In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its
original condition and only parts identical to those specified should be used.
Specifications are subject to change without
prior notice.
SHARP CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
1
34N-WF5H
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are
thoroughly familiar with all safety checks and the servicing guidelines which follow:
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
3. Semiconductor heat sinks are potential shock hazards
when the chassis is operating.
4. The chassis in this receiver has two ground systems
which are separated by insulating material. The nonisolated (hot) ground system is for the B+ voltage
regulator circuit and the horizontal output circuit. The
isolated ground system is for the low B+ DC v oltages
and the secondary circuit of the high voltage
transformer.
To prevent electrical shock use an isolation
transformer between the line cord and power
receptacle, when servicing this chassis.
CAUTION: FOR CONTINUED
PROTECTION AGAINST A
RISK OF FIRE, REPLACE
5A 125V
ONLY WITH SAME TYPE 5A125V FUSE.
SERVICING OF HIGH VOLTAGE SYSTEM
AND PICTURE TUBE
When servicing the high voltage system,
remove the static charge by connecting a
10k ohm resistor in series with an insulated
wire (such as a test probe) between the picture tube ground and the anode lead. (AC
line cord should be disconnected from AC
outlet.)
1. Picture tube in this receiver employs integral
implosion protection.
2. Replace with tube of the same type number for
continued safety.
3. Do not lift picture tube by the neck.
4. Handle the picture tube only when wearing
shatterproof goggles and after discharging the high
voltage anode completely.
X-RADIATION AND HIGH VOLTAGE LIMITS
1. Be sure all service personnel are aware of the
procedures and instructions covering X-radiation. The
only potential source of X-ray in current solid state
TV receivers is the picture tube. Howe ver , the picture
tube does not emit measurable X-Ray radiation, if
the high voltage is as specified in the "High Voltage
Check" instructions.
It is only when high voltage is excessive that Xradiation is capable of penetrating the shell of the
picture tube including the lead in the glass material.
The important precaution is to keep the high voltage
below the maximum level specified.
2. It is essential that ser vicemen have available at all
times an accurate high voltage meter.
The calibration of this meter should be checked
periodically.
3. High voltage should always be kept at the rated v alue
−no higher. Operation at higher voltages may cause
a failure of the picture tube or high voltage circuitry
and;also, under certain conditions, may produce
radiation in exceeding of desirable levels.
4. When the high voltage regulator is operating properly
there is no possibility of an X-radiation problem. Every
time a color chassis is serviced, the brightness should
be tested while monitoring the high voltage with a
meter to be certain that the high voltage does not
exceed the specified value and that it is regulating
correctly.
5. Do not use a picture tube other than that specified or
make unrecommended circuit modifications to the
high voltage circuitry.
6. When trouble shooting and taking test measurements
on a receiver with excessiv e high voltage, av oid being
unnecessarily close to the receiver.
Do not operate the receiver longer than is necessary
to locate the cause of excessive voltage.
2
2
2
2
IMPORTANT SERVICE SAFETY PRECAUTION
(Continued)
34N-WF5H
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks.
1. Inspect all lead dress to make certain that leads are
not pinched or that hardware is not lodged between
the chassis and other metal parts in the receiver.
2. Inspect all protective devices such as non-metallic
control knobs, insulating materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacity networks, mechanical
insulators and etc.
3. To be sure that no shock hazard exists, check for
leakage current in the following manner.
• Plug the AC cord directly into a 120 volt AC outlet,
(Do not use an isolation transformer for this test).
• Using two clip leads, connect a 1.5k ohm, 10 watt
resistor paralleled by a 0.15µF capacitor in series with
all exposed metal cabinet parts and a known earth
ground, such as electrical conduit or electrical ground
connected to earth ground.
• Use an AC voltmeter ha ving with 5000 ohm per v olt,
or higher, sensitivity to measure the A C v oltage drop
across the resistor.
• Connect the resistor connection to all exposed metal
parts having a return to the chassis (antenna, metal
cabinet, screw heads, knobs and control shafts,
escutcheon and etc.) and measure the AC voltage
drop across the resistor.
AII checks must be repeated with the AC ine cord
plug connection reversed. (If necessary, a nonpolarized adapter plug must be used only for the
purpose of completing these check.)
Any current measured must not exceed 0.5 milliamp.
Any measurements not within the limits outlined
above indicate of a potential shock hazard and
corrective action must be taken before returning the
instrument to the customer.
Many electrical and mechanical parts in television
receivers have special safety-related characteristics.
These characteristics are often not evident from visual
inspection, nor can protection afforded by them be
necessarily increased by using replacement components
rated for higher voltage, wattage and etc.
Replacement parts which have these special safety
characteristics are identified in this manual; electrical
components having such features are identified by "å"
and shaded areas in the
For continued protection, replacement parts must be
identical to those used in the original circuit. The use of
substitute replacement parts which do not have the same
safety characteristics as the factory recommended
replacement parts shown in this service manual, may
create shock, fire, X-radiation or other hazards.
3
34N-WF5H
Front control section
POWER
Press →
Press again Off.
LOCATION OF USER'S CONTROL
On.
→
LED
POWER
(Stand-by: RED
ON: GREEN)
SENSOR AREA
FOR REMOTE CONTROL
IN DOOR
DEGAUSS
DEGAUSS button
Press the DEGAUSS button to improve color unevenness of the screen
caused by moving the TV or changing the angle of the screen.
MENU
MENU button
Press MENU button to
access the MAIN MENU
screen
CH(up)/(down) buttons
( ) Selects next higher channel
( ) Selects next lower channel
AUDIO L/R
S-VIDEO input VIDEO input
input
S-VIDEO VIDEO IN 2 L-AUDIO-R
(These terminals are also provided on the rear)
4
LOCATION OF USER'S CONTROL (Continued)
DTV
STB
POWER
TV
A
ENTER
MENU
VOLCH
AV MODE
MUTE
INPUT
ANT-A/B
DISPLAY
FLASHBACK
ENT.
CC
PLAY FF
POP
REW
PAUSE
STOP
REC
SEARCH
SELECT
DDFC
G1550CE
TWIN CH
VIEW
MODE
TWIN
PICTURE
VCR
POWER
MTS/SAP
L - TWIN ZOOM - R
SWAP FREEZE
BCD
CATV
HD-Ready TV
VCR CH
FAVORITES
VCR
INPUT
Press → Switches to external video
INPUT 1 mode.
Press again → Switches to external video
INPUT 2 mode.
Press 3 times → Switches to external video
INPUT 3 mode.
Press 4 times → Switches to external video
INPUT 4 mode.
Press 5 times → Switches to external video
INPUT 5 mode.
Press 6 times → Switches back to the
original TV mode.
POWER
Press → On.
Press again → Off. (Stand-by)
FAVORITES buttons
•
Used to select any of four preset channels.
Cursor buttons
Used to move cursor on menu screen.
ENTER button
CHANNEL UP/DOWN
(+) Selects next higher channel.
(–) Selects next lower channel.
VOLUME UP/DOWN
(+) Increases sound.
(–) Decreases sound.
MENU
Press → Accesses MAIN MENU.
Press again → Exits MAIN MENU.
AV MODE
MUTE
Press → Mutes sound.
Press again → Restores sound.
•
CLOSED CAPTION appears when sound is muted.
DIRECT ACCESS
Accesses any channel by the keypad.
button: Sharp DTV Decoder only
ENT.
Used in some instances where a VCR or
Cable Converter Box requires an “enter”
command after selecting channels, when
using the DIRECT ACCESS button.
DISPLAY
Press → Displays receiving channel for 4
seconds.
Press again → Displays remaining time of
SLEEP TIMER and VIEW
TIMER for 4 seconds.
FLASHBACK
Returns to previously viewed channel.
VIEW MODE
Select view size.
CC (Closed Caption)
Displays captions during
closed-caption broadcasts.
MTS/SAP
MTS/SAP select
VCR CONTROL
DDFC
Used to select High-quality image.
LIGHT
When this button is pressed , some buttons on the
remote control unit will light. The lighting will turn off if no
operations are performed within about six seconds. This
button is used for performing operations in dark places.
ANT-A/B button
Press to switch between ANTENNA-A and
ANTENNA-B when you wish to watch TV.
Remote control mode select buttons
Use to switch the remote control unit modes.
•
This remote control can be used to operate the TV,
a DTV/STB Decoder and a Cable TV converter.
•
By selecting one of the three mode select buttons,
this remote control can be used to adjust common
functions, such as channel selection, for that device.
INFRARED TRANSMITTER WINDOW
POP FUNCTION
With the VIDEO inputs, you can watch two pictures at
the same time.
"-TWIN CH-': Used to switch the channel for the
sub-picture of the TWIN PICTURE
screen.
TWIN PICTURE: Press to turn the TWIN PICTURE
screen function on and off.
SEARCH:Press to select the SEARCH
screen mode.
SELECT:Selects the screen for switching
the channel or input source.
FREEZE: When this button is pressed with
the regular screen, will change to the
TWIN PICTURE screen and the
picture at the time the button was
pressed will become the sub-picture,
displayed as a frozen image.
L-TWIN ZOOM: The left screen is enlarged with the
TWIN PICTURE function.
TWIN ZOOM-R: The right screen is enlarged with the
TWIN PICTURE function.
SWAP:The left and right screens are
interchanged with the TWIN
PICTURE function.
Note
For use of this remote control with an analog TV.
Note
• The above shaded buttons on the Remote Control glow in the dark. To use the glow-in-the-dark display on the
remote control, place it under a fluorescent light or other lighting.
• The phosphorescent material contains no radioactive or toxic material, so it is safe to use.
• The degree of illumination will vary depending on the strength of lighting used.
• The degree of illumination will decrease with time and depending on the temperature.
• The time needed to charge the phosphorescent display will vary depending on the surrounding lighting.
34N-WF5H
5
34N-WF5H
DIMENSIONS
T op View
Front ViewSide View
[Units: mm (inches)]
6
REMOVING THE MAJOR PARTS
1. Remove the 13 lock screws off the rear cover.
2. Holding up the chassis frame, draw out the chassis about 5 cm (1.31/32 inch) first, disconnect the
speaker leads from the signal Unit, and pull out the chassis all the way.
34N-WF5H
~
~
Cabinet B
~
~
~
~
~~
Note: Cabinet B mounting procedure and
precautions
1. Position the cabinet B in parallel with the
cabinet A. Start pushing in the cabinet B.
2. Insert the cabinet B until the clearance
between the cabinets A and B becomes 150
mm or so. Look into the terminal opening in
the back of the cabinet B to make sure the
tuner PWB and shield are out of contact with
the speaker guide boss.
3. Finally insert the coupling ribs of the cabinet
B in this order: left rib, top rib and right rib
when viewed from the back of the product.
~
Cabinet A
~
~
Signal Unit Frame
AC Filter Unit Frame
Frame Holder
Power Unit Frame
Detaching the cathode ray tube
1. Detach the anti-magnetized coil from the four coil holders
that are at the cathode ray tube corners of the cabinet.
2. Remove the four pairs of screws and nuts off the cathode
ray tube, and detach the cathode ray tube. (The tube weighs
about 60 kg (132.2lbs).)
Cathode ray tube handling precautions
Discharging
There may be a build-up of high-tension static electricity at
the high-voltage electrode (covered with the anode cap on
top of the cathode ray tube). Before taking the anode out of
the cathode ray tube, get it discharged.
Carrying
The cathode ray tube weighs 60 kg (132.2lbs) or so and its
shape is awkward to fit your hands. Preferably make a twoperson team to carry and move the tube.
Disposal
The cathode ray tube is under high vacuum inside. Before
disposing of it, get the air vent tip at the tube’s neck socket
cracked in order to turn the tube to the atmospheric pressure
level.
Degaussing Coil
Coil Holders
(4 locations)
Rear Panel
Get the air vent tip cracked.
`
`
`
`
7
34N-WF5H
Servicing precautions
1. Protector Operation
This model is provided with five protector circuits. Below discussed are the behaviors and indications of these circuits.
(Note: In some cases, the LED flashing cycle and possible trouble spot may be inconsistent.)
1 Over-current Protector Circuit:
A rush current into the flyback transformer is detected. The circuit is activ ated if an o ver-current flo ws in.
Indication: The power LED (red) flashes once.
2 X-Radiation Protector Circuit:
This circuit is activated if the rectified heater voltage rises above its specified level.
Indication: The power LED (red) flashes once.
ON
OFF
1.4
0.2
3 Vertical Output Protector Circuit:
The vertical output is detected. The circuit is activated if the vertical output is missing (hor izontal-only
screen or the like).
Indication: The power LED (red) flashes twice
(seconds)
0.2
ON
OFF
4 +B Under-voltage Protector Circuit:
The voltages at the 6V, 10V, 16V, 28V and 30V lines of the switching regulator are detected. The circuit
is activated if any of the voltages drops below its specified level.
5 +B Over-voltage Protector Circuit:
The voltages at the 6V and 10V lines are detected. The circuit is activated if any of the voltages rises
above its specified level.
Indication: The power LED (red) flashes three times.
ON
OFF
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
1.4
1.4
0.2
0.2
0.2
0.2
0.2
0.2
0.2
(seconds)
(seconds)
0.2
2. Stop of Protector Operation
The protector may be kept inactive by opening the detection circuits or grounding C3230 and C3231 (on the Signal
Unit). The ver tical output protector circuit, however, cannot be made inactive.
Note: Be sure to get the protector back to normal after servicing.
8
3. Self-diagnostic Function (Protector Circuit Operation)
+130V line
FBT
+10V line
+16V line
1
36
IC501
T630
4
7
10
R620
to FBT
Q750
Q782
Q3255
Q3224
Q781
C3231
C3230
D732 D731
D633
D790
D789
D786
D782
D781
D787
D792
D783
D772
D560
D582
IC3501
(DUNTKA140DE)
(DUNTKA096DE)
(DUNTKA163DE)
85
84
95
1
7
80
Q3208
ACPOW
Q3204
RY3701
(DUNTKA116DE)
Micom UNIT
Horizontal
Protector
Power Protector
Micro-processor
Vertical Protector
Relay Drive
AC Relay
AC Filter UNIT
Signal UNIT
Drive
Drive
IC3210
Inverter IC
+14V line
-14V line
IC770 (Chopper Regulator)
+6V line
+30V line
(VT line)
+28V line
(Audio + B)
Drive Circuit
Power UNIT
Current AMP.
Detection Circuit
A: Detection
B: Possible Trouble Spot
1 Over-Current Protector Circuit
A: +130V line current detected
(Flyback transformer rush current detected)
B: •Flyback transformer defective
•Horizontal deflection circuit transistor or diode
This model is equipped with five protector circuits. Shown below are the detections of the protector circuits and
possible trouble spots (outlined).
34N-WF5H
9
34N-WF5H
Bundle K, GS, EW and NS.
Screw
Insert EW ×2
Insert GS.
Bundle K.
Connect K.
DRESSING THE LEADS
Insert GS and dress
Insert NS.
GS
the leads with no
slack. Fold back and
bundle the leads.
SH
Insert EW
Speaker boxe:RSP-Z0109CEZZ x2
Place the speaker boxes in
position and tighten the 4 screws.
Screw:LX-TZ3096CEFD ×4
Tightening torque:
1.17 ±0.19 N-m
(12 ±2 kg-cm)
Screw
Bundle M and EW.
Connect M.
å
Anode clamp: LHLDW1087CEKZ x2
Reposition the anode clamp.
Keep the CRT and other leads
10 mm or more away
from the anode lead.
Couple the speaker
connectors
(for both sides).
Connect
the coating ground lead
(2 points).
Dress the speaker leads
(for both sides).
Catch them at the hooks
indicated.
å
Bundle the K and
anode leads.
Connect the anode
(after connecting the
coating ground lead).
GS
Remove the pin cover
and fit the CRT PWB.
SH
Insert the PWB
(until securely locked).
The wider side is the
positive terminal. Do not
confuse the right and left
speakers. Their polarities
Couple the speaker
connectors
(for both sides).
Dress the speaker leads
(for both sides).
Catch them at the hooks indicated.
Connect Pu.
Insert SH.
Connect M.
(Keep the M leads tight.)
are different from each
other.
Pu/Mg
å
Secure the CA leads
at 2 spots.
10
Earth
å
Secure the AC cord at 2 spots.
Place the core between
the two wire holders.
å
Insert the AC cord holder (LHLDK0014PEZZ)
into the indicated recess.
34N-WF5H
INSTALLATION AND SERVICE INSTRUCTIONS
Note:(1)When performing any adjustments to resistor controls and transformers use non-metallic
screwdrivers or TV alignment tools.
(2)Before performing adjustments, the TV set must be on at least 15 minutes.
CIRCUIT PROTECTION
The receiver is protected by a 5.0A fuse (F701),
mounted on PWB-F, wired into one side of the AC
line input.
X-RADIATION PROTECTOR CIRCUIT TEST
After service has been performed on the horizontal
deflection system, high voltage system, B+ system,
test the X-Radiation protector circuit to ascertain
proper operation as follows:
1. Apply 120V AC using a variac transformer for
accurate input voltage.
2. Allow for warm up and adjust all customer controls
for normal picture and sound.
3. Receive a good local channel.
4. Connect a digital voltmeter to TP653 and make sure
that the voltmeter reads 10.9 ±0.6V.
5. Apply external 12.0V DC at TP653 by using an
external DC supply, TV must be shut off.
6. To reset the protector, unplug the AC cord and plug
the AC cord power on. Now make sure that normal
picture appears on the screen.
7. If the operation of the horizontal oscillator does not
stop in step 5, the circuit must be repaired before the
set is returned to the customer.
HIGH VOLTAGE CHECK
High voltage is not adjustable but must be checked
to verify that the receiver is operating within safe
and efficient design limitations as specified checks
should be as follows:
1. Connect an accurate high voltage meter between
ground and anode of picture tube.
2. Operate receiver for at least 15 minutes at 120V AC
line voltage, with a strong air signal or a properly tuned
in test signal.
3. Enter the service mode (JWS mode). Enter the JWS
address "170" and data "1" (Y-Mute and V-Stop).
4. The voltage should be approximately, 35.0kV (at zero
beam).
If a correct reading cannot be obtained, check circuitry
for malfunctioning components. After the voltage test,
make Y-mute off to the normal mode.
11
34N-WF5H
ELECTRICAL ADJUSTMENT
The TV set has been factory-adjusted to optimum condition. If by any chance an adjustment point gets out of spec
or readjustment is needed after component part replacement, take the following steps.
» Instruments required for servicing
• STB (Set Top Box)
Use model TU-DTV1000 that is already available on the market.
• HD Signal Generator
Used to generate 1080I monoscope pattern.
• NTSC Signal Generator
Used to generate monoscope, crosshatch and half color bar patterns.
» Calling the service mode (JWS mode)
Holding down the MENU button on the TV set front, turn on the power button on the TV set .
The screen as shown in Figure A. appears and the TV set is now in the service mode (JWS mode).
ADDRESS
DATA
PICTURE MODE
» To Exit the Service Mode (JWS mode)
Turn the television off by pressing the power button.
» Service Mode (JWS mode) Functions
1) The following adjustments and settings can be handled with the buttons on the R/C unit.
2) Applied buttons and their functions
In the service mode (JWS mode), the following buttons on the R/C Unit can be used for special functions.
BUTTONFUNCTION
1~9, 0Used to enter numerical address settings; corresponding to numbers 0 thru 9.
100Used as CLEAR button to go back to the initial screen.
INPUTUsed as ENTER button to input addresses and data.
VOLUME UPUsed to turn up data.
VOLUME DOWNUsed to turn down data.
POWERUsed to exit the mode.
0 0 0
0
STRETCH
Figure A.
(Horizontal Size, Side Pincushion, Horizontal Position)
12
34N-WF5H
3) Address settings (selecting adjustment and setting items)
1 Using the numeric buttons (0 thru 9), type in an address from the highest digit (left) to the lowest digit
(right) one by one. Each time a digit is buttoned in, the cursor moves to the next entry position.
2 Using the INPUT button, enter the address. The cursor moves to the data display position and the se-
lected address status is displayed there.
3 To adjust the white balance cut-off level, it is necessary to keep the screen cut off. It is therefore impossi-
ble to keep adjusting it with the address being displayed on-screen. (For details, refer to the White Balance Adjustment.)
• Display change example
In selecting the address "100" (vertical linearity):
000000000
Initial displayButton in for "1"Button in for "0"Button in for "0" Button in for "INPUT"
`If the wrong address has been buttoned in, use the “100” key to clear the address display and get it
back to the initial one.
4) Data settings (adjusting and setting items)
1 Use the VOLUME UP/DOWN buttons to modify the data.
2 Use the INPUT button to enter the modified data (setting).
• For a function execute command address (factory-setting function and etc.), the INPUT button is used
to select and call the function. With the adjustment function selected, the button is employed to enter
the data of an item.
` When the data has been modified in the adjustment function, the new data will be immediately
entered regardless of the INPUT button. Keep in mind, therefore, that the original data cannot be
held.
• Data range
Mode Setting Function: 0 or 1
Adjustment Function:As per each adjustment item (separately discussed)
» Initial factory settings
When the following services have been made, it is necessary to make the initial factory settings.
1) When the IC3102 (Memory IC) has been replaced:
This IC stores the video- and deflection-related data in memory. A replacement IC3102 does not have any
data written in (Adjustment 0). It is therefore required to make the initial settings 1 and 2 on it. Take the
following procedure.
1 Initial Factory Settings 1 (Initializing the IC)
2 Initial Factory Settings 2 (Making the software menu setting data to the factory-adjustment level)
3 Various Adjustments
2) When the channel selection IC3501 (Micro-processor) has been replaced:
1 Initial Factory Settings 2
When the micro-processor alone has been replaced, just make this adjustment, not any other ones.
1
1
000
1
0
1
00
19
(Address)
(Data display)
ADDRESSSETTING ITEMDATA VARIABLE RANGE
001Initial factory settings 10/1: Use "1"
002Initial factory settings 20/1: Use "1"
13
34N-WF5H
Adjustment items
Video-Related Adjustment
Make the initial factory settings 2 first and then go to this adjustment.
Make the initial factory settings 2 first and then go to this adjustment.
In this adjustment, the data are different by the SIDE-BAR, SMART-STRETCH, CINEMA-ZOOM and STRETCH
modes.
Make the initial factory settings 3 first and then go to this adjustment.
JWS ADDRESS
020On-screen Display Horizontal Position
ITEMINITIAL VALUEDATA VARIABLE RANGE
8 (1080I mode)
14 (480P mode)
0~255
Table D.
<Note>
When the initial factory settings 1 have been made, the initial factory settings 2 and the line adjustment data are
all cleared. This would require readjustments for all the modes.
Before replacing an IC, write down the data settings in all the modes. Note, however, that the settings may be
different from unit to unit. Take the above reference data as an adjustment guideline.
1. Make this adjustment after the deflection, white
balance, normal mask, purity, convergence and
focus have all been completely adjusted.
2. Set to the video standard condition.
(Picture at MAX, brightness and sharpness at
CENTER)
3. Set the VIEW MODE to STRETCH.
4. Receive the good local channel.
5. Enter the JWS address 166. Adjust the brightness
to the best point.
6. Switch to the 1080I mode. Make the same adjustment.
1. Make this adjustment after the Y signal level has
been completely adjusted.
2. Take the same steps 1., 2., 3. and 4. f or the brightness adjustment.
3. Enter the R/C address 160. Adjust the picture to
the best point.
1. In the twin-picture mode. Receive the NTSC standard half color bar signal for the right-side screen.
2. Connect the oscilloscope to TP1801. Enter the
JWS address 250. Using the VOLUME UP/DOWN
keys, adjust the amplitude between the black level
and white peak to 0.7±0.05 Vp-p.
12Sub-screen tint
adjustment (R/C,
JWS address 258)
13Sub-screen color
adjustment (R/C,
JWS address 259)
14Deflection distor-
tion, vertical and
horizontal position
adjustments
Signal: Good local channel
Adjusting point:
Remote Control
(JWS address 258)
Specification:
Normal flesh tone
Signal: Good local channel
Adjusting point:
Remote Control
(JWS address 259)
Specification:
Normal color level
1. In the twin-picture mode, receive the good local
channel for the right-side screen (sub-screen).
2. Enter the JWS address 258. Using the VOLUME
UP/DOWN keys , visually adjust the tint on the rightside screen to that on the left-side screen.
3. Switch the channels for the right-side screen. Make
sure the tint is optimum on other channels.
1. In the twin-picture mode, receive the good local
channel for the right-side screen (sub-screen).
2. Enter the JWS address 259. Using the VOLUME
UP/DOWN keys, visually adjust the color on the
right-side screen to that on the left-side screen.
3. Switch the channels for the right-side screen. Make
sure the color is optimum on other channels.
Discussed here are the adjustment procedures for
the STRETCH-mode screen size.
For the other modes, refer to Table B. and go to their
respective procedures.
Make these adjustments for the 480P and 1080I
modes as well.
(1)Check the purity magnet assembly mounting position.
(2)Receive the crosshatch pattern signal.
(3)Adjust the raster tilt by turning the deflection yoke.
(Align the projections at both ends of CRT’s X axis with the screen’s X
axis.)
(4)Using the 4-pole and 6-pole magnets, adjust the static convergence at
the center of the raster.
(Refer to the convergence adjustment.)
(5)Check the standard mode, and receive the green-only (or white) signal
from the pattern generator.
(6)Keep the deflection yoke’s opening horizontal together with the neck.
Move the deflection yoke to and fro until the screen turns green only (or
white). If the red and blue (or yellow and cyan) colors at both sides are
not symmetrical, get them symmetrical by opening and closing the 2pole magnet in reference to its axis.
(7)Readjust the deflection yoke’s tilt while looking at the crosshatch
pattern. Tighten up the deflection yoke lock screw to secure the yoke in
position.
(8)Finally fix the deflection yoke opening with the wedge.
a) Receive the crosshatch pattern signal.
b) Adjust the red and blue colors at the screen center by opening and
closing or moving the 4-pole magnet.
c) Adjust the green and magenta colors at the screen center using the 6-
polemagnet in the same way.
(red, blue)
d) Repeat the above steps b) and c) to finely adjust the green, red and
blue colors at the screen center.
(2) Dynamic convergence adjustment
a) YH
Use the YH-VR control on the DY PWB to produce the specified crosspoint. If the nearby PQH (displaced vertical lines at the corners) is out
of spec, readjust it by using the ferrite sheet and or moving the neck.
(Do not move the neck too much, or vertical distortion may be caused
or the vertical linearity will be adversely affected.)
b) YV
Use the YV-VR control on the DY PWB to adjust the hor izontal lines at
the top and bottom of the screen to optimum.
(3) Look at the entire screen to see if there is no problem. Finally fix the
wedge and purity magnet assembly with glass tape and lacquer.
Crosshatch pattern
Deflection yoke
fastening tape
Screen center
2-pole magnet
4-pole magnet
6-pole magnet
Purity magnet assembly
Y axis
H
Y
X axis
(fig. A)(fig. B)(fig. C)(fig. D)
RedRedRedRedBlue BlueBlue Blue
Adjust with the VR1
control.
Adjust with the VR2
control.
Y
V
X
V
22
No.AdjustingPointAdjusting Procedure
25White balance adjust-
ment
(1) Receiv e the monoscope pattern signal. Set the A V mode to "STD-1" and the
quality-picture mode to "480P".
(2) Using the R/C unit keys, enter the JWS address170. Set the data "1" (Y-
Mute & V-Stop).
(3) Now turn the screen control until one color (reference color) in the raster
becomes dim.
(4) For the other two non-luminous colors, enter their JWS address numbers
with the R/C unit keys, ref erring to the table belo w . Adjust the cut-off data so
that the horizontal raster lines become whitish.
(5) Turn down the screen control to cut off the raster.
(6) Using the pow er s witch on the set or the R/C unit, turn the power off and on
again to release the horizontal status.
(7) Using the R/C unit ke ys, enter the JWS address numbers listed below . Adjust
the drive so that the raster becomes whitish.
(8) Lower the brightness and the picture level. Check the white balance on the
dark screen. If out of spec, readjust the cut-off directly.
(9) Repeat the above steps (7) and (8) to have the white balance good on the
bright screen.
(10) Now adjust the brightness as well.
(11) Set the quality-picture mode to "1080I", and take the above steps (7) thru
(10) again.
34N-WF5H
26OSD (On-screen-display)
position adjustment
(480P, 1080I)
(R/C, JWS address 020)
(1) Set the AV mode to "STD-1".
(2) Set the screen size to STRETCH.
(3) Receive the monoscope pattern signal.
(4) Enter the JWS address 020.
(5) Using the VOLUME UP/DOWN keys, adjust the right- and left-side pictures
equally spaced.
(6) Get MENU OSD on the screen and check to see if the right- and left-side
areas are equally speced. If not, take the above steps (4) and (5) again.
(7) Switch to the 1080I mode and make similar adjustment.
SLEEP TIME REMA IN
VIDEO
AUDIO
SCREEN
PARENT CTRL
CC
CH SETUP
SETUP
–––
23
SELECT
ENTER
EXIT
34N-WF5H
No.AdjustingPointAdjusting Procedure
27Deflection distortion,
vertical and horizontal
position adjustments at
various signal inputs
28White balance adjust-
ment at HD
(1080I component) signal
input
1. HD (component) signal input
1) Set the AV mode to "STD-1".
2) Feed the monoscope pattern (1080I) signal through the INPUT5 BNC
terminal.
3) Referring to Table-2, take the adjustment point step No.15 thru 22.
2. HD-IN (1080I RGB) signal input
1) Set the AV mode to "STD-1".
2) Feed the monoscope pattern (1080I RGB) signal through the INPUT3/
HD INPUT (D-sub 15-pin) terminal.
3) Referring to Table-2, take the adjustment point step No.15 thru 22.
3. HD-IN (480P RGB) signal input
1) Set the AV mode to "STD-1".
2) Feed the monoscope pattern (480P RGB) signal through the INPUT3/
HD INPUT (D-sub 15-pin) terminal.
3) Referring to Table-2, take the adjustment point step No.15 thru 22.
1. Set the AV mode to "STD-1". Feed the monoscope pattern signal (1080I)
through the IN5 BNC terminal (Y). Select and receive the INPUT5 signal.
2. Select the JWS address and make the raster look whitish. (This address is
the same as for the usual white balance adjustment.)
3. Turn down the picture and brightness almost to the cut-off level. Select the
cut-off adjustment address (see T able 3.) and adjust so that the raster turns
gray. (At this time, keep the minimum-level color intact and select the JWS
cut-off address for other colors.)
4. Repeat the above steps 2. and 3. and adjust the white balance on the
bright screen.
5. Make the brightness adjustment as well.
29Tint adjustment at HD
(1080I component) signal
input
(R/C, JWS address 162)
30Color adjustment at HD
(1080I component) signal
input
(R/C, JWS address 164)
31Brightness adjustment at
HD (1080I component)
signal input
(R/C, JWS address 166)
32Picture adjustment at HD
(1080I component) signal
input
(R/C, JWS address 160)
1. Set the A V mode to “STD-1”. F eed the 1080I component signal through the
IN5 BNC terminal.
2. Select and receive the INPUT5 signal.
3. Enter the JWS address 162. Using the VOLUME UP/DOWN keys, visually
adjust to the normal flesh tones.
1. Take the same steps 1. and 2. for the tint adjustment at HD signal input.
2. Enter the JWS address 164. Using the VOLUME UP/DOWN keys, visually
adjust to the normal color level.
1. Make this adjustment after the white balance adjustment at HD signal input.
2. Take the same steps 1. and 2. for the color tone adjustment at HD signal
input.
3. Enter the JWS address 166. Using the VOLUME UP/DOWN keys, visually
adjust to the normal brightness level.
1. Take the same steps 1. and 2. for the brightness adjustment at HD signal
input.
2. Enter the JWS address 160. Using the VOLUME UP/DOWN keys, visually
adjust to the normal contrast range.
24
No.AdjustingPointAdjusting Procedure
34N-WF5H
33White balance adjust-
ment at HD-IN
(1080I RGB) signal input
34Brightness adjustment at
HD-IN (1080I RGB) signal
input
(R/C, JWS address 174)
35Picture adjustment at
HD-IN (1080I RGB) signal
input
(R/C, JWS address 173)
1. Set the AV mode to "STD-1". Feed the monoscope pattern signal (1080I)
through the INPUT3/HD INPUT (D-sub 15-pin) terminal. Select and receive
the INPUT3 HD-IN signal.
2. Select the JWS address and make the raster look whitish. (This address is
the same as for the usual white balance adjustment.)
3. Turn down the picture and brightness almost to the cut-off level. Select the
cut-off adjustment address (see T able 3.) and adjust so that the raster turns
gray. (At this time, keep the minimum-level color intact and select the JWS
cut-off address for other colors.)
4. Repeat the above steps 2. and 3., and adjust the white balance on the
bright screen.
5. Make the brightness adjustment as well.
1. Make this adjustment after the white balance adjustment at HD-IN signal
input.
2. Take the same steps 1. and 2. for the tint adjustment at HD-IN signal input.
3. Enter the JWS address 174. Using the VOLUME UP/DOWN keys, visually
adjust to the normal brightness level.
1. Take the same steps 1. and 2. f or the brightness adjustment at HD-IN signal
input.
2. Enter the JWS address 173. Using the VOLUME UP/DOWN keys, visually
adjust to the normal contrast range.
36White balance adjust-
ment at HD-IN
(480P RGB) signal input
37Brightness adjustment at
HD-IN (480P RGB) signal
input
(R/C, JWS address 174)
38Picture adjustment at
HD-IN (480P RGB) signal
input
(R/C, JWS address 173)
1. Set the AV mode to "STD-1". Input the monoscope pattern signal (480P)
through the INPUT3/HD INPUT (D-sub 15-pin) terminal. Select and receive
the INPUT3 HD-IN signal.
2. Select the JWS address and make the raster look whitish. (This address is
the same as for the usual white balance adjustment.)
3. Turn down the picture and brightness almost to the cut-off level. Select the
cut-off adjustment address (see T able 3.) and adjust so that the raster turns
gray. (At this time, keep the minimum-level color intact and select the JWS
cut-off address for other colors.)
4. Repeat the above steps 2. and 3. and adjust the white balance on the
bright screen.
5. Make the brightness adjustment as well.
1. Make this adjustment after the white balance adjustment at HD-IN signal
input.
2. Take the same steps 1. and 2. for the tint adjustment at HD-IN signal input.
3. Enter the JWS address 174. Using the VOLUME UP/DOWN keys, visually
adjust to the normal brightness level.
1. Take the same steps 1. and 2. f or the brightness adjustment at HD-IN signal
input.
2. Enter the JWS address 173. Using the VOLUME UP/DOWN keys, visually
adjust to the normal contrast range.
25
CHASSIS LAYOUT
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