SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE
CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE
ANODE CAP.
WARNING !!
INSTRUCTION MANUAL
ATTENTION
APRES AVOIR DECONNECTE LE CAP DE’LANODE,
COURT-CIRCUITER L’ANODE DU TUBE CATHODIQUE ET
CELUI DE L’ANODE DU CAP AU CHASSIS METALLIQUE DE
L’APPAREIL, OU AU COUCHE DE CARBONE PEINTE SUR LE
TUBE CATHODIQUE OU AU BLINDAGE DU TUBE
CATHODIQUE.
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD
DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS
DIRECTLY CONNECTED TO THE POWER LINE.
SAFETY -RELA TED COMPONENT WARNING !!
!
COMPONENTS IDENTIFIED BY SHADING AND MARKED
ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION !!
AFIN D’EVITER TOUT RISQUE D’ELECTROCUTION
PROVENANT D’UN CHÁSSIS SOUS TENTION, UN
TRANSFORMATEUR D’ISOLEMENT DOIT ETRE UTILISÈ LORS
DE TOUT DÈPANNAGE LE CHÁSSIS DE CE RÈCEPTEUR EST
DIRECTMENT RACCORDÈ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á
LA SECURITÈ!!
LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE
MARQUE
!
SUR LES SCHÈMAS DE PRINCIPE, LES VUES
EXPLOSÈES ET LES LISTES DE PIECES SONT D’UNE
IMPOR-TANCE CRITIQUE POUR LA SÈCURITÈ DU
FONCTIONNEMENT,
NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT
LE NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT
MANUEL OU DANS DES SUPPLÈMENTS PUBLIÈS P AR SONY .
– 2 –
CAUTION
Lead Free Soldered Boards
The circuit boards listed below (Table 1) may have been processed using Lead Free Solder. The boards are
identified by the LF logo . e.g A,C board (see example).
BoardFunction
AONE CHIP PROCESSOR, DEFLECTION,
POWER SUPPL Y , AUDIO, TUNER, IF ,
JACK,SCART TERMINAL
CRGB AMP
(Table 1)
KV-21CL5K
RM-W100
example 1 (A Board)example 2 (C Board)
The servicing of these boards requires special precautions to be taken as outlined below:
1. It is strongly recommended to use Sony Approved Lead Free Solder material in order to guarantee optimal
quality of new solder joints.
2. Due to higher melting point of Lead Free Solder, the soldering iron tip temperature needs to be set to chip
(350 degree centigrade) and lead component (380 degree centigrade) for not more than 4 seconds. This requires
soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
WARNING
(FOR EUROPE MODEL WITH “U” (UK) ONLY)
The flexible mains lead is supplied to connected a B.S. 1363 fused plug having a fuse of 5 AMP rating. Should the
fuse need to be replaced, use a 5 AMP FUSE approved by ASTA to BS 1362, i.e one that carries the
ASA
T
mark.
IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NO T SUITABLE FOR THE OUTLET SOCKETS IN Y OUR
HOME, IT SHOULD BE CUT OFF AND APPROPRIATE PLUG FITTED. THE PLUG SEVERED FROM THE MAINS
LEAD MUST BE DESTROYED AS A PLUG WITH BARED WIRES IS DANGEROUS IF ENGAGED IN A LIVE
SOCKET.
When an alternative type of plug is used, it should be fitted with a 5 AMP FUSE, otherwise the circuit should be
protected by a 5 AMP FUSE at the distribution board.
How to replace the fuse?
Open the fuse compartment with
a screw driver blade and replace
the fuse.
– 3 –
KV-21CL5K
RM-W100
The units in this manual contain a self diagnostic function. If an error occurs, the STANDBY (1) indicator will automatically
begin to flash. A description of the self-diagnosis function is explained in the instr uction manual. 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. DIAGNOSTIC 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.
SELF DIAGNOSTIC FUNCTION
Result for all of the following diagnosis items are displayed on screen. No error has occured if the screen displays a “0”.
Diagnosis
Item
Description
Power does
not turn on
+B overcurrent
(OCP)*
V-Protect
No. of timer
STANDBY (1)
indicator flashes
Does not light
2 times
4 times
Self-Diagnostic
display/
Diagnosis result
–
2:0
or
2:1 ~ 255
4:0
or
4:1 ~ 255
Probable Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out (F600)
A board.
• H OUT (Q805) is shorted.
(A board)
• IC751 is shorted. (C board)
• +13V is not supplied.
(A board)
• IC804 is faulty. (A board)
Detected
Symptoms
• Power does not come on.
• No power is supplied on
TV.
• AC Power supply is faulty.
• Power does not come on.
• Load on power line is
shorted.
• Has entered standby state
after horizontal raster.
• Ver tical deflection pulse is
stopped.
• Power line is shorted or
power supply is shorted.
IK (AKB)
HV Protect
*If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is
diagnosed first by the mirco controller is displayed on the screen.
** Refer to Screen (G2) Adjustment in this manual.
5 times
8 times
5:0
or
5:1 ~ 255
8:0
or
8:1 ~ 255
• Video OUT (IC1545) is
faulty. (A board)
• IC001 is faulty. (A board)
• Screen (G2) is improperly
adjusted.**
• IC604 faulty.
• IC602 faulty.
• No raster is generated.
• CRT Cathode current
detection reference pulse
output is small.
• No power supply to CRT
ANODE.
• No RASTER is generated.
– 4 –
2. DISPLAY OF STANDBY (1) INDICATOR
KV-21CL5K
RM-W100
FLASH COUNT
Lamp ON 300ms
Lamp OFF 300ms
Diagnostic ItemFlash Count*
+B overcurrent2 times
V-Protect4 times
IK (AKB)5 times
HV Protect8 times
* One flash count is not used for self-diagnosis.
Lamp OFF 3 sec
STANDBY u indicator
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)
indicator from flashing.
4. SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes off" that cannot be confirmed,
it is possible to bring up past occurrences 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 [+]).
The following screen will be displayed indicating the error count.
ERROR MENU
2 : 0
3 :N/A
4 :0
5 :1
8 :0
101 :N/A
Numeral "0" means that no fault was detected.
Numeral "1" means the number of a fault occurrence (1 ~ 255).
– 5 –
KV-21CL5K
RM-W100
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-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 subsequent as shown below when the
self-diagnostic screen is being displayed.
[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
8 / -
6. SELF-DIANOSTIC CIRCUIT
FROM
C BOARD
IC751 PIN 5
A BOARD
FROM
Q804
COLLECTOR
A BOARD
IC001
Y/CHROMA JUNGLE
IK
32
EHTO
A BOARD
IC804
V.OUT
F.B-PLS
A BOARD
IC001
SYSTEM
SDA1
31384
V.GUARD
RED LED
99
122
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 32 of IC001 (A board) is more than 4V, the unit will automatically go to
standby.
[V-PROTECT]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 tur ned on, this error will be
detected by IC001 (A board). TV will stay on, but there will be 5 times LED blinking.
[HV PROTECT]Occurs when IC001 internal HV protect detects an abnormal H-Pulse (frequency) due to
improper power supply to IC001. TV cuts off high voltage power of anode CRT. No picture will
be detected. eg: IC602, IC604 go faulty.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
– 6 –
SECTION 1
DISASSEMBLY
KV-21CL5K
RM-W100
1-1.REAR COVER REMOVAL
2 Rear cover
1 Eight Screws
(PT screws)
1-2.SPEAKER BLOCK ASSY REMOVAL
Two Screws
(4 x 16)W(+)
P TAPPING
1-3.CHASSIS ASSY REMOVAL
1-4.SERVICE POSITION
1-5.TERMINAL BRACKET REMOVAL
1 One screw
(+BVTP 3x16)
3 Terminal
Bracket FBT
2 One screw
(PT screws)
bracket
1-6.A BOARD REMOVAL
A Board
– 7 –
KV-21CL5K
c
RM-W100
1-7.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)Removal the rear cover.
3)Unplug all interconnecting leads from the Deflection Y oke, Degaussing Coils and CRT grounding strap.
qd unscrew — PT Screw (x4)
qs Earth Coating Assy Removal
9 Holder, DGC Removal (x2)
0 Degaussing Coil
Removal (x2)
qa Spring Tension
Removal (x1)
8 Support, CRT(21)
Removal (x2)
4 Anode Cap Removal
5 C Board Removal
7 Chassis Assy Removal
6 Loosen the Deflection Yoke
fixing screw and remove
• 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
1Turn up one side of the rubber cap in the direction
indicated by the arrow a.
b
b
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
1Do not damage the surface of anode-caps with
sharp shaped objects.
2Do 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.
3Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage
the rubber.
anode button
2Using a thumb pull up the rubber cap firmly in the di-
rection indicated by the arr ow b.
3When one side of the rubber cap is separated from
– 8 –
SECTION 2
SET-UP ADJUSTMENTS
KV-21CL5K
RM-W100
• 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
PICTURE CONTROL .......................................... NORMAL
BRIGHTNESS CONTROL.................................... NORMAL
In order to reduce the influence of geomagnetism on the
7. If the beam does not land correctly in all the corners,
use a magnet to correct if. (see figure 2-1-3)
set's picture tube, face it east or west. Switch on the set's
power and degauss with the degausser.
Purity control
2-1. BEAM LANDING
Picture Mode : LIVE
corrects this area.
b
a
Disk magnets or rotatable
disk magnets correct these
areas (a-d).
1. Input a white signal with the pattern generator.
Set the contrast and brightness to normal.
2. Set the pattern generator raster signal to a green raster.
c
d
3. Move the deflection yoke to the rear and adjust with the
purity control so that the green is at the centre and the
blue and red take up equally sized areas on each side
Deflection yoke positioning
corrects these areas.
of the screen. (see figure 2-1 and figure 2-1-1)
Purity control
Figure 2-1Figure 2-1-1
4. Move the deflection yoke forward and adjust so that the
entire screen is green. (see figure 2-1-2)
b
c
a
d
Figure 2-1-3
Caution:
High voltages are present on the Deflection yoke
terminals. Take care when handling the deflection yoke
whilst carrying out adjustments.
Blue
Red
Green
Figure 2-1-2
5. Switch the raster signal to blue, then red and verify the
condition.
6. When the position of deflection yoke have been
decided, fasten the deflection yoke with the screws and
DY spacers.
– 9 –
KV-21CL5K
BGR
A
RGB
B
RM-W100
2-2. CONVERGENCE
Preparation:
•Before starting this adjustment, adjust the focus,
horizontal size and vertical size.
•Receive dot/hatch signal.
•Picture Mode : MOVIE
(A) Horizontal and Vertical Static Convergence
Centre dot
R G B
H. STAT VR
R
G
B
V. STAT
Magnet
4. If the H.STAT variable resistor cannot bring the red,
green and blue dots together at the centre of the
screen, adjust the horizontal convergence with the H.
STAT var iable 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.)
BMCPurity
BMC (Hexapole)
Purity
C Board
RV750
1. (Moving vertically), adjust the V.STAT magnet so that
the red, green and blue dots are on top of each other at
ther 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 centre of the screen.
3. 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.
DY pocket
V.STAT
V.STAT
Operation of V.STAT magnet.
If the V.STAT is moved in the "A" and "B" arrows, the red,
green and blue dots moves as shown below.
AB
B
G
B
G
BGRR G BRGB
RB
G
RG
GB
RB
R
R
Moved RV750 H.STAT the red, green and blue dots move
as shown below.
– 10 –
KV-21CL5K
RM-W100
5. Layout of each control.
V.STAT
Purity
BMC (Hexapole)
H-TILT correction can be performed by adding a TLH
correction assembly to the Deflection Y oke.
8. YCH Adjustment
YCH VR
Deflection Yoke
6. Geometr y Adjustment.
Preparation:
Before starting this adjustment, adjust the horizontal and
vertical static convergence.
a) Remove the deflection yoke spacer.
b) Tilt the deflection yoke as indicated in the figure below
and optimise the geometry.
Tilting the DY up and down will balance the upper and
lower pin adjustment.
Tilting the DY left and right will balance the H-Trap
adjustment.
c) Re-install the deflection yoke spacer.
9. TLV Adjustment
TLV VR
Deflection Yoke
10.Screen Corner Convergence.
If you are unable to adjust the corner convergence
properly, this can be corrected with the use of Piece
A(90) Conv. Correct.
ba
7. H-TILT Adjustment
,
,
,
,
Tilt Direction
Deflection Yoke
a-d : screen-corner
misconvergence
cd
,
Install the Piece A(90) Conv. Correct
assembly for the area that needs correcting.
a
b
Piece A(90) Conv. Correct
4-094-690-01
TLH pieces
– 11 –
d
Convergence adjustment with
Piece A(90) Conv. Correct
c
KV-21CL5K
RM-W100
2-3. FOCUS ADJUSTMENT
1. Receive digital monoscope pattern.
2. Set Picture Mode to PERSONAL.
3. Adjust focus VR to obtain the best focus at the centre of
the screen.
4. Change the receiving signal to white pattern and blue
back.
5. Confirm magenta ring is not noticeable. In case
magenta is very obvious, adjust the focus VR to take
balance of magenta ring and focus.
2-5. WHITE BALANCE ADJUSTMENT
1. Enter into Service Menu.
2. Input white pattern signal.
3. Set picture to PERSONAL mode.
4. Select WHBL "RDRV" and fix the value to 25 hex.
5. Adjust WHBL "GDRV" and "BDRV" and adjust the data
for best white balance in highlight condition.
6. Adjust WHBL "BKOR" and "BKOG" and adjust the data
for best white balance cut-off condition.
7. Set the offset settings for LIVE and GAME mode as
stated in the table 1 below:-
OFFSET TABLE (Table 1)
LiveTPersonalTGame
Adjusted value +2BKOR (adjusted)Adjusted value
Adjusted value -3BKOG (adjusted)Adjusted value
25hexRDRV (25hex)25hex
Adjusted value +2GDRV (adjusted)Adjusted value -2
Adjusted value +4BDRV (adjusted)Adjusted value -6
FOCUS
SCREEN
FLYBACK TRANSFORMER (T801)
2-4. G2(SCREEN) ADJUSTMENT
1. Input a dot signal from the pattern generator.
2. Set the Picture, Brightness and Colour to minimum.
3. Apply 167V DC from an external power supply to the
R,G and B cathodes of the CRT.
4. Adjust brightness to obtain cathode value to value
below.
5. Whilst watching the picture, adjust the G2 control
[SCREEN] located on the Flyback Transformer to the
point just before the flyback return lines disappear.
Cathode setting voltage:
167 V ± 2 (VDC) — 21"
– 12 –
SECTION 3
CIRCUIT ADJUSTMENTS
3-1. ADJUSTMENT WITH COMMANDER
Service adjustment to this model can be performed using the supplied remote commander RM-W100.
a. ENTERING SERVICE MODE
With the unit on standby, press the following sequence of buttons on the remote commander.
/ Display / Channel 5 / Volume [+] / Power / TV
'TT – –'will appear in the upper right cor ner of the screen.
KV-21CL5K
RM-W100
Other status information will also be displayed.
b. Press 'MENU' on the remote commander to obtain service menu on the screen.
GEOM
WHBL
SADJ
YC
SYNC
PICT
SW
VIF
c.The screen only displays 8 items at one time. To move to the corresponding item use the up
the remote commander.
d. Press the right
/ left button or ENTER button on the remote commander to enter into the required item.
Item
Name
RangeData
down buttons on
HPOS
HPAR
e. The screen only display 12 items at one time. To move to the corresponding item use the up
the remote commander.
f.Press right
g. Press the 'MENU' button on the remote commander to quit from Service Menu. Screen will still display 'TT – –'. To exit
from 'TT – –' menu, press 0 twice, 'TEST', 'TV' or switch the TV into standby mode.
Note:
•After carrying out the ser vice adjustments, to prevent the customer accessing the 'Service Menu' switch the TV set