COPYRIGHT © 2004 Victor Company of Japan, Limited
REAR PROJECTION TELEVISION
TABLE OF CONTENTS
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58
Design & specifications are subject to change without notice.
× H × D)
× 124cm × 60.8cm
× 49" × 24")
× 138.6cm × 66.7cm
× 54-5/8" × 26-3/8")
82 kg ( 181 lbs )
93.2 kg ( 205.7 lbs )
TV RF System
BTSC system (Multi Channel Sound)
Closed caption (T1-T4 / CC1-CC4)
02ch~06ch : 54MHz~88MHz
07ch~13ch : 174MHz~216MHz
14ch~69ch : 470MHz~806MHz
Low Band : 02~06
High Band : 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+58, W+59~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
AC 120V, 60Hz
Transparent screen (unitized fresnel lens / double lenticular lens)
48" (122cm) Measured diagonally
16:9 ratio (W:106.3 cm, H:59.8 cm)
56" (142cm) Measured diagonally
16:9 ratio (W:124 cm, H:69.8 cm)
17cm (6.7") tube
× 3 ( R/G/B )
31kV+1.0kV/-1.3kV (at zero beam current)
13cm round type
Audio Power Output
unbalanced, F-type connector × 1
RCA pin jack
Y : 1V (p-p) (Sync signal: ±0.35V, 3-value sync.), 75
Pb/Pr : ±0.35V, 75
Y : 1V (p-p) Positive (Negative sync provided), 75
Pb/Pr : 0.7V, 75
Y: 1V (p-p) positive (negative sync provided), 75
C: 0.286V(p-p) (burst signal)
1V (p-p) positive (negative sync provided), 75
(RCA pin jack × 4)
500mV(rms) (-4dBs), high impedance (RCA pin jack
Audio Output (FIX)
500mV(rms) (-4dBs), low impedance (1kHz when modulated 100%)
(RCA pin jack
AV Compulink lll
3.5mm mini jack
Remote Control Unit
RM-C1257G (AA/R6/UM-3 battery
(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
(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) 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 (NEU-
TRAL) side ground or EARTH side ground when repairing.
Some model's power circuit is partly different in the GND. The differ-
ence of the GND is shown by the LIVE : (
) side GND, the ISOLAT-
ED (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 the LIVE side
GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at
the same time with a measuring apparatus (oscilloscope etc.). If
above note will not be kept, a fuse or any parts will be broken.
(6) If any repair has been made to the chassis, it is recommended that
the B1 setting should be checked or adjusted (See B1 POWER
(7) 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.
(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 10k
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
(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, screw heads, earphone jack, control shafts, etc.) to
be sure the product is safe to operate without danger of electrical
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 rat-
ed 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.
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
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
µF 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 INSTALLATION SITE
(1) The rear of this set is provided with ventilation openings.
Install the set more than 5 cm from a wall and in a location
with good ventilation.
(2) Avoid the following types of locations.
a) Unstable locations (location must be able to
withstand heavy weight).
b) Locations subjected to direct sunlight.
c) Near stoves or other heating devices.
d) Locations subjected to humidity or oily smoke.
e) Dusty locations.
f) Locations with strong vibration.
1.2.2 INSTALLATION ADJUSTMENT
When installing, moving or changing the orientation of the set,
perform static convergence adjustment according to the
Adjusting CRT color convergence have MANUAL and RESET.
It adjust on the MENU screen.
Please have you TV on for at least 20 minutes before sing this
This adjustment will be needed only when the colors of the
characters/lines are separated and lack in distinction. If not,
please don't perform the adjustment.
"CONVERGENCE" in the INITIAL SETUP menu with
[function up/down] key.
(2) Press the [function left/right] key, the CONVERGENCE
(3) Press the [function up/down] key, and select the
(4) Press the [function left/right] key, then CONVERGENCE
adjustment screen appear. [Fig.1]
· If all the crosses are white, no convergence
adjustment is needed.
(5) Select the location you want to adjust by using the
[number (2/4/5/6/8)] keys on the remote control unit.
(6) Press the [SELECT] key to change the color of the box
to the color of the cross you want to adjust (red or blue).
· You cannot adjust the green cross.
(7) Use the [function up/down] key and the [function left/
right] keys to adjust the position of the cross.
(8) Adjust the three colors crosses until they overlap and
appear as a single white cross.
(9) Press the [OK] key.
· When you adjust the convergence, make sure you
start with the center position (position 5), and work
your way around radial for best results.
· When you make the adjustment in the center
(positions 5), you are making the adjustment for the
whale screen. In other positions, you are making the
adjustment only in that area.
· You can reset the adjustment if you do not like the
results, See below.
(10) Press the [menu] key to end the convergence
RESET in the CONVERGENCE menu resets all convergence
adjustments to the factory default setting.
(more than 5cm)
SPECIFIC SERVICE INSTRUCTIONS
· Rear Projection HDTV.
· 3-2 PULL DOWN : You can enjoy DVD movies at the highest picture quality.
· MOTION COMPENSATION : With this function, the seamless reproduction of dynamic motion on the screen has been realized.
· Bullet-in DSD (Digital Super Detail) circuit and 3 dimension Y/C separate circuit.
· Receive DTV broadcast (1080i / 720p / 480p / 480i)
· Built-in Component (Y / Pb / Pr) input.
· Built-in A.H.S. circuit.
L / MONO
MENU button ( OPERATE
CHANNERL -/+ button ( OPERATE
VOLUME -/+ button
MAIN POWER button
POWER LED (Blue)
( S-VIDEO / VIDEO / AUDIO )
UNPLUG THE POWER CORD FROM AC OUTLET
BEFORE REMOVING THE REAR COVER
When the rear cover is removed, follow "CAUTION AT DISASSEMBLY"
procedure in the service manual before plugging the TV's power
cord into an AC outlet. Failure to follow the procedure will result
in PERMANENT damage to some of the television features.
DÉBRANCHEZ LE CORDON DE LA PRISE DE COURANT
C.A. AVANT DE RETIRER LE COUVERCLE ARRIÈRE.
Une fois le couvercle arrière déposé suivez l procédure
« ATTENTION LORS DU DÉMONTAGE » décrite dans une
prise c.a. L'omission de suivre la procédure causera des
dommages PERMANENTS à certaines fonctions du téléviseur.
Licensed from BBE Sound, Inc. under USP4638258, 4482866
BBE is a registered trademark of BBE Sound, Inc.
Sous licence de BBE Sound, Inc.
BBE est une marque de fabrique déposée de BBE Sound, Inc.
Autorizado con licencia de BBE Sound, Inc.
BBE es une marca comercial registrada de BBE Sound, Inc.
FRONT CONTROL KEY & TERMINAL
AUDIO OUT terminal
CENTER CHANNEL INPUT terminal
( S-VIDEO / VIDEO / AUDIO )
( VIDEO / AUDIO )
( S-VIDEO / VIDEO / AUDIO )
INPUT-1 COMPONENT VIDEO terminal
( Y / Pb / Pr )
INPUT-2 COMPONENT VIDEO terminal
( Y / Pb / Pr )
Antenna terminal ( VHF / UHF )