Sony STR-DH520 Service Manual ▷ View online
STR-DH520
9
SECTION 2
TEST MODE
AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE
(US, Canadian model only)
* Either the 9 kHz step or 10 kHz step can be selected for the AM
(US, Canadian model only)
* Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
* Procedure:
Turn the [INPUT SELECTOR] control to set AM and press the
[
[
?/1
] button to turn off the main power.
1. While depressing the [TUNING MODE] button, press the
[
?/1
] button to turn on the main power.
2. Either the message “9K STEP” or “10K STEP” appears for a
moment and select the desired step.
VACUUM FLUORESCENT DISPLAY TEST MODE
* All fluorescent segments are tested.
When this test is activated, all segments light on at the same time,
then each segment lights on one after another.
then each segment lights on one after another.
* Procedure:
While depressing the [TUNING +] and the [DIMMER] buttons
simultaneously, press the [
simultaneously, press the [
?/1
] button to turn on the main power.
1. ALL segments light on.
L
C
R
SL
S
SR
SBL SB SBR
LH
RH
SW
COAX
OPT
HDMI
LFE
DTS -ES
NEO:6 S-AIR
96/24
DTS-HD MSTR HI RES
LBR
LPCM
RDS
AAC
TrueHD
SLEEP
D.RANGE
ST
D
PL II
+ EX
MHz
ft.
k Hz m
x z
dB
2. Press the [DISPLAY] button, confirm display.
L
C
R
SL
S
SR
SBL
SB
SBR
LH
RH
SW
COAX
OPT
HDMI
LFE
DTS -ES
NEO:6 S-AIR
96/24
DTS-HD MSTR HI RES
LBR
LPCM
AAC
TrueHD
SLEEP
D.RANGE
PL
+
ft.
k
m
z
dB
3. Press the [DISPLAY] button, confirm display.
L
R
S
SBL
SBR
LH
RH
SW
COAX
OPT
HDMI
LFE
DTS -ES
NEO:6 S-AIR
96/24
DTS-HD MSTR HI RES
LBR
LPCM
RDS
TrueHD
SLEEP
D.RANGE
ST
D
PL II
EX
MHz
Hz
x
4. Press the [DISPLAY] button, all segments light off.
SOUND FIELD CLEAR MODE
* The preset sound field is cleared when this mode is activated.
* The preset sound field is cleared when this mode is activated.
Use this mode before returning the product to clients upon com-
pletion of repair.
pletion of repair.
* Procedure:
1. While depressing the [MUSIC] button, press the [
1. While depressing the [MUSIC] button, press the [
?/1
] button
to turn on the main power.
2. The message “S.F. CLEAR” appears for a moment and initial-
ization is performed.
SOFTWARE VERSION CHECK MODE
* The software version is displayed.
* Procedure:
1. While depressing the [TUNING MODE] and the [DISPLAY]
* The software version is displayed.
* Procedure:
1. While depressing the [TUNING MODE] and the [DISPLAY]
buttons simultaneously, press the [
?/1
] button to turn on the
main power.
2. The message “H5**MX.XX” appears.
**: Destination
3. Each time the [DISPLAY] button is pressed, “H.VER X.XX”
and “S.VER X.XX” appear in this order and return to the
“H5**MX.XX” display.
“H5**MX.XX” display.
KEY CHECK MODE
* Button check
* Procedure:
1. While depressing the [TUNING +] and the [MUTING] but-
* Button check
* Procedure:
1. While depressing the [TUNING +] and the [MUTING] but-
tons simultaneously, press the [
?/1
] button to turn on the main
power.
2. The message “REST 12” appears.
3. Every pressing of any button other than the [
3. Every pressing of any button other than the [
?/1
] counts down
the buttons. The buttons which are already counted once are
not counted again. When all buttons are pressed “REST 00”
appears.
not counted again. When all buttons are pressed “REST 00”
appears.
SWAP ALL MODE
* The signal will be swap to all channel so that all speaker will
* The signal will be swap to all channel so that all speaker will
have sound output.
* Procedure:
1. While depressing the [TUNING MODE] and the [MOVIE/
1. While depressing the [TUNING MODE] and the [MOVIE/
HD-D.C.S.] buttons simultaneously, press the power [
?/1
]
button to turn on the main power.
2. “SWAP.MODE” appears. (No change while displayed.)
PROTECTOR AUTO OFF
* To disable auto off after protector occur.
* Procedure:
* To disable auto off after protector occur.
* Procedure:
1. While depressing the [INPUT MODE] and the [A.F.D.] but-
tons simultaneously, press the power [
?/1
] button to turn on
the main power.
2. “PROT OFF” appears.
DCAC TEST MODE
Procedure:
1. While pressing [INPUT MODE] and the [MOVIE/HD-D.C.S.]
Procedure:
1. While pressing [INPUT MODE] and the [MOVIE/HD-D.C.S.]
buttons, press the [
?/1
] button to turn on the main power.
2. The message “SOURCE” or “MIC” appears.
Repeat step 1 to toggle between “SOURCE” and “MIC”.
SOURCE: normal mode
MIC: mode that output audio from mic input.
INITIALIZE MODE
All preset contents are cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
(a) SHIPMENT MODE
* Procedure:
1. While pressing the [TUNING MODE] and [DIMMER] but-
All preset contents are cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
(a) SHIPMENT MODE
* Procedure:
1. While pressing the [TUNING MODE] and [DIMMER] but-
tons, press the [
?
/
1
] button to turn on the main power.
2. The message “CLEARING” appears and the memories are
reset to the default values.
3. When done, the message “CLEARED” appears, the set will
power off.
(b) ALL CLEAR INITIALIZE
* Procedure:
1. While pressing the [TUNING MODE] and [MUTING] but-
* Procedure:
1. While pressing the [TUNING MODE] and [MUTING] but-
tons, press the [
?
/
1
] button to turn on the main power.
2. The message “CLEARING” appears and the memories are
reset to the default values.
3. When done, the message “CLEARED” appears, the set will
power on.
(c) USER INITIALIZE
* Procedure:
1. Hold the [
* Procedure:
1. Hold the [
?
/
1
] button for 5 seconds.
2. The message “CLEARING” appears on the display.
3. After few seconds, “CLEARED” appears.
3. After few seconds, “CLEARED” appears.
STR-DH520
10
SPDIF UPDATE MODE
User plays the CD that contains u-com/DSP data with CD/DVD
player.
Update u-com/DSP etc. fi rmware from SPDIF input.
Connection:
CD/DVD
player
DIGITAL board
BD/DVD COAXIAL IN jack (J2301)
BD/DVD COAXIAL IN jack (J2301)
set
* Procedure:
Normal case
Normal case
1. While pressing [INPUT MODE] and [MUTING] button,
press the [?/1] button to turn on the main power.
2. The messages “UPDATE” and “PLAY. DISC” are displayed
alternately every one second.
After this step, all user operation is prohibited except power
off. To cancel this mode, power off or AC power cord pull out
is required.
After this step, all user operation is prohibited except power
off. To cancel this mode, power off or AC power cord pull out
is required.
3. Connect CD player to BD/DVD COAXIAL IN jack (J2301
on DIGITAL board), and play update CD.
Update is started when DSP detect update signal. The
message “UPDATING” is displayed blinks every one second.
From this step, all user operation is prohibited. Power off is
also prohibited.
Update is started when DSP detect update signal. The
message “UPDATING” is displayed blinks every one second.
From this step, all user operation is prohibited. Power off is
also prohibited.
4. While main u-com is being updated, fl uorescent indicator tube
is blacked out for few minutes.
5. When update data error is detected or disc is not matched with
target model, error messages “DISC ERR” and “PLAY. DISC”
are displayed to restart playing valid CD.
When fl ash writing error is happened, error messages “UPT.
ERR” and “PLAY. DISC” are displayed to restart playing CD.
are displayed to restart playing valid CD.
When fl ash writing error is happened, error messages “UPT.
ERR” and “PLAY. DISC” are displayed to restart playing CD.
6. When all update is fi nished, set is reboot automatically.
After reboot, complete message “COMPLETE” is displayed
(displayed continuously until any user operation).
(displayed continuously until any user operation).
* Procedure:
After update is abnormal exit, and set is power on again
After update is abnormal exit, and set is power on again
1. Enter update mode automatically after power on.
2. The messages “UPDATE” and “PLAY. DISC” are displayed
2. The messages “UPDATE” and “PLAY. DISC” are displayed
alternately every one second.
From this step, all user operation is prohibited. Power off is
also prohibited.
If main u-com was failed to update, nothing is displayed.
From this step, all user operation is prohibited. Power off is
also prohibited.
If main u-com was failed to update, nothing is displayed.
3. Connect CD player to BD/DVD COAXIAL IN jack (J2301
on DIGITAL board), and play update CD.
Update is started when DSP detect update signal. From this,
same as normal case.
Update is started when DSP detect update signal. From this,
same as normal case.
SPDIF UPDATE VERSION
Function that displays the version number to check whether
SPDIF update is necessary or not.
* Procedure:
1. While pressing [INPUT MODE] and [DISPLAY] button,
press the [?/1] button to turn on the main power.
2. The message “VER X.XXX” is displayed. “X.XXX” is
calculated by adding all fi rmware version.
Example:
(MAIN ver. + DSP ver. + HDMI ver. + 7)/10 =
Displayed version
MAIN = 1.02, DSP = 1.01, HDMI = 1.00
↓
(1.02 + 1.01 + 1.00 + 1.03 + 7)/10 = 1.006
1.006 = X.XXX
Example:
(MAIN ver. + DSP ver. + HDMI ver. + 7)/10 =
Displayed version
MAIN = 1.02, DSP = 1.01, HDMI = 1.00
↓
(1.02 + 1.01 + 1.00 + 1.03 + 7)/10 = 1.006
1.006 = X.XXX
SPDIF UPDATE TEST
Function that checks hardware error for SPDIF update.
This test takes about 15 seconds.
* Procedure:
1. While pressing [INPUT MODE] and [DIMMER] buttons,
press the [?/1] button to turn on the main power.
2. The message “TESTING” is displayed.
3. When abnormality is not found, the message “COMPLETE”
3. When abnormality is not found, the message “COMPLETE”
will display.
4. Communication error between others devices micro-controller
and DSP, the messages “UART” and “ERROR” are displayed.
Communication error between HDMI microcomputer and
DSP, the messages “HDMI” and “ERROR” are displayed.
Communication error between MAIN MICOM and DSP, the
messages “VIDEO” and “ERROR” are displayed.
Unknown error, the messages “UNKNOWN” and “ERROR”
are displayed.
Communication error between HDMI microcomputer and
DSP, the messages “HDMI” and “ERROR” are displayed.
Communication error between MAIN MICOM and DSP, the
messages “VIDEO” and “ERROR” are displayed.
Unknown error, the messages “UNKNOWN” and “ERROR”
are displayed.
5. To release from this mode, AC power cord pull out.
HISTORY MODE
* The state that the set is used is memorized.
* Procedure:
1. While depressing the [INPUT MODE] and the [MUSIC]
* The state that the set is used is memorized.
* Procedure:
1. While depressing the [INPUT MODE] and the [MUSIC]
buttons simultaneously, press the [
?/1
] button to turn on the
main power.
2. “HISTORY”
appears.
3. Each time the [↑] / [↓] buttons on the remote commander is
pressed, the item is switched in order as follows.
Items
Display
Protector Count
COUNT XX
Total Single Power On Time
XXXXXHXX01
Sound Field
SND FLD
Input Function
FUNCTION
Input Mode
INP MODE
Digital Select
DIG IN
Stream Information
STREAM
Signal Confi guration
CO XXXXX
Headphone
HP XXX
Volume
VOL XX
Bass
BASS XXX
Treble
TREB XXX
Level FL/FR
F XXXXXX
Level SL/SR
S XXXXXX
Level CT/SW
CWXXXXXX
Level BL/BR
B XXXXXX
Level LH/RH
H XXXXXX
Total Power ON Time
XXXXXHXX02
Muting
MUTE XXX
Power ON Counter
(Rebox Test Mode)
(Rebox Test Mode)
REBX.XXXX
Protector Type
PROTXXXX
Temperature Record
TEM XXXX
STR-DH520
11
11
SECTION 4
DIAGRAMS
• Circuit Boards Location
FM AUTO STOP CHECK
generator
OUT (75
Ω)
set
Procedure:
1. Turn on the set.
2. Input the following signal from Signal Generator to FM
1. Turn on the set.
2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Frequency: A=87.5 MHz, B=98 MHz, C=108 MHz
Deviation
Deviation
: 75 kHz
Modulation : 1 kHz
ANT input
ANT input
: 35 dBu (EMF)
Note:
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. Confi rm 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.”
received in good condition.”
SECTION 3
FM TUNER CHECK
DISPLAY board
HEADPHONE board
POWER KEY board
MAIN board
STANDBY-A VIDEO MT PC board
DCDC board
HDMI RE PC board
TUNER (FM/AM)
DIGITAL board
TEMP-SENSOR board
STR-DH520
STR-DH520
12
12
4-1. BLOCK DIAGRAM – TUNER/AUDIO Section –
C-CH
SR-CH
FR-CH
SL-CH
FL-CH
R-IN
L-IN
SW
SEL
C
SEL
SB
SEL
SL
SEL
R-CH
R-CH
R-CH
DIR
FUNCTION SELECT
IC400
VCC
VEE
+7V
SEL
SW
MCU
I/F
-7V
SW OUT
SBL
SBR
C OUT
SL OUT
FL OUT
8
21
23
SYSTEM
CONTROL
IC2105 (1/5)
TUNER_LAT
9 TUNER_MOSI
10 TUNER_CLK
EVOL_DATA
EVOL_CLK
TUNER_SD
TUNER_MISO
11 TUNER_RDS_CLK
22 TUNER_RDSDATA
97
96
96
57
58
58
12
8
10
11
11
60
59
59
75
14
13
18
17
SBR-CH
R-CH
19
SW-CH
16
71
66
70
68
69
SR OUT
FR OUT
72
73
67
48
47
47
56
55
55
52
51
42
41
46
45
51
42
41
46
45
SBL-CH
20
15
76
25
26
L
SEL
5
1
DCAC AMP
IC500
AM
TN1
FM/AM TUNER UNIT
L-CH
US, CND
UK, TW, AUS, ECE
SD
CE
DO
DI
CLK
TU+9V
FM 75ȍ
COAXIAL
ANTENNA
R-CH
AM
TN1
FM/AM TUNER UNIT
L-CH
SD
CE
DO
DI
CLK
TU+9V
FM 75ȍ
COAXIAL
ANTENNA
R-CH
RDS INT
RDS DATA
J401 (1/2)
J409
J407
-1
-2
-4
-5
-4
-5
-7
-8
PORTABLE IN
(MINI JACK)
J406
AUTO CAL MIC
J401 (2/2)
-1
-2
SA-CD/CD
AUDIO IN
L
R
TV
AUDIO IN
L
R
L
R
VIDEO
AUDIO IN
L
R
SAT/CATV
AUDIO IN
L
R
VIDEO
AUDIO OUT
UK, TW, AUS, ECE
6LJQDOSDWK
: TUNER (FM/AM)
: VIDEO (AUDIO)
: CD (ANALOG)
: TUNER
5FKLVRPLWWHGGXHWR
: VIDEO (AUDIO)
: CD (ANALOG)
: TUNER
5FKLVRPLWWHGGXHWR
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DIGITAL
SECTION
(Page 13)
(Page 13)
DIGITAL
SECTION
(Page 13)
(Page 13)
POWER KEY
SECTION
(Page 17)
(Page 17)
A
B
C
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