Sony STR-DE225 / STR-DE325 Service Manual ▷ View online
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
I/O
O
O
O
I
I
I
I
—
I
I
—
—
O
O
O
I
I
I
I
I
O
O
O
O
O
O
O
O
O
O
—
O
O
O
O
O
O
O
O
O
Description
Volume up.
Volume down.
Standby LED drive.
System power ON/OFF.
RDS data input.
RDS clock input.
Stop signal input from NJM2103D (IC950).
Ground.
Sircs signal input.
Power switch input terminal.
5.1ch LED drive.
Power supply (+5V).
Bass boost LED drive.
Line mute drive.
SL mute drive.
Input for model select.
Key in 4.
Key in 3.
Key in 2.
Key in 1.
SR mute drive.
Key out 15.
Key out 14.
Key out 13.
Key out 12.
Key out 11.
Key out 10.
Key out 9.
Key out 8.
Key out 7.
Connect to –24V.
Key out 6.
Key out 5.
Key out 4.
Key out 3.
Key out 2.
Key out 1.
Fluorescent indicator tube drive.
Pin Name
VOLUME UP
VOLUME DOWN
STANDBY
SYS. POWER
RDS. DATA. IN
RDS. CLK. IN
STOP
Vss
SIRCS
POWER SW
5.1ch LED
+5V
BASS BOOST
FUNC. MUTE
SL MUTE
VERSION
K14
K13
K12
K11
SR MUTE
S15
S14
S13
S12
S11
S10
S9
S8
S7
VLOAD
S6
S5
S4
S3
S2
S1
DIG10
DIG9
DIG8
Fluorescent indicator tube drive.
Fluorescent indicator tube drive.
— 26 —
— 27 —
3-12. IC BLOCK DIAGRAMS
• IC BLOCK DIAGRAMS
IC1
BU1922
QUALITY BIT
GENERATOR
GENERATOR
DEFFERENTIAL
DECODER
BIPHASE
SYMBOL
SYMBOL
DECODER
OSCILLATOR
AND
DIVIDER
57kHz
BANDPASS
(8th ORDER)
CONTAS LOOP
VARIABLE AND
FIXED DIVIDER
FIXED DIVIDER
REFERENCE
VOLTAGE
ANTI-
ALIASING
FILTER
CLOCKED
COMPARATOR
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
RECONSTRUCTION
FILTER
14
15
16
13
12
11
10
9
3
2
1
4
5
6
7
8
CLOCK REGENERATION
AND SYNC
VP1
RDCL
TS7
OSCO
OSCI
V
DDD
V
SSD
TEST
TSTL
D
QUAL
RDDA
Vref
MUX
V
DDA
V
SSA
CIN
SCOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
CONTROL
LATCH
SHIFT RESISTOR
LEVEL SHIFT
CL
DI
CE
VEE
OUT
IN
OUT
IN
OUT
IN
VSS
S
RESET
VDD
OUT
IN
IN
OUT
IN
OUT
IN
IC401, IC500
LC7822
2
3
5
4
6
7
9
8
1
MUTE
+ VOUT1
– VOUT1
COMP1
MF1
IN1
GND
IN2
NF2
COMP2
– VOUT2
+ VOUT2
VCC1
VCC2
VEE
PROTECTOR
BIAS CIRCUIT
REG
DRIVE
PRE
DRIVE
11
10
12
13
15
14
DRIVE
PRE
DRIVE
IC701
uPC2581V
— 28 —
1
2
3
4
5
6
7
8
9
NC
OUTPUT 2
Vcc
GND
NC
INPUT 2
INPUT 1
NC
MOTOR
DRIVE
MOTOR
DRIVE
REG
SWITCH
SWITCH
OUTPUT1
IC202
BA6208
IC950
NJM2103D
1
2
3
4
5
6
7
8
V+
VSB/SESIN
VSA
RESET
GND
OUTC
VSC
CR
VREF
+
–
–
+
–
+
–
+
Q
R
S
SECTION 4
EXPLODED VIEWS
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
packing materials are given in the last of this
parts list.
•
Abbreviation
CND : Canadian
CND : Canadian
G
: German
EE
: East European
MY : Malaysia
AUS : Australian
SP
: Singapore
CH
: Chinese
EA
: Saudi Arabia
— 29 —
When indicating parts by reference number,
please include the board name.
please include the board name.
The components identified by mark
!
or
dotted line with mark
!
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
!
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
le numéro spécifié.
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
4-1. FRONT PANEL SECTION
p
A : VOLUME board
a
SONY
a
15
16
16
16
10
9
7
6
12
5
4
3
2
1
3
4
11
10
8
#1
10
p
A
10
not
supplied
supplied
not
supplied
supplied
#1
#1
#1
13
14
1
4-998-717-01 KNOB (BAL)
2
X-4949-627-1 KNOB (VOL) ASSY
3
4-977-593-11 RING (DIA. 50), ORNAMENTAL
(EXCEPT US,CND)
4
4-977-358-11 CUSHION
5
4-996-698-01 EMBLEM, SONY
6
4-998-189-01 BUTTON (P-T)
7
X-4949-628-1 FRONT PANEL ASSY (DE325:US,CND)
7
X-4949-629-1 FRONT PANEL ASSY (DE225:CND)
7
X-4949-679-1 FRONT PANEL ASSY (DE325:AUS)
7
X-4949-680-1 FRONT PANEL ASSY (DE325:E,EA,CH,SP,MY)
7
X-4949-681-1 FRONT PANEL ASSY (DE325:AEP,G,EE)
7
X-4949-682-1 FRONT PANEL ASSY (DE225:AEP,G,EE,UK)
* 8
1-669-263-11 10 KEY BOARD
* 9
A-4407-424-A DISPLAY BOARD, COMPLETE (DE325:SP,MY)
* 9
A-4407-434-A DISPLAY BOARD, COMPLETE
(DE225:CND/DE325:US,CND)
* 9
A-4407-510-A DISPLAY BOARD, COMPLETE
(DE225:AEP,G,EE,UK)
* 9
A-4407-515-A DISPLAY BOARD, COMPLETE (DE325:AUS)
* 9
A-4407-518-A DISPLAY BOARD, COMPLETE (DE325:E,EA,CH)
* 9
A-4407-521-A DISPLAY BOARD, COMPLETE (DE325:AEP,G,EE)
10
4-951-620-01 SCREW (2.6
×
8), +BVTP
* 11
A-4407-436-A VR-TONE BOARD, COMPLETE
(DE225:CND/DE325:EXCEPT AEP,G,EE)
* 11
A-4407-523-A VR-TONE BOARD, COMPLETE
(DE225:AEP,G,EE,UK/DE325:AEP,G,EE)
12
1-782-084-11 WIRE (FLAT TYPE) (23 CORE)
13
1-782-074-11 WIRE (FLAT TYPE) (7 CORE)
14
1-782-075-11 WIRE (FLAT TYPE) (9 CORE)
* 15
4-998-206-21 CASE (413226)
16
3-710-901-11 SCREW, TAPPING
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