Sony KV-21FX250 Service Manual ▷ View online
KV-21FX250/21FX250A/21FX250C
KV-21FX250/21FX250A/21FX250C
41
2SB709A-QRS-TX
2SD601A-QRS-TX
2SD601A-QRS-TX
2SB734-T-34
2SC3209LK-TP
2SC3209LK-TP
2SA1837
2SA1091O-TPE2
2SA1309A-QRSTA
2SC3311A-QRSTA
2SD2144S-TP-UVW
2SC3311A-QRSTA
2SD2144S-TP-UVW
2SC3840K
IRF614 2SK2663
2SD2578-YB
2SC4793
ERB44-06TP1
1SS83TD
GP08DPKG23
RGP10GPKG23
RU4AM-T3
1SS83TD
GP08DPKG23
RGP10GPKG23
RU4AM-T3
RD9.1EW-T1
MA111-TX
UDZ-TE-17.5.1B
UDZ-TE-17.91B
UDZ-TE-17.5.1B
UDZ-TE-17.91B
D2SB60A-F04
DAP202K-T-146
D4SB60L-F
D5LC20U
E
B
C
B
C
E
LETTER SIDE
E C B
LETTER SIDE
E
C B
B
C E
E C B
G D
S
D
G
S
1 2
3
CATHODE
ANODE
ERA38-06TP1
ERA82-004TP5
1SS133T-77
D1NS0R-TA
MTZJ-T-77-12C
MTZJ-T-77-15B
MTZJ-T-77-33B
MTZJ-T-77-39
ERA82-004TP5
1SS133T-77
D1NS0R-TA
MTZJ-T-77-12C
MTZJ-T-77-15B
MTZJ-T-77-33B
MTZJ-T-77-39
CATHODE
ANODE
CATHODE
ANODE
ANODE
CATHODE
+
~
-
~
1
2
3
1
2
3
{
’
’
{
’ ’
MARKING SIDE VIEW
CATHODE
ANODE
CATHODE
CATHODE
ANODE
GATE
TF541M
RU-1P
ERC06-15S
EGP20DPKG23
MTZJ-T-77-5.1C
MTZJ-T-77-5.6C
MTZJ-T-77-7.5A
MTZJ-T-77-10B
MTZJ-T-77-30D
RGP10-GPKG3
RGP02-17PKG23
RGP15GPKG23
ERC06-15S
EGP20DPKG23
MTZJ-T-77-5.1C
MTZJ-T-77-5.6C
MTZJ-T-77-7.5A
MTZJ-T-77-10B
MTZJ-T-77-30D
RGP10-GPKG3
RGP02-17PKG23
RGP15GPKG23
4-5. SEMICONDUCTORS
42
KV-21FX250/21FX250A/21FX250C
KV-21FX250/21FX250A/21FX250C
Components not identifi ed by a part number or
description are not stocked because they are seldom
required for routine service.
description are not stocked because they are seldom
required for routine service.
The component parts of an assembly are indicated by the
reference numbers in the far right column of the parts list
and within the dotted lines of the diagram.
reference numbers in the far right column of the parts list
and within the dotted lines of the diagram.
*
Items marked with an asterisk are not stocked since
they are seldom required for routine service. Expect
some delay when ordering these components.
some delay when ordering these components.
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
NOTE: The components identifi ed by shading and
!
mark are critical for safety.
Replace only with part number specifi ed.
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
5-1. CHASSIS, PICTURE TUBE AND SPEAKERS
4-057-862-11
SCREW, TAPPING 5+CROWN WASHER
7-685-648-79
SCREW +BVTP 3X12 TYPE2 IT-3
2-580-654-01
SCREW, +PWTP2 4X16
4-046-797-21
SCREW (3X12), (+)BVTAP
1
X-2178-488-1
BEZNET ASSY
[2-9]
2
2-682-548-01
BUTTON, POWER
3
4-036-405-11
SPRING, COMPRESSION
4
X-2109-715-1
DOOR, CONTROL ASSY
5
3-950-280-01
MAGNET
6
X-2109-725-1 SIDE
PANEL
ASSY
(L)
7
X-2109-726-1
SIDE PANEL ASSY (R)
*
8
2-682-549-01
GUIDE, LIGHT
9
3-953-235-01
DAMPER, OIL
10
1-825-163-32
SPEAKER (5CM)
11
1-826-364-12
LOUDSPEAKER (6.5X15CM)
*
12
A-1271-264-A
H1 BOARD (VAR), MOUNTED
*
13
2-682-553-01
COVER, BOTTOM
!
14
8-738-873-05
CRT 21RSN2(FOR ME) A51LPT**X
*
15
2-664-650-01
CUSHION (60X120), DGC
*
16
2-897-642-01
CUSHION (50X30) ,DGC
17
1-452-032-00
MAGNET,DISC
18
4-094-690-01
PIECE A(90), CONV. CORRECT
*
19
2-656-888-02
HOLDER, HV CABLE COMBI
20
4-046-600-11
SPACER, DY
30
31
32
29
33
34
35
28
10
11
12
13
10
11
17
19
21
20
23
24
22
26
27
25
18
14
15
16
1
9
8
2
3
4
5
6
7
21
4-057-714-01 PIECE
ASSY,
TLH
CORRECTION
!
22
8-451-505-91
DY Y21RSA-W3
23
2-898-129-01
SPRING, EXTENSION
*
24
A-1271-263-A
CV BOARD (VAR), MOUNTED
!
25
1-457-410-11
DEGAUSSING COIL (KV-21FX250 ONLY)
!
25
1-457-409-11
DEGAUSSING COIL (KV-21FX250A ONLY)
!
25
1-457-392-12
DEGAUSSING COIL (KV-21FX250C ONLY)
26
4-093-607-01
HOLDER, DGC (KV-21FX250 ONLY)
27
X-2149-782-2
REAR COVER ASSY
*
28
A-1271-149-A
A BOARD, COMPLETE (KV-21FX250 ONLY)
*
28
A-1271-988-A
A BOARD, COMPLETE (KV-21FX250A ONLY)
*
28
A-1271-471-A
A BOARD, COMPLETE (KV-21FX250C ONLY)
The High-Voltage Leads associated with the FBT on these A Boards are not
included and must be ordered seperately. [See 30-32]
!
29
1-453-482-21
FBT ASSY, NX-4800//M3A4
[30-32]
!
30
1-910-027-23
LEAD ASSY, FOCUS
!
31
1-910-034-21
LEAD ASSY, G2
!
32
1-417-664-41
HIGH-VOLTAGE CAP ASSY
33
1-693-729-11 TUNER
34
4-022-115-00
HOLDER, AC CORD”
!
35
1-834-177-11
CORD, AC POWER(WITH CONNECTOR) (KV-21FX250 ONLY)
!
35
1-824-968-11
POWER CORD (WITH CONNECTOR) (KV-21FX250C ONLY)
!
35
1-783-838-52
CORD, POWER (WITH CONNECTOR) (KV-21FX250A ONLY)
SECTION 5: EXPLODED VIEWS
KV-21FX250/21FX250A/21FX250C
KV-21FX250/21FX250A/21FX250C
43
*
Items marked with an asterisk are not stocked since they
are seldom required for routine service. Expect some delay
when ordering these components.
when ordering these components.
RESISTORS
• All resistors are in ohms
• F : nonfl ammable
• All variable and adjustable resistors
• All resistors are in ohms
• F : nonfl ammable
• All variable and adjustable resistors
have characteristic curve B, unless
otherwise noted.
otherwise noted.
REF. NO.
PART NO.
DESCRIPTION
VALUES
When ordering parts by reference
number, please include the board name.
A
REF. NO.
PART NO.
DESCRIPTION
VALUES
NOTE: The components identifi ed by shading
and
and
!
mark are critical for safety. Replace only
with part number specifi ed.
SECTION 6: ELECTRICAL PARTS LIST
A
*
A-1271-149-A
A BOARD, COMPLETE (KV-21FX250 ONLY)
*
A-1271-988-A
A BOARD, COMPLETE (KV-21FX250A ONLY)
*
A-1271-471-A
A BOARD, COMPLETE (KV-21FX250C ONLY)
4-382-854-01
SCREW (M3X8), P, SW (+)
4-382-854-01
SCREW (M3X8), P, SW (+)
4-382-854-21
SCREW (M3X14), P, SW (+)
* A015 4-055-304-11 HOLDER,
LED
The high-voltage leads associated with the FBT on this
A Board is not included and must be ordered separately.
!
1-910-027-23
LEAD ASSY, FOCUS
!
1-910-034-21
LEAD ASSY, G2
!
1-417-664-41
HIGH-VOLTAGE CAP ASSY
CAPACITOR
C001 1-162-927-11 CERAMIC
CHIP
100pF 5% 50V
C002 1-126-935-11 ELECT
470μF 20%
16V
C003 1-162-927-11 CERAMIC
CHIP
100pF 5% 50V
C004 1-126-933-11 ELECT
100μF 20%
16V
C005 1-126-933-11 ELECT
100μF 20%
16V
C006 1-126-925-91 ELECT
470μF 20%
10V
C008 1-126-947-11 ELECT
47μF 20%
35V
C010 1-164-315-11 CERAMIC
CHIP
470pF 5% 50V
C013 1-126-933-11 ELECT
100μF 20%
16V
C014 1-127-715-91 CERAMIC
CHIP
0.22μF 10%
16V
C018 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C020 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C021 1-162-927-11 CERAMIC
CHIP
100pF 5% 50V
C022 1-127-715-91 CERAMIC
CHIP
0.22μF 10%
16V
C023 1-164-505-11 CERAMIC
CHIP
2.2μF 16V
C024 1-126-965-91 ELECT
22μF 20%
50V
C025 1-127-715-91 CERAMIC
CHIP
0.22μF 10%
16V
C026 1-126-947-11 ELECT
47μF 20%
35V
C028 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C029 1-126-925-91 ELECT
470μF 20%
10V
C030 1-127-715-91 CERAMIC
CHIP
0.22μF 10%
16V
C036 1-126-933-11 ELECT
100μF 20%
16V
C037 1-126-963-11 ELECT
4.7μF 20%
50V
C038 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C041 1-162-966-11 CERAMIC
CHIP
0.0022μF
10%
50V
C042 1-127-715-91 CERAMIC
CHIP
0.22μF 10%
16V
C044 1-164-505-11 CERAMIC
CHIP
2.2μF 16V
C046 1-162-969-11 CERAMIC
CHIP
0.0068μF
10%
25V
C048 1-127-715-91 CERAMIC
CHIP
0.22μF 10%
16V
C049 1-164-227-11 CERAMIC
CHIP
0.022μF
10%
25V
C050 1-126-964-11 ELECT
10μF 20%
50V
C052 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C053 1-164-227-11 CERAMIC
CHIP
0.022μF
10%
25V
C054 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C055 1-100-829-11 FILM
0.15μF 5% 250V
C056 1-126-933-11 ELECT
100μF 20%
16V
C057 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C058 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C060 1-216-864-11 SHORT
CHIP
C061 1-162-967-11 CERAMIC
CHIP
0.0033μF
10%
50V
C062 1-216-864-11 SHORT
CHIP
C063 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C064 1-126-961-11 ELECT
2.2μF 20%
50V
C065 1-126-962-11 ELECT
3.3μF 20%
50V
C067 1-216-864-11 SHORT
CHIP
C069 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C070 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C072 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C073 1-126-961-11 ELECT
2.2μF 20%
50V
C077 1-165-176-11 CERAMIC
CHIP
0.047μF
10%
16V
C078 1-162-925-11 CERAMIC
CHIP
68pF 5% 50V
C080 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C081 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C082 1-127-715-91 CERAMIC
CHIP
0.22μF 10%
16V
C083 1-162-979-11 CERAMIC
CHIP
0.0027μF
10%
50V
KV-21FX250/21FX250A/21FX250C
KV-21FX250/21FX250A/21FX250C
44
REF. NO.
PART NO.
DESCRIPTION
VALUES
REF. NO.
PART NO.
DESCRIPTION
VALUES
NOTE: The components identifi ed by shading
and
and
!
mark are critical for safety. Replace only
with part number specifi ed.
A
C089 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C090 1-162-927-11 CERAMIC
CHIP
100pF 5% 50V
C091 1-162-927-11 CERAMIC
CHIP
100pF 5% 50V
C092 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C093 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C094 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C095 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C096 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C100 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C101 1-126-964-11 ELECT
10μF 20%
50V
C102 1-162-927-11 CERAMIC
CHIP
100pF 5% 50V
C104 1-162-927-11 CERAMIC
CHIP
100pF 5% 50V
C106 1-126-964-11 ELECT
10μF 20%
50V
C107 1-126-935-11 ELECT
470μF 20%
16V
C108 1-126-935-11 ELECT
470μF 20%
16V
C109 1-162-968-11 CERAMIC
CHIP
0.0047μF
10%
50V
C111 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C112 1-162-910-11 CERAMIC
CHIP
5pF 0.25pF
50V
C115 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C116 1-162-968-11 CERAMIC
CHIP
0.0047μF
10%
50V
C117 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C118 1-126-965-91 ELECT
22μF 20%
50V
C119 1-163-021-91 CERAMIC
CHIP
0.01μF 10%
50V
C120 1-126-935-11 ELECT
470μF 20%
16V
C131 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C133 1-162-927-11 CERAMIC
CHIP
100pF 5% 50V
C135 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C137 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C138 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C140 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C200 1-125-837-91 CERAMIC
CHIP
1μF 10%
6.3V
C201 1-125-837-91 CERAMIC
CHIP
1μF 10%
6.3V
C202 1-131-664-91 CERAMIC
CHIP
0.15μF 10%
10V
C203 1-131-664-91 CERAMIC
CHIP
0.15μF 10%
10V
C204 1-130-495-00 MYLAR
0.1μF 5% 50V
C205 1-126-957-11 ELECT
0.22μF 20%
50V
C206 1-164-227-11 CERAMIC
CHIP
0.022μF
10%
25V
C207 1-130-495-00 MYLAR
0.1μF 5% 50V
C208 1-164-227-11 CERAMIC
CHIP
0.022μF
10%
25V
C209 1-126-957-11 ELECT
0.22μF 20%
50V
C210 1-126-968-11 ELECT
100μF 20%
50V
C211 1-126-963-11 ELECT
4.7μF 20%
50V
C213 1-115-339-11 CERAMIC
CHIP
0.1μF 10%
50V
C214 1-126-942-61 ELECT
1000μF
20%
25V
C215 1-128-550-11 ELECT
2200μF
20%
50V
C216 1-126-965-91 ELECT
22μF 20%
50V
C217 1-126-942-61 ELECT
1000μF
20%
25V
C218 1-126-965-91 ELECT
22μF 20%
50V
C219 1-126-934-11 ELECT
220μF 20%
16V
C220 1-126-964-11 ELECT
10μF 20%
50V
C231 1-137-374-11 MYLAR
0.047μF
5% 50V
C232 1-137-374-11 MYLAR
0.047μF
5% 50V
C234 1-164-315-11 CERAMIC
CHIP
470pF 5% 50V
C235 1-164-315-11 CERAMIC
CHIP
470pF 5% 50V
C301 1-164-315-11 CERAMIC
CHIP
470pF 5% 50V
C302 1-164-505-11 CERAMIC
CHIP
2.2μF 16V
C303 1-126-933-11 ELECT
100μF 20%
16V
C304 1-126-933-11 ELECT
100μF 20%
16V
C308 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C311 1-126-961-11 ELECT
2.2μF 20%
50V
C312 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C313 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C316 1-125-891-11 CERAMIC
CHIP
0.47μF 10%
10V
C317 1-126-934-11 ELECT
220μF 20%
16V
C318 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C319 1-162-923-11 CERAMIC
CHIP
47pF 5% 50V
C320 1-162-923-11 CERAMIC
CHIP
47pF 5% 50V
C321 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C322 1-162-964-11 CERAMIC
CHIP
0.001μF
10%
50V
C323 1-112-034-91 CERAMIC
CHIP
0.01μF 5% 50V
C325 1-164-227-11 CERAMIC
CHIP
0.022μF
10%
25V
C328 1-162-970-11 CERAMIC
CHIP
0.01μF 10%
25V
C329 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C330 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C331 1-107-826-11 CERAMIC
CHIP
0.1μF 10%
16V
C333 1-126-925-91 ELECT
470μF 20%
10V
!
C600
1-119-895-51
CERAMIC
4700pF 20% 250V
!
C602
1-165-538-31
FILM
0.1μF
10% 275V
(KV-21FX250A/250C
ONLY)
C605 1-161-830-00 CERAMIC
0.0047μF
20%
500V
C606 1-161-830-00 CERAMIC
0.0047μF
20%
500V
C609 1-161-830-00 CERAMIC
0.0047μF
20%
500V
C610 1-161-830-00 CERAMIC
0.0047μF
20%
500V
C611 1-165-922-11 ELECT(BLOCK)
470μF 20%
250V
(KV-21FX250
ONLY)
C611 1-117-752-11 ELECT(BLOCK)
330μF 20%
450V
(KV-21FX250A/250C
ONLY)
C612 1-117-623-11 FILM
1500pF
3% 1.2KV
C616 1-164-230-11 CERAMIC
CHIP
220pF 5% 50V
C619 1-130-491-00 MYLAR
0.047μF
5% 50V
Click on the first or last page to see other KV-21FX250 service manuals if exist.