Sony TRINITRON KV-27FA310 User manual

TRINITRON®COLOR TELEVISION
SERVICE MANUAL BA-6 CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
9-965-960-02
KV-27FA310 RM-Y180 US SCC-S61U-A
KV-27FA310 RM-Y180 CANADA SCC-S59Q-A
KV-27FS120 RM-Y195 US SCC-S61N-A
KV-27FS120 RM-Y195 CANADA SCC-S59J-A
KV-29FA310 RM-Y180 LATIN NORTH SCC-S60V-A
KV-29FA310 RM-Y180 LATIN SOUTH SCC-S60W-A
KV-29FS120 RM-Y195 LATIN NORTH SCC-S73D-A
KV-29FS120 RM-Y195 LATIN SOUTH SCC-S73E-A
☛
☛
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 3/2004
:UPDATED ITEM
REVISION DATE SUBJECT
3/2004 No revisions or updates are applicable at this time.
8/2004 Reissue entire manual
Added KV-27FA310 model for US and Canada
☛

TRINITRON®COLOR TELEVISION
SERVICE MANUAL BA-6 CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
9-965-960-02
KV-27FA310 RM-Y180 US SCC-S61U-A
KV-27FA310 RM-Y180 CANADA SCC-S59Q-A
KV-27FS120 RM-Y195 US SCC-S61N-A
KV-27FS120 RM-Y195 CANADA SCC-S59J-A
KV-29FA310 RM-Y180 LATIN NORTH SCC-S60V-A
KV-29FA310 RM-Y180 LATIN SOUTH SCC-S60W-A
KV-29FS120 RM-Y195 LATIN NORTH SCC-S73D-A
KV-29FS120 RM-Y195 LATIN SOUTH SCC-S73E-A
☛
☛
Self Diagnosis
Supported model
KV-27FS120 KV-29FA310

3
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
TABLE OF CONTENTS
SECTION TITLE PAGE
Specifications ............................................................................................................................................................................. 4
Warnings and Cautions .............................................................................................................................................................. 5
Safety Check-Out ....................................................................................................................................................................... 6
Self-Diagnostic Function............................................................................................................................................................. 7
SECTION 1: DISASSEMBLY............................................................................................................................................................. 9
1-1. Rear Cover Removal (All Except KV-27FA310/29FA310).................................................................................................. 9
1-2. Rear Cover Removal (KV-27FA310/29FA310 Only).......................................................................................................... 9
1-3. Chassis Assembly Removal (All Except KV-27FA310/29FA310)..................................................................................... 10
1-4. Chassis Assembly Removal (KV-27FA310/29FA310 Only) ............................................................................................. 10
1-5. Service Position (All Except KV-27FA310/29FA310) ........................................................................................................11
1-6. Service Position (KV-27FA310/29FA310 Only).................................................................................................................11
1-7. Picture Tube Removal...................................................................................................................................................... 12
Anode Cap Removal Procedure....................................................................................................................................... 12
SECTION 2: SET-UP ADJUSTMENTS............................................................................................................................................ 13
2-1. Beam Landing.................................................................................................................................................................. 13
2-2. Convergence.................................................................................................................................................................... 14
2-3. Focus ............................................................................................................................................................................... 15
2-4. Screen (G2)...................................................................................................................................................................... 16
2-5. Method of Setting the Service Adjustment Mode............................................................................................................. 16
2-6. White Balance Adjustments ............................................................................................................................................. 16
SECTION 3: SAFETY RELATED ADJUSTMENTS......................................................................................................................... 17
3-1.
X R564 Confirmation Method (HV Hold-Down Confirmation) and Readjustments........................................................ 17
3-2. B+ Voltage Confirmation and Adjustment ........................................................................................................................ 17
SECTION 4: CIRCUIT ADJUSTMENTS.......................................................................................................................................... 19
4-1. Setting the Service Adjustment Mode.............................................................................................................................. 19
4-2. Memory Write Confirmation Method ................................................................................................................................ 19
4-3. Remote Adjustment Buttons and Indicators..................................................................................................................... 19
4-4. Service Data Lists............................................................................................................................................................ 20
4-5. ID Map Table.................................................................................................................................................................... 32
4-6. A Board Adjustments........................................................................................................................................................ 32
SECTION 5: DIAGRAMS................................................................................................................................................................. 35
5-1. Circuit Boards Location.................................................................................................................................................... 35
5-2. Printed Wiring Board and Schematic Diagram Information.............................................................................................. 35
5.3. Block Diagram and Schematics....................................................................................................................................... 37
A Board Schematic Diagram ........................................................................................................................................... 38
CW Board Schematic Diagram ....................................................................................................................................... 40
D Board Schematic Diagram (All Except KV-27FA310/29FA310) ................................................................................... 41
HS Board Schematic Diagram(All Except KV-27FA310/29FA310).................................................................................. 42
V Board Schematic Diagram ........................................................................................................................................... 42
GD Board Schematic Diagram (KV-27FA310/29FA310 Only) ......................................................................................... 45
HR Board Schematic Diagram (KV-27FA310/29FA310 Only).......................................................................................... 48
HU Board Schematic Diagram (KV-27FA310/29FA310 Only).......................................................................................... 50
K Board Schematic Diagram (KV-27FA310/29FA310 Only) ........................................................................................... 53
5-4. Semiconductors ............................................................................................................................................................... 54
SECTION 6: EXPLODED VIEWS.................................................................................................................................................... 55
6-1. Picture Tube (KV-27FS120/29FS120 Only)..................................................................................................................... 55
6-2. Chassis (KV-27FS120/29FS120 Only)............................................................................................................................. 56
6-3. Picture Tube (KV-27FA310/29FA310 Only)...................................................................................................................... 57
6-4. Chassis (KV-27FA310/29FA310 Only)............................................................................................................................. 58
SECTION 7: ELECTRICAL PARTS LIST....................................................................................................................................... 59

4
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
SPECIFICATIONS
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) This specification is the maximum wattage.
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
Actual screen size
29-inch measured diagonally
Supplied Accessories
Remote Commander RM-Y195
(All Except KV-27FA310/29FA310 Only)
Remote Commander RM-Y180
(KV-27FA310/29FA310 Only)
Two Size AA (R6) Batteries 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 trade-
marks 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.
© 2004 Dolby Laboratories, Inc.
Dolby, Pro Logic, and the double-D symbol are registered
trademarks of Dolby Laboratories.
Design and specifications are subject to change without notice.
TruSurround™
by SRS ®
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 countries. 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.
KV-27FS120 KV-29FS120
(L. NORTH) KV-29FS120 (L. SOUTH)
KV-27FA310 &
KV-29FA320
(L. NORTH)
KV-29FA320
(L. SOUTH)
Power Requirements 220V, 50/60Hz 120V, 60Hz 220V, 50/60Hz
Number of Inputs/Outputs
Video 1)
S Video 2)
Y,PB, PR3)
Audio 4)
S
p
eaker Out
p
ut
(
W
)
Subwoofe
r
Power Consumption (W)
In Use (Max) 175W 220W 215W
In Standby (Max)5) 1W 1W 1W
Dimensions (W x H x D) mm
in
Mass kg
lbs
30 1/4 x 23 1/4 x 19 5/8 in
45.2 kg
99 lbs 10 oz
7W x 3
20W
2
10W x 2
3
1
1
2
784 x 678 x 520.5 mm
30 7/8 x 26 3/4 x 20 1/2 in
50 kg
110 lbs 4 oz
120V, 60Hz
3
1
1
N/A
180W
1W
768 x 589 x 497 mm

5
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
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.

6
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
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
0.15 F 1.5 K ΩAC
Voltmeter
(0.75 V)
Earth Ground
Trouble Light
AC Outlet Box Ohmmeter Cold-water Pipe
Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.

7
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
Detected Symptoms
SELF-DIAGNOSTIC FUNCTION
*If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is diagnosed first by the
mircrocontroller is displayed on the screen.
**Refer to Screen (G2) Adjustments in Section 2-4. of this manual.
Display of Standby/Timer LED Flash Count
2 times
4 times
5 times
LED ON 0.3 sec.
LED OFF 0.3 sec. LED OFF
3 sec.
Standby/Timer LED
Diagnostic Item Flash Count*
+B Overcurrent 2 times
I-Prot 4 times
IK (AKB) 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 Diagnosis
Supported model
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”.
Power does not turn on
+B overcurrent (OCP)*
I-Prot
IK (AKB)
Does not light
2 times
4 times
5 times
2:0 or 2:1
4:0 or 4:1
5:0 or 5:1
• Power cord is not plugged in.
• Fuse is burned out (F601). (A Board)
• H.OUT (Q505) is shorted. (ABoard)
• IC2751 is shorted. (CW Board)
• +13V is not supplied. (A Board)
• IC545 is faulty. (A Board)
• IC001 is faulty. (A Board)
• Screen (G2) is improperly adjusted.**
No. of times
STANDBY/ TIMER
lamp flashes
Diagnostic Item
Description Self-Diagnositc
Display/
Diagnostic Result
Probable Cause Location
• Power does not come on.
• No power is supplied to the TV.
• AC Power supply is faulty.
• Power does not come on.
• Load on power line is shorted.
• Has entered standby state after horizontal raster.
• Vertical deflection pulse is stopped.
• Power line is shorted or power supply is stopped.
• No raster is generated.
• CRT Cathode current detection reference pulse
output is small.

8
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
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 5 Sound Volume -Power ON
Self-Diagnostic Screen Display
SELF DIAGNOSTIC
2: +B OCP 0
3: +B OVP N/A
4: VSTOP 0
Numeral “0” means that no fault was detected.
5: AKB 1 Numeral “1” means a fault was detected one time only.
101: WDT N/A
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:
Channel 8ENTER
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
IC001
Y/CHROMA JUNGLE
A BOARD
IC545
V. OUT
A BOARD
IC001
SYSTEM
A BOARD
IC002
MEMORY
IK-AKBIN
FROM
CW BOARD
IC2751 PIN 5
I-HLDWN
FROM
A BOARD
IC561
PIN 7
72 O-LED
REF I-Prot
IO-BDAT BDA
DISPLAY
51 378
79
53 5
+B overcurrent (OCP)
Occurs when an overcurrent on the +B (135V) line is detected by pin 72 of IC001 (A Board). If the voltage of pin 72 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.
I-Prot
Occurs when an absence of the vertical deflection pulse is detected by pin 78 of IC001 (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 IC001 (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 that this differs from entering the Service Mode (Sound Volume +).

9
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
1-1. REAR COVER REMOVAL (ALL EXCEPT KV-27FA310/29FA310)
SECTION 1: DISASSEMBLY
2 Screws +BVTP 4X16 TYPE2 TT(B)
Rear Cover
2 Screws +BVTP 4X16 TYPE2 TT(B)
4 Screws +BVTP 4X16 TYPE2 TT(B)
2 Screws +BVTP 4X16 TYPE2 TT(B)
5 Screws +BVTP 3X12 TYPE2 TT(B)
1-2. REAR COVER REMOVAL (KV-27FA310/29FA310 ONLY)
3 Screws +BVTP 4X16 TYPE2 IT3
Rear Cover
3 Screws +BVTP 4X16 TYPE2 IT3
3 Screws +BVTP 4X16 TYPE2 IT3
6 Screws +BVTP 4X16 TYPE2 IT3
5 Screws +BVTP 3X10 TYPE2 IT3

10
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
Chassis Assembly
Claw
1-3. CHASSIS ASSEMBLY REMOVAL (ALL EXCEPT KV-27FA310/29FA310)
1-4. CHASSIS ASSEMBLY REMOVAL (KV-27FA310/29FA310 ONLY)
Chassis Assembly
Claw

11
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
A Board
1
Press on catch tab to release A Board.
2
Disconnect cables as needed to allow A Board to be removed.
GD Board
HU Board
CW Board
V Board
1-5. SERVICE POSITION (ALL EXCEPT KV-27FA310/29FA310)
K Board
1-6. SERVICE POSITION (KV-27FA310/29FA310 ONLY)
A Board
CW Board
1
Press on catch tab to release A Board.
2
Disconnect cables as needed to allow A Board to be removed.
D Board
HS Board
V Board

12
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
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 CW 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].
1-7. 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.
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. Short between anode and coated earth ground strap of 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
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.
10
6
5
4
3
1
2
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.
8
7
9
ab
Anode Button
c

13
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
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.
Set the controls as follows unless otherwise noted:
VIDEO MODE: Pro
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)
5. White Balance
Note Test Equipment Required:
1. Color Bar Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital Multimeter
2-1. BEAM LANDING
Before beginning adjustment procedure:
1.Feed in the white pattern signal.
Adjustment Procedure
1. Input a raster signal with the pattern generator.
2. Loosen the deflection yoke mounting screw, and set the purity
control to the center as shown below:
Purity Control
3. Turn the raster signal of the pattern generator to green.
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. If landing at the corner is not right, adjust by using the disk magnets.
a
c
b
d
b
a
cd
Purity control
corrects this area.
Disk magnets
or rotatable disk
magnets correct
these areas (a-d).
Deflection yoke positioning
corrects these areas.

14
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
2-2. CONVERGENCE
Before starting convergence adjustments:
1 Perform FOCUS, VLIN and VSIZE adjustments.
2. Set BRIGHTNESS control to minimum.
3. Feed in dot pattern.
Vertical Static Convergence
1. Adjust V. STAT magnet to converge red, green and blue dots in the
center of the screen.
2. Tilt the V. STAT magnet and adjust static convergence to open or
close the V. STAT magnet.
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
GB
R
G
RGB
BGR
1
2
b
bb
b
b
b
b
aab
a
a
aa
3
RGB
BGR
Horizontal Static Convergence
If the blue dot does not converge with the red and green dots, perform
the following:
1. Move H STAT VR magnet (a) to correct insufficient H.Static
convergence.
BMC MAGNET
PURITY
V.STAT
H STAT VR
B
G
R
Center dot
V.STAT magnet
RV2750
H.STAT
B
G
R

15
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
Dynamic Convergence Adjustment
Before performing this adjustment, perform Horizontal and Vertical 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:
BGR GB
R
GB
R
R
R
G
B
GB
G
B
R
BGR G
B
G
B
R
R
G
BG
G
B
RB
R
R
4. Tighten the deflection yoke screw.
5. Install the deflection yoke spacers.
TLH Plate Adjustment
1. Input crosshatch pattern.
2. Adjust PICTURE QUALITY to standard, PICTURE and BRIGHTNESS
to 50%, and OTHER to standard.
3 Adjust the Horizontal Convergence of red and blue dots by tilting the
TLH plate on the deflection yoke.
(TLV)
YCH
XCV TLV
CW
Board
RV2750
V.STAT TLH Plate
B R R B
(R)(B) (B)(R) TLH+
TLH-
4. Adjust XCV core to balance X axis.
5. Adjust YCH VR to balance Y axis.
6. Adjust vertical red and blue convergence with V.TILT (TLV VR.)
Note: Perform adjustment 3-6 while tracking items 1 and 2.
Screen-Corner Convergence
1. Affix a permalloy assembly corresponding to the misconverged areas:
ba
cd
a
b
d
a-d: screen-corner
misconvergence
c
2-3. FOCUS
1. Adjust FOCUS control for best pictures.
Focus (FV)
Screen (G2)

16
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
2-4. SCREEN (G2)
1. Input a dot pattern.
2. Set the PICTURE and BRIGHTNESS controls at minimum and
COLOR control at normal.
3. Adjust SBRT, GCUT, BCUT in service mode with an oscilloscope as
shown below so that voltages on the red, green, and blue cathodes
are 160 ± 2VDC.
Pedestal
160 – 2VDC
Ground
±
4. Observe the screen and adjust SCREEN (G2) VR in FBT to obtain
the faintly visible background of dot signal.
2-5. METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE
Service Mode Procedure
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 On
1. The CRT displays the time being adjusted.
Mode Category Display
Item Display
Item
Signal
Type ntsc
service defl
vchp 00000000 00000000
hsiz 16
2. Press 1or 4on the Remote Commander to select the time.
3. Press 3or 6on the Remote Commander to change the data.
4. Press MUTING then ENTER to save into the memory.
Service Adjustment Mode Memory
Turn the set off then on to exit Service Adjustment Mode.
service defl hsiz 16
ntsc
vchp 00000000 00000000
Category Display
Item
Mode Item
Data
Signal
Type write
ENTER
Green
Red
MUTING
2-6. WHITE BALANCE ADJUSTMENTS
1. Input an entire white signal with burst.
2. Set to ServiceAdjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
4. Adjust with SBRT if necessary.
5. Select GCUT and BCUT with 1and 4.
6. Adjust with 3and 6for the best white balance.
7. Set the PICTURE and BRIGHTNESS to maximum.
8. Select GDRV and BDRV with 1and 4.
9. Adjust with 3and 6for the best white balance.
10.Press MUTING then ENTER to save into the memory.

17
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
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 R564 component marked with
X .
+
IABL
ABL
T585
FBT
range
-
ammeter
3.0 mA DC
A
3-2. B+ VOLTAGE CONFIRMATION AND
ADJUSTMENT
Note: The following adjustments should always be performed when
replacing the following components, which are marked with
Y on the
schematic diagram on the A Board:
A BOARD:
Y IC604, PH602
1. Using a Variac, apply AC input voltage: 130 + 2.0 / - 0.0 VAC.
2. Input a DOT pattern at Q.C.
3. Set the PICTURE and the BRIGHTNESS controls to minimum.
4. Confirm the voltage ofA Board between TP-23 & Ground is =135.6
± 1VDC.
5. If step 4 is not satisfied, replace the components listed above, then
repeat steps 1 throught 3.
SECTION 3: SAFETY RELATED ADJUSTMENTS
3-1. XR564 CONFIRMATION METHOD
(HV HOLD-DOWN CONFIRMATION) AND
READJUSTMENTS
The following adjustments should always be performed when replacing
the following components which are marked with
Y on the schematic
diagram:
DY, T585, CRT, IC001, IC561,
IC600, IC604, C506, C507,
C508, C510, C511, C513,
C514, L588, D566, D567,
D568, PH602, R526, R564,
R565, R566, R851, T510,
T511……....A Board
HV HOLD-DOWN
R564
Part Replaced (Y) Adjustment (X)
Preparation Before Confirmation
1. Using a Variac, apply AC input voltage: 120 ± 2 VAC.
2. Turn the POWER switch ON.
3. Input a white signal and set the PICTURE and BRIGHTNESS
controls to maximum.
4. Confirm that the voltage between C566 (+) or TP30 and ground is
more than 99VDC.
Hold-Down Operation Confirmation
1. Connect the current meter between Pin 11 of the FBT (T585) and the
PWB land where Pin 11 would normally attach (See Figure 1 on the
next page).
2. Input a dot signal and adjust theABL current to follow with the
PICTURE and BRIGHTNESS control: IABL = 140 ± 100µA.
3. Confirm the voltage ofA Board TP-23 is 135.6 ± 1.0VDC.
4. Connect the digital voltmeter and the DC power supply via Diode
1SS119 to C566 (+) and ground (See Figure 1 on next page).
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 114.6 +OVDC/-0.3DC).
8. Input 100 IRE White Signal and adjust theABL current to follow with
the PICTURE and BRIGHTNESS control: IABL = 1820µA ± 200µA.
9. Repeat steps 4 through 7.

18
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
Q590
T505
602
R505
C624
C505
C506
D598
C582
L588
Q522
IC565
IC545
IC561
L513
L511
HS522
C525
L525D526
C513
D006
L516
C514
D545
D566
L582
C526
C511
C512
C618
CN515
R
57
4
R
52
8
R
5
29
R5
3
7
R5
5
7
R
5
49
R
53
3
R
53
4
C5
4
8
C
52
9
Q4
0
2
C
53
0
C
54
0
R
52
6
R5
9
3
R5
06
R5
70
R
56
9
R
56
8
R
54
7
R
5
02
R
5
89
R
41
1
R
40
8
R5
9
4
R
58
3
R5
4
6
C
5
61
C2
1
2
C
45
1
C5
71
D5
68
D6
3
0
D
56
9
D
5
28
D
56
7
R
54
0
R5
41
R5
66
D
5
62
R
5
32
R
5
11
C6
4
0
C6
1
0
60
4
6
0
2
C
59
5
C5
4
5
C
5
47
R
5
04
C5
4
4
C5
6
2
C5
2
8
C5
2
7
0
R
5
81
C
50
4
C
5
02
D
6
0
1
L5
1
5
R
5
10
R588
R5
1
5
D624
Q505Q506
R512
R514
R9
0
1
R
5
48
R9
0
2
C
625
T511
PS401
L3
71
L
3
70
J
R
12
J
R
50
5
C651
R503
R591
C
5
90
R609
C
5
97
T585
R4
3
7
R
5
98
Q5
2
1
R575
C5
1
0
D506
E
B
64
13
HDY-
HDY-
HDY+
HDY+
VDY-
VDY+
H-OUT
N/C
200V
GNDHEATER
-13V
GND
+13V
N/C
ABL
GND
GND
HDT
V.OUT
H-OUTH-OUT
1
2
6
7
H.PROT
1
6
135V
TP21
TP28
TP29
TP27
TP19
TP20
TP17
TP16
TP33
TP30
TP24
TP25
E
B
TP23
TP31
TP22
C
E
B
FBT
E
B
()
TP23
X R564 C566
+
-
DIGITAL
MULTIMETER
+
-
POWER
SUPPLY
1SS119
AMMETER
3mA dc range
+
-
A
FIGURE 1

19
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
4-1. SETTING THE 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 Volumne +Power
Service Adjustment Mode On
1. The CRT displays the item being adjusted.
DEF NTSC 1 NVM OK
M65582AMF-101FPZ0
Signal
Type Display
Item #
Category
Item
Data
41
Display
Item H SIZE
2. Press 1or 4on the Remote Commander to select the item.
3. Press 3or 6on the Remote Commander to change the data.
4. Press MUTING then ENTER to write into memory.
Service Adjustment Mode Memory
service defl hsiz 16
ntsc
vchp 00000000 00000000
Category Display
Item
Mode Item
Data
Signal
Type write
1. Press 8then ENTER on the Remote Commander to initialize.
service defl hsiz 16
ntsc
vchp 00000000 00000000
Category Display
Item
Mode Item
Data
Signal
Type write Carry out Step 1 when adjusting
IDs 0-7 and when replacing and
adjusting IC002
2. Press MUTING then ENTER to write into memory.
3. Turn set off then on to exit ServiceAdjustment Mode.
SECTION 4: CIRCUIT ADJUSTMENTS
Electrical AdjustmenTs by Remote Commander
Use the Remote Commander (RM-Y180, RM-Y195) to perform the circuit adjustments in this section.
Test Equipment Required: 1. Pattern generator 2. Frequency counter 3. Digital multimeter 4. Audio oscillator
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
VOLUME (+)
(Service Mode)
6
Item
(Data down)
ENTER
(Enter into
memory)
0
(Remove from
memory)
3
Item
(Data up)
RM-Y180
5
(Device item
down)
MUTING
(Enter into
memory)
1
Disp. (Item up)
2
(Device Item Up)
4
Disp. (Item down)
8
(Initialize)
DISPLAY
(Service Mode)
POWER
(Service Mode)

20
KV-27FA310/27FS120/29FA310/29FS120
KV-27FA310/27FS120/29FA310/29FS120
4-4. SERVICE DATA LISTS
NTSC
Init
Data
VERSION Fix 0 VER Micro
p
rocessor version information =
VAR 1HSIZ H-SIZE ( EW DC : YUV OFFSET ) 47
VAR 2HPOS H POSITION: YUV OFFSET 36
VAR 3 VSIZ V RAMP SIZE: YUV OFFSET 28
VAR 4 VPOS V POSITION (RAMP DC) NOT USEFUL: YUV OFFSET 37
VAR 5VLIN V LINEARITY 32
VAR 6SCOR S CORRECTION 49
VAR 7 VBOW BOW 31
VAR 8 VANG ANGLE 37
VAR 9TRAP EW TRAPESIUM 24
VAR 10 PAMP PARABOLA ( EW PIN ) 49
VAR 11 UPIN UPPER CORNER ( UPPER PIN ) 31
VAR 12 LPIN LOWER CORNER ( LOWER PIN ) 30
VAR 13 TROT TROT 109
VAR 14 HBL
K
FBPBLK ( H BLK MODE SELECT ) 0
VAR 15 RBL
K
HBLK R POS ( HBLK REAR TIMING: YUV OFFSET ) 15
VAR 16 LBL
K
HBLK F POS ( HBLK FRONT TIMING: YUV OFFSET ) 41
FIX 17 VBL
K
VBLK POS ( V BLK WIDTH ) 0
FIX 18 HMSK Macro OFF ( TOP VEND [ WHEN MACROVISION ] PREVENT
OFF ) 0
FIX 19 HDW IIC_HOUT_DUTY ( H PULSE WIDTH [ 25u/19u ] 1
FIX 20 AFC H AFC Gain ( AFC GAIN ) 0
FIX 21 AFC1 H Charge pump ( AFC1 TIME CONSTANT ) 3
FIX 22 AFCW AFC1 PULLIN ( AFC1 PULL IN WIDE ) 0
FIX 23 CDMD V CD MODE ( V DET WINDOW SW TIMING ) 1
FIX 24 HSS SYNC SLICE LVL(H) ( SYNC SLICE LEVEL [ H sepa ] ) 0
FIX 25 VSS SYNC SLICE LVL(L) ( SYNC SLICE LEVEL [ V sepa ] ) 3
FIX 26 SLDN AUTO SLICE DOWN ( AUTO SLICE LEVEL DOWN ) 0
FIX 27 SLUP AUTO SLICE UP ( AUTO SLICE LEVEL UP ) 0
FIX 28 JPSW VJPSW ( JUMP SW ) 0
FIX 29 HOSC H VCO FOR OFFSET ADJUST OFFSET 7
FIX 30 EHT EHT 4
FIX 31 EHTG EHT GAIN ( EHT MODE ) 1
Service
Group
DEF
Fix/
Var No. Name Description