Sony KV-21FX250 Service Manual ▷ View online
TRINITRON
®
COLOR TELEVISION
SERVICE MANUAL
BX-1S
CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
CHASSIS NO.
9-883-750-01
KV-21FX250
RM-YA005 LATIN
AMERICA
SCC-V66Q-A
KV-21FX250A
RM-YA005 ARGENTINA
SCC-V86A-A
KV-21FX250C
RM-YA005 CHILE
SCC-V66R-A
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 5/2007
REVISION
DATE
SUBJECT
5/2007
No revisions or updates are applicable at this time.
TRINITRON
®
COLOR TELEVISION
SERVICE MANUAL
BX-1S
CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
CHASSIS NO.
9-883-750-01
KV-21FX250
RM-YA005 LATIN
AMERICA
SCC-V66Q-A
KV-21FX250A
RM-YA005 ARGENTINA
SCC-V86A-A
KV-21FX250C
RM-YA005 CHILE
SCC-V66R-A
Self Diagnosis
Supported model
KV-21FX250
RM-YA005
KV-21FX250/21FX250A/21FX250C
KV-21FX250/21FX250A/21FX250C
3
TABLE OF CONTENTS
SECTION TITLE
PAGE
Specifi cations ....................................................................................................................................................................................................... 4
Warnings and Cautions ........................................................................................................................................................................................ 5
Safety Check-Out ................................................................................................................................................................................................. 6
Self-Diagnostic Function ...................................................................................................................................................................................... 7
SECTION 1: DISASSEMBLY ............................................................................................................................................................................................. 9
1-1. Rear Cover Removal .................................................................................................................................................................................... 9
1-2. Chassis Assembly Removal ......................................................................................................................................................................... 9
1-3. Service Position .......................................................................................................................................................................................... 10
1-4. Picture Tube Removal .................................................................................................................................................................................11
Anode Cap Removal Procedure ..................................................................................................................................................................11
SECTION 2: SET-UP ADJUSTMENTS ............................................................................................................................................................................ 12
2-1. Beam Landing ............................................................................................................................................................................................ 12
2-2. Convergence .............................................................................................................................................................................................. 13
2-3. Focus .......................................................................................................................................................................................................... 14
2-4. Screen (G2) ................................................................................................................................................................................................ 15
SECTION 3: CIRCUIT ADJUSTMENTS .......................................................................................................................................................................... 16
3-1. Remote Adjustment Buttons and Indicators ............................................................................................................................................... 16
3-2. Accessing the Service Menu Mode ............................................................................................................................................................ 17
3-3. Confi rming Service Adjustment Changes ................................................................................................................................................... 18
3-4. White Balance Adjustments ........................................................................................................................................................................ 18
3-5. Picture Quality Adjustments ....................................................................................................................................................................... 18
3-6. Service Data ............................................................................................................................................................................................... 20
SECTION 4: DIAGRAMS ................................................................................................................................................................................................. 29
4-1. Circuit Boards Location .............................................................................................................................................................................. 29
4-2. Printed Wiring Board and Schematic Diagram Information ........................................................................................................................ 29
4-3. Block Diagram ............................................................................................................................................................................................ 30
Signal Flow Block Diagram ........................................................................................................................................................................ 30
4-4. Schematics and Supporting Information .................................................................................................................................................... 31
A Board Schematic Diagram (1 of 6) ......................................................................................................................................................... 31
A Board Schematic Diagram (2 of 6) ......................................................................................................................................................... 32
A Board Schematic Diagram (3 of 6) ......................................................................................................................................................... 33
A Board Schematic Diagram (4 of 6) ......................................................................................................................................................... 34
A Board Schematic Diagram (5 of 6) ......................................................................................................................................................... 35
A Board Schematic Diagram (6 of 6) ......................................................................................................................................................... 36
CV Board Schematic Diagram ................................................................................................................................................................... 38
H1 Board Schematic Diagram ................................................................................................................................................................... 40
4-5. Semiconductors .......................................................................................................................................................................................... 41
SECTION 5: EXPLODED VIEWS .................................................................................................................................................................................... 42
5-1. Chassis, Picture Tube and Speakers ......................................................................................................................................................... 42
SECTION 6: ELECTRICAL PARTS LIST ........................................................................................................................................................................ 43
KV-21FX250/21FX250A/21FX250C
KV-21FX250/21FX250A/21FX250C
4
SPECIFICATIONS
Television system
NTSC (KV-21FX250/21FX250C ONLY)
NTSC, PAL-M/PAL-N (KV-21FX250A ONLY)
NTSC, PAL-M/PAL-N (KV-21FX250A ONLY)
Channel coverage
VHF: 2-13/UHF: 14-69/CATV: 1-125
Picture tube
FD Trinitron
®
tube
Visible screen size
508.5 mm (20-inch) picture measured diagonally
Actual screen size
545 mm (21-inch) measured diagonally
Supplied Accessories
Remote Commander RM-YA005
Two Size AA (R6) Batteries
Two Size AA (R6) Batteries
1) 1 Vp-p 75 ohms unbalanced, sync negative
2) 500
mVrms (100% modulation), Impedance: 47 kilohms
3) This specifi cation is the maximum wattage.
Design and specifi cations are subject to change without notice.
Trademarks and Copyrights
Sony, FD Trinitron, WEGA
®
, Steady Sound and Intelligent Picture
are registered trademarks of Sony Corporation.
As an ENERGY STAR® Partner, Sony
Corporation has determined that this
product meets the ENERGY STAR®
guidelines for energy efficiency. ENERGY
STAR® is a U.S. registered mark.
KV-21FX250
KV-21FX250A
KV-21FX250C
Power Requirements
Number of Inputs/Outputs
Video
1)
4
4
Audio
2)
5
5
S Video
1
1
Speaker Output (W)
10W x 2
10W x 2
Power Consumption (W)
In Use (Max)
108W
108W
In Standby (Max)
3)
<1W
<1W
Dimensions (W x H x D)
mm
646 x 485 x 484 mm
646 x 485 x 484 mm
in
25
3/8
x 19
1/8
x 19
1/16
in
25
3/8
x 19
1/8
x 19
1/16
in
Mass
kg
26 kg
26 kg
lbs
57.5 lbs
57.5 lbs
120V AC, 60Hz
220V AC, 50/60Hz