Sony KLV-32S310A / KLV-37S310A Service Manual ▷ View online
REVISION HISTORY
NO.
SUFFIX
DATE
SUPP / CORR
DESCRIPTION
1
-01
2007/8
_ _
1st Issue
2
-02
2008/1
Supp-1
Delete Cover Rear (32) information, code change to
Unstocked (KLV-32") only (Page
Unstocked (KLV-32") only (Page
68
)
WAX3
CHASSIS
MODEL
KLV-32S310A
KLV-37S310A
KLV-37S310A
PART NO. :
9-872-985-02
CHASSIS
LCD COLOR TV
SERVICE MANUAL
WAX3
MODEL
COMMANDER
DEST.
KLV-32S310A
RM-GA008
E
KLV-32S310A
/S
RM-GA008 E
(Silver)
KLV-32S310A
RM-GA008 India
KLV-32S310A
RM-GA008 Middle East
KLV-32S310A
/S
RM-GA008 Middle East
(Silver)
KLV-32S310A
RM-GA008 Oceania
KLV-32S310A
RM-GA008 Thailand
KLV-32S310A
/S
RM-GA008
Thailand
(Silver)
KLV-32S310A
RM-GA008 Saudi Arabia
KLV-32S310A
/S
RM-GA008
Saudi Arabia
(Silver)
KLV-32S310A
RM-GA008 Vietnam
MODEL
COMMANDER
DEST.
KLV-37S310A
RM-GA008
E
KLV-37S310A
/S
RM-GA008 E
(Silver)
KLV-37S310A
RM-GA008 India
KLV-37S310A
RM-GA008 Middle East
KLV-37S310A
/S
RM-GA008
Middle East
(Silver)
KLV-37S310A
RM-GA008 Oceania
KLV-37S310A
RM-GA008
Thailand
KLV-37S310A
RM-GA008
Saudi Arabia
KLV-37S310A
/S
RM-GA008
Saudi Arabia
(Silver)
KLV-37S310A
RM-GA008
Vietnam
RM-GA008
KLV-37S310A
KLV-32S310A
– 2 –
KLV-32
, 32/S,
37
, 37/S
S310A
RM-GA008
TABLE OF CONTENTS
Safety Check Out/Leakage Test
............................................ 3
Caution Handling
...................................................................... 4
Lead free information
............................................................... 4
Self Diagnostic Function
........................................................ 5
1. DISASSEMBLY
1-1.
Rear Cover Removal .................................................... 7
1-2.
Vesa Bracket Assembly Removal ................................ 8
1-3.
H1 Board Removal .................................................... 10
1-4.
U1 Board Removal .................................................... 11
1-5.
G1V and D5 Boards Removal (KLV-32S310A) ....... 12
1-6.
G5 Board Removal (KLV-37S310A) ........................ 13
1-7.
DTT Shield, UT and BG2 Boards Removal ............. 14
1-8.
Inlet, AC (with noise filter) Cover,
under (M) and LCD Bracket Bottom Removal ......... 15
under (M) and LCD Bracket Bottom Removal ......... 15
1-9.
Speaker, H3S and H4S Boards Removal .................. 17
1-10. LCD Panel Removal .................................................. 18
2. WIRE DRESSING
2-1.
(KLV-32S310A) ....................................................... 20
2-2.
(KLV-37S310A) ....................................................... 23
3. SERVICE ADJUSTMENTS
3-1.
How to enter Service Mode ....................................... 28
3-2.
Signal Level Adjustment ........................................... 28
3-3.
Gamma Adjustment ................................................... 30
3-4.
White Balance Adjustment ........................................ 31
3-5.
Panel Replacement ..................................................... 32
3-6.
Board Replacement .................................................... 32
Section
Title
Page
Section
Title
Page
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
!
ON THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.
4. DIAGRAMS
4-1.
Block Diagrams ......................................................... 33
4-2.
Circuit Boards Location ............................................ 35
4-3.
Schematic Diagrams Information .............................. 35
4-3-1. BG2, G1V & G5 Boards
Schematic Diagram .............................................. 36
4-3-2. D5 Board Schematic Diagram ........................ 37
4-3-3. H1 Board Schematic Diagram ........................ 39
4-3-4. H3S Board Schematic Diagram ...................... 40
4-3-5. H4S Board Schematic Diagram ...................... 42
4-3-6. U1 Board Schematic Diagram ........................ 43
4-3-7. UT Board Schematic Diagram ....................... 45
4-3-1. BG2, G1V & G5 Boards
Schematic Diagram .............................................. 36
4-3-2. D5 Board Schematic Diagram ........................ 37
4-3-3. H1 Board Schematic Diagram ........................ 39
4-3-4. H3S Board Schematic Diagram ...................... 40
4-3-5. H4S Board Schematic Diagram ...................... 42
4-3-6. U1 Board Schematic Diagram ........................ 43
4-3-7. UT Board Schematic Diagram ....................... 45
4-4.
Voltage Measurement and Waveforms ...................... 47
4-5.
Printed Wiring Boards ............................................... 49
4-6.
Semiconductors .......................................................... 53
5. EXPLODED VIEWS
............................................................ 54
6. ELECTRICAL PARTS LIST
.............................................. 64
OPERATING INSTRUCTIONS
– 3 –
KLV-32, 32/S, 37, 37/S S310A
RM-GA008
WARNING!!
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
!
ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS
AND IN THE PARTS LIST 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.
AND IN THE PARTS LIST 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.
USE CAUTION WHEN HANDLING THE LCD PANEL
When installing the LCD panel, be sure you are grounded by using a
wrist band.
When installing the LCD panel on the wall, the LCD panel must be
secured using the 4 mounting holes on the rear cover.
wrist band.
When installing the LCD panel on the wall, the LCD panel must be
secured using the 4 mounting holes on the rear cover.
1). do not press on 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 temperatures 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 a 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 cere when handling the wires or connectors of the inverter
circuit. Damaging the wires may cause a short.
9). protect the panel from ESD to avoid damaging the electronic circuit
(C-MOS).
shock.
2). do not scratch or press on the panel with any sharp objects.
3). do not leave the module in high temperatures 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 a 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 cere when handling the wires or connectors of the inverter
circuit. Damaging the wires may cause a short.
9). protect the panel from ESD to avoid damaging the electronic circuit
(C-MOS).
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
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.
and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and
mounting hardware have been replaced. Be absolutely certain
that you have replaced all the insulators.
that 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.
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.
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 as described below.
leakage as described below.
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 0.5 mA (500 microamperes). Leakage current
can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
all exposed metal parts to any exposed metal part having a return to
chassis, must not exceed 0.5 mA (500 microamperes). Leakage current
can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instructions.
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 0.75
V, 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 A).
V, 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 A).
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground