Sony HT-K250 / STR-VE250 Service Manual ▷ View online
13
STR-VE250
3-6. IC BLOCK DIAGRAM
— MAIN Board —
IC153 TC74HC153AF(EL)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
2G
2C3
2C2 2C1 2C0
2Y
VCC
2C3
2C2 2C1 2C0
STROBE
2G
OUTPUT
2Y
A
SELECT
DATA INPUTS
B
B
A
A
B
B
A
A
1G
1C3 1C2
1C1 1C0
1Y
STROBE
1G
B
SELECT
1C3 1C2
1C1
1C0
OUTPUT
1Y
GND
DATA INPUTS
IC156 MC14052_BDR2
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.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Accessories and packing materials are given in
the last of this parts list.
the last of this parts list.
14
STR-VE250
4-1. OVERALL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-083-212-11 CASE, UPPER
2
A-4734-301-A MAIN BOARD, COMPLETE
3
1-769-937-11 WIRE (FLAT TYPE) (11 CORE)
4
1-693-641-11 TUNER
5
X-4955-684-1 CASE ASSY, LOWER
6
3-077-331-01 +BV3 (3-CR)
7
3-077-331-21 +BV3 (3-CR)
#1
7-621-559-29 +K 2.6X4
#2
7-685-646-79 SCREW +BVTP 3X8 TYPE2 TT (B)
not supplied
1
not supplied
a
a
b
b
c
c
not supplied
front panel section
#1
#2
#2
#2
#1
not supplied
2
6
6
6
6
6
7
3
4
5
15
STR-VE250
4-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
4-247-063-01 KNOB (VOL)
52
4-946-017-11 SPRING, RING
53
4-247-066-01 RING (VOL)
54
4-247-075-01 PANEL (FRONT)
55
A-4734-300-A DISPLAY BOARD, COMPLETE
56
A-4734-303-A LED-2 BOARD, COMPLETE
57
4-250-653-01 ILLUMINATOR (B)
58
A-4734-302-A ENCODER BOARD, COMPLETE
59
1-769-853-11 WIRE (FLAT TYPE) (5 CORE)
60
4-951-620-01 SCREW (2.6X8), +BVTP
61
4-247-074-01 FILM
62
X-4955-647-1 PANEL ASSY, FRONT
63
3-362-478-21 HOLDER(T),LED
64
1-769-950-11 WIRE (FLAT TYPE) (11 CORE)
65
4-247-061-01 ILLUMINATOR
51
52
53
54
62
64
59
58
60
60
60
60
63
55
65
61
56
57
NOTE:
•
•
Due to standardization, replacements in the
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
•
-XX, -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
CAPACITORS:
uF:
uF:
µF
•
RESISTORS
All resistors are in ohms.
METAL: metal-film resistor
All resistors are in ohms.
METAL: metal-film resistor
•
COILS
uH:
uH:
µH
•
SEMICONDUCTORS
In each case, u:
In each case, u:
µ, for example:
uA...:
µA... , uPA... , µPA... ,
uPB... ,
µPB... , uPC... , µPC... ,
uPD...,
µPD...
When indicating parts by reference number,
please include the board name.
please include the board name.
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
16
SECTION 5
ELECTRICAL PARTS LIST
STR-VE250
A-4734-300-A DISPLAY BOARD, COMPLETE
***********************
*
3-362-478-21 HOLDER (T), LED
< CAPACITOR >
C202
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
C203
1-164-156-11 CERAMIC CHIP
0.1uF
25V
< CONNECTOR >
CNS202 1-784-727-11 CONNECTOR, FFC 5P
< LIQUID CRYSTAL DISPLAY PANEL >
LCB201 1-805-249-11 DISPLAY PANEL, LIQUID CRYSTAL
< RESISTOR >
R238
1-216-809-11 METAL CHIP
100
5%
1/16W
R239
1-216-809-11 METAL CHIP
100
5%
1/16W
R246
1-216-809-11 METAL CHIP
100
5%
1/16W
R248
1-216-819-11 METAL CHIP
680
5%
1/16W
R249
1-216-833-11 METAL CHIP
10K
5%
1/16W
************************************************************
A-4734-302-A ENCODER BOARD, COMPLETE
************************
< CAPACITOR >
C201
1-124-589-11 ELECT
47uF
20%
16V
C214
1-162-970-11 CERAMIC CHIP
0.01uF
10%
25V
C216
1-162-970-11 CERAMIC CHIP
0.01uF
10%
25V
C219
1-164-156-11 CERAMIC CHIP
0.1uF
25V
< CONNECTOR >
CNS201 1-568-830-11 CONNECTOR, FFC 11P
< DIODE >
D213
8-719-988-61 DIODE 1SS355TE-17
< IC >
IC201
6-600-162-01 IC GP1UM28SXK0F
< TRANSISTOR >
Q214
8-729-216-22 TRANSISTOR
2SA1162-YG-TE85L
< RESISTOR >
R201
1-216-805-11 METAL CHIP
47
5%
1/16W
R202
1-216-805-11 METAL CHIP
47
5%
1/16W
R206
1-216-825-11 METAL CHIP
2.2K
5%
1/16W
R207
1-216-821-11 METAL CHIP
1K
5%
1/16W
R227
1-216-825-11 METAL CHIP
2.2K
5%
1/16W
R228
1-216-821-11 METAL CHIP
1K
5%
1/16W
R245
1-216-833-11 METAL CHIP
10K
5%
1/16W
R247
1-216-829-11 METAL CHIP
4.7K
5%
1/16W
< VARIABLE RESISTOR >
RV201
1-476-191-11 ENCODER, ROTARY
< SWITCH >
S201
1-572-184-11 SWITCH, KEYBOARD(I/1)
S204
1-572-184-11 SWITCH, KEYBOARD(SOUND FIELD V)
S205
1-572-184-11 SWITCH, KEYBOARD(SOUND FIELD v)
S206
1-572-184-11 SWITCH, KEYBOARD(INPUT SELECTOR)
S207
1-572-184-11 SWITCH, KEYBOARD(MUTING)
S208
1-572-184-11 SWITCH, KEYBOARD(VOL/PRESET TUNING)
S209
1-572-184-11 SWITCH, KEYBOARD(DISPLAY POSITION)
************************************************************
A-4734-303-A LED-2 BOARD, COMPLETE
*********************
< DIODE >
D203
6-500-713-01 DIODE TLPYE62T(TPJ52)
D204
6-500-713-01 DIODE TLPYE62T(TPJ52)
D205
6-500-713-01 DIODE TLPYE62T(TPJ52)
D206
6-500-713-01 DIODE TLPYE62T(TPJ52)
< TRANSISTOR >
Q202
8-729-027-43 TRANSISTOR
RT1N141C-TP-1
< RESISTOR >
R203
1-216-811-11 METAL CHIP
150
5%
1/16W
R204
1-216-815-11 METAL CHIP
330
5%
1/16W
R210
1-216-821-11 METAL CHIP
1K
5%
1/16W
************************************************************
DISPLAY
ENCODER
LED-2
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