Sony KV-30XBR910 User manual

TRINITRON®COLOR TELEVISION
SERVICE MANUAL DA-4 CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
9-965-950-01
KV-30XBR910 RM-Y188 US SCC-S66L-A
KV-30XBR910 RM-Y188 CANADA SCC-S70K-A
KV-30XBR910 RM-Y188 HAWAII SCC-S69F-A
KV-34XBR910 RM-Y188 US SCC-S66M-A
KV-34XBR910 RM-Y188 CANADA SCC-S70L-A
KV-34XBR910 RM-Y188 HAWAII SCC-S69G-A
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 8/2003
REVISION DATE REVISION TYPE SUBJECT
8/2003 No revisions or updates are applicable at this time.

TRINITRON®COLOR TELEVISION
SERVICE MANUAL DA-4 CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
9-965-950-01
KV-30XBR910 RM-Y188 US SCC-S66L-A
KV-30XBR910 RM-Y188 CANADA SCC-S70K-A
KV-30XBR910 RM-Y188 HAWAII SCC-S69F-A
KV-34XBR910 RM-Y188 US SCC-S66M-A
KV-34XBR910 RM-Y188 CANADA SCC-S70L-A
KV-34XBR910 RM-Y188 HAWAII SCC-S69G-A
Self Diagnosis
Supported model
KV-34XBR910 RM-Y188

— 3 —
KV-30XBR910/34XBR910
TABLE OF CONTENTS
SECTION TITLE PAGE SECTION TITLE PAGE
Specifications ................................................................................. 4
Warnings and Cautions .................................................................. 5
Safety Check-Out ........................................................................... 6
Self-Diagnostic Function................................................................. 7
SECTION 1: DISASSEMBLY............................................................... 10
1-1. Rear Cover Removal............................................................ 10
1-2. Chassis Assembly Removal................................................. 10
1-3. Service Position ................................................................... 10
1-4. Picture Tube Removal...........................................................11
Anode Cap Removal Procedure............................................11
SECTION 2: SET-UP ADJUSTMENTS................................................ 12
2-1. Beam Landing ...................................................................... 12
2-2. V-PIN and V-CEN Adjustment .............................................. 13
2-3. Convergence........................................................................ 13
2-3.1. Vertical and Horizontal Static Convergence ............ 13
2-3.2. Operation of BMC (Hexapole) Magnet .................... 14
2-3.3. TLH Plate Adjustment .............................................. 14
2-3.4. Dynamic Convergence Adjustments........................ 14
2-3.5. Screen-Corner Convergence................................... 15
2-4. Focus Adjustment................................................................. 16
2-4.1. Dynamic Focus/Dynamic Quadra-Pole Data........... 17
2-5. Screen (G2).......................................................................... 17
2-6. Picture Quality Adjustments ................................................. 17
2-6.1. Video Input - Sub Contrast Adjustment.................... 17
2-6.2. Video Input - Sub Hue/Sub Color Adjustment.......... 17
2-6.3. RF Input - Two Picture Sub Contrast Adjustment .... 18
2-6.4. RF Input - Sub Hue/Sub Color Adjustment.............. 18
2-7. White Balance (CRT) and Sub Bright Adjustment................ 19
2-7.1. Color Offset Adjustment Procedure ......................... 19
2-8. H Raster Center Adjustment ................................................ 19
2-9. Picture Distortion Adjustments ............................................. 20
2-9.1. NTSC (DRC) Full Mode Adjustment ........................ 20
2-9.2. 1080i HD Mode Adjustment ..................................... 21
2-9.3. Twin Mode/Favorite/Index/Normal Mode
Geometry Confirmation............................................ 21
SECTION 3: SAFETY RELATED ADJUSTMENTS............................. 22
3-1. Preparation Before Confirmation.......................................... 22
3-1.1 Hold-Down Operation Confirmation......................... 22
3-2. B+ Max Confirmation ........................................................... 22
3-3. HV Service Flow Chart......................................................... 23
SECTION 4: CIRCUIT ADJUSTMENTS .............................................. 25
4-1. Setting Service Adjustment Mode ........................................ 25
4-1.1. Service Adjustment Mode In .................................... 25
4-1.2. Service Adjustment Mode Memory .......................... 25
4-1.3. Reading the Memory ............................................... 25
4-1.4. Adjusting the Picture................................................ 25
4-1.5. Resetting the Data................................................... 25
4-1.6. Resetting the MID NVM Data .................................. 25
4-1.7. Resetting the System NVM Data............................. 25
4-1.8. Copy Function.......................................................... 25
4-2. Memory Write Confirmation Method .................................... 26
4-3. Remote Adjustment Buttons and Indicators ......................... 26
4-4. Service Data Lists ................................................................ 27
4-5. ID Map Table ........................................................................ 29
SECTION 5: DIAGRAMS..................................................................... 30
5-1. Circuit Boards Location ........................................................ 30
5-2. Printed Wiring Boards and
Schematic Diagrams Information ......................................... 30
5-3. Block Diagrams ..................................................................... 31
5-4. Schematics and Supporting Information .............................. 35
UD Board Schematic Diagram ............................................. 35
B Board Schematic Diagram (1 of 6) ................................... 37
B Board Schematic Diagram (2 of 6) ................................... 38
B Board Schematic Diagram (3 of 6) ................................... 39
B Board Schematic Diagram (4 of 6) ................................... 40
B Board Schematic Diagram (5 of 6) ................................... 41
B Board Schematic Diagram (6 of 6) ................................... 42
MX Board Schematic Diagram (1 of 4) ................................ 45
MX Board Schematic Diagram (2 of 4) ................................ 46
MX Board Schematic Diagram (3 of 4) ................................ 47
MX Board Schematic Diagram (4 of 4) ................................ 48
UX Board Schematic Diagram ............................................. 51
HMX Board Schematic Diagram .......................................... 53
V Board Schematic Diagram (1 of 5) ................................... 55
V Board Schematic Diagram (2 of 5) ................................... 56
V Board Schematic Diagram (3 of 5) ................................... 57
V Board Schematic Diagram (4 of 5) ................................... 58
V Board Schematic Diagram (5 of 5) ................................... 59
D Board Schematic Diagram (1 of 2) ................................... 62
D Board Schematic Diagram (2 of 2) ................................... 63
DL Board Schematic Diagram.............................................. 67
HCX Board Schematic Diagram........................................... 70
A Board Schematic Diagram (1 of 2).................................... 72
A Board Schematic Diagram (2 of 2).................................... 73
CX Board Schematic Diagram ............................................. 76
HAX Board Schematic Diagram........................................... 78
HB Board Schematic Diagram ............................................. 79
WX Board Schematic Diagram ............................................ 81
5-5. Semiconductors (1 of 2) ....................................................... 85
Semiconductors (2 of 2)....................................................... 86
SECTION 6: EXPLODED VIEWS ........................................................ 87
6-1. Chassis ................................................................................ 87
6-2. Picture Tube ......................................................................... 88
6-3. Beznet .................................................................................. 89
SECTION 7: ELECTRICAL PARTS LIST ........................................... 90

— 4 —
KV-30XBR910/34XBR910
SPECIFICATIONS
Design and specifications are subject to change without notice.
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.
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.
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 unbalanced, sync negative;
P
B: 0.7 Vp-p, 75 ohms
P
R: 0.7 Vp-p, 75 ohms
4) 500 mVrms (100% modulation), Impedance: 47 kilohms
5) More than 408 mVrms at the maximum volume setting (variable)
More than 408 mVrms (fix); Impedance (output): 2 kilohms
6) 3.3V T.M.D.S., 50 ohms
The DVI-HDTV input terminal is complieant with the EIA-861
standard and is not intended for use with personal computers.
KV-30XBR910 KV-34XBR910
Power Requirements
Number of Inputs/Outputs
Video 1)
S Video 2)
Y,PB, PR
3)
Audio 4)
Audio Out 5)
Control-S (In/Out)
DVI-HDTV 6)
Speaker Output (W)
Power Consumption (W)
In Use (Max)
In Standby
Dimensions (W x H x D)
mm 898 x 607 x 563 mm 994 x 652 x 605 mm
in 35 3/8 x 23 7/8 x 22 1/8 in 39 1/8 x 25 5/8 x 23 7/8 in
Mass
kg 70 kg 90 kg
lbs 155 lbs 199 lbs
280W
1W
120V, 60Hz
4
3
2
7
1
YES
1
7.5W x 2
15W Subwoofer
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
30-inch picture measured diagonally (KV-30XBR910
Only)
34-inch picture measured diagonally (KV-34XBR910
Only)
Actual screen size
32-inch measured diagonally (KV-30XBR910 Only)
36-inch measured diagonally (KV-34XBR910 Only)
Antenna
75 ohm external terminal for VHF/UHF
Supplied Accessories
Remote Commander RM-RM-Y188
Two Size AA (R6) Batteries
Optional Accessories
AV Cable: VMC-810/820/830 HG
Audio Cable: RKC-515HG
Component Video Cable: VMC-10/30 HG
TV Stand: SU-30XBR1 (KV-30XBR910 Only)
TV Stand: SU-34XBR1 (KV-34XBR910 Only)

— 5 —
KV-30XBR910/34XBR910
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-30XBR910/34XBR910
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly soldered
connections. Check the entire board surface for solder splashes and
bridges.
2. Check the interboard wiring to ensure that no wires are “pinched” or
touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and
mounting hardware have been replaced. Be absolutely certain that
you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors,
that were installed during a previous repair. Point them out to the
customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend their
replacement.
6. Check the line cords for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
7. Check the B+ and HV to see if they are specified values. Make sure
your instruments are accurate; be suspicious of your HV meter if
sets always have low HV.
8. Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
Leakage Test
The AC leakage from any exposed metal part to earth ground and from
all exposed metal parts to any exposed metal part having a return to
chassis, must not exceed 0.5 mA (500 microamperes). Leakage current
can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instructions.
2. A battery-operated AC milliampmeter. The Data Precision 245 digital
multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75 V,
so analog meters must have an accurate low voltage scale. The
Simpson’s 250 and Sanwa SH-63TRD are examples of passive
VOMs that are suitable. Nearly all battery-operated digital multimeters
that have a 2 VAC range are suitable (see Figure A).
How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-plate retaining
screw on most AC outlet boxes is also at earth ground. If the retaining
screw is to be used as your earth ground, verify that it is at ground by
measuring the resistance between it and a cold-water pipe with an
ohmmeter. The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble-
light (not a neon lamp) between the hot side of the receptacle and the
retaining screw. Try both slots, if necessary, to locate the hot side on the
line; the lamp should light at normal brilliance if the screw is at ground
potential (see Figure B).
To Exposed Metal
Parts on Set
AC Voltmeter
(0.75 V)
Earth Ground
0.15 µ F1.5
kΩ
g
AC Outlet Box Ohmmeter
Cold-water Pipe
Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.

— 7 —
KV-30XBR910/34XBR910
SELF-DIAGNOSTIC FUNCTION
Display of Standby/Timer LED Flash Count
Diagnostic items Flash count
Lamp OFF 3 sec.
Lamp ON 0.3 sec.
Lamp OFF 0.3 sec.
+BfiOvercurrentfi 2fitimes
Lowfi+BfiOvervoltagefi 3fitimes
Vert.fiDeflectionfiStoppedfi 4fitimes
WhitefiBalancefiFailurefi 5fitimes
Lowfi+BfiOCP/OVPfi 6fitimes
Horiz.fiDeflectionfiStoppedfi 7fitimes
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.
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to flash. The number
of times the LED flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER LED flash indicators is listed in the
instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review
the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
Diagnostic Test Indicators
When an error occurs, the STANDBY/TIMER LED will flash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the LED will identify the first of the problem areas.
Results for all of the following diagnostic items are displayed on screen. If the screen displays a “0”, an error has occurred.
Diagnostic Item
No. of times
STANDBY /
TIMER lamp
flashes
Display
Result Probable Cause Location Detected Symptoms
Power does not turn on Does not light _______ •Power cord is not plugged in.
•Fuse is burned out (F501). (A Board)
•Power does not come on.
•No power is supplied to the TV.
•AC Power supply is faulty.
+B Overcurrent (OCP)* 2 times 2:0 or 2:1 •H.OUT (Q5030) is shorted. (D Board)
•+B PWM (Q5003) is shorted.
(D Board)
•Power does not come on.
•Load on power line shorted.
Low +B Overvoltage (OVP) 3 times 3:0 or 3:1 •IC6505 is faulty. (D Board) •Has entered standby mode.
Vertical Deflection Stopped 4 times 4:0 or 4:1 •15V is not supplied. (D Board)
•IC5004 is faulty. (D Board)
•Has entered standby mode after
Horizontal raster.
•Vertical deflection pulse is stopped.
•Power line is shorted or power
supply is stopped.
White Balance Failure
(not balanced)
5 times 5:0 or 5:1 •Video OUT (IC9001-IC9003) is faulty.
(CH, CX Board)
•CRT drive (IC2801) is faulty. (B Board)
•G2 is improperly adjusted.**
•No raster is generated.
•CRT cathode current detection
reference pulse output is small.
LOW +B OCP/OVP
(overcurrent/overvoltage)***
6 times 6:0 or 6:1 •+5 line is overloaded. (A, B, M Boards)
•+5 line is shorted. (A, B, M Boards)
•IC504 is faulty. (A Board)
•No picture
Horizontal Deflection
Stopped
7 times 7:0 or 7:1 •No picture
* If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is diagnosed first by the
microcontroller is displayed on the screen.
** Refer to Screen (G2) in Section 2-5 of this manual.
*** If STANDBY/STEREO LED flashes six (6) times, unplug the unit and wait 10 seconds before performing the adjustment.
Self Diagnosis
Supported model
Standby/Timer LED
* One flash count is not used for
self-diagnostic.

— 8 —
KV-30XBR910/34XBR910
Self-Diagnostic Screen Display
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past
occurrences of failure on the screen for confirmation.
To Bring Up Screen Test
In standby mode, press buttons on the Remote Commander sequentially, in rapid succession, as shown below:
DISPLAY Channel 5Sound volume -Power ON.
SELF DIAGNOSIS
2: +B OCP 0
3: +B OVP 0
4: VSTOP 0
5: AKB 1
6: LOWB 0
7: H-STOP 0
101: WDT 24
Handling of Self-Diagnostic Screen Display
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you
have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.
Clearing the Result Display
To clear the result display to “0”, press buttons on the Remote Commander sequentially when the diagnostic screen is displayed, as shown below:
ENTERChannel 8
Quitting the Self-Diagnostic Screen
To quit the entire self-diagnostic screen, turn off the power switch on the Remote Commander or the main unit.
Self-Diagnostic Circuit
1
2
4
3
3
1
2
R5104 R5105
R5125
Q5018
RY6501
Q6527
Q6530
Q6532
D6537
D6505
D5007
PH6501
Q5004
R5013
D5005
IC6505 Q6522
1K-PROT2
+B OVP
HV PROT
UNREG 11V
5V UNREG 7V
+B OCP
21
34
IC5007
VDY-
CRT
IC2801
Y/C JUNGLE
SCL
SDA
AKB
VPROT
HPROT
IC2300
MAIN MICRO
MX
CLKO
DATO
AC RLY
LOW B ERR
OVP
OCP
STR
STBY-LED
STBY-LED
P_SW(-)
IC504
5V
+B
+B +B
D
B
MX
D
D
A
2 14
34
35
58
26
25
29
30
69
43
44
45
48
O
IO
Numeral “0”
means that no fault was detected.
Numeral “1”
means a fault was detected one
time only.

— 9 —
KV-30XBR910/34XBR910
+B overcurrent (OCP)
Occurs when excessive current flows through R5013. The increase in voltage across R5013 causes the output of Q5004 to go high, and this high
signal goes to the micro.
+B overvoltage (OVP)
IC6505 detects +B OVP condition and turns on Q6522. This sends a high signal to the micro and also shuts down the AC relay.
V-STOP
Occurs when an absence of the vertical deflection pulse is detected by pin 24 of IC2801 (B Board). Power supply will shut down when waveform
interval exceeds 2 seconds.
White Balance Failure
If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will be detected by IC2801. TV will stay on, but there will be
no picture.
*(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).
Low B OCP/OVP
Occurs when set 5V is out.
Horizontal Deflection Stopped
Occurs when either:
1) a +B overcurrent is detected (IC5007), or
2) overheating is detected (Thermistor TH5002).

— 10 —
KV-30XBR910/34XBR910
Rear Cover
5 Screws
+BVTP 4 x 16
3 Screws
+BVTP 4 x 16
4 Screws
+BVTP 4 x 16
SECTION 1: DISASSEMBLY
1CAUTION! - Heat sink on IC5004 is -15V. Care must be
taken not to allow heat sink to touch any other components.
2Lift lever up on the right and left sides of the chassis bracket
and gently pull the chassis assembly away from the bezel.
Pull up and rotate both the A and D Boards in order to
service the unit.
1Lift lever up on the right and left sides of the chassis
bracket and gently pull the chassis assembly away from
the bezel.
Pull up and rotate both the A and D Boards in order to
service the unit.
2
3
1-2. CHASSIS ASSEMBLY REMOVAL
1-3. SERVICE POSITION
1-1. REAR COVER REMOVAL

— 11 —
KV-30XBR910/34XBR910
1. Remove the Sub-Woofer Assemblies.
2. Discharge the anode of the CRT and remove the
anode cap.
3. Unplug all interconnecting leads from the deflection
yoke, neck assembly, degaussing coils and CRT
grounding strap.
4. Remove the CX Board from the CRT.
5. Remove the chassis assembly.
6. Loosen the neck assembly fixing screw and remove.
7. Loosen the deflection yoke fixing screw and remove.
8. Place the set with the CRT face down on a cushion
and remove the degaussing coil holders.
9. Remove the degaussing coils.
10.Remove the CRT grounding strap and spring tension
devices.
11. Unscrew the four CRT fixing screws [located on each
CRT corner] and remove the CRT
[Take care not to handle the CRT by the neck].
1-4. PICTURE TUBE REMOVAL
WARNING: BEFORE REMOVING THE ANODE CAP
High voltage remains in the CRT even after the power is disconnected. To avoid electric shock,
discharge CRT before attempting to remove the anode cap. Short between anode and CRT
coated earth ground strap.
ANODE CAP REMOVAL PROCEDURE
WARNING: High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to
remove the anode cap. After removing the anode cap, short circuit to either the metal chassis, CRT shield, or carbon painted on the CRT.
NOTE: After removing the anode cap, short circuit the anode of the picture tube and the anode cap to either the metal chassis, CRT shield or carbon
painted on the CRT.
REMOVAL PROCEDURES
a
b
Anode Button
c
Turn up one side of the rubber cap in
the direction indicated by arrow a .
Use your thumb to pull the rubber
cap firmly in the direction indicated
by arrow b .
When one side of the rubber cap separates from
the anode button, the anode cap can be removed
by turning the rubber cap and pulling it in the
direction of arrow c .
HOW TO HANDLE AN ANODE CAP
1. Do not use sharp objects which may cause damage to the surface of the anode
cap.
2. To avoid damaging the anode cap, do not squeeze the rubber covering too
hard. A material fitting called a shatter-hook terminal is built into the rubber.
3. Do not force turn the foot of the rubber cover. This may cause the shatter-hook
terminal to protrude and damage the rubber.
Coated
Earth
Ground
Strap
5
9
64
11
8
1
3
7
10
2

— 12 —
KV-30XBR910/34XBR910
SECTION 2: SET-UP ADJUSTMENTS
The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
These adjustments should be performed with rated power supply
voltage unless otherwise noted.
The controls and switch should be set as follows unless otherwise
noted:
VIDEO MODE: STANDARD (RESET)
Perform the adjustments in order as follows:
1. Beam Landing
2. Convergence
3. Focus
4. Screen (G2)
5. White Balance
Test Equipment Required:
1. Color Bar Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital Multimeter
2-1. BEAM LANDING
Preparation:
• Use cross hatch signal to rough adjust focus, G2 and then input a
white pattern signal.
• Face the picture tube in an East or West direction to reduce the
influence of geomagnetism.
• Confirm data in service mode to match with CRT screen size.
• CXA2170D-4
• CXA8070 (Should be set to default)
• VCEN, VPIN, HTPZ, PPHA, VANG, LANG, VBOW, LBOW
(Should be set to default value).
• Set all user compensations to their default settings.
• Set landings to their default settings.
• LT Left Top LCC Control 127
• LB Left Bottom LCC Control 127
• RT Right Top LCC Control 127
• RB Right Bottom LCC Control 127
NOTE: Do not use the hand degausser. Using the degausser
magnetizes the CRT.
1. Input white pattern from pattern generator. Set the PICTURE control
to maximum, and the BRIGHTNESS control to standard.
2. Loosen the deflection yoke mounting screw, and set the purity control
to the center as shown below:
Purity Control
3. Input a green pattern from the pattern generator.
4. Move the deflection yoke backwards, (See Figure 1) 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.
Figure 1
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.

— 13 —
KV-30XBR910/34XBR910
2-3. CONVERGENCE
Preparation:
• Set the CONTRAST and BRIGHTNESS control to standard (reset).
• Input a cross hatch pattern signal.
2-3.1. VERTICAL AND HORIZONTAL STATIC
CONVERGENCE
1. Disconnect the dynamic convergence before adjusting static
convergence (CN903), except for minor touch-up.
2. Adjust H.STAT convergence, RV9001, to converge red, green, and
blue dots in the center of the screen.
3. Connect dynamic convergence back.
4. Adjust V. STAT magnet to converge red, green and blue dots in the
center of the screen.
R
G
B
Center dot
RV9001
H-STAT
V.STAT magnet
R G B
5. Tilt the V.STAT magnet and adjust static convergence to open or close
the V.STAT magnet.
B
G
R
B
G
R
1
8. Set corner landing adjustments.
To get optimal landing, adjust LT, LB, RT, and RB with Service Data -/+
70.
NOTE: If landing adjustment exceeds the limit, as a last resort you can
adjust it by using the disk magnets.
a
c
b
d
ba
cd
Purity control
corrects this area
Disk magnets
or rotatable disk
magnets correct
these areas (a-d)
Deflection yoke positioning
corrects these areas
2-2. V-PIN AND V-CEN ADJUSTMENT
Preparation:
•Input a cross hatch pattern signal.
•Set Video Mode to: Standard (Reset)
•For all 4X3 CRT, VPIN data has separate register for full and V-
compress. Adjust both modes if needed.
1. Adjust service mode CXA2170D-1 05 V-CEN so that the top pin and
bottom pin are symmetrical from top to bottom.
2. Adjust service mode CXA2170D-1 06 V-PIN so that the top pin and
bottom pin are symmetrical from top to bottom.
3. Horizontal lines should be straight from left to right. Check landing for
side effect.

— 14 —
KV-30XBR910/34XBR910
2-3.2. OPERATION OF BMC (HEXAPOLE)
MAGNET
The respective dot positions result from moving each magnet interact.
Perform the following adjustments while tracking.
1. Use the BMC tabs to adjust the red, green and blue dots so that
they line up at the center of the screen (move the dots in a horizontal
direction).
HMC Correction HMC Correction
RGB
A=B
AB
RGB
A>B
AB
RGB
A=B
AB
R
GB
A<B
AB
VMC Correction
R
G
B
C<D
C
D
R
G
B
C=D
VMC Correction
R
G
B
C<D
C
D
R
G
B
C=D
2-3.3. TLH PLATE ADJUSTMENT
Preparation:
•Input a cross hatch pattern signal.
•Adjust unbalanced horizontal convergence of red and blue dots by
adjusting the TLH Plate on the deflection yoke.
TLH Plate
RV9001
WX Board
TLV
XCV
TLH+
TLH-
R B
(B)(R)
B R
(R)(B)
1. Adjust XCV core to balance X axis.
2. Adjust the vertical red and blue convergence with V.TILT (TLV VR).
Note: Perform adjustments while tracking Item 1.
2-3.4. DYNAMIC CONVERGENCE
ADJUSTMENTS
•Set dynamic convergence using the following service mode
adjustment data.
•Only H-component can be corrected, for vertical component use
permalloy to compensate.
•After adjusting the following parameter, write data into NVM
MUTING + ENTER then copy for 1080i CPY2
(D Conv Item 13 - Change data to 1 then write.)
480P/960I 480P/960I 480P/960I 1080I 1080I 480P/960I
x x FULL FULL Vcomp Vcomp
S, TT M T, R F
WZ ZOOM FULL FULL x Normal
F,S, TT T, M, R
Device name Item # OSD 34/30XBR
CXA8070 0YBWU Adjust (31) --> Copy
1YBWL Adjust (31) --> Copy
2RSAP Adjust (31) --> Copy
3RUBW Adjust (31) --> Copy
4RUMB Adjust (31) --> Copy
5RLBW Adjust (31) --> Copy
6RLMB Adjust (31) --> Copy
7LSAP Adjust (31) --> Copy
8LUBW Adjust (31) --> Copy
9LUMB Adjust (31) --> Copy
10 LLBW Adjust (31) --> Copy
11 LLMB Adjust (31) --> Copy
12 CADJ Fix data 23/25
(Default)
Twin:T, Favorite:F, Scroll: S, MS:M, fReeze;R, Test_twin:TT
Output signal format
FOR 4:3 CRTs
Twin:T, Favorite:F, Scroll: S, MS:M, fReeze;R, Test_twin:TT
FOR 16:9 CRT
0. YBWU (Upper Y-BOW)
BR BR
1. YBWL (Lower Y BOW)
BR BR
2. RSAP (Right H AMP)
RB
3. RUBW (Right Upper BOW)
BR
4. RUMB (Right Upper Middle BOW)
BR

—15 —
KV-30XBR910/34XBR910
5. RLBW (Right Lower BOW)
RB
6. RLMB (Right Lower Middle BOW)
BR
7. LSAP (Left H AMP)
BR
8. LUBW (Left Upper BOW)
BR
9. LUMB (Left Upper Middle BOW)
BR
10. LLBW (Left Lower BOW)
BR
11. LLMB (Left Lower Middle BOW)
BR
12. CADJ Fix 29
2-3.5. SCREEN-CORNER CONVERGENCE
Preparation:
•Input a cross hatch pattern signal.
1. Affix a permalloy assembly corresponding to the misconverged areas.
d
c
a
b
a-d: screen-corner
misconvergence
ab
cd

—16 —
KV-30XBR910/34XBR910
2-4. FOCUS ADJUSTMENT
Confirm neck assembly Z axis position.
1. Input a dot signal.
2. Set Video Mode to STANDARD.
3. Input a HD monoscope signal.
4. Confirm center focus with focus VR.
FOCUS
Screen (G2)
DOT SHAPE:
NOTE: The Neck Assembly tilt
can effect dot shape.
NOTE: Changing neck assembly position will affect corner convergence.
NOTE: Just position is the adjustment position
from the center location indicated.

—17 —
KV-30XBR910/34XBR910
2-4.1. DYNAMIC FOCUS/DYNAMIC QUADRA-POLE DATA
Normally, no adjustments are necessary for these systems. If for some reason the data is lost, use the initial data.
2-5. SCREEN (G2)
1. Input composite white field into Video 1.
2. Set to service mode and adjust as follows:
(Fig 1) Operation Procedure Standards Notes
CXA2170P-2 PICO 1 →0 1) In Full mode, apply changes in
Fig 1
2) Mount G2 adjustment jig.
Adjust Cathode voltage if the
standard is not met. Standard
varies by CRT size.
3) Adjust G2 by Flyback
Transformer (T8001).
4
) Return data changes in 1) to
original condition.
170 ±5 (Vpc) 30XBR & 34XBR
white
black
GND
VR2
VR1
VR
(KV-30XBR910/34XBR910) = 1.60 ± 0.05 Vpp
4. Write data from Step 3 above, into memory.
2-6.2. VIDEO INPUT - SUB HUE/SUB COLOR
ADJUSTMENT
Preparation:
•Input a Color Bar signal to VIDEO 1 (75 IRE 75%).
•Set picture mode: Single (PRO MODE Reset).
•Picture: Max
1. Set to Service Mode and adjust as follows:
NO. Name Control Function Avg. Data
01 RGBS R ON 7
2170P-2
2. Connect an oscilloscope to Pin 5 of CN9001 (B. DRV) on the C Board.
3. Adjust color according to Service Mode for SCLO.
2-6. PICTURE QUALITY ADJUSTMENTS
Preparation:
•Set PRO MODE (Reset).
1. Input signal (480i Composite):
•Color Bar Video 75 IRE (White) 75% modulation 7.5% Set-up.
•Color Bar RF 75 IRE (White) 75% modulation 7.5% Set-up.
2-6.1. VIDEO INPUT - SUB CONTRAST
ADJUSTMENT
Preparation:
•Input a Color Bar signal to VIDEO 1 (75 IRE 75%).
•Set picture mode: Single (PRO MODE Reset).
•Picture: Max
1. Set to Service Mode and adjust as follows:
NO. Name Control Function Avg. Data
01 RGBS R ON 4
2170P-2
2. Connect oscilloscope to Pin 1 of CN9001 (R.DRV) on the C Board.
3. Adjust contrast according to the service mode item: SPIO.
NO. Name Control Function
04SPIO SUB-CONT
2170-P4

—18 —
KV-30XBR910/34XBR910
4. Adjust color according to Service Mode for SHUO.
NO. Name Control Function
03 SCLO SUB-COLOR
04 SHUOSUB-HUE
2170P-4
VB4
VB3VB2VB1
COLOR: VB1 < VB4 (=20 ± 40 mV)
HUE: VB2 < VB3 (=20 ± 40 mV)
7. Write data into memory.
2-6.3. RF INPUT - TWO PICTURE SUB
CONTRAST ADJUSTMENT
Preparation:
•Input a Color Bar signal to RF (75 IRE 75%).
•Set picture mode: P&P (PRO MODE).
•Picture: Max
1. Set to Service Mode and adjust as follows:
NO. Name Control Function Avg. Data
01 RGBS R ON 4
2170P-2
2. Connect an oscilloscope to Pin 1 of CN9001 (R. DRV) on the C Board.
3. Adjust MAIN (left) side contrast according to service mode for SCON.
NO. Name Control Function
02 SCON SUB-CONT
2103-1
4. Adjust SUB (right) side contrast according to Service Mode for SCON.
NO. Name Control Function
02 SCON SUB-CONT
2103-2
white
black
GND
VR2
VR1
VR
(KV-30XBR910/34XBR910) = 1.60 ± 0.05 Vpp
5. Write data from Steps 3 - 4 above, into memory.
6. Set Service Mode
2-6.4. RF INPUT - SUB HUE/SUB COLOR
ADJUSTMENT
Preparation:
•Input a Color Bar signal to RF (75 IRE 75%).
•Set picture mode: P&P (PRO MODE Reset).
•Picture: Max
1. Set to Service Mode and adjust as follows:
NO. Name Control Function Avg. Data
01 RGBS R ON 7
2170P-2
2. Connect an oscilloscope to pin 5 of CN9001 (B. DRV) on the C Board.
3. Adjust MAIN (left) side color according to Service Mode for SCOL.
4. Adjust MAIN (left) side color according to Service Mode for SHUE.
NO. Name Control Function
03 SCOL SUB COLOR
04 SHUE SUB HUE
2103-1
5. Adjust SUB (right) side color according to Service Mode for SCOL.
6. Adjust SUB (right) side color according to Service Mode for SHUE.
NO. Name Control Function
03 SCOL SUB COLOR
04 SHUE SUB HUE
2103-2
VB4
VB3VB2VB1
COLOR: VB1 < VB4 (=20 ± 40 mV)
HUE: VB2 < VB3 (=20 ± 40 mV)
7. Write data into memory.

—19 —
KV-30XBR910/34XBR910
2-7. WHITE BALANCE (CRT) AND SUB
BRIGHT ADJUSTMENT
Preparation
•Input an all white 480I (15.734 KHz) signal into the VIDEO 1 input
terminal to perform the White Balance (highlight, cut-off) adjustments.
The parameters to adjust are in the CXA2170P in Service Mode.
2-7.1. COLOR OFFSET ADJUSTMENT
PROCEDURE
Preparation:
•Input an all white (30 IRE) signal to the specified input.
•Adjust the white balance using the specified registers.
VIDEO 1
CXA2103-1
NO. Name Control Function
20 CBO1 CB OFFSET
21 CRO1 CR OFFSET
VIDEO 5
CXA2103-1
NO. Name Control Function
20 CBO1 CB OFFSET
21 CRO1 CR OFFSET
VIDEO7-DVI
CXA2103-1
NO. Name Control Function
22 CBO2 CB01 (FROM VIDEO 5) - 5
23 CRO2 CR01 (FROM VIDEO 5) -4
2-8. H RASTER CENTER ADJUSTMENT
Preparation:
•Input a monoscope signal.
•Set to NTSC (DRC) mode.
1. Set to Service Mode and adjust as follows:
NO. Name Control Function Avg. Data
06 AGNG AGING 1, AGING 2 2
NO. Name Control Function Avg. Data
02 HSIZ Horiz Size 45
NO. Name Control Function Avg. Data
00 HBLK Blanking Enable 0
CXA2150P-2
CXA2150D-2
CXA2150D-3
2. Reduce HSIZ to see sides of raster.
3. Adjust H-Center with CXA2170D-2.
4. Adjust to the best screen position with H-CENT and write data.
5. Restore aging, HSIZ and HBLK to original condition.
Raster Edge Equal:
RASTER
EDGES
RASTER

—20 —
KV-30XBR910/34XBR910
2-9. PICTURE DISTORTION ADJUSTMENTS
2-9.1. NTSC (DRC) FULL MODE
ADJUSTMENT
1. Face the picture tube in an east-west direction. (For best condition.)
2. Complete V-PIN and V-CEN adjustments first (A2170-D1 06 V-PIN,
A2170-D1 05 V-CEN).
3. Input a monoscope and crosshatch signal. Adjust the picture
distortion with the following service parameters to balance the best
condition for these two signals.
NOTE: Make sure that the picture size is within specs. Vertical size is
11.8 ± 0.1 sq. and horizontal size is 15.8 ± 0.1 sq.
4. Write data into memory before changing modes.
CXA2170D-1
Item 0. VPOS (V-POSITION)
Item 1. VSIZ (V-SIZE)
Item 3. VLIN (V-LINE)
Item 4. VSCO (VS-COR)
Item 9. HTPZ (H-TRAPEZOID)
CXA2170D-2
Item 1. HPOS (H-POSITION)
Item 2. HSIZ (H-SIZE)
Item 5. PIN (PIN AMP)
Item 7. UCP (UP COR PIN COR)
Item 8. LCP (LOW CO PIN COR)
Item 14. PPHA (PIN PHASE)
Item 15. VANG (AFC-ANGLE)
Item 16. LANG (L-ANGLE)
Item 17. VBOW (AFC-BOW)
Item 18. LBOW (L-BOW)