DOWNLOAD Sony STR-DG820 Service Manual ↓ Size: 5.44 MB | Pages: 97 in PDF or view online for FREE

Model
STR-DG820
Pages
97
Size
5.44 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-dg820.pdf
Date

Sony STR-DG820 Service Manual ▷ View online

STR-DG820
9
SECTION  3
DISASSEMBLY
•  This set can be disassembled in the order shown below.
3-1.   DISASSEMBLY  FLOW
Note:  Follow the disassembly procedure in the numerical order given.
3-2.   CASE
3-2. CASE
 (Page 
9)
3-3.  FRONT PANEL BLOCK
 (Page 
10)
3-4. BACK 
PANEL 
BLOCK
 (Page 
10)
3-5. MAIN 
BLOCK
 (Page 
11)
3-6. MAIN 
BOARD
 (Page 
11)
SET
 two screws
 (BVTP3 
× 8)
 case
 two screws
 (BVST4 
× 8 (for BLACK),
 BVTT4 
× 8 (for SILVER))
 two screws
 (BVST4 
× 8 (for BLACK),
 BVTT4 
× 8 (for SILVER))
 double sided tape
(AEP, ECE, UK)
• Abbreviation
  ECE  : Continental European, East European 
   
  and Russian models
STR-DG820
10
3-3.   FRONT  PANEL  BLOCK
3-4.   BACK  PANEL  BLOCK
 six screws
 (BVTP3 
× 8)
 connector
 (CN1)
R front panel block
 claw
 claw
 two connectors
 (CN7006, 
CN7007)
 two connectors
 (CN721, 
CN725)
 screw
 (BVTP3 
× 8)
 screw
 (BVTP3 
× 8)
 Cut the clamp.
Note: In reassembling, use new clamp to
 
 
fasten the clamp same as before.
RH Cut the clamp.
 connector
 (CN3507)
"
&
&
"
#
#
$
%
$
%
 two connectors
 (CN3003, 
CN3504)
 Cut the clamp.
RL connector
 (CN913)
XB connector
 (CNP905)
RM five connectors
 (CN910, 
CN911,
 
CN912, CN914, CN915)
X two connectors
 (CNP285, 
CNP286)
XG two connectors
 (CN102, 
CNP103)
XT two connectors
 (CNP203, 
CNP240)
XE connector
 (CN7005)
XH connector
 (CN2208)
RK two connectors
 (CN2222, 
CN2223)
RI
 HDMI bracket
 HDMI bracket
R HDMI board
 two screws
 (BVTP3 
× 8)
RT screw
 (BVTP3 
× 8
 
(except AEP, ECE, UK),
 BV3 
× 8 CU
 
(AEP, ECE, UK))
RB three screws
 (BVTP3 
× 8)
RE screw
 (BVTP3 
× 8)
RG screw
 (BVTP3 
× 8)
RB eight screws
 (BVTP3 
× 8)
 two screws
 (BVTP3 
× 8)
 screw
 (BVTP3 
× 8)
 screw
 (BVTP3 
× 8)
 five screws
 (BVTT3 
× 6)
XI back panel block
(AEP, ECE, UK)
(E51)
(US, CND)
(US, CND, E51,
TW, KR, AUS)
(AEP, ECE, UK)
Note: In reassembling, use new clamp to
 
 
fasten the clamp same as before.
Ver. 1.1
• Abbreviation
 AUS : 
Australian 
model
 CND : 
Canadian 
model
  E51 
: Chilean and Peruvian models
  ECE  : Continental European, East European 
   
  and Russian models
  KR 
: Korean model
 TW  : 
Taiwan 
model
STR-DG820
11
3-5.   MAIN  BLOCK
3-6.   MAIN  BOARD
Note:  This illustration sees the MAIN board from back side.
 two connectors
 (CNP432, 
CNP500)
 lead wire
 two connectors
 (CNP920, 
CNP940)
 two screws
 (BV3)
 main block
 three screws
 (BV3)
 MAIN board
 two screws
 (BVTP3 
× 8)
 heatsink block
 Remove the
 forty-two 
solders.
STR-DG820
12
SECTION  4
TEST  MODE
DIGITAL  MEDIA  PORT  TEST
Procedure:
1.  Connect the DMPORT check jig (P/N: J-2501-309-A) with the 
DMPORT jack (CN2226) on the DIGITAL AUDIO board.
2.  While pressing the [MEMORY/ENTER] and [A.F.D.] buttons, 
press the [POWER] button to turn on the main power.
3.  The message “DMPORT T.” appears on the fl uorescent indica-
tor tube and enter the digital media port test mode (Confi rma-
tion of communication line).
 
When “NO DETECT”, “UART NG” and “UART TO” are dis-
played on the fl uorescent indicator tube, confi rm the connec-
tion of the DMPORT check jig, and enter the mode again.
  Each time the [
>] button on the remote commander is 
pressed, the connect check and adaptor version check are 
switched.
 
Press the [
.] button on the remote commander, connected 
confi rmation of the DMPORT check jig is done again.
4.  To a pin-jack of the DMPORT check jig input information 
relevant to audio signal (sine-wave 1.0 Vrms) and composite 
video signal (white 100% 1.0 Vp-p, color bar, etc.).
5. Confi rm the output of speakers and monitor TV (Confi rmation 
of analog signal).
6.  To release from this mode, press the [
x] button on the remote 
commander. 
 
XM  FACTORY  TEST  MODE 
(US and Canadian models only)
Mode to confi rm operation of XM. Doing display of ID of XM 
antenna and output of audio signal that XM antenna generates, it is 
confi rmed that there are no problems in the communication of the 
XM antenna and the transmission of the audio signal.
Procedure:
1.  The XM antenna was connected, while pressing the [TUNING 
MODE] and [MOVIE] buttons, press the [POWER] button to 
turn on the main power.
2.  Whenever the [DISPLAY] button is pressed, the output of the 
audio signal of 1 kHz L/R, 20 Hz L/R, 5 kHz L/R, muting, 1 
kHz L and 1 kHz R are switched.
COMMAND  MODE  CHANGE  MODE
The command mode of the remote-commander which this set re-
ceives can be changed.
Procedure:
1.  While pressing the [SPEAKERS] and [MOVIE] buttons, press 
the [POWER] button to turn on the main power.
2.  Either the message “C.MODE AV1” or “C.MODE AV2” ap-
pears. Select the desired mode.
FLUORESCENT  INDICATOR  TUBE  PATTERN  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.  While pressing the [TONE MODE] and [A.F.D.] buttons, press the 
[POWER] button to turn on the main power.
2.  All segments turn on.
MEMORY  CLEARING  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 [TONE MODE] and [2CH/A.DIRECT] 
buttons, press the [POWER] button to turn on the main power.
2.  The message “CLEARING” appears and the memories are re-
set to the default values.
3.  When done, the message “CLEARED” appears.
SOUND  FIELD  CLEAR  MODE
The preset sound fi eld 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 [MUSIC] button, press the [POWER] but-
ton to turn on the main power.
2.  The message “S. F. CLEAR” appears and initialization is per-
formed.
TUNER  AM  STEP  CHANGE  MODE 
(US, Canadian, Chilean, Peruvian, Korean, Taiwan and 
Australian models only)
Either the 9 kHz step or 10 kHz step can be selected for the AM 
channel step.
Procedure:
1.  Press the [POWER] button to turn on the main power.
2.  Turn the [INPUT SELECTOR] dial to select the “AM TUNER”.
3.  Press the [POWER] button to turn off the main power.
4.  While pressing the [TUNING MODE] button, press the [POW-
ER] button to turn on the main power.
5.  Either the message “AM9k Step” or “AM10k Step” appears, se-
lect the desired step.
HISTORY  MODE
The state that the set is used is memorized.
Procedure:
1.  While pressing the [MEMORY/ENTER] and [MUSIC] but-
tons, press the [POWER] button to turn on the power and 
“HISTORY” is displayed.
2. Each time the [
M] [m] key of remote commander is pressed, 
the item is switched in order as follows.
color
pattern
generator
DMPORT
check jig
(Part No.:
J-2501-309-A)
J001
AF
oscillator
set
TV
monitor
FL/FR
speaker
DIGITAL AUDIO board
CN2226
MAIN board
TB601
VIDEO board
J210
Items
Display
Protector count
COUNT  XX
Total single power on time
S xxHxxM
Sound fi eld
xxxxxxxxxx
Input function
xxxxxxxxxx
Input mode
xxxxxxxxxx
Digital select
xxxxxxxxxx
Stream information
xxxxxxxxxx
Signal confi guration
CONF xxxxx
Headphones
HEADPH xxx
Volume
VOL  xxx
Bass
BASS  xxdB
Treble
TREB  xxdB
Level FL/FR
FL/R xx xx
Level SL/SR
SL/R xx xx
Level CT/SW
C/SW xx xx
Level BL/BR
BL/R xx xx
Total power on time
T   xxHxxM
Muting
MUTING xxx
Power on counter 
(Rebox test mode)
REBOX   xx
Ver. 1.4
Page of 97
Display

Click on the first or last page to see other STR-DG820 service manuals if exist.