Page 1
SERVICE MANUAL
COLOUR TELEVISION
HV-34LZ
BASIC CHASSIS
HV-34LZ
HV-34LZ
HV-34LZ
HV-34LZ
MF
/HK
/-A
/EE
[RM-C1030]
HV-34LZ
HV-34LZ
HV-34LZ /EE
[RM-C1031]
HV-34LZ
/-A
/HK
CONTENTS
SPECIFICATIONS ････････････････････
!
SAFETY PRECAUTIONS ･･････････････
!
MAIN DIFFERENCE LIST ･･････････････
!
FEATURES･･････････････････････････
!
FUNCTIONS ･････････････････････････
!
1
･･････････････････････････ 4
････････････････････････････････････････････････････
････････････････････ 2
････････････････････････････････････････
･･････････････ 3
････････････････････････････
･･････････････ 4
････････････････････････････
･････････････････････････ 6
･･････････････････････････････････････････････････
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
SPECIFIC SERVICE INSTRUCTIONS････
!
SERVICE ADJUSTMENTS････････････
!
PARTS LIST ･･･････････････････････
!
★ OPERATING INSTRUCTIONS
★ STANDARD CIRCUIT DIAGRAM･･･････
･･･････････････････････ 37
･･････････････････････････････････････････････
････････････15
････････････････････････
････ 8
････････
･･･････ 2-1
･･････････････
No.52020
Sep. 2002
Page 2
HV-34LZ
SPECIFICATIONS
Item Content
Dimensions ( W××××H××××D ) 89.8cm×72.8cm×57.9cm
Mass 68.0kg
TV RF System B/G, I, D/K, K1, M
Colour System PAL / SECAM / NTSC 3.58 / NTSC 4.43
Stereo System
Teletext System
VL
Receiving
Frequency
Intermediate
Frequency
Colour Sub Carrier
Frequency
Power Input
Power Consumption Max 215W / Avg. 153W
Aerial Input Term
Picture Tube 34”(87cm) measured diagonally
High Voltage 32.0kV (At zero beam current )
Audio Power Output 7W + 7W
Speaker
Input
Terminal
Output
Terminal Audio(L/R) 500mV(r ms) (-4dBs), Low Impedance
AV Compulink
Headphone jack
Remote Control Unit
VH
UHF
CATV
VIF 38.0MHz
SIF 32.5MHz(5.5MHz) / 32.0MHz(6.0MHz) / 3.15MHz(6.5MHz) / 33.5MHz ( 4.5MHz)
PAL 4.43MHz
SECAM 4.40625MHz / 4.25MHz
NTSC 3.58MHz / 4.43MHz
Video
Audio(L/R) 500mV(r ms) (-4dBs), High Impedance
S / Video
Component Cb/Cr
Video 1V(p-p) 75Ω
A2 (B/G) / NICAM (B/G, I, D/K)
Fastext (UK system) **** [ **** Without TEXT mode : HV-34LZ
WST(world standard text)
46.25MH z ～ 168.25MHz
175.25MHz ～ 463.25MHz
471.25MHz ～ 863.25MHz
Mid (X～Z+2, S1～S10), Super (S11～S20) & Hyper (S21～S41)
AC 110V～240V , 50/60Hz
75Ωunbalanced, C oaxial
+1.0kV
-1.5kV
5×12cm Oval type×2
1Vp-p 75Ω
Y : 1V(p-p) Positive (N egative sync provided) 75Ω
C : 0.286V(p-p) (burst signal), 75Ω
Y : 1V(p-p), 75Ω
Cb : B-Y 0.7V(p- p), 75Ω / Cr : R-Y 0.7V(p-p), 75Ω
Mono mini jack (φ3.5mm )
Stereo mini jack (φ3.5mm )
RM-C1030 (AA/R06 / UM-3 , Dry cell battery×2) : HV-34LZ / HV-34LZ
RM-C1031 (AA/R06 / UM-3 , Dry cell battery×2) : HV-34LZ
/HK
/-A
/ HV-34LZ
/HK ]
/EE
Design & specifications are subject to change without notice
2
No.52020
.
Page 3
SAFETY PRECAUTIONS
HV-34LZ
1. The design of this product cont ains special hardware, many
circuits and components specially for safety purposes. For
continued protection, no changes should be made to the original
design unless authorized in writing by the manufacturer.
Replacement parts must be identic al to those used in the original
circuits. Service should be performed by qualified personnel
only.
2. Alterations of the design or circuitry of the products should not be
made. Any design alterations or additions will void the
manufacturer's warranty and will further relieve the manufacturer
of responsibility for personal injur y or property damage resulting
theref rom.
3. Many electric al and mechanical parts in the products have
special safety-related characteristics. These characteristics are
often not evident from visual inspection nor c an the protection
afforded by them necessarily be obtained by using replacement
components rated for higher voltage, wattage, etc. Replacement
parts which have these special safety characteristics are
identified in the parts list of Service manual. Electrical
components having such features are identified by shading
on the schematics and by (!!!!) on the parts list in Service
manual. The use of a substitute replacement which does not
have the s ame safety characteristics as the recommended
replacement part shown in the parts list of Service manual may
cause shock, fire, or other hazards.
4. Don't short between the LIVE side ground and ISOLATED
(NEUTRAL) side ground or EARTH side ground when
repairing.
Some model's power circuit is partly different in the GND. The
differenc e of the GND is shown by the LIVE : (") side GND, the
ISOLATED(NEUTRAL) : (#) side GND and EARTH : ($) side
GND. Don't short between the LIVE side GND and
ISOLATED(NEUTRAL) side GND or EARTH side GND and
never meas ure with a measuring apparatus (oscilloscope etc.)
the LIVE side GND and ISOLATED(NEUTRAL) side GND or
EARTH side GND at the same time.
If above note will not be kept, a fuse or any parts will be broken.
5. If any repair has been made to the chassis, it is recommended
that the B1 setting should be checked or adjusted (See
ADJUSTMENT OF B1 POWER SUPPLY).
6. The high voltage applied to the picture tube must conform with
that specified in Service manual. Excessive high voltage can
cause an incr ease in X-Ray emission, arcing and possible
component damage, therefore operation under excessive high
voltage conditions should be kept to a minimum, or should be
prevented. If severe arcing occurs, remove the AC power
immediately and det ermine the caus e by visual inspection
(incorrect installation, cr acked or melted high voltage harness,
poor soldering, etc.). To maintain the proper minimum level of
soft X-Ray emission, components in the high voltage circuitry
including the picture tube must be the exact replacements or
alternatives approved by the manuf acturer of the complete
product.
7. Do not check high voltage by drawing an arc. Use a high voltage
meter or a high voltage probe with a VTVM. Discharge the
picture tube before attempting meter connection, by connecting
a clip lead to the ground frame and connecting the other end of
the lead through a 10kΩ 2W resistor to the anode button.
8. When service is required, obser ve the original lead dress. Extra
precaution should be given to assure correct lead dress in the
high voltage circuit area. W here a short circuit has occurr ed,
those components that indicate evidenc e of overheating should
be replaced. Always us e the manufactur er's replacement
components.
9. Isolation Check
(Safety for Electrical Shock Hazard)
After re-assembling the product, always perf orm an isolation
check on the exposed metal parts of the cabinet (antenna
terminals, video/audio input and output terminals, Control knobs,
metal c abinet, screwheads, earphone jack, c ontrol shafts, etc.)
to be sure the product is safe to operate without danger of
electr ic al sh oc k.
(1) Dielectr ic Strength Test
The isolation between the AC primary circuit and all metal parts
exposed to the user, particularly any expos ed metal part having a
return path to the chassis should withstand a voltage of 3000V
AC (r.m.s.) for a period of one second.
(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an applianc e
rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated
200V or more, for a period of one second.)
This method of test requires a test equipment not gener ally found
in the s ervice trade.
(2) Leakage Current Check
Plug the AC line cord directly into the AC outlet (do not use a line
isolation transformer dur ing this check.). Using a " Leakage
Current T ester", measure the leakage current from each exposed
metal part of the cabinet, particularly any exposed metal part
having a return path to the chassis, to a known good earth
ground (water pipe, etc.). Any leakage c urrent must not exceed
0.5mA AC (r.m.s.).
However, in tr opical area, this must not exceed 0.2mA AC
(r.m.s.).
"""" Alternate Check Method
Plug the AC line cord directly into the AC outlet (do not use a line
isolation transformer during this check.). Use an AC voltmeter
having 1000 ohms per volt or more sensitivity in the following
manner. Connect a 1500Ω 10W resistor paralleled by a 0.15µF
AC-type capacitor between an expos ed metal part and a known
good earth ground (water pipe, etc.). Measure the AC voltage
across the resistor with the AC voltmeter. Move the resistor
connection to each exposed metal part, particularly any exposed
metal part having a return path to the chassis, and measure the
AC voltage across the resistor. Now, reverse the plug in the AC
outlet and repeat each measurement. Any voltage meas ured
must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA
AC (r.m.s.).
However, in tr opical area, this must not exc eed 0.3V AC (r.m.s.).
This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER
(HAVING 1000 Ω/V,
OR MORE SENSITIVITY)
0.15μF AC-TYPE
PLACE THIS PROBE
1500 Ω 10W
GOOD EARTH GROUND
ON EACH EXPOSED
METAL PART
No.52020
3
Page 4
HV-34LZ
WST
MAIN DIFFERENCE LIST
!!!!
Part name
MICOM PWB SMF-0M701A SMF-0M702A SMF-0M703A SMF-0M704A
!
POWER CORD
JVC MARK LC41037- 001A LC41037- 003A LC41037-001A
!
REAR COVER LC10180- 003A-HH LC10180- 005A-H LC10180-003A-HH
!
INST BOOK LCT1200-001A-H LCT1201- 001A-H LCT1200-001A-H LCT1202-001A-H
REMOTE CONTROL UNIT RM-C1030-1H RM-C1031-2H RM-C1030-1H
!
DIGEST MANUAL ××LCT1203- 001A-H ×
!
CONVERSION PLUG ××QAM0055-001 ×
WARRANTY CARD ×××BT-54012-2
TELETEXT
Model name
FASTEXT
HV-34LZ HV-34LZ
QMP40D0-200J5
or
QMP40D0-200J3
○×○○
QMPN050-200-E2
/HK
HV-34LZ
QMPR010-200-E2
QMPR010-200-K2
/-A
or
HV-34LZ
QMP40D0-200J5
/EE
FEATURES
" New chassis design enable us e of an interactive on screen
control.
" The TELETEXT SYSTEM has a built-in FASTEXT (UK system),
and WST (world standard text system).
**** Except HV-34LZ
" Pure FLAT CRT reproduce fine textured.
" Digi Pure pro : Auto digi pure with motion picture compensation.
" Because this TV unit corresponds to multiplex br oadcast, users
can enjoy music progr ams and sporting events with live realism.
In addition, BILINGUAL programs can be heard in their original
language.
/HK
.
" Built-in ECO (ECONOMY, ECOLOGY) MODE.
In accordance with the brightness in a r oom, the brightness
and/or contr ast of the picture can be adjusted automatic ally to
make the optimum pict ure which is easy on the eye.
4
No. 52020
Page 5
SYSTEM BLOCK DIAGRAM
MICON PWB
HV-34LZ
IC004
MEMORY
MAIN PWB
IC661
3D SURROUND
/ VOL / TONE
IC101
MULTI SOUND
PROCESSOR
SDA 0
SCL
MICRO COMPUTER
0
SDA 2
SCL 2
IC001
SDA 1
SCL
1
IC301
DEF & RGB
PROCESSOR
TU001
TUNER
IC101
SW
100Hz PWBAV SW PWB
IC101
VIDEO PROCESS
&
CODEC
IC201
SAMPLE RATE
CONVERTER
IC301
ENHANCE
No. 52020
5
Page 6
HV-34LZ
FUNCTIONS
■■■■ Front Terminal & Control
1 HEADPHONE jack 7 SENSOR(Remote Control & ECO)
2 VIDEO-4 terminal (S-VIDEO / VIDEO / L/MONO / R) 8 CINEMA SURROUND LAMP
3 MENU/OK Button 9 ECO LAMP
4 CHANNEL -/+ (MENU UP/DOWN) Button A POWER LAMP
5 VOLUME -/+ (MENU LEFT/RIGHT) Button B POWER SW Button
6 TV/VIDEO / EXIT Button
■■■■ Rear Terminal
1 VIDEO-1 (INPUT) terminal (S, V, L, R)
2 VIDEO-2 (INPUT) terminal (V, L, R)
3 VIDEO-3 (INPUT) terminal (V/Y, Cb, Cr, L, R)
/ COMPONENT
4 OUTPUT (AUDIO/VIDEO) terminal (V, L, R)
5 AV COMPULINK terminal
6 AERIAL socket
6
No. 52020
Page 7
■■■■ Remote Control Unit
HV-34LZ
RM-C1030 : HV-34LZ, HV-34LZ
2
5
6
7
9
10
11
12
16
17
/-A
,HV-34LZ
13
14
15
18
19
20
/EE
1 POWER Key
2 MUTING Key
1
3
4
8
3 ZOOM Key
4 CINEMA SURROUND Key
5 COLOUR SYSTEM Key
6 SOUND SYSTEM Key
7 DISPLAY Key
8 MENU / OK Key
9 FUNCTION Key ( ▲/▼ & / Key )
A STEREO Ⅰ/ⅡKey
: Stereo / : Mono
Ⅰ : Bilingual (subⅠ)
Ⅱ : Bilingual (subⅡ)
B TV/VIDEO Key
C PICTURE MODE Key
D TV/TEXT Key
E CHANNEL Key
F -/-- Key
G RETURN + Key
H CHANNEL +/- Key
I VOLUME +/- Key
J COLOUR Key
K TELETEXT Key
RM-C1031 : HV-34LZ
2
5
6
7
9
10
11
12
16
17
/HK
14
15
18
19
1 POWER Key
2 MUTING Key
1
3
4
8
3 ZOOM Key
4 CINEMA SURROUND Key
5 COLOUR SYSTEM Key
6 SOUND SYSTEM Key
7 DISPLAY Key
8 MENU / OK Key
9 FUNCTION Key ( ▲/▼ & / Key )
A STEREO Ⅰ/ⅡKey
: Stereo / : Mono
Ⅰ : Bilingual (subⅠ)
Ⅱ : Bilingual (subⅡ)
B TV/VIDEO Key
C PICTURE MODE Key
E CHANNEL Key
F -/-- Key
G RETURN + Key
H CHANNEL +/- Key
I VOLUME +/- Key
J COLOUR Key
No. 52020
7
Page 8
HV-34LZ
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power cord.
2. Remove the 18 screws marked !!!! as shown in the Fig. 1.
3. Withdraw the rear cover toward you.
REMOVING THE AV TERMINAL BOARD
" After removing the rear cover.
1. Remove the 5 screws mar ked """" as shown in the Fig. 1.
2. Withdraw the AV terminal board toward you.
REMOVING THE CHASSIS
" After removing the rear cover.
1. Slightly raise the both sides of the chassis by hand and remove
the 2 claws under the both sides of the chassis from the front
cabinet.
2. Withdraw the chassis backward.
(If necessary, take off the wire clamp, connectors etc.)
REMOVING THE SPEAKER
" After removing the rear cover.
1. Remove the 2 screws marked ####, and remove the speaker
holder as shown in Fig. 1.
NOTE : When removing the screws marked #### of the speaker
holder remove the lower side screw first, and then remove
the upper one.
2. Remove the 4 screws $$$$ attaching the speaker.
3. Follow the same steps when removing the other hand speaker.
CHECKING THE PW BOARD
To check the back side of the PW Board.
1) Pull out the chassis. (Refer to REMOVING THE CHASSIS).
2) Erect the chassis vertic ally s o that you can easily check the
back side of the PW Board.
[CAUTION]
" When erecting the chassis, be careful so that there will be no
contac ting with other PW Boar d.
" Before turning on power, make sure that the wire connector is
properly connected.
" When conducting a check with power supplied, be sure to confirm
that the CRT EARTH WIRE (BRAIDED ASS’Y) is connected to
the CRT SOCKET PW board.
WIRE CLAMPING AND CABLE TYING
1. Be sure to clamp the wire.
2. Never remove the cable tie used for tying the wires together.
Should it be inadvertently removed, be sure to tie the wires with
a new cable tie.
8
No.52020
Page 9
HV-34LZ
SPEAKER
HOLDER
REAR COVER
FRONT CABINET
SPEAKER
C
(×2)
CONTROL
BASE
D
(×4)
FRONT
CONTROL
PWB (R)
MAIN PWB
CRT SOCKET
PWB
CONTROL
BASE
CLAW
FRONT CONTROL
PWB (L)
MICOM
PWB
AV SW PWB
SPEAKER
HOLDER
SPEAKER
CLAW
BLK PW B
100Hz PWB
C
(×2)
D
(×4)
POWER & DEF.
PWB
AV TERMINAL
BOARD
CHASSIS
B
(×5)
Fig. 1
No.52020
POWER CORD
(×18)
A
9
Page 10
HV-34LZ
A
REMOVING THE CRT
∗ R eplacement of the CRT should be performed by 2 or more
persons.
• After removing the cover, chassis etc.,
1. Putting the CRT change table on s oft cloth, the CRT change table
should also be c overed with such soft cloth (shown in Fig.3).
2. W hile keeping the surface of CRT down, mount the TV set on the
CRT change table balanc ed will as shown in Fig.4.
3. Remove 4 screws marked by arrows with a box type screw driver
as shown in Fig.4.
• Since the c abinet will drop when screws have been removed, be
sure to support the cabinet with hands.
4. After 4 screws have been removed, put the cabinet slowly on
cloth (At this time, be carefully so as not to damage the front
surface of the c abinet) shown in Fig.5.
• The CRT should be assembled acc ording to the opposite
sequence of its dismounting steps.
∗ The CRT change table should preferably be smaller that the CRT
surface, and its height be about 35c m. (Fig.3)
∗ About CRT Spacer (Fig.4)
An appropriate CRT spacer should be used in the corresponding
CRT in accordance with the type of the CRT.
When a CRT is replaced, special attention should be paid to this
matter.
CRT CHANGE TABLE
CLOTH
Fig. 3
PPROX.
35cm
COATING OF SILICON GREASE FOR ELECTRICAL
INSULATION ON THE CRT ANODE CAP SECTION.
• Subsequent to replacement of the CRT and HV transformer or
repair of the anode cap, etc. by dismounting them, be sure to
coat silicon grease for electric al insulation as shown in Fig.6.
Wipe around the anode button with clean and dry cloth. (Fig.6)
Coat silicon grease on the section around the anode button. At
this time, take care s o that any silic on greases dose not stick to
the anode button. (Fig.7)
★★★★ Silicon grease product No. KS - 650N
CRT
Anode button
Silicon grease
coating
CABINET
Approx.
20mm (Do not
coat greas e on
this section
Anode button
(N o stic king of
silicon gr ease)
Fig. 4
CRT
CRT
CHANGE TABLE
Fig. 5
Silicon grease
should be coated
by 5mm or more
from the outside
diameter of
anode cap.
Coating position
of silicon grease
Anode c ap
Fig. 6 Fig. 7
10
No. 52020
Page 11
REPLACEMENT OF MEMORY ICs
1. Memory ICs
This TV use memory ICs. In the memory ICs, there are memorized data
for correctly operating the video and deflection circuits. When replacing
memory ICs, be sure to use ICs written with the initial values of data.
HV-34LZ
2. Procedure for replacing memory ICs
(1) Power off
Switch the power off and unplug the power cord fr om the wall outlet.
(2) Replace ICs.
Be sure to use memory ICs written with the initial data values.
1. IF 2. V/C
3. AUDIO 4. DEF
5. VSM PRESET 6. STATUS
7. WB PRESET 8. SHIPPING(OFF)
9. BUS FREE
1-9 : SELECT DISP : EXIT
SERVICE MENU
(3) Power on
Plug the power cord into the wall outlet and switch the power on.
Fig.1
(4) Check and set SYSTEM CONSTANT SET:
****
It must not adjust without signal.
1) Pr ess the DISPLAY key and the PICTURE TUBE key of the REMOTE CONTROL UNIT simultaneously.
2) The SERV ICE MENU screen of Fig. 1 will be displayed.
3) While the SERVICE MENU is displayed, press the DISPLAY key and PICTURE TUBE key simultaneously, and the SYSTEM
CONSTANT SET screen of Fig. 2 will be displayed.
4) Check the setting values of the SYSTEM CONSTANT SET of Table 1. If the value is different, select the setting item with the
FUNCTION ▲/▼ key, and set the c orrect value with the FUNCTION / key.
5) Pr ess the MENU(OK) key to memorize the setting value.
6) Press the IN FORMATION key, and return to the normal screen.
SYSTEM CONSTANT SET
1. TEXT **
SERVICE MENU KEY
OK
+ : STORE DISP : EXIT
Fig.2
2. BLUE BACK MENU
3. E.M.C
4. WHITE BACK
5. COLOUR AUTO
6. PICTURE TILT
**
**
**
**
**
(5) Setting of receive channels
Set the r eceive c hannel.
For setting, refer to the OPERATING INSTRUCTIONS.
(6) Setting of SERVICE MENU
Verify the setting items of the SERVICE MENU of T able 2, and
reset where necessary.
For setting, refer to the SERVICE ADJUSTMENTS.
(7) User settings
Check the user setting values of Table 3, and if setting value is
different , set the corr ect value.
For setting, refer to the OPERATING INSTRUCTIONS.
SERVICE
MENU /
& SYSTEM
CONSTANT
key
ZOOM
(ASPECT )
key
FUNCTION key
(▲/▼ & / key)
MENU / OK key
MEMORY
(STORE) key
SETTING ITEM
SELECT key
(Numbers key)
No. 52020
11
Page 12
HV-34LZ
SETTING VALUES OF SYSTEM CONSTANT SET (TABLE 1)
MODEL No.
Setting item
1. TEXT YES NO YES YES
HV-34LZ HV-34LZ
/HK
HV-34LZ
/-A
HV-34LZ
/EE
2. BLUE BACK MUTE NO
3. E. M. C
4. WHITE BACK
5. COLOUR AUTO
6. PICTURE TILT YES YES
↑↑
↑↑↑ ↑
↑↑
↑↑
NO
YES
↑
SERVICE MENU SETTING ITEMS (TABLE 2)
Setting item Setting value Setting item Setting value
1. IF 1. VCO 4. DEF 1. V-SHIFT
2. V-SIZE
2. V / C
1. RGB BLK
2. WDR R
3. WDR G
4. WDR B
5. BRIGHT
6. CONTRAST
7. COLOUR
8. TINT
9. SHARP
10. VCO ADJ.
11. VID AGC
12. SYC SLI
3. H-CENT
4. H-SIZE
5. TRAPEZ
6. EW-PIN
7. COR-PIN
8. COR-UP
9. COR-LO
10. ANGLE
11. BOW
12. V-S.CR
13. V-LIN
14. V BLK-UP
NO
↑
↑
YES
3. AUDIO
(Do not adjust)
12
1. ERR LIMIT
2. A2 ID THR
3. SYSTEM
4. AI VOLUME
5. SUB TREBLE
6. SUB BASS
5. VSM PRESET
BRIGHT
STANDARD
SOFT
6. STATUS
(Do not adjust)
7. WB PRESET 1. W DR R
No. 52020
1. CONT
2. BRIGHT
3. SHARP
4. COLOUR
5. TINT
1. SOFT
2. TELETEXT
3. ASPECT
2. WDR G
3. WDR B
Page 13
USER SETTING VALUES (TABLE 3)
Setting item Setting value Setting item Setting value
MAIN POWER SW OFF SUB POWER ON
SHIPPING CHANNEL PR1 DISPLAY INDICATED
PRESET CHANNEL
PICT URE SETTING INST ALL
PICTURE MODE BRIGHT LANGUAGE ENGLISH
CONTRAST CENTER EDIT PRESET CHANNEL ONLY
BRIGHT CENTER OTHER : NON (SPACE)
See ; OPERATING
INSTRUCTIONS.
VOLUME LEVEL 10
HV-34LZ
SHARP CENTER AUTO PROGRAM ! GROUP-1
COLOUR CENTER TELETEXT LANGUAGE ! GROUP-2
WHITE BALANCE COOL ! GROUP-3
AI ECO SENSOR DISPLAY OFF ! GROUP-4
(HV-34LZ)
(Unused)
(HV-34LZ
(HV-34LZ
/EE
/-A
PICT URE FEAT URES FEAT URES
DIGITAL VNR AUTO SLEEP TIMER OFF
DIGIPURE AUTO BLUE BACK ON
COLOUR SYSTEM ! TV : Depends on PR/CH AUTO SHUT OFF OFF
! EXT : AUTO
VIDEO-3 SETTING COMPONENT
ZOOM REGULAR – ZOOM – 16:9 CHILD LOCK OFF (f or all the channels)
PICTURE TILT CENTER CHANNEL GUARD ALL CH : OFF
SOUND
BASS
TREBLE
BALANCE
CENTER
CENTER
CENTER
AI VOLUME ON
CINEMA SURROUND OFF
)
)
No. 52020
13
Page 14
HV-34LZ
REPLACEMENT OF CHIP COMPONENT
CAUTIONS
"
1. Avoid heating for more than 3 seconds.
2. Do not rub the electrodes and the resist parts of the pattern.
3. When removing a chip part, melt the solder adequat ely.
4. Do not reuse a chip part after removing it.
SOLDERING IRON
"
1. Use a high insulation soldering iron with a thin pointed end of it.
2. A 30w soldering iron is recommended f or easily removing parts.
REPLACEMENT STEPS
"
1.
How to remove Chip parts
#### Resistors, capacitors, et c
(1) As shown in the figure, push the part with tweezers and
alternately melt the solder at each end.
(2) Shift with tweezers and remove the chip part.
#### Transistors, diodes, variable resistors, etc
(1) Apply extra s older to each lead.
2. How to install Chip parts
#### Resistors, capacitors, et c
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the solder.
Then heat and melt the solder at both ends of the chip part.
#### Transistors, diodes, variable resistors, etc
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the solder.
(3) First solder lead
as indicated in the figure.
A
SOLDER
(2) As shown in the figure, push the part with tweezers and
alternately melt the solder at each lead. Shift and remove the
chip part.
Note : After removing the part, remove remaining solder from the
pattern.
SOLDER
14
No.52020
A
(4) Then solder leads
A
C
and C.
B
C
B
B
Page 15
SERVICE ADJUSTMENTS
BEFORE STARTING SERVICE ADJUSTMENT
1. There are 2 ways of adjusting this TV: One is with the
REMOTE CONTROL UNIT and the other is the conventional
method using adjustment parts and components.
2. The setting (adjustment) using the REM OTE CONTROL
UNIT is made on the basis of the initial setting values. The
setting values which adjust the screen to the optimum
condition can be different from the initial setting values.
3. Make sure that connection is correctly made to AC power
source.
4. Turn on the power of the TV and measuring instrument for
warming up for at least 30 minutes before starting adjustment.
5. If the receive or input signal is not specified, use the most
appropriate signal for adjustment.
6. Never touch parts (such as variable resistors, transformers and
condensers) not shown in the adjustment items of this
service adjustment.
7. Preparation for adjustment (pr esetting) :
Unless otherwise specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT:
! Setting position
PICTURE MODE (VSM) STANDARD
SLEEP TIMER OFF
BALANCE CENTER
ECO OFF
ZOOM REGULAR
HV-34LZ
MEASURING INSTRUMENT AND FIXTURES
1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
3. Signal generator (Pattern generator) [PAL / SECAM / NTSC]
4. Remote control unit
ADJUSTMENT ITEMS
●
Checking items.
Check of B1 Power Supply Adjustment of V-SHIFT
Check of High V oltage Adjustment of V- SIZE
Check of VCO Adjustment of H-CENTER
●
Adjustment of FOCUS &SCREEN. Adjustment of H.SIZE
Adjustment of FOCUS Adjustment of EW-PIN
Adjustment of SCREEN VR Adjustment of TRAPEZ
●
VSM preset setting. Adjustment of CORNER UP/LOW
●
VIDEO / CHROMA circuit adjustment. Adjustment of ANGLE
Adjustment of W HITE BALANCE (High-Light) Adjustment of BOW
Adjustment of SUB BRIGHT Adjustment of V-S.CR & V.LIN.
Adjustment of SUB CONTRAST.
Adjustment of SUB COLOURⅠ
Adjustment of SUB COLOURⅡ
Adjustment of SUB TINT
Adjustment of SUB TINTⅡ
Adjustment of VCO for colour decoder
●
DEFLECTION circuit adjustment.
●
AUDIO circuit adjustment. (Do not adjust)
No. 52020
15
Page 16
HV-34LZ
ADJUSTMENT LOCATIONS
FRONT CONTROL PWB (R)
POWER SW
FRONT
Power co rd
FRONT
AV SW PWB
POWER
F901
PW
S
ECO
C901
CN002
FRONT CONTROL PWB (L)
VOL UP
VOL DOWN
CH DOWN
CH UP
J
3D-PHONIC
LF901
TV/VIDEO EXIT
CDS
W
J
CN002
MAIN PWB POWER&DEF PWB
W DEG
R3
CN00Y
MICON PWB
CN004
CN007
CN005
100Hz PWB
MENU / O K
R4 L4 V4
IN (VIDEO-4)
S IN
F
To AV SW PWB
HEAD
PHONE
FRONT
FRONT
FRONT
F
F. CONT.(L) PWB
YHC
(VR2)
CN001
CRT
XV COIL
CN003
TUNER
S
IN
BLK PWB
C1
CN013
ANT-IN
CRT SOCKET
CN006
CN014
FOCUS-2 VR
VR
HV
HVT
X
1
5
1pin:B1(TP-91)
2pin:NC
3pin:X-RAY
4pin:X-RAY
5pin:GND
PWB
FOCUS1 V R
SCREEN VR
YV
(VR1)
TP-E
CN013
(SOLDER SIDE)
TP-Y
TP-47B
VM
TOP
CN014
VM
16
No. 52020
Page 17
HV-34LZ
BASIC OPERATION SERVICE MENU
1. TOOL OF SERVICE MENU OPERATION
Operate the SERVICE MENU with the REMOTE CONTROL UNIT.
2. SERVICE MENU ITEM S
With the SERVICE MENU, various s ettings (adjustments) can be made, and they are broadly classified in the following items of settings
(adjustments):
(1) 1. IF ･･････････････････････････････ This mode adjusts the setting values of the IF circuit.
(2) 2.V/C･･････････････････････････････ This mode adjusts the setting values of the VIDEO / CHROMA circuit.
(3) 3.AUDIO ･･････････････････････････ This mode adjusts the setting values of the SOUND circuit. (Do not adjust)
(4) 4.DEF ･････････････････････････････ This mode adjusts the setting values of the DEFLECTION circuit for each aspect mode given
below.
ZOOM (ASPECT) V. FREQ.
REGULAR 100Hzi / 60Hzp
ZOOM ↑
16 : 9 ↑
(5) 5.VSM PRESET ････････････････････ This mode adjusts the initial setting values of Bright, Standard & Soft.
(VSM : Video Status Memory)
(6) 6.ST ATUS ･････････････････････････ It is no requir ement to adjustment.
(7) 7.WB PRESET ･････････････････････ This mode adjusts the setting values of the WHITE BALANCE.
(8) 8.SHIPPING(OFF) ･･････････････････ This mode adjusts the setting values of the channel presettings.
If you turn the SHIPPING position set ON.
This setting becomes channel presetting automatic ally.
Also you turn the TV power off, this setting become OFF position automatically.
(9) 9.BUS FREE ･･･････････････････････ It is not requirement to adjustment.
No. 52020
17
Page 18
HV-34LZ
3. BASIC OPERATION OF SERVICE MENU
(1) How to enter SERVICE MENU
Press the PICTURE MODE key and the DISPLAY key of the
REMOTE CONTROL UNIT simultaneous ly, and the SERVICE
MENU screen of Fig. 1 will be displayed.
(2) Selection of SUB MENU SCREEN
Press one of k eys 1～9 of the REMOTE CONTROL UNIT and
select the SERVICE ME NU SCREEN (See Fig. 3), form the
SERVICE MENU.
SERVICE MENU → SUB MENU
1. IF
2. V / C
3. AUDIO (Do not adj.)
4. DEF
5. VSM PRESET
6. STATUS (Do not adj.)
7. WB PRESET
8. SHIPPING (OFF)
9. BUS FREE
(Do not adj.)
(Do not adj.)
SERVICE MENU
SERVICE MENU
1. IF 2. V/C
3. AUDIO 4. DEF
5. VSM PRESET 6. STATUS
7. WB PRESET 8. SHIPPING(OFF)
9. BUS FREE
1-9 : SELECT DISP : EXIT
Fig.1
SERVICE MENU KEY
SERVICE
MENU /
& SYSTEM
CONSTANT
key
Fig.2
ZOOM
(ASPECT )
key
FUNCTION key
(▲/▼ & / key)
MENU / OK key
MEMORY
(STORE) key
SETTING ITEM
SELECT key
(Numbers key)
18
No. 52020
Page 19
SERVICE MENU SCREEN
SUB MENU
SERVICE MENU
SERVICE MENU
1. IF 2. V/C
3. AUDI O 4. DEF
5. VSM PRESET 6. STATU S
7. WB PR ESET 8.SHIPPI NG(OFF)
9.BUS FREE
1-9 : SELECT DISP : EXIT
HV-34LZ
1. V-SHIFT
2. V-SIZE
3. H-CENT
4. H-SIZE
5. TRAPEZ
6. EW-PIN
7. COR-PIN
8. COR-UP
9. COR-LO
10. ANGLE
11. BOW
12. V-S.CR
13. V-LIN
14. V BLK-UP
BRIGHT
STANDARD
SOFT
1. CONT
2. BRIGHT
3. SHARP
4. COLOUR
5. TINT
1. SOFT
2. TELETEXT
3. ASPECT
4. DEF
DEF REGU LAR
1. V-SHIF T
- / + : STORE DISP : EXIT
OK
***
***
******
****
(
****
Hz
5. VSM PRESET
VSM PRESET STD
1.CONT
- / + : STO RE DISP : EXIT
OK
***
6. STATUS (Do not adjust)
STATU S
1.SOFT
1. SOFT
1. IF (CW)
IF SERVICE MENU
1. VCO
)
1-2 : SELECT DI SP : EXIT
***
***....**
*** ***
DISP : EXIT
**
MHz
****
VCO (CW )
TOO HIGH
ABOVE REF
JUST REF
BELOW REF
TOO LOW
2. V/C
V/C
PAL
1. RGB. BLK
OK
- / + : STORE DISP : EXIT
********
****
1. RGB BLK
2. WDR R
3. WDR G
4. WDR B
5. BRIGHT
6. CONTRAST
7. COLOUR
8. TINT
9. SHARP
10. VCO ADJ.
11. VID AGC
12. SYC SLI
1. WDR R
2. WDR G
3. WDR B
OK
- / + : STORE DISP : EXIT
7. WB PRESET
WB PRESET
1. WDR R
OK
- / + : STORE DISP : EXIT
***
***
******
**
No. 52020
3. AUDIO (Do not adjust)
AUDIO
1. ERR LIMIT
ERROR _ RATE =
- / + : STORE DISP : EXIT
OK
***
********
1. ERR LIMIT
2. A2 ID THR
3. SYSTEM
4. AI VOLUME
5. SUB TREBLE
6. SUB BASS
19
Page 20
HV-34LZ
(3) Method of Setting
" Method of Setting 1.IF
[VCO] ･･･････････････････････････ * It must not adjust without signal
① 1 Key･････････････････････････ Select 1.IF.
② 1 Key ････････････････････････ Select 1. VCO (CW)
Check the arrow position between the ABOVE REF. and BELOW REF.
③ DISPLAY(DISP) Key････････････ Return t o the SER VICE MENU screen.
" Method of s etting 2.V/C, 4.DEF, 5.VSM PRESET, 7.WB PRESET.
① 2, 4, 5, 7 Key ･･････････････････ Select one from 2. V/C, 4. DEF, 5. VSM PRESET, 7.WB PRESET.
② FUNCTION ▲/▼ Key･･････････ Select setting items.
③ FUNCTION / Key･･････････ Set (adjust) the s etting values of the setting items.
④ MENU (OK) Key ･･･････････････ Memorize the setting value.
(Before st oring the sett ing valu es in m emory, do not pres s the CH, TV, P OW ER ON / OFF key if you do, the values will not be stored in memory.)
⑤ DISPLAY (DISP) Key ･･･････････ Return to the SERVICE MENU screen.
" 3. AUDIO, 6. STATUS, 8. SHIPPING(OFF) & 9. BUS FREE.
It is not requirement to adjustment.
(4) Release of SERVICE MENU
1) After completing the setting, return t o the SERVICE MENU, then again press the DISPLAY (DISP) key.
20
No. 52020
Page 21
ADJUSTMENT
CHECKING ITEM
HV-34LZ
Item
Check of B1
Power Supply
Check of High
Voltage
Measurin g
instrument
Signal
Generator
DC voltmeter
Remote
Control unit
Signal
Generator
DC volunteer
Remote
Control unit
Test point Adjustment part Description
TP-91(B1)
TP-E(####)
[X connector
on POWER
DEF PWB]
1. RGB BLK 1. Receive any broadcast.
2. Press the ZOOM key and select the FULL mode.
3. Select 2. V/C from the SERVICE MENU.
1. Select 1. RGB BLK with function ▲/▼ key.
5. Press the function key to find the cut off screen (Black
screen).
6. Connect a DC voltmeter to TP-91(B1) and TP-E(#).
7. Make sure that the voltage is DC 139.9 ±2.0V.
8. Press the function key to retur n to service menu.
CRT anode
1. RGB BLK 1. Receive any broadcast.
2. Press the ZOOM key and select the FULL mode.
Chassis GND
3. Select 2. V/C from the SERVICE MENU.
4. Select 1. RGB BLK with function ▲/▼ key.
5. Press the function key to f ind the cut off screen (Black
screen).
6. Connect a DC voltmeter to CRT ANODE and chassis GND.
7. Make sure that the voltage is DC 32.0kV .
8. Press the function key to retur n to service menu.
* Remove the probe before removing the earth clip.
+1kV
-1.5kV
Check of VCO Remote
control unit
IF SERVICE MENU
1. VCO
1-2 : SELECT
VCO(CW)
TOO HIG H
ABOVE REF
JUST REF
BELOW REF
TOO LOW
DISP : EXIT
***, **
MHz
DISP : EXIT
1. VCO
2. ATT ON/OFF
" Under normal conditions, no adjustment is required.
" Confirmation adjustment.
1. Select 1.IF from the SERVICE MENU.
2. Then select 1.VCO from the IF SERVICE MENU.
3. Receive any broadc ast.
4. Check the arrow ( ) position between the ABOVE REF. and
BELOW REF.
5. Press the MENU (OK) key and receive any broadc ast with PIP
Button.
No. 52020
21
Page 22
HV-34LZ
ADJUSTMENT OF FOCUS & SCREEN
Item
Adjustment of
FOCUS
Measurin g
instrument
Signal
generator
12345
Test point Adjustment part Description
FOCUS 1 VR(In HVT)
FOCUS 2 VR
(In CRT SOCKET PWB)
1. Receive a cross-hatch signal.
2. Press the ZOOM key and select the regular mode.
3. B y turning the FOCUS 1 VR, adjust the to make the vertical
lines as fine and sharp as possible.
4. By turning the FOCUS 1 VR, adjust the picture so that the 5th
HVT
vertical line from left side of the cross-hatch pict ure becomes
thinnest.
5. By turning the FOCUS 2 VR(In CRT SOCKET PW B), adjust
the 3rd horizontal line from the upper side may become
FOCUS 1 VR
uniform at the line center and its periphery.
6. Carry out adjustment by repeating the steps 3, 4 and 5 about.
SCREEN VR
7. Make sure that the screen is darkened, the lines remain in
good focus.
CRT SOCKET PWB
(SOLDER SIDE)
FOCUS 1 VRFOCUS 2 VR
1
2
3
TOP
TP-E
FOCUS-2 VR
VR
TP-47B
VM
Adjustment of
SCREEN VR
Signal
generator
V/C
1. RGB _ BLK
- / + : STORE DISP : EXIT
OK
0 0 0 0 0 1 0 0
SERVICE MODE SCREEN
PAL
00
1
SCREEN VR
(In HVT)
CLOW
status
TP-Y
CN014
VM
CN013
1. R eceive a whole black signal .
2. Press the ZOOM key and s elect the regular mode.
3. Select 2. V/C from the SERVICE MENU.
4. Rotate the SCREEN VR (In HVT) clockwise(from 1→0→1)
from the full counterclockwise slowly and stop it at the point
where “CLOW” status (marked in Fig.) changes from 1 to
0 (which is indicated at the 3rd
column from the right.).
* “CLOW” : control loopout of window.
22
No. 52020
Page 23
VSM PRESET SETTING
HV-34LZ
Item
Setting of
VSM PRESET
Measurin g
instrument
Remote
control unit
Setting item
1. CONT.
2. BRIGHT
3. SHARP
Test point Adjustment part Description
1.CONT.
2. BRIGHT
3. SHARP
4. COLOUR
5. TINT
VSM preset mode
BRIGHT STANDARD SOFT
+16 +2 0
-20-2
+5 +2 -10
1. Select 5.VSM PRESET from the SERVICE MENU.
2. Select STD with the PICTURE MODE key of the remote control
unit.
3. Adjust the function ▲ / ▼ and / key to bring the set
val ues of 1.CONT ～ 5. TINT to the values shown in the table.
4. Press the MENU/O K key and memorize the set value.
5. Respectively select the VSM PRESET mode for REGULAR
and BRIGHT, and make similar adjustment as in 3 above.
6. Press the MENU/O K key and memorize the set value.
∗ Refer to OPERATING INSTRUCTIONS for the PICTURE
MODE.
4. COLOUR
5. TINT
+5 0 -2
000
SETTING VALUES OF VSM PRESET
No. 52020
23
Page 24
HV-34LZ
VIDEO/CHROMA CIRCUIT ADJUSTMENT
The setting (adjustment) using the REMOTE CONTROL UNIT is made on the basis of the initial setting values.
The setting values which adjust the screen t o the optimum condition can be different from the initial setting values.
" marked ＊ :Do not adjust
Colour system
Setting item
1.RGB BLK 7.COLOUR
2.WDR R
3.WDR G
4.WDR B
5.BRIGHT
6.CONTRAST
Item
Adju stment
of WHITE
BALANCE
(High-Light)
Measurin g
instrument
Signal
generator
Remote
control unit
＊
Initial setting value Initial setting value
PAL SECAM
000
000
-010
000
000
Test point Adjustment part Description
2.WDR R
3.WDR G
NTSC
Setting item
8.TINT
9.SHARP
10.VCO ADJUSTMENT
11.VID AGC
12.SYC SLI
" Set the PICTURE MODE to COOL.
1. Receive a black and white signal (colour off).
2. Select 2. V/C from the SERVICE MENU.
3. Modify 2. WDR R and 3.W DR G data to adjust the white
balance ( high light ).
4. Press the MENU/OK key and memorize the set value.
5. Change the contrast and brightness with the remote control up
& down from low–light to high–light and check that the tracking
of the white balance is good.
Colour system
PAL SECAM NTSC
000 000 000
＊
+007
Automatically optimized
after adjustment
＊
000
＊
+007
000
Adju stment
of
SUB BRIGHT
Adju stment
Of SUB
CONTRAST.
24
Remote
control unit
Remote
control unit
5.BRIGHT 1. Receive any broadcast.
2. Select 2.V/C from the SERVICE MENU.
3. Select 5.BRIGHT with the function ▲/▼ key.
4. Set the initial setting value with the function / key.
5. If the brightness is not the best with the initial setting value,
make fine adjustment until you get the best brightness.
6. Press the MENU/OK key and memorize the set value.
6.CONTRAST 1. Receive any broadcast.
2. Select 2.V/C from the SERVICE MENU.
3. Select 6.CONTRAST with the function ▲/▼ key.
4. Set the initial setting value with the function / key.
5. If the contrast is not the best with the initial setting value, make
fine adjustment until you get the best contrast.
6. Press the MENU/OK key and memorize the set value.
No. 52020
Page 25
HV-34LZ
Item
Adju stment
of SUB
COLOURⅠⅠⅠⅠ
Measurin g
instrument
Remote
control unit
Test point Adjustment part Description
7.COLOUR
[Method of adjustment without measuring instrument]
(PAL/SECAM/NTSC)
(PAL COLOUR)PAL COLOUR
1. Receive PAL broadcast.
2. Select 2.V/C from the SERVICE MENU.
3. Select 7.COLOUR with the function ▲/▼ key.
4. Set the initial setting value for PAL COLOUR with the function
/ key.
5. If the colour is not the best with the initial set value, make fine
adjustment until you get the best colour.
6. Press the MENU/OK key and memorize the set value.
(SECAM COLOUR)SECAM COLOUR
1. Receive a SECAM br oadcast.
2. Make fine adjustment of S ECAM COLOUR in the same
manner as for above.
NTSC COLOUR
(NTSC 3.58 COLOUR)
1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal from the
EXT terminal.
2. Make similar fine adjustment of NTSC 3.58 COLOUR in the
same manner as for above.
SERVICE
MENU /
& SYSTEM
CONSTANT
key
SERVICE MENU KEY
ZOOM
(ASPECT )
key
FUNCTION key
(▲/▼ & / key)
MENU / OK key
MEMORY
(STORE) key
SETTING ITEM
SELECT key
(Numbers key)
(NTSC 4.43 COLOUR)
1. Receive a NTSC 4.43MHz CO MPOSITE VIDEO signal from
the EXT terminal.
2. Make similar fine adjustment of 4.43 COLOUR in the same
manner as for above.
No. 52020
25
Page 26
HV-34LZ
Item
Adju stment
of SUB
COLOUR ⅡⅡⅡⅡ
W
Measurin g
instrument
Signal
generator
Oscilloscope
Remote
control unit
Cy Mg B
Test point Adjustment part Description
TP-47B
TP-E(####)
[CRT
SOCKET
PWB ]
7.COLOUR
(PAL/SECAM/NTSC)
[Method of adjustment using measuring instrument]
(PAL COLOUR)PAL COLOUR
1. Receive a PAL full field c olour bar signal(75% white).
2. Select 2.V/C from the SERVICE MENU.
3. Select 7.COLOUR with the function ▲/▼ key.
4. Set the initial setting value of PAL COLOUR with the function
/ key.
5. Connect the oscilloscope between TP-47B and TP-E
6. Adjust PAL CO LOUR and bring the value of (A) in the
illustration to 0V (voltage dif ferenc e between white (W) and
cyan (Cy)).
7. Press the MENU/O K key and memorize the setting value.
(SECAM COLOUR)SECAM COLOUR
1. Receive a SECAM full field colour bar signal(75% white).
2. Select 2.V/C from the SERVICE MENU.
3. Select 7.COLOUR with the function ▲/▼ key.
4. Set the initial setting value of SECAM COLOUR with the
function / key.
5. Adjust SEC AM COLOUR and bring the value of (A) of the
illustration to +2V(W ～Cy).
6. Press the MENU/O K key and memorize the setting value.
(NTSC 3.58 COLOUR)
(A)
(-)
0
(+)
NTSC COLOUR
1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the E XT terminal.
2. Select 2.V/C from the SERVICE MENU.
3. Select 7.COLOUR with the function ▲/▼ key.
4. Set the initial setting value of NTSC 3.58 COLOUR with the
function / key.
5. Adjust NTSC 3.58 COLOUR and bring the value of (A) of the
illustration to +10V(W ～Cy).
6. Press the MENU/O K key and memorize the setting value.
26
(NTSC 4.43 COLOUR)
1. Input a NTSC 4.43MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the E XT terminal.
2. Select 2.V/C from the SERVICE MENU.
3. Select 7.COLOUR with the function ▲/▼ key.
4. Set the initial setting value of NTSC 4.43 COLOUR with the
function / key.
5. Adjust NTSC 4.43 COLOUR and bring the value of (A) of the
illustration to +10V(W ～Cy).
6. Press the MENU/O K key and memorize the setting value.
No. 52020
Page 27
HV-34LZ
Item
Adju stment
of
SUB TINT
Adju stment
of
SUB TINTⅡⅡⅡⅡ
W
Measurin g
instrument
Remote
control unit
Signal
generator
Oscilloscope
Remote
control unit
Cy Mg B
Test point Adjustment part Description
8.TINT [Method of adjustment without measuring instrument]
(NTSC 3.58 TINT)NTSC 3.58 TINT
1. Input a NT SC 3.58MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the E XT terminal.
2. Select 2.V/C from the SERVICE MENU.
3. Select 8.TINT with the function ▲/▼ key.
4. Set the initial setting value of NTSC 3.58 TINT with the function
/ key.
5. If you cannot get the best TINT with the initial s etting value,
make fine adjustment until you get the best TINT.
6. Press the MENU/O K key and memorize the set value.
NTSC 4.43 TINT
(NTSC 4.43 TINT)
1. W hen NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
TP-47B
TP-E(####)
[CRT
SOCKET
PWB]
8.TINT [Method of adjustment using measuring instrument]
(NTSC 3.58 TINT)NTSC 3.58 TINT
1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the E XT terminal.
2. Select 2.V/C from the SERVICE MENU.
3. Select 8.TINT with the function ▲/▼ key.
4. Set the initial setting value of NTSC 3.58 TINT with the function
/ key.
5. Connect the oscilloscope between TP-47B and TP-E
6. Adjust NTSC 3.58 TINT to bring the value of (B) in the
illustration to -10V (voltage difference between white (W) and
magenta(Mg)).
7. Press the MENU/OK key and memorize the setting value
(B)
(+)
(-)
0
NTSC 4.43 TINT
(NTSC 4.43 TINT)
1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
Adju stment
of VCO
for colour
decoder
Signal
generator
Remote
control unit
10. VCO
No. 52020
1. Input a PAL full field colour bar signal (75% white) from EXT
terminal.
2. Select 2. V/C from the SERVICE MENU.
3. Then Select 10. VCO adjustment with the function ▲/▼ key.
4. Press the MENU/OK key.
* When the MENU/OK key is pressed, VCO for colour decoder
will be automatically set at the respective values.
27
Page 28
HV-34LZ
DEF. CIRCUIT ADJUSTMENT
There are 3 aspect modes ( ①①①①REGULAR, ②②②②ZOOM & ③③③③16 : 9) of the adjustment ( 1 ) 100Hz i mode & ( 2 ) 60Hz p mode ･･････
depending upon the kind of signals ( vertical frequency 100Hzi / 60Hzp ).
" When the 100Hz REGULAR mode has been established, the setting of other modes will be done automatically.
However, if the picture quality has not been optimized, adjust each mode again, respectiv ely.
" The adjustment using the remote control unit is made on the basis of the initial setting values.
" The setting values which adjust the screen to the o ptimum condition can be different from the initial setting values.
Initial setting value
REGULAR ZOOM 16 : 9
Setting item
1. V- SHIFT -3 +8 0 0 0 0
2. V-SIZE +5 0 0 0 -15 0
3. H-CENT -11 +3 0 0 0 0
100Hz i 60Hz p 100Hz i 60Hz p 100Hz i
60Hz p
･･････
････････････
4. H-SIZE -11 -5 0 0 -3 +3
5. TRAPEZ -16 +17 0 0 0 0
6. EW-PIN -36 0 0 0 0 0
7. COR-PIN 0 0 0 0 0 0
8. COR-UP 0 0 0 0 0 0
9. COR-LO 0 0 0 0 0 0
10. ANGLE 0 0 0 0 0 0
11. BOW 0 0 0 0 0 0
12. V-S.CR +5 0 0 0 0 0
13. V-LIN -6 +4 0 0 0 0
14. V.BLK-UP 80 0 0 0 -82 -6
FIXED VALUE
: Do not move.
28
No. 52020
Page 29
HV-34LZ
Item
Adju stment
of
V-SHIFT
Adju stment
of V-SIZE
Screen
size
Measurin g
instrument
Signal
generator
Remote
control unit
Test point Adjustment part Description
1. V- SHIFT [REGULAR mode]
1. Receive a circle pattern signal of vertical frequency 50Hz.
2. Select 4.DEF from the SERVICE MENU.
3. Select 1.V-SHIFT with the function ▲/▼ key.
4. Adjust V-SHIFT to make A = B.
5. Check the adjustment value above in other zoom mode.
If it is a wrong adjustment, re- adjust in ZOOM mode and
adjust by 1. V-SHIFT and 13.V-LIN.
A
B
2.V-SIZ E 7. Receive a cross-hatch signal.
Screen size
Picture
size
100%
6. Press the MENU/OK key and memorize the set value.
8. Select 2.V-SIZE and set the initial setting value.
9. Adjust V-SIZE and make sure that the vertical screen size of
the picture size is in the bellow table.
10. Press the MENU/OK key and memorize the set value.
11. Input a NTSC VIDEO signal (60Hz) from the EXT terminal,
and make sure that the vertical scr een size is in the below
table.
12. Press the MENU/OK key and memorize the set value.
Picture size 100%
ASPECT
SCREEN
POSITION
TOP
BOTTOM 93%
No. 52020
ZOOM
REGULAR ZOOM
93%
[ SCREEN SIZE ]
(FIXED) (FIXED)
(FIXED) (FIXED)
16 : 9
29
Page 30
HV-34LZ
Item
Adjustment of
H. CE NTER
Adju stment
of
H.SIZE
Measurin g
instrument
Signal
generator
Remote
control unit
CD
Test point Adjustment part Description
3.H-CENT . 13. Receive a circle pattern signal.
4.H-SIZE 17. Receive a cross-hatch signal.
14. Select 3.H-CENT and s et the initial s etting value.
15. Adjust H-CENT to make C=D.
16. Pr ess the MENU/OK key and memorize the set value.
18. Select 4.H-SIZE and set the initial s etting value.
19. Adjust H-SIZE and make sure that the horizontal screen size
of the picture size is in the bellow table.
20. Pr ess the MENU/OK key and memorize the set value.
21. Input a NTSC VIDEO signal (60Hz) from the EXT terminal, and
make sur e that the horizontal screen size is in the below table.
22. Pr ess the MENU/OK key and memorize the set value.
Adjustment of
EW-PIN
Straight
ASPECT
MODE
ADJ. ITEM
H-SIZE 92%
6.EW-PIN 23. Select 6.EW-PIN and set the initial setting value
REGULAR ZOOM 16 : 9
24. Adjust EW-PIN and make the 2nd.vertical lines at the left and
right edges of the screen straight. Als o make sure that the 3rd
vertical lines are straight.
25. Pr ess the MENU/OK key and memorize the set value.
ZOOM
(FIXED) (FIXED)
30
No. 52020
Page 31
HV-34LZ
Item
Adju stment
of TRAPEZ
Adjustment of
CORNER
UP/ LOW
Measurin g
instrument
Signal
generator
Remote
control unit
Signal
generator
Remote
control unit
Test point Adjustment part Description
5.TRAPEZ 26. Receive a cross-hatch signal.
27. Select 5.TRAPEZ with the function ▲/▼ key.
28. Set the initial setting value of TRAPEZ with the function
/ key.
Parallel
7.COR-PIN
8.COR-UP
9.COR-LO
Straight
29. Adjust TRAPEZ and bring the VERTICAL lines at the right and
left edges of the screen parallel .
30. Pr ess the MENU/OK key and memorize the set value.
31. Select 9.COR-LO with the function ▲/▼ key.
32. Set the initial setting value of 9.COR-LO with the function
/ key.
33. Adjust COR-LO, and bring the straight line at the low corner.
34. Select 8.COR-UP with the function ▲/▼ key.
35. Set the initial setting value of 8.COR-UP with the function
/ key.
36. Adjust COR-UP, and bring the straight line at the upper
corner.
37. If the extreme upper & lower corners and a little pin or barrel,
chose 7.COR-PIN and adjust. And adjust to get the straight.
38. Press the MENU/OK key and store the set value.
Adjustment of
ANGLE
Signal
generator
Remote
control unit
10.ANGLE
Fig. A
No. 52020
" In case where there is a parallelogrammic al distortion of
images on the screen. (Fig. A)
39. Select 10.ANGLE with the function ▲/▼ key.
40. Adjust ANGLE, and bring the VERTICAL lines straight.
41. Pr ess the MENU key and memorize the set value.
31
Page 32
HV-34LZ
Item
Adju stment
of BOW
Measurin g
instrument
Signal
generator
Remote
control unit
Test point Adjustment part Description
11.BOW
" In case where there is a bow-shaped distortion of images on
the screen. (Fig.B)
42. Select 11.BOW with the function ▲/▼ key.
43. Adjust BOW, and bring the VERTICAL lines str aight.
44. Pr ess the MENU/OK key and memorize the set value.
Fig. B
Adju stment
of V-S.CR &
V.LINE
12.V-S.CR
13.V-LIN
TOP
CENTER
BOTTOM
" W hen the vertical linearity has been deteriorated remarkably,
perform the following steps.
45. Receive a cross- hatch signal.
46. Select 13. V-LIN with the function ▲/▼ key.
47. Set the initial setting value of 13. V-LIN with the function
/ key.
48. Select 12. V-S.CR. with the function ▲/▼ key.
49. Set the initial setting value of 12. V-S.CR. with the function
/ key.
50. Adjust 13. V-LIN and 12. V-S.CR . so that the spaces of each
line on TOP, CENTER, and BOTTOM become uniform.
NOTE : Do not adjust “ZOOM” & “16 : 9” mode.
* At first the adjustment in 50Hz REGULAR mode should be
done, then the data for the other ZOOM mode is corrected in
the respective value at the same time. And c onfirm the
deflection adjustment initial s etting value in 60H z (NTSC EXT
mode) REGULAR mode.
If the adjustment in 50Hz REGULAR mode has been done and
stored, the data f or the other ZOOM modes is c orrected in the
same value at the same time.
* Only the data for the other ZOOM mode in 60Hz is corrected
for it self.
32
No. 52020
Page 33
AUDIO CIRCUIT ADJUSTMENT
" Do not touch 3. AUDIO adjustment of the SERVICE MENU as it requires no adjustment.
If values had changed f or the some reason, s et the initial values in the following table.
3. AUDIO(Do not adj ust)
Setting item Variable range fixed value
1. ERR LIMIT 00H～FFH 10H
HV-34LZ
2. A2 ID THR
3. SYSTEM
4. AI VOLUME
5. SUB TREBLE
6. SUB BASS
00H～FFH
――――
00～03
-03～03
-03～03
19H
B/G
00
00
00
No. 52020
33
Page 34
HV-34LZ
PURITY, CONVERGENCE ADJUSTMENT
PURITY ADJUSTMENT
1. Demagnetize CRT with the demagnetizer.
2. Loosen the retainer screw of the deflection yoke.
3. Remove the wedges.
4. Input a green raster signal from the signal generator, and turn
the screen to green raster.
5. Move the deflection yok e backward.
6. Bring the long lug of the purity magnets on the short lug and
position them horizontally. (Fig.2)
7. Adjust the gap between two lugs so that the GREEN RASTER
will come into the cent er of the screen. (Fig.3)
8. Move the deflection yoke forward, and fix the position of the
deflection yoke so that the whole screen will become green.
9. Insert the wedge to the top side of the deflection yoke so that it
will not move.
WEDGE
CRT
DEF. YOKE
P : PURITY MAGNET
4 : 4 POLES
6 : 6 POLES
DYNAMIC CONVERGENCE ADJUSTMENT
PURITY MAGNET(P)
46
P / C MAGNETS
CRT SOCKET PWB
P/C MAG NET S
(convergence magnets)
(convergence magnets)
Fig.1
PURITY MAGNETS
10. Input a crosshatch signal.
11. Verify that the screen is horizontal.
12. Input red and blue raster signals, and make sure that pur ity is
properly adjusted.
Short lug
Bring the long lug over the short lug
and position them horizontally.
Fig.2
(FRONT VIEW)
CENTER
Fig.3
Long lug
GREEN RASTER
34
No.52020
Page 35
HV-34LZ
STATIC CONVERGENCE ADJUSTMENT
1. Input a crosshatch signal.
2. Using 4-pole convergence magnets, overlap the red and blue
lines in the center of the screen (Fig.1) and turn them to
magenta (red/blue).
3. Using 6-pole convergence magnets, overlap the magenta
(red/blue) and green lines in the center of the screen and turn
them to white.
4. Repeat 2 and 3 above, and make best convergence.
After adjustment, fix the wedge at the original position.
●
Fast en the r etainer screw of the deflection yoke.
Fix the 6 magnets with glue.
DYNAMIC (periphery) CONVERGENCE
ADJUSTMENT
After adjusting purity & static conv ergence.
1. Move the deflection yoke up and down to adjust the pin cushion
distortion in the screen top and bottom. (See Fig. 2)
2. Move the deflection yoke left to right to overlap the lines in the
periphery, and match the Yv(VR1).(As shown in Fig. 4)
(FRONT VIEW)
(FRONT VIEW)
(FRONT VIEW)
BLUE
GREEN
RED
RED
Fig. 1
TOP
BOTTO M
Fig. 2
YH
GREEN
BLUE
RED
GREEN
BLUE
3. Using the VR1 on the deflection yoke, match the Y
(CROSS).
H
(See Fig. 3 and 6)
4. Using the VR2 on the deflection yoke, match the Y
(BOW).
H
(See Fig. 3 and 6)
5. Repeat the steps 1 and 4 and obtain an optimum convergence.
6. Differential(XV) coil ADJUSTMENT.
In case where the horizontal lines of red and blue around the
center of both sides of the picture as shown in Fig. 5, adjust the
X
differenc e by using the dif ferential coil( XV coil) on the top of
V
the deflection yoke (Fig. 6) s o as to minimize the X
difference.
V
CRT
XV COIL
YV
FRONT
YHC
(VR2)
(VR1)
(FRONT VIEW)
GREEN
RED
BLUE
(FRONT VIEW)
BLUE(RED)
v
X
RED(BLUE)
BLUE
GREEN
YH
Fig. 3
YV
YV
Fig. 4
RED
BLUE
GREEN
RED
RED
GREEN
BLUE
BLUE
GREEN
RED
GREEN
Fig.6
No.52020
Fig. 5
35
Page 36
HV-34LZ
36
No.52020
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