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REVISION HISTORY BX1 CHASSIS
MODEL PART NO. : 9-872-416-01
KV-XR29M50
KV-XR29M61
KV-XR29M61
KV-XR29M61
KV-XR29M80,/50
NO. SUFFIX DATE SUPPL. / CORR DESCRIPTION
1 -01 2003/10 -- 1st. Issue
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SERVICE MANUAL BX1 CHASSIS
MODEL
eclubthai COMMANDER DEST.
eclubthai CHASSIS NO. MODEL
eclubthai COMMANDER DEST. CHASSIS NO.
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KV-XR29M50 RM-W104 Thailand SCC-U94P-A
KV-XR29M61 RM-W103 GE SCC-V04F-A
KV-XR29M61 RM-W103 Malaysia SCC-U96J-A
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KV-XR29M61 RM-W103 Thailand SCC-U94N-A
KV-XR29M80,/50 RM-W104 India SCC-V06F-A
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RM-W104 RM-W103
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TRINITRON COLOR TV ®
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KV-XR29M50/XR29M80,/50/XR29M61
RM-W104 RM-W103
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TABLE OF CONTENTS
Section Title Page Section Title Page
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SELF DIAGNOSIS FUNCTION ................................ 3 4. DIAGRAMS
4-1. Block Diagram ........................................................ 34
1. DISASSEMBLY 4-2. Circuit Boards Location .......................................... 35
1-1. Rear Cover Removal ................................................. 6 4-3. Schematic Diagram ................................................. 35
1-2. Speaker Removal ...................................................... 6 4-3-1. C Board Schematic Diagram ..................... 36
1-3. Chassis Assy Removal .............................................. 6 4-3-2. A Board -- Processor (Block A) ............... 37
eclubthai Service Position ........................................................ 6
1-4. eclubthai eclubthai 4-3-3. A Board -- Audio (Block B) ..................... 39 eclubthai
eclubthai
1-5. Terminal Bracket and J1 Board Removal ................. 6 4-3-4. A Board -- Power Supply/Deflection
1-6. F Board Removal ...................................................... 6 (Block C) .................................................... 41
1-7. H3 Board Removal .................................................... 7 4-3-5. A Board -- Tuner (Block D) ..................... 43
1-8. A Board Removal ...................................................... 7 4-3-6. A Board -- Jack (Block E) ........................ 45
1-9. D3 Board Removal .................................................... 7 4-3-7. A Board -- Heat Sink (Block F),
1-10.Picture Tube Removal ............................................... 8 D3 and J1 Boards Schematic Diagrams .... 47
eclubthai eclubthai eclubthai 4-3-8. H3 Board Schematic Diagram ................... 49 eclubthai
eclubthai
2. SET-UP ADJUSTMENTS 4-3-9. F and VM Boards Schematic Diagrams .... 51
2-1. Beam Landing ........................................................... 9 4-4. Voltage Measurement and Waveforms ................... 56
2-2. Convergence ............................................................ 10 4-5. Printed Wiring Boards and Parts Location ............. 60
2-3. Focus Adjustment .................................................... 12 4-6. Semiconductors ....................................................... 65
2-4. G2 (SCREEN) Adjustments ................................... 12
2-5. White Balance Adjustment ..................................... 12 5. EXPLODED VIEWS
eclubthai eclubthai eclubthai 5-1. Picture Tube and Speaker Bracket .......................... 67 eclubthai
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3. CIRCUIT ADJUSTMENTS 5-2. Chassis ..................................................................... 68
3-1. Adjustment With Commander ................................ 13
3-2. Adjustment Method ................................................ 14 6. ELECTRICAL PARTS LIST .................................... 69
3-3. Picture Quality Adjustment .................................... 30
3-4. Deflection Adjustment ............................................ 30 INSTRUCTION MANUAL
3-5. Picture Distortion Adjustment ................................ 32
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CAUTION SAFETY-RELATED COMPONENT WARNING!!
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON
THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN
OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
ANODE. REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
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SELF DIAGNOSIS FUNCTION
The units in this manual contain a self diagnosis 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
eclubthaierror symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored
an eclubthai eclubthai eclubthai eclubthai
in memory to reveal past problems and how often these problems occur.
1. DIAGNOSIS 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.
eclubthai for all of the following diagnosis items are displayed on screen. No error has occured if the screen displays a "0".
Result eclubthai eclubthai eclubthai eclubthai
Diagnosis No. of times Self-diagnostic Probable Detected
Item STANDBY/TIMER display/Diagnosis Cause Symptoms
Description lamp flashes result Location
· Power does not Does not light -- · Power cord is not plugged · Power does not come on.
turn on in. · No power is supplied to the
eclubthai eclubthai eclubthai· Fuse is burned out (F4601)
eclubthai TV. eclubthai
(A Board) · AC power supply is faulty.
· +B overcurrent 2 times 2:0 · H.OUT (Q511) is shorted. · Power does not come on.
(OCP)* 2:1 ~ 255 (A board) · Load on power line is
· IC751 is shorted. shorted.
(C/CV Board)
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· I-Port 4 times 4:0 · +13V is not supplied. · Has entered standby state
4:1 ~ 255 (A Board) after horizontal raster.
· IC503 voltage list is faulty. · Vertical deflection pulse is
(A Board) stopped.
· Power line is shorted or
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· IK (AKB) 5 times 5:0 · Video OUT (IC751) is faulty. · No raster is generated.
5:1 ~ 255 (C Board) · CRT cathode current
· IC001 is faulty. (A Board) detection reference pulse
· Screen (G2) is improperly output is small.
adjusted.
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· HV Protect 8 times 8:0 · IC604 faulty. · No power supply to CRT
8:1 ~ 255 · IC607 faulty. ANODE.
· No RASTER is generated.
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.
eclubthai 2: Refer to screen (G2) Adjustment in section 2-4 of this manual.
Note eclubthai eclubthai eclubthai eclubthai
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2. DISPLAY OF STANDBY/(1) indicator FLASH
COUNT Diagnosis Item Flash Count*
+B overcurrent 2 times
I-Prot 4 times
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IK eclubthai 5 times eclubthai
HV Protect 8 times
* One flash count is not used for self-diagnosis.
Lamp ON 300ms FLASH RED n Please refer diagnosis item.
Lamp OFF 3 sec FLASH GREEN n OK
Lamp OFF 300ms
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STANDBY indicator
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3. STOPPING THE STANDBY/(1) indicator FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/(1) lamp
from flashing.
4. SELF-DIAGNOSTIC SCREEN DISPLAY
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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 occurrence of failure on the screen for confirmation.
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[display] / channel [5] / volume [-] / Power / TV
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Note that this differs from entering the service mode (volume [+]).
Self-Diagnostic screen display
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SELF DIAGNOSTIC
2: 0
3: N/A
4: 0 Numeral "0" means that no fault was detected.
5: 1 Numeral "1" means the number of a fault occurrence (1~255).
8: 0
101 : N/A
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5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnosis 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-diagnosis function will not be able to detect subsequent faults after
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completion of the repairs. eclubthai eclubthai eclubthai eclubthai
[Clearing the result display]
To clear the result display to "0", press buttons on the remote commander sequentially when the self-diagnostic screen is
displayed, as shown below:
Channel [8] / "0"
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[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
6. SELF-DIAGNOSIS CIRCUIT
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A BOARD A BOARD A BOARD A BOARD
IC001 IC503 IC001 IC003
Y/CHROMA JUNGLE V.OUT SYSTEM MEMORY
FROM SDA1
C BOARD 45 IK F.B-PLS 3 116 20 5 SDA
eclubthaiIC751 PIN 5 eclubthai eclubthai V.GUARD eclubthai eclubthai
A BOARD RED LED 7
FROM 97 EHTO
DISPLAY
Q511
COLLECTOR
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[+B overcurrent OCP ] Occurs when an overcurrent on the +B (135V) line is detected by pin 97 of IC001
(A Board). If the voltage of pin 97 of IC001 (A Board) is less than 1V when V.SYNC is
more than HV, the unit will automatically go to standby.
[I-Port] Occurs when an absence of the vertical deflection pulse is detected by pin 116 of
IC001 (A Board).
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[IK $AKB%] If the RGB levels* do not balance within 15 sec after the power is turned on, this error
will be detected by IC001 (A Board). TV will stay on, and indicator will start to Blink 5
times.
[HV Protect] Occurs when IC001 internal HV protect detects an abnormal H-Pulse (frequency) due
to unproper power supply to IC001. TV cuts off high voltage power of anode CRT. No
eclubthai eclubthai picture will be detected eg IC607, IC604 go faulty. eclubthai
eclubthai eclubthai
* (Refers to the RGB levels of the AKB detection Ref pulse that detects 1K)
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SECTION 1
DISASSEMBLY
1-1. REAR COVER REMOVAL 1-2. SPEAKER REMOVAL
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2 Rear cover 1 Two screws
(Washer Head)
(+P4 × 16)
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1 Twelve screws
(+BVTP 4 × 16
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1-3. CHASSIS ASSY REMOVAL 1-4. SERVICE POSITION
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1-5. TERMINAL BRACKET AND J1 BOARD 1-6. F BOARD REMOVAL
REMOVAL
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(+BVTP 3 × 12)
7 J1 Board
2 One screws
(+BVTP 3 × 12
Type 2)
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5 Terminal bracket
1 One screws 3 One Hook
(+BVTP 3 × 12 3 Two screws
Type 2) (+BVTP 3 × 12 2 F Board
Type 2)
6 Two hooks 4 One screws
(+BVTP 4 × 16
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1-7. H3 BOARD REMOVAL 1-8. A BOARD REMOVAL
1 Four screws
Two screw (+BVTAP 3 × 12)
1 Six Hooks (washer head)
eclubthai eclubthai eclubthai (+P 3 × 12)
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2 H3 Board 2 A Board
3 Four Hooks
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1-9. D3 BOARD REMOVAL
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1 Three Hooks
2 D3 Board
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1-10. PICTURE TUBE REMOVAL
Note:
· Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom
right and left.
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1) Place the TV set with the CRT face down on a cushion jig eclubthai eclubthai eclubthai
2) Remove the rear cover.
3) Unplug all interconnecting leads from the Deflection yoke, Neck assy, Degaussing Coil and CRT grounding strap.
4 Anode Cap Removal qa Band, DGC Removal
qf Screw Tapping 7 +
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Crown Washer eclubthai eclubthai eclubthai
0 Earth Coating Assy
qd Degaussing Coil
6 Loosen the Neck Assembly
fixing screw and removal
qs Holder, DGC(2) Removal
5 C Board Removal
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9 Spring Tension(2) Removal
9 Chassis Assy Removal
8 Loosen the Deflection Yoke 7 VM Board Removal
fixing screw and remove
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· REMOVAL OF ANODE-CAP
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Note:
· After removing the anode, short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT
shield or carbon paint on the CRT.
· REMOVING PROCEDURES c
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a
anode button
a 3 When one side of the rubber cap is separated from the
anode button, the anode-cap can be removed by
turning up the rubber cap and pulling it up in the
1 Turn up one side of the rubber cap in the direction direction of the arrow c.
eclubthaiindicated by the arrow a.eclubthai eclubthai HOW TO HANDLE ANeclubthai
· ANODE-CAP eclubthai
1 Do not damage the surface of anode-caps with
sharp shaped objects.
2 Do not press the rubber too hard so as not to
b damage the inside of anode-cap.
A metal fitting called the shatter-hook terminal is
b
built into the rubber.
3 Do not turn the foot of rubber over too hard.
eclubthai eclubthai eclubthai The shatter-hook terminal will stick out or damage
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the rubber.
2 Using a thumb pull up the rubber cap firmly in the direc-
tion indicated by the arrow b.
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SECTION 2
SET-UP ADJUSTMENTS
The following adjustments should be made when a Perform the adjustments in the following order :
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complete realignment is required or a new picture tube is eclubthai 1. Beam Landing eclubthai eclubthai
installed. 2. Convergence
3. Focus
Set the controls as follows unless otherwise noted: 4. Screen(G2)
VIDEO MODE: .................................................... Standard 5. White Balance
PICTURE CONTROL: ......................................... Normal
BRIGHTNESS CONTROL: ................................. Normal Note : Test Equipment Required.
1. Pattern Generator
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3. DC Power Supply
4. Digital Multimeter
5. Oscilloscope
......................................................................................................................................................................................................................
Preparation :
eclubthai In order to reduce the influence of geomagnetism on eclubthai
· eclubthai eclubthai
Purity control eclubthai
the set's picture tube, face it east or west.
· Switch on the set's power and degauss with the
degausser.
2-1. BEAM LANDING
PICTURE MODE: DYNAMIC
eclubthai Input a white signal with the pattern generator.
1. eclubthai eclubthai eclubthai eclubthai
Contrast
Brightness }
normal
Fig. 2-3
2. Position neck assy as shown in Fig 2-1.
3. Set the pattern generator raster signal to a green
raster.
4. Move the deflection yoke to the rear and adjust with Blue
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purity control so that the green is at the center and the eclubthai
Red eclubthai
blue and the red take up equally sized areas on each
side. (Figures 2-2 through 2-4.) Green
5. Move the deflection yoke forward and adjust so that the
entire screen is green. (Figure 2-2.)
6. Switch the raster signal to blue, then to red and verify
the condition. Fig. 2-4
7.
eclubthai When the position of the deflection yoke have been eclubthai
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decided, fasten the deflection yoke with the screws and
DY spacers. Purity control
corrects this area. Disk magnets or rotatable
8. If the beam does not land correctly in all the corners,
disk magnets correct these
use a magnet to adjust it. areas (a-d).
(Figure 2-5.) b a
eclubthai Neck assy eclubthai eclubthai c d eclubthai eclubthai
Deflection yoke positioning
corrects these areas.
Align the edge of b
eclubthai the neck assy with eclubthai eclubthai eclubthai eclubthai
the edge of the G2 grid. c
a
G1 G2 G3 d
eclubthai Fig. 2-1 eclubthai Fig. 2-2 eclubthai eclubthai eclubthai
Fig. 2-5
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2-2. CONVERGENCE 3 H. STAT
a b
· Before starting this adjustment, adjust the focus,
horizontal size and vertical size. b a
· Receive dot/hatch signal R B
· Pic mode: Soft
eclubthai eclubthai eclubthai eclubthaiG eclubthai
G
b B R
Center dot R
G
4 BMC (Hexapole) Magnet
B
R G B
R G B R G B R G B
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V. STAT
H. STAT VR Magnet
R B
G R G B G
R B
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RV705
H. STAT
RV1800
SCREEN (G2)
C Board
eclubthai eclubthai eclubthai Purity
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BMC
(1) Horizontal and Vertical Static Convergence
BMC (Hexapole)
1. (Moving vertically), adjust the V.STAT magnet so that
Purity
the red, green and blue dots are on top of each other
at the centre of the screen.
2. (Moving horizontally), adjust the H.STAT VR control so
eclubthai the red, green and blue dots are on top of each
that eclubthai eclubthai eclubthai eclubthai
other at the center of the screen.
3. If the H.STAT variable resistor cannot bring the red,
green and blue dots together at the center of the
screen, adjust the horizontal convergence with the
H.STAT variable resistor and the V.STAT magnet in the DY pocket
manner given below.
V.STAT
eclubthai this case,the H.STAT variable resistor and the
(In eclubthai eclubthai eclubthai eclubthai
V.STAT magnet influence each other so be sure to
perform adjustments while tracking). V.STAT
4. BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or 5. Operation of V.STAT magnet
aligned, then use the BMC magnet to adjust in the If the V.STAT magnet is moved in the "a" and "b" arrows,
manner described below. the red, green and blue dots moves as shown below.
eclubthai V. STAT
1 eclubthai eclubthai eclubthai
a b eclubthai
a b
b
a B B
B B
b b G G
G G a
R R
R R b
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6. Moved RV705 H.STAT.
2 H. STAT VR
a the red, green an blue dots move as shown below.
b
a b
R G B B G R
R G B B G R
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7. Y separation axis correction magnet adjustment. TLV Rotate TLV-2 VOL (29", 34") on DY
1. Receive the cross-hatch signal and adjust XCV Rotate XCV Adj core on DY
[PICTURE] to [MIN] and [BRIGHTNESS] to YCH Rotate YCH VOL on DY
[STANDARD] . TLH Insert TLH Correction Plate to DY Pocket
eclubthai 2. Adjust the Y separation axis correction magnet eclubthai
eclubthai eclubthai
(Left or Right) eclubthai
on the neck assembly so that the horizontal lines
at the top and bottom of the screen are straight.
Blue Red
(3) Screen-corner Convergence
Neck assy Neck assy If you are unable to adjust the corner convergence
properly, this can be corrected with the use Piece A(90)
Conv. Correct.
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Red Blue
VM1 board VM1 board
b a
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a-d : screen-corner
misconvergence
c d
(2) Dynamic Convergence Adjustment
Preparation:
Before starting this adjustment, adjust the horizontal and
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the vertical static convergence 1. Affix the Piece A(90) Conv. Correct corresponding to
the misconverged areas.
RB B
R
Fix a Perrmalloy assy b
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corresponding to the eclubthai
misconverged areas
TLH TLV a
RB
R
B
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YCH XCV
ON DY:
(VR1) c
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TLV a to d : permalloy assembly
(VR2)
DY pocket
YCH
TLH Plate
(VR3)
TLV
XCV
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DY pocket
XCV
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2-5. WHITE BALANCE ADJUSTMENT
2-3. FOCUS ADJUSTMENT
1. Set to Service Mode (Refer Section 3-1:
FOCUS adjustment should be completed before W/B
ADJUSTMENTS WITH COMMANDER).
adjustment.
2. Input white raster signal.
3. Set Picture to DYNAMIC.
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1. Receive digital monoscope pattern. eclubthai i. Set PICT 006 WTS to 00h (all models except AR2 eclubthai
eclubthai
2. Set "Picture Mode" to "DYNAMIC". series).
3. a) Adjust focus VR so that the center of screen ii. For AR2 set OPTB 006 OPB 6 to 00.
becomes just focus(29", 34"). 4. Select WHBL 002"RDRV" and adjust the value to 37
b) Adjust focus VR so that the lion teeth 5. Select WHBL 003"GDRV" and 004 "BDRV"and adjust
becomes just focus(25"). the data for the best white balance in highlight
4. Change the receiving signal to white pattern and blue condition.
back.
eclubthai eclubthai eclubthai Adjust WHBL 000 "BKOR" and 001 "BKOG"and adjusteclubthai
6. eclubthai
5. Confirm Magenta ring is not noticeable. In case the data for best white balance cut-off condition.
magenta ring is obvious, adjust FOCUS VR to balance 7. Write into the memory by pressing [MUTING] then -.
between MAGENTA RING and FOCUS. 8. Write offset data for other mode.
After adjustment, please reset:
i. OPTM 006 OPB 6 to original data (AR2 series).
ii. PICT 006 WTS to original data (All models except
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Adjust Offset Offset
18000 t 12363 t 9300
BKOR 2 3
BKOG +1 +2
RDRV 0 0
GDRV 3 8
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2-6. SUB BRIGHT ADJUSTMENT
Focus 1. Set to service mode.
2. Brightness set to 50%, Picture: Minimum.
Screen 3. Select WHBL SBRT with 1 and 4, and adjust 'SBRT'
data with 3 and 6 so that the third stripe from right
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FLYBACK TRANSFORMER (T503)
4. Write into the memory by pressing [MUTING] then -.
5. Models cut-off: 0 IRE (25", 34")
10 IRE (29")
2-4. G2 (SCREEN) ADJUSTMENTS Slightly Glimmer: 10 IRE (25", 34")
1. Set the PICTURE to Normal. 20 IRE (29")
2. Put the VIDEO input mode without signals
3. eclubthai
Connect R,G,B of the C board cathode to the
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oscilloscope.
4. Adjust cathode voltage to the value below.
5. Adjust G2 (screen) on the FBT until picture shows the
point before cut off.
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Cathode setting voltage:
170 V ± 2 (VDC)
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12
KV-XR29M50/XR29M80,/50/XR29M61
RM-W104 RM-W103
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SECTION 3
CIRCUIT ADJUSTMENTS
3-1. ADJUSTMENTS WITH COMMANDER
Service adjustments to this model can be performed using the supplied remote commander RM-W103/RM-W104 .
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a. ENTERING SERVICE MODE
With the unit on standby
t [DISPLAY] t 5 t [VOL $+% ] t [POWER]
This operation sequence puts the unit into service mode.
This screen display is:
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item no. service data NVM field channel no./
category in decimal item name in decimal NG service command frequency video input name
GEOM 006