Sony FD Trinitron WEGA KV-36FS12 User manual

SERVICE MANUAL
AA-2U CHASSIS
MODEL COMMANDER DEST CHASSIS NO.
KV-36FS12 RM-Y168 US SCC-S44A-A
KV-36FS12 RM-Y168 CND SCC-S45A-A
KV-36FS12 RM-Y168 HAWAII SCC-S46A-A
KV-36FS16 RM-Y169 US SCC-S44B-A
KV-36FS16 RM-Y169 CND SCC-S45B-A
KV-36FS16 RM-Y169 HAWAII SCC-S46B-A
KV-36FV16 RM-Y171 US SCC-S44C-A
KV-36FV16 RM-Y171 HAWAII SCC-S46C-A
KV-36FV26 RM-Y170 US SCC-S44D-A
KV-36FV26 RM-Y170 CND SCC-S45C-A
KV-36FV26 RM-Y170 HAWAII SCC-S46D-A
TRINITRON®COLOR TV
RM-Y170
KV-36FV26
887 Front.p65 5/5/00, 3:31 PM1

—2 —
KV-36FS12/36FS16/36FV16/36FV26
1) 1Vp-p75ohmsunbalanced,syncnegative
2) Y: 1Vp-p75ohmsunbalanced,syncnegative
C: 0.286Vp-p (Burst signal),75 ohms
3) Y:1.0Vp-p,75ohms,syncnegative;PB:0.7Vp-p, 75 ohms;
PR:Vp-p,75ohms
4) 500mVrms(100%modulation),Impedance: 47kilohms
5) Morethan408mVrmsatthemaximumvolume setting (variable)
Morethan408mVrms(fix);Impedance (output): 2 kilohms
SPECIFICATIONS
( •) SRS (SOUND RETRIEVAL SYSTEM)
The ( •) SRS (SOUND RETRIEVAL SYSTEM) is
manufactured by Sony Corporation under license
from SRS Labs, Inc. It is covered by U.S. Patent No.
4,748,669. Other U.S. and foreign patents pending.
The word ‘SRS’ and the SRS symbol ( •) are
registered trademarks of SRS Labs, Inc.
BBE and BBE symbol are trademarks of BBE Sound,
Inc. and are licensed by BBE Sound, Inc. under U.S.
Patent No. 4,638,258 and 4,482,866.
Television system
American TV standard, NTSC
Channel coverage
VHF:2-13/UHF:14-69/CATV:1-125
Picture tube
Trinitron® tube
Visible screen size
36-inch picture measured diagonally
Actual screen size
38-inch measured diagonally
Antenna
75 ohm external terminal for VHF/UHF
Supplied Accessories
RM-Y168(KV-36FS12 ONLY)
RM-Y169(KV-36FS16 ONLY)
RM-Y170(KV-36FV26 ONLY)
RM-Y171(KV-36FV16 ONLY)
Batteries sizeAA (R6) (2)
Wireless Stereo Headphones MDR-1F0230 (KV-36FV26 ONLY)
Battery for Headphones sizeAA(R6) (1) (KV-36FV26 only)
Optional Assessories
AV Cable: VMC-810/820/830 HG
Audio Cable: RKC-515HG
S-LINK Cable: RK-G69HG (KV-36FV16/36FV26 ONLY)
Component Video Cable: VMC-10/30 HG
TV Stand: SU-36FD3
Design and specifications are subject to change without notice.
KV-36FS12
KV-36FS16 KV-36FV16 KV-36FV26
Power requirements 120V, 60Hz 120V, 60Hz
Number of inputs/outputs Video
1)
33
S Video
2)
12
Y,P
B
, P
R
3)
11
Audio
4)
44
Audio Out
5)
11
Monitor Out -- 1
S-Link -- 3
Control-S (IN/OUT) -- 1
Speaker output(W) 5W x 2 15W x 2
Power Consumption(W)
In use(Max) 190W 200W
In standby 2W 2W
Dimensions(W/H/D)
(mm) 910 x 791 x 650 975 x 757 x 633
Mass (kg) 100 kg 107 kg
(lbs) 220 lbs. 236 lbs.

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KV-36FS12/36FS16/36FV16/36FV26
Section Title Page
Warnings and Cautions...............................................................................................................................................................4
Self-Diagnostic Function .............................................................................................................................................................4
Safety Check-Out Instructions ...................................................................................................................................................7
1. GENERAL .............................................................................................................................................................8
2. DISASSEMBLY
2-1. Rear Cover Removal.....................................................................................................................................................13
2-2. Chassis Assembly Removal .........................................................................................................................................13
2-3. Service Position ............................................................................................................................................................13
2-4. PictureTubeRemoval ...................................................................................................................................................14
3. SET-UPADJUSTMENTS
3-1. BeamLanding ...............................................................................................................................................................15
3-2. Convergence ................................................................................................................................................................16
3-3. Focus ............................................................................................................................................................................17
3-4. Screen (G2) ..................................................................................................................................................................18
3-5. White Balance Adjustments ..........................................................................................................................................18
4. SAFETYRELATEDADJUSTMENTS
4-1. R530, R531 Confirmation Method (HV Hold-Down Confirmation and Readjustments)..........................................19
4-2. B+ Voltage Confirmation and Adjustment .....................................................................................................................19
5. CIRCUIT ADJUSTMENTS
5-1. Setting the Service Adjustment Mode ..........................................................................................................................20
5-2. Memory Write Confirmation Method..............................................................................................................................20
5-3. Adjust Buttons and Indicators ......................................................................................................................................20
5-4. Adjustment Items...........................................................................................................................................................21
5-5. FeatureID Map ..............................................................................................................................................................26
5-6. ProgramPaletteSettings...............................................................................................................................................27
5-7. A Board Adjustments ....................................................................................................................................................27
6. DIAGRAMS
6-1. Block Diagram (1/2) (KV-36FS12/36FS16 ONLY)........................................................................................................31
6-2. Block Diagram (1/2) (KV-36FV16/36FV26 ONLY)........................................................................................................33
6-3. Block Diagram (2/2) (KV-36FS12/36FS16 ONLY) .......................................................................................................35
6-4. Block Diagram (2/2) (KV-36FV16/36FV26 ONLY).......................................................................................................37
6-5. Circuit Board Location ..................................................................................................................................................39
6-6. Printed Wiring Boards and Schematic Diagrams .........................................................................................................39
• A Board ....................................................................................................................................................................40
• UX Board ..................................................................................................................................................................47
• UXPIPBoard ............................................................................................................................................................51
• UY Board..................................................................................................................................................................55
• UYPIP Board............................................................................................................................................................59
• AK Board..................................................................................................................................................................63
• C Board ....................................................................................................................................................................67
• G Board ....................................................................................................................................................................69
• HA Board ..................................................................................................................................................................71
• HB Board ..................................................................................................................................................................73
• HX Board ..................................................................................................................................................................73
• HS Board ..................................................................................................................................................................74
• WA Board .................................................................................................................................................................75
• T Board.....................................................................................................................................................................77
6-7. Semiconductors ............................................................................................................................................................79
7. EXPLODED VIEW
7-1. Chassis (KV-36FS12/36FS16 ONLY) ..........................................................................................................................80
7-2. Picture Tube (KV-36FS12/36FS16 ONLY) ...................................................................................................................81
7-3. Chassis (KV-36FV16/36FV26 ONLY)..........................................................................................................................82
7-4. Picture Tube (KV-36FV12/36FV26 ONLY)...................................................................................................................83
8. ELECTRICALPARTSLIST ...................................................................................................................................................84
TABLE OF CONTENTS

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KV-36FS12/36FS16/36FV16/36FV26
WARNINGS AND CAUTIONS
CAUTION
SHORTCIRCUITTHEANODEOFTHEPICTURETUBEAND
THEANODECAP TOTHEMETALCHASSIS, CRTSHIELD,
ORCARBON PAINTEDON THECRT,AFTER REMOVING
THEANODE.
WARNING!!
ANISOLATIONTRANSFORMERSHOULDBEUSEDDURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD,
BECAUSE OF LIVE CHASSIS. THE CHASSIS OF THIS
RECEIVERISDIRECTLYCONNECTEDTOTHEACPOWER
LINE.
SAFETY-RELATEDCOMPONENTWARNING!!
COMPONENTSIDENTIFIEDBYSHADINGANDMARK ON
THESCHEMATICDIAGRAMS,EXPLODED VIEWS,ANDIN
THEPARTSLISTARE CRITICALFOR SAFEOPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BYSONY.
CIRCUITADJUSTMENTSTHATARE CRITICALFORSAFE
OPERATIONAREIDENTIFIEDINTHISMANUAL. FOLLOW
THESE PROCEDURES WHENEVER CRITICAL
COMPONENTSAREREPLACEDORIMPROPEROPERATION
ISSUSPECTED.
ATTENTION!!
APRES AVOIR DECONNECTE LE CAP DE L'ANODE, COURT-CIRCUITER
L'ANODEDUTUBECATHODIQUEETCELUIDEL'ANODEDUCAPAUCHASSIS
METALLIQUEDEL'APPAREIL,OUAUCOUCHEDECARBONEPEINTESURLE
TUBECATHODIQUEOUAUBLINDAGEDUTUBECATHODIQUE.
ATTENTION!!
AFIND'EVITERTOUTRESQUED'ELECTROCUTIONPROVENANTD'UNCHÁSSIS
SOUSTENSION,UNTRANSFORMATEURD'ISOLEMENTDOITETREUTILISÉLORS
DETOUTDÉPANNAGE.LECHÁSSISDECERÉCEPTEURESTDIRECTEMENT
RACCORDÉÀL'ALIMENTATIONSECTEUR.
ATTENTIONAUXCOMPOSANTSRELATIFSALASECURITE!!
LESCOMPOSANTSIDENTIFIESPARUNETRAMEETPARUNEMARQUE SUR
LESSCHEMASDEPRINCIPE,LESVUESEXPLOSEESETLESLISTESDEPIECES
SONT D'UNEIMPORTANCE CRITIQUE POUR LA SECURITE DU
FONCTIONNEMENT.NELESREMPLACERQUEPARDESCOMPOSANTSSONY
DONTLENUMERODE PIECEEST INDIQUEDANS LEPRESENTMANUELOU
DANSDESSUPPLEMENTSPUBLIESPARSONY.LESREGLAGESDECIRCUIT
DONTL'IMPORTANCEESTCRITIQUEPOURLASECURITEDUFONCTIONNEMENT
SONTIDENTIFIESDANSLEPRESENTMANUEL.SUIVRECESPROCEDURES
LORS DE CHAQUE REMPLACEMENT DE COMPOSANTS CRITIQUES, OU
LORSQU'UNMAUVAISFONTIONNEMENTSUSPECTE.
SELF-DIAGNOSTIC FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to flash.
The number of times the LED flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER LED 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.
Diagnostic Test Indicators
When an error occurs, the STANDBY/TIMER LED will flash a set number of times to indicate the possible cause of the problem. If there is
more than one error, the LED will identify the first of the problem areas.
Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a “0”.
Diagnostic Item
Description
No. of Times
STANDBY/TIMER
LED Flashes
Self-diagnostic Display/
Diagnostic Result Probable Cause Location Detected Symptoms
Power does not turn on Does not light N/A • Power cord is not plugged in.
• Fuse is burned out. (F601) (A Board) • Power does not come on. • No power is supplied to the TV.
• AC power supply is faulty.
+B overcurrent (OCP)* N/A N/A • H.OUT (Q502) is shorted. (A Board)
• IC1701 is shorted. (C Board) • Power does not come on. • Load on power line is shorted.
+B overvoltage (OVP)* N/A N/A • IC643 or T603 is open. (G Board) • Power does not come on.
VSTOP* 4 times 4:0 or 4:1 • +13V is not supplied. (A Board)
• IC502 is faulty. (A Board) • Has entered standby state after horizontal raster. • Vertical deflection pulse is stopped.
• Power line is shorted or power supply is stopped.
IK 5 times 5:0 or 5:1 • Video OUT (IC502) is faulty. (A Board)
• IC1301 is faulty. (MB Board)
• Screen (G2) is improperly adjusted.**
• No raster is generated.
• CRT cathode current detection reference
pulse output is small.
* 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.
** Refer to Screen (G2) Adjustments in Section 3-4 of this manual.

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KV-36FS12/36FS16/36FV16/36FV26
STANDBY/TIMER LED
Display of Standby/Timer LED Flash Count
4 times
5 times
LED ON 0.3 sec.
LED OFF 0.3 sec. LED OFF
3 sec.
Diagnostic Item Flash Count*
V-Stop 4 times
IK 5 times
*One flash count is not used for self-diagnostic.
Stopping the Standby/Timer LED 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.
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 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 5Sound volume
Note that this differs from entering the service mode (sound volume ).
Power ON
+
Self-Diagnostic Screen Display
2: +B OCP N/A
3: +B OVP N/A
4: VSTOP 0
5: AKB 1
101: WDT 24
Numeral “0” means that no fault was detected.
Numeral “1” means a fault was detected one time only.
SELF DIAGNOSIS

—6 —
KV-36FS12/36FS16/36FV16/36FV26
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 when the diagnostic screen is displayed,
as shown below:
ENTERChannel 8
Quitting the Self-Diagnostic Screen
To quit the entire self-diagnostic screen, turn off the power switch on the Remote Commander or the main unit.
Self-Diagnostic Circuit
A BOARD
IC355
Y/CHROMA UNGLE
A BOARD
IC561
V. OUT
A BOARD
IC001
SYSTEM
A BOARD
IC1002
MEMORY
IK IN
FROM
C BOARD
IC1701 PIN1
21
HP/PROTECT
SDA
A BOARD
FROM
IC501
PIN 1
18
35 IO-SDATN
O-TIMELED
27
REF 3VM
IO-BDATN
15
26 BDA 5
59
DISPLAY
+B overcurrent (OCP) Occurs when an overcurrent on the +B (135V) line is detected by pin 18 of IC355 (A Board).
If the voltage of pin 18 of IC355 (A Board) is less than 1V when V.SYNC is more than seven
verticals in a period, the unit will automatically turn off.
+B overvoltage (OVP) Occurs when the feedback circuit from +B opens IC643 or T603 or any other associated
feedback components.
V-Stop Occurs when an absence of the vertical deflection pulse is detected by pin 15 of IC355 (A
Board). Power supply will shut down when waveform interval exceeds 2 seconds.
IK(AKB) If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will
be detected by IC355 (A Board). TV will stay on, but there will be no picture.
*(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).
NOTE:
Watch Dog Timer Indicates how many times the Watch Dog Timer functions have been activiated. Whenever
micro is reset by the Watch Dog Timer, this number is incremented. Maximum number is 255.

—7 —
KV-36FS12/36FS16/36FV16/36FV26
After correcting the original service problem, perform the
following safety checks before releasing the set to the
customer:
1. Check the area of your repair for unsoldered or
poorly soldered connections. Check the entire board
surface for solder splashes and bridges.
2. Check the interboard wiring to ensure that no wires
are “pinched”or touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground
straps, and mounting hardware have been replaced.
Be absolutely certain that you have replaced all the
insulators.
4. Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous
repair. Point them out to the customer and
recommend their replacement.
5. Look for parts which, though functioning, show
obvious signs of deterioration. Point them out to the
customer and recommend their replacement.
6. Check the line cords for cracks and abrasion.
Recommend the replacement of any such line cord
to the customer.
7. Check the B+ and HV to see if they are specified
values. Make sure your instruments are accurate;
be suspicious of your HV meter if sets always have
low HV.
8. Check the antenna terminals, metal trim, “metallized”
knobs, screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.
SAFETY CHECK-OUT
Leakage Test
The AC leakage from any exposed metal part to earth
ground and from all exposed metal parts to any exposed
metal part having a return to chassis, must not exceed 0.5
mA (500 microamperes). Leakage current can be
measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson
229 or RCA WT-540A. Follow the manufacturers'
instructions to use these instructions.
2. A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for this
job.
3. Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC voltmeter.
The “limit”indication is 0.75 V, so analog meters
must have an accurate low voltage scale. The
Simpson’s 250 and Sanwa SH-63TRD are examples
of passive VOMs that are suitable. Nearly all battery-
operated digital multimeters that have a 2 VAC
range are suitable (see Figure A).
How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-
plate retaining screw on most AC outlet boxes is also at earth
ground. If the retaining screw is to be used as your earth
ground, verify that it is at ground by measuring the resistance
between it and a cold-water pipe with an ohmmeter. The
reading should be zero ohms. If a cold-water pipe is not
accessible, connect a 60- to 100-watt trouble- light (not a
neon lamp) between the hot side of the receptacle and the
retaining screw. Try both slots, if necessary, to locate the hot
side on the line; the lamp should light at normal brilliance if
the screw is at ground potential (see Figure B).
Figure B. Checking for earth ground.Figure A. Using an AC voltmeter to check AC leakage.
Trouble Light
AC Outlet Box Ohmmeter
Cold-water Pipe

—8 —
KV-36FS12/36FS16/36FV16/36FV26
The instructions mentioned here are partial abstracts from the Operating Instruction Manual.
The page numbers shown reflect those of the Operating Instruction Manual.
SECTION1GENERAL

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KV-36FS12/36FS16/36FV16/36FV26

—10 —
KV-36FS12/36FS16/36FV16/36FV26

—11 —
KV-36FS12/36FS16/36FV16/36FV26

—12 —
KV-36FS12/36FS16/36FV16/36FV26

—13 —
KV-36FS12/36FS16/36FV16/36FV26
SECTION 2
DISASSEMBLY
2-1. REAR COVER REMOVAL
2-2. CHASSIS ASSEMBLY REMOVAL
5 Screws (+BVTP 4x16)
3 Screws
(+BVTP 4x16) 2 Screws (+BVTP 3x12)
4 Screws
(+BVTP 4x16)
4 Screws (+BVTP 4x16)
Claw
Chassis Assembly
2-3. SERVICE POSITION
A Board
UY Board
(KV-36FS12/36FS16 ONLY)
UX Board
(KV-36FV16/36FV26 ONLY)
G Board
C Board
WA Board

—14 —
KV-36FS12/36FS16/36FV16/36FV26
10
9
8
7
1
6
5
4
3
Coated
Earth
Ground
Strap
2-4. PICTURE TUBE REMOVAL
WARNING:
BEFOREREMOVING
THEANODECAP
High voltage remains in the CRT
even after the power is discon-
nected. To avoid electric shock,
discharge CRT before attempting
to remove the anode cap. Short
between anode and CRT coated
earth ground strap.
a
REMOVAL PROCEDURES
HOW TO HANDLE AN ANODE CAP
WARNING: High voltage remains in the CRT even after the power is disconnected. To avoid electrical shock, discharge the CRT before
attempting to remove the anode cap. Short between anode and coated earth ground strap of CRT.
NOTE: After removing the anode, short circuit the anode of the picture tube and the anode cap to either the metal chassis, CRT shield,
or carbon painted on the CRT.
1
Do not use sharp objects which may cause damage to the
surface of the anode cap.
3
Do not force turn the foot of the rubber cover. This may cause
the shatter-hook terminal to protrude and damage the rubber.
2
To avoid damaging the anode cap, do not squeeze the rubber
covering too hard. A material fitting called a shatter-hook terminal
is built into the rubber.
2
Use your thumb to pull the rubber
cap firmly in the direction indicated
by arrow
b .
3
When one side of the rubber cap
separates from the anode button,
the anode cap can be removed by
turning the rubber cap and pulling
it in the direction of arrow
c .
1
Turn up one side of the rubber cap in
the direction indicated by arrow
a .
b
Anode Button
c
ANODE CAP REMOVAL
1. Discharge the anode of the CRT and remove the anode cap.
2. Unplug allinterconnectingleads fromthe deflectionyoke, neck
assembly, degaussing coils and CRT grounding strap.
3. Remove the C Board from the CRT.
4. Remove the chassis assembly.
5. Loosen the neck assembly fixing screw and remove.
6. Loosen the deflection yoke fixing screw and remove.
7. Place the set with the CRT face down on a cushion and remove
the degaussing coil holders.
8. Remove the degaussing coils.
9. Remove the CRT grounding strap and spring tension devices.
10. Unscrew the four CRT fixing screws [located on each CRT
corner] and remove the CRT [Take care not to handle the CRT
by the neck].

—15 —
KV-36FS12/36FS16/36FV16/36FV26
SECTION 3
SET-UP ADJUSTMENTS
The following adjustments should be made when a
complete realignment is required or a new picture tube is
installed.
These adjustments should be performed with rated power
supply voltage unless otherwise noted.
The controls and switch should be set as follows
unless otherwise noted:
PICTURE control .........................................normal
BRIGHTNESS control.................................. normal
Perform the adjustments in order as follows:
1. BeamLanding
2. Convergence
3. Focus
4. Screen (G2)/White Balance
Note: Test Equipment Required:
1. Color Bar Pattern Generator
2. Degausser
3. DC Power Supply
4. DigitalMultimeter
5. Oscilloscope
6. CRTAnalyzer
3-1. BEAM LANDING
Preparation:
•Input a white pattern signal.
•Face the picture tube in an East or West direction to reduce
theinfluence of geomagnetism.
NOTE: Do not use the hand degausser because it magnetizes
the CRT .
1. Input white pattern from pattern generator.
2. Loosen the deflection yoke mounting screw, and set the
purity control to the center as shown below:
3. Input green pattern from pattern generator.
4. Move the deflection yoke backward, and adjust with the
purity control so that green is in the center and red and blue
are even on both sides.
Blue Red
Green
5. Move the deflection yoke forward, and adjust so that the
entire screen becomes green.
6. Switch over the raster signal to red and blue and confirm the
condition.
7. When the position of the deflection yoke is determined,
tighten it with the deflection yoke mounting screw.
8. When landing at the corner is not right, adjust by using the
disk magnets.
a
c
b
d
ba
cd
Purity control
corrects this area
Disk magnets
or rotatable disk
magnets correct
these areas (a-d)
Deflection yoke positioning
corrects these areas

—16 —
KV-36FS12/36FS16/36FV16/36FV26
3-2. CONVERGENCE
Preparation:
•Perform FOCUS, V. LIN and V. SIZE adjustments.
•Set BRIGHTNESS control to minimum.
•Input dot pattern.
B
G
R
Center dot
V.STAT magnet
RV701 V.STAT
RGB
Vertical and Horizontal Static Convergence
1. Adjust V. STAT magnet to converge red, green and blue dots
in the center of the screen (Vertical movement).
Tilt the V. STAT magnet and adjust static convergence to
open or close the V. STAT magnet.
2. When the V. STAT magnet is moved in the direction of arrow
a and b, red, green, and blue dots move as shown below:
B
R
G
B
R
G
RG B
G
R
B
G
B
R
BG R
1
2
3
a
b
ab
b
b
aa
b
ba
b
ab
Operation of BMC (Hexapole) Magnet
The respective dot positions resulting from moving each magnet
interact, so perform adjustment while tracking.
1 Use the V.STAT tabs to adjust the red, green, and blue dots
so they line up at the center of the screen (move the dots in
a horizontal direction).
RG B RGB RGB
RGB
RGB R GB
Y Separation Axis Correction
Magnet Adjustment
1. Input cross-hatch pattern, adjust PICTURE to minimum
and BRIGHTNESS to normal.
2. Adjust the deflection yoke upright so it touches the CRT.
3. Adjust so that the Y separation axis correction magnet on
the neck assembly is symmetrical from top to bottom (open
state).
BMC MAGNET
PURITY
V.STAT
4. Return the deflection yoke to its original position.

—17 —
KV-36FS12/36FS16/36FV16/36FV26
TLH Plate Adjustment
•Input crosshatch pattern.
•Adjust PICTURE QUALITY to standard, PICTURE and
BRIGHTNESS to 50%, and OTHER to standard.
•Adjust the Horizontal Convergence of red and blue dots
by tilting the TLH plate on the deflection yoke.
XCV
WA Board
RV1761
V. S TAT
Y Magnet
1. Adjust XCV core to balance X axis.
2. Adjust YCH VR to balance Y axis.
3. Adjust vertical red and blue convergence with V.TILT (TLV
VR.)
Perform adjustments while tracking items 1 and 2.
4. Adjust Y MAGNET to correct V.BOW Geometery
Distortion.
5. Adjust H-TRP to correct H.Trapezoid Geometry Distor-
tion.
After adjusting items 4 and 5, confirm overall geometry again.
Dynamic Convergence Adjustment
Before starting, perform Vertical and Horizontal Static Conver-
genceAdjustment.
1. Slightly loosen deflection yoke screw.
2. Remove deflection yoke spacers.
3. Move the deflection yoke for best convergence as
shown below:
RGB
BGR
R
G
BR
G
B
BGR RGB
RGB
R
R
R
G
B
G
B
G
B
RGB BGR
4. Tighten the deflection yoke screw.
5. Install the deflection yoke spacers.
Screen-corner Convergence
1. Affix a permalloy assembly corresponding to the
misconvergedareas:
ba
cd
a
b
a-d: screen-corner
misconvergence
c
d

—18 —
KV-36FS12/36FS16/36FV16/36FV26
3-3. FOCUS
1. Input monoscope signal.
2. Set user controls to normal.
3. Set video mode to STANDARD.
4. Set the PICTURE to maximum.
5. Adjust at 325 Mark for best center/corner focus balance.
6. Receive an entire white signal. Make sure Magenta Ring is
at an acceptable level.
Focus
Screen (G2)
35
325
35 MARK
325 MARK
CENTER
CIRCLE
3-4. SCREEN (G2)
1. Input dot pattern from the pattern generator.
2. Set the user controls to NORMAL.
3. Attach the G2-Jig to the C Board.
5. Adjust RCUT, GCUT, BCUT, and SBRT in service mode
with an oscilloscope so that voltages on the red, green, and
blue cathodes are 170 ± 2.0Vdc.
5. Observe the screen and adjust SCREEN (G2) VR to obtain
the faintly visible background of dot signal.
6. Push the TEST + JUMP (+ Channel) to cut off the signal.
The screen should be bright or dark. Brightness of raster
must be increased when adjusting.
7. Adjust screen VR until the screen is slightly cut off, or
scarcely lights up. A signal cannot be seen when the
brightness of the raster is high.
8. Push the JUMP again to release the cut off.
pedestal
GND
170Vdc
170 + 2.0 Vdc
3-5. WHITE BALANCE ADJUSTMENTS
NO.
4
5
6
7
8
9
38
Disp.
RDRV
GDRV
BDRV
RCUT
GCUT
BCUT
SBRT
Item
Red Drive
Green Drive
Blue Drive
Red Cut-off
Green Cut-off
Blue Cut-off
Sub Bright
All Models
*
46
37
14:Fix
10
8
8
1. Set program palette to STANDARD and pust RESET.
2. Input an entire white signal.
3. Set to Service Adjustment Mode.
4. Set the PICTURE and BRIGHT to minimum.
5. Adjust with SBRT if necessary.
6. Set RCUT to "14".
7. Select GCUT and BCUT with and .
8. Adjust with and for the best white balance.
9. Set the PICTURE and BRIGHT to maximum.
10. Select GDRV and BDRV with and .
11. Adjust with 3 and 6 for the best white balance.
12. Write into the memory by pressing then
.
13. Repeat steps 1-12 for GDR4, BDR4, GCU4 and BCU4
using Video 4 input.
* Use values from Sub Contrast Adjustments
NOTE:
White balance should be adjusted after Sub Contrast
because RDRV is also used in Sub Contrast Adjustment.
(See page 27).

—19 —
KV-36FS12/36FS16/36FV16/36FV26
Preparation before Confirmation
1. Using a Variac, apply AC input voltage: 130+2.0/-0.0 VAC.
2. Turn the POWER switch ON.
3. Input a white signal and set the PICTURE and BRIGHT
controls to maximum.
4. Confirm that the voltage of more than 23.0 VDC appears
between TP85 and ground on theA Board.
Hold-Down Operation Confirmation
1. Connect the current meter between Pin 11 of the FBT
(T503) and the PWB land where Pin 11 would normally
attach (See Figure 1 above).
2. Input a dot signal and set PICTURE and BRIGHTNESS
to minimum: IABL = 2175 + 100/ -325 µA.
3. Confirm the voltage of A Board TP91 is 135 ± 1.5 VDC.
4. Connect the digital voltmeter and the DC power supply to
TP85 and ground. (See Figure 1 above).
5. Increase the DC power voltage gradually until the picture
blanks out.
6. Turn DC power source off immediately.
7. Read the digital voltmeter indication
(standard = 27.24 + 0.0/ - 0.1 VDC).
8. Input a white signal and set PICTURE and BRIGHTNESS
to maximum: IABL = 2175 + 100/ -325 µA.
9. Repeat steps 4 to 7.
SECTION 4
SAFETY RELATED ADJUSTMENTS
4-1. R530, R531 CONFIRMATION METHOD
(HOLD-DOWN CONFIRMATION) AND
READJUSTMENTS
Always perform the following adjustments when replacing the
following components marked with a mark on the schematic
diagram:
Hold-Down Readjustment
If the setting indicated in Step 2 of Hold-Down Operation
Confirmation cannot be met, readjustment should be performed
by altering the resistance value of R530, R531 component
marked with
.
Figure 1
3mA DC range
+
-
+
-
A
+
-
11
T503
FBT
TP85
T503
FBT
TP85
R531 R530
DC Power Supply
digital multimeter
ammeter
4-2. B+ VOLTAGE CONFIRMATION AND
ADJUSTMENT
Note: The following adjustments should always be performed
when replacing the following components, which are marked
with on the schematic diagram on the G Board.
G BOARD: IC643, R661
1. Using a Variac, apply AC input voltage: 130 + 2.0/-0.0 VAC
2. Input a monoscope signal.
3. Set the PICTURE control and the BRIGHT control to
initial reset value.
4. Confirm the voltage of G Board CN641 between
pin to ground is less than 136.5 VDC.
5. If step 4 is not satisfied, replace the R661and repeat the
above steps.
Part Replaced ( ) Adjustment ( )
R387, R550, R529, R530, R531,
R532, R533, D519, D520, D521,
IC501,C531,C532, T503, IC351,
IC355, Q301, R356, R359, R361,
D302............................... A Board
IC643,R661 .................. G Board
HVHOLD-DOWN
R530,R531

—20 —
KV-36FS12/36FS16/36FV16/36FV26
5-1. SETTING THE SERVICE ADJUSTMENT
MODE
1. Standby mode (Power off).
2. Press
Display Channel 5Sound volume Power
+
on the Remote Commander (Press each button within a
second).
Service Adjustment Mode In
3. The CRT displays the item being adjusted.
4. Press or on the Remote Commander to select the item.
5. Press or on the Remote Commander to change the data.
6. Press then to write into memory.
Service Adjustment Mode Memory
Disp.
(Item)
Item
data
SERVICE
0
VP
HSIZ
7
TV
Item
order
Green
Red
7. Press then on the Remote Commander to
initialize.
Disp.
(Item)
Item
data
WRITE
0
VP
HSIZ
7
TV
Item
order
8. DO NOT turn off set until SERVICE appears.
SECTION 5
CIRCUIT ADJUSTMENTS
ELECTRICALADJUSTMENTSBYREMOTECOMMANDER
Use the Remote Commander (RM-Y168, RM-Y169, RM-Y170, RM-Y171) to perform the circuit adjustments in this section.
NOTE: Test Equipment Required:
• Pattern generator
• Frequency counter
• Digital multimeter
• Audio oscillator
Carry out step 7 when adjusting
IDs 0 to 7 and when replacing
and adjusting IC002.
5-2. MEMORY WRITE CONFIRMATION
METHOD
1. After adjustment, pull out the plug from the AC outlet, then
replace the plug in theAC outlet again.
2. Turn the power switch ON and set to Service Mode.
3. Call the adjusted items again to confirm they were adjusted.
5-3. ADJUST BUTTONS AND INDICATOR
Disp.
(Item)
Item
data
SERVICE
0
VP
HSIZ
7
TV
Item
order
Mode
MUTING P WER
DISPLAY
1
4
8
3
5
6
ENTER
V LUME
RM-Y170