Sony STR-DE845 / STR-DE945 Service Manual ▷ View online
9
SECTION 3
TEST MODE
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
all segments turn on at the same time, then each segment turns on
one after another.
Procedure:
1. While depressing, the
[A.F.D]
and the
[DIMMER]
buttons si-
multaneously, press the power
`/1
button to turn on the main
power.
2. All segments turn on at the same time, then each segment turns
on press the
[A.F.D]
button.
Factory Set Mode
All preset contents are reset to the default setting.
Procedure:
1. While depressing the
Procedure:
1. While depressing the
[SET UP]
, and the
[DIMMER]
buttons
simultaneously, press the power
`/1
button to turn on the
main power. The message Factry Set appears and the present
contents are reset to the default values.
contents are reset to the default values.
All Clear 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 depressing the
this mode before returning the product to clients upon completion
of repair.
Procedure:
1. While depressing the
[SET UP]
button simultaneously, press
the power
`/1
button to turn on the main power. The ma-
chine enters the DEMO mode.
DEMO mode: Wait a while, then the demonstration starts. If
the power
DEMO mode: Wait a while, then the demonstration starts. If
the power
`/1
button is pressed often the demonstration has
started, the power is turned off, and the demonstration resumes
if the power
if the power
`/1
button is pressed again.
ALL CLEAR mode; Press the
[A.F.D]
,
[SOUND FIELD MODE
+ ]
, and
`/1
buttons.
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
this mode before returning the product to clients upon completion
of repair.
Procedure:
1. While depressing the
[SOUND FIELD MODE + ]
button, press
the power
`/1
button to turn on the main power. The mes-
sage S.F Initialize appears and initialization is performed.
AM Channel Step 9 kHz/10 kHz
Selection Mode (US, Canadian, and E Models)
Selection Mode (US, Canadian, and E Models)
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
channel step.
Procedure:
1. Set the FUNCTION to AM. Turn off the main power.
2. While depressing the
[TUNING+]
button or the
[PRESET
TUNING +]
button, press the power
`/1
button to turn on the
main power.
3. Either the message AM 9kHz Step or AM 10kHz Step appears.
Select the desired step.
DSP Test Mode
It tests whether the DSP works correctly or not. When the DSP
test is activated, the test data is output from the DSP (IC1401:
CXD2712R) of the DIGITAL board and is written in the RAM
(IC1402: IDT71V016S). When the test data is read from the RAM
by the DSP, the data output must be equivalent to the original data.
If they disagree, an error is triggered. Errors can be caused by the
broken data line or defective soldering.
Procedure:
1. While pressing the
test is activated, the test data is output from the DSP (IC1401:
CXD2712R) of the DIGITAL board and is written in the RAM
(IC1402: IDT71V016S). When the test data is read from the RAM
by the DSP, the data output must be equivalent to the original data.
If they disagree, an error is triggered. Errors can be caused by the
broken data line or defective soldering.
Procedure:
1. While pressing the
[SOUND FIELD MODE + ]
and
[DIMMER]
buttons, press the
`/1
button to enter the DSP test mode.
2. The message DSP TEST MODE appears. When an error oc-
curs, the message DSP2 ERROR is displayed. When there is
no error, the message DSP2 NO ERROR appears and the 1
kHz signal is output to all channels.
no error, the message DSP2 NO ERROR appears and the 1
kHz signal is output to all channels.
3. Use the
[MUTING]
button, when selecting the SINE WAVE,
THROUGH, or IMPLUSE mode.
Version Mode
When this mode is used, the microprocessor version number is
displayed.
Procedure:
1. Press the
displayed.
Procedure:
1. Press the
`/1
button while pressing the
[MUTING]
, and
[DIM-
MER]
buttons to turn on the power. The microprocessor ver-
sion number appears as follows.
( )
( )
( )
10
MEMO
11
11
STR-DE845/DE945
L
D
ATA
FM
AM
FM
75
Ω
AM
DO
TUNED
MUTING
STEREO
D
ATA
CLOCK
CE
L OUT
R OUT
TM301
TUNER UNIT
TUNER UNIT
DO
TUNED
MUTING
STEREO
S DA
TA
S CLK
S LA
T
R CH
PHONO IN
(DE945)
(DE845)
(DE945)
(DE845)
L
CD IN
J301
L
IN
L
RECOUT
J302
J1001
DAT/MD
MD/TAPE
M OUT
J201
MONITOR
J202
J203
VIDEO 1
V1 IN
V1 OUT
V2 IN
V2 OUT
TV
LD
VEE
VCC
SW1
SW2
SW3
SW4
VIDEO SELECT
IC201
+5V
–5V
D202
D201
D204
D205
CE
CLK
DI
AUDIO SELECT
IC301
MUTE
Q1502
S LA
T
S CLK
S DA
TA
S LA
T
S CLK
S DA
TA
EQ AMP
IC302
MUTE
Q1505 IC1508
MUTE
Q1506
VIDEO
(SW1)
(SW1)
SYSTEM
CONTROLLER
IC1201 (1/2)
VIDEO
(SW2)
VIDEO
(SW3)
VIDEO
(SW4)
(SW2)
VIDEO
(SW3)
VIDEO
(SW4)
AUTO STOP
STEREO
TUNER MUTE
S DA
TA
S CLK
S LA
T
DO
TUNED
STEREO
TMUTE
D
ATA
CLOCK
LA
TCH
J299-1
L
AUDIO
VIDEO 3 INPUT
SELECTOR
IC303
L
TAPE
IN
L
Y
V1 0
LD
M 0
Y SWITCH
IC252
VIDEO 1
S-VIDEO OUT
MONITOR
S-VIDEO OUT
Y
C
C
C SWITCH
IC251
C
Y
J251
J253-2
J252-1
05
J303
V1 0
V1 I
M 0
V1 I
C
Y
J253-1
C
Y
LD
TV
TV
TM301
(ANTENNA)
IR LINK
DET
IC001
DVD/LD IN
IR LINK
DET
IC002
TV/SAT IN
IR LINK
DET
IC003
DAT/MD IN
IR LINK
DET
IC004
MD/DAT OUT
DVD/LD IN
COAX
IC007
SW1
SW2
SW3
SW4
SW5
SW5
SW1
SW2
SW3
SW2
SW3
SW4
VIDEO OUT
SELECT
SWITCH
IC1005
SWITCH
IC1005
B
A
B
A
DI
DIG IN A
DIG IN B
A
B
CL
CE
DO
DIGITAL AUDIO
I/F RECEIVER
IC1101
D IN
DI
CLK
CLK
CE
DATA
CK OUT
BCK
12.288M
ERROR
DO
X3501
12.288MHz
IC1404
IC1404
XI
SDIA0
SDIA1
SDWCK0
DOLBY
DIGITAL AUDIO DECODER
IC1301
AU
DATA0
AU
DATA1
AU
DATA2
SCK
SCCLK
SI
CS
IC
SI
CS
IC
SO
SO
D1202
ANALOG/DIG
ERROR
SRAM
IC1402
SIA
SIB
SIC
XWE
XOE
XOE
XHDWR
HA0
AUDIO DSP
IC1401
XHDWR
XHDCS
XRST
XHDCS
HRDY
XRST
HRDY
SOD
SOD
S MUTE
IC1202
IC1202
Q1201
Q1202
CDTI
CCLK
CS
PD
SOA
LRCK1
LRCK0
BCK1 SOB
SOC
L OUT1
LIN-
AUDIO CODEC
IC1503
S MUTE
CDTI
CCLK
CS
PD
SDTO
MCLK1
BCLK
BCLK
LRCK
SDTI 1
SDTI 2
SDTI 3
LIN+
IC1504
IC1504
L OUT3
IC1508
IC1509
MUTE
Q1503
IC1510
R OUT3
L OUT2
IC1507
IC1505
IC1505
IC1506
MUTE
DRIVE
Q1507
Q1204
Q1203
U DATA
DISP DATA
DISP CLK
DISP MR
SREQ
SOTO
SINO
MD2
MD0
MD0
RESET
U CLOCK
U MREQ
U MREQ
U SREQ
SOT0
SIN1
MD2
MD0
U REST
RY POWER
RY POWER
AC MUTE
PROTECT
RY HP
RY FRONT A
RY FRONT B
RY CENTER
RY WOOFER
RY REAR
AC MUTE
PROTECTOR
HP RY
SP/A RY
SP/A RY
SP/B RY
RY CENTER
RY WOOFER
REAR SP RY
XO
XI
X1201
16MHz
STOP
STOP
IC11404
TUNER
CD
MD
TAPE
TAPE
COM
COM
COM
COM
S LA
T
S CLK
S DA
TA
SELECTOR
IC330
SW5
S DA
TA
S CLK
S LA
T
EV DA
TA
EV CLK
EV STB
IC309
AUTO
LRCK
SDBCK0
IC1403
IC1403
IC1403
BCK0
IC1403
IC1403
DFS
CLKI
CLKO
X1401
10MHz
RELAY
DRIVE
Q301
SELECTOR
IC1502
2CH L
CDL
S.1-L
S.1-LS
S.1-C
S.1-C
L
C
W
LS
L OUT
C OUT
W OUT
LS OUT
S LA
T
S CLK
S DA
TA
RY301
J306
2ND
AUDIO
OUT
L
R
R CH
L
C
W
SL
DATA
CLK
LAT
CLK
LAT
XMODE
X
S
TAT
E
XMODE
X
S
TAT
E
AUTO
S MUTE
RESET
D1201
IC304
96kHZ
D SIG
1
3
2
13
15
14
4
10
12
(DE945)
RECOUT
L
INPUT
L
INPUT
J305
L
OUTPUT
TV/SAT
DVD/LD
VIDEO2
VIDEO OUT
VIDEO IN
VIDEO 1
VIDEO 2
VIDEO OUT
VIDEO IN
VIDEO IN
VIDEO IN
TV/SAT
S-VIDEO IN
TV/SAT
S-VIDEO IN
S-VIDEO IN
DVD/LD
DVD/LD
(DE945)
CONTROL
CE
CLK
DI
L
INPUT
L
OUTPUT
J304
L
INPUT
VIDEO1
CONTROL
D1101
6
2
1
7
5
3
2
4
6
7
3
5
53
ı
69
76
ı
94
ED16 – 31
EA0 – 15
25
ı
31
39
39
ı
45
D0 – 7
D0 – 7
24 – 17
HD0 – HD7
HA0
10
11
8
9
5
5
5
3
7
7
7
1
SUB WOOFER
5.1CH INPUT
CENTER
REAR L
FRONT L
J307
B
C
D
•
SIGNAL PATH
: FM
: PHONO
: DVD
: CD
(DE945)
J252-2
26
27
25
26
27
25
23
3
4
2
8
7
6
11
12
14 16
3
36
38
37
15
10
15 14 16
5
7
10
11
12
2
14
4
6
3
4
9
72
75
76
77
1
13
15
16
8
14
10
4
6
2
5
3
15
14
10
4
6
2
1
15
2
14
10
4
6
1
13
5
3
13
9
11
3
5
58 59 60 84
112 110 111
109 118
56 57 55
47 48 46
116 113 114 106
85
6
32
48
17
35
34
22
8
82
83
24
23
22
113
114
115
116
117
74
70
15
9 14 26
2
3
4
99
5
13
100
2
27
19
18
20
23
26
3
21
17
25
4
22
27
2
24
15 14 16
23
24
25
5
4
39
9
29
30
3
4
118
119
83
84
85
15
14
13
16
1 2 4
5
69 68 66
62
3
25
13 16 26
27 15
31 30 29 28 32 35
82
66
51
90
105
69
10
9
87
89
92
93
104
99
100
101
103
102
50
52
49
3 43 42 41 17 11
108 107
27
26
25
27
26
25
17
14 16
15
14
12
13
11
(Page 13)
(Page 13)
(Page 13)
SECTION 4
DIAGRAMS
4-1.
BLOCK DIAGRAM – MAIN Section (1/2) –
12
12
STR-DE845/DE945
VIDEO SELECT
IC2005
Y SWITCH
IC252
C SWITCH
IC251
VIDEO BUFFER
IC2002
X2002
14MHz
CLOCK
IC2001
IC2001
05
J299-2
(DE945)
J2003
J2002
VCC
VEE
+5V
–5V
SW1
16
8
14
V1 OUT 15
3 TV
5 LD
13 V1 IN
1
M OUT
6
SW4
4
SW3
10
SW2
14
SW1
Y
C
V1 OUT 15
3 TV
5 LD
13 V1 IN
1
M OUT
6
SW4
4
SW3
10
SW2
14
SW1
C IN
10
9
8
11
4
Y IN
2
V IN
3
6
C OUT
8
Y OUT
7
V OUT
VBLK 6
26 C OUT
27 Y OUT
25 V OUT
8
10
EXS
HSYNC
VSYNC
TEST
SW2
SW3
SW4
D2003
D2004
VIDEO (SW1)
SYSTEM CONTROLLER
IC1201 (2/2)
VIDEO (SW2)
VIDEO (SW3)
VIDEO (SW4)
10
4
75
76
77
72
6
SW5
M OUT
V3
TV
LD
V2 OUT
V2 IN
V1 OUT
V1 IN3
2
1
7
3
5
11
9
15
13
VIDEO IN
VIDEO IN
VIDEO OUT
VIDEO IN
VIDEO OUT
VIDEO IN
VIDEO
VIDEO 3
INPUT
TV/SAT
S-VIDEO IN
TV/SAT
DVD/LD
J2001
VIDEO OUT
MONITOR
VIDEO 1
VIDEO 2
Y
C
Y
J253-1
S-VIDEO IN
DVD/LD
J253-2
S-VIDEO IN
VIDEO 1
J252-1
C
Y
C
S-VIDEO OUT
VIDEO 1
J252-2
SCLK 22
SIN 23
CS 24
OSD VBLK
56
OSD CLK
26
OSD DOUT
28
OSD VSYNC
55
OSD LAT
MODE
CONTROL
IC102
100
YIN 1
VIN 3
CIN 2
EXHSYN
CNP253
(FOR CHECK)
12
IN
VSYNC
D2002
D2005
IC2008
SYNC
IC2006
SYNC
Q2001, 2002
HSYNC
2
1
4
Y
C
S-VIDEO OUT
MONITOR
J251
IC2004
OSD DRIVER
11 21
IN
VSYNC
HSYNC
2
1
4
4-2.
BLOCK DIAGRAM – MAIN Section (2/2) –
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