DOWNLOAD Sony KV-XA29K90 Service Manual ↓ Size: 5.65 MB | Pages: 85 in PDF or view online for FREE

Model
KV-XA29K90
Pages
85
Size
5.65 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-xa29k90.pdf
Date

Sony KV-XA29K90 Service Manual ▷ View online

MODEL
COMMANDER
DEST.
CHASSIS NO.
TRINITRON 
®
 
COLOR TV
SERVICE MANUAL
BG3R
MODEL
COMMANDER   DEST.
CHASSIS NO.
KV-XA29K90
RM-914
Korea
SCC-U58D-A
CHASSIS
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
– 2 –
KV-XA29K90
RM-914
SPECIFICATIONS
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.
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.
Note
Power requirements
110-220 V AC, 60 Hz
Power consumption (W) Indicated on the rear of the TV
Television system
M
Color system
NTSC3.58
Stereo/Bilingual system
Korean Stereo
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
VIDEO
Input: 4* Output: 1
Phono jacks; 1 V
P-P
, 75 ohms
* Three input lines available
AUDIO
Input: 4* Output: 1
Phono jacks; 500 mVrms
* Three input lines available
S VIDEO
Input: 2
Y : 1 Vp-p, 75 ohms,
unbalanced, sync
negative
C :0.286 Vp-p, 75 ohms
Component Video
Input: 1
Phono jacks
(DVD) IN
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 in.
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.
– 3 –
KV-XA29K90
RM-914
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
SELF DIAGNOSTIC FUNCTION .....................
4
1. GENERAL ........................................................
7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 23
2-2. Speaker Removal .................................................... 23
2-3. Chassis Assy Removal ............................................ 23
2-4. F Bracket Removal .................................................. 23
2-5. Service Position ...................................................... 23
2-6. Replacement Of Parts ............................................. 23
2-6-1. Light Guide .................................................. 23
2-6-2. Power Button ................................................ 23
2-7. HV Cap Block, PWB Holder and J Board Removal24
2-8. Terminal Bracket Removal ..................................... 24
2-9. D3 Board Removal .................................................. 24
2-10. H Board Removal .................................................... 24
2-11. A and B Boards Removal ....................................... 24
2-12. Picture Tube Removal ............................................. 25
3. ADVANCE OPERATION
3-1. "RESET" FUNCTION ............................................ 26
4. SET-UP ADJUSTMENTS
4-1. Beam Landing ......................................................... 27
4-2. CONVERGENCE ................................................... 28
4-3. Focus Adjustment .................................................... 30
4-4. G2 (SCREEN) AND white balance adjustments ... 31
5. CIRCUIT ADJUSTMENTS
5-1. Adjustment With Commander ................................ 32
5-2. Adjustment Method ................................................ 32
5-3. Picture Quality Adjustments ................................... 37
5-4. Display position Adjustment .................................. 37
5-5. Deflection Adjustment ............................................ 37
5-6. H-Trapezoid Adjustment ......................................... 38
5-7. A Board Adjustment After IC003 Replacement .... 38
5-8. Picture Distortion Adjustment ................................ 39
6. DIAGRAMS
6-1. Block Diagram ........................................................ 41
6-2. Circuit Boards Location .......................................... 43
6-3. Schematic Diagram ................................................. 44
(1) Schematic Diagrams of F, J and VM1 Boards .. 45
(2) Schematic Diagram of A Board ........................ 47
(3) Schematic Diagram of B Board ........................ 63
(4) Schematic Diagrams of C6 and D3 Boards ...... 65
(5) Schematic Diagrams of B1 and H Boards ........ 67
6-4. Voltage Measurement ............................................. 69
6-5. Waveforms .............................................................. 73
6-6. Printed Wiring Boards and Parts Location ............. 74
6-7. Semiconductors ....................................................... 81
7. EXPLODED VIEWS
7-1. Picture tube ............................................................. 83
7-2. Chassis ..................................................................... 84
8. ELECTRICAL PARTS LIST ............................
85
– 4 –
KV-XA29K90
RM-914
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automati-
cally begin to flash.
The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/
TIMER lamp flash indicators is listed in the instruction manual for the user’s knowledge and reference. 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/TIMER lamp will flash a set number of times to indicate the possible cause of
the problem. If there is more than one error, the lamp 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”.
Diagnostic
Item
Description
• Power does not
turn on
• +B overcurrent
(OCP) or
overvoltage
(OVP)
• Vertical
deflection
stopped
• Horizontal
deflection
overdrive
• White balance
failure (no
PICTURE)
• Micro reset
Detected
Symptoms
• Power does not come on.
• No power is supplied to
the TV.
• AC power supply is faulty.
• Power does not come on.
• 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
detection reference pulse
output is small.
• Power is shut down
shortly, after this return
back to normal.
• Detect Micro latch up.
Note 1: If a + B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously.
The symptom that is diagnosed first by the microcontroller is displayed on the screen.
Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.
* R(Q703), G(Q702) or B(Q701) out is faulty (C6 board).
SELF DIAGNOSTIC FUNCTION
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
5 times
Self-diagnostic
display/Diagnostic
result
002:000 or
002:001~255
003:001~255
004:001~255
at the same time
005:000 or
005:001~225
101:00 or
101:001~225
Probable
Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out F4601
(F)
• H.OUT Q511 is shorted.
(A board)
• Q701, Q702, Q703 is
shorted (C6 board)
• -13V is not supplied.
(A board)
• IC 503 faulty (A board)
• G2 is improperly adjusted.
(Note 2)
• CRT problem.
• R(Q703), G(Q702) or
B(Q701) out is faulty
(C6 board)
• IC301 is faulty. (A board)
• No connection A board to
C6 board.
• Discharge CRT (C6 Board)
• Static discharge
• External noise
Page of 85
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Sony KV-XA29K90 Service Manual ▷ Download

  • DOWNLOAD Sony KV-XA29K90 Service Manual ↓ Size: 5.65 MB | Pages: 85 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KV-XA29K90 in PDF for free, which will help you to disassemble, recover, fix and repair Sony KV-XA29K90 TV. Information contained in Sony KV-XA29K90 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.