Sony KV-21FK120 Service Manual ▷ View online
TRINITRON
®
COLOR TELEVISION
SERVICE MANUAL
BA-6
CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
CHASSIS NO.
9-965-980-01
KV-21FK120
RM-Y194
LATIN NORTH
SCC- S73H-A
Self Diagnosis
Supported model
KV-21FK120
RM-Y194
3
KV-21FK120
KV-21FK120
TABLE OF CONTENTS
SECTION TITLE
PAGE
Specifi cations ............................................................................................................................................................................. 4
Warnings and Cautions .............................................................................................................................................................. 5
Safety Check-Out ....................................................................................................................................................................... 6
Self-Diagnostic Function ............................................................................................................................................................. 7
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
1-2. Chassis Assembly Removal
............................................................................................................................................... 9
1-3. Service Position ............................................................................................................................................................... 10
1-4. Picture Tube Removal
1-4. Picture Tube Removal
.......................................................................................................................................................11
Anode
Cap
Removal
Procedure
.......................................................................................................................................11
Wire
Dressings
................................................................................................................................................................. 12
SECTION 2: SET-UP ADJUSTMENTS ............................................................................................................................................ 17
2-1. Beam Landing .................................................................................................................................................................. 17
2-2. Convergence
2-2. Convergence
.................................................................................................................................................................... 18
2-3. Focus ............................................................................................................................................................................... 19
2-4. Screen (G2)
2-4. Screen (G2)
...................................................................................................................................................................... 20
SECTION 3: SAFETY RELATED ADJUSTMENTS ......................................................................................................................... 21
3-1. X R565 Confi rmation Method (HV Hold-Down Confi rmation) and Readjustments ........................................................ 21
3-2. B+ Voltage Confi rmation and Adjustment ........................................................................................................................ 21
3-2. B+ Voltage Confi rmation and Adjustment ........................................................................................................................ 21
SECTION 4: CIRCUIT ADJUSTMENTS .......................................................................................................................................... 23
4-1. Remote Adjustment Buttons and Indicators ..................................................................................................................... 23
4-2. Accessing Service Adjustment Mode ............................................................................................................................... 23
4-3. White Balance Adjustments ............................................................................................................................................. 24
4-4. Memory Write Confi rmation Method ................................................................................................................................ 24
4-5. Service Data List .............................................................................................................................................................. 25
4-6. ID Map Table .................................................................................................................................................................... 33
4-7. A Board Adjustments
4-2. Accessing Service Adjustment Mode ............................................................................................................................... 23
4-3. White Balance Adjustments ............................................................................................................................................. 24
4-4. Memory Write Confi rmation Method ................................................................................................................................ 24
4-5. Service Data List .............................................................................................................................................................. 25
4-6. ID Map Table .................................................................................................................................................................... 33
4-7. A Board Adjustments
........................................................................................................................................................ 34
SECTION 5: DIAGRAMS ................................................................................................................................................................. 37
5-1. Circuit Boards Location .................................................................................................................................................... 37
5-2. Printed Wiring Board and Schematic Diagram Information .............................................................................................. 37
5-3. Block Diagram and Schematics ....................................................................................................................................... 38
5-2. Printed Wiring Board and Schematic Diagram Information .............................................................................................. 37
5-3. Block Diagram and Schematics ....................................................................................................................................... 38
A Board Schematic Diagram ............................................................................................................................................ 39
CV Board Schematic Diagram ......................................................................................................................................... 41
KR Board Schematic Diagram ......................................................................................................................................... 42
HK Board Schematic Diagram ......................................................................................................................................... 44
CV Board Schematic Diagram ......................................................................................................................................... 41
KR Board Schematic Diagram ......................................................................................................................................... 42
HK Board Schematic Diagram ......................................................................................................................................... 44
5-4. Semiconductors ............................................................................................................................................................... 45
SECTION 6: EXPLODED VIEWS .................................................................................................................................................... 46
6-1. Picture Tube ..................................................................................................................................................................... 46
6-2. Chassis ............................................................................................................................................................................ 47
6-2. Chassis ............................................................................................................................................................................ 47
SECTION 7: ELECTRICAL PARTS LIST ....................................................................................................................................... 48
4
KV-21FK120
KV-21FK120
SPECIFICATIONS
1) 1 Vp-p 75 ohms unbalanced, sync negative
2) Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative;
P
B
: 0.7 Vp-p, 75 ohms
P
R
: 0.7 Vp-p, 75 ohms
3) 500 mVrms (100% modulation), Impedance: 47 kilohms
4) This specifi cation is maximum wattage.
Television system
American TV standard, NTSC
Channel coverage
VHF: 2-13/ UHF: 14-69/ CATV: 1-125
Picture tube
FD Trinitron
®
tube
Visible screen size
20-inch picture measured diagonally
Actual screen size
21-inch measured diagonally
Antenna
75 ohm external terminal for VHF/UHF
Supplied Accessories
Remote Commander RM-Y194
Two Size AA (R6) Batteries
Antenna, Telescopic
Microphone
Converter
Cord with Connector
Video 2 Cable Adaptor
Microphone
Converter
Cord with Connector
Video 2 Cable Adaptor
Design and specifi cations are subject to change without notice.
KV-21FK120
Power Requirements
120V, 60Hz
Number of Inputs/Outputs
Video
1)
2
Y,P
B
, P
R
2)
1
Audio
3)
3
Microphone
2
Speaker Output (W)
10W x 2
Headphones
1
Power Consumption (W)
In Use (Max)
140W
In Standby (Max)
4)
1W
Dimensions (W x H x D)
mm
631 x 468 x 491 mm
in
24
7/8
x 18
3/8
x 19
1/4
in
Mass
kg
25.4 kg
lbs
56 lbs
En calidad de compañía asociada a ENERGY
STAR
®
, Sony ha determinado que este producto
cumple con las directrices de uso eficiente de
energía de ENERGY STAR
®
.
ENERGY STAR
®
es una marca registrada de
EEUU.
Fabricado bajo licencia de SRS Labs, Inc. WOW y los
símbolos SRS son marcas registradas de SRS Labs,
Inc.
símbolos SRS son marcas registradas de SRS Labs,
Inc.
Bajo licencia de BBE Sound, Inc. Licenciado de BBE
Sound, Inc. sobre el numero USP4638258, 5510752 y
5736897. BBE y el símbolo de BBE son marcas
registradas de BBE Sound, Inc.
Sound, Inc. sobre el numero USP4638258, 5510752 y
5736897. BBE y el símbolo de BBE son marcas
registradas de BBE Sound, Inc.
Sony, WEGA, FD Trinitron, Intelligent Picture y Steady Sound son
marcas comerciales de Corporación Sony.
5
KV-21FK120
KV-21FK120
WARNINGS AND CAUTIONS
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.
removing the anode.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of
this receiver is directly connected to the ac power line.
this receiver is directly connected to the ac power line.
!
SAFETY-RELATED COMPONENT WARNING!!
Components identifi ed 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 identifi ed in this manual. Follow these procedures
whenever critical components are replaced or improper operation is suspected.
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 identifi ed in this manual. Follow these procedures
whenever critical components are replaced or improper operation is suspected.