Sony KLV-20S400A / KLV-32S400A / KLV-37S400A / KLV-40S400A Service Manual ▷ View online
KLV-20/32/37/40S400A (CH) 8
TABLE OF CONTENTS
SAFETY CHECK-OUT ............................................. 5
SELF DIAGNOSIS FUNCTION ................................ 6
1. DISASSEMBLY ............................................... 1-1
1-1.
KLV-32S400A ....................................................... 1-1
1-1-1.
REAR COVER ASSY AND STAND ASSY
REMOVAL ...................................................... 1-1
1-1-2.
BG1 BOARD REMOVAL .............................. 1-2
1-1-3.
GP BOARD REMOVAL ................................. 1-2
1-1-4.
FRAME REMOVAL ....................................... 1-3
1-1-5.
SPEAKER AND HG4 BOARD
REMOVAL ...................................................... 1-4
1-1-6.
LCD PANEL REMOVAL ............................... 1-4
1-2.
KLV-37S400A ....................................................... 1-5
1-2-1.
REAR COVER ASSY AND STAND ASSY
REMOVAL ...................................................... 1-5
1-2-2.
BG1 BOARD REMOVAL .............................. 1-6
1-2-3.
POWER UNIT REMOVAL ............................ 1-6
1-2-4.
FRAME REMOVAL ....................................... 1-7
1-2-5.
SPEAKER REMOVAL ................................... 1-8
1-2-6.
LCD PANEL AND HG4 BOARD
REMOVAL ...................................................... 1-8
1-3.
KLV-40S400A ....................................................... 1-9
1-3-1.
REAR COVER ASSY AND STAND ASSY
REMOVAL ...................................................... 1-9
1-3-2.
BG1 AND IP5 BOARDS REMOVAL .......... 1-10
1-3-3.
AC INLET AND UNDER COVER
REMOVAL .................................................... 1-10
1-3-4.
FRAME REMOVAL ..................................... 1-11
1-3-5.
SPEAKER REMOVAL ................................. 1-12
1-3-6.
LCD PANEL AND HG4 BOARD
REMOVAL .................................................... 1-12
1-4.
KLV-20S400A ..................................................... 1-13
1-4-1.
REAR COVER, STAND ASSY AND H1S
BOARD REMOVAL ..................................... 1-13
1-4-2.
BG1 BOARD REMOVAL ............................ 1-13
1-4-3.
GD BOARD AND BOTTOM FRAME
REMOVAL .................................................... 1-14
1-4-4.
INVERTER BOARD AND LCD BRACKET
REMOVAL .................................................... 1-15
1-4-5.
SPEAKER AND H3S BOARD
REMOVAL .................................................... 1-16
1-4-6.
LCD PANEL REMOVAL ............................. 1-16
2. DIAGRAMS ..................................................... 3-1
2-1.
BLOCK DIAGRAM .............................................. 3-1
2-2.
CIRCUIT BOARDS LOCATION ......................... 3-2
(1)
KLV-32S400A ................................................. 3-2
(2)
KLV-37S400A ................................................. 3-2
(3)
KLV-40S400A ................................................. 3-2
(4)
KLV-20S400A ................................................. 3-2
3. EXPLODED VIEWS ........................................ 3-1
3-1.
KLV-32S400A ....................................................... 3-2
3-1-1.
REAR COVER ASSY AND STAND ASSY .. 3-2
3-1-2.
CHASSIS-1 ...................................................... 3-3
3-1-3.
CHASSIS-2 ...................................................... 3-4
3-2.
KLV-37S400A ....................................................... 3-5
3-2-1.
REAR COVER ASSY AND STAND ASSY .. 3-5
3-2-2.
CHASSIS-1 ...................................................... 3-6
3-2-3.
CHASSIS-2 ...................................................... 3-7
3-3.
KLV-40S400A ....................................................... 3-8
3-3-1.
REAR COVER ASSY AND STAND ASSY .. 3-8
3-3-2.
CHASSIS-1 ...................................................... 3-9
3-3-3.
CHASSIS-2 .................................................... 3-10
3-4.
KLV-20S400A ..................................................... 3-11
3-4-1.
REAR COVER ASSY AND STAND
ASSY .............................................................. 3-11
3-4-2.
CHASSIS-1 .................................................... 3-12
3-4-3.
CHASSIS-2 .................................................... 3-13
3-5.
PACKING MATERIALS .................................... 3-14
3-5-1.
KLV-32S400A ............................................... 3-14
3-5-2.
KLV-37S400A ............................................... 3-15
3-5-3.
KLV-40S400A ............................................... 3-16
3-5-4.
KLV-20S400A ............................................... 3-17
KLV-20/32/37/40S400A (CH) 1-1
1-1. KLV-32S400A
1-1-1. REAR COVER ASSY AND STAND ASSY REMOVAL
SECTION 1
DISASSEMBLY
1
Three screws
(+PSW M5X16)
4
One screw
(+PSW M5X16)
5
Two screws
(+PSW M3X5)
3
Eleven screws
(+BVTP2 4X16)
3
Five screws
(+BVTP2 4X16)
6
Two screws
(+BV 3X12)
2
Stand assy
7
Rear cover assy
8
Switch unit
KLV-20/32/37/40S400A (CH) 1-2
KLV-32S400A
1-1-2. BG1 BOARD REMOVAL
Claw
Claw
2
Connector assy
14p+20p
1
Bracket side jack
assy
3
Four screws
(+BVST 3X8)
6
Two screws
(+BVST 3X8)
3
Three screws
(+BVST 3X8)
4
BG1 board
7
Main bracket assy
5
One screw
(+BV 3X12)
1-1-3. GP BOARD REMOVAL
1
One screw
(+PSW M4X8)
3
One screw
(+PSW M4X8)
5
Two screws
(+PSW 3SG)
8
Two screws
(+PSW M4X8)
5
Three screws
(+PSW 3SG)
6
GP board
7
G1 bracket
4
VESA frame
(bottom)
2
VESA frame
(bottom)
9
Vesa frame (top)
KLV-20/32/37/40S400A (CH) 1-3
KLV-32S400A
1-1-4. FRAME REMOVAL
1
Power supply
cord
7
Two screws
(+PSW M4X8)
qa
Two screws
(+PSW M4X8)
2
Two screws
(+BVST 3X8)
q;
Two screws
(+BVTP2 4X16)
qa
Two screws
(+PSW M4X8)
5
One screw
(+BVTP2 4X16)
8
One screw
(+BVTP2 4X16)
4
One screw
(+PSW M4X8)
7
One screw
(+PSW M4X8)
4
Two screws
(+PSW M4X8)
9
Spine frame (R)
assy
6
Spine frame (L)
assy
3
Under cover
qs
Bottom frame
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