Sony KV-28DS20U Service Manual ▷ View online
108
5-5. IC BLOCK DIAGRAMS (2)
A BOARD IC4 PST593C
OSC
3
1
4
2
DELAY
T
R
Q
V c c
V out
G N D
R e s e t
+
-
D BOARD IC500 STV9379
+
-
THERMAL
PROTECTION
1
POWER
AMP
7
5
4
6
8
2
FLYBACK
GENERATOR
D BOARD IC600 STR-S6709
PRE REG
START UP
OVP
REF
1
2
8
7
PROPORTIONAL
DRIVE
5
4
3
6
OSC
THERMAL
LATCH
9
109
SECTION 6
EXPLODED VIEWS
REF. NO. PART.NO DESCRIPTION REMARK
REF. NO. PART.NO DESCRIPTION REMARK
•
Items with no part number and no description are not
stocked because they are seldom required for routine
service.
stocked because they are seldom required for routine
service.
•
The construction parts of an assembled part are indi-
cated with a collation number in the remarks column.
cated with a collation number in the remarks column.
•
Items marked “ * “ are not stocked
since they are seldom required for
routine service. Some delay should
be anticipated when ordering
these items.
since they are seldom required for
routine service. Some delay should
be anticipated when ordering
these items.
6-1. CHASSIS
NOTE :
1
*A-1647-029-A H BOARD, COMPLETE
2
£
1-571-433-21 SWITCH, PUSH (AC POWER)
3
*4-204-752-01 BRACKET, MAIN
4
*A-1642-259-A D1 BOARD, COMPLETE
5
*4-202-531-01 AC CORD LOCK (SC)
6
£
1-776-204-12 CORD POWER (FILTER)
7
*A-1642-253-A D BOARD, COMPLETE (KV-28DS20U/28DX20U)
*A-1642-252-A D BOARD, COMPLETE (KV-32DS20U/32DX20U)
8
£
X-4560-158-1 TRANSFORMER ASSY, FLYBACK (NX-4404//U2B4)
9
*A-1642-254-A D2 BOARD, COMPLETE (KV-28DS20U/28DX20U)
*A-1642-251-A D2 BOARD, COMPLETE (KV-32DS20U/32DX20U)
10
*A-1630-490-A A1 BOARD, COMPLETE (KV-28DS20U/32DS20U)
11
1-693-339-11 TUNER/VIF (UK)
12
*A-1632-854-A A BOARD, COMPLETE (KV-28DS20U/32DS20U)
*A-1632-852-A A BOARD, COMPLETE (KV-28DX20U/32DX20U)
13
*A-1651-115-A J BOARD, COMPLETE (KV-28DS20U/32DS20U)
14
*A-1652-067-A N BOARD, COMPLETE
15
*A-1632-853-A A2 BOARD, COMPLETE (KV-28DS20U/32DS20U)
*A-1631-052-A A2 BOARD, COMPLETE (KV-28DX20U/32DX20U)
16
*4-204-751-01 BRACKET, A2
17
*A-1674-139-A SP BLOCK ASSY
18-21
18
*4-204-776-11 BOX, WOOFER
19
4-039-358-01 SCREW (4x16), (+) BV TAPPING
20
1-529-417-11 SUB WOOFER SPEAKER (8CM)
21
*4-204-775-11 BAFFLE WOOFER
22
4-384-096-01 SCREW (4x16), TAPPING + P
23
1-529-408-11 SPEAKER (4.2x24CM)
24
4-204-733-21 COVER, REAR (KV-28DS20U/28DX20U)
4-204-735-11 COVER, REAR (KV-32DS20U/32DX20U)
23
21
20
19
1
2
6
22
18
7
19
24
9
8
5
4
3
22
23
14
17
15
11
12
10
13
16
110
REF. NO. PART.NO DESCRIPTION REMARK
REF. NO. PART.NO DESCRIPTION REMARK
72
62
52
75
76
77
78
79
74
54
56
57
58
60
63
64
65
66
55
67
71
68
51
X-4200-470-2 BEZNET ASSY
55-59
(KV-28DS20U/28DX20U)
X-4200-488-2 BEZNET ASSY
55-60
(KV-32DS20U/32DX20U)
52
4-045-250-01 DAMPER
53
4-204-731-31 DOOR (KV-28DS20U/32DS20U)
4-204-731-21 DOOR (KV-28DX20U/32DX20U)
54
4-202-555-01 SHAFT DOOR
55
4-042-192-11 CATCHER, PUSH
56
4-204-730-11 WINDOW ORNAMENTAL
57
4-204-728-01 BUTTON, POWER
58
4-202-964-11 SPRING
59
4-204-729-01 GUIDE LIGHT
60
4-204-058-41 SHEET, BLOTTING (KV-32DS20U/32DX20U)
61
£
8-737-786-05 PICTURE TUBE (W66LLX060X) SD-299
(KV-28DS20U/28DX20U)
£
8-735-054-05 PICTURE TUBE (W76LLZ060X) SD-302
(KV-32DS20U/32DX20U)
62
£
1-451-481-11 DEFLECTION YOKE (Y28RVC2)
(KV-28DS20U/28DX20U)
£
1-451-480-11 DEFLECTION YOKE (Y32RVC2)
(KV-32DS20U/32DX20U)
63
1-452-896-11 COIL, NA ROTATION (RT200)
64
£
8-453-011-11 NECK ASSY, NA299-M
65
*A-1644-098-A VM BOARD, COMPLETE
66
*A-1638-126-A C BOARD, COMPLETE
67
4-200-433-01 SPRING, EXTENSION
68
£
1-416-466-11 COIL, DEMAGNETIC (KV-28DS20U/28DX20U)
£
1-416-769-11 COIL, DEMAGNETIC (KV-32DS20U/32DX20U)
69
*4-203-390-01 CUSHION DGC
70
*4-057-303-01 HOLDER, DGC
71
4-202-554-01 HOLDER, HV CABLE
72
£
1-251-807-11 CAP ASSY, HIGH VOLTAGE
73
3-704-495-01 SPACER, DY
74
4-036-188-01 SCREW, SELF TAPPING (KV-28DS20U/28DX20U)
4-204-225-01 PT SCREW (KV-32DS20U/32DX20U)
75
4-308-870-00 CLIP, LEAD WIRE
76
1-452-094-00 MAGNET, ROTATABLE DISK; 15MM Ø
77
1-425-032-00 MAGNET,DISK; 10MM Ø
78
X-4387-214-1 PERMALLOY ASSY, CORRECTION
79
3-701-007-00 BAND, BINDING
70
59
53
61
69
69
73
6-2. PICTURE TUBE
51
REF. NO. PART.NO DESCRIPTION REMARK
REF. NO. PART.NO DESCRIPTION REMARK
111
101
7-685-659-79 SCREW (4x8)
102
1-504-783-11 SPEAKER (8CM)
103
X-494-575-81 PANEL ASSY, FRONT
104
X-494-575-71 CABINET ASSY, SPEAKER
105
4-929-125-01 SCREW (4x16)
106
4-960-366-01 SCREW (3.5x9.5)
107
X-494-641-31 FRAME ASSY, GRILLE
108
1-537-763-11 TERMINAL BOARD
109
4-979-187-01 SCREW (4.2x13)
110
4-977-191-01 CABINET, SPEAKER
101
6-3. CENTRE SPEAKER AND SURROUND SPEAKER (KV-28DS20U/32DS20U only)
103
102
104
105
107
108
109
110
106
CENTRE SPEAKER
SURROUND SPEAKER
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