Sony Trinitron KV-HS29M90 User manual

SERVICE MANUAL
CHASSIS AG-3F
MODEL COMMANDER DEST.CHASSIS NO.MODEL COMMANDER DEST.CHASSIS NO.
KV-HS29M61 RM-997 ES SCC-M03-A
KV-HS29M90 RM-997 HK SCC-P96-C
KV-HS29M91 RM-997 ME SCC-P98-C
KV-HS34M61 RM-997 GE SCC-P97-A
KV-HS34M61 RM-997 S SCC-M01-A
KV-HS34M90 RM-997 HK SCC-P96-A
TRINITRON ® COLOR TV
TV
VIDEO
DRC-MF
HD/DVD
123
456
78
0
9
JUMP
PROG
OPTION RESET
A/B
V CENTER
PROG
INDEX
MENU
RM-997 KP-HS29M61/M90/M91,
KP-HS34M61/M90/M91,
KP-HS38M61/M90/M91
KV-HS34M91 RM-997 ME SCC-P98-A
KV-HS38M61 RM-997 GE SCC-P97-B
KV-HS38M61 RM-997 S SCC-M01-B
KV-HS38M90 RM-997 HK SCC-P96-B
KV-HS38M91 RM-997 ME SCC-P98-B

– 2 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
KV-HS29M61/M91 KV-HS29M90
KV-HS34M61/M91 KV-HS34M90 KV-HS38M61/M90/M91
Power requirements 110-240 V AC, 50/60 Hz 220V AC, 50Hz 220-240 V AC, 50/60 Hz
Power consumption (W) Indicated on the rear of the TV.
Television system B/G, I, D/K, M
Color system PAL, PAL 60, SECAM, NTSC4.43, NTSC3.58
Stereo system NICAM Stereo/Bilingual B/G, I; A2 Stereo (German) B/G
Channel coverage
B/G VHF: E2 to E12 / UHF: E21 to E69 / CATV: S01 to S03, S1 to S41
IUHF: B21 to B68 / CATV: S01 to S03, S1 to S41
D/K VHF: C1 to C12, R1 to R12 / UHF: C13 to C57, R21 to R60
CATV: S01 to S03, S1 to S41, Z1 to Z39
MVHF: A2 to A13 / UHF: A14 to A79 /
CATV: A-8 to A-2, A to W+4, W+6 to W+84
˘(Antenna) 75-ohm external terminal
Audio output (Speaker) 15W + 15W (12W + 12W : 7 % distortion)
Number of terminal
(Video) Input: 4 Output: 1 Phono jacks; 1 Vp-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 Input: 2 Phone jacks
Video) Y : 1 Vp-p, 75 ohms, sync negative
CB: 0.7 Vp-p, 75 ohms
CR: 0.7 Vp-p, 75 ohms
Audio : 500 mVrms
(R/G/B/HD/ Input: 1 Phone jacks
VD Video) R : 0.7 Vp-p, 75 ohms
B : 0.7 Vp-p, 75 ohms
G : 0.7 Vp-p, 75 ohms
HD : 0.7 Vp-p, 75 ohms
VD : 0.7 Vp-p, 75 ohms
2(Headphones) Output: 1 Stereo minijack
Picture tube 29 inch 34 inch 38 inch
Tube size (cm) 72 86 97
(Measured diagonally)
Dimension (w/h/d, mm) 772 ×587 ×562 898 ×678 ×581 994 ×755 ×623
Mass (kg) 58 86 112
SPECIFICATIONS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK !ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
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.
Design and specifications are subject to change without notice.

– 3 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
TABLE OF CONTENTS
Section Title Page
SELF DIAGNOSIS FUNCTION .................................. 4
1. DISASSEMBLY
1-1. Rear Cover Removal .............................................. 8
1-2. Speaker Box Removal ............................................ 8
1-3. Chassis Assy Removal ............................................. 8
1-4. Service Position ....................................................... 9
1-5. DC Board Removal .................................................. 9
1-6. J Board Removal ...................................................... 9
1-7. D Board Removal .................................................. 10
1-8. A, A1, and E Boards and B4 Block Removal ...... 10
1-9. H1, H2, MS2, and F2 Boards Removal ................ 11
1-10. Picture Tube Removal (1) ...................................... 11
1-11. Picture Tube Removal (2) ...................................... 12
1-12. Harness Ranning .................................................... 13
2. SET-UP ADJUSTMENTS
2-1. Beam Landing Adjustment .................................... 15
2-2. Convergence Adjustment ....................................... 16
2-3. Focus Adjustment .................................................. 18
2-4. Neck Assy Twist Adjustment ................................. 18
2-5. G2 (Screen) and White Blance Adjustments ......... 19
3. CIRCUIT ADJUSTMENTS
3-1. Adjustments with Commander .............................. 20
3-2. Adjustment Method ............................................... 21
3-3. Picture Quality Adjustments .................................. 35
3-3-1. Preparation ......................................................... 35
3-3-2. NTSC Video Input ............................................. 36
3-3-3. NTSC RF Input ................................................. 36
3-3-4. PAL Video Input ................................................ 37
3-3-5. PAL RF Input ..................................................... 37
Section Title Page
4. SAFETY RELATED ADJUSTMENTS
4-1. HV Regulation Adjustment .................................... 38
4-2. HV Hold-down Adjustment ................................... 38
4-2-1. HV Protector Adjustments ................................ 38
4-2-2. HV Protector Check ......................................... 38
4-3. +B Max Voltage Confirmation ............................... 39
4-4. +B OVP Confirmation ........................................... 39
5. DIAGRAMS
5-1. Block Diagrams ...................................................... 40
5-2. Circuit Boards Location ......................................... 56
5-3. Schematic Diagrams ............................................... 57
5-4. Semiconductors .................................................... 124
6. EXPLODED VIEWS
6-1. Picture Tube .......................................................... 128
6-2. Chassis .................................................................. 130
6-3. Packing Materials ................................................. 132
7. ELECTRICAL PARTS LIST ................................... 133

– 4 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
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”.
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
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.
• Power does not come on.
• Vertical deflection pulse is
stopped.
• Vertical size is too amall.
• Vertical deflection stopped.
• Power line is shorted or
power supply is stopped.
• No raster is generated.
• CRT cathode current
detection reference pulse
output is small.
• H pulse output is too high.
• Low B (-10.5V) is too Low.
• There is picture but speaker
does not release sound.
• Power is shut down shorlty,
after this return back
tonormal
• Detect Micro latch up.
Probable
Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out F1601
(F1 Board)
• H.OUT Q5030 is shorted.
• Q5003(PWM-OUT) is
shorted.
• PH 6502 faulty.
• 135V Line is overvoltage
supplied. (D board)
• V.OUT IC5004 faulty
D5001 faulty
D5002 faulty
D5035 faulty
D5036 faulty
R5173 or R5172 open.
• G2 is improperly adjusted.
(Note 2)
• CRT problem.
• Video OUT IC9001,9002,
9003 are faulty. (C1 board)
• IC4301 (E board) are faulty.
• No connection E board to
C1 board.
• C5064 is open circuit.
• CN5002(D board) is
disconnected.
• HOP circuit is failure.
• -10.2V Power Supply or
IC2601 or IC2602 are
failure.
• CN6101 (D board) is
disconnected
• Power Supply fails.
• IC2003, IC1204 faulty.
• Discharge CRT (C1 Board)
• Static discharge
• External noise
Diagnostic
Item
Description
• Power does not
turn on
• +B overcurrent
(OCP) or
• +B overvoltage
(OVP)
• Vertical deflection
failure
• White balance
failure
(no PICTURE)
• Horizontal
deflection failure
• Audio Protection
• Micro reset
Self-diagnostic
display/Diagnostic
result
—
002:000 or
002:001~255
003:000 or
003:001~255
004:000 or
004:001~225
005:000 or
005:001~225
006:000 or
006:001~225
007:000 or
007:001~22500
101:00 or
101:001~225
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
3 times
4 times
5 times
6 times
7 times
-

– 5 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
Diagnostic Item Flash Count*
+B overcurrentovervoltage 2 times
+B overvoltage 3 times
V deflection stop 4 times
White balance failure 5 times
High voltage protecter 6 times
Audio protection 7 times
* One flash count is not used for self-diagnostic.
3. STOPPING THE 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.
Lamp ON 0.3 sec.
Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
2 times
5 times
4 times
5 times
6 times
7 times
STANDBY/SLEEP lamp
•One flash count is not used for self-diagnostic.

–6 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
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 entering the service mode (mode volume [+]).
Self-Diagnosis screen display
002 : 000
003 : 000
004 : 000
005 : 001
006 : 002
Numeral "0" means that no fault has been detected.
Numeral "1" means a fault has been detected.
007 : 000
101 : 000
SELF DIAGNOSTIC
Numeral "2" means two faults have been detected.
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 diag-
nostic 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-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
6. SELF-DIAGNOSTIC CIRCUIT
[+BovercurrentªOCPº] Occurs when an overcurrent on the +B(135) line is detected by Q5004(D board). If
Q6610(D board) go to ON, the voltage to pin 5 of IC001(A board) go to UP. The unit
will automatically turn off.
[+BovervoltageªOVPº] Occurs when an overdrive on the +B(135V) line is detected by D6635(D board), Q6611
and Q6619. If Q6611 go to ON, the voltage to pin 8 of IC001 go to UP. The unit will
automatically turn off.
[Verticalde lection ailure] Occurs when an absence of the vertical deflection pulse is detected by Q5010. Shut
down the power supply.
[Whitebalance ailure] If the RGB levels do not balance or become low level within 5 seconds. This error will
be detected by IC4300. TV will stay on, but there will be no picture.
[HighvoltageundervoltageprotectionªHVUVPº]
High-voltage undervoltage conditions may indicate defective transformer, rectifiers,
CRT or fault within the power supply circuit. When high-voltage drops for any reason,
so does the voltage at T8001.17 and buffer IC8004.7. The malfunction is detected by
comparator IC8006A that generates high logic signal labeled H PROT. This signal is
sent via D8014 to the H prot that opens contacts of the AC relay RY6501 and turns off
main power.
[AudioProtector] If the Audio out line became DC. This error will be detected by Q1211, Q1209, and
Q1210.The unit will automatically turn off.
IC4300
CXA2170Q
RGB JUNGLE
FROM
CRT(IK)
Q5018, D8035
(D Board)
IC001
SYSTEM
IC003
MEMORY
IO-SDAT
IK-IN
HPROT
SDA1
LED
SDA0
515
24
57
22
4652
Q5010
(D Board)
V PROT
56
OCP
V PROT
5
OVP
V PROT
8
H PROT 87
IC2602
( A Board)
Au PROT
100
IC1203,1240
(A Board)

– 8 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
SECTION 1
DISASSEMBLY
1-3. CHASSIS ASSY REMOVAL
1-1. REAR COVER REMOVAL
1-2. SPEAKER BOX REMOVAL
1Two screws
(+PWHTP 4X25)
2Arm (R) block assy
1Claws (Main bracket)
2Chassis assy
2Rear cover
1Four screws (KV-HS38M90)
(+BVTP 4X16)
1Two screws (KV-HS29/34M90)
(+BVTP 4X16)
1Four screws (KV-HS38M90)
(+BVTP 4X16)
1Two screws (KV-HS29/34M90)
(+BVTP 4X16)
1Four screws
(+BVTP 4X16)
1Four screws
(+BVTP 4X16)
1Four screws (KV-HS38M90)
(+BVTP 4X16)
1Four screws (KV-HS29/34M90)
(+BVTP 4X16)

–9 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
1-6. J BOARD REMOVAL
1-5. DC BOARD REMOVAL
2DC board
Claws
1Four screws
(+BVTP 3X12)
1-4. SERVICE POSITION
1Mounting side
2Chassis assy
1Screw
(+BVTP 3X12)
1Screw
(+BVTP 3X12)
3Four screws
(+BVTP 3X12)
5J Cover
6Claws
7J blacket
9Shield plate J
!J board
Shield
2Screw
(+PSW 3X6)
8Four screws
(+BVTP 3X12)

–10 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
1-7. D BOARD REMOVAL
1-8. A, A1, V2 AND E BOARDS, AND B4 BLOCK REMOVAL
3Three screws
(+BVTP 3X12)
1Two screws
(+BVTP 3X12)
1Two screws
(+BVTP 3X12)
4F1 board
5A1 board
2A board
9E board
BM1C board
8B4 board
B4 block
6Four screws
(+BVTP 3X12)
7Shield cover
Claws
Claws
V2 board
1Four screws
(+BVTP 3X12)
2Three crews
(+BVTP 3X12)
3D board

–11 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
1-9. H1, H2, MS2, AND F2 BOARDS REMOVAL
1-10. PICTURE TUBE REMOVAL (1)
2F2 board
4MS2 board
6H1 board
8H2 board
3Two screws
(+BVTP 3X12)
5Screw
(+BVTP 3X12)
1Screw
(+BVTP 3X12)
7Screw
(+BVTP 3X12)
Claws
Claws
Claws
Claws
5DGC Clip (38")
5DGC Clip (34")
5DGC Clip (29")
1DGC Holder (34"/38")
1DGC Holder (29")
4CRT Supporter
3Tension spring
2Degauss coil (with LCC)
2Degauss coil (with LCC)

–12 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
1C1 board
2V board (34"/38")
V3 board (29")
3NA Rotation coil
4Tapping screw (with Crown washer)
5CRT
1-11. PICTURE TUBE REMOVAL (2)

–13 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
CN902
CN1901
CN1980
CN5505
CN6503
CN6604
CN6603
CN6605
CN5403 CN5901
CN5808
CN5803
CN5802
CN5805
To
NS Coil
NS Coil
CN5801 CN5807
CN5806
CN5506 CN5801
CN5509
CN5011
CN6101
CN5009
CN5001
CN4302
CN4305
To C1 board
LCC Coil
Degauss coil (with LCC)
Degauss coil (with LCC)
CN1933 CN1934
CN1932
CN1602
CN5003
CN5002 CN1604
AC Cord
CN1601
CN1101
CN1100
TU3301 TU101
CN1603
CN1935
CN1402
< F2 board > < MS2 board >
< D board >
< DC board >
< A board >
< E board >
< B4 board >
< H1 board > < H2 board >
< J board >
< V board >
< C1 board >
SP (R)
SP (L)
CN1903
< E board >
< F1 board >
CN9101
CN9102
CN9002
CN9001
J9001
CN1161
CN101
CN402
CN1163
CN1162
CN1160
CN1164
CN1293
CN1196
CN1190
<BM1C
board >
< V2 board >
1-12. HARNESS RANNING

–14 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
•REMOVAL OF ANODE-CAP
NOTE : After removing the anode, short circuit the anode of
the picture tube and the anode cap to the metal chas-
sis, 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
b
c
a
a
1Tern up one side of the rubber cap in the direction indicated
by the arrow a.
2Using a thumb pull the rubber cap firmly in the direction
indicatid by the arrow b.
3When one side of the rubber cap is separated from the
anode button, the anode-cap can be removed by terning up
the rubber capand pulling it up in the directin off the arrow
c.
Anode button

– 15 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
•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.
Controls and switches should be set as follows unless otherwise
noted:
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 2
SET-UP ADJUSTMENTS
................................................................................................................................................................................................................................
Fig. 2-1
Neck assy
Behind the G2 edge
Neck assy
G2G1 G3
Behind the G2 edge
G2G1 G3
Fig. 2-2
Fig. 2-3
Red
Blue
Green
Fig. 2-4
Purity control
corrects this area. Disk magnets or rotatable
disk magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
a
b
cd
b
c
d
a
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.
2-1. BEAM LANDING ADJUSTMENT
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 2-1 through 2-3.)
5. Move the deflection yoke forward and adjust so that the entire
screen is green. (See Figure 2-2.)
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 2-4.)
}normal
<KV-HS29><KV-HS34/38>

–16 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
2-2. 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 the V.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. S TAT
2H. STAT VR
3
C1 Board
Center dot
R G B
R
G
B
H. STAT VR V. STAT
Magnet
RR
GG
BB
a
a
b
b b
R
R
G
G
B
B
a
b
R
R
GG
B
B
a
a
b
b
b
V.STAT
Purity

–17 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
(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 the Y axis.
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
R
(B)
B
(R)
B
(R)
TLH +
TLH -
R
(B)
4. Adjust YCH.
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.
<KV-HS29>
<KV-HS34/38>
H-TRP
YCH
TLV
XCV
FRONT
V3 board (KV-HS29M90)
C1 board
BMC magnet
RV702
V board (KV-HS34/38M90)
C1 board
BMC magnet
RV702
H-TRP
(TLV1)
YCH TLV
(TLV2)
RV1 RV3RV2
XCV
TOP

–18 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
2-3. 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 FOCUS.
2-4. NECK ASSY TWIST ADJUSTMENT
(1) Receive dot/hatch pattern.
(2) Turn FOCUS VR fully counter-clockwise.
(3) Confirm the dot shape at the screen center. (Fig. 2-5)
(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. 2-5
Fix a Permalloy assy corresponding to the misconverged
areas.
(3) Screen-corner Convergence
ba
cd
a-d : screen-corner
misconvergence
a
b
c
d
Permalloy assembly
Forcus

–19 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
3. SUB PICTURE BRIGHTNESS ADJUSTMENT
1) Tune RF PAL white signal at program No. 1 and No. 2.
2) Select “TWIN PICTURE” mode.
3) Receive different RF PAL white signals in MAIN and Sub pic-
ture.
4) Adjust RV3300 on A Board, so that the output from the A8 pin
and A5 pin of the CN1180 becomes within the spec.
CVBS 1
A8 pin
CVBS 2
A5 pin
2-5. G2 (SCREEN) AND WHITE 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 oscillo-
scope.
4) Adjust BRIGHTNESS to obtain the cathode voltage to the
value below.
5) Whilst watching the picture, adjust the Screen VR (RV9002)
located on the C1 board to the point just before the flyback
return lines disappear (to the point before cut-off).
2. WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 3-1: ADJUSTMENTS
WITH COMMANDER).
2) Input white raster signal.
3) Set the following condition.
PICTURE minimum, BRIGHTNESS 50%
4) Select GCT (WHB 8) and BCT (WHB 9) with 1and 4, and
adjust the level with 3and 6for the best white balance.
5) Set the PICTURE to maximum.
6) Select GDR (WHB 5) and BDR (WHB 6) with 1and 4,
and adjust the level with 3and 6for the best white bal-
ance.
7) Write into the memory by pressing [MUTING] then -.
0 V
170 V ±2 (VDC)
MAIN
A
SUB
B
Spec: |A - B| ±20mV

– 20 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
SECTION 3
CIRCUIT ADJUSTMENTS
With the unit on standby
↓
[DISPLAY]
↓
5
↓
VOL (+)
↓
[POWER]
This operation sequence puts the unit into service mode.
3-1. 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.)
[DISPLAY], -Write 50Hz adjustment data to 60Hz, or vice
versa.
2, -Write 50Hz adjustment data to 60Hz, or vice
versa.
RM-997
b. METHOD OF CANCELLATION FROM SERVICE
MODE
Set the standby condition (Press [POWER] button on the commander),
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. MEMORY WRITE CONFIRMATION METHOD
1) After adjustment, pull out the plug from AC outlet, and then
plug into AC 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 :
TV
VIDEO
DRC-MF
HD/DVD
123
456
78
0
9
JUMP
PROG
OPTION RESET
A/B
V CENTER
PROG
INDEX
MENU
PAL, SECAM : 50
NTSC : 60
00 VPS 1C SERVICE
Data
Mode
Item Name
Item No
Software version
Suffix No (OEM Code) Total Power-On time (hours)
GE1
2. 4M 00 00B5FF601S0
Device Name
50