Sony KV-28FX68B Service Manual ▷ View online
- 49 -
ERA38-06
ERA85-009
HZS9.1NB2
MTZJ-13B
MTZJ-33B
MTZJ-3.6A
MTZJ-4.7C
ERA85-009
HZS9.1NB2
MTZJ-13B
MTZJ-33B
MTZJ-3.6A
MTZJ-4.7C
CATHODE
ANODE
TLHK5190
FBIU4D7MA-B
RBV-406B
S1VB40
RBV-406B
S1VB40
CATHODE
ANODE
MTZJ-T-77-22
RD5.6ESB2
RD15ES-B2
RD39ES-B2
RD5.6ESB2
1SS119-25
1SS133T-77
RD5.6ESB2
RD15ES-B2
RD39ES-B2
RD5.6ESB2
1SS119-25
1SS133T-77
GS1B460/45
D2S4MTA1
BYV98-200-RAS 15/12
CATHODE
ANODE
D1NL20U
EGP20G
EL1Z
GP08D
UF4005PKG23
EGP20G
EL1Z
GP08D
UF4005PKG23
CATHODE
ANODE
BAS316-115
MMDL914T1
UDZSTE-176.2B
MMDL914T1
UDZSTE-176.2B
CATHODE
ANODE
- 50 -
3
1
2
+
-
REFERENCE
VOLTAGE
1
5
MUTE/STBY
PROTECTIONS
14
9
10
12
4
3
2
VOLUME
VOLUME
OP AMP
OP AMP
30K
30K
60K
5-5 IC BLOCK DIAGRAMS
4
3
2
6
7
1
5
Vsense
Remote
DVLD
Internal
OFF
Latch
Centre
Osc
SS
F/B
Timer
TSD
OCP
Control
Logic
Level
Shift
Sel=34v
ref 5v
15v/8v
Driver
Reg. 10v
18
8
14
16
15
10
12
11
9
A BOARD IC6202/IC6205 BA033T/BA12T
G BOARD IC6001 MCZ3001D
A BOARD IC2500 TDA7497
- 51 -
DFP
60
59
56
57
SBUS Interface
IDENT
A/D
SCART Switching Facilities
A/D
D/A
D/A
D/A
D/A
D/A
D/A
I2C Interface
25
23
65
68
1
3
4
5
7
6
48
50
51
47
30
34
31
28
33
37
36
DEMODULATOR
A BOARD IC2000 MSP3411G
1
5
4
3
8
7
2
6
9
G BOARD IC6003 SE135N-LF4
FLYBACK
GENERATOR
THERMAL
PROTECTION
2
6
3
5
4
7
1
POWER
AMPLIFIER
+
-
A BOARD IC5400 STV9379
1
2
3
7
5
-
+
-
+
6
A BOARD IC5301/IC5302 LA6393DLL
A BOARD IC5300 LM358N
1
2
3
4
6
5
7
8
+
+
-
-
SECTION 6
EXPLODED VIEWS
NOTE :
Items with no part number and no description are not
stocked because they are seldom required for routine
service.
The construction parts of an assembled part are indicated
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.
6-1. CHASSIS
REF.NO.
PART.NO
DESCRIPTION
REMARK
REF.NO.
PART.NO
DESCRIPTION
REMARK
- 52 -
1 *A-1647-043-A H2 BOARD, COMPLETE
2
2
*A-1646-243-A H1 BOARD, COMPLETE
3 *A-1625-000-A F4 BOARD, COMPLETE
4
4
*4-206-097-01 F4, H1 BRACKET
5 £
1-571-433-21 SWITCH, PUSH (AC POWER)
6
*4-202-531-01 AC CORD LOCK (SC)
7 £
1-783-083-11 CORD, POWER (WITH FILTER)
(KV-28FX68B/28FX68E)
£ 1-776-860-11 POWER CORD, FILTER (UK) (KV-28FX68U)
8
£ 1-776-860-11 POWER CORD, FILTER (UK) (KV-28FX68U)
8
*4-206-106-05 BRACKET, MAIN
9
*A-1300-179-A G BOARD, COMPLETE
10
1-424-855-11 COIL, CHOKE 29MMH
11 8-598-535-20 FRONTEND BTF-EF411(KV-28FX68B)
8-598-533-10 FRONTEND BTF-EC411(KV-28FX68E)
8-598-529-10 FRONTEND BTF-EU611(KV-28FX68U)
8-598-533-10 FRONTEND BTF-EC411(KV-28FX68E)
8-598-529-10 FRONTEND BTF-EU611(KV-28FX68U)
12
*A-1300-287-A M BOARD, COMPLETE
13 *A-1300-302-A A BOARD, COMPLETE (KV-28FX68B)
*A-1300-175-A A BOARD, COMPLETE (KV-28FX68E)
*A-1300-301-A A BOARD, COMPLETE (KV-28FX68U)
14 £ 1-453-383-11 TRANSFORMER ASSY FLYBACK (NX-4522//Z214)
15 *A-1300-176-A D BOARD, COMPLETE
16 4-039-358-01 SCREW (4X16), (+) BV TAPPING
17 1-529-408-11 SPEAKER (4.2X24CM)
18 A-1678-192-E WOOFER COMPLETE ASSY 19-20
19
*A-1300-175-A A BOARD, COMPLETE (KV-28FX68E)
*A-1300-301-A A BOARD, COMPLETE (KV-28FX68U)
14 £ 1-453-383-11 TRANSFORMER ASSY FLYBACK (NX-4522//Z214)
15 *A-1300-176-A D BOARD, COMPLETE
16 4-039-358-01 SCREW (4X16), (+) BV TAPPING
17 1-529-408-11 SPEAKER (4.2X24CM)
18 A-1678-192-E WOOFER COMPLETE ASSY 19-20
19
1-529-417-11 SPEAKER (8CM)
20 7-685-648-79 SCREW (3X12), TYPE2 IT-3
21 *4-205-700-32 REAR COVER
22 7-685-663-71 SCREW +BVTP 4X16 TYPE2 IT-3
21 *4-205-700-32 REAR COVER
22 7-685-663-71 SCREW +BVTP 4X16 TYPE2 IT-3
18
UK Models only
22
21
14
13
12
11
15
19
20
16
17
17
16
1
2
3
4
5
6
7
8
9
10
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