Sony TRINITRON KV-XG29M30 User manual

REVISION HISTORY BG-3S
MODEL
KV-XG29M30
KV-XG29M50
KV-XG29M50
KV-XG29M50
KV-XG29M60
KV-XG29M80
PA RT N O. : 9-965-777-02
NO DATE DESCRIPTION OF REVISION
6.2001 Serial number for XG29M60(S), chassis change from
BG3S to BG3R, (P. 148)
CHASSIS
1
KV-XG29M81
KV-XG29M90

CHASSIS
TRINITRON ® COLOR TV
SERVICE MANUAL BG-3S
MODEL COMMANDER DEST. CHASSIS NO.
KV-XG29M30 RM-952 Australia SCC-U23D-A
KV-XG29M50 RM-952 GE SCC-U12S-A
KV-XG29M50 RM-952 Malaysia SCC-U21L-A
KV-XG29M50 RM-952 Thailand SCC-U18R-A
KV-XG29M60 RM-952 Thailand SCC-U18S-A
KV-XG29M80 RM-952 ME SCC-U30S-A
MODEL COMMANDER DEST. CHASSIS NO.
KV-XG29M81 RM-952 ME SCC-U30R-A
KV-XG29M90 RM-952 Hong KongSCC-U17N-A

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KV-XG29M30/XG29M50/XG29M60/
KV-XG29M80/XG29M81/XG29M90
RM-952
SPECIFICATIONS
Note
Power requirements 110-220 V AC, 50/60 Hz GE/ME Model
220-240 V AC, 50/60 Hz Except GE/ME Model
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; KV-XG29M30/XG29M60/
A2 Stereo/Bilingual (German) B/G XG29M90 only
Teletext language English, Arabic, French KV-XG29M81 only
Channel coverage
B/G VHF : E2 to E12
UHF : E21 to E69
CATV : S01 to S03, S1 to S41
VHF : 0 to 12, 5A, 9A Australia only
UHF : 28 to 69
CATV : S01 to S03, S1 to S41
IUHF : 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
MVHF : A2 to A13
UHF : A14 to A79
CATV : A-8 to A-2, A to W+4, W+6 to W+84
˘˘
˘˘
˘(Antenna) 75-ohm external terminal
Audio output 5W + 5W
Number of terminal
(Video) Input: 2 Output: 1 Phono jacks; 1 VP-P, 75 ohms
Audio Input: 2 Output: 1 Phono jacks; 500 mVrms
2(Headphone) Output: 1 Minijack
Picture tube 29 inch
Tube size (cm) 72 Measured diagonally
Screen size (cm) 68 Measured diagonally
Dimension (w/h/d, mm) 794 ×573 ×517
Mass (kg) 48
Design and specifications are subject to change without notice.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK !ON
THE SCHEMATIC DIAGRAMS,EXPLODEDVIEWS AND INTHE
PARTS LIST ARE CRITICALTO 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 CAPTO THE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.

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KV-XG29M30/XG29M50/XG29M60/
KV-XG29M80/XG29M81/XG29M90
RM-952
TABLE OF CONTENTS
Section Title Page
SELF DIAGNOSIS FUNCTION................................ 4
1. GENERAL........................................................................ 8
2. DISASSEMBLY
2-1. Rear Cover Removal ................................................ 23
2-2. Speaker Removal ..................................................... 23
2-3. Chassis Assy Removal ............................................. 23
2-4. Service Position ....................................................... 23
2-5. Replacement of Parts ............................................... 24
2-5-1. Replacement of Control Button ..................................... 24
2-5-2. Replacement of Light Guide .......................................... 24
2-6. V1 Board Removal .................................................. 24
2-7. D3 Board Removal .................................................. 24
2-8. Terminal Bracket Removal ...................................... 25
2-9. H2 Board Removal .................................................. 25
2-10. A and B6 Boards Removal ...................................... 25
2-11. Picture Tube Removal.............................................. 26
3. SET-UP ADJUSTMENTS
3-1. Beam Landing .......................................................... 27
3-2. Convergence............................................................. 28
3-3. Focus Adjustment .................................................... 30
3-4. G2 (Screen) and White Balance Adjustments......... 31
4. CIRCUIT ADJUSTMENT
4-1. Adjustments with Commander ................................ 32
4-2. Adjustment Method ................................................. 33
4-3. Picture Quality Adjustments.................................... 38
4-4. A Board Adjustment After IC003 (Memory)
Replacement............................................................. 38
4-5. Picture Distortion Adjustment ................................. 39
Section Title Page
5. DIAGRAMS
5-1. Block Diagram ......................................................... 41
5-2. Frame Schematic Diagram ...................................... 44
5-3 Circuit Boards Location .......................................... 47
5-4. Schematic Diagrams and Printed Wiring Boards ... 48
(1) Schematic Diagram of A (1/2) Board...................... 51
(2) Schematic Diagram of A (2/2) Board...................... 55
(3) Schematic Diagrams of C6 and VM1 Boards ............ 59
(4) Schematic Diagrams of B6 and B2 Boards............. 63
(5) Schematic Diagrams of H2 and V1 Boards ............ 71
(6) Schematic Diagram of D3 Board ............................ 75
5-5. Semiconductors........................................................ 77
6. EXPLODEDVIEWS
6-1. Speaker Bracket ....................................................... 80
6-2. Chassis ..................................................................... 81
6-3. Picture Tube ............................................................. 82
7. ELECTRICAL PARTS LIST....................................... 83

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KV-XG29M30/XG29M50/XG29M60/
KV-XG29M80/XG29M81/XG29M90
RM-952
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically
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. DIAGNOSTICTEST 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.
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 F8601
(B6)
• H.OUT Q511 is shorted.(A
board)
• IC701 is shorted.(C6 board)
• -13V is not supplied. (A
board)
• IC 503 faulty (A board)
• G2 is improperly adjusted.
(Note 2)
• CRT problem.
• Video OUT IC701 is faulty.
(C6 board)
• IC301 is faulty. (A board)
• No connection A board to
C6 board.
• Discharge CRT (C6 Board)
• Static discharge
• External noise

– 5 –
KV-XG29M30/XG29M50/XG29M60/
KV-XG29M80/XG29M81/XG29M90
RM-952
2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
Diagnostic Item Flash Count*
+B overcurrent/overvoltage 2 times
Vertical deflection stopped
White balance failure 5 times
* One flash count is not used for self-diagnostic.
3. STOPPINGTHE STANDBY/TIMER FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER lamp
from flashing.
Lamp ON 0.3 sec. Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
2 times
5 times
STANDBY/SLEEP lamp

–6 –
KV-XG29M30/XG29M50/XG29M60/
KV-XG29M80/XG29M81/XG29M90
RM-952
4. SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as “power sometimes shuts off”or “screen sometimes goes out”that cannot be confirmed, it
is possible to bring up past occurances of failure for confirmation on the screen:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[Screendisplay] /channel [5] /Sound volume [-] /Power ON
˘
Note that this differs from entering the service mode (mode volume [+]).
Self-Diagnosis screen display
002 : 000
003 : 000
004 : 000
005 : 001
Numeral "0" means that no fault has been detected.
Numeral "1" means a fault has been detected.
101 : 000
SELF DIAGNOSTIC
5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen
during repairs. When you have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after
completion of the repairs.
[Clearing the result display]
To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the diagnostic
screen is being displayed.
Channel [8] /0
[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

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KV-XG29M30/XG29M50/XG29M60/
KV-XG29M80/XG29M81/XG29M90
RM-952
6. SELF-DIAGNOSTIC CIRCUIT
[+BovercurrentªOCPº] Occurs when an overcurrent on the +B(135) line is detected by Q604. If Q604 go to ON
and the voltage to pin 18 of IC301 should go down when V.SYNC is more than seven
verticals in a period, the unit will automatically turn off.
[Verticaldeflectionstopped] Occurs when an absence of the vertical deflection pulse is detected by Q509 and IC001
shut down the power supply.
[Verticaldeflectionovercurrent] Occurs when an overcurrent on V drive line is detected by Q507. Power supply will be
shut down when detect this by IC001.
[ hitebalancefailure] If the RGB levels* do not balance or become low level within 5 seconds, this error will be
detected by IC301.TV will stay on, but there will be no picture.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
IC301
Y/CHROMA JUNGLE
FROM
CRT
FROM
[+B] Q604 C6
[V] Q509/507
IC001
SYSTEM IC003 MEMORY
B-DAT
IO-SDAT
IK-IN
MP/
PROTECT
IO-8DAT
O-LED
SDA
54521
18 51
4635

– 8 –
KV-XG29M30/XG29M50/XG29M60/ KV-XG29M80/XG29M81/XG29M90
RM-952
SECTION 1
GENERAL
The operating instructions mentioned here are partial abstracts
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remain as in the manual.
2
WARNING
• Dangerously high voltages are present inside the TV.
• Operate the TV only between 110 – 240 V AC (For GE and ME). (For Australia,
Thailand, Hong Kong and Malaysia only: 220 – 240 V AC).
To prevent fire or shock hazard, do not expose
the TV to rain or moisture.
Do not operate the TV if any liquid or solid object
falls into it. Have it checked immediately by
qualified personnel only.
Do not open the cabinet and the rear cover of the
TV. Refer servicing to qualified personnel.
Do not install the TV in hot, humid or excessively
dusty places.
Do not install the TV in a confined space, such
as a bookcase or built-in cabinet.
Do not block the ventilation openings of the TV.
Pull the power cord out by the plug. Do not pull
the power cord itself. Disconnect the TV if you
are not going to use it for several days.
Install the TV in a stable position. Do not allow
children to climb onto it.
Do not plug in too many appliances to the same
power socket. Do not damage the power cord.
Clean the TV with a dry and soft cloth.
Do not use benzine, thinner, or any other chemicals
to clean the TV. Do not scratch the picture tube.
For your own safety, do not touch any part of the
TV, the power cord and the antenna cable during
lightning storms.
Using Your New TV
4
Getting Started
Step 1
Connect the antenna (* Antenna cable is not
supplied for Thailand model).
If you wish to connect a VCR, see the “Connecting a VCR”diagram below.
Using Your New TV
IEC connector
(not supplied)
To video and
audio outputs
VCR
(yellow)
-L (MONO)
(white)
-R (red)
Antenna cable (not supplied)
Audio/Video cable
(not supplied)
To antenna
output
Rear of TV
Rear of TV
Connecting a VCR
To watch the video, press …(see page 12).
: Signal flow
VIDEO
VIDEO IN
VIDEO OUT
AUDIO
RL
To ˘
(antenna)
To …1 or 2
(video input)
: Signal flow
or
CAUTION
Do not connect the power cord until you have completed making all other
connections; otherwise a minimum leakage current might flow through the antenna
and other terminals to ground.
*

–9 –
KV-XG29M30/XG29M50/XG29M60/ KV-XG29M80/XG29M81/XG29M90
RM-952
Using Your New TV
Using Your New TV
5
AUTO
PROGR
1
PROGR
1
VHF LOW AUTO
Front of TV
Step 3
Preset the channels automatically
Tips
•If you want to stop automatic channel presetting, press SELECT twice.
•If your TV has preset an unwanted channel or cannot preset a particular
channel, then preset your TV manually (see page 9).
Note (KV-XG29M50/XG29M80/XG29M81 only)
•During automatic channel presetting, your TV screen will indicate “B/G”,
“I”, “D/K”or “M”for the TV system.
Notes
•If you connect a monaural VCR, connect the yellow plug to (the
yellow jack) and the black plug to -L (MONO) (the white jack).
•If you connect a VCR to the ˘(antenna) terminal, preset the signal
output from the VCR to the program number 0 on the TV.
•Do not connect video equipment to the …2 (video input) jacks at the
front and the rear of your TV at the same time; otherwise the picture will
not be displayed properly on the screen.
•When no signal is input to the connected video equipment, the TV screen
becomes blue.
Insert the batteries
into the remote
Step 2
Note
•Do not use old batteries nor use different types of batteries together.
Using Your New TV
6
Connecting optional components
You can connect optional audio/video components, such as a VCR, multi disc player,
camcorder, video game or stereo system.
To watch the picture of the connected equipment, press …(see page 12).
Connecting a camcorder/video game equipment
using the …(video input) jacks
Notes
•You can also connect video equipment to the …1 or 2 (video input) jacks
at the rear of your TV.
•Do not connect video equipment to the …2 (video input) jacks at the
front and the rear of your TV at the same time; otherwise the picture will
not be displayed properly on the screen.
Connecting audio/video equipment using the Ú
(monitor output) jacks
Note
•When connecting a monaural VCR, connect the yellow plug to (the
yellow jack) and the black plug to -L (MONO) (the white jack).
2
(MONO)
Front of TV
Camcorder
Video game
equipment
To video and
audio outputs
(yellow)
-L (MONO)
(white)
-R (red)
Rear of TV
To
antenna
output
To video and
audio inputs
or
Audio system
To
audio
inputs
VCR
: Signal flow
: Signal flow
To …2
(video input)
To Ú
(monitor
output)
or
Audio/Video cable (not supplied)
Antenna cable (not supplied)
Audio/Video cable
(not supplied)