DOWNLOAD Sony KLV-32V400A / KLV-32V400B Service Manual ↓ Size: 3.21 MB | Pages: 54 in PDF or view online for FREE

Model
KLV-32V400A KLV-32V400B
Pages
54
Size
3.21 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-32v400a-klv-32v400b.pdf
Date

Sony KLV-32V400A / KLV-32V400B Service Manual ▷ View online

REVISION HISTORY
NO.
SUFFIX
DATE
SUPP / CORR
DESCRIPTION
1
-01
2008/4
_ _
1st Issue
2
-02
2008/7
SUPP-1
New model addition 
(Page 31)
3
-03
2008/7
CORR-1
Service Adjustment changes
(Page 18)(Page 19)(Page20)
4
-04
2008/8
SUPP-2
Part number change 
(Page 40)
5
-05
2008/8
SUPP-3
Part Information Change:
REAR COVER PART NUMBER 
(Page 41)
6
-06
2008/8
SUPP-4
Supplement (Wall Mount) Addition 
(Page 42)
7
-07
2008/9
SUPP-5
Part Information Change:
1. H4 Change to H4K 
(Page 44)
2. H3E Part number Change 
(Page 44)
8
-08
2008/10
CORR-2
1. Exploded View Changes 
(Page 23)(Page 24)
    
(Page 25)(Page 27) (Page 28)
2. Electrical Parts List Changes 
(Page 29)
(Page 30)
9
-09
2008/11
CORR-3
Changes in Standby LED Error Displa
(Page 6)
10
-10
2008/12
SUPP-6
New model addition 
(Page 45)
EG1L(GA)
CHASSIS
MODEL
KLV-32V400A
PART NO. : 
9-872-994-10
CHASSIS
LCD COLOR TV
SERVICE MANUAL
MODEL
COMMANDER
DEST.
KLV-32V400A
RM-GA011
E, EA, India, Iran,
ME, Philippines,
Saudi Arabia,
South Africa,
Thailand, Vietnam
KLV-32V400A/R
RM-GA011
E, EA, ME,
(Metal Red)
Philippines,
Saudi Arabia,
South Africa,
Thailand
KLV-32V400A/T
RM-GA011
E, EA, ME,
(Mat Brown)
Philippines,
Saudi Arabia,
South Africa
MODEL
COMMANDER
DEST.
EG1L(GA)
RM-GA011
KLV-32V400A/W
RM-GA011
E, EA, ME,
(Pearl White)
Philippines,
Saudi Arabia,
South Africa,
Thailand
KLV-32V400B
RM-GA011
Saudi Arabia,
Thailand
– 2 –
KLV-32V400A, V400B
RM-GA011
TABLE OF CONTENTS
Section Title
Page
Section Title
Page
1. SAFETY NOTES
1-1. Caution Handling of LCD Panel ..................................... 3
1-2. Safety Check Out ............................................................. 3
1-3. Leakage Test .................................................................... 3
1-4. WARNING ! .................................................................... 3
1-5. LED Free Information ..................................................... 4
2. SELF DIAGNOSTIC FUNCTION
2-1. Overview of Control Buttons .......................................... 5
2-2. LED Display Specification .............................................. 5
2-3. LED Display Control ....................................................... 5
2-4. LED Pattern ..................................................................... 5
2-5. Standby LED Error Displays .......................................... 6
3. DISASSEMBLY
3-1. Rear Cover Removal ........................................................ 7
3-2. Stand Assy Removal ........................................................ 7
3-3. Switch Unit Removal ...................................................... 8
3-4. GP Board and G1 Bracket Removal ............................... 9
3-5. BG1 Board & Bracket Removal .................................... 10
3-6. Vesa Frame Removal ..................................................... 11
3-7. H4, H3E Board and Speaker Bracket Removal ............ 12
3-8. LCD Panel and Bezel Assy Removal ............................ 13
4. WIRE DRESSING
4-1-1. Wire dressing overview for Non-CISPR model ........ 14
4-1-2. Wire dressing overview for CISPR model ................ 14
4-1-3. Dress LVDS cable with Sheet Core C (2X)
as shown ..................................................................... 14
4-1-4. i) Dress LVDS cable with Sheet Core C &
Shield Tape as shown
ii) Screw LVDS cable's clamp on main bracket
as shown ................................................................ 14
4-1-5. Dress Connector Assy 13P at G1 bracket's hook ...... 15
4-1-6. Dress Connector Assy 14P + 20P at G1
bracket's hook(5X) ..................................................... 15
4-1-7. Dress Connector Assy 14P + 20P with slide
clamp(2X) .................................................................. 15
4-1-8. Dress Connector Assy 14P + 20P on top of
Connector Assy 13P ................................................... 15
4-1-9. Dress Connector Assy 14P + 20P & Speaker wire
with sheet core C(2X) ................................................ 15
4-1-10.i) Dress Speaker wire and Connector assy 14P + 20P
with Sheet Core C & Slide clamp
ii) Dress Speaker Wire with LCD tape ...................... 15
4-1-11.Dress Speaker Wire(L) with LCD tape(2X) ............. 16
4-1-12.Dress Connector Assy 14P + 20P with LCD tape .... 16
4-1-13.Install AC Cord Holder on AC Power Cord .............. 16
4-1-14.Install AC Cord Holder on AC Power Cord .............. 16
4-1-15.i) Screw Connector Assy 1P on BG1 Main Bracket
ii) Put Connector Assy 1P underneath
Speaker Wire ......................................................... 17
5. SERVICE ADJUSTMENTS
5-1. Accessing Diagnostic Menu .......................................... 18
5-2. Aging ............................................................................ 18
5-3. Accessing Service Menu ............................................... 18
5-4. Resetting the User Menu- Factory Reset ...................... 19
5-5. White Balance Adjustment ............................................ 19
5-6. Board and Panel Replacement ...................................... 20
6. DIAGRAMS
6-1. Block Diagram ............................................................... 21
6-2. Circuit Board Location .................................................. 21
6-3. Schematic Diagram ....................................................... 22
6-4. Printed Wiring Boards ................................................... 22
6-5. Semiconductor ............................................................... 22
7. EXPLODED VIEWS
7-1. Rear Cabinet and Stand Assy ........................................ 23
7-2. Frame and Cover ........................................................... 24
7-3. Chassis-1 ........................................................................ 25
7-4. Chassis-2 ........................................................................ 26
7-5. H3E & H4 Boards and Speaker .................................... 27
7-6. Bezel Assy and LCD Panel ........................................... 28
8. ELECTRICAL PARTS LIST
.............................................. 29
OPERATING INSTRUCTIONS
– 3 –
KLV-32V400A, V400B
RM-GA011
1-1. Caution Handling of LCD Panel
When installing the LCD Panel, make sure you are grounded
with a wrist band.
When installing the LCD Panel on the wall, the panel must be
secured using the 4 mounting holes on the rear cover.
1) Do not press the panel or frame edge to avoid the risk of
electric shock.
2) Do not scratch or press on the panel with any sharp
objects.
3) Do not leave the module in high temperature or in areas of
high humidity for an extended period of time.
4) Do not expose the LCD panel to direct sunlight.
5) Avoid contact with water. It may cause short circuit within
the module.
6) Disconnect the AC adapter when replacing the backlight
(CCFL) or inverter circuit. (High voltage occurs at the inverter
circuit at 650Vrms)
7) Always clean the LCD panel with a soft cloth material.
8) Use care when handling the wires or connectors of the
inverter circuit. Damaging the wires may cause a short circuit.
9) Protect the panel from ESD to avoid damaging the elec-
tronic circuit (C-MOS).
1-2. Safety Check-Out
After correcting the original service problem, perform the
following safety checks before releasing the set to the
customer:-
1) Check the area of your repair for unsoldered or poorly
soldered connections. Check the entire board surface for
solder splashes and bridges.
2) Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.
3)Check all control knobs, shields, covers, ground straps and
mounting hardware have been replaced. Be absolutely certain
you have replaced all the insulators.
4) Look for unauthorized replacement parts, particularly
transistors that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
5) Look for parts which, though functioning show obvious
signs of deterioration. Point them out to the customer and
recommend their replacement.
6) Check the line cords for cracks and abrasion.
Recommend the replacement of any such line cord to the
customer.
7) Check the antenna terminals, metal trim, "metallized"
knobs, screws and all other exposed metal parts for AC
leakage. Check leakage test as described next.
1-3. Leakage Test
The AC leakage from any exposed metal part to earth
ground and from all exposed metal parts to any exposed
metal part having a return to chassis must not exceed 0.5mA
(500 microamperes). Leakage current can be measured by
any one of the three methods:-
1. A commercial leakage tester such as the SIMPSON 229
or RCA WT-540A. Follow the manufacturers instructions to
use those instructions.
2. A battery-operated AC milliampmeter. The DATA
PRECISION 245 digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means
of a VOM or battery operated AC voltmeter. The 'limit' indica-
tion is 0.75V so analog meters must have an accurate low
voltage scale. The SIMPSON'S 250 and SANWA SH-63TRD
are examples of passive VOMs that are suitable. Nearly all
battery operated digital multimeters that have a 2 VAC range
are suitable. (see FIGURE 1)
1.5 k
0.15 
µ
F
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SECTION 1
SAFETY NOTES
Figure 1. AC voltmeter to check AC leakage
1-4. WARNING !
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY SHADING AND MARK 
!
ON THE EXPLODED VIEWS ARE CRITICAL FOR SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE
CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN
THIS MANUAL. FOLLOW THESE PROCEDURES
WHENEVER CRITICAL COMPONENTS ARE REPLACED
OR IMPROPER OPERATION IS SUSPECTED.
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Sony KLV-32V400A / KLV-32V400B Service Manual ▷ Download

  • DOWNLOAD Sony KLV-32V400A / KLV-32V400B Service Manual ↓ Size: 3.21 MB | Pages: 54 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KLV-32V400A / KLV-32V400B in PDF for free, which will help you to disassemble, recover, fix and repair Sony KLV-32V400A / KLV-32V400B TV. Information contained in Sony KLV-32V400A / KLV-32V400B Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.