6. ELECTRICAL PARTS LIST .................................... 67
INSTRUCTION MANUAL
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.
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.
– 2 –
KV-AR29M90B
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
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. 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.
Result for all of the following diagnosis items are displayed on screen. No error has occured if the screen displays a "0".
RM-W104
Diagnosis
Item
Description
• Power does not
turn on
• +B overcurrent
(OCP)*
• I-Port
• IK (AKB)
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
4 times
5 times
Self-diagnostic
display/Diagnosis
result
—
2:0
2:1 ~ 255
4:0
4:1 ~ 255
5:0
5:1 ~ 255
Probable
Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out (F4601)
(A Board)
• H.OUT (Q511) is shorted.
(A board)
• IC751 is shorted.
(C/CV Board)
• +13V is not supplied.
(A Board)
• IC503 voltage list is faulty.
(A Board)
• Video OUT (IC751) is faulty.
(C Board)
• IC001 is faulty. (A Board)
• Screen (G2) is improperly
adjusted.
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.
• HV Protect
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.
8 times
8:0
8:1 ~ 255
• IC604 faulty.
• IC607 faulty.
• No power supply to CRT
ANODE.
• No RASTER is generated.
– 3 –
KV-AR29M90B
RM-W104
2. DISPLAY OF STANDBY/(1) indicator FLASH
COUNT
Lamp ON 300ms
Lamp OFF 300ms
Lamp OFF 3 sec
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.
Diagnosis ItemFlash Count*
+B overcurrent2 times
I-Prot4 times
IK (AKB)5 times
HV Protect8 times
* One flash count is not used for self-diagnosis.
STANDBY u indicator
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 occurence 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
˘
Note that this differs from entering the service mode (volume [+]).
Numeral "1" means the number of a fault occurrence (1~255).
– 4 –
KV-AR29M90B
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
completion of the repairs.
[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] / [ENTER]
[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
RM-W104
FROM
C BOARD
IC751 PIN 5
A BOARD
FROM
Q511
COLLECTOR
A BOARD
IC001
Y/CHROMA JUNGLE
IK
97
EHTO
A BOARD
IC503
V.OUT
F.B-PLS
A BOARD
IC001
SYSTEM
SDA1
311645
V.GUARD
RED LED
30
7
DISPLAY
A BOARD
IC003
MEMORY
5
SDA
[+B overcurrent OCP ]Occurs when an overcurrent on the +B (135V) line is detected by pin 32 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 13 of IC001
(A Board).
[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
picture will be detected eg IC607, IC604 go faulty.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects 1K.)
– 5 –
KV-AR29M90B
RM-W104
SECTION 1
DISASSEMBLY
1-1. REAR COVER REMOVAL
2 Rear cover
1 Nine screws
(+BVTP 4 × 16)
Type 2 TT(B)
1-2. SPEAKER REMOVAL
1 Two screws
Washer head
(+P 4 × 16)
1-3. CHASSIS ASSY REMOVAL1-4. SERVICE POSITION
1-5. TERMINAL BRACKET AND J1 BOARD
REMOVAL
7 J Board
2 One screws
1 One screws
(+BVTP 3×12)
Type 2 TT(B)
6 Two hooks
5 Terminal bracket
(+BVTP 3 × 12)
Type 2 TT(B)
4 Two screws
(+BVTP 3 × 12)
Type 2 TT(B)
3 One screws
(+BVTP 4 × 16)
Type 2 TT(B)
1-6. F BOARD REMOVAL
1 One screws
(+BVTP 3 × 12)
3 One Hook
2 F Board
– 6 –
KV-AR29M90B
RM-W104
1-7. D3 BOARD REMOVAL
1 Four Hooks
2 D3 Board
1-9. A BOARD REMOVAL
1 Four screws
(+BVTAP 3 × 12)
1-8. H1 AND H2 BOARDS REMOVAL
1 Five Hooks
3 H2 Board
4 Cover, H
5 Three Hooks
2 H1 Board
4 Two screws
(washer head)
(+P 3 × 12)
2 Four Hooks
3 A Board
– 7 –
KV-AR29M90B
c
RM-W104
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.
1) Place the TV set with the CRT face down on a cushion jig
2) Remove the rear cover.
3) Unplug all interconnecting leads from the Deflection yoke, Neck assy, Degaussing Coil and CRT grounding strap.
5 Band, DGC Removal
qg Screw Tapping 7 +
Crown Washer (4)
qf DGC(2) Removal
qd Holder, DGC(2) Removal
qj Support, CRT Removal (x2)
qs Spring Tension(2) Removal
qa Loosen the Deflection Yoke
fixing screw and remove
4 Block Center
qh Anode Cap Removal
6 Earth Coating Assy
7 Loosen the Neck Assembly
fixing screw and removal
8 C Board Removal
9 Chassis Assy Removal
0 VM1 Board Removal
• REMOVAL OF ANODE-CAP
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
a
a
1 Turn up one side of the rubber cap in the direction
indicated by the arrow a.
b
b
2 Using a thumb pull up the rubber cap firmly in the
direction indicated by the arrow b.
anode button
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
direction of the arrow c.
•HOW TO HANDLE AN ANODE-CAP
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
damage the inside of anode-cap.
A metal fitting called the shatter-hook terminal is
built into the rubber.
3 Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage
the rubber.
– 8 –
SECTION 2
SET-UP ADJUSTMENTS
KV-AR29M90B
RM-W104
The following adjustments should be made when a
complete realignment is required or a new picture tube is
installed.
Perform the adjustments in the following order :
1. Beam Landing
2. Convergence
3. Focus
Set the controls as follows unless otherwise noted:
VIDEO MODE: .................................................... Standard
4. Screen(G2)
5. White Balance
PICTURE CONTROL:......................................... Normal
BRIGHTNESS CONTROL: ................................. Normal
•In order to reduce the influence of geomagnetism on the
set's picture tube, face it east or west.
Purity control
•Switch on the set's power and degauss with the
degausser.
2-1. BEAM LANDING
PICTURE MODE: DYNAMIC
1. Input a white signal with the pattern generator.
Contrast
Brightness
2. Position neck assy as shown in Fig 2-1.
}
normal
Fig. 2-3
3. Set the pattern generator raster signal to a green raster.
4. Move the deflection yoke to the rear and adjust with
purity control so that the green is at the center and the
blue and the red take up equally sized areas on each
Blue
Red
side. (Figures 2-2 through 2-4.)
5. Move the deflection yoke forward and adjust so that the
Green
entire screen is green. (Figure 2-2.)
6. Switch the raster signal to blue, then to red and verify the
condition.
7. When the position of the deflection yoke have been
Fig. 2-4
decided, fasten the deflection yoke with the screws and
DY spacers.
8. If the beam does not land correctly in all the corners, use
a magnet to adjust it.
(Figure 2-5.)
Purity control
corrects this area.
b
a
Disk magnets or rotatable
disk magnets correct these
areas (a-d).
Neck assy
Align the edge of
the neck assy with
the edge of the G2 grid.
G2G1G3
Fig. 2-1
Fig. 2-2
– 9 –
c
Deflection yoke positioning
corrects these areas.
a
d
d
Fig. 2-5
b
c
KV-AR29M90B
RM-W104
2-2. CONVERGENCE
•Before starting this adjustment, adjust the focus,
horizontal size and vertical size.
•Receive dot/hatch signal
•Pic mode: Soft
Center dot
R G B
H. STAT VR
R
G
B
V. STAT
Magnet
RV750
H. STAT
RV1800
SCREEN (G2)
C Board
(1) Horizontal and Vertical Static Convergence
1. (Moving vertically), adjust the V.STAT magnet so that 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
that the red, green and blue dots are on top of each
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 manner
given below.
(In this case,the H.STAT variable resistor and the V.STAT
magnet influence each other so be sure to perform
adjustments while tracking).
4. BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or aligned,
then use the BMC magnet to adjust in the manner
described below.
1 V. S TAT
a
bb
a
B
G
R
b
B
G
R
3 H. STAT
b
a
b
a
R
G
B
B
G
4 BMC (Hexapole) Magnet
RGB R G BRGB
RB
G
Purity
DY pocket
V.STAT
5. Operation of V.STAT magnet
If the V.STAT magnet is moved in the "a" and "b" arrows,
the red, green and blue dots moves as shown below.
b
a
b
RG
V.STAT
B
G
R
BMC
BMC (Hexapole)
Purity
a
GB
RB
b
B
G
R
b
R
2 H. STAT VR
a
RGGBB
6. Moved RV705 H.STAT.
b
R
the red, green an blue dots move as shown below.
a
RGGBB
b
R
– 10 –
KV-AR29M90B
RM-W104
6. Y separation axis correction magnet adjustment.
1. Receive the cross-hatch signal and adjust
[PICTURE] to [MIN] and [BRIGHTNESS] to
[STANDARD] .
2. Adjust the Y separation axis correction magnet
on the neck assembly so that the horizontal lines
at the top and bottom of the screen are straight.
Neck assyNeck assy
VM1 boardVM1 board
Blue
RedBlue
Red
(2) Dynamic Convergence Adjustment
Preparation:
Before starting this adjustment, adjust the horizontal and
the vertical static convergence.
TLVRotate TLV-2 VOL (29", 34") on DY
XCV Rotate XCV Adj core on DY
YCH Rotate YCH VOL on DY
TLHInsert TLHCorrection Plate to DY Pocket
(Left or Right)
(3) Screen-corner Convergence
If you are unable to adjust the corner convergence
properly, this can be corrected with the use Piece A(120)
Conv. Correct.
ba
a-d : screen-corner
misconvergence
cd
1. Affix the Piece A(120) Conv. Correct corresponding to
the misconverged areas.
ON DY:
RB
TLHTLV
RB
YCHXCV
TLV-1
YCH
XCV
B
R
R
B
DY pocket
TLH Plate
XCV
Fix a Conv. Correct
corresponding to the
misconverged areas
a
d
b
c
a to d : Conv. Correct
DY pocket
– 11 –
KV-AR29M90B
RM-W104
2-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before W/B
adjustment.
(Except 34")
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. a) Adjust focus VR so that the center of screen
becomes just focus(29", 34").
b) Adjust focus VR so that the lion teeth
becomes just focus(25").
4. Change the receiving signal to white pattern and blue
back.
5. Confirm Magenta ring is not noticeable. In case
magenta ring is obvious, adjust FOCUS VR to balance
between MAGENTA RING and FOCUS.
2-5. WHITE BALANCE ADJUSTMENT
1. Set to Service Mode (Refer Section 3-1:
ADJUSTMENTS WITH COMMANDER).
2. Input white raster signal.
3. Set Picture to DYNAMIC.
i. Set PICT 006 WTS to 00h (all models except AR2
series).
ii. For AR2 set OPTB 006 OPB 6 to 00.
4. Select WHBL 002"RDRV" and adjust the value to 37
5. Select WHBL 003"GDRV" and 004 "BDRV"and adjust
the data for the best white balance in highlight
condition.
6. Adjust WHBL 000 "BKOR" and 001 "BKOG"and adjust
the data for best white balance cut-off condition.
7. Write into the memory by pressing [MUTING] then
-.
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
AR2 series)
AdjustOffsetOffset
18000 t 12363 t 9300
BKOR–2–3
BKOG+1+2
RDRV00
GDRV–3–8
BDRV–8–18
Focus
Screen
FLYBACK TRANSFORMER (T503)
2-4. G2 (SCREEN) ADJUSTMENTS
1. Set the PICTURE to Normal.
2. Put the VIDEO input mode without signals
3. Connect R,G,B of the C board cathode to the
oscilloscope.
4. Adjust cathode voltage to the value below.
5. Adjust G2 (screen) on the FBT until picture shows the
point before cut off.
Cathode setting voltage:
170 V ± 2 (VDC)
SUB BRIGHT ADJUSTMENT
1. Set to service mode.
2. Brightness set to 50%, Picture: Minimum.
3. Select WHBL SBRT with
1 and 4, and adjust 'SBRT'
data with 3 and 6 so that the third stripe from right
dimly lit.
4. Write into the memory by pressing [MUTING] then -.
U S : US/Latin/Taiwan
E U : Europe
G A : General Area
J P: Japan
item no.service dataNVMfieldchannel no./
softwareservice datareservedpower on time
Status ByteStatus Byte
Flash DCXO#1 SSD#2 SSD
VDSP_C Flag
CO_LOCKED
VDSP
Detected Stereo Type (Direct Value from CZ_ Stereo_Mode)
111Needed for Nicam DCXO aligment Purpose
xyValue of x = 0 - Unknown, 1 - BTSC, 2 - A2, 3 - NICAM,
4 - KOREAN, 5 - Japan, 6 - AV Stereo
Value of y = 0 - Mono, 1 - Stereo, 2 - Bilingual, 4 - SAP/Single
0 1 : serial no. of the M/P release
for each destination
b. METHOD OF CANCELLATION FROM SERVICE MODE
Set the standby condition (Press [POWER] button on the commander), then press [POWER] button again, hereupon it
becomes TV mode.
c. METHOD OF WRITE INTO MEMORY
1. Set to Service Mode.
2. Press
3. Change item by pressing
1 (UP) and 4 (DOWN), to select the adjustment item.
3, 6.
4. Press [MUTING] button to indicate WRITE on the screen.
5. Press
- button to write into memory.
1, 4Select the adjustment item.
r
3, 6Raise/lower the data value.
r
[MUTING]Writes.
r
-Executes the writing.
d. MEMORY WRITE CONFIRMATION METHOD
1. After adjustment, pull out the plug from AC outlet, and then plug into AC outlet again.
2. Turn the power switch ON and set to Service Mode.
3. Call the adjusted items again to confirm adjustments were made.
– 13 –
KV-AR29M90B
RM-W104
e. OTHER FUNCTION VIA REMOTE COMMANDER
7, -All the data becomes the values in memory.
8, -All user control goes to the standard state.
Display, -Service data initialization (Be sure not to use usually.)
2, 5Select Device or Category (Up, Down)
3-2. ADJUSTMENT METHOD
Item Number 000 HPOS
This explanation uses H POSITION as an example.
1. Select "000 HPOS" with the
2. Raise/lower the data with the
3. Select the optimum state. (The standard is IF for PAL reception.)
4. Write with the [MUTING] button. (The display changes to WRITE.)
5. Execute the writing with the
SERVICE.)
Example on screen display :-
1 and 4 buttons, or 2 and 5.
3 and 6 buttons.
- button. (The WRITE display will be changed to red color while excuting, and back to
GEOM 00
1.0C
637S
GEOM 00
637S 1.0C
Write with [MUTING]
GEOM 00
1.0C
637S
Write executed with
Use the same method for all Items. Use
[MUTING], then execute the write with
-.
1F60HPOS
SERVICE
7F0000A59
1FWRITE
7F0000A59
WRITE
1F60HPOS
7F0000A59
1 and 4 to select the adjustment item, use 3 and 6 to adjust, write with
GREEN
Adjusted with 3
and 6 buttons.
60HPOS
GREEN
RED
The WRITE display
then the display
returns to green
SERVICE.
Note : 1. In [WRITE], the data for all items are written into memory together.
2. For adjustment items that have different standard data between 50Hz or 60Hz, be sure to use the respective
input signal after adjustment.
• Standard data listed on the Adjustment Item Table are reference values, therefore it may be different for each model and for each mode.
• Note for Different Data Those are the standard data values written on the microprocessor. Therefore, the data values of the modes and stored respectively in the memory.
In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
01 = 4 time speed from the original
10 = 6 time speed from the original
11 = 8 time speed from the original
SECAM
I
1
Color Decording
111
D/K
1
DEC
79
DEC
00
60
No. OPB3
Item
KV-AR29M90B
D1(D1 Terminal)0 = not available, 1 = available
AV Multi/(AV Multi Terminal) - JP0 = not available, 1 = available
PAMPortable Audio Mode - GA0 = not available, 1 = available
Component(Component [YCbCr] Terminals)0 = not available, 1 = available
Composite(No. of Composite Terminals)00 = no composite terminal
(Euro:no Scart) BX1L:No Video
(SCART)(No. of SCART Terminals)01 = 1 composite terminal
(Euro:1 Scart) BX1L:2 Video in
10 = 2 composite terminals
(Euro:2 Scart) BX1L:3 Video in
11 = 3 composite terminals
(Euro:no terminal) BX1L:4 Video in
SECAM(SECAM Color System)0 = not available, 1 = available
Color decoding(Color Crystal Selection)00 = PAL/NTSC/SECAM (Multi)