Warnings and Cautions .............................................................................................................................................................. 5
1-5. Service Position (All Except KV-29FA310)........................................................................................................................11
1-6. Service Position (KV-29FA310 Only) ................................................................................................................................11
Anode Cap Removal Procedure....................................................................................................................................... 12
2-5. Method of Setting the Service Adjustment Mode ............................................................................................................. 16
2-6. White Balance Adjustments ............................................................................................................................................. 16
SECTION 3: SAFETY RELATED ADJUSTMENTS......................................................................................................................... 17
3-2. B+ Voltage Confi rmation and Adjustment ........................................................................................................................ 17
4-1. Setting the Service Adjustment Mode .............................................................................................................................. 19
4-3. Remote Adjustment Buttons and Indicators ..................................................................................................................... 19
4-4. Service Data Lists ............................................................................................................................................................ 20
4-4. ID Map Table .................................................................................................................................................................... 32
4-5. A Board Adjustments........................................................................................................................................................ 32
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. Purchase of this product does not convey the right to sell recordings
made with the TruSurround technology.
by SRS
™
®
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.
KV-27FS120/29FA310/29FS120
Design and specifi cations are subject to change without notice.
4
KV-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 identifi ed 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 identifi ed 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.
Afi n 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 identifi es 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 identifi es dans le present manuel. Suivre ces procedures lors de chaque
remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
KV-27FS120/29FA310/29FS120
5
SAFETY CHECK-OUT
KV-27FS120/29FA310/29FS120
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 specifi ed 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 Ω
Earth Ground
Figure A. Using an AC voltmeter to check AC leakage.Figure B. Checking for earth ground.
KV-27FS120/29FA310/29FS120
AC
Voltmeter
(0.75 V)
Trouble Light
AC Outlet Box
Ohmmeter
Cold-water Pipe
6
KV-27FS120/29FA310/29FS120
SELF-DIAGNOSTIC FUNCTION
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 fl ash. The number
of times the LED fl ashes translates to a probable source of the problem. A defi nition of the STANDBY/TIMER LED fl ash 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 fl ash 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 fi rst 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
Power does not turn on
+B overcurrent (OCP)*
I-Prot
IK (AKB)
STANDBY/ TIMER
No. of times
lamp fl ashes
Does not light
2 times
4 times
5 times
Self-Diagnositc
Display/
Diagnostic Result
2:0 or 2:1
4:0 or 4:1
5:0 or 5:1
Probable Cause Location
• Power cord is not plugged in.
• Fuse is burned out (F601). (A Board)
• H.OUT (Q505) is shorted. (A Board)
• 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.**
Detected Symptoms
• Power does not come on.
• No power is supplied to the TV.
• AC Power supply is faulty.
• Power does not come on.
• Load on power line is shorted.
• Has entered standby state after horizontal raster.
• Vertical defl ection 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.
*If a +B overcurrent is detected, stoppage of the vertical defl ection is detected simultaneously. The symptom that is diagnosed fi rst 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 fl ash 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 fl ashing.
KV-27FS120/29FA310/29FS120
7
KV-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 confi rmed, it is possible to bring up past
occurrences of failure on the screen for confi rmation.
To Bring Up Screen Test
In standby mode, press buttons on the Remote Commander sequentially, in rapid succession, as shown below:
Display
Self-Diagnostic Screen Display
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
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.
Channel
SELF DIAGNOSTIC
2: +B OCP 0
3: +B OVP N/A
4: VSTOP 0
5: AKB 1
101: WDT N/A
8
ENTER
5
Sound Volume
Numeral “0” means that no fault was detected.
Numeral “1” means a fault was detected one time only.
-
Power ON
Note that this differs from entering the Service Mode (Sound Volume
+
).
Self-Diagnostic Circuit
FROM
CW BOARD
IC2751 PIN 5
A BOARD
IC001
Y/CHROMA JUNGLE
51
IK-AKBIN
A BOARD
IC545
V. OUT
REF
3
A BOARD
IC001
SYSTEM
IO-BDAT
78
I-Prot
53
A BOARD
IC002
MEMORY
5
BDA
FROM
72
A BOARD
IC561
PIN 7
+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 defl ection 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.
I-HLDWN
O-LED
79
DISPLAY
*(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).
Disconnect cables as needed to allow A Board to be removed.
KV-27FS120/29FA310/29FS120
V Board
CW Board
HS Board
1-6. SERVICE POSITION (KV-29FA310 ONLY)
1
Press on catch tab to release A Board.
2
Disconnect cables as needed to allow A Board to be removed.
D Board
A Board
CW Board
K Board
KV-27FS120/29FA310/29FS120
HU Board
V Board
GD Board
A Board
11
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.
1
10
1. Discharge the anode of the CRT and remove the anode cap.
2. Unplug all interconnecting leads from the defl ection yoke, neck
8
7
3
6
2
5
9
4
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 fi xing screw and remove.
6. Loosen the defl ection yoke fi xing 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 fi xing screws [located on each CRT
corner] and remove the CRT [Take care not to handle the CRT
by the neck].
KV-27FS120/29FA310/29FS120
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
c
b
a
Anode Button
Turn up one side of the rubber cap in
the direction indicated by arrow
a
.
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 fi tting 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.
Use your thumb to pull the rubber
cap fi rmly 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
KV-27FS120/29FA310/29FS120
12
SECTION 2: SET-UP ADJUSTMENTS
KV-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
2-1. BEAM LANDING
Before beginning adjustment procedure:
1. Degauss the entire screen.
2. Feed in the white pattern signal.
Adjustment Procedure
1. Input a raster signal with the pattern generator.
2. Loosen the defl ection yoke mounting screw, and set the purity
control to the center as shown below:
Purity Control
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
6. Switch over the raster signal to red and blue and confi rm the
condition.
7. When the position of the defl ection yoke is determined, tighten it with
the defl ection yoke mounting screw.
8. If landing at the corner is not right, adjust by using the disk magnets.
3. Turn the raster signal of the pattern generator to green.
4. Move the defl ection 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 defl ection yoke forward, and adjust so that the entire
screen becomes green.
KV-27FS120/29FA310/29FS120
Purity control
corrects this area.
Disk magnets
or rotatable disk
magnets correct
these areas (a-d).
Deflection yoke positioning
b
d
a
b
cd
corrects these areas.
a
c
13
KV-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.
Center dot
RV2750
R
B
G
H.STAT
R
G
B
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 insuffi cient H.Static
convergence.
H STAT VR
V. STAT
BMC MAGNET
PURITY
V.STAT magnet
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:
1
a
b
2
a
a
b
B
G
R
b
b
B
G
R
a
RGB
b
BGR
3
b
a
a
R
b
B
G
G
B
KV-27FS120/29FA310/29FS120
b
R
14
Dynamic Convergence Adjustment
Before performing this adjustment, perform Horizontal and Vertical Static
Convergence Adjustment.
1. Slightly loosen defl ection yoke screw.
2. Remove defl ection yoke spacers.
3. Move the defl ection yoke for best convergence as
shown below:
G
B
R
R
G
B
BGR
B
G
R
R
B
G
R
B
G
KV-27FS120/29FA310/29FS120
B R R B
(R)(B) (B)(R)
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.
TLH+
TLH-
Screen-Corner Convergence
BGR
B
G
R
B
G
R
B
R
G
B
R
G
R
GB
4. Tighten the defl ection yoke screw.
5. Install the defl ection 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 defl ection yoke.
RV2750
V.STAT
TLH Plate
1. Affi x a permalloy assembly corresponding to the misconverged areas:
b
a
ba
a-d: screen-corner
misconvergence
c
d
c
d
2-3. FOCUS
1. Adjust FOCUS control for best pictures.
Focus (FV)
Screen (G2)
CW
Board
YCH
XCV
(TLV)
KV-27FS120/29FA310/29FS120
TLV
15
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.
±
160 – 2VDC
Pedestal
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
KV-27FS120/29FA310/29FS120
2-6. WHITE BALANCE ADJUSTMENTS
1. Input an entire white signal with burst.
2. Set to Service Adjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
4. Adjust with SBRT if necessary.
ENTER
1
and 4 .
1
4
and
.
to save into the memory.
5. Select GCUT and BCUT with
3
6. Adjust with
6
and
for the best white balance.
7. Set the PICTURE and BRIGHTNESS to maximum.
8. Select GDRV and BDRV with
9. Adjust with
10. Press
3
and 6 for the best white balance.
MUTING
then
1. Standby mode (power off).
2. Press
Display
Channel
Sound Volume
5
Power
+
on the Remote Commander (press each button within a second).
Service Adjustment Mode On
1. The CRT displays the time being adjusted.
2. Press
3. Press
4. Press
Display
hsiz16
to save into the memory.
service
ntsc
vchp
then
Category
defl
00000000
ENTER
Mode
Signal
Type
1
or 4 on the Remote Commander to select the time.
3
or 6 on the Remote Commander to change the data.
MUTING
Item
00000000
Display
Item
Service Adjustment Mode Memory
Turn the set off then on to exit Service Adjustment Mode.
Mode
Category
Display
Item
Item
Data
service defl hsiz16
Signal
Type
ntsc
vchp 00000000 00000000
write
KV-27FS120/29FA310/29FS120
MUTING
ENTER
Green
Red
16
SECTION 3: SAFETY RELATED ADJUSTMENTS
KV-27FS120/29FA310/29FS120
3-1. X R564 CONFIRMATION METHOD
(HV HOLD-DOWN CONFIRMATION) AND
READJUSTMENTS
The following adjustments should always be performed when replacing
the following components which are marked with
diagram:
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. Confi rm that the voltage between C566 (+) or TP30 and ground is
more than 99VDC.
Hold-Down Readjustment
If the setting indicated in Step 2 of Hold-Down Operation Confi rmation
cannot be met, readjustment should be performed by altering the
resistance value of R564 component marked with
X
.
T585
FBT
ammeter
3.0 mA DC
range
ABL
+
-
A
IABL
3-2. B+ VOLTAGE CONFIRMATION AND
ADJUSTMENT
Note: The following adjustments should always be performed when
replacing the following components, which are marked with
schematic diagram on the A Board:
A BOARD: Y IC604, PH602
Y
on the
Hold-Down Operation Confi rmation
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 the ABL current to follow with the
PICTURE and BRIGHTNESS control: IABL = 140 ± 100µA.
3. Confi rm the voltage of A 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
8. Input 100 IRE White Signal and adjust the ABL current to follow with
the PICTURE and BRIGHTNESS control: IABL = 1820µA ± 200µA.
9. Repeat steps 4 through 7.
114.6 +OVDC/-0.3DC).
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. Confi rm the voltage of A Board between TP-23 & Ground is =135.6
± 1VDC.
5. If step 4 is not satisfi ed, replace the components listed above, then
repeat steps 1 throught 3.
KV-27FS120/29FA310/29FS120
17
(
)
FIGURE 1
KV-27FS120/29FA310/29FS120
DIGITAL
MULTIMETER
+
-
X
R564
R
5
3
1
0
4
S
P
R
5
1
1
J
R
1
R
4
3
7
0
6
R
C
4
5
1
C
5
D
5
6
5
2
R
5
8
9
T
2
P
4
2
9
L
3
7
0
1
5
6
C
1
5
T
2
8
6
2
R
5
3
2
L
3
7
1
1
1
5
C
R
2
1
5
C
1
1
5
L
1
C
5
3
1
5
L
0
2
B
2
P
5
T
R
5
0
4
R
5
3
3
C
5
4
0
5
S
5
6
5
C
I
C
5
3
0
6
2
5
D
5
2
5
L
5
1
0
6
2
5
C
1
5
C
4
1
5
C
2
H
5
Q
B
5
2
5
C
3
L
5
1
5
R
5
3
7
R
5
6
2
2
R
5
5
2
2
E
C
5
2
7
R
5
4
9
R
5
1
5
6
7
C
5
6
1
R
5
4
6
5
4
5
D
6
R
5
4
8
C
5
4
5
R
9
0
R
5
4
0
0
D
2
7
C
R
5
4
7
6
0
1
5
L
R
5
6
C
5
4
8
1
J
R
5
0
POWER
SUPPLY
+
1SS119
C566
Q
4
0
2
R
4
0
8
R
4
1
1
O
R
.
T
H
P
R
P
T
3
0
6
6
5
D
R
5
2
9
C
5
6
2
C
5
2
9
1
6
5
C
I
C
5
4
4
2
C
5
9
7
1
T
P
V
.
O
U
T
5
4
7
5
4
5
C
I
4
1
C
5
9
5
P
7
T
1
R
9
0
1
5
1
2
C
2
5
2
8
D
5
2
8
D
5
6
1
R
5
8
3
2
8
5
C
P
T
3
3
Q
5
2
1
5
7
5
R
C
5
7
1
R
5
6
8
D
5
6
8
6
7
R
5
7
0
D
5
6
R
R
2
8
5
L
9
5
2
6
R
5
6
5
9
7
4
D
6
3
0
6
0
1
2
0
6
C
6
1
0
0
2
4
TP23
8
9
5
E
R
5
0
R
5
9
3
3
0
5
R
C
5
9
0
1
9
5
R
B
0
9
5
Q
R
5
9
4
T
P
1
3
4
2
6
E
C
C
P
3
T
2
1
6
8
C
6
4
0
4
2
6
D
4
5
0
5
C
H
-
O
Q
5
C
5
0
4
1
6
5
0
5
R
U
T
E
0
5
6
0
5
C
6
0
5
D
3
4
R
5
0
6
C
5
1
T
2
P
2
0
C
4
1
5
R
2
1
5
R
H
D
T
5
0
5
T
H
B
5
8
8
R
8
5
L
T
U
O
6
0
5
Q
6
G
2
0
0
V
8
N
/
C
V
D
Y
+
P
T
2
1
V
D
Y
-
T
2
P
7
H
D
Y
-
P
T
2
8
H
D
Y
-
H
D
Y
+
T
P
H
D
Y
+
3
1
H
-
O
2
9
1
5
5
N
C
D
R
5
9
8
T
1
P
9
H
E
A
T
E
R
N
D
5
V
U
T
-
1
3
V
G
N
D
G
N
D
G
N
D
5
5
T
+
1
3
V
N
/
C
A
B
L
T
2
P
0
R
5
8
8
F
B
T
1
AMMETER
3mA dc range
A
+
-
KV-27FS120/29FA310/29FS120
18
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
KV-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
5
Sound Volumne
Power
+
Service Adjustment Mode On
1. The CRT displays the item being adjusted.
Item
Data
41
2. Press
3. Press
4. Press
Signal
Category
Display
Item
1
or 4 on the Remote Commander to select the item.
3
or 6 on the Remote Commander to change the data.
MUTING
DEF NTSC 1 NVM OK
M65582AMF-101FPZ0
then
Type
H SIZE
ENTER
Display
Item #
to write into memory.
Service Adjustment Mode Memory
1. Press
Signal
Type
Category
Mode
service defl hsiz16
Signal
Type
8
then
Mode
service defl hsiz 16
ntsc
vchp 00000000 00000000
ntsc
vchp 00000000 00000000
ENTER
Category
on the Remote Commander to initialize.
Display
Item
write
Display
Item
Data
Item
Item
Data
write
Carry out Step 1 when adjusting
IDs 0-7 and when replacing and
adjusting IC002
4-2. MEMORY WRITE CONFIRMATION
METHOD
1. After adjustment, pull out the plug from the AC 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 confi rm they were adjusted.
4-3. REMOTE ADJUSTMENT BUTTONS AND
INDICATORS
MUTING
(Enter into
memory)
1
Disp. (Item up)
2
(Device Item Up)
4
Disp. (Item down)
8
(Initialize)
VOLUME (+)
(Service Mode)
RM-Y180
POWER
(Service Mode)
DISPLAY
(Service Mode)
3
Item
(Data up)
6
Item
(Data down)
5
(Device item
down)
ENTER
(Enter into
memory)
0
(Remove from
memory)
2. Press
MUTING
then
ENTER
to write into memory.
3. Turn set off then on to exit Service Adjustment Mode.
KV-27FS120/29FA310/29FS120
19
20
KV-27FS120/29FA310/29FS120
KV-27FS120/29FA310/29FS120
4-4. SERVICE DATA LISTS
NTSC
Init
Data
VERSIONFix0VER
Micro
p
rocessor version information
=
VAR
1HSIZ
H-SIZE ( EW DC : YUV OFFSET )
47
VAR
2HPOS
H POSITION: YUV OFFSET
36
VAR
3VSIZ
V RAMP SIZE: YUV OFFSET
28
VAR4VPOS
V POSITION (RAMP DC) NOT USEFUL: YUV OFFSET
37
VAR
5VLIN
V LINEARITY
32
VAR
6SCOR
S CORRECTION
49
VAR
7VBOW
BOW
31
VAR
8VANG
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
FIX18 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
FIX29 HOSC
H VCO FOR OFFSET ADJUST OFFSET
7
FIX
30 EHT
EHT
4
FIX
31 EHTG
EHT GAIN ( EHT MODE )
1
NameDescription
Fix/
Var
No.
Service
Group
DEF
21
KV-27FS120/29FA310/29FS120
KV-27FS120/29FA310/29FS120
NTSC
Init
Data
VAR
1VSIZ
V RAMP SIZE
48
VAR
2VPOS
V POSITION ( RAMP DC )
40
VAR
3VLIN
V LINEARITY
26
VAR
4SCOR
S CORRECTION
24
VAR
5TRAP
EW TRAPESIUM
22
VAR
6PAMP
PARABOLA ( EW PIN )
24
VAR
7UPIN
UPPER CORNER ( UPPER PIN )
31
VAR
8LPIN
LOWER CORNER ( LOWER PIN )
31
VAR
9ABLG
ABL GAIN
15
VAR
10SCON
SUB CONTRAST LEVEL
13
VAR
11VPW
JUMP PULSE WIDTH
1
Fix/
Var
No.
Service
Group
Item name & ( Description )Name
16 : 9
22
KV-27FS120/29FA310/29FS120
KV-27FS120/29FA310/29FS120
NTSC
InitVideoYUV16:09
Data
VAR
1RDRV
R DRIVE
64
6464N/A
VAR2GDRV
G DRIVE: GDOF OFFSET ( only Color Temp. "Warm")
454548N/A
VAR3BDRV
B DRIVE: BDOF OFFSET ( only Color Temp. "Warm")
454544N/A
VAR
4RCUT
HARDWARE AKB (R) CMP DATA
120
120120N/A
VAR5GCUT
HARDWARE AKB (G) CMP DATA
919190N/A
VAR6BCUT
HARDWARE AKB (B) CMP DATA
8787105N/A
VAR
7SCON
SUB CONTRAST LEVEL
19
1919N/A
VAR
8SHUE
SUB TINT (HUE)
777
N/A
VAR
9SCOL
SUB COLOR LEVEL
141424
N/A
VAR
10SBRT
SUB BRIGHTNESS
131315
N/A
FIX11RON
R OUTPUT ON ( 0:R OUTPUT OFF 1:R OUTPUT ON )
1
FIX12GON
G OUTPUT ON ( 0:R OUTPUT OFF 1:R OUTPUT ON )
1
FIX13BON
B OUTPUT ON ( 0:R OUTPUT OFF 1:R OUTPUT ON )
1
FIX14BLLV
BLUE STRETCH ( 00:NO<->11:DEEP ) only Color Temp "Cool"