Sony KV-AW21M80A Service Manual ▷ View online
REVISION HISTORY
BX1S
MODEL
KV-AW21M80A
KV-AW21M91A
KV-AW21M91A
PART NO. :
9-872-964-01
CHASSIS
NO.
SUFFIX
DATE
SUPP / CORR
DESCRIPTION
1
-01
2007/04
_ _
1st Issue
TRINITRON
®
COLOR TV
RM-GA002
SERVICE MANUAL
BX1S
CHASSIS
MODEL
COMMANDER DEST.
CHASSIS NO.
KV-AW21M80A
RM-GA002
CKD, Russia
KV-AW21M91A
RM-GA002
CKD, Russia
MODEL
COMMANDER DEST.
CHASSIS NO.
– 2 –
KV-AW21M80A/AW21M91A
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.
A Board Removal ........................................................ 5
1-6.
H1 Board Removal ...................................................... 5
1-7.
Picture Tube Removal .................................................. 6
2. WIRE DRESSING
2-1.
Dress DGC with Cable Tie ........................................ 7
2-2.
Install Coating earth assy, Hook Spring,
Extension to Earth Coating Assy ............................... 7
Extension to Earth Coating Assy ............................... 7
2-3.
Insert DGC Connector to CN601(A PWB) ............... 8
2-4.
Dress AC Cord, Speaker Wire(R&L), DGC Wire
& Led Assy Earth with Purse Lock PA ..................... 8
& Led Assy Earth with Purse Lock PA ..................... 8
2-5.
Insert Connector DY to CNDY 1 (A PWB) .............. 8
2-6.
Dress Speaker Wire Under DGC ............................... 8
2-7.
Insert Earth Coating Assy to CN705 (C/CV PWB) .. 9
2-8.
Keep Away Lead Assy, G2 & Focus .......................... 9
2-9.
Dress AC Cord Wire to CRT Support Hook (Left) ... 9
2-10. Dress AC Cord Wire to Rail Guide Cover
Bottom (Left) ............................................................. 9
2-11. Dress Lead Assy, Speaker (Red, White + Blk)
to Loudspeaker ......................................................... 10
2-12. Dress DGC Conn is Kept Behind of DGC .............. 10
2-13. Dress Conn Assy 7P, Lead Assy Earth &
2-13. Dress Conn Assy 7P, Lead Assy Earth &
Lead Assy Jumper with Purse Lock Ø5 .................. 10
2-14. Dress Conn, Assy 7P, NS Coil, Lead Assy Earth &
Lead Assy Jumper with Purse Lock Ø5 .................. 10
2-15. Install HV Cable Combi, Holder to HV Lead
Assy (Anode Cap) .................................................... 11
2-16. Dress HV Holder To DGC (Top)(Left) with
Purse Lock Ø9 ......................................................... 11
2-17. Dress Connector DY & Connector Assy 5P
with Purse Lock Ø5 ................................................. 11
2-18. Dress ECA, Lead Assy G2 & Focus with
Purse Lock Ø5 ......................................................... 11
2-19. Dress Connector Assy 7P with Cable Tie ............... 12
2-20. Install CN001 (H PWB) to CN005 (A PWB) ......... 12
2-21. Dress AC Power Cord to Purse Lock(S)(DIA.8) .... 12
2-22. Insert Conn Assy 5P to C/CV PWB ........................ 12
2-23. Insert Conn Assy 7P to CN701 (C PWB) ............... 12
2-24. Insert Conn Assy 7P to CN701 (CV PWB) ............ 12
2-25. Dress Connector Assy 7P with Pin Lead (A705) .... 13
2-26. Dress Conn Assy 7P with Pin Lead to CV PWB .... 13
2-20. Install CN001 (H PWB) to CN005 (A PWB) ......... 12
2-21. Dress AC Power Cord to Purse Lock(S)(DIA.8) .... 12
2-22. Insert Conn Assy 5P to C/CV PWB ........................ 12
2-23. Insert Conn Assy 7P to CN701 (C PWB) ............... 12
2-24. Insert Conn Assy 7P to CN701 (CV PWB) ............ 12
2-25. Dress Connector Assy 7P with Pin Lead (A705) .... 13
2-26. Dress Conn Assy 7P with Pin Lead to CV PWB .... 13
2-27. Dress Conn Assy 4P with Pin Lead ......................... 13
2-28. Insert Lead Assy, Speaker to CN200 (APWB) ....... 13
2-29. Insert Conn AC Cord Power to CN602 (A PWB) ... 13
2-30. Dress AC Cord Conn & Speaker Wire (L) with
2-28. Insert Lead Assy, Speaker to CN200 (APWB) ....... 13
2-29. Insert Conn AC Cord Power to CN602 (A PWB) ... 13
2-30. Dress AC Cord Conn & Speaker Wire (L) with
Pin Lead (A016) ...................................................... 13
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing Adjustment ........................................ 14
3-2.
Convergence Adjustment ........................................... 14
3-3.
Focus Adjustment ...................................................... 16
3-4.
G2 (SCREEN) Adjustment ........................................ 16
3-5.
White Balance Adjustment ........................................ 16
4. CIRCUIT ADJUSTMENTS
4-1.
Adjustments With Commander ................................. 17
4-2.
Adjustment Method ................................................... 18
4-3.
Picture Quality Adjustment ....................................... 37
4-3-1. P MAX/Contrast Adjustment ......................... 37
4-3-2. Sub Color Adjustment .................................... 37
4-3-3. Sub Hue Adjustment ....................................... 37
4-3-4. Sub Bright Adjustment ................................... 37
4-3-1. P MAX/Contrast Adjustment ......................... 37
4-3-2. Sub Color Adjustment .................................... 37
4-3-3. Sub Hue Adjustment ....................................... 37
4-3-4. Sub Bright Adjustment ................................... 37
4-4.
Geometry Adjustment ................................................ 37
4-4-1. General Setting ............................................... 37
4-4-2. Pal 50Hz Normal Mode .................................. 38
4-4-1. General Setting ............................................... 37
4-4-2. Pal 50Hz Normal Mode .................................. 38
5. DIAGRAMS
5-1.
Block Diagram ........................................................... 39
5-2.
Circuit Boards Location ............................................ 40
5-3.
Schematic Diagram Information ............................... 40
5-3-1. A Board — (Block 001) .................................. 41
5-3-2. A Board — (Block 002) .................................. 43
5-3-3. A Board — (Block 003) .................................. 45
5-3-4. A Board — (Block 004) .................................. 47
5-3-5. A Board — (Block 005) .................................. 49
5-3-6. A Board — (Block 006) .................................. 51
5-3-7. A Board — (Block 007) .................................. 53
5-3-8. CV Board Schematic Diagram ....................... 54
5-3-9. H1 Board Schematic Diagram ........................ 55
5-3-1. A Board — (Block 001) .................................. 41
5-3-2. A Board — (Block 002) .................................. 43
5-3-3. A Board — (Block 003) .................................. 45
5-3-4. A Board — (Block 004) .................................. 47
5-3-5. A Board — (Block 005) .................................. 49
5-3-6. A Board — (Block 006) .................................. 51
5-3-7. A Board — (Block 007) .................................. 53
5-3-8. CV Board Schematic Diagram ....................... 54
5-3-9. H1 Board Schematic Diagram ........................ 55
5-4.
Voltage Measurement and Waveforms ...................... 56
5-5.
Printed Wiring Boards ............................................... 59
5-6.
Semiconductors .......................................................... 62
6. EXPLODED VIEWS
6-1.
Chassis ....................................................................... 64
7. ELECTRICAL PARTS LIST ............................................ 66
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.
THE 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-AW21M80A/AW21M91A
RM-GA002
The units in this manual contain a self diagnostic function. If an error occurs, the STANDBY (1) indicator will automatically
begin to flash. The number of times the STANDBY (1) 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 (1) 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 errors occurs, the STANDBY (1) indicator will flash a set 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 diagnosis items are displayed on screen. No error has occurred if the screen displays a "0".
SELF DIAGNOSTIC FUNCTION
Diagnosis
Item
Description
No Power
+B overcurrent
(OCP)
(OCP)
V-Protect (OVP)
IK (AKB)
Power supply
NG (+5V) for
Video Processor
NG (+5V) for
Video Processor
No. of timer
STANDBY (1)
indicator flashes
Does not light
2 times
4 times
5 times
8 times
Diagnostic Result
on screen display
on screen display
–
2:0
or
2:1 ~ 255
4:0
or
4:1 ~ 255
5:0
or
5:1 ~ 255
8:0
or
8:1 ~ 255
Probable Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out (F600)
A board.
• H OUT (Q805) is shorted.
(A board)
• IC751 is shorted. (CV board)
• +13V is not supplied.
(A board)
• IC804 is faulty. (A board)
• Video OUT (IC751) is
faulty. (CV board)
• IC001 is faulty. (A board)
• Screen (G2) is improperly
• Screen (G2) is improperly
adjusted.
• IC604 faulty.
• IC602 faulty.
• IC602 faulty.
Detected
Symptoms
• Power does not turn on.
• No power is supplied on
• No power is supplied on
TV.
• AC Power supply is faulty.
• Power does not turn 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 shorted.
• 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.
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