JVC HV-L29PRO User manual

No.51828
HV-L29PRO
1COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
A
ug. 2001
HV-L29PRO
HV-L29PRO/HK
HV-L29PRO/-A
HV-L29PRO/AU
HV-L29PRO/EE
CONTENTS
!SPECIFICATIONS ････････････････････
････････････････････････････････････････
････････････････････ 2
!SAFETY PRECAUTIONS ･･････････････
････････････････････････････
･･････････････ 3
!MAIN DIFFERENCE LIST ･･････････････
････････････････････････････
･･････････････ 4
!FEATURES･･････････････････････････
････････････････････････････････････････････････････
･･････････････････････････ 4
!FUNCTIONS･････････････････････････
･･････････････････････････････････････････････････
･････････････････････････ 6
!SPECIFIC SERVICE INSTRUCTIONS････
････････
････ 8
!SERVICE ADJUSTMENTS････････････
････････････････････････
････････････ 14
!PARTS LIST ･･･････････････････････
･･････････････････････････････････････････････
･･･････････････････････ 37
★OPERATING INSTRUCTIONS
★STANDARD CIRCUIT DIAGRAM･･･････
･･････････････
･･･････ 2-1
SERVICE MANUAL
COLOUR TELEVISION
BASIC CHASSIS
MF
MC-Service

No.51828
HV-L29PRO
2
SPECIFICATIONS
Item Content
Dimensions ( W×
××
×H×
××
×D ) 73.2cm×58.8cm×51.8cm
Mass 48.0kg
TV RF System B/G, I, D/K, K1, M
Colour System PAL / SECAM / NTSC 3.58 / NTSC 4.43
Stereo System A2 (B/G) / NICAM (B/G, I, D/K, K1)
Teletext System Fastext (UK system) *[
*Without TEXT mode : HV-L29PRO/HK ]
WST(world standard Texst)
VL 46.25MHz ～168.25MHz
VH 175.25MHz ～463.25MHz
Receiving
Frequency UHF
CATV 471.25MHz ～863.25MHz
Mid (X～Z+2, S1～S10), Super (S11～S20) & Hyper (S21～S41)
VIF 38.0MHz
Intermediate
Frequency 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
Colour Sub Carrier
Frequency NTSC 3.58MHz / 4.43MHz
Power Input AC 110V～240V , 50/60Hz
Power Consumption Max 254W / Avg. 170W
Aerial Input Term 75Ωunbalanced, Coaxial
Picture Tube 29”(68cm) measured diagonally
High Voltage 31.5kV (At zero beam current )
Audio Power Output 20W + 20W
Speaker φ10cm Round type×2 / φ3.5cm Round type×2
Video 1Vp-p 75Ω
Audio(L/R) 500mVrms(-4dBs), High Impedance
Input
Terminal S / Video Y : 1V(p-p) Positive (Negative sync provided) 75Ω
C : 0.286V(p-p) (burst signal), 75Ω
Component Cb/Cr Y : 1V(p-p), 75Ω
Cb : B-Y 0.7V(p-p), 75Ω/ Cr : R-Y 0.7V(p-p), 75Ω
Output Video 1V(p-p) 75Ω
Terminal Audio(L/R) 500mVrms(-4dBs), Low Impedance
AV Compulink Mono mini jack (φ3.5mm )
Headphone jack Stereo mini jack (φ3.5mm )
Remote Control Unit RM-C214 (AA/R06 / UM-3 , Dry cell battery×2)
: HV-L29PRO / HV-L29PRO/-A / HV-L29PRO/AU & HV-L29PRO/EE
RM-C215 (AA/R06 / UM-3 , Dry cell battery×2) : HV-L29PRO/HK
Design & specifications are subject to change without notice.
+1.0kV
-1.5kV

No.51828
HV-L29PRO
3
SAFETY PRECAUTIONS
1. The design of this product contains 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 identical 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 injury or property damage resulting
therefrom.
3. Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteristics are
often not evident from visual inspection nor can 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 same 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
difference 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 measure 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 increase 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 determine the cause by visual inspection
(incorrect installation, cracked 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 manufacturer 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 10k!2W resistor to the anode button.
8. When service is required, observe the original lead dress. Extra
precaution should be given to assure correct lead dress in the
high voltage circuit area. Where a short circuit has occurred,
those components that indicate evidence of overheating should
be replaced. Always use the manufacturer's replacement
components.
9. Isolation Check
(Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an isolation
check on the exposed metal parts of the cabinet (antenna
terminals, video/audio input and output terminals, Control knobs,
metal cabinet, screwheads, earphone jack, control shafts, etc.)
to be sure the product is safe to operate without danger of
electrical shock.
(1) Dielectric Strength Test
The isolation between the AC primary circuit and all metal parts
exposed to the user, particularly any exposed 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 appliance
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 generally found
in the service trade.
(2) Leakage Current Check
Plug the AC line cord directly into the AC outlet (do not use a line
isolation transformer during this check.). Using a "Leakage
Current Tester", 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 current must not exceed
0.5mA AC (r.m.s.).
However, in tropical 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 1500!10W resistor paralleled by a 0.15"F
AC-type capacitor between an exposed 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 measured
must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA
AC (r.m.s.).
However, in tropical area, this must not exceed 0.3V AC (r.m.s.).
This corresponds to 0.2mA AC (r.m.s.).
0.15
μ
F AC-TYPE
1500
!
10W
GOOD EARTH GROUND
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
AC VOLTMETER
(HAVING 1000
!
/V,
OR MORE SENSITIVITY)

No. 51828
HV-L29PRO
4
MAIN DIFFERENCE PART LIST
!
!!
!Model name
Part name HV-L29PRO HV-L29PRO/HK HV-L29PRO/-A HV-L29PRO/AU HV-L29PRO/EE
MICON PWB SMF0M601A-H2 SMF0M602A-H2 SMF0M603A-H2 SMF0M601A-H2 SMF0M604A-H2
!POWER CORD QMP40D0-200J5 QMPN050-200-E2 QMPR010-200-E2 QMP2980-185J5 QMP40D0-200J5
!RATING LABEL LC20377-001B-H LC20377-012B-H LC20413-002B-H LC20377-013B-H LC20377-009B-H
!REMOTE CONTROL UNIT RM-C214-1C RM-C215-1C RM-C214-1C
!DIGEST MANUAL ××
LCT0957-001A-H ××
!CONVERSION PLUG ××
QAM0055-001 ××
WARRANTY CARD ×××
BT-56001-2 BT-54012-2
S CENTER LIST ×××
BT-56002-2 ×
FEATURES
"New chassis design enable use of an interactive on screen
control.
"The TELETEXT SYSTEM has a built-in FASTEXT (UK system),
and WST (world standard system) system.
*Except HV-L29PRO/HK.
"Pure FLAT CRT reproduce fine textured.
"Digi Pure pro : Auto digi pure with motion picture compensation.
"Because this TV unit corresponds to multiplex broadcast, users
can enjoy music programs and sporting events with live realism.
In addition, BILINGUAL programs can be heard in their original
language.
"Built-in ECO (ECONOMY, ECOLOGY) MODE.
In accordance with the brightness in a room, the brightness
and/or contrast of the picture can be adjusted automatically to
make the optimum picture which is easy on the eye.
MC-Service

No. 51828
HV-L29PRO
5
SYSTEM BLOCK DIAGRAM
IC001
MICRO COMPUTER
SDA 0
SCL
0
IC004
MEMORY
IC301
DEF & RGB
PROCESSOR
TU001
TUNER
IC101
VIDEO PROCESS
&
CODEC MAIN
IC151
VIDEO PROCESS
&
CODEC SUB
IC201
SAMPLE RATE
CONVERTER
IC301
ENHANCE
IC701
BBE CONTROL
IC101
MULTI SOUND
PROCESSOR
IC301
SYNC SEP PWB
IC101
SW
TU001
TUNER
MAIN PWB
SDA 1
SCL
1
SDA 2
SCL 2
SYNC SEP PWB 100Hz PWB
AV SW PWB
MICON PWB