Sony FD Trinitron WEGA KV-27FV300 User manual

TRINITRON®COLOR TELEVISION
SERVICE MANUAL BA-5D CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
KV-27FV300 RM-Y181 US SCC-S65AA
KV-27FV300 RM-Y181 CND SCC-S64AA
KV-29FV300 RM-Y181 LATIN NORTH SCC-S62BA
KV-29FV300 RM-Y181 LATIN SOUTH SCC-S62CA
KV-32FV300 RM-Y182 US SCC-S65BA
KV-32FV300 RM-Y182 CND SCC-S64BA
KV-36FV300 RM-Y182 US SCC-S65CA
KV-36FV300 RM-Y182 CND SCC-S64CA
KV-36FV300 RM-Y182 HAWAII SCC-S67AA
9-965-924-04
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 3/2002
:UPDATED ITEM
REVISION DATE REVISION TYPE SUBJECT
3/2002 No revisions or updates are applicable at this time.
5/2002 Correction - 1 Critical parts incorrectly indentified in Exploded View, Electrical Parts
List, A Board Schematic. (Replace pgs. 31, 55,57,59, & 70)
10/2002 Correction - 2 Exploded View PN correction for Door (Replace pgs. 56, 58, & 60)
12/2004 Updated A Board Schematic to include CN903 and CN905 Connectors for headphones.
(Replace pg. 31)
☛
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TRINITRON®COLOR TELEVISION
SERVICE MANUAL BA-5D CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
9-965-924-04
KV-27FV300 RM-Y181 US SCC-S65AA
KV-27FV300 RM-Y181 CND SCC-S64AA
KV-29FV300 RM-Y181 LATIN NORTH SCC-S62BA
KV-29FV300 RM-Y181 LATIN SOUTH SCC-S62CA
KV-32FV300 RM-Y182 US SCC-S65BA
KV-32FV300 RM-Y182 CND SCC-S64BA
KV-36FV300 RM-Y182 US SCC-S65CA
KV-36FV300 RM-Y182 CND SCC-S64CA
KV-36FV300 RM-Y182 HAWAII SCC-S67AA
Self Diagnosis
Supported model
KV-36FV300 RM-Y182
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KV-27FV300/29FV300/32FV300/36FV300
TABLE OF CONTENTS
Specifications........................................................................................................................................4
Warnings and Cautions.........................................................................................................................5
Safety Check-Out .................................................................................................................................6
Self-Diagnostic Function.......................................................................................................................7
1. Disassembly
1-1. Rear Cover Removal...................................................................................................................10
1-2. Chassis Assembly Removal........................................................................................................10
1-3. Service Position...........................................................................................................................10
1-4. Picture Tube Removal................................................................................................................. 11
Anode Cap Removal Procedure.................................................................................................. 11
2. Set-up Adjustments
2-1. Beam Landing .............................................................................................................................12
2-2. Convergence...............................................................................................................................13
2-3. Focus...........................................................................................................................................15
2-4. Screen (G2).................................................................................................................................15
2-5. White Balance Adjustments.........................................................................................................15
3. Safety Related Adjustments
3-1.
X R530, R531 Confirmation Method (Hold-Down Confirmation) and Readjustments ...............16
3-2. B+ Voltage Confirmation and Adjustment....................................................................................16
4. Circuit Adjustments
4-1. Setting Service Adjustment Mode................................................................................................17
4-2. Memory Write Confirmation Method............................................................................................17
4-3. Remote Adjustment Buttons and Indicators ................................................................................17
4-4. Service Data Lists........................................................................................................................18
4-5. ID Map Table ...............................................................................................................................26
4-6. Board Adjustments ......................................................................................................................26
5. Diagrams
5-1. Circuit Board Location.................................................................................................................29
5-2. Printed Wiring Board and Schematic Diagrams Information.......................................................29
5-3. Block Diagram and Schematics...................................................................................................30
A Board Schematic Diagram .......................................................................................................31
BC Board Schematic Diagram ....................................................................................................39
HU Board Schematic Diagram.....................................................................................................42
P Board Schematic Diagram .......................................................................................................44
HR Board Schematic Diagram.....................................................................................................46
T Board Schematic Diagram........................................................................................................47
C Board Schematic Diagram.......................................................................................................48
V Board Schematic Diagram .......................................................................................................50
GK Board Schematic Diagram.....................................................................................................52
5-4. Semiconductors...........................................................................................................................54
6. Exploded Views
6-1. Chassis (KV-27FV300/29FV300 ONLY)......................................................................................55
6-2. Picture Tube (KV-27FV300/29FV300 ONLY) ..............................................................................56
6-3. Chassis (KV-32FV300 ONLY) .....................................................................................................57
6-4. Picture Tube (KV-32FV300 ONLY)..............................................................................................58
6-5. Chassis (KV-36FV300 ONLY) .....................................................................................................59
6-6. Picture Tube (KV-36FV300 ONLY)..............................................................................................60
7. Electrical Parts List.....................................................................................................................................61
SECTION TITLE PAGE
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KV-27FV300/29FV300/32FV300/36FV300
Television system
American TV standard, NTSC
Channel coverage
VHF: 2-13/ UHF: 14-69/ CATV: 1-125
Picture tube
FD Trinitron
®
tube
Visible screen size
27 inch picture measured diagonally (KV-27FV300/29FV300)
32 inch picture measured diagonally (KV-32FV300)
36 inch picture measured diagonally (KV-36FV300)
Actual screen size
29 inch measured diagonally (KV-27FV300/29FV300)
34 inch measured diagonally (KV-32FV300)
38 inch measured diagonally (KV-36FV300)
Antenna
75-ohm external antenna terminal for VHF/UHF
Supplied Accessories
Size AA (R6) batteries (2)
Remote Control RM-Y181 (1) (KV-27FV300/29FV300)
Remote Control RM-Y182 (1) (KV-32FV300/36FV300)
Wireless Headphones (1) (KV-32FV300/36FV300)
Optional Accessories
TV Stand: SU-27HV2 for (KV-27KV300/29FV300)
SU-32HV3 for (KV-32KV300)
SU-36HV3 for (KV-36KV300)
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.
Design and specifications are subject to change without notice.
TruSurround is a trademark of
SRS Labs, Inc. SRS and the SRS
symbol are registered trademarks
of SRS Labs, Inc. in the United
States and in select foreign coun-
tries. SRS and TruSurround are
incorporated under license from SRS Labs, Inc. and are protected
under United States Patent Nos. 4,748,669 and 4,841,572 with
numerous additional issued and pending foreign patents. Pur-
chase of this product does not convey the right to sell recordings
made with the TruSurround technology.
TruSurround™
by SRS ®
1) 1 Vp-p 75 ohms unbalanced, sync negative
2) Y: 1 Vp-p 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
3) Y: 1.0 Vp-p, 75 ohms, sync negative;
PB: 0.7 Vp-p, 75 ohms
PR: Vp-p, 75 ohms
4) 500 m Vrms (100% modulation), Impedance: 47 kilohms
5
) More than 408 mVrms at the maximum volume setting (variable)
More than 408 mVrms (fix)
KV-32FV300 KV-36FV300
Power Requirements
Number of Inputs/Outputs
Video 1)
Video 2)
Y, PB,P
R
3)
Audio 4)
Audio Out 5)
Monitor Out
peaker Output (W)
Power Consumption (W)
In Use (Max) 230 W 230 W
In tandby 1W 1W
Dimensions (W xHxD)
mm 898 x 682 x 584 mm 1020 x 760 x 640 mm
in 353/8 x26
7/8 x23in 40 1/4 x30x25 1/4 in
Mass
kg 78 kg 102 kg
lbs 171 lbs. 15 oz. 224 lbs. 14 oz.
307/8 x23
11/16 x20 1/2in
48 kg
105 lbs. 13 oz.
220 W
1W
KV-27FV300
KV-29FV300
7.5Wx2,
15 Wsubwoofer
784 x 601.5 x 520 mm
120V, 60 z
3
2
1
3
1
1
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KV-27FV300/29FV300/32FV300/36FV300
WARNINGS AND CAUTIONS
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.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of
this receiver is directly connected to the ac power line.
! SAFETY-RELATED COMPONENT WARNING!!
Components identified by shading and ! mark 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. Circuit adjustments that are critical for safe operation are identified in this manual. Follow these procedures
whenever critical components are replaced or improper operation is suspected.
ATTENTION!!
Apres avoir deconnecte le cap de l’anode, court-circuiter l’anode du tube cathodique et celui de l’anode du cap au chassis metallique
de l’appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
Afin d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout
dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur.
! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifies par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de
pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont
le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont
l’importance est critique pour la securite du fonctionnement sont identifies dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
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KV-27FV300/29FV300/32FV300/36FV300
SAFETY CHECK-OUT
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.
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 milliampmeter. 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).
To Exposed Metal
Parts on Set
AC Voltmeter
(0.75 V)
Earth Ground
0.15 µF1.5 kΩ
g
AC Outlet Box Ohmmeter
Cold-water Pipe
Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.
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KV-27FV300/29FV300/32FV300/36FV300
SELF-DIAGNOSTIC FUNCTION
Display of Standby/Timer LED Flash Count
3 times
2 times
4 times
5 times
9 times
10 times
LED ON 0.3 sec.
LED OFF 0.3 sec. LED OFF
3 sec.
Diagnostic Item Flash Count*
+B Overcurrent 2 times
+B Overvoltage 3 times
V-STOP 4 times
IK (AKB) 5 times
Zero Cross 9 times
9V 10 times
*One flash count is not used for self-diagnostic.
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. If the screen displays a “0”, an error has occurred.
Self Diagnosis
Supported model
Standby/Timer LED
Diagnostic Item
No. of times
TANDBY / TIMER
lamp flashes
Probable Cause Location Detected ymptoms
Power does not turn on Does not light •Power cord is not plugged in.
•Fuse is burned out (F601). (GK Board)
•Power does not come on.
•No power is supplied to the TV.
•AC Power supply is faulty.
+B overcurrent (OCP)* 2 times •.OUT (Q502) is shorted. (A Board)
•IC702 is shorted. (C Board)
•Power does not come on.
•Load on power line shorted.
+B overvoltage (OVP) 3 times •IC501 is faulty. (A Board)
•Ifahighissuppliedtopin2ofIC501.
(A Board)
•as entered standby mode.
I-Prot 4 times •+12V is not supplied. (A Board)
•IC561 is faulty. (A Board)
•as entered standby state after
horizontal raster.
•Vertical deflection pulse is stopped.
•Power line is shorted or power
supply is stopped.
IK (AKB) 5 times •Video OUT (IC561) is faulty. (A Board)
•IC702 is faulty. (C Board)
•Screen (G2) is improperly adjusted. **
•No raster is generated.
•CRT Cathode current detection
reference pulse output is small.
Zero Cross 9 times •No zero cross pulses on pin 45
IC1001. (A Board)
•Power does not come on.
9V Check 10 times •Relay failed (RY600) •Power does not come on.
* 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 2-4 of this manual
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KV-27FV300/29FV300/32FV300/36FV300
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 -Power ON.
Numeral “0” means that no fault was detected.
Numeral “1” means a fault was detected one time only.
SELF DIAGNOSIS
2: +B OCP 0
3: +B OVP 0
4: VSTOP 0
5: AKB 1
9: ZCD 0
10: 9VON 0
101: WDT 0
Serial: xxxxxxx
Model: xxxxxxx
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
IC301
Y/C ROMA JUNGLE
A BOARD
IC561
V. OUT
TO V BOARD
Q904
BASE
A BOARD
Q651
A BOARD
IC001
SYSTEM
A BOARD
IC003
MEMORY
IK-AKBIN
VM-OUT
FROM
C BOARD
IC702 PIN 5
FROM
A BOARD
Q003
COLLECTOR
P( LDWN)
SDA
A BOARD
FROM
Q530
33 O-LED
REF I-OCP
IO-BDAT
BDA
DISPLAY
36 48
31 3
61 27
59
26 5
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KV-27FV300/29FV300/32FV300/36FV300
+B overcurrent (OCP)
Occurs when an overcurrent on the +B (135V) line is detected by pin 48 of IC001 (A Board). If the voltage of pin 48 of IC001 (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 a high is felt onpin 2 of IC501 (A Board).
I-PROT
Occurs when an absence of the vertical deflection pulse is detected by pin 31 of IC301 (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 IC301 (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).
Zero Cross
Check Q691 collector (GK Board) 7.5V STBY goes to 0V when the set is turned on.
9V Check
Check Q691 collector (GK Board) 7.5V STBY goes to 0V when the set is turned on.
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KV-27FV300/29FV300/32FV300/36FV300
1-1. REAR COVER REMOVAL
1-2. CHASSIS ASSEMBLY REMOVAL
1-3. SERVICE POSITION
SECTION 1: DISASSEMBLY
Rear Cover
Claw Chassis Assembly
A Board
GK Board
7 Screws
+BVTP 4 x 16
C Board
4 Screws
+BVTP 4 x 16
4 Screws
+BVTP 4 x 16
4 Screws
+BVTP 4 x 16
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KV-27FV300/29FV300/32FV300/36FV300
1. Discharge the anode of the CRT and remove the anode cap.
2. Unplug all interconnecting leads from the deflection yoke,
neck assembly, degaussing coils and CRT grounding strap.
3. Remove the Sub-Woofer Assemblies.
4. Remove the C Board from the CRT.
5. Remove the chassis assembly.
6. Loosen the neck assembly fixing screw and remove.
7. Loosen the deflection yoke fixing screw and remove.
8. Place the set with the CRT face down on a cushion and
remove the degaussing coil holders.
9. Remove the degaussing coils.
10.Remove the CRT grounding strap and spring tension devices.
11. 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].
1-4. PICTURE TUBE REMOVAL
WARNING: BEFORE REMOVING THE ANODE CAP
High voltage remains in the CRT even after the power is disconnected. To avoid electric shock,
discharge CRT before attempting to remove the anode cap. Short between anode and CRT
coated earth ground strap.
Coated
Earth
Ground
Strap
ANODE CAP REMOVAL PROCEDURE
WARNING: High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove
the anode cap. After removing the anode cap, short circuit to either the metal chassis, CRT shield, or carbon painted on the CRT.
NOTE: After removing the anode cap, 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.
REMOVAL PROCEDURES
a
b
Anode Button
c
Turn up one side of the rubber cap in
the direction indicated by arrow a . Use your thumb to pull the rubber cap firmly in the direction indicated
by arrow b .
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 .
HOW TO HANDLE AN ANODE CAP
1. Do not use sharp objects which may cause damage to the surface of the anode
cap.
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.
3. Do not force turn the foot of the rubber cover. This may cause the shatter-hook
terminal to protrude and damage the rubber.
11 12
4
5
6
78
9
10
3
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KV-27FV300/29FV300/32FV300/36FV300
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
SECTION 2: SET-UP ADJUSTMENTS
Perform the adjustments in order as follows:
1. Beam Landing
2. Convergence
3. Focus
4. Screen (G2)/White Balance
Test Equipment Required:
1. Color Bar Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital Multimeter
5. Oscilloscope
6. CRTAnalyzer
2-1. BEAM LANDING
Preparation:
• Input a white pattern signal.
• Face the picture tube in an East or West direction to reduce the
influence of geomagnetism.
NOTE: Do not use the hand degausser; 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:
Purity Control
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
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KV-27FV300/29FV300/32FV300/36FV300
2-2. 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
R G B
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
a
a
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. S TAT
4. Return the deflection yoke to its original position.
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KV-27FV300/29FV300/32FV300/36FV300
DYNAMIC CONVERGENCE ADJUSTMENT
Before starting, perform Vertical and Horizontal Static Convergence
Adjustment.
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 misconverged areas:
ba
cd
a
b
a-d: screen-corner
misconvergence
c
d
TLH PLATE ADJUSTMENT
Preparation:
• 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
RV701
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 Geometry Distortion.
5. Adjust H-TRP to correct H.Trapezoid Geometry Distortion.
After adjusting items 4 and 5, confirm overall geometry again.
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— 15 —
KV-27FV300/29FV300/32FV300/36FV300
2-3. 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
2-4. 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.
4. 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
2-5. WHITE BALANCE ADJUSTMENTS
Adj. NO. Disp. Item All Models
VID_ADJ 0 RDRV Red Drive 41
VID_ADJ 1 GDRV Green Drive 32
VID_ADJ 2 BDRV Blue Drive 29
VID_ADJ 3 RCUT Red Cut-off 31
VID_ADJ 4 GCUT Green Cut-off 14
VID_ADJ 5 BCUT Blue Cut-off 17
VP2 4 SBRT Sub Bright 16
1. Set program palette to STANDARD and push 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 3and 5.
8. Adjust by pressing 1and 4for 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 3then 5.
13.Repeat steps 1-12 for GDR4, BDR4, GCU4 and BCU4 using
Video 4 input.
* Use values from Sub Contrast Adjustments
White balance should be adjusted after Sub Contrast because
RDRV is also used in Sub Contrast Adjustment. (See page 22).
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— 16 —
KV-27FV300/29FV300/32FV300/36FV300
3-1. XR530, R531 CONFIRMATION METHOD
(HOLD-DOWN CONFIRMATION) AND
READJUSTMENTS
Always perform the following adjustments when replacing the following
components marked with a
Y mark on the schematic diagram:
A BOARD: HV HOLD DOWN
R550, T503, T504, D519,
IC501, R533, D521, R532,
D520, C531, R529, R530,
R531, C532
R530, R531
Part Replaced (  ) Adjustment (  )
PREPARATION BEFORE CONFIRMATION
1. Using a Variac, apply AC input voltage: 120+2.0 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 the A 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).
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.
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
X .
3mA DC range
+
-
+
-
A
+
-
FBT
TP85
T503
FBT
TP85
R531 R530
DC Power Supply
digital multimeter
ammeter
Figure 1
3-2. B+ VOLTAGE CONFIRMATION AND
ADJUSTMENT
Always perform the following adjustments when replacing the following
components, which are marked with
Y on the schematic diagram on
the GK Board:
GK BOARD: IC600, PH602
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
minimum.
4. Confirm the voltage on A Board between TP23 and ground is less
than 136.5 VDC.
5. If step 4 is not satisfied, replace R530 and R531 onABoard and
repeat the above steps.
SECTION 3: SAFETY RELATED ADJUSTMENTS
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— 17 —
KV-27FV300/29FV300/32FV300/36FV300
4-1. SETTING SERVICE ADJUSTMENT MODE
1. Standby mode (Power off).
2. Press the following buttons on the remote commander within a
second of each other:
DISPLAY Channel 5Sound Volume +Power
SERVICE ADJUSTMENT MODE IN
3. The CRT displays the item being adjusted.
4. Press 1or 2on the Remote Commander to select the item.
5. Press 3or 6on the Remote Commander to change the data.
6. Press MUTING then ENTER 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.
4-2. MEMORY WRITE CONFIRMATION
METHOD
1. After adjustment, pull out the plug from theAC outlet, then replace
the plug in the AC outlet again.
2. Turn the power switch ON and set to Service Mode.
3. Call the adjusted items again to confirm they were adjusted.
4-3. REMOTE ADJUSTMENT BUTTONS AND
INDICATORS
SECTION 4: CIRCUIT ADJUSTMENTS
ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER
Use the Remote Commander (RM-Y181, RM-Y182) to perform the circuit adjustments in this section.
Test Equipment Required: 1. Pattern generator 2. Frequency counter 3. Digital multimeter 4. Audio oscillator
RM-Y182
MUTING POWER
(Enter into
memory) (Service Mode)
DISPLAY
1
2
3
4
5
6
8
0
VOLUME (+)
ENTER
(Service Mode)
Disp. (Item up)
(Device Item Up)
Disp. (Item down)
(Initialize)
Item
(Data up)
Item
(Data down)
(Device item
down)
(Enter into
memory)
(Remove from
memory)
(Service Mode)
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— 18 —
KV-27FV300/29FV300/32FV300/36FV300
SERVICE DATA LISTS4-4.
Non-Volatile Memory (NVM) Reference for BA5D ervice List
lave ub Init
Addr Addr Data
VERSION 0 VER 11111111 = = 0
lave ub Fix Var lave ub lave ub
Addr Addr Data Data Addr Addr Data Addr Addr Data
VP1 0 SIZ Var SIZE (11/ 2-7) 11111100 A4 A8 A4 B4
1 POS Var POS (12 / 2-7) 11111100 A4 A9 A4 B5
2 VBOW Var AFC BOW (16 / 4-7) 11110000 A4 AE A4 BA
3 VANG Var AFC ANGLE (16 / 0-3) 00001111 A4 AE A4 BA
4 VTRP Var TRAPEZIUM (20 / 3-7) 11111000 A4 AF A4 BB
5 TRP Var . TRAPEZOID (15 / 4-7) 11110000 A4 AD A4 B9
6 TROT Fix TILT ROTATION (0-63) 11111100 A4 A4 A4 B0
7 PAMP Var PIN AMP (13 / 2-7) 11111100 A4 AA A4 B6
8 UPIN Var UP-CPIN (14 / 2-7) 11111100 A4 AB A4 B7
9 LPIN Var LO-CPIN (1C / 2-7) 11111100 A4 AC A4 B8
10 VSIZ Var V SIZE (0E / 2-7) 11111100 A4 A5 A4 B1
11 VPOS Var V POSITION (0E / 2-7) 11111100 A4 A6 A4 B2
12 VLIN Var V LINEARITY (10 / 0-3) 00001111 A4 A7 A4 B3
13 SCOR Var S CORRECTION (10 / 4-7) 11110000 A4 A7 A4 B3
14 VZOM Fix 16:9 CRT Z Mode on/off 10000000 A4 85
15 E T Fix Vertical igh-Voltage Compensation 00001111 A4 80
16 ASP Fix Aspect Ratio control (4:3 Mode) 11111100 A4 FB 47
17 ASP1 Fix Aspect Ratio control (16:9 Mode) 11111100 A4 FC 47
18 SCRL Fix 16:9 CRT Z Mode Trans. Scroll 00111111 A4 86
19 BLK Fix orizontal Blanking on/off 00010000 A4 85
20 LBLK Fix Left Blanking Adjustment 11110000 A4 80
21 RBLK Fix Rigth Blanking Adjustment 00001111 A4 81
22 DW Fix orizontal Drive Pulse Width 00001000 A4 85
23 EWDC Fix "Parabola" EW, D.C. Adjustment 00000100 A4 88
24 LVLN Fix Lower Screen BTM Vertical Line Adj. 11110000 A4 81
25 UVLN Fix Uppe Screen BTM Vertical Line Adj. 00001111 A4 82
26 INTL Fix INTERLACE 00110000 A4 84
27 OSC Fix orizontal VCO Oscillation Freq. 11110000 A4 82
28 VSS Fix Vertical Sync Slice Level 11000000 A4 84
29 SS Fix orizontal Sync Slice Level 00001000 A4 88
30 MSK Fix For Macro Vision 00010000 A4 88
31 VTMS Fix Select Signal VTIM Pin 01100000 A4 85
32 TCMD Fix Vertical Count Down Mode Switching (for
TV) 00000011 A4 8C
33 VCMD Fix Vertical Count Down Mode Switching (for
Video) 00000011 A4 8D
34 AFC Fix AFC Loop Gain Switching 11000000 A4 86
35 FIFR Fix Field Frequency 11000000 A4 87
36 VBLK Fix VBLKW 00000011 A4 88
37 TSW Fix -Trap Switch : NEW 00100000 A4 88
Description Bit Mask
Description
Microprocessor version information
Common
ervice
Group No.
ervice
Group No. Name Bit Mask
Name Fix /
Var
PAL-NNT C / PAL-MCommon
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— 19 —
KV-27FV300/29FV300/32FV300/36FV300
SERVICE DATA LISTS
lave ub Fix Var lave ub lave ub lave ub
Addr Addr Data Data Addr Addr Data Addr Addr Data Addr Addr Data
VP2 0 REFP Fix REFP 01000000 A4 88 0
1 JPSW Fix Jump SW 00000001 = =
2 S UE Var Sub UE adjustment 11110000 A4 8C
3 SCOL Var Sub COLOR adjustment 00001111 A4 8E A4 90 7 A4 92
4 SBRT Var Sub BRIG TNESS adjustment 00011111 A4 87
5 AXPL Fix Axis PAL 00000001 A4 89 0
6 AXNT Fix Axis NTSC 00000010 A4 89 1
7 CBPF Fix Chroma BPF on/off 00000100 A4 89 1
8 CTRP Fix Y TRAP FILTER on/off 00000001 = =
9 COFF Fix Color On/off 00000010 = =
10 KOFF Fix Set Color Killer 00100000 A4 89 0
11 SS P Fix Sub S ARPNESS 11110000 A4 83
12 TSPF Fix S ARPNESS Circuit Fo (for TV) 00001100 A4 8C
13 VSPF Fix S ARPNESS Circuit Fo (for Video) 00001100 A4 8D
14 PREL Fix Pre-Shoot/ Over-Shoot 01000000 A4 89 1
15 ABLM Fix ABL Mode Switch 10000000 A4 89 1
16 VT Fix ABL CD V T Switching 00000001 = =
17 YDEL Fix Y Delay Time Control 00001111 A4 84
18 NCOL Fix No Color ID 00000001 A4 85
19 FSC Fix FSC Out on/off 00000010 A4 85 1
20 KID Fix Killer ID Control on/off 00000100 A4 85 0
lave ub Fix Var lave ub lave ub lave ub
Addr Addr Data Data Addr Addr Data Addr Addr Data Addr Addr Data
VID_ADJ 0 RDRV var R DRIVE (0A / 7-2) 11111100 A4 9E 41
1 GDRV Var G DRIVE (0B / 7-2) 11111100 A4 9F
2 BDRV Var B DRIVE (0C / 7-2) 11111100 A4 A0
3 RCUT Var R CUT OFF ( 07 / 7-2) 11111100 A4 A1 31
4 GCUT Var G CUT OFF (08 / 7-2) 11111100 A4 A2
5 BCUT Var B CUT OFF (09 / 7-2) 11111100 A4 A3
6 SCON Var Sub Contrast adjusment 00001111 A4 8A
7 C UE Var Sub UE adjustment for TV 00011111 A4 94 16
8 CCOL Var Sub COLOR adjustment for TV 00011111 A4 8F 18 A4 91 18 A4 93 23
9 UOFS Var YUV U offset 00001111 A4 8B
10 VOFS Var YUV V offset 11110000 A4 8B
11 RON Fix R ON (01 / 3) 00001000 = =
12 GON Fix G ON (01 / 2) 00000100 = =
13 BON Fix B ON (01 / 1) 00000010 = =
14 UEV Var Sub UE adjustment for Video 11110000 A4 8D
15 COLV Var Sub COLOR adjustment for Video 11110000 A4 8E A4 90 A4 92
NT C PAL-M PAL-NCommon
Description Bit Mask
ervice
Group No. Name Fix /
Var Description Bit Mask
ervice
Group No. Name Fix /
Var
PAL-NCommon NT C PAL-M
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— 20 —
KV-27FV300/29FV300/32FV300/36FV300
SERVICE DATA LISTS
lave ub Fix
Addr Addr Data
COL_TMP 0 GDOF Fix G DRIVE Offset 11111000 A4 9A 4
1 BDOF Fix B DRIVE Offset 11111000 A4 9B 15
2 GCOF Fix G CUT Offset 11111000 A4 9C 7
3 BCOF Fix B CUT Offset 11111000 A4 9D 14
4 DCOL Fix Dinamic Color 00000010 = =
lave ub Fix
Addr Addr Data
PIC_IMP 0 BLAD Fix Black area detect (01 / 6-7) 11000000 A4 09 0
1 SRTS Fix SRT level (01 / 4-5) 00110000 A4 09 3
2 YNR Fix YNR(01 / 2) 00000100 A4 09 1
3 GIRE Fix Gamma correction(01 / 0-1) 00000011 A4 09 3
4 DAC1 Fix DAC1(02 / 7) 10000000 A4 0A 0
5 DAC2 Fix DAC2(02 / 6) 01000000 A4 0A 0
6 VMGA Fix VM on 1226 (02/5-4) 00110000 A4 0A 0
7 GCUR Fix Gamma curve(02 / 2) 00000100 A4 0A 1
8 BLKC Fix Black Compensation (02 / 1) 00000010 A4 0A 1
9 TEST Fix TEST(03 / 6-7) 11000000 A4 0B 3
10 RS Fix RS (03 / 3-5) 00111000 A4 0B 0
11 RTC Fix RTC(03 / 0-2) 00000111 A4 0B 2
12 APAC Fix APAC 10000000 A4 0B 0
13 SRT Fix SRT bit for Dynablack = igh 10000000 A4 5C 1
14 SRTL Fix SRT bit for Dynablack = Low 10000000 A4 5D 1
15 SRTO Fix SRT bit for Dynablack = Off 10000000 A4 5E 0
16 S P Fix Sharpness level for Dynablack = igh 01111111 A4 5C 54
17 S PL Fix Sharpness level for Dynablack = Low 01111111 A4 5D 43
18 S PO Fix Sharpness level for Dynablack = Off 01111111 A4 5E 0
lave ub Fix lave ub Fix lave ub Fix lave ub Fix
Addr Addr Data Addr Addr Data Addr Addr Data Addr Addr Data
PALETTE 0 VPIC Fix User picture setting 0:min, 63: max 11111100 A4 5F 63 A4 65 50 A4 6B 38 A4 71 63
1 VBRT Fix User brightness setting 0:min, 63: max 11111100 A4 60 31 A4 66 31 A4 6C 31 A4 72 31
2 VCOL Fix User color setting 0:min, 63: max 11111100 A4 61 35 A4 67 31 A4 6D 31 A4 73 40
3 VS P Fix User sharpness setting 0:min, 63: max 11111100 A4 62 31 A4 68 31 A4 6E 34 A4 74 31
4 VVM Fix 0: OFF, 1: Low, 2: igh, 3: N/A 00000011 A4 5F 2 A4 65 1 A4 6B 0 A4 71 2
5 VTRI Fix 0: Cool, 1: Nutral, 2: Warm, 3: N/A 00000011 A4 60 0 A4 66 1 A4 6C 2 A4 72 0
6 VGMA Fix 0: OFF, 1: Low, 2: Mid, 3: Max 00000011 A4 63 2 A4 69 2 A4 6F 2 A4 75 2
7 VNRM Fix 0: 3D, 1: 2D 00000010 A4 61 0 A4 67 0 A4 6D 0 A4 73 0
8 VYDC Fix DC Transmission Ratio 0,1: 100%, 2:
92%, 3: 85 00000011 A4 62 3 A4 68 3 A4 6E 2 A4 74 3
9 VVEN Fix Vertoca; Enhancement 00011100 A4 63 5 A4 69 3 A4 6F 3 A4 75 5
10 V K0 Fix orizontal Peaking 0:On, 1:Off 00000001 A4 61 0 A4 67 0 A4 6D 0 A4 73 0
11 VDBK Fix User Dynablack 0: OFF, 1: Low, 2: igh,
3: N/A 01100000 A4 63 2 A4 69 1 A4 6F 1 A4 75 1
12 VYPL Fix Y-Peaking Limit 00000011 A4 64 1 A4 6A 0 A4 70 0 A4 76 1
Palette = PORTPalette = TANDARD Palette = MOVIE
Description Bit Mask
Common
ervice
Group No. Name Fix /
Var Description Bit Mask
Palette = VIVID
ervice
Group No. Name Fix /
Var
Description Bit Mask
Common
ervice
Group No. Name Fix /
Var
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