Sony KV-SW293M50 Service Manual ▷ View online
REVISION HISTORY
BX1L
MODEL
KV-SW293M50
PART NO. :
9-872-928-0
2
CHASSIS
NO.
SUFFIX
DATE
SUPP / CORR
DESCRIPTION
1 -01 2006/8 _ _ 1st Issue
2 -02 2006/12 Supp-1 Add Operating Instruction KV-SW293M50
(Page 73)
TRINITRON
®
COLOR TV
SERVICE MANUAL
BX1L
CHASSIS
MODEL
COMMANDER DEST.
CHASSIS NO.
RM-GA002
MODEL
COMMANDER DEST.
CHASSIS NO.
KV-SW293M50
RM-GA002
Vietnam
SCC-V34R-A
– 2 –
KV-SW293M50
RM-GA002
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ................................... 3
1. DISASSEMBLY
1-1.
Rear Cover Removal .................................................... 5
1-2.
Speaker Removal ......................................................... 5
1-3.
Chassis Assy Removal ................................................. 5
1-4.
Service Position ........................................................... 5
1-5.
Terminal Bracket Removal .......................................... 5
1-6.
F1 Board Removal ....................................................... 5
1-7.
H4 Board Removal ...................................................... 6
1-8.
A Board Removal ........................................................ 6
1-9.
Picture Tube Removal .................................................. 6
2. SET-UP ADJUSTMENTS
2-1.
Beam Landing Adjustment .......................................... 8
2-2.
Convergence Adjustment ............................................. 9
2-3.
Focus Adjustment ...................................................... 11
2-4.
G2 (SCREEN) Adjustments ...................................... 11
2-5.
White Balance Adjustment ........................................ 11
3. CIRCUIT ADJUSTMENTS
3-1.
Adjustment With Commander ................................... 12
3-2.
Adjustment Method ................................................... 13
3-3.
Picture Quality Adjustments ...................................... 28
3-3-1. P Max/Contrast Adjustment ........................... 28
3-3-2. Sub Color Adjustment .................................... 28
3-3-3. Sub Hue Adjustment ....................................... 28
3-3-4. Sub Bright Adjustment ................................... 29
3-3-1. P Max/Contrast Adjustment ........................... 28
3-3-2. Sub Color Adjustment .................................... 28
3-3-3. Sub Hue Adjustment ....................................... 28
3-3-4. Sub Bright Adjustment ................................... 29
3-4.
Geometry Adjustment ................................................ 29
3-4-1. H-Trapezoid Adjustment ................................ 29
3-4-2. Normal Mode 50Hz/60Hz .............................. 29
3-4-3. Wide Mode 50Hz/60Hz .................................. 29
3-4-1. H-Trapezoid Adjustment ................................ 29
3-4-2. Normal Mode 50Hz/60Hz .............................. 29
3-4-3. Wide Mode 50Hz/60Hz .................................. 29
4. DIAGRAMS
4-1.
Block Diagram ........................................................... 30
4-2.
Circuit Boards Location ............................................ 31
4-3.
Schematic Diagram Information ............................... 31
4-3-1. A Board — (Block 001) .................................. 32
4-3-2. A Board — (Block 002) .................................. 34
4-3-3. A Board — (Block 003) .................................. 36
4-3-4. A Board — (Block 004) .................................. 38
4-3-5. A Board — (Block 005) .................................. 40
4-3-6. A Board — (Block 006) .................................. 42
4-3-7. A Board — (Block 007) .................................. 44
4-3-8. CV Board Schematic Diagram ....................... 45
4-3-9. H4 Board Schematic Diagram ........................ 47
4-3-10. H5 Board Schematic Diagram ...................... 48
4-3-11. F1 Board Schematic Diagram ...................... 50
4-3-1. A Board — (Block 001) .................................. 32
4-3-2. A Board — (Block 002) .................................. 34
4-3-3. A Board — (Block 003) .................................. 36
4-3-4. A Board — (Block 004) .................................. 38
4-3-5. A Board — (Block 005) .................................. 40
4-3-6. A Board — (Block 006) .................................. 42
4-3-7. A Board — (Block 007) .................................. 44
4-3-8. CV Board Schematic Diagram ....................... 45
4-3-9. H4 Board Schematic Diagram ........................ 47
4-3-10. H5 Board Schematic Diagram ...................... 48
4-3-11. F1 Board Schematic Diagram ...................... 50
4-4.
Voltage Measurement and Waveforms ...................... 51
4-5.
Printed Wiring Boards ............................................... 55
4-6.
Semiconductors .......................................................... 59
5. EXPLODED VIEWS
5-1.
Picture Tube and Speaker Bracket ............................ 61
5-2.
Chassis ....................................................................... 62
6. ELECTRICAL PARTS LIST ......................................... 63
OPERATING INSTRUCTIONS
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.
Section
Title
Page
Section
Title
Page
– 3 –
KV-SW293M50
RM-GA002
Diagnosis
Item
Description
• No Power
• +B overcurrent
(OCP)
• Vertical NG.
• IK (AKB)
• Supply Voltage
Protection
Detected
Symptoms
• Power does not come on.
• No power is supplied to the
• No power is supplied to the
TV.
• AC power supply is faulty.
• Power does not come on.
• Load on power line is
• Load on power line is
shorted.
• Has entered standby state
after horizontal raster.
• Vertical deflection pulse is
stopped.
• Power line is shorted or
power supply is stopped.
• No raster is generated.
• CRT cathode current
• CRT cathode current
detection reference pulse
output is small.
output is small.
• No power supply to CRT
ANODE.
• No RASTER is generated.
SELF DIAGNOSTIC FUNCTION
No. of times
STANDBY
Indicator flashes
Does not light
2 times
4 times
5 times
8 times
Diagnostic Result
on screen display
—
2:0
2:1 ~ 255
4:0
4:1 ~ 255
5:0
5:1 ~ 255
8:0
8:1 ~ 255
Probable
Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out (F4601)
(F Board)
• H.OUT (Q511) is shorted.
(A board)
• IC751 is shorted.
(C/CV Board)
• +13V is not supplied.
(A Board)
• IC503 voltage list is faulty.
(A Board)
• Video OUT is faulty.
• IC001 is faulty. (A Board)
• Screen (G2) is improperly
• IC001 is faulty. (A Board)
• Screen (G2) is improperly
adjusted.
• IC604 faulty.
• IC607 faulty.
• IC607 faulty.
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY Indicator will automatically
begin to flash.
The number of times the STANDBY Indicator flashes translates to a probable source of the problem.If an error symptom
cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to
reveal past problems and how often these problems occur.
begin to flash.
The number of times the STANDBY Indicator flashes translates to a probable source of the problem.If an error symptom
cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to
reveal past problems and how often these problems occur.
1. DIAGNOSTIC TEST INDICATORS
When an error occurs, the STANDBY Indicator will flash a number of times to indicate the possible cause of the
problem. If there is more than one error, the Indicator will identify the first of the problem areas.
problem. If there is more than one error, the Indicator will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen. No error has occured if the screen displays a “0”.
2. STANDBY INDICATOR BLINKING PROCESS
The example above represents for 4 times blink
Lamp OFF 3 seconds
Lamp ON 300ms
Lamp OFF 300ms
3. STANDBY INDICATOR ON TV FRONT PANEL
Standby indicator