DOWNLOAD Sony KLV-20S400A / KLV-32S400A / KLV-37S400A / KLV-40S400A Service Manual ↓ Size: 4.9 MB | Pages: 45 in PDF or view online for FREE

Model
KLV-20S400A KLV-32S400A KLV-37S400A KLV-40S400A
Pages
45
Size
4.9 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-20s400a-klv-32s400a-klv-37s400a-klv-40s400a.pdf
Date
PREV: Sony KLV-32W400A / KLV-40W400A / KLV-46W400A / KLV-52W400A Service Manual

Sony KLV-20S400A / KLV-32S400A / KLV-37S400A / KLV-40S400A Service Manual ▷ View online

KLV-20/32/37/40S400A (CH)     7
1-2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
5
*
* : Note that this differs from entering the service mode (volume +)
2 times
4 times
5 times
LED ON  0.3 sec.
LED OFF 0.3 sec.
LED OFF
2 sec. 
[ FLASH COUNT ]
Note: One flash counts is not self-diagnostic.
< KLV-32/37/40S400A >
< KLV-20S400A >
1-3. STOPPING THE STANDBY FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY LED from flashing.
1-4. SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to
bring up past occurrences of failure for confirmation on the screen:
1-4-1. To Bring Up Screen Test
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
1-5. Quitting Self-diagnostic screen
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
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)
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