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Model
HT-1700D HT-5500D HT-DDW740 HT-DDW840 STR-K740P STR-K840P
Pages
43
Size
9.96 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ht-1700d-ht-5500d-ht-ddw740-ht-ddw840-str-k740p-st.pdf
Date

Sony HT-1700D / HT-5500D / HT-DDW740 / HT-DDW840 / STR-K740P / STR-K840P Service Manual ▷ View online

6
STR-K740P/K840P
SECTION 2
TEST MODE
FACTORY PRESET MODE
* All preset contents are reset to the default setting.
* Procedure:
While depressing the  VIDEO 1  and the  2CH  buttons simul-
taneously, press the power  ?/1  button to turn on the main power.
The message “FACTORY” appears and switch off the set.
While depressing the  VIDEO 1  and the  2CH  buttons simul-
taneously, press the power  ?/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  TUNING+ button or the
PRESET+ button, press the power  ?/1  button to turn on the
main power.  Either the message “9 k STEP” or “10 k STEP”
appears.  Select the desired step.
* For US/Canadian/E model only
SPEAKER SIZE SELECTION MODE
*Either Normal Speaker or Micro Satellite Speaker can be selected.
*Procedure:
 While depressing the  LEVEL  button, press the power  ?/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  MD/TAPE  and the  SHIFT  buttons simul-
taneously, press the power  ?/1  button to turn on the main power.
1. All segments turn on.
MULTI CHANNEL DECODING , Digital Cinema Sound ,
A.F.D. , MODE , 2CH and SET UP LED turn on.
2. Press the  VIDEO  button, confirm display.
A.F.D. , MODE , LEVEL , SET UP , and Digital Cinema Sound
LED turn on.
3. Press the  VIDEO  button, confirm display
MULTI CHANNEL DECODING , 2CH , SURR and NAME
LED turn on.
4. Press the  VIDEO  button, All segments turn off.
5. Every pressing of the VIDEO  button turns on each
segment and LED one after another in the same order.
(Not only the  VIDEO  button, but also the other buttons such as
DVD/LD , TV/SAT , MD/TAPE , CD , TUNER and AUX 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  MODE  button, press the power  ?/1  button
to turn on the main power.
The message “SURR. CLR.” appears and initialization is
performed.
DEMONSTRATION MODE
* Demonstration is performed.
* Procedure :
While depressing the  SET UP  button, press the power  ?/1
button. The message appears and demonstration is performed.
* To finish DEMONSTRATION MODE, press the power ?/1
button while the introduction message appears in the display.
SOFTWARE VERSION DISPLAY MODE
* The software version is displayed.
* Procedure:
While depressing the ENTER and the A.F.D buttons
simultaneously, press the power  ?/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 VIDEO 1 and the SHIFT buttons
simultaneously, press the power  ?/1  button to turn on the main
power.
“REST 39” appears. (AEP, UK, model: “RESET 38”)
Every pressing of any button other than  ?/1  and  SPEAKERS
counts down the buttons.  The buttons which are already counted
once are not counted again.  When all buttons are pressed “REST
00” appears.
When MASTER VOLUME is rotated in clockwise direction,
“VOL MIN”, “VOL 1” to “VOL 48”, “VOL MAX” appear.
SW
L
SL
C
R
S
SR
SLEEP
SP.OFF
( ( ( L F E ) ) )
DIGITAL
OPT COAX MULTI CH IN
PRO LOGIC DTS MPEGSTEREO MONO RDS
MEMORY
MUTING
INFO
NEWS
TA
EQ
D.RANGE
D D
dB
kHz
mft.
MHz
SW
L
R
S
SLEEP
 L F E 
COAX
PRO LOGIC
MPEGSTEREO
RDS
MUTING
INFO
TA
D.RANGE
D D
k    
m   
MHz
SL
C
SR
SP.OFF
( ( (       ) ) )
DIGITAL
OPT
MULTI CH IN
DTS
MONO
MEMORY
NEWS
EQ
dB
  Hz
   ft.
7
STR-K740P/K840P
AUTO BETICAL MODE
* This mode is installed in the Europe models only. When this mode
is used, the receiver scans the broadcasts that can be received by
the tuner, and sets up the broadcasts. Be sure to start scanning
after connecting the antenna.
* Procedure:
1. Check that the antenna is connected.
2. Press the  ?/1  button to turn on the power while pressing the
MEMORY button.
3. The message “AUTO-BETICAL SELECT” appears and the
receiver starts scanning.
8
STR-K740P/K840P
SECTION 3
DIAGRAMS
3-1.  Circuit Board Location
VIDEO board 
DIGITAL board 
MAIN board
DISPLAY board
HEADPHONE board
POWER SW board
STANDBY board
AC SELCT board (E model only)
9
9
STR-K740P/K840P
• Waveform
DIGITAL Board
1
 IC1101 wa (XOUT)
 
4.4Vp-p
81ns
 (12.288MHz)
2
 IC1201 9 (MCLK1)
3.3Vp-p
73ns (13.59MHz)
3
 IC1601 id (XI)
2.8Vp-p
5ns (20MHz)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. p : pF. 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
%
: indicates tolerance.
f
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
No mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: CD (ANALOG)
c
: DVD (DIGITAL)
• Abbreviation
CND : Canadian model
MY
: Malaysia model
SP
: Singapore model
AR
: Argentine model
MX
: Mexican model
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
Note:
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side B)
the parts face are indicated.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
a
: Through hole.
f
: internal component.
: Pattern from the side which enables seeing.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
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