) or 
MENU (N), press V, v, B or 
b to select the settings. Then, 
press 
 to enter the selection 
for DVD MENU or MENU. 
Press 
 
also to enter the 
selection of the receiver, 
VCR, satellite tuner, CD 
player, DVD player, or Blu-
ray disc player.
Q
DISPLAY
Press to select information 
displayed on the TV screen of 
the VCR, satellite tuner, CD 
player, DVD player, or Blu-
ray disc player.
Press DISPLAY and TV (M) 
at the same time to display 
TV’s information on the TV 
screen.
R
TOOLS
Press to display options 
applicable to the entire disc 
(e.g. disc protection), recorder 
(e.g. audio settings during 
recording), or multiple items 
on a list menu (e.g. erasing 
multiple titles).
Press TOOLS and TV (M) at 
the same time to display 
options applicable to the TV.
S
>10/
x
Press to select
– track numbers over 10 of the 
VCR, satellite tuner, or CD 
player.
– channel numbers of the 
Digital CATV terminal.
-/--
Press -/-- and TV (M) at the 
same time to select the 
channel entry mode, either 
one or two digits of the TV.
,
Name
Function
CLEAR
Press to clear a mistake when 
you press the incorrect 
numeric button.
T
Numeric 
buttons 
(number 5
a)
)
Press to 
– preset/tune to preset 
stations. 
– select track numbers of the 
CD player, DVD player, or 
Blu-ray disc player. Press 0/
10 to select track number 10.
– select channel numbers of 
the VCR or satellite tuner.
Press the numeric buttons and 
TV (M) at the same time to 
select the TV channels.
U
TV INPUT
Press TV INPUT and TV (M) 
at the same time to select the 
input signal (TV input or 
video input).
SLEEP
Press to activate the Sleep 
Timer function and the 
duration which the receiver 
turns off automatically.
V
AUTO CAL 
(RM-AAU013 
only)
Press to activate the Auto 
Calibration function (page 
30).
10
STR-K885
DSP Data Line
Check
Start
Pass
Pass
Auto Cal Mic
Check
END
SECTION 2
TEST MODE
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:
1. While depressing the  2CH  button, press the power  ?/1
button to turn on the main power.
2. The message “S.F. CLR.” appears and initialization is
performed. (3 second)
SOFTWARE VERSION DISPLAY MODE
The software version is displayed.
Procedure:
1. While depressing the  AUTO CAL  and the  DISPLAY  buttons
simultaneously, press the power  ?/1  button to turn on the
main power.
2. The model name, destination and the software version are
displayed. (8 second)
KEY CHECK MODE
Button check
Procedure:
1. While depressing the  AUTO CAL  and the  2CH  buttons
simultaneously, press the power   ?/1  button to turn on the
main power.
“REST 13” appears.
2. Every pressing of any button other than  ?/1  counts down
the buttons.  The buttons which are already counted once are
not counted again.
3. When all buttons are pressed “REST 00” appears.
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:
1. While depressing the  TUNING MODE  and the  DISPLAY
buttons simultaneously, press the power  ?/1  button to turn
on the main power.
2. All segments turn on.
3. Turn the  INPUT SELECTOR  dial.
4. Turn the  INPUT SELECTOR  dial once again.
5. Turn the  INPUT SELECTOR  dial once again. All segments
turn off.
6. Every turning of the  INPUT SELECTOR  dial turns on each
segment one after another in the same order.
SWAP ALL MODE
The signal will be swapped to all channels so that all speakers will
have sound output.
Procedure:
1. While depressing the   AUTO CAL  and the  A.F.D.  buttons
simultaneously, press the power  ?/1  button to turn on the
main power.
2. “SWP. ALL” appears. (No change while displayed.)
SHIPMENT MODE
All preset contents are reset to the default setting.
Procedure:
1. While depressing the  AUTO CAL  and the  MUSIC  buttons
simultaneously, press the power  ?/1  button to turn on the
main power.
2. “CLEARED” appears and switch off the set.
PROTECTOR
If an error occurs, the “Protector Display” will flash for a while and
the power is turned OFF.
Procedure:
1. While depressing the  TUNING MODE  and the  A.F.D.
buttons simultaneously, press the power  ?/1  button to turn
on the main power.
2. “PROT. EVER” appears (3 seconds) and the display returns
to the “Protector Display” and the power remains ON.
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:
1. Set the FUNCTION to AM.  Turn off the main power.
2. While depressing the  TUNING MODE  button, press the
power  ?/1  button to turn on the main power.
3. Either the message “9 k STEP” or “10 kSTEP” appears.  Select
the desired step.
VACS CONTROL
The VACS feature of the amplifier is turned off purposely.
Procedure:
1. While depressing the  MEMORY/ENTER  and the  2CH
buttons simultaneously, press the power  ?/1  button to turn
on the main power.
2. “VACS OFF” appears. (8 second)
DCAC FACTORY TEST MODE
DCAC Factory Test mode have two stages:
1. DCAC DSP Data Line Checking
2. DCAC board Checking
MEMORY
L
C
R
SL
S
SR
SB SBR
SBL
SW
LFE
SP A
SP B
CAT
NEO:6
SAT
D.RANGE
RDS ST
MONO
DTS-ES
96 / 24
HDMI
COAX
D EX
;
OPT
;
PL II x
;
PL
dB
k Hz
mft.
MHz
L
R
S
LFE
SP B
NEO:6
D.RANGE
MONO
COAX
k
m
MHz
RDS
x
-ES
EX
HDMI
SAT
MEMORY
CAT
-ES
OPT
EX
SPA
LFE
dB
Hz
ft.
ST
MONO
SAT
96/24
NEO:6
HDMI
SPB
COAX
D.RANGE
COPKllx
11
STR-K885
Factory Test System Setup
1. When power off :
Press the three buttons   MEMORY/ENTER  +  MOVIE  +
?/1  .
“DCAC[]FTM” appears.
Afterward, press the  TUNING MODE   to start DCAC factory
test mode.
1. DCAC DSP Data Line Checking
After press the  TUNING MODE  , 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 or C1512 problem
x = 2 
→ D1502 problem
x = 3 
→ D1503 problem
x = 4 
→ D1504 problem
2. DCAC board Checking
Connect front left speaker of the receiver and AUTO CAL
microphone. 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)
SPK Front Left
DCAC MIC
Receiver
12
STR-K885
SECTION  3
ELECTRICAL ADJUSTMENT
[FM Auto Stop Check]
Procedure:
1. Turn the power on.
2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
: 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
Note:
Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confirm that input Frequency of A, B and C are detected and
automatic scanning stops.
The stop of automatic scanning means “The station signal is received
in good condition.”
TUNER SECTION
generator
OUT (75 
)
SET
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