Read Sony KV-XA25M50 Service Manual online
MODEL
COMMANDER
DEST.
CHASSIS NO.
CHASSIS
TRINITRON
®
COLOR TV
SERVICE MANUAL
BG-3R
MODEL
COMMANDER DEST.
CHASSIS NO.
KV-XA25M50
RM-954
India
SCC-U60F-A
KV-XA25M80
RM-954
India
SCC-U60F-A
KV-XA29M50
RM-954
India
SCC-U60C-A
KV-XA29M80
RM-954
India
SCC-U60C-A
KV-XA29M90
RM-954
Hong Kong SCC-U50E-A
KV-XA29N90
RM-914
Philippines SCC-U61C-A
KV-XA29N90
RM-914
Taiwan
SCC-U54D-A
(KV-XA25M50/XA25M80)
(KV-XA29M50/XA29M80/
XA29M90/XA29N90)
RETURN
MENU
PIC MODE
WAKE UP
SOUND
MODE
SLEEP
CABLE
AUTO
PROGRAM
ADD/
ERASE
FAVORITE
SURROUND
MTS
MUTING
DISPLAY
POWER
VIDEO
TV
1
2
5
8
7
4
0
3
9
6
1
4
7
-/--
2
5
8
0
3
6
9
FAVORITE
SOUND
MODE
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
RM-914
RM-954
– 2 –
KV-XA25M50/XA25M80/XA29M50
RM-954
KV-XA29M80/XA29M90/XA29N90
RM-954
RM-914
SPECIFICATIONS
(KV-XA25M50/XA25M80/XA29M50/XA29M80/XA29M90)
Note
Power requirements
110-240 V AC, 50/60 Hz
Except KV-XA29M90
220-240 V AC, 50/60 Hz
KV-XA29M90 only
Power consumption (W) Indicated on the rear of the TV
Television system
B/G, I, D/K, M
Color system
PAL, PAL 60, SECAM, NTSC4.43, NTSC3.58
Stereo/Bilingual system
NICAM Stereo/Bilingual B/G, I, DK; A2 Stereo/Bilingual B/G
KV-XA29M90 only
Channel coverage
B/G
VHF: E2 to E12 / UHF: E21 to E69 / CATV: S01 to S03, S1 to S41
I
UHF: B21 to B68 / CATV: S01 to S03, S1 to S41
D/K
VHF: C1 to C12, R1 to R12 / UHF: C13 to C57, R21 to R60
CATV: S01 to S03, S1 to S41, Z1 to Z39
CATV: S01 to S03, S1 to S41, Z1 to Z39
M
VHF: A2 to A13 / UHF: A14 to A79 /
CATV: A-8 to A-2, A to W+4, W+6 to W+84
CATV: A-8 to A-2, A to W+4, W+6 to W+84
˘
(Antenna)
75-ohm external terminal
Audio output (Speaker)
8W + 8W
Number of terminal
D (Video)
Input: 4*
Output: 1 * Three input lines available
Phono jacks; 1 V
P-P
, 75 ohms
≥
(Audio)
Input: 4*
Output: 1 * Three input lines available
Phono jacks; 500 mVrms
(S Video)
Input: 2
Y : 1 Vp-p, 75 ohms,
unbalanced, sync negative
C : 0.286 Vp-p, 75 ohms
unbalanced, sync negative
C : 0.286 Vp-p, 75 ohms
(Component Video) Input: 1
Phono jacks
Y : 1 Vp-p, 75 ohms,
sync negative
C
Y : 1 Vp-p, 75 ohms,
sync negative
C
B
: 0.7 Vp-p, 75 ohms
C
R
: 0.7 Vp-p, 75 ohms
Audio : 500 mVrms
2
(Headphones)
Output: 1
Stereo minijack
Picture tube
25 inch
29 inch
Tube size (cm)
64
72
Measured diagonally
Screen size (cm)
60
68
Measured diagonally
Dimension (w/h/d, mm)
696 x 513x 500
722 x 576 x 516
Mass (kg)
38
51
Design and specifications are subject to change without notice.
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.
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.
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.
– 3 –
KV-XA25M50/XA25M80/XA29M50
RM-954
KV-XA29M80/XA29M90/XA29N90
RM-954
RM-914
SPECIFICATIONS
(KV-XA29N90)
Note
Power requirements
110-240 V AC, 50/60 Hz
Philippines only
110 V AC, 60 Hz
Taiwan only
Power consumption (W) Indicated on the rear of the TV
Television system
M
Color system
NTSC3.58, PAL*, PAL 60*, SECAM*, NTSC4.43*
*AV IN only
Stereo/Bilingual system
MTS
Channel coverage
VHF: 2 to 13 / UHF: 14 to 69 / CATV: 1 to 125
˘
(Antenna)
75-ohm external terminal
Audio output (Speaker)
8W + 8W
Number of terminal
D (Video)
Input: 4*
Output: 1 * Three input lines available
Phono jacks; 1 V
P-P
, 75 ohms
≥
(Audio)
Input: 4*
Output: 1 * Three input lines available
Phono jacks; 500 mVrms
(S Video)
Input: 2
Y : 1 Vp-p, 75 ohms,
unbalanced, sync negative
C : 0.286 Vp-p, 75 ohms
unbalanced, sync negative
C : 0.286 Vp-p, 75 ohms
(Component Video) Input: 1
Phono jacks
Y : 1 Vp-p, 75 ohms,
sync negative
C
Y : 1 Vp-p, 75 ohms,
sync negative
C
B
: 0.7 Vp-p, 75 ohms
C
R
: 0.7 Vp-p, 75 ohms
Audio : 500 mVrms
2
(Headphones)
Output: 1
Stereo minijack
Picture tube
29 inch
Tube size (cm)
72
Measured diagonally
Screen size (cm)
68
Measured diagonally
Dimension (w/h/d, mm)
722 x 576 x 516
Mass (kg)
51
Design and specifications are subject to change without notice.
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.
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.
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.
– 4 –
KV-XA25M50/XA25M80/XA29M50
RM-954
KV-XA29M80/XA29M90/XA29N90
RM-954
RM-914
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
SELF DIAGNOSTIC FUNCTION .....................
5
1. GENERAL ........................................................
8
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 59
2-2. Speaker Removal .................................................... 59
2-3. Chassis Assy Removal ............................................ 59
2-4. F Bracket Removal .................................................. 60
2-5. Service Position ...................................................... 60
2-6. Replacement Of Parts ............................................. 60
2-2. Speaker Removal .................................................... 59
2-3. Chassis Assy Removal ............................................ 59
2-4. F Bracket Removal .................................................. 60
2-5. Service Position ...................................................... 60
2-6. Replacement Of Parts ............................................. 60
2-6-1. Light Guide .................................................. 60
2-6-2. Power Button ................................................ 60
2-6-2. Power Button ................................................ 60
2-7. J and J1 Boards Removal ........................................ 60
2-8. Terminal Bracket Removal ..................................... 60
2-9. D3 Board Removal .................................................. 60
2-10. B1 Board Removal .................................................. 60
2-11. H Board Removal .................................................... 60
2-12. A and B Boards Removal ....................................... 60
2-13. Picture Tube Removal ............................................. 62
2-8. Terminal Bracket Removal ..................................... 60
2-9. D3 Board Removal .................................................. 60
2-10. B1 Board Removal .................................................. 60
2-11. H Board Removal .................................................... 60
2-12. A and B Boards Removal ....................................... 60
2-13. Picture Tube Removal ............................................. 62
3. ADVANCE OPERATION
3-1. "RESET" FUNCTION ............................................ 63
4. SET-UP ADJUSTMENTS
4-1. Beam Lading ........................................................... 64
4-2. CONVERGENCE ................................................... 65
4-3. Focus Adjustment .................................................... 67
4-4. G2 (SCREEN) AND white balance adjustments ... 68
4-2. CONVERGENCE ................................................... 65
4-3. Focus Adjustment .................................................... 67
4-4. G2 (SCREEN) AND white balance adjustments ... 68
5. CIRCUIT ADJUSTMENTS
5-1. Adjustment With Commander ................................ 69
5-2. Adjustment Method ................................................ 69
5-3. Picture Quality Adjustments ................................... 80
5-4. Display position Adjustment .................................. 80
5-5. Deflection Adjustment ............................................ 81
5-6. H-Trapezoid Adjustment ......................................... 81
5-7. A Board Adjustment After IC003 Replacement .... 81
5-8. Picture Distortion Adjustment ................................ 82
5-2. Adjustment Method ................................................ 69
5-3. Picture Quality Adjustments ................................... 80
5-4. Display position Adjustment .................................. 80
5-5. Deflection Adjustment ............................................ 81
5-6. H-Trapezoid Adjustment ......................................... 81
5-7. A Board Adjustment After IC003 Replacement .... 81
5-8. Picture Distortion Adjustment ................................ 82
6. DIAGRAMS
6-1. Block Diagram ........................................................ 83
6-2. Circuit Boards Location .......................................... 84
6-3. Schematic Diagram ................................................. 84
6-2. Circuit Boards Location .......................................... 84
6-3. Schematic Diagram ................................................. 84
(1) Schematic Diagrams of H Board ...................... 87
(2) Schematic Diagram of A Board ........................ 89
(3) Schematic Diagram of B Board ...................... 105
(4) Schematic Diagrams of C6 and B1 Boards .... 113
(5) Schematic Diagrams of VM1, J and F Boards ... 115
(2) Schematic Diagram of A Board ........................ 89
(3) Schematic Diagram of B Board ...................... 105
(4) Schematic Diagrams of C6 and B1 Boards .... 113
(5) Schematic Diagrams of VM1, J and F Boards ... 115
6-4. Voltage Measurement ........................................... 123
6-5. Waveforms ............................................................ 133
6-6. Printed Wiring Boards and Parts Location ........... 135
6-7. Semiconductors ..................................................... 151
6-5. Waveforms ............................................................ 133
6-6. Printed Wiring Boards and Parts Location ........... 135
6-7. Semiconductors ..................................................... 151
7. EXPLODED VIEWS
7-1. Picture tube ........................................................... 153
7-2. Chassis ................................................................... 155
7-2. Chassis ................................................................... 155
8. ELECTRICAL PARTS LIST ..........................
157