DOWNLOAD Sony HT-DDW685 / STR-K685 Service Manual ↓ Size: 4.23 MB | Pages: 52 in PDF or view online for FREE

Model
HT-DDW685 STR-K685
Pages
52
Size
4.23 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ht-ddw685-str-k685.pdf
Date

Sony HT-DDW685 / STR-K685 Service Manual ▷ View online

9
STR-K685
* The number 5, MASTER VOL +, TV VOL +, and 
H buttons have tactile dots. Use the tactile dots as 
references when operating the receiver.
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.
• The VIDEO 3 button on the remote is not available 
for receiver operation.
Name
Function
Q
RETURN/
EXIT 
O
Press to return to the previous 
menu or exit the menu while 
the menu or on-screen guide 
of the VCR, DVD player, or 
satellite tuner is displayed on 
the TV screen.
Press RETURN/EXIT O 
and TV (O) 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.
R
V/v/B/b
After pressing AMP MENU 
(E), DVD MENU (H), or 
MENU (M), 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, Blu-ray 
disc player or DVD player.
S
DISPLAY
Press to select the information 
displayed on the TV screen of 
the VCR, satellite tuner, CD 
player, Blu-ray disc player or 
DVD player. 
Press DISPLAY and TV (O) 
at the same time to select TV 
information displayed on the 
TV screen.
T
-/--
Press -/-- and TV (O) at the 
same time to select the 
channel entry mode, either 
one or two digits of the TV.
>10/
x
Press to select track numbers 
over 10 of the VCR, satellite 
tuner or CD player or to select 
channel numbers of the 
Digital CATV terminal.
CLEAR
Press to clear a mistake when 
you press the incorrect 
numeric buttons.
Name
Function
U
Numeric 
buttons 
(number 5
*
)
Press to preset/tune to preset 
stations or to select track 
numbers of the CD player, 
Blu-ray disc player or DVD 
player or to select channel 
numbers of the VCR or 
satellite tuner. Press 0/10 to 
select track number 10. Press 
the numeric buttons and TV 
(O) at the same time to select 
the TV channels.
V
AUTO CAL
Press to activate the Auto 
Calibration function.
W
TV INPUT
Press TV INPUT and TV (O) 
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.
10
STR-K685
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  DIMMER  and the  AUTO CAL  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  MUSIC  and the  AUTO CAL  buttons
simultaneously, press the power  ?/1  button to turn on the
main power.
“REST 08” 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  SLEEP  and the  AUTO CAL  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   DIMMER  and the  DISPLAY  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  SLEEP  and the  DISPLAY  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  MOVIE  and the  DISPLAY  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  MOVIE  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  MOVIE  and the  AUTO CAL  buttons
simultaneously, press the power  ?/1  button to turn on the
main power.
2. “VACS OFF” appears. (8 second)
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
LFE
SP B
NEO:6
D.RANGE
MONO
COAX
k
m
MHz
RDS
x
MEMORY
C
SL
SR
SB SBR
SBL
SW
CAT
DTS
D
;
;
PL
dB
Hz
ft.
ST
11
STR-K685
DCAC FACTORY TEST MODE
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   MUSIC  +  DISPLAY  +  ?/1  .
“DCAC[]FTM” appears.
Afterward, press the  DIMMER   to start DCAC factory test
mode.
1. DCAC DSP Data Line Checking
After press the  DIMMER  , 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 
→ D1501 or R1530
x = 2 
→ D1502 problem
x = 3 
→ D1503 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)
DSP Data Line
Check
Start
Pass
Pass
Auto Cal Mic
Check
END
SPK Front Left
DCAC MIC
Receiver
12
STR-K685
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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