SERVICE MODE ...................................................................................................................................................... 8
SETTING & ADJUSTING DATA ..............................................................................................................................16
LOCATION OF CONTROLS ................................................................................................................................... 17
CHASSIS AND CABINET REPLACEMENT PARTS LIST ......................................................................................20
PC BOARDS BOTTOM VIEW................................................................................................................................. 29
TERMINAL VIEW OF TRANSISTORS ................................................................................................................... 34
SPECIFICATIONS .............................................................................................................................................. END
APPENDIX:
CIRCUIT DIAGRAM
– 2 –
Page 3
CHAPTER 1 GENERAL ADJUSTMENTS
SAFETY INSTRUCTIONS
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU-
TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW.
X-RAY RADIATION PRECAUTION
1. Excessive high voltage can produce potentially hazardous
X-RAY RADIATION. To avoid such hazards, the high voltage must not be above the specified limit. The nominal
value of the high voltage of this receiver is (A) kV at zero
beam current (minimum brightness) under a 120V AC
power source. The high voltage must not, under any circumstances, exceed (B) kV.
Refer to table-1 for high voltage (A), (B).
(See SETTING & ADJUSTING DATA on page 16)
Each time a receiver requires servicing, the high voltage
should be checked following the HIGH VOLTAGE CHECK
procedure in this manual. It is recommended that the reading of the high voltage be recorded as a part of the service
record. It is important to use an accurate and reliable high
voltage meter.
SAFETY PRECAUTION
2. This receiver is equipped with a Fail Safe (FS) circuit which
prevents the receiver from producing an excessively high
voltage even if the B+ voltage increases abnormally. Each
time the receiver is serviced, the FS circuit must be checked
to determine that the circuit is properly functioning, following the FS CIRCUIT CHECK procedure in this manual.
3. The only source of X-RAY RADIATION in this TV receiver
is the picture tube. For continued X-RAY RADIATION protection, the replacement tube must be exactly the same
type tube as specified in the parts list.
4. Some part in this receiver have special safety-related characteristics for X-RAY RADIATION protection. For continued safety, parts replacement should be undertaken only
after referring to the PRODUCT SAFETY NOTICE below.
GENERAL ADJUSTMENTS
WARNING : Service should not be attempted by anyone unfamiliar with the necessary precautions on this receiver. The following are the necessary precautions to be observed before
servicing this chassis.
1. An isolation Transformer should be connected in the power
line between the receiver and the AC line before any service is performed on the receiver.
2. Always discharge the picture tube anode to the CRT conductive coating before handling the picture tube. The picture tube is highly evacuated and if broken, glass fragments
will be violently expelled. Use shatter proof goggles and
keep picture tube away from the unprotected body while
handling.
3. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place,
such as; non-metallic control knobs, insulating covers,
shields, isolation resistor-capacitor network etc.
4. Before returning the set to the customer, always perform
an AC leakage current check on the exposed metallic parts
of the cabinet, such as antennas, terminals, screwheads,
metal overlays, control shafts etc. to be sure the set is safe
to operate without danger of electrical shock. Plug the AC
line cord directly into a 120V AC outlet (do not use a line
isolation transformer during this check). Use an AC voltmeter having 5000 ohms per volt or more sensitivity in the
following manner:
Connect a 1500 ohm 10 watt resistor, paralleled by a 0.15
µF, AC type capacitor, between a known good earth ground
(water pipe, conduit, etc.) and the exposed metallic parts,
one at a time. Measure the AC voltage across the combination of 1500 ohm resistor and 0.15 µF capacitor. Reverse the AC plug at the AC outlet and repeat AC voltage
measurements for each exposed metallic part. Voltage
measured must not exceed 0.3 volts rms. This corresponds
to 0.2 milliamp. AC. Any value exceeding this limit constitutes a potential shock hazard and must be corrected immediately.
AC VOLTMETER
0.15µF
Place this probe on
Good earth ground
such as a water
pipe, conduit, etc.
1500 ohm
10 watt
each exposed
metallic part.
SPECIFIC INFORMATIONS
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These characteristics are
often passed unnoticed by a visual inspection and the protection afforded by them cannot necessarily be obtained by using
replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the
international hazard symbols on the schematic diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement
parts which do not have the same safety characteristics as specified in the parts list may create shock, fire, X-ray radiation or other hazards.
– 3 –
Page 4
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU-
TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL.
■ The following adjustments should be made when a complete realignment is required or a new picture tube is installed.
Perform the adjustments in order as follows :
1. Color Purity
2. Convergence
3. White Balance
Note: The PURITY/CONVERGENCE MAGNET assembly and rubber wedges need mechanical positioning.
Refer to figure 1.
GENERAL ADJUSTMENTS
*
COLOR PURITY ADJUSTMENT
NOTE : Before attempting any purity adjustments, the receiver
1. Demagnetize the picture tube and cabinet using a degauss-
2. Set the brightness and contrast to maximum.
3. Use a green raster from among the built-in test signals.
4. Loosen the clamp screw holding the yoke and slide the
SPECIFIC INFORMATIONS
Mounting position of the purity magnet assembly should fit to same position as old one because slightly difference to
the position depend on a kind of tube.
There are no adjustment of purity and convergence in some picture tube (Unified with purity magnet)
should be operated for at least fifteen minutes.
ing coil.
yoke backward or forward to provide vertical green belt
(zone) in the picture screen.
SET-UP ADJUSTMENT (FOR 13”, 14”, 19”, 20”)
5. Remove the Rubber Wedges.
6. Rotate and spread the tabs of the purity magnet (See figure 2.) around the neck of the picture tube until the green
belt is in the center of the screen. At the same time, enter
the raster vertically.
7. Slowly move the yoke forward or backward until a uniform
green screen is obtained. Tighten the clamp screw of the
yoke temporarily.
8. Check the purity of the red and blue raster.
GLASS CLOTH
TAPES
DEFLECTION
YOKE
14mm(13", 14")
19mm(19", 20")
PURITY/
CONVERGENCE
MAGNET ASS'Y
TEMPORARY
MOUNTING
RUBBER WEDGE
ADHESIVE
DEFLECTION
YOKE
Figure 1.
– 4 –
Page 5
CONVERGENCE ADJUSTMENTS
NOTE: Before attempting any convergence adjustments, the
receiver should be operated for at least fifteen minutes.
■ CENTER CONVERGENCE ADJUSTMENT
1. Use the cross-dot pattern from among the built-in test signals.
2. Set the brightness and contrast for well defined pattern.
3. Adjust two tabs of the 4-Pole Magnets to change the angle
between them (See figure 2.) and superimpose red and
blue vertical lines in the center area of the picture screen.
4. Turn the both tabs at the same time keeping the angle
constant to superimpose red and blue horizontal lines at
the center of the screen.
5. Adjust two tabs of 6-Pole Magnets to superimpose red/
blue line and green one. Adjusting the angle affects the
vertical lines and rotating both magnets affects the horizontal lines.
6. Repeat adjustments 3, 4, 5 keeping in mind red, green
and blue movement, because 4-Pole Magnets and 6-Pole
Magnets have mutual interaction and make dot movement
complex.
6-POLE
4-POLE
MAGNETS
MAGNETS
ADJUST THE ANGLE
(VERTICAL LINES)
■ CIRCUMFERENCE CONVERGENCE ADJUSTMENT
1. Loosen the clamping screw of deflection yoke slightly to
allow the yoke to tilt.
2. Temporarily put a wedge as shown in figure 1. (Do not
remove cover paper on adhesive part of the wedge.)
3. Tilt front of the deflection yoke up or down to obtain better
convergence in circumference. (See figure 3.) Push the
mounted wedge into the space between picture tube and
the yoke to fix the yoke temporarily.
4. Put other wedge into bottom space and remove the cover
paper to stick.
5. Tilt front of the yoke right or left to obtain better convergence in circumference. (See figure 3.)
6. Keep the yoke position and put another wedge in either
upper space. Remove cover paper and stick the wedge
on picture tube to fix the yoke.
7. Detach the temporarily mounted wedge and put it in another upper space. Stick it on picture tube to fix the yoke.
8. After fixing three wedges, recheck overall convergence.
Tighten the screw firmly to fix the yoke and check the yoke
is firm.
9. Stick three adhesive tapes on wedges as shown in figure
1.
FIXED
GENERAL ADJUSTMENTS
ROTATE TWO TABS
AT THE SAME TIME
(HORIZONTAL LINES)
PURITY
MAGNETS
CONVERGENCE MAGNET ASSEMBLYADJUSTMENT OF MAGNETS
Figure 2.
BLU RED
BLU
RED
4-POLE MAGNETS MOVEMENT
BGR
R
G
B
RGB
RED/BLU
GRN
Center Convergence by Convergence Magnets
B
G
R
RED/BLU GRN
6-POLE MAGNETS MOVEMENT
B
G
R
BGR
RGB
R
G
B
SPECIFIC INFORMATIONS
INCLINE THE YOKE UP (OR DOWN)
Circumference Convergence by DEF Yoke
Figure 3. Dot Movement Pattern
INCLINE THE YOKE RIGHT (OR LEFT)
– 5 –
Page 6
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU-
TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL.
■ The following adjustments should be made when a complete realignment is required or a new picture tube is installed.
Perform the adjustments in order as follows :
1. Color Purity
2. Convergence
3. White Balance
Note: The PURITY/CONVERGENCE MAGNET assembly and rubber wedges need mechanical positioning.
Refer to figure 1.
GENERAL ADJUSTMENTS
*
Mounting position of the purity magnet assembly should fit to same position as old one because slightly difference to
the position depend on a kind of tube.
There are no adjustment of purity and convergence in some picture tube (Unified with purity magnet)
(FOR 35”, 36”)
COLOR PURITY ADJUSTMENT
NOTE : Before attempting any purity adjustments, the
receiver should be operated for at least fifteen
minutes.
1. Evenly degauss the entire screen.
2. Set the CONTRAST and BRIGHTNESS Controls to
the maximum.
3. Display built-in green raster using the TEST SIGNAL
SELECTION function.
4. Loosen the clamp screw holding the deflection yoke
SPECIFIC INFORMATIONS
(and remove the Rubber Wedges).
5. Slide the yoke forward or backward to provide vertical
green belt (zone) in the picture screen.
6. Rotate and spread the tabs of the purity magnet (See
figure 3.) around the neck of the picture tube until the
green belt is in the center of the screen. At the same
time, center the raster vertically by adjusting the magnet as shown below.
Figure 1.
Xv Coil
DEFLECTION YOKE
1-5/8”
PURITY/
CONV.
MAGNET
RUBBER WEDGES
Adhesive
Green Belt
7. Move the yoke slowly forward or backward until a uniform green screen is obtained. Tighten the clamp screw
of the yoke temporarily.
8. Check the purity of the red and blue raster.
9. Put four wedges into the space between the picture
tube and the yoke to hold the yoke in the adjusted position. (See figure 2.)
Do not tilt the yoke by excessive insertion of the wedge.
10. Remove cover paper of wedge and stick wedges on
the tube to fix the yoke in the adjusted position.
Fix the wedges with glass cloth tapes.
DEFLECTION
YOKE
Figure 2.
– 6 –
Page 7
CONVERGENCE ADJUSTMENTS
NOTE: Before attempting any convergence adjustments,
the receiver should be operated for at least fifteen
minutes.
■ CENTER CONVERGENCE ADJUSTMENT
1. Display built-in cross-dot pattern using the TEST SIGNAL SELECTION function.
2. Adjust the BRIGHTNESS and CONTRAST Controls
for well defined pattern.
3. Loosen the tightening ring and adjust two tabs of the
4-Pole Magnets to change the angle between them
(See figure 3.) and superimpose red and blue vertical
lines in the center area of the picture screen.
(See figure 4.)
4. Turn the both tabs at the same time keeping the constant angle to superimpose red and blue horizontal lines
at the centre of the screen. (See figure 4.)
5. Adjust two tabs of 6-Pole Magnets to superimpose red/
blue line with green one. Adjusting the angle affects
the vertical lines and rotating both magnets affects the
horizontal lines.
6. Repeat adjustments 3, 4, 5 keeping in mind red, green
and blue movement, because 4-Pole Magnets and 6Pole magnets interact and make dot movement complex.
7. After completing the “CENTER CONVERGENCE ADJUSTMENT” tighten the tightening ring to fix the magnets.
BLU RED
RED/BLUE GRN
6-POLE
MAGNETS
PURITY
MAGNETS
ADJUST THE ANGLE
(VERTICAL LINES)
ADJUSTMENT OF MAGNETS
4-POLE
MAGNETS
PURITY/CONVERGENCE
MAGNETS
FIXED
ROTATE TWO TABS
AT THE SAME TIME
(HORIZONTAL LINES)
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
BLU
RED
4-POLE MAGNETS
MOVEMENT
Center Convergence by Convergence Magnets
■ Xv COIL ADJUSTMENT
Adjust the Xv coil (on the deflection yoke) to correct
misconvergence at both sides on screen.
Use a hexagonal tip stick (plastic) to adjust the core of coil.
Clockwise AdjustmentCounterclockwise Adjustment
Clockwise Adjustment
R
B
RED/BLUE
Figure 4.
B
R
GRN
6-POLE MAGNETS
MOVEMENT
Counterclockwise Adjustment
B
R
Figure 3.
■ SCREEN-CORNER CONVERGENCE
When the misconvergence is still evident on corners even
though the above adjustment is done, use the ferrite sheet
(Part No. 23993622) to correct misconvergence.
1. Put ferrite sheets into the space under the yoke.
Decide such position that misconvergence becomes
minimum, watching picture screen. (See figure below.)
2. Remove cover paper of ferrite sheet to stick it in the
place on the tube. Put adhesive tapes on ferrite sheets
to fix.
Ferrite
Sheets
R
B
A
Ferrite
Sheets
XV Cross Pattern View
Xv Cross Pattern View
For correcting misconvergence
on the position A
– 7 –
Page 8
1. ENTERING TO SERVICE MODE
1) Press MUTE button once
on Remote Control.
MUTE
SERVICE MODE
2) Press MUTE button
again to keep pressing.
3) While pressing the MUTE button,
press MENU button on TV set.
S
(Service mode display)
GENERAL ADJUSTMENTS
2. DISPLAYING THE ADJUSTMENT MENU
1) Press MENU button on TV.
Service mode
3. KEY FUNCTION IN THE SERVICE MODE
The following key entry during display of adjustment menu provides special functions.
SPECIFIC INFORMATIONS
A single horizontal line ON/OFF:TV (ANT)/VIDEO button (on TV)
Test signal selection :TV (ANT)/VIDEO button (on Remote)
Selection of the adjustment items :Channel s/t (on TV or Remote)
Change of the data value :Volume s/t (on TV or Remote)
Adjustment menu mode ON/OFF :MENU button (on TV)
Initialization of the memory (QA02) :RECALL+Channel button on TV (s)
Initialization of the self diagnostic data:RECALL+Channel button on TV (t)
1)Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2.
(t button for reverse order)
Refer to table-2 for preset data of adjustment mode.
(See SETTING & ADJUSTING DATA on page 16)
5. ADJUSTING THE DATA
1) Pressing of VOLUME s or t button will change the value of data in the range from 00H to FFH. The variable range
depends on the adjusting item.
6. EXIT FROM SERVICE MODE
1) Pressing POWER button to turn off the TV once.
■ INITIALIZATION OF MEMORY DATA OF QA02
After replacing QA02, the following initialization is required.
1. Enter the service mode, then select any register item.
2. Press and hold the RECALL button on the Remote, then press the CHANNEL s button on the TV. The initialization of QA02
has been complated.
3. Check the picture carefully. If necessary, adjust any adjustment item above.
Perform “Programming Channel Memory” on the owner’s manual.
CAUTION: Never attempt to initialize the data unless QA02 has been replaced.
7. TEST SIGNAL SELECTION
1) Every pressing of TV/VIDEO button on the Remote Control in the Service mode, changes the built-in test patterns
on screen in the following order.
GENERAL ADJUSTMENTS
Normal pictureBlack cross-bar
on green raster
Red raster
Green raster
Blue raster
All black
All white
White and black
Black cross-bar
White cross-bar
Note: If the video cable is connected to the VIDEO1 INPUT jack, the
built-in pattern signals are not displayed.
H signal (black)
H signal (white)
White cross-dot
Black cross-dot
White cross-hatch
Black cross-hatch
SignalsPicture
• Red raster
• Green raster
• Blue raster
• All Black
• All White
• Black & White
• Black cross-bar
• White cross-bar
• Black cross-bar
on green raster
• Black cross-hatch
• White cross-hatch
• Black cross-dot
• White cross-dot
SPECIFIC INFORMATIONS
The signals marked with are not usable to display in the Test signal for some model.
*
– 9 –
• H signal (white)
• H signal (black)
Page 10
8. SELF DIAGNOSTIC FUNCTION
1) Press “9” button on Remote Control during display of adjustment menu in the service mode.
The diagnosis will begin to check if interface among IC’s are executed properly.
2) During diagnosis, the following displays are shown.
SELF CHECK
NO. 23 * * * * * *
POWER : 000
BUS LINE : OK
BUS CONT : OK
BLOCK : UV V1 V2
or QV01 QV01S
SYNC
GENERAL ADJUSTMENTS
Part number of microprocessor (QA01)
Operation number of protection circuit (current limiter) . . . . “000” is normal.
BUS line check“OK” ................... Normal
BUS line ACK (acknowledge) check
SPECIFIC INFORMATIONS
Sync. signal checkGreen display ..... Normal
“NG” ................... SCL-GND
or SAD-GND short circuit
“OK” ..................... Normal
Display of Location Number . . . . NG
(Display example)
“QA02 NG”, “H001 NG”, “Q501 NG” etc.
Note: The indication of failure place is only one place though failure places are plural. When
repair of a failure place finishes, the next failure place is indicated. (The order of priority of
indication is left side.)
Cyan display ...... No check
Red display ........ NG
UV ........... TV mode
V1............ VIDEO 1 mode
V2............ VIDEO 2 mode
The item marked with are not usable to display in the SELF DIAGNOSTIC FUNCTION for some model.
*
– 10 –
Page 11
1. ENTERING TO DESIGN MODE
1) Select the Service mode.
DESIGN MODE
2) While pressing RECALL button on
Remote and press MENU button on TV.
3) Press MENU button on TV.
SD
(Design mode)(Adjustment mode)
When QA02 is initialized, items “OPT0” and “OPT1” and "OPT2" of DESIGN MODE are set to the data of the representative
model of this chassis family.
Therefore, because ON-SCREEN specification remains in the state of the representative of model. This model is required to
reset the data of items “OPT0” and “OPT1” and "OPT2".
2. SELECTING THE ADJUSTING ITEMS
Every pressing of CHANNEL t button in the design mode changes the adjustment items in the order of table-3.
(s button for reverse order)
Refer to table-3 for data of design mode.
(See SETTING & ADJUSTING DATA on page 16)
3. ADJUSTING THE DATA
Pressing of VOLUME s or t button will change the value of data.
Press
Press
Item
Data
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
– 11 –
Page 12
ELECTRICAL ADJUSTMENT
ITEMADJUSTMENT PROCEDURE
FOCUS VR ADJ
SUB-BRIGHTNESS
(BRTC)
GENERAL ADJUSTMENTS
SUB-COLOR
(COLC)
SUB-TINT
(TNTC)
SPECIFIC INFORMATIONS
1. Enter the service mode, then select any register item.
2. Press the TV/VIDEO button on the Remote until the black cross-bar pattern appears on the screen.
3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture
screen.
1. Constrict the picture height until the
vertical retrace line appears adjusting
the HEIGHT control on the MAIN board.
2. Adjust the CONTRAST to the minimum
and BRIGHTNESS to the center.
3. Enter the service mode, then select
“BRTC” register.
4. Adjust the data value so the belt of
vertical retrace line just disappear.
5. Adjust the CONTRAST for the desired
contrast.
6. Adjust the HEIGHT control.
Vertical retrace line
1. Receive color-bar signal from color-bar generator.
2. Press the RESET button.
3. Connect oscilloscope to base of Q906 on CRT-D board.
4. Enter the service mode, then select “COLC”.
5. Adjust the SUB-COLOR by pressing the
VOLUME s or t button to achieve about
1V0-p of blue bar.
6. Select “TNTC” register.
7. Adjust the data value to obtain the blue
bar to magenta bar ratio of 3:2 as shown.
Magenta
0
Blue
2
3 (1.8V
8. Select “COLC” register.
9. Adjust the data value to achieve 1.8V0-p
of blue bar on scope.
10. Check the picture with off-air signal.
0-P
)
WIDTH
(WID)
E-W PARABOLA
(DPC)
1. Call up the adjustment mode display, then select the item WID.
2. Press the VOLUME s or t button to get the picture so the left and right edges of
raster begins to lack.
3. Press the VOLUME s or t button to advance the data by 7 steps.
Note : Check the horizontal picture position is correct.
1. Call up the adjustment mode display, then select the item DPC.
2. Press the TV/VIDEO button on Remote until the cross-hatch pattern appears on
the screen.
3. Press the VOLUME s or t button to make vertical lines straight as shown
below.
– 12 –
Page 13
ITEMADJUSTMENT PROCEDURE
HORIZONTAL POSITION
(HPOS)
VERTICAL POSITION
(VPOS)
HEIGHT
(HIT)
WHITE BALANCE
(RCUT)
(GCUT)
(BCUT)
(GDRV)
(BDRV)
1. Call up the adjustment mode display, then select the item HPOS or VPOS.
2. Press the TV/VIDEO button on Remote until the
white cross-bar or black cross-bar pattern appears
on the screen.
3. Adjust the HORIZONTAL and VERTICAL position
alternately by pressing the VOLUME s or t button
for proper picture position.
4. Check the picture with off-air signal.
1. Call up the adjustment mode display, then select the item HIT.
2. Press the VOLUME s or t button to get the picture so the top of raster begins
to lack.
3. Press the VOLUME s button to advance the data by 9 steps.
Note : Check the vertical picture position is correct.
1. Adjust the CONTRAST control to the center, and BRIGHTNESS control to the
maximum.
2. Call up the adjustment mode display, and press the TV/VIDEO button on
Remote until the white and black pattern appears on the screen.
3. Adjust the following item with the CHANNEL s/t and VOLUME s/t buttons.
RCUT
GCUT
BCUT
4. Press the TV/VIDEO button on TV to display a single horizontal line on the
screen.
5. Turn the SCREEN control (FBT) fully counterclockwise and gradually rotate
clockwise until the first horizontal line appears slightly on the screen.
6. Press the TV/VIDEO button to display the normal picture.
7. Adjust the remaining two “?CUT” items (CHANNEL s/t → TV/VIDEO →
VOLUME s/t in order) to obtain the slightly lighted horizontal line in the same
levels of three (red, green, blue) colors. The line should be white if the adjustments are proper.
Data : 40H
Data : 40H
Data : 40H
GDRV Data : 40H
BDRV Data : 40H
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
PIP SUB-BRIGHTNESS
(PBOF)
PIP WHITE BALANCE
(PGOF, PROF)
PIP SUB-TINT
(PHUE)
Bright area
Adjust "GDRV" or "BDRV" to be white.
Dark area
Fine adjust "RCUT", "GCUT" or "BCUT" to be black.
Adjust to match the PIP screen to the brightness, white balance and tint of the
main picture.
– 13 –
Page 14
MTS ADJUSTMENT (FOR N2N, N2F, N2ES, N2S CHASSIS)
No.ITEMINPUT SIGNALADJUSTMENT PROCEDURE
1
ATTENUATOR
(ATT)
2
STEREO VCO
(STVC)
GENERAL ADJUSTMENTS
3
STEREO FILTER
(STRF)
SPECIFIC INFORMATIONS
• 1kHz 30% mod. → ANT
terminal
1. Connect rms meter to pin 34 of QG01.
2. Display item AT T on screen.
3. Change data by VOLUME s/t buttons so
that the reading of meter becomes value
as close as 137mVrms.
• No signal1. Short circuit RG44 with a jumper wire.
H001
14
QG01
2. Display item STVC on screen.
3. Connect frequency counter to pin 34 of
QG01.
4. Change data by VOLUME s/t buttons so
+
CG44
RG43
CG07
RG44
7
+
that the reading of counter becomes value
as close as 15.73kHz.
5. Remove the short jumper from RG44.
(1)Jumper wire
• 15.734kHz 30mV(rms) →
Across Point between CG07
and RG44
H001
15.734KHz 30mV(rms)
14
SL02
(1)
+
CG44
RG43
CG07
+
RG44
QG01
7
1. Unsolder the solder link SL02.
2. Display item STRF on screen.
3. Connect oscilloscope to pin 34 of QG01.
4. Change data by VOLUME s/t button to
minimize AC output level on scope.
5. Resolder SL02.
4
STEREO SEPARATION
(WBAN)
(SPEC)
SAP VCO
5
(SAVC)
• STEREO 300Hz (30% mod.)
R-channel only → ANT
• STEREO 3kHz (30% mod.)
R-channel only → ANT
• No signal
H001
(2)
QG01
14
12
1M
++
CG44 RG43
CG07
7
(1) Jumper
wire
RG44
1. Display item WBAN on screen.
2. Connect oscilloscope to pin 35 of QG01.
3. Change data by VOLUME s/t buttons so
that 300Hz element on scope becomes
minimum.
1. Display item SPEC on screen.
2. Connect oscilloscope to pin 35 of QG01.
3. Change data by VOLUME s/t buttons so
that 3KHz element on scope becomes
minimum.
1. Shortcircuit RG44 with a short jumper.
2. Connect 1Mohm resistor between pin 12 of
QG01 and ground.
3. Display item SAVC on screen.
4. Connect frequency counter to pin 34 of
QG01.
5. Change data by VOLUME s/t buttons so
that the reading of counter becomes value
as close as 78.67kHz.
6. Remove the short jumper and 1M ohm
resistor.
– 14 –
Page 15
CIRCUIT CHECKS
HIGH VOLTAGE CHECK
CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on
this chassis. Checking should be done following the steps
below.
1. Connect an accurate high voltage meter to the second anode of the picture tube.
2. Turn on the receiver. Set the BRIGHTNESS and CONTRAST controls to minimum (zero beam current).
3. High voltage must be measured below (B) kV.
Refer to table-1 for high voltage (B).
(See SETTING & ADJUSTING DATA on page 16)
4. Vary the BRIGHTNESS control to both extremes to be sure
the high voltage does not exceed the limit under any conditions.
FS CIRCUIT CHECK
The Fail Safe (FS) circuit check is indispensable for the final
check in servicing. Checking should be done following the
steps below.
1. Turn the receiver on and press the RESET button.
2. Temporarily short TP-(R) and TP-(X) with a jumper wire.
Raster and sound will disappear.
3. The receiver must remain in this state even after removing
the jumper wire. This is the evidence that the FS circuit is
functioning properly.
4. To obtain a picture again, temporarily turn the receiver off
and allow the FS circuit more than 5 seconds to reset. Then
turn the power switch on to produce a normal picture.
Troubleshooting Guide for Fail Safe Circuit
Check that the set returns to normal operation when pin 12
of Z801(or emitter of Q472) is grounded with jumper wire.
YESNO
Check the voltage across
Capacitor C471 is
approximately (C) volts.
Refer to table –4 for
fail safe voltage (C) .
YES
Defective Fail Safe Circuit
(See SETTING & ADJUSTING
DATA on page16)
NO
Faulty power
circuit or horizontal circuit.
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
– 15 –
Page 16
CHAPTER 2 SPECIFIC INFORMATIONS
SETTING & ADJUSTING DATA
SAFETY INSTRUCTIONS
HIGH VOLTAGE AT ZERO BEAM:(A)31.6kV
MAX HIGH VOLTAGE:
The channel memory is the list of TV channel numbers your TV will stop on when you press the CHANNEL s or t button.
First, use the TV/CABLE and CH PROGRAM functions to preset all active channels in your area automatically.
If necessary, arrange the preset channels with the ADD/ERASE functions so that you can tune into only desired channels.
Note: If you utilize both ANT-1 and ANT-2 terminals for some model, perform programming channels for each input source.
TV/CABLE function
Press MENU, then press S or T until the SET UP menu
1
appears.
Press t (or s) until “TV/CABLE” is highlighted.
2
Press S or T to highlight either “TV” or “CABLE”, which-
3
ever you use.
CH PROGRAM function
Select “CH PROGRAM” following steps 1 and 2 above.
1
Press S or T to start channel programming.
2
The TV will automatically cycle through all the TV or CABLE channels selected by the TV/CABLE function, and
store active channels in the channel memory.
When channel programming is complete, you will see the
3
message to the right appears.
Press CHANNELs or t to make sure the channel pro-
4
gramming has been done properly.
ADD/ERASE function
After performing the CH PROGRAM function, you can add or
erase specific channels.
Select the channel you want to erase using the CHAN-
1
NEL s or t button, or select the channel you want to add
using the Channel Number buttons.
Press MENU, then press S or T until the SET UP menu
2
appears.
Press t (or s) until “ADD/ERASE” is highlighted.
3
Press S or T :
4
To erase the channel
Press the button until “ERASE” is highlighted.
To add the channel
Press the button until “ADD” is highlighted.
Repeat steps 1 to 4 for other channels.
5
You have now completed the channel programming.
Note: The CHANNEL t/s buttons on the TV function as the
t/s buttons while a menu is on the screen.
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
*Please refer to owner's manual in detil.
– 19 –
Page 20
CHASSIS AND CABINET REPLACEMENT PARTS LIST
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY
PRECAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL.
CAUTION: The international hazard symbols “” in the schematic diagram and the parts list designate com-
ponents which have special characteristics important for safety and should be replaced only with types identical to
those in the original circuit or specified in the parts list. The mounting position of replacements is to be identical with
originals. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE. Do not
degrade the safety of the receiver through improper servicing.
NOTICE:
•
The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model
number and Description.
•
The PC board assembly with * mark is no longer available after the end of the production.
Resistors ............... CF:Carbon FilmCC : Carbon CompositionMF : Metal Film
OMF :Oxide Metal FilmVR : Variable ResistorFR: Fusible Resistor
(All CD and PF capacitors are ±5%, 50V and all resistors, ±5%, 1/6W unless otherwise noted.)
Location
Parts No.Description
No.
CAPACITORS
C10224793221ELECTROLYTIC, 10V 220UF M
C10524212102CERAMIC DISC, 50V B 1000PF K
SPECIFIC INFORMATIONS
C10624797479ELECTROLYTIC, 50V 4.7UF M
C10724763221ELECTROLYTIC, 16V 220UF M
C11224793221ELECTROLYTIC, 10V 220UF M
C11524212102CERAMIC DISC, 50V B 1000PF K
C11724763221ELECTROLYTIC, 16V 220UF M
C20124503041PLASTIC FILM , 63V 0.1UF J
C20424797010ELECTROLYTIC, 50V 1UF M
C20524794100ELECTROLYTIC, 16V 10UF M
C20724436270CERAMIC DISC, 50V SL 27PFJ
C20824436270CERAMIC DISC, 50V SL 27PFJ
C20924436270CERAMIC DISC, 50V SL 27PFJ
C21324503041PLASTIC FILM , 63V 0.1UF J
C21624797100ELECTROLYTIC, 50V 10UF M
C22024539474PLASTIC FILM, 50V 0.47UF J
C22124232103CERAMIC DISC, 50V F 10000PF Z
C22224232103CERAMIC DISC, 50V F 10000PF Z
C22324232103CERAMIC DISC, 50V F 10000PF Z
C22424503041PLASTIC FILM , 63V 0.1UF J
C22524503041PLASTIC FILM , 63V 0.1UF J
C22624503041PLASTIC FILM , 63V 0.1UF J
C24524232103CERAMIC DISC, 50V F 10000PF Z
C26124503041PLASTIC FILM , 63V 0.1UF J
C26224503041PLASTIC FILM , 63V 0.1UF J
C26324503041PLASTIC FILM , 63V 0.1UF J
C27124436561CERAMIC DISC, 50V SL 560PF J
C30124214471CERAMIC DISC, 500V B 470PF K
C30424693473PLASTIC FILM, 100V 0.047UF J
C30524617912ELECTROLYTIC, 50V 2.2UF K 3A LI
C30624073059ELECTROLYTIC, 25V 3300UF M 3A
C30824669221ELECTROLYTIC, 50V 220UF M 3A
C30924436101CERAMIC DISC CC45 SL 50V100PF J
C31024073094ELECTROLYTIC, 50V 1000UF M 3A
C31224503041PLASTIC FILM , 63V 0.1UF J
C31324082057PLASTIC FILM, 100V 220000PF J
C31724214471CERAMIC DISC, 500V B 470PF K
C31924212102CERAMIC DISC, 50V B 1000PF K
Location
* C44224082924PLASTIC FILM CF92 T 315V 0.56UF J
* C44424082964PLASTIC FILM, 1500VH 10000PF H
Parts No.Description
No.
C32024669101ELECTROLYTIC, 50V 100UF M 3A
C32324567474PLASTIC FILM, 50V 0.47UF J
C32424503037MT PLA CAP 63V 0.047UF J
C32524503039MT PLA CAP 63V 0.068UF J
C32624503041PLASTIC FILM , 63V 0.1UF J
C32724617915ELECTROLYTIC, 50V 1UF K 3A LI
C33724797229ELECTROLYTIC, 50V 2.2UF M
C36024793221ELECTROLYTIC, 10V 220UF M
C36124794101ELECTROLYTIC, 16V 100UF M
C37024668101ELECTROLYTIC, 35V 100UF M 3A
C37124668100ELECTROLYTIC, 35V 10UF M 3A
C40024503041PLASTIC FILM , 63V 0.1UF J
C40324591103PLASTIC FILM, 50V 0.01UF J
C40424797010ELECTROLYTIC, 50V 1UF M
C40724503041PLASTIC FILM , 63V 0.1UF J
C40824591273PLASTIC FILM, 50V 0.027UF J
C40924763221ELECTROLYTIC, 16V 220UF M
C41024232103CERAMIC DISC, 50V F 10000PF Z
C41324214821CERAMIC DISC, 500V B 820PF K
C41524539224PLASTIC FILM, 50V 0.22UF J
C41624678229ELECTROLYTIC, 200V 2.2UF M 3A
C41724214391CERAMIC DISC, 500V B 390PF K
C43024232103CERAMIC DISC, 50V F 10000PF Z
C43124794101ELECTROLYTIC, 16V 100UF M
C43924503125PLASTIC CAP T 400V 753J
C44124082925PLASTIC FILM CF92 T 315V 0.62UF J
C44324082963PLASTIC FILM, 1500VH 9100PF H
C44524828563PLASTIC FILM, 200V 56000PF J
C44624679100ELECTROLYTIC, 250V 10UF M 3A
C44724214471CERAMIC DISC, 500V B 470PF K
C44824640908ELECTROLYTIC, 160V 33UF M 3A LI
C44924666102ELECTROLYTIC, 16V 1000UF M 3A
C45124085981ELEC. NONPOLAR CE04J 16V 10UF M 11L NP
C45324092344CERAMIC DISC, 2KV 820PF K
C45724591332PLASTIC FILM, 50V 3300PF J
C45724591562PLASTIC FILM, 50V 5600PF J
C46324212222CERAMIC DISK CK45 B 50V 2200PF K
– 20 –
Page 21
Location
* C46724082095PLASTIC FILM, 630V 0.018UF
Parts No.Description
No.
C46424640872ELECTROLYTIC CE04R 100V 10UF M 3A
C46924082095PLASTIC FILM, 630V 0.018UF
C47124797479ELECTROLYTIC, 50V 4.7UF M
C47324797479ELECTROLYTIC, 50V 4.7UF M
C47424797479ELECTROLYTIC, 50V 4.7UF M
C48024747220ELECTROLYTIC CE04HS 50V 22UF M 7L 3A
C48124503049PLASTIC FILM, 63V 0.47UF J
C48224797478ELECTROLYTIC, 50V 0.47UF M
C49924212102CERAMIC DISC, 50V B 1000PF K
C50124436102CERAMIC DISC, 50V SL 1000PF J
C50424591222PLASTIC FILM, 50V 2200PF J
C50524353120CERAMIC DISC, 50V CH 12PF J
C51024763101ELECTROLYTIC, 16V 100UF M
C51124232103CERAMIC DISC, 50V F 10000PF Z
C51224206228ELECTROLYTIC, 50V 0.22UF M 7L 3A
C58224232103CERAMIC DISC, 50V F 10000PF Z
C58324762471ELECTROLYTIC, 10V 470UF M
C61224794470ELECTORLYTIC, 16V 47UF M
C61324232103CERAMIC DISC, 50V F 10000PF Z
C66124212102CERAMIC DISC, 50V B 1000PF K
C66224212102CERAMIC DISC, 50V B 1000PF K
C66324666100ELECTROLYTIC, 10V 10UF M 3A
C67124795470ELECTROLYTIC, 25V 47UF M
C67224795470ELECTROLYTIC, 25V 47UF M
C67324669229ELECTROLYTIC, 50V 2.2UF M 3A
C67424669479ELECTROLYTIC, 50V 4.7UF M 3A
C67524669479ELECTROLYTIC, 50V 4.7UF M 3A
C67624503041PLASTIC FILM , 63V 0.1UF J
C67724503041PLASTIC FILM , 63V 0.1UF J
C67824669229ELECTROLYTIC, 50V 2.2UF M 3A
C67924795470ELECTROLYTIC, 25V 47UF M
C68124667102ELECTROLYTIC, 25V 1000UF M 3A
C68224668471ELECTROLYTIC, 35V 470UF M 3A
C68324667102ELECTROLYTIC, 25V 1000UF M 3A
C80124503002PLASTIC FILM, AC275V 0.22UF M
C80224503001PLASTIC FILM, AC275V 0.1UF M
C80524092623CERAMIC DISC CKS45F 250V 10000PFZ
C80624092623CERAMIC DISC CKS45F 250V 10000PFZ
C80824669470ELECTROLYTIC, 50V 47UF M 3A
C81024086061ELECTROLYTIC, 200V 470UF M 3F
C81124092583CERAMIC DISC, AC250V E 2200PF M
C81224092583CERAMIC DISC, AC250V E 2200PF M
C81324092583CERAMIC DISC, AC250V E 2200PF M
C81724092339CERAMIC DISC, 2KV 330PF K
C81824082402PLASTIC FILM, 1250VH 2200PF H
C82124214471CERAMIC DISC, 500V B 470PF K
C82324212471CERAMIC DISC, 50V B 470PF K
C82924591222PLASTIC FILM, 50V 2200PF J
C83024503047PLASTIC FILM, 63V 0.33UF J
C83124503047PLASTIC FILM, 63V 0.33UF J
C83224794470ELECTORLYTIC, 16V 47UF M
C84024795221ELECTROLYTIC, 25V 220UF M
C84224792101ELECTROLYTIC, 6.3V 100UF M
C84324797479ELECTROLYTIC, 50V 4.7UF M
C88424640018ELECTROLYTIC, 160V 220UF
C88624214471CERAMIC DISC, 500V B 470PF K
C88924796222ELECTROLYTIC, 35V 2200UF M
C89324092339CERAMIC DISC, 2KV 330PF K
C89824503047PLASTIC FILM, 63V 0.33UF J
C90224092345CERAMIC DISC, 2KV 0.001UF K
C90424436391CERAMIC DISC, 50V SL 390PF J
C90524436391CERAMIC DISC, 50V SL 390PF J
C90724436391CERAMIC DISC, 50V SL 390PF J
C90924679220ELECTROLYTIC, 250V 22UF M 3A
Location
Parts No.Description
No.
C91024797478ELECTROLYTIC, 50V 0.47UF M
C91124794100ELECTROLYTIC, 16V 10UF M
C91224763471ELECTROLYTIC, 16V 470UF M
C91324794100ELECTROLYTIC, 16V 10UF M
C91424232103CERAMIC DISC, 50V F 10000PF Z
C92024214101CERAMIC DISC, 500V B 100PF K
C92124232103CERAMIC DISC, 50V F 10000PF Z
C92224232103CERAMIC DISC, 50V F 10000PF Z
CA1324436470CERAMIC DISC, 50V SL 47PF J
CA3324232103CERAMIC DISC, 50V F 10000PF Z
CA3624212101CERAMIC DISC, 50V B 100PF K
CA3724212101CERAMIC DISC, 50V B 100PF K
CA3824212101CERAMIC DISC, 50V B 100PF K
CA4224794100ELECTROLYTIC, 16V 10UF M
CA4324232103CERAMIC DISC, 50V F 10000PF Z
CA4424232103CERAMIC DISC, 50V F 10000PF Z
CA6824794100ELECTROLYTIC, 16V 10UF M
CA6924232103CERAMIC DISC, 50V F 10000PF Z
CB0124797470ELECTROLYTIC, 50V 47UF M
CB4124763221ELECTROLYTIC, 16V 220UF M
CB4824436101CERAMIC DISC CC45 SL 50V100PF J
CG02 24794220ELECTROLYTIC, 16V 22UF M
CG03 24503041PLASTIC FILM , 63V 0.1UF J
CG05 24797010ELECTROLYTIC, 50V 1UF M
CG06 24797479ELECTROLYTIC, 50V 4.7UF M
CG07 24797229ELECTROLYTIC, 50V 2.2UF M
CG08 24503037MT PLA CAP 63V 0.047UF J
CG09 24797478ELECTROLYTIC, 50V 0.47UF M
CG10 24503041PLASTIC FILM , 63V 0.1UF J
CG12 24206108ELECTROLYTIC, 50V 0.1UF M 7L 3A
CG13 24704335TA SOLID ELEC.CS15H 16V 3.3UF M
CG14 24797010ELECTROLYTIC, 50V 1UF M
CG16 24704106TA SOLID ELEC.CS15H 16V 10UF M
CG17 24797010ELECTROLYTIC, 50V 1UF M
CG18 24797010ELECTROLYTIC, 50V 1UF M
CG19 24797479ELECTROLYTIC, 50V 4.7UF M
CG20 24797010ELECTROLYTIC, 50V 1UF M
CG27 24591223PLASTIC FILM, 50V 0.022MF J
CG28 24797229ELECTROLYTIC, 50V 2.2UF M
CG29 24591102PLASTIC FILM, 50V 1000PF J
CG30 24206108ELECTROLYTIC, 50V 0.1UF M 7L 3A
CG31 24797229ELECTROLYTIC, 50V 2.2UF M
CG32 24591102PLASTIC FILM, 50V 1000PF J
CG33 24206108ELECTROLYTIC, 50V 0.1UF M 7L 3A
CG37 24206229ELECTROLYTIC, 50V 2.2UF M 7L 3A
CG38 24206229ELECTROLYTIC, 50V 2.2UF M 7L 3A
CG42 24797010ELECTROLYTIC, 50V 1UF M
CG44 24794100ELECTROLYTIC, 16V 10UF M
CG46 24794101ELECTROLYTIC, 16V 100UF M
CM51 24503041PLASTIC FILM , 63V 0.1UF J
CM58 24503041PLASTIC FILM , 63V 0.1UF J
CR0124503041PLASTIC FILM , 63V 0.1UF J
CR0224503041PLASTIC FILM , 63V 0.1UF J
CR0324503041PLASTIC FILM , 63V 0.1UF J
CS0224797229ELECTROLYTIC, 50V 2.2UF M
CS0424797229ELECTROLYTIC, 50V 2.2UF M
CS0824797229ELECTROLYTIC, 50V 2.2UF M
CS1024797229ELECTROLYTIC, 50V 2.2UF M
CS1424797229ELECTROLYTIC, 50V 2.2UF M
CS1624797229ELECTROLYTIC, 50V 2.2UF M
CS2524797229ELECTROLYTIC, 50V 2.2UF M
CS2624797229ELECTROLYTIC, 50V 2.2UF M
CS4024797010ELECTROLYTIC, 50V 1UF M
CS4224797010ELECTROLYTIC, 50V 1UF M
CS4324436331CERAMIC DISC, 50V SL 330PF J
SPECIFIC INFORMATIONS
– 21 –
Page 22
Location
SPECIFIC INFORMATIONS
Parts No.Description
No.
CS4424436331CERAMIC DISC, 50V SL 330PF J
CS4524436331CERAMIC DISC, 50V SL 330PF J
CS4624436331CERAMIC DISC, 50V SL 330PF J
CS4724436331CERAMIC DISC, 50V SL 330PF J
CS4824436331CERAMIC DISC, 50V SL 330PF J
CS4924436331CERAMIC DISC, 50V SL 330PF J
CS5024436331CERAMIC DISC, 50V SL 330PF J
CS5124212102CERAMIC DISC, 50V B 1000PF K
CS5224212102CERAMIC DISC, 50V B 1000PF K
CS7024794220ELECTROLYTIC, 16V 22UF M
CS7124794220ELECTROLYTIC, 16V 22UF M
CS115 24797010ELECTROLYTIC, 50V 1UF M
CS116 24797010ELECTROLYTIC, 50V 1UF M
CS118 24794470ELECTORLYTIC, 16V 47UF M
CS120 24797010ELECTROLYTIC, 50V 1UF M
CS625 24797479ELECTROLYTIC, 50V 4.7UF M
CS626 24797479ELECTROLYTIC, 50V 4.7UF M
CS627 24797479ELECTROLYTIC, 50V 4.7UF M
CS628 24797479ELECTROLYTIC, 50V 4.7UF M
CS630 24794101ELECTROLYTIC, 16V 100UF M
CV0324206108ELECTROLYTIC, 50V 0.1UF M 7L 3A
CV0524232103CERAMIC DISC, 50V F 10000PF Z
CV0924503041PLASTIC FILM , 63V 0.1UF J
CV1324206108ELECTROLYTIC, 50V 0.1UF M 7L 3A
CV1524232103CERAMIC DISC, 50V F 10000PF Z
CV2424591473PLASTIC FILM, 50V 0.047UF J
CV2524794220ELECTROLYTIC, 16V 22UF M
CV2724206108ELECTROLYTIC, 50V 0.1UF M 7L 3A
CV2924232103CERAMIC DISC, 50V F 10000PF Z
CV3124503041PLASTIC FILM , 63V 0.1UF J
CV3824763471ELECTROLYTIC, 16V 470UF M
CV3924232103CERAMIC DISC, 50V F 10000PF Z
CV4124591223PLASTIC FILM, 50V 0.022MF J
CV4524232103CERAMIC DISC, 50V F 10000PF Z
CV4624794101ELECTROLYTIC, 16V 100UF M
CV4724794100ELECTROLYTIC, 16V 10UF M
CV4824232103CERAMIC DISC, 50V F 10000PF Z
CV4924794100ELECTROLYTIC, 16V 10UF M
CV6024763471ELECTROLYTIC, 16V 470UF M
CV6124762471ELECTROLYTIC, 10V 470UF M
CZ0324092743CERAMIC CHIP, 10V F 470NF Z
CZ0524109103CERAMIC CHIP, 50V B 10000PF K
CZ0724092730CERAMIC CHIP, 16V B 0.1UF K
CZ0924105220CERAMIC CHIP, 50V CH 22PF J
CZ1024105100CERAMIC CHIP, 50V CH 10PF D
CZ1124105220CERAMIC CHIP, 50V CH 22PF J
CZ1224109103CERAMIC CHIP, 50V B 10000PF K
CZ1324109103CERAMIC CHIP, 50V B 10000PF K
CZ1424203100ELECTORLYTIC, 16V 10UF M 7L 3A
CZ1724109103CERAMIC CHIP, 50V B 10000PF K
CZ1924105181CERAMIC CHIP, 50V CH 180PF J
CZ2024109103CERAMIC CHIP, 50V B 10000PF K
CZ2124109122CERAMIC CHIP CC73B 50V 1200PF K
CZ2224203100ELECTORLYTIC, 16V 10UF M 7L 3A
CZ2324109103CERAMIC CHIP, 50V B 10000PF K
CZ2424109103CERAMIC CHIP, 50V B 10000PF K
CZ2524203100ELECTORLYTIC, 16V 10UF M 7L 3A
CZ2624109103CERAMIC CHIP, 50V B 10000PF K
CZ2824109103CERAMIC CHIP, 50V B 10000PF K
CZ2924109103CERAMIC CHIP, 50V B 10000PF K
CZ3024203100ELECTORLYTIC, 16V 10UF M 7L 3A
CZ3124092730CERAMIC CHIP, 16V B 0.1UF K
CZ3224105150CERAMIC CHIP, 50V CH 15PF J
CZ3324105390CERAMIC CHIP, 50V CH 39PF J
CZ3424105150CERAMIC CHIP, 50V CH 15PF J
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY
PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL.
CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components
which have special characteristics important for safety and should be replaced only with types identical to those in the
original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals.
Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE on the MANUAL for this
model. Do not degrade the safety of the receiver through improper servicing.
NOTE:
1. RESISTORResistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5%
tolerance carbon resistor, unless otherwise noted as the following marks.
1/2R = Metal or Metal oxide of 1/2 watt1/2S = Carbon compsistion of 1/2 watt
1RF = Fuse resistor of 1 watt10W = Cement of 10 watt
K = ±10% G = ±2% F = ±1%
2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in
?F, and the values more than 1 in pF.
All capacitors are ceramic 50V, unless otherwise noted as the following marks.
Electolytic capacitorMylar capacitor
3. The parts indicated with " * " have special characteristics, and should be replaced with identical parts only.
4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with all
controls at normal, line voltage 120 volts.
5. Waveforms are taken receiving color bar signal with enough sensitivity.
6. Voltage reading shown are nominal values and may vary ±20% except H.V.
SCHEMATIC DIAGRAM STRUCTURE:
SIGNAL CircuitBANKAN[ SHEET - 1/7 ] .......... 1/15
POWER / DEF CircuitBANKAN[ SHEET - 1/7 ] .......... 8/15
CRT-D VM / 3L-DIGI-COMB Circuit ................................................... 15/15
AUDIO[ SHEET - 2/7 ] .......... 2/15
TUNER / IF[ SHEET - 3/7 ] .......... 3/15
AV-SW[ SHEET - 4/7 ] .......... 4/15
VCD[ SHEET - 5/7 ] .......... 5/15
MICON[ SHEET - 6/7 ] .......... 6/15
MW[ SHEET - 7/7 ] .......... 7/15
V-DEF-DPC[ SHEET - 2/7 ] .......... 9/15
H-DEF[ SHEET - 3/7 ] ........ 10/15
POWER[ SHEET - 4/7 ] ........ 11/15
KEY-LED[ SHEET - 5/7 ] ........ 12/15
TILT[ SHEET - 6/7 ] ........ 13/15
SUB-TUNER[ SHEET - 7/7 ] ........ 14/15
– 35 –
Page 34
GENERAL ADJUSTMENTS
QG01
DIG Comb
ZY01
PIP
Module
QZ01
3L-DIG
SPECIFIC INFORMATIONS
CIRCUIT BLOCK DIAGRAM
– 36 –
Page 35
SPECIFICATIONS
TELEVISION SYSTEMNTSC standard
CHANNEL COVERAGEVHF: 2 through 13
UHF: 14 through 69
Cable TV: mid band (A-8 through A-1, A through I)
super band (J through W)
hyper band (AA through ZZ, AAA, BBB)
ultra band (65 through 94, 100 through 125)