DOWNLOAD Sony KLV-40WE5 Service Manual ↓ Size: 2.63 MB | Pages: 33 in PDF or view online for FREE

Model
KLV-40WE5
Pages
33
Size
2.63 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-40we5.pdf
Date

Sony KLV-40WE5 Service Manual ▷ View online

REVISION HISTORY
NO.
SUFFIX
DATE
SUPP / CORR
DESCRIPTION
1
-01
2009/2
_ _
1st Issue
EX2L
CHASSIS
MODEL
KLV-40WE5
PART NO. : 
9-888-109-01
CHASSIS
LCD COLOR TV
SERVICE MANUAL
MODEL
COMMANDER
DEST.
KLV-40WE5
RM-GA015
ME
MODEL
COMMANDER
DEST.
RM-GA015
KLV-40WE5
EX2L
– 2 –
KLV-40WE5
RM-GA015
TABLE OF CONTENTS
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. Lead Free Information ................................................... 4
1-6. Attachment & Detachment of MDF61 Connector ........ 4
1-7. Attachment, Detachment & Confirmation of Lock
Condition of JST IBH Connector .................................. 4
1-8. Removal and Installation of Rear Cover Procedure ...... 6
1-9. Removal of Switch Unit Procedure ............................... 7
2. SELF DIAGNOSTIC FUNCTION
2-1. Overview of Control Buttons ......................................... 8
2-2. LED Display Specification ............................................ 8
2-3. LED Display Control ..................................................... 8
2-4. LED Pattern .................................................................... 8
2-5. Standby LED Error Display ........................................... 9
2-6. Triage Chart .................................................................. 10
3. TROUBLESHOOTING
3-1. Flow chart ..................................................................... 11
3-2. Board Replacement Order ............................................ 13
4. DISASSEMBLY ............................................................ 16
5. WIRE DRESSING ........................................................ 18
Section Title
Page
6. SERVICE ADJUSTMENTS
6-1. Viewing Service Adjustment Data ............................... 24
6-2. Accessing Service Adjustment Mode .......................... 24
6-3. Accessing Diagnostic Menu ........................................ 24
7. DIAGRAMS
7-1. Block Diagram ............................................................. 25
7-2. Connector Diagram ...................................................... 26
7-3. Circuit Board Location ................................................. 27
7-4. Schematic Diagram ...................................................... 28
7-5. Printed Wiring Boards .................................................. 28
7-6. Semiconductors ............................................................ 28
8. EXPLODED VIEWS ..................................................... 29
9. ELECTRICAL PARTS LIST ......................................... 31
OPERATING INSTRUCTIONS
Section Title
Page
– 3 –
KLV-40WE5
RM-GA015
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 Cord when replacing the backlight
(HCFL) 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.
8) Live chassis can cause electric shock as its
connected to the AC power line. Therefore, use
isolation transformer and gloves when changing parts
or removing plug. Please remember high voltage is
there during servicing.
9) To follow safety after servicing, please make sure
the removed screws, parts and wires are as original condition.
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' indication
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.
Page of 33
Display

Sony KLV-40WE5 Service Manual ▷ Download

  • DOWNLOAD Sony KLV-40WE5 Service Manual ↓ Size: 2.63 MB | Pages: 33 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KLV-40WE5 in PDF for free, which will help you to disassemble, recover, fix and repair Sony KLV-40WE5 TV. Information contained in Sony KLV-40WE5 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.