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
(Page
9)
3-3. FRONT PANEL BLOCK
(Page
(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
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)
TW, KR, AUS)
(AEP, ECE, UK)
Note: In reassembling, use new clamp to
fasten the clamp same as before.
Ver. 1.1
• Abbreviation
AUS :
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
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).
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.
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.
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.).
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
(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.
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.
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 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
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]
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-
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-
(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-
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.
“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 test mode)
REBOX xx
Ver. 1.4
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