KV-AR29M80A - Sony TV Service Manual (repair manual)

kv-ar29m80a service manual
Model
KV-AR29M80A
Pages
94
Size
9.93 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-ar29m80a.pdf
Date

Read Sony KV-AR29M80A Service Manual online

MODEL
COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON
®
 
COLOR TV
SERVICE MANUAL
BG3R
MODEL
COMMANDER   DEST.
CHASSIS NO.
KV-AR29M80A
RM-952 Pakistan
RM-952
– 2 –
KV-AR29M80A
RM-952
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ........................................ 3
1. DISASSEMBLY
1-1.
Rear Cover Removal ................................................... 6
1-2.
Speaker Removal ........................................................ 6
1-3.
Chassis Assy Removal ................................................ 6
1-4.
Service Position .......................................................... 6
1-5.
Terminal Bracket and J Board Removal .................... 6
1-6.
D3 Board Removal ..................................................... 6
1-7.
H1 and H2 Boards Removal ....................................... 7
1-8.
A and B9 Boards Removal ......................................... 7
1-9.
Picture Tube Removal ................................................. 7
2. SET-UP ADJUSTMENTS
2-1.
Beam Landing ............................................................. 9
2-2.
Convergence .............................................................. 10
2-3.
Focus Adjustment ..................................................... 12
2-4.
G2 (SCREEN) and White Balance Adjustment ....... 13
3. CIRCUIT ADJUSTMENTS
3-1.
Adjustment With Commander .................................. 14
3-2.
Adjustment Method .................................................. 14
3-3.
Picture Quality Adjustments ..................................... 25
3-4.
Deflection Adjustments ............................................ 25
3-5.
H-Trapezoid Adjustment .......................................... 26
3-6.
A Board Adjustment After IC003 (MEMORY)
Replacement .............................................................. 26
3-7.
Picture Distortion Adjustment .................................. 27
Section
Title
Page
Section
Title
Page
4. DIAGRAMS
4-1.
Block Diagram .......................................................... 28
4-2.
Circuit Boards Location ........................................... 30
4-3.
Schematic Diagram Information .............................. 31
(1) A Board Schematic Diagram .............................. 32
(2) B9 Board Schematic Diagram ............................ 36
(3) C6 Board Schematic Diagram ............................ 38
(4) H1 Board Schematic Diagram ............................ 40
(5) J Board Schematic Diagram ............................... 42
(6) H2 Board Schematic Diagram ............................ 43
(7) D3 Board Schematic Diagram ............................ 44
(8) VM1 Board Schematic Diagram ........................ 45
4-4.
Voltage List and Waveforms ..................................... 46
4-5.
Printed Wiring Boards and Parts Location ............... 50
4-6.
Semiconductors ......................................................... 56
5. EXPLODED VIEWS
5-1.
Speaker Bracket ........................................................ 58
5-2.
Chassis ...................................................................... 59
5-3.
Picture Tube .............................................................. 60
6. ELECTRICAL PARTS LIST ......................................... 61
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.
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.
– 3 –
KV-AR29M80A
RM-952
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER indicator will
automatically begin to flash. A description of the self diagnostic function is explained in the instruction manual.
The number of times the STANDBY/TIMER 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/TIMER 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.
Result for all of the following diagnosis items are displayed on screen. No error has occured if the screen displays a “0”.
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 2-4 of this manual.
* R(Q703), G(Q702) or B(Q701) out is faulty (C6 board).
SELF DIAGNOSTIC FUNCTION
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 turn on.
• No power is supplied to the
TV.
• AC power supply is faulty.
• Power does not turn 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.
No. of times
STANDBY/TIMER
indicator 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
– 4 –
KV-AR29M80A
RM-952
2. DISPLAY OF STANDBY/TIMER INDICATOR LIGHT
FLASH COUNT
3. STOPPING THE STANDBY/TIMER INDICATOR FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER
indicator from flashing.
4. SELF-DIAGNOSTIC SCREEN DIPLAY
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
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.
2 times
5 times
Lamp ON 0.3 sec.
Lamp OFF 0.3 sec.
Lamp OFF 3 sec.
002 : 000
003 : 000
004 : 000
005 : 001
101 : 000
SELF DIAGNOSTIC
Numeral "0" means that no fault has been detected.
Numeral "1" means a fault has been detected.
STANDBY/SLEEP indicator
Page of 94
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Here you can read online and download Sony KV-AR29M80A Service Manual in PDF. KV-AR29M80A service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony KV-AR29M80A TV. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.