Sony STR-DG300 Service Manual ▷ View online
37
STR-DG300
Pin No.
Pin Name
I/O
Pin Description
53
RDS_DATA/
I/O
RDS data input
XM_COMMAND
54
SIRCS
I
SIRCS signal input
55
HP_DETECT
I
Headphones detection signal input
56
POWER_KEY
I
Power key detection signal input
57
ADCC_INT
I
ADCC data input from DSP IC
58
POWER_RY
O
Power relay driver control signal output
59
VOL_CL
O
Clock signal output for DIR IC
60
VOL_DA
O
Serial data and latch output for DIR IC
61
PROTECTOR
I
Protector detection signal input
62
HP_RY
O
Headphone relay driver control signal output
63
FUSE_DETECT
I
Fuse open detection signal input
64
VOL_ENCODER (B)
I
MASTER VOLUME encoder (B) signal input
65
VOL_ENCODER (A)
I
MASTER VOLUME encoder (A) signal input
66
FRONT_RY
O
Front speaker relay driver control signal output
67
SP_B_RY
O
Front speaker B relay driver control signal output
68
C/SB_RY
O
Center/Surround back speaker relay driver control signal output
69
REAR_RY
O
Surround speaker relay driver control signal output
70
SW_RY
O
Sub woofer relay driver control signal output
71
ANALOG_SW_CLK (DE8)
O
Not used (Open)
72
BRIDGEABLE_RY
O
Bridgeable relay driver control signal output
73
DO
I
Tuner serial data input
74
SLATCH
O
Tuner latch signal output
75
TUNED
I
Tuned signal detection input
76
STEREO
I
Stereo signal detection input
77
RSTX
I
Reset signal input
78
MUTE
O
Tuner mute signal output
79
X1A
—
Not used (Open)
80
X0A
—
Not used (Connect to VSS)
81
VSS
—
Ground
82
X0
—
Clock signal input (24 MHz)
83
X1
—
Clock signal output (24 MHz)
84
VCC3
—
Power supply pin (+3.3 V)
85
ANALOG_SW_DATA
O
Not used (Open)
(DE8)
86
D595_DATA
O
Not used (Open)
87
D595_CLK
O
Not used (Open)
88
D595_OE
O
Not used (Open)
89
D595_LAT
O
Not used (Open)
90
SELECT2
O
Not used (Open)
91
SELECT1
O
Not used (Open)
92
BST_SEL
O
96/24 signal output for DSP IC
93
XMODE
O
Xmode signal output for DIR IC
94
CKSEL1
O
Clock select signal output for DIR IC
95
CLK
O
Data clock signal output for DIR IC
96
CE
O
Latch signal output for DIR IC
97
DI
O
Data output for DIR IC
98
DO
I
Data input from DIR IC
99
ERROR
I
Error detection signal input from DIR IC
100
XSTATE
I
Xstate signal input from DIR IC
38
STR-DG300
SECTION 5
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
5-1. CASE SECTION
Ref. No.
Part No.
Description
Remark
1
2-661-145-11 CASE (BLACK)...(BLACK)
1
2-661-145-31 CASE (SILVER)...(SILVER)
2
3-363-099-02 SCREW (CASE 3 TP2) (BLACK)...(BLACK)
2
3-363-099-11 SCREW (CASE 3 TP2) (SILVER)...(SILVER)
* 3
3-703-244-00 BUSHING (2104), CORD
0 4
1-777-071-83 CORD, POWER
TN1
1-693-676-11 TUNER PACK (ANTENNA)
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories are given in the last of this parts list.
R
R
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
1
2
3
4
2
#1
#1
#1
#1
#1
#1
TN1
#1
not supplied
#1
39
STR-DG300
5-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
X-2109-121-1 FRONT PANEL ASSY (BLACK)...(BLACK)
51
X-2109-122-1 FRONT PANEL ASSY (SILVER)...(SILVER)
52
4-977-358-01 CUSHION
53
2-661-142-01 KNOB (VOLUME) (BLACK)...(BLACK)
53
2-661-142-11 KNOB (VOLUME) (SILVER)...(SILVER)
54
2-661-141-01 KNOB (MENU) (BLACK)...(BLACK)
54
2-661-141-11 KNOB (MENU) (SILVER)...(SILVER)
55
3-087-053-01 +BVTP 2.6 (3CR)
56
A-1178-564-A DISPLAY BOARD, COMPLETE
57
1-829-023-11 WIRE (FLAT TYPE) (23 CORE)
FL101
1-519-866-01 VACUUM FLUORESCENT DISPLAY
55
55
55
51
55
55
52
53
54
54
56
57
not supplied
(MINI AUDIO IN board)
(MINI AUDIO IN board)
not supplied
(HEADPHONE board)
(HEADPHONE board)
FL101
supplied with
RV102
RV102
supplied with
RV101
RV101
supplied with
RV103
RV103
not supplied
(POWER board)
(POWER board)
40
STR-DG300
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
5-3. CHASSIS SECTION
101
102
104
103
105
107
107
106
106
106
106
#1
#1
#1
F902
F901
Q754
Q753
Q704
Q703
T901
not supplied
(STANDBY board)
(STANDBY board)
not supplied
(SPEAKER B board)
(SPEAKER B board)
not supplied
not supplied
101
A-1178-561-A MAIN BOARD, COMPLETE
102
3-905-609-01 SCREW (TRANSISTOR)
103
A-1178-568-A DIGITAL BOARD, COMPLETE
104
1-828-980-11 WIRE (FLAT TYPE) (15 CORE)
105
4-977-358-01 CUSHION
106
3-077-331-21 +BV 3 (3-CR)
107
4-249-675-01 +BV SUMITITE S 4X6 ROUND
0 F901
1-532-464-33 FUSE (T2.5AL/250V)
0 F902
1-532-464-33 FUSE (T2.5AL/250V)
Q703
6-702-390-01 TRANSISTOR MN2488-OPY-MK
Q704
6-702-391-01 TRANSISTOR MP1620-OPY-MK
Q753
6-702-390-01 TRANSISTOR MN2488-OPY-MK
Q754
6-702-391-01 TRANSISTOR MP1620-OPY-MK
0 T901
1-439-550-21 TRANSFORMER, POWER (MAIN)
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
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