COPYRIGHT © 2004 Victor Company of Japan, Limited.
REAR PROJECTION TELEVISION
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
VCR / DVD
STILL / PHASE
OPEN / CLOSE
Design & specifications are subject to change without notice.
Dimensions (W x H x D)
126.4cm x 91.4cm x 41.2cm
(49-7/8" x 36 x 16-1/4")
145.3cm x 104.2cm x 47cm
(57-1/4" x 41 x 18-1/2")
TV RF System
BTSC (Multi Channel Sound)
Closed Caption (T1-T4 / CC1-CC4)
Low Band : 02~06 by 02~06
High Band : 07~13 by 07~13
Mid Band : A~I by 14~22
Super Band : J~W by 23~36
Hyper Band : W+1~W+28 by 37~64
Ultra Band : W+29~W+84 by 65~94, 100~125
Sub Mid Band : A-8, A-4~A-1 by 01, 96~99
TV / CATV Total Channel
Color Sub Carrier
110W High-pressure mercury lamp
HD-ILA device [H:1,312 x V:800 x 3(R/G/B)]
Transparent screen (unitized fresnel lens / lenticular lens)
52" (132cm) Measured diagonally
61" (155cm) Measured diagonally
10cm round x 2 (Oblique corn)
Audio Power Output
Antenna Terminal (VHF/UHF)
unbalanced, coaxial, F-type connector x 1
Video / Audio (within center CH Input)
1V (p-p), 75
, negative sync (RCA pin jack x 4)
500mV(rms) (-4dBs), high impedance (RCA pin jack x 9)
Mini-DIN 4pin connector x 3
Y: 1V (p-p) positive, 75
negative sync provided
C: 0.286V(p-p) (burst signal)
Y: 1V (p-p), 75
(RCA pin jack x 2)
Pb: ±0.35V, 75
(RCA pin jack x 2)
Pr: ±0.35V, 75
(RCA pin jack x 2)
1080i DTV (digital broadcast) ready
HDMI connector x 1
(This Digital-in terminal is not compatible with picture signals of personal computer.)
Digital : HDMI connector
Analog : 500mV(rms) (-4dBs), high impedance (RCA pin jack x 2)
Audio Output (VARI/FIX)
VARI : More than 0 to 1000mV (rms) (+2.2dBs)
FIX : 500mV(rms) (-4dBs), low impedance (1kHz when modulated 100%)
(RCA pin jack x 2)
Sub woofer Output
More than 0 to 1000mV (rms) (+2.2dBs) (RCA pin jack x1)
AV Compulink lll
3.5mm mini jack
Remote Control Unit
RM-C15G (AA/R6/UM-3 battery x 2)
1.1 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 that 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) Use isolation transformer when hot chassis.
The chassis and any sub-chassis contained in some products are
connected to one side of the AC power line. An isolation transformer
of adequate capacity should be inserted between the product and the
AC power supply point while performing any service on some
products when the HOT chassis is exposed.
(5) 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
ISOLATED(NEUTRAL) side GND or EARTH side GND at the same
If above note will not be kept, a fuse or any parts will be broken.
(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
(7) 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).
(8) 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
2W resistor to the anode button.
(9) 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.
(10) 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.
a) 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 1100V 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 test equipment not generally
found in the service trade.
b) 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
per volt or more sensitivity in the
following manner. Connect a 1500
10W resistor paralleled
by a 0.15µF 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.).
(11) High voltage hold down circuit check.
After repair of the high voltage hold down circuit, this circuit shall be
checked to operate correctly.
See item "How to check the high voltage hold down circuit".
(HAVING 1000 /V,
OR MORE SENSITIVITY)
PLACE THIS PROBE
ON EACH EXPOSED
0.15 F AC-TYPE
GOOD EARTH GROUND
White line side
Connecting the white line side of power
cord to "WHT" character side.
This mark shows a fast
operating fuse, the
letters indicated below
show the rating.
1.2.1 HEAT DISSIPATION
If the heat dissipation vent behind this unit is blocked, cooling
efficiency may deteriorate and temperature inside the unit will
rise. The temperature sensor that protects the unit will be
activated when internal temperature exceeds the predetermined
level and power will be turned off automatically.
Therefore, please make sure pay attention not to block the heat
dissipation vent as well as the ventilation outlet behind the unit
and ensure that there is room for ventilation around it.
Do not put foreign objects near the ventilation holes as
this can result in fire or electrical hazards.
Do not block the ventilation holes as this may cause the
internal temperature to rise and possibly result fire.
1.2.2 INSTALLATION REQUIREMENTS
Ensure that the minimal distance is maintained, as specified
below, between the unit with and the surrounding walls, as well
as the floor etc.
Install the unit on stable flooring.
Take precautionary measures to prevent the unit from tipping in
order to protect against accidents and earthquakes.
Caution for installation
· Do not tilt the TV towards the left or right, or toward the back.
· Install the TV in a corner on the floor so as to keep cords out
of the way.
· The TV will generate a slight amount of heat during operation.
Ensure that sufficient space is available around the TV to
allow satisfactory cooling.
1.3 LAMP UNIT HANDLING CAUTION
1.3.1 PRECAUTION FOR LAMP UNIT
light. Do not look directly at the light during service.
Also, do not touch the lamp directly as it presents a burn
Handle with extra care. This lamp emits high heat and
contains high-pressure during use.
Do not give any impact as this may cause the broken
1.3.2 PRECAUTION FOR REPLACEMENT
Do not replace the light-source lamp immediately after the
projector has been used.
The temperature of the light-source lamp is still high and
could cause a burn.
Allow a cooling period of one hour or more before performing
Before starting light-source lamp replacement work, turn off
the MAIN POWER switch, and disconnect the power cord
from the wall outlet.
If touched, the lamp glass surface may rupture and burns
Do not touch the glass portion or metal portion. Handle only
1.3.3 LAMP TIMER RESET
Refer to the [LAMP REPLACEMENT INSTRUCTIONS] for a
detailed operating discription.
Use the lamp timer reset only
after replacing the lamp.
How to reset Lamp timer
1. Press the MENU key on the remote controller.
2. Select the [LAMP TIMER RESET] with [ /
3. Enter the [LAMP TIMER RESET] mode the message will
4. Press the [OK] key while the above message appears on the
5. The [LAMP TIMER] has now been reset.
LAMP NEEDS TO BE REPLACED.
REFER TO OWNER'S MANUAL FOR
AFTER REPLACING THE LAMP,
PLEASE RESET TIMER IN THE TV
PRESS OK, IF YOU DO NOT WAN
TO SEE THIS MESSAGE AGAIN.
If this message appears when turn the TV
on, need to replace the lamp.
This message will appear every time turn
on the TV when the lamp needs to be
replaced. Press the OK button to make the
message disappear, or replace the lamp.
1.4 SCREEN HANDLING CAUTIONS
1.4.1 SCREEN STORAGE
Store the SCREEN ASS'Y in a standing position in order to avoid deformation. If the screen is stored horizontally, there is risk of
deforming the screen face.
When necessary to place the SCREEN ASS'Y horizontally, position the screen side upwards and sure to place spacers between the
screen and resting site (floor or stand etc.) to prevent the screen from sagging.
1.4.2 SCREEN SURFACE
Since the screen surface is easily scratched or soiled, use ample care when handling.
1.4.3 PRECAUTIONS FOR CLEANING AND REPLACEMENT
The screen assembly is made from the lenticular lens and fresnel lens.
The anti static proceeding and the AR coating cover the surface of the lenticular lens.
Rubbing the surface with something hard, the coating may peel off.
When the screen is dirty, gently wipe it with a soft cloth.
If the screen is very dirty, wipe it down with a cloth dipped in a diluted kitchen cleaner (neutrality detergent) and thoroughly wrung-out.
Then wipe immediately after with clean, dry cloth.
Never use the organic solvent such as the alcohol or benzine.
The screen assembly replacement is required if the coating was peel off.
Alkaline detergent or acidity detergent can not be be used.
The notched side of the lenticular lens and the fresnel lens are faced each other.
Do not rub the screen when cleaning it or replaceing it.
Rubbing the screen may cause of the scratch of the screen by its notch.
1.5 SERVICE PARTS KIT INSTRUCTIONS
Due to the character of this product, these 3 parts kits
Please note these matters when replacing or ordering
1.5.1 PART NUMBER AND CONSTRUCTION
OPTICAL / DRIVE ASS'Y CONSTRUCTION
· OPTICAL BLOCK
(Included HD-ILA DEVICE, PROJECTION LENS)
· MAIN DRIVE PWB ASS'Y
PRECAUTION FOR USING
1) When it is required to replace one of these, replace this kit.
Replace all components of this kit.
: HD-ILA device, optical block MAIN DRIVE PWB ASS'Y.
The memory IC stored adjustment data.
So it is required to replace all parts together.
2) When replace the MAIN DRIVE PWB ASS'Y, take off the
memory IC from the original board and replace with new one.
When replace the MAIN DRIVE PWB ASS'Y, do same
manner. Replace memory IC.
3) After the replacement of the Optical block, objective lens
focus adjustment is required.
Leave the screen with protector,
fresnel lens and lenticular lens attached.
If cannot be disassembled further.
If the screen or screen panel need to
be replaced, remove the 20 (52 inch) /
24(61 inch) screws A .
(x 20) [52 inch]
(x 24) [61 inch]
OPTICAL / DRIVE ASS'Y