Sony KV-EF34N90 User manual

MODEL COMMANDER DEST. CHASSIS NO.
KV-EF34N90 RM-913 TAIWAN SCC-P13EA
MODEL COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON ® COLOR TV
SERVICE MANUAL
BG-3S

– 2 –
KV-EF34N90
RM-913
SPECIFICATIONS
Note
Power requirements 110 V AC, 50/60 Hz
Power consumption (W) Indicated on the rear of the TV
Television system M
Color system PAL, SECAM, NTSC4.43, NTSC3.58
Stereo/Bilingual system B/G
MTS
B/G
Teletext Language English, Chinese
Channel coverage
MVHF: A2 to A13 / UHF: A14 toA69
CATV: A-6 to A-2, A to W+4, W+6 to W+29
˘(Antenna) 75-ohm external terminal
Audio output 15W + 15W 10% distortion
Number of terminal
D(Video) Input: 4 Output: 1 Phono jacks; 1VP-P, 75 ohms
≥(Audio) Input: 4 Output: 1 Phono jacks; 500 mVrms
(S Video) Input: 2 Y : 1 Vp-p, 75 ohms,
unbalanced, sync
negative
C : 0.286 Vp-p, 75 ohms
(Component Video) Input: 1 Phono jacks;Y : 1.0 Vp-p,
75 ohms, sync negative
CB: 0.7 Vp-p, 75 ohms
CR: 0.7 Vp-p, 75 ohms
Audio : 500 mVrms
2(Headphone) Output: 1 Stereo minijack
Picture tube 34 inch
Tube size (mm) 859 (Measured diagonally)
Screen size (mm) 800 (Measured diagonally)
Dimension (w/h/d, mm) 859 ×660.5 ×573.5
Mass (kg) 83
Design and specifications are subject to change without notice.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK !ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND INTHE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
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.

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KV-EF34N90
RM-913
TABLE OF CONTENTS
Section Title Page
SELF DIAGNOSIS FUNCTION................................ 4
1. GENERAL ........................................................................ 8
2. DISASSEMBLY
2-1. Rear Cover Removal ................................................ 28
2-2. Speaker Box Removal ............................................. 28
2-3. Chassis Assy Removal ............................................. 28
2-4. Service Position ....................................................... 28
2-5. D2 and DH Boards Removal ................................... 29
2-6. J1 Board RF Splitter Removal................................. 29
2-7. P Boards Removal ................................................... 29
2-8. A and B Boards Removal ........................................ 30
2-9. H1 Board Removal .................................................. 30
2-10. Demagnetization Coil Removal .............................. 30
2-11. Top Switch Removal ................................................ 30
2-12. Picture Tube Removal.............................................. 31
3. SET-UP ADJUSTMENTS
3-1. Beam Landing .......................................................... 32
3-2. Convergence............................................................. 33
3-3. Focus Adjustment .................................................... 34
3-4. Neck Assy Twist Adjustment................................... 35
3-5. G2 (Screen) and White Balance Adjustments ......... 37
3-6. Frequency (Free Run) Adjustment .......................... 37
4. CIRCUIT ADJUSTMENTS
4-1. Adjustments with Commander ................................ 51
4-2. Adjustment Method ................................................. 51
4-3. Picture Quality Adjustments.................................... 59
4-4. A Board Adjustment After IC003 (Memory)
Replacement............................................................. 60
4-5. Picture Distortion Adjustment ................................. 61
Section Title Page
5. DIAGRAMS
5-1. Block Diagram ......................................................... 51
5-2. Frame Schematic Diagram ...................................... 59
5-3 Circuit Boards Location .......................................... 63
5-4. Schematic Diagrams and Printed Wiring Boards ... 63
(1) Schematic Diagram ofA (1/2) Board ..................... 67
(2) Schematic Diagram ofA (2/2) Board ..................... 71
(3) Schematic Diagram of B(1/2) Board....................... 75
(4) Schematic Diagrams of B(2/2) and F Boards ......... 78
(5) Schematic Diagram P (1/3) Board ......................... 89
(6) Schematic Diagram of P (2/3) Board ..................... 92
(7) Schematic Diagrams of P (3/3), J1,B4 Boards ...... 95
(8) Schematic Diagrams of C and H1 Boards ............. 99
(9) Schematic Diagrams of VM2 and DH Boards ....... 106
(10) Schematic Diagram of D2 Board ........................... 111
5-5. Semiconductors....................................................... 113
6. EXPLODED VIEWS
6-1. Picture Tube ............................................................ 116
6-2. Chassis .................................................................... 117
7. ELECTRICAL PARTS LIST ..................................... 118

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KV-EF34N90
RM-913
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically
begin to flash.
The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER
lamp 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.
1. DIAGNOSTIC TEST INDICATORS
When an errors occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the
problem.If there is more than one error, the lamp will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen. No error has occured if the screen displays a “0”.
Diagnostic
Item
Description
• Power does not
turn on
• +B overcurrent
(OCP) or
overvoltage
(OVP)
• Vertical deflection
stopped
• Horizontal
deflection
overdrive
• White balance
failure (no
PICTURE)
• Micro reset
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
5 times
—
Self-diagnostic
display/Diagnostic
result
—
002:000 or
002:001~255
003:001~255
004:001~255
at the same time
005:000 or
005:001~225
101:00 or
101:001~225
Probable
Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out F4601
(F Board)
• H.OUT Q511 is shorted. (A
board)
• IC701 is shorted. (C board)
• -13V is not supplied. (A
board)
• IC 503 faulty (A board)
• G2 is improperly adjusted.
(Note 2)
• CRT problem.
• Video OUT IC701 is faulty.
(C board)
• IC301 is faulty. (A board)
• No connection A board to C
board.
• Discharge CRT (C Board)
• Static discharge
• External noise
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 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.
• Power is shut down shortly,
after this return back to
normal.
• Detect Micro latch up.
Note 1: 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.
Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.
SELF DIAGNOSTIC FUNCTION

– 5 –
KV-EF34N90
RM-913
2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
Diagnostic Item Flash Count*
+B overcurrent/overvoltage 2 times
Vertical deflection stopped
White balance failure 5 times
* One flash count is not used for self-diagnostic.
3. STOPPINGTHE STANDBY/TIMER 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.

– 6 –
KV-EF34N90
RM-913
4. 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 occurances of failure for confirmation on the screen:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[Screendisplay] /channel [5] /Sound volume [-] /Power ON
˘
Note that this differs from enteringtheservice mode (mode volume [+]).
Self-Diagnosis screen display
5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen
during repairs.When you have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-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 as shown below when the diagnostic
screen is being displayed.
Channel [8] /0
[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

– 7 –
KV-EF34N90
RM-913
6. SELF-DIAGNOSTIC CIRCUIT
[+BovercurrentªOCPº] Occurs when an overcurrent on the +B(135) line is detected by Q604 (A board).If Q604
(A board) go to ON and the voltage to pin 18 of IC301 (A board) should go down when
V.SYNC is more than seven verticals in a period, the unit will automatically turn off.
[Horizontaldeflectionoverdrive] Occurs when an overdrive on H drive line is detected by D526 (A board). Power supply
will be shut down when detect it.
[Verticaldeflectionstopped] Occurs when an absence of the vertical deflection pulse is detected by Q509 (A board)
and IC001 (A board) shut down the power supply.
[Verticaldeflectionovercurrent] Occurs when an overcurrent on V drive line is detected by Q507 (A board). Power supply
will be shut down when detect this by IC001 (A board).
[Whitebalancefailure] If the RGB levels* do not balance or become low level within 5 seconds, 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 IK.)

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KV-EF34N90
RM-913
SECTION 2
DISASSEMBLY
2-4. SERVICE POSITION
2-3. CHASSIS ASSY REMOVAL
1Two claws
2Chassis
2-1. REAR COVER REMOVAL
4Four screws
(+BVTP 4X16)
3Tree screws
(+BVTP 4X16)
1Tree screws
(+BVTP 4X16)
2Tree screws
(+BVTP 4X16)
2-2. SPEAKER BOX REMOVAL
1Two screws
(TP + TWH 4X25)
2SPEAKER BOX
L/R ASSEMBLY
2
1

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KV-EF34N90
RM-913
2-6. J1 BOARD AND RF SPLITTER REMOVAL
1screws (+BVTP 4X16)
2screw
(+BVTP 3X12)
1screw (+BVTP 3X12)
5Two screws
(+BVTP 3X12)
3Two claws
4Terminal bracket
6J1 board
8RF splitter
7P-P cable
2-7. P BOARD REMOVAL
1Three connector
2P board P board
Driver
P board
Remove the P Board while take off
Connector’s craw by tip of screwdriver,etc.
2-5. D2 AND DH BOARDS REMOVAL
1Claw
4Claw
7Claw
8Blacket
5HV block
2D2 board
CN4603
CN4602
CN4601
9DH board
3Two screws
(+BVTP 3X12) 6Two screws
(+BVTP 3X12)
CN3803 CN3802

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KV-EF34N90
RM-913
2-10. DEMAGNETIZATION COIL REMOVAL
6Two DGC holders
4Two CRT supporter
1Two DGC clips
3DGC band
5Demagnetization
coil
2Two hooks
Cushion
Cushion (160X45)
2-8. A AND B BOARDS REMOVAL
1Three screws
(+PWH 3X12)
4A board
3B board 2Four connector
2-9. H1 BOARD REMOVAL
1Two screws
(+BVTAP 3X12)
2Two claws
3H1 board
2-11. TOP SWITCH REMOVAL
6Three claws
4Two claws
4Top switch
(with top switch
holders)
6connector
5Two top switch
holders
1Two screws
(+BVTP 3X12)

–31 –
KV-EF34N90
RM-913
•REMOVAL OF ANODE-CAP
NOTE : After removing the anode, short circuit the anode of the picture tube and
the anode cap to the metal chassis, CRT shield or carbon paint on the
CRT.
•REMOVING PROCEDURES
1Do not damage the surface of anode-caps with sharp shaped objects.
2Do not press the rubber too hard so as not to damage the inside of anode-cap.
A metal fitting called the shatter-hook terminal is built into the rubber.
3Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage the rubber.
•HOW TO HANDLE AN ANODE-CAP
3When one side of the rubber cap is separated from the anode button, the anode-cap
can be removed by turning up the rubber cap and pulling it up in the direction of the
arrow c.
2Using a thumb pull up the rubber cap firmly in the direction indicated by the arrow b.
1Turn up one side of the rubber cap in the direction indicated by the arrow a.
a
a
b
b
c
Anode button
8C board
7Chassis assenbly
9Neck assembly
2Speaker box(L)
assembly
4Speaker box(R)
assembly
0Deflection yoke
!∞Two springs
6Two claws
!™Two DGC clip
!£Two fooks
!§Two CRT
supportor
!¢DGC band
!§Two DGC holder
!¡Anode cap
!ªFour nuts
@ºPicture tube
Cution
3Two screws
(TP+TWH 4X25)
5Two screws
(TP+TWH 4X25)
!¶Demagnetization
coil
2-12. PICTURETUBE REMOVAL

– 32 –
KV-EF34N90
RM-913
•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.
Controlsandswitches should be set as followsunlessotherwisenoted:
PICTURE control........................................................... normal
BRIGHTNESS control................................................... normal
Perform the adjustments in the following order :
1. Beam Landing
2. Convergence
3. Focus
4. White Balance
Note : Test Equipment Required.
1. Color-bar/Pattern Generator
2. Degausser
3. Oscilloscope
SECTION 3
SET-UP ADJUSTMENTS
................................................................................................................................................................................................................................
Fig. 3-3
}normal
Neck assy
G2G1 G3
Behind the G2 edge
Fig. 3-1
Red Blue
Green
Preparation :
•In order to reduce the influence of geomagnetism on the set's
picture tube, face it east or west.
•Switch on the set's power and degauss with the degausser.
3-1. BEAM LANDING
1. Input a white signal with the pattern generator.
Contrast
Brightness
2. Position neck assy as shown in Fig3-1.
3. Set the pattern generator raster signal to a green raster.
4. Move the deflection yoke to the rear and adjust with the purity
control so that the green is at the center and the blue and the red
take up equally sized areas on each side.
(See Figures 3-1 through 3-3.)
5. Move the deflection yoke forward and adjust so that the entire
screen is green. (See Figure 3-2.)
6. Switch the raster signal to blue, then to green and verify the
condition.
7. When the position of the deflection yoke has been decided,
fasten the deflection yoke with the screws and DY spacers.
8. If the beam does not land correctly in all the corners, use a
magnet to adjust it.
(See Figure 3-4.)
Fig. 3-2
Fig. 3-4
Purity control
corrects this area. Disk magnets or rotatable
disk magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
a
b
b
c
c
d
d
a

–33 –
KV-EF34N90
RM-913
3-2. CONVERGENCE ADJUSTMENT
Preparation :
•Before starting this adjustment, adjust the focus, horizontal size
and vertical size.
•Set the PICTURE and BRIGHTNESS 50%.
•Cross hatch / Dot pattern.
(1) Horizontal and Vertical Static Convergence
1. (Moving horizontally), adjust the H.STAT control so that the
red, green and blue dots are on top of each other at the center of
the screen.
2. (Moving vertically), adjust theV.STAT magnet so that the red,
green and blue dots are on top of each other at the center of the
screen.
3. If the H.STAT variable resistor cannot bring the red, green and
blue dots together at the center of the screen, adjust the
horizontal convergence with the H.STAT variable resistor and
the V.STAT magnet in the manner given below.
(In this case, the H.STAT variable resistor and the V.STAT
magnet influence each other, so be sure to perform adjustments
while tracking.)
1V. STAT
2H. STATVR
Center dot
R G B
R
G
B
H. STAT VR V. STAT
Magnet
RV702
H. STAT
Y magnet
C Board
RR
GG
BB
a
a
b
b b
R
R
G
G
B
B
a
b
3
R
RGG
B
B
a
a
b
b
b
V.STAT
Purity

–34 –
KV-EF34N90
RM-913
5Y separation axis correction magnet adjustment.
1. Receive the cross-hatch signal and adjust [PICTURE] to [MIN]
and [BRIGHTNESS] to [STANDARD] .
2. Adjust the Y separation axis correction magnet on the neck
assembly so that the horizontal lines at the top and bottom of
the screen are straight.
Note
1. The Red and Blue magnets should be equally far from the
horizontal center line.
2. Do not separate the Red and Blue magnets too far. (Less than
8 mm)
(2) Dynamic Convergence Adjustment
Preparation:
•Before starting this adjustment, adjust the horizontal static
convergence and the vertical static convergence
•Set the PICTURE and BRIGHTNESS to normal.
1. Adjust TLH. (TLH correction piece)
1Receive the dot/hatch pattern signal and adjust picture quality
by the menu.
2Correct horizontal mis-convergence of red and blue of both sides
on the X axis.
When red is outside insert BMC magnet to right side (THL+)
views from DY neck. And when blue is outside, insert it to left
side (THL–) and take both sides.
2. Adjust XCV core.
To able to become balance of XCV on the X axis well.
3. Adjust V-TILT.
Correct the vertical mis-convergence of red and blue of verti-
cally sides on theY axis.
4. AdjustYCH.
Adjust horizontal mis-convergence of red and blue of verti-
cally sides on the Y axis. Mentioned above steps 2 to 4 are
adjusting respectively perform minuteness tracking.
4BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or aligned, then
use the BMC magnet to adjust in the manner described below.
RG B R G B R GB
RB
RG
GGB RB
Blue
Red
VM board
Blue
Red
VM board
Neck assy Neck assy
R
(B) B (R) B (R)
TLH +
TLH -
R
(B)
TLV
BMC magnet C board
RV702
VM board
H-TRPYCH

–35 –
KV-EF34N90
RM-913
3-3. FOCUS ADJUSTMENT
Note
Focus adjustment should be completed before W/B adjustment.
(1) Receive digital monoscope pattern.
(2) Set "A/V CONTROL" to "STANDARD".
(3) Adjust FOCUS VR so that the center of the screen becomes
justfocus.
(4) Change the receiving signal to white pattern and blue back.
(5) Confirm MAGENTA RING should not be over the limit sam-
ple. In case MAGENTA RING is over the limit sample, adjust
FOCUS VR to take tracking of MAGENTA RING and FO-
CUS.
FLYBACK TRANSFORMER(T503)
Focus
Screen
3-4. NECK ASSYTWIST ADJUSTMENT
(1) Receive dot/hatch pattern.
(2) Turn FOCUS VR fully counter-clockwise.
(3) Confirm the dot shape at the screen center. (Fig. 3-4)
(4) Resume FOCUS VR.
Note
In case of turning NECK ASSY, loosen the screw 3 turns. Do not
move the position.
OK
Turn NECK ASSY clockwise.
Turn NECK ASSY counter clockwise.
Fig. 3-4
Fix a Permalloy assy corresponding to the misconverged
areas.
ba
cd
a-d : screen-corner
misconvergence
a
b
c
d
Permalloy assembly
(3) Screen-corner Convergence

–36 –
KV-EF34N90
RM-913
4. SUB PICTURE BRIGHTNESS ADJUSTMENT
1) Set to service mode (Refer Section 4-1:ADJUSTMENTS WITH
COMMANDER).
2) Input a PAL RF colorbar signal through Sub TUNER (TU3301).
3) BRIGHTNESS ....RESET.
PICTURE ............MINIMUM
4) A:Select SBR (WHB7) with [1] and[4], and adjust SBR (WHB7)
level with[3] and [6] so that the second stripe from the right
is dimly lit.
B:Adjust RV5301 on B board so that the level of CN1310 0
pin is within spec.
3-5. G2 (SCREEN) ANDWHITE BALANCE
ADJUSTMENTS
1. G2 (SCREEN) ADJUSTMENT
1) Set the PICTURE and BRIGHTNESS to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C board cathode to the oscilloscope.
4) Adjust G2 (Screen) volume to the value below.
2. DRIVE LEVEL ADJUSTMENT
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
WITH COMMANDER).
2) Input PAL Colorbar Signal.
3) Set to VP7 (Service Mode) "DYC" = 0.
4) Set VP22 GON to "0",VP23 BON to "0".
5) Set to A/V mode to "PERSONAL".
6) Connect an osilloscope to pin 2of CN705 on the C board.
7) Set the picture to maximum and Brightness to minimum.
Enter into the Service Mode.
8) Using the [1] and [4] buttons select SAJ0 "PMX".
9) Using the [3] and [6] buttons on the Remote Commander ad-
just until the oscilloscope waveform has an amplitude of 1.64
± 0.05Vp-p.
10) Reset to VP7 "DYC" = 1 andVP22 "GON" to 1, VP23 BON to
"1".
White A:
second from the right
Black
B:
0.68 ± 0.01Vp-p
3. WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
WITH COMMANDER).
2) Input white raster signal.
3) Set the following condition.
PICTURE minimum, BRIGHTNESS 50%
4) Select GCT (WHB 4) and BCT (WHB 5) with [1] and [4], and
adjust the level with [3] and [6] for the best white balance.
5) Set the PICTURE to maximum.
6) Select GDR (WHB 1) and BDR (WHB 2) with [1] and [4], and
adjust the level with [3] and [6] for the best white balance.
7) Write into the memory by pressing [MUTING] then [0].
1.64 ± 0.05Vp-p
3-6. FREQUENCY (FREE RUN) ADJUSTMENT
(1) Select Video 1 (no signal).
(2) Connect a frequency counter across pin !ª (FH) IC301 of A
Board.
(3) Select VP (OF) HOS with [1] and [4] of the commander then
adjust to 15.690kHz ± 25Hz using [3] and [6].
0 V
175 V ±2(VDC)

– 37 –
KV-EF34N90
RM-913
SECTION 4
CIRCUIT ADJUSTMENTS
With the unit on standby
↓
[DISPLAY]
↓
5
↓
VOL (+)
↓
[POWER]
This operation sequence puts the unit into service mode.
4-1. ADJUSTMENTS WITH COMMANDER
Service adjustments are made with the RM-951 that comes with
this unit.
a. ENTERING SERVICE MODE
1, 4Select the adjustment item.
↓
3, 6Raise/lower the data value.
↓
[MUTING] Writes.
↓
-Executes the writing.
7, -All the data becomes the values in memory.
8, -All user control goes to the standard state.
5, -Service data initialization (Be sure not to use
usually.)
2, -Write 50Hz adjustment data to 60Hz, or vice
versa.
PAL, SECAM : 50
NTSC : 60
00 HPS 1C SERVICE
Data
Mode
Item Name
Item No
Software version
Suffix No
(OEM Code) Total Power-On time (hours)
p
Marking of virgin NVM
GEO
1.0C 59 7F 000A0008S
Device Name
50
RM-913
b. METHOD OF CANCELLATION FROM SERVICE
MODE
Setthe standby condition(Press [POWER] buttononthecommander),
then press [POWER] button again, hereupon it becomes TV mode.
c. METHOD OF WRITE INTO MEMORY
1) Set to Service Mode.
2) Press [1] (UP) and [4] (DOWN), select an item of adjustment.
3) Press[MUTING] button and it will indicate WRITE on the screen.
4) Press [0] button to write into memory.
d. MEMORYWRITE CONFIRMATION METHOD
1) After adjustment, pull out the plug from AC outlet, and then
plug intoAC outlet again.
2) Turn the power switch ON and set to Service Mode.
3) Call the adjusted items again to confirm adjustments were made.
The screen display is :
231
564
897
0
ENTER JUMP
PIC
MODE
MUTING DISPLAY POWER
CHVOL
MTS
TV/VIDEO FREEZE SWAP PIP
VIDEO TV
MENUTWIN PIP CH
ZOOM
IN
LEFT
FAVORITE CH
INDEX
ZOOM
IN
RIGHT
SURROUND WAKE UP SLEEP
SOUND
MODE
PIP CH
VIDEO
POWER
TITLE
TV

–38 –
KV-EF34N90
RM-913
4-2. ADJUSTMENT METHOD
Item Number 00 of device GEO
This explanation uses H-Position as an example.
1. Select “GEO 00 HPS” with the 1and 4buttons.
2. Raise/lower the data with the 3and 6buttons.
3. Select the optimum state. (The standard is 1F for PAL reception.)
4. Write with the [MUTING] button. (The display changes to
WRITE.)
5. Execute the writing with the -button. (The WRITE
display will be changed to red color while excuting, and back
to SERVICE.)
Use the same method for all Items. Use 1and 4to select the
adjustment item, use 3and 6to adjust, write with [MUTING],
then execute the write with-.
Note : 1. In[WRITE], the data for all items are written into memory
together.
2. For adjustment items that have different standard data
between 50Hz or 60Hz, be sure to use the respective
input signal after adjustment.
1F SERVICE 50HPS
Adjusted with [3]
and [6] buttons.
GREEN
Written with [MUTING]
Write executed with [0]
GEO 00 7F 0 000A59
008S 1.0C
1F SERVICE 50HPS RED
The WRITE display
then the display
returns to a green
SERVICE.
GEO 00 7F 0 000A59
008S 1.0C
1F WRITE 50HPS GREEN
GEO 00 7F 0 000A59
008S 1.0C

–39 –
KV-EF34N90
RM-913
Adjustment Item Table
Category Functionality Initial Range Function Table & Note Register Device & Slave RAM Address
No. Name Data (Bit Range) Address (Bit Range)
GEO 0 HPS 0F 3F H Position 50/60/MID50/MID60 12 (7-2) CXA2130S(88H) 355 (7-2)
1 HSZ 26 3F H Size 50/60/MID50/MID60 11 (7-2) 36A (7-2)
2 PAP 22 3F Pin Amp 50/60HZ 13 (7-2) 98 (7-2)
3 TLT 5 0F Trapezium 50/60/MID50/MID60 15 (7-4) 36B (7-4)
4 VPS 23 3F V Position 50/60/MID50/MID60 0F (7-2) 354 (7-2)
5 VSZ 16 3F V Size 50/60/MID50/MID60 0E (7-2) 369 (7-2)
6 SCO 8 0F S Correction 50/60HZ 10 (7-4) 95 (7-4)
7 VLN 8 0F V Linearity 50/60HZ 10 (3-0) 95 (3-0)
8 BOW 8 0F AFC Bow 50/60HZ 16 (7-4) 9B (7-4)
9 AGL 8 0F AFC Angle 50/60HZ 16 (3-0) 9B (3-0)
10 UPN 24 3F Upper Pin 50/60HZ 14 (7-2) 99 (7-2)
11 LPN 26 3F Lower Pin 50/60HZ 18 (7-2) 9D (7-2)
12 HBL 0 1 H Blanking on/off 18 (1) 6D (1)
13 LBL 7 0F Left H Blanking 50/60HZ 17 (7-4) 9C (7-4)
14 RBL 7 0F Right H Blanking 50/60HZ 17 (3-0) 9C (3-0)
WHB 0 RDR 25 3F R Drive DYNAMIC/others 09 (7-2) CXA2130S(88H) A1 (7-2)
1 GDR 25 3F G Drive DYNAMIC/others 0A (7-2) A2 (7-2)
2 BDR 25 3F B Drive DYNAMIC/others 0B (7-2) A3 (7-2)
3 RCT 7 0F R Cutoff SECAM/others 07 (3-0) A5 (3-0)
4 GCT 7 0F G Cutoff SECAM/others 08 (7-4) A6 (7-4)
5 BCT 7 0F B Cutoff SECAM/others 08 (3-0) A6 (3-0)
6 BMN 18 1F Brightness Minimum Data 06 (7-2) 106
7 SBR 2E 3F Sub Brightness Control 06 (7-2) 107
SAJ 0 PMX 2B 3F Picture Maximum Data 03 (7-2) CXA2130S(88H) 105
1 SHU 0 0F Sub Hue Control TV/Video 05 (7-2) 108
2 SSH 4 0F Sub Sharpness Control TV/Video 07 (7-4) 109
3 SCL 20 3F Sub Color Control NTSC/others 04 (7-2) 10A
VP 0 EHT 5 0F EHT Comp 50/60HZ 15 (3-0) CXA2130S(88H) 9A (3-0)
1 GMA 2 03 Gamma Correction NTSC/others 0B (1-0) 363 (1-0)
(also separated for STANDARD)
2 YDL 8 0F Y Delay
PAL/SECAM/NTSC/DVD
0C (3-0) 366
3 SST 2 03 SECAM ID Start Position 1B (1-0) 70 (1-0)
4 SSP 1 03 SECAM ID Stop Position 1B (3-2) 70 (3-2)
5 SLV 1 03 SECAM ID Level 1C (1-0) 71 (1-0)
6 SBF 22 3F SECAM BELL fO 1C (7-2) 71 (7-2)
7 DYC 1 1 Dynamic Color on/off 0A (1) 5F (1)
8 ABL 0 1 ABL Mode Switching (except STANDARD) 09 (1) 5E (1)
9 VTH 1 1 ABL DetectionVth Switching 09 (0) 5E (0)
01 SFO 1 1 FO Switching for Sharpness NTSC/others 05 (1) 356 (1)
11 DCX 1 1 DC Trans.Ratio Switching 06 (1) 5B (1)
12 SHT 1 1 Pre-/Overshoot ratio Switch NTSC/others 06 (0) 357 (0)

–40 –
KV-EF34N90
RM-913
Category Functionality Initial Range Function Table & Note Register Device & Slave RAM Address
No. Name Data (BIt Range) Address (Bit Range)
VP 13 HDW 0 1 H Drive PulseWidth Switch 00 (6) 55 (6)
14 AFC 0 03 AFC Gain Control TV/Video/Text 0F (1-0) 1C7
15 HOS 7 0F H Oscillation 0C (7-4) 61 (7-4)
16 HSS 0 1 Slice Level of H Sync Sep. 0D (1) 62 (1)
17 VSS 0 1 Slice Level of V Sync Sep. 0D (0) 62 (0)
18 HMS 1 1 Macro Vision C/m off/on 50/60Hz 0E (0) 93 (0)
19 YUV 0 1 YUV Switch Control 01 (0) 56 (0)
20 CDV 1 3 CD mode for Video 0D (5-4) 361 (5-4)
21 RON 1 1 R ON not memorized 01 (3) 56 (3)
22 GON 1 1 G ON not memorized 01 (2) 56 (2)
23 BON 1 1 B ON not memorized 01 (1) 56 (1)
24 PON 1 1 P ON not memorized 00 (7) 55 (7)
25 BLK 0 1 BLK Off 12 (0) 67 (0)
26 VMC 1 1 VM Off 13 (0) 68 (0)
AP 0 BCS 1 3 Bass Center Shift #4 (3-0) TDA7315(80H) 358 (1-0)
1 TCS 1 3 Treble Center Shift #5 (3-0) 359 (1-0)
MSP 0 WST 15 FF W/G Stereo Threshold MSP3415D(84H) 165
1 WBT EA FF W/G Bilingual Threshold 166
2 WLL 5 FF W/G Monaural Threshold 167
3 WAC 1 0F W/G Agreement Count 168
4 WDL 30 FF W/G Search Delay169
5 NDL 20 FF NICAM Search Delay16A
6 SDL 10 FF Stereo status Read Delay 16B
7 AGC 1 1 AGC Switch Auto/Constant 00BB (7) 116 (7)
8 REL 28 3F AGC Gain at Constant Mode 00BB (6-1) 116 (6-1)
9 CRM 0 1 Carrier muting on/off 00BB (9) 115 (1)
10 ACO 1 1 Audio Clock out on/off 0083 (5) 11A (5)
11 FP 1B 7F FM Prescale for non-M system 000E (7-0) 329
12 FPM 32 7F FM Prescale for M system 000E (7-0) 32A
13 FH 2D 7F FM Prescale for HDEV 000E (7-0) 32B
14 FHM 65 7F FM Prescale for HDEV and M 000E (7-0) 32C
15 WGP 2A 7F W/G Prescale 000E (7-0) 32D
16 NIP 6D 7F NICAM Prescale 0010 (7-0) 32E
17 ERR 50 FF Auto FM switch Threshold 0021 (10-3) 14F
18 VOL 6D FF Loud Speaker gain 0700 to 07FFh 0000 (11-4) 368
Adjustment Item Table