SERVICE MODE ...................................................................................................................................................... 6
SETTING & ADJUSTING DATA .............................................................................................................................16
LOCATION OF CONTROLS................................................................................................................................... 17
CHASSIS AND CABINET REPLACEMENT PARTS LIST......................................................................................21
PC BOARDS BOTTOM VIEW.................................................................................................................................29
TERMINAL VIEW OF TRANSISTORS ................................................................................................................... 32
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 abov e the specified limit. The nominal
value of the high voltage of this receiver is (A) kV at zero
beam current (minimum brightness) under a (C) V A C power
source. The high voltage must not, under any circumstances, exceed (B) kV.
Refer to table-1 for high v oltage (A), (B) & AC voltage (C).
(See SETTING & ADJUSTING DATA on page 16)
Each time a receiver requires servicing, the high voltage
should be checked f ollowing 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
WARNING : Service should not be attempted by anyone unf amiliar with the necessary precautions on this receiver . The f ollowing
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 ser vice 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; nonmetallic control knobs, insulating covers, shields, isolation resistor-capacitor network etc.
2. The only source of X-RAY RADIATION in this TV receiver
is the picture tube. F or contin ued X-RAY RADIATION protection, the replacement tube must be exactly the same
type tube as specified in the parts list.
3. 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 NO TICE below.
GENERAL ADJUSTMENTS
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 b y 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
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.
SPECIFIC INFORMATIONS
SET-UP ADJUSTMENT
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.
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 y oke
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
1. ENTERING TO SERVICE MODE
1) Press o button once on
Remote Control.
SERVICE MODE
2) Press o button again to
keep pressing.
3) While pressing the o button,
press MENU button on TV set.
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:- / - - button (on Remote) or a button (on TV)
Test signal selection :a button (on Remote)
Selection of the adjustment items :Channel s/t (on TV or Remote)
Change of the data value :Volume ; +/– (on TV or Remote)
Adjustment menu mode ON/OFF :MENU button (on TV)
Initialization of the memory (QA02) :CALL + Channel button on TV (s)
Reset the count of operating protect
Test audio signal ON/OFF (1kHz) :8 button
Self diagnostic display ON/OFF :9 button
Item
Data
(Service mode display)
Adjustment mode
S
Press
Press
Item
Data
S
Color thickness correction
note: Displayed differently as shown below, de-
pending on the setting of the receiving color
system.
COLP (PAL)
COLC (NTSC)
COLS (SECAM)
CAUTION : Never try to perform initialization unless you have changed the memory IC.
– 6 –
Page 7
4. SELECTING THE ADJUSTING ITEMS
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 ; +/– 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 CALL 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 “Auto search 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 a button on the Remote Control changes the built-in test patterns on screen as described below
in SERVICE MODE.
GENERAL ADJUSTMENTS
Signal off
NTSC signals (14 patterns)
PAL signals (14 patterns)
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
• H signal (white)
• H signal (black)
The signals marked with are not usable to display in the Test signal for some model.
*
– 7 –
Page 8
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>
23******
POWER : 00
BUS LINE : OK
BUS CONT : OK
BLOCK : UV V1 V2
QV01
GENERAL ADJUSTMENTS
Indicated color of mode now selected : Green and Red
Indicated color of other modes: White
Green :Normal
Red : The microcomputer operates to provide judgement
of no video signal. The red color is still indicated
though the signal is input, failure may exist in input
signal line including QV01.
QV01 : In case of indication green ---Normal
In case of indication red with input signal---Failure may exist in output line including QV01.
Part number of microcomputer (QA01)
Operation number of protecting circuit ----“00” is nor-
mal.
When indication is other than “00”, overcurrent apts to
flow, and circuit parts may possibly be damaged.
BUS LINE CHECK ----“OK” is normal.
“SDA1-GND” ------------- SDA-GND short circuit.
“SCL1-GND” -------------- SCL-GND short circuit.
“SCL1-SDA1” ------------- SCL-SDA short circuit.
BUS CONT ----“OK” is normal.
When indication shows “Q uuu NG”, the device with
SPECIFIC INFORMATIONS
the number may possibly be damaged.
BLOCK
UV : TV reception mode
V1 : VIDEO 1 input mode (a1)
V2 : VIDEO 2 input mode (a2)
The items marked with are not usable to display in the SELF DIAGNOSTIC FUNCTION for some model.
*
NOTE: Component which controls character display on
screen is QT01 (TELETEXT IC.). If this display
function fails to operate due to damage in QT01,
self diagnosis procedure is as follows.
(1) In case that power indicator is blinking with
interval of 0.5 seconds; it means protecting
circuit (Current limiter) is operating, and circuit components may possibly be damaged.
Check related components.
(2) In case that power indicator is blinking with
interval of 1 second; Protecting circuit does
not operate, but a part of Bus line does not
operate normally. Check Bus line.
– 8 –
Page 9
1. ENTERING TO DESIGN MODE
1) Select the Service mode.
DESIGN MODE
2) While pressing o (or CALL) 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” 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”.
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
– 9 –
Page 10
ELECTRICAL ADJUSTMENTS
ITEMADJUSTMENT PROCEDURE
FOCUS VR ADJ
SUB-BRIGHTNESS
(BRTC)
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
Note: Constrict the picture height
until the vertical retrace line
appears adjusting the item
HIT (HEIGHT).
HORIZONTAL POSITION
ADJUSTMENT (HPOS)
VERTICAL POSITION
ADJUSTMENT (VPOS)
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. Set CONTRAST to minimum, and
BRIGHTNESS to center by adjusting
user controls.
2. Set the TV in service mode to get white
cross-bar of inside pattern.
3. Select BRTC (brightness correction),
and adjust the ; – /+ button to reduce
the value so that white portion of inside
pattern slightly light.
4. Adjust ; – /+ button to increase the
data value of BRTC, and set it just
before the difference between the belt of
vertical retrace and the border of black
portion of inside pattern is visible.
After that, return vertical height and
contrast.
1. Set the TV in service mode, and get
black or white cross-bar signal with
VIDEO button on remote hand unit.
2. Select either HPOS (Horizontal
picture phase) or VPOS (Vertical
picture phase) with CHANNEL s, t
buttons, and adjust horizontal or
vertical picture position in the center
of screen with VOLUME ; – /+
buttons.
Belt of vertical retrace
VERTICAL AMPLITUDE
ADJUSTMENT (HIT)
1. Set the TV in service mode, and get
black or white cross-hatch signal
with VIDEO button on remote hand
unit.
2. Select HIT (Vertical amplitude) with
CHANNEL s, t buttons, and adjust
vertical amplitude with VOLUME
; – /+ buttons so that vertical am-
plitude lacks a little.
3. Adjust vertical amplitude with VOLUME ; – /+ buttons so that the first
bar on cross-hatch signal touches
edge of screen.
– 10 –
The first
Page 11
ITEMADJUSTMENT PROCEDURE
WHITE BALANCE
ADJUSTMENT
CUTOFF ADJUSTMENT
•
(RCUT)
(GCUT)
(BCUT)
DRIVE ADJUSTMENT
•
(GDRV)
(BDRV)
NOTE: It is released built-in test pattern by changing the adjustment item for some model.
In this case, select the adjustment item with channel s t buttons first and then select the built-in test pattern with
-/- - button.
1. Set Contrast to 40, and brightness to +20 by picture control.
2. Set the TV in service mode, and get the inside W/B adjusting signal with VIDEO
button.
3. Select RCUT, GCUT and BCUT with CHANNEL s, t buttons, to set individual
values to Initial reference data, and to set GDRV and BDRV to Initial reference
data with VOLUME ; – /+ buttons (See page 16).
4. Press -/- - button on the remote control and rotate Screen VR to get one slight
horizontal line on screen.
Note: Every pressing of -/- - button provides Horizontal line picture and Normal
picture alternately.
5. Press -/- - button to release horizontal line picture, and select the two other colors
which did not light in the above step with CHANNEL s, t buttons. Then tap VOL-
UME ; – /+ buttons so that three colors slightly light in the same level.
X To correct white balance in light area,
select GDRV and BDR V with CHANNEL
s, t buttons to adjust.
2) Change COLP data (COLC Difference data) to adjust the 6th peak amplitude of rainbow color bar.
SPECIFIC INFORMATIONS
* Note: This ITEM Adjust after (COLC)
4 SUB TINT CENTER (FOR M-NTSC MODEL) (TNTC)
(Measuring point)Q501 #22 (B-OUT)
(Adjusting signal)Sub Bright (NTSC) signal
(Adjusting method) Change TNTC data to adjust the 5th pointion to the 6th level of B-Y signal and the 7th level differ-
* Note: This ITEM Adjust after (COLC)
Value
ence shuld regulate to 2:1
–5°
1
2
#5#6#7
Adjust the amplitude of color bar (p-p value of the
upper half)
1) Set BUS data of Q501 to the same v alue as that SUB TINT adjustment.
2) Set user control to the standard 1.
3) Change COLC data to adjust the 6th peak amplitude of rainbow color bar
Value
Adjust the amplitude of color bar (p-p value of the
upper half)
1.4±0.2V (p-p)
6 WHITE BALANCE ADJUSTMENT
(Adjusting method)
1) Set user control to the standard 1.
2) BUS data of Q501
GDRV→Initial value (40H)
BDRV→Initial value (40H)
RCUT→Initial value (20H)
GCUT→Initial value (20H)
BCUT→Initial value (20H)
3) Set the mode to the one horizontal line mode.
4) Change SCREEN VR to set it so that one of the line R, G and B will light slightly.
5) Change CUT-OFF data to set it so that each one of R, G and B will light slightly (for about white).
6) Release the H. Line mode.
7) Change B/G drive data and R/G/B CUT-OFF data to adjust white balance in bright area and dark area.
* Bright area (High-light area): 103cd/m
* Dark area (Low-light area):13cd/m
SPECHigh-light area:11500°K+0.0075uv
Low-light area:10500°K+0.0105uv
2
2
CA100 DATA
x=260y=271
x=260y=271
7 SUB COLOUR CENTER (COLS) (SECAM)
(Measuring point)Q501 #22 (B-OUT)
(Adjusting signal)SECAM COLOUR BAR
(Adjusting method) Adjusting the amplitude of B-Y (Mute the picture in adjustment)
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
SPEC: 1.9±0.2V
* Note: This ITEM Adjust after (COLC)
Value
Adjust the amplitude of color bar (p-p value of the
upper half)
(Measuring point)Q501 #20 R-Y OUT
(Adjusting signal)Colour bar (SECAM) signal
(Adjusting method) Adjust (SRY) the level of the monochrome signal part must be a match to the level of horizontal
SPEC: 0±10 mv (p-p)
10 SECAM B-Y ADJUSTMENT
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
(Measuring point)Q501 #22 R-Y OUT
(Adjusting signal)Colour bar (SECAM) signal
(Adjusting method) Adjust (SBY) the level of the monochrome signal part must be a match to the level of horizontal
SPEC: 0±10 mv (p-p)
11 VERTICAL POSITION
(Input signal)WG Philip Pattern (Do not use French SECAM)
(Measuring place)On Picture
(Setting)Contrast=Max. Bright=Center Color=Center
(Adjusting method) Adjust VPOS upper and lower position on Philips pattern may become a center. (Turn the direction of
12 VERTICAL HEIGHT
(Input signal)WG Philip Pattern (Do not use French SECAM)
(Measuring place)On Picture
(Setting)Contrast=Max. Bright=Center Color=Center
(Adjusting method) Adjust the Sub address HIT on Philips pattern may hide frag of the upper and lower side in exactly.
blanking signal.
blanking signal.
CPT to the south or the north when adjusting. Adjust the amount offsetting if it is not possible to do.)
13 HORIZONTAL POSITION
(Input signal)WG Philip Pattern (Do not use French SECAM)
(Measuring place)On Picture
(Setting)Contrast=Max. Bright=Center Color=Center
(Adjusting method) Adjust the Sub address HPOS on Philips pattern may become the center location (Minimize D-C in
the adjustment magnetic field on CPT.)
– 14 –
Page 15
CIRCUIT CHECK
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 e xceed the limit under any conditions.
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
– 15 –
Page 16
CHAPTER 2 SPECIFIC INFORMATIONS
SAFETY INSTRUCTIONS
GENERAL ADJUSTMENTS
SERVICE MODE
ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE:
SETTING & ADJUSTING DATA
21"
HIGH VOLTAGE AT ZERO BEAM:(A)30.2 kV
MAX HIGH VOLTAGE:
AV VOLTAGE
Table-1
(B)32.0 kV
(C) 110~240 V
RCUT
GCUT
BCUT
GDRV
BDRV
SPECIFIC INFORMATIONS
BRTC
COLC
TNTC
COLP
COLS
SCNT
HPOS
VPOS
HIT
VLIN
WID
PARA
CNR
TRAP
SRY
SBY
ItemAdjustmentReference data
R CUTOFF (B/W)
G CUTOFF (B/W)
B CUTOFF (B/W)
G DRIVE
B DRIVE
SUB BRIGHT CEN
SUB COLOR CEN NTSC
SUB TINT CEN
SUB COLOR CEN PAL
SUB COLOR CEN SECAM
SUB CONTRAST
50Hz H-POSITION
V-POSITION
HEIGHT
V-LINEARITY
PICTURE WIDTH
E-W PARABOLA
E-W CORNER
TRAPEZIUM
SECAM R-Y
SECAM-B-Y
Table-2
20H
20H
20H
40H
40H
40H
40H
40H
00H
00H
08H
0DH
03H
20H
07H
30H
15H
05H
0DH
08H
08H
Data
←
←
←
←
←
←
←
45H
FFH
←
06H
10H
←
1AH
←
34H
15H
←
←
←
←
DESIGN MODE
ADJUSTING ITEMS AND DATAS IN THE DESIGN MODE:
ItemName of adjustment
* There are no adjusting items in the design mode.
Preset Data21"
Table-3
– 16 –
Data
Remarks
Page 17
LOCATION OF CONTROLS (Representative: 21A3E)
Front
Main Power On/Off
Head Phone Jack
Video In
Channel Up
Channel Down
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
Audio Input Left
Audio Input Right
Remote
on-screen on/off
Digit Select
Position down/up
Level down/up
Menu open
CALL
1
4
7
–/--
MENU
MENU Open
Power Ind.
Infra-red Sensor
mute
Power ON/OFF
3
2
6
5
9
8
0
Direct Select
TV/VIDEO Select
Volume down/up
Level down/up
Picture control
– 17 –
Menu Selectg
Page 18
PROGRAMMING CHANNEL MEMORY
• First, use the ASM (Automatic Search Memory) function to preset all the active channels in your area automatically.
Then, arrange the preset channels with the SEARCH (>>>), MFT (Manual Fine Tuning) and AFT (Auto Fine Tuning)
functions so that you can tune into only desired channels.
• This section shows how to tune in channels using mainly the Remote Controller. You can also perform the system
select, ASM, SEARCH (>>>), SKIP, MFT and AFT operations using the buttons on the TV set.
To preset channels (ASM)
ASM (Automatic Search Memory)
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
Select the head of the position number to start the ASM
1
with the position down ( )/up ( ) buttons or the digit/
direct select buttons.
Press the MENU button repeatedly to call up the SET
2
UP menu on the screen.
Confirm that “COLOR” is set to “AUTO” and “SOUND”
3
is set to proper system.
If not, press the
“COLOR” or “SOUND” and press the –/+ buttons to
select each proper system.
Press the
4
“ASM”.
Press the "+" button to start the ASM. All active chan-
5
nels will be stored in the memory automatically.
When programming is complete, the initial position
number will reappear.
t/s
t/s
buttons to move the cursor (-) to
buttons to move the cursor (-) to
To preset channels
(Manual search, AFT, MFT)
Manual search (>>>)
Select a position number with the position down ( )/
1
up ( ) or digit/direct select buttons.
Press the MENU button repeatedly to call up the SET
2
UP menu on the screen.
Press the
3
Press the –/+ buttons to start searching.
4
The – button searches for lower-numbered channels;
the + button for higher- numbered channels.
Repeat this process until you can get the desired channel.
When the desired programme is shown, press the
5
buttons to move the cursor (-) to “”.
t/s
buttons to move the cursor (-) to “>>>”.
t/s
After presetting
Check the preset channels by pressing the position down ( )/
up ( ) buttons.
• If the picture or sound of a certain channel is not good, finetune the channel using the MFT function.
• If the colour of a certain channel is abnormal, automatic
colour system selection (AUT O) ma y malfunction, or sound
system selection is wrong. In such a case, select another
colour and/or sound system.
– 18 –
Press the + button to memorize the channel at the cur-
6
rent postion.
When you desire to store another channel at another
7
postion, move the cursor (-) to “POSITION” with the
t/s
buttons and select a desired position with the –/+
buttons.
Then, press the
to “>>>” and repeat the steps 4 to 7.
t/s
buttons to move the cursor (-)
Page 19
• Use the SEARCH function if desired channels could not be preset with the ASM, or if you would like to preset the
desired channels to specific position numbers one by one.
• The adjustments below are not necessary under normal conditions. However, in areas of inferior broadcast conditions
where adjustment is necessary for a better picutre, adjust the tuning with the MFT (Manual Fine Tuning). The AFT OFF
status automatically keeps the condition adjusted with the MFT function.
• The AFT (Auto Fine Tuning) function automatically corrects slight fluctuations when receiving signals.
• When using Manual Search to preset the channel, the AFT will automatically turn ON and SKIP to OFF.
To skip unnecessary position numbers
After presetting the channels, you may skip unnecessary position numbers so that only the channels you want to watch
are selected.
MFT (Manual Fine Tuning)
Select the position number you want to fine-tune with
1
the position down ( )/up( ) buttons or digit/direct
select buttons.
To skip a position number
Select the position number to be skipped with the posi-
1
tion down ( )/up ( ) buttons or digit/direct select
buttons.
GENERAL ADJUSTMENTS
Press the MENU button repeatedly to call up the SET
2
UP menu on the screen.
Press the
3
Press the –/+ buttons until the best possible picture
4
and sound are obtained.
Note
When operating the MFT function, the AFT status is
automatically set to OFF.
AFT (Auto Fine Tuning)
Select the position number you want to fine-tune with
1
the position down ( )/up( ) buttons or digit/direct
select buttons.
Press the MENU button repeatedly to call up the SET
2
UP menu on the screen.
t/s
buttons to move the cursor (S) to “MFT”.
Press the MENU button repeatedly to call up the SET
2
UP menu on the screen.
Press the
3
Press the –/+ buttons to select “SKIP ON”.
t/s
buttons to move the cursor (S) to “SKIP”.
4
Press the MENU button to turn off the SET UP menu
5
display.
Select the position number to be skipped with the direct select buttons. The * mark appears to the left of
the position number.
The position number will then be skipped when you
select channels with the position down ( )/up ( )
buttons.
To restore a skipped position number
1 Select the position number you want to restore with the di-
rect select (and/or digit select) buttons.
2 Press the MENU button to call up the SET UP menu display
and press the
t/s
buttons to move the cursor (S) to “SKIP”.
SPECIFIC INFORMATIONS
Press the
3
Press the –/+ buttons to select the "ON" indication.
Note
When position is set to AFT OFF status, the "R" mark
appears to the left of the position number.
When the channel is set to AFT ON status, the position
number is displayed without the "R" mark.
t/s
buttons to move the cursor (S) to “AFT”.
3 Press the –/+ buttons to select “SKIP OFF”.
* Please refer to owner's manual in detail.
– 19 –
Page 20
~
~
–+
TUNER
H001
QV01
QA01
QA02
Q801
Q883
Q404
Q301
Q501
Q901,Q903,Q905
Q610
Q840
AV IN
(1)
AV IN
(2)
MEMORY
QT01
TEXT
REGULATOR
RESET
µ-COM
I
2
C BUS
R
G
B
HYBRID
CONVERTER TRANS.
+B VOLTAGE
C
Y
CHROMA
VIDEO
DEF.
VIDEO OUT
V. OUT
H. OUT
ERROR
AMP.
F.B.T.
H.V.
D.Y.
V
H
CRT
AUDIO OUT
L
R
AV SW
*
*
*
*
*
BUS CONTROL BLOCK
SV
V
L
R
R
MONITOR
OUTPUT
V
L
R
V
L
CHASSIS BLOCK DIAGRAM
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
– 20 –
Page 21
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
No.
CAPACITORSCAPACITORS
CAPACITORS
CAPACITORSCAPACITORS
C10124796479ELECTROLYTICCE04G35V 4.7UF M
C10224797101ELECTROLYTICCE04G50V 100UF M
C10424797100ELECTROLYTICCE04G50V 10UF M
C10524591102PLASTIC FILMCQ921M 50V 1000PF J
C10624794221ELECTROIYTIC CE04G 16V 220UF M
C10824539474MTPLA CAP M 50V 474J MUL
C11624591104PLASTIC FILMCQ921M 50V 0.1MF J
C11824474102CERAMIC CK141B 50V 1000PF K
C12924474102CERAMIC CK141B 50V 1000PF K
C16124797478ELECTROLYTICCE04G50V 0.47UF M
C16224212332CERAMIC DISK CK45 B 50V3300PF K
C16724763101ELECTROLYTICCE04G16V 100UF M
C16824794100ELECTROLYTICCE04G16V 10UF M
C18024797229ELECTROLYTICCE04G50V 2.2UF M
C18224797101ELECTROLYTICCE04G50V 100UF M
C21224797010ELECTROLYTICCE04G50V 1.0UF M
C21624797010ELECTROLYTICCE04G50V 1.0UF M
C22124473100CERAMIC CC141SL 50V 10PF J
C22224473100CERAMIC CC141SL 50V 10PF J
C22324473100CERAMIC CC141SL 50V 10PF J
C22424797100ELECTROLYTICCE04G50V 10UF M
C22524591104PLASTIC FILMCQ921M 50V 0.1MF J
C22624591104PLASTIC FILMCQ921M 50V 0.1MF J
C23324073077ELECTROLYTICCE04P 50V 0.1UF M 3A
C30124539154MTPLA CAP M 50V 154J MUL
C30224591152PLASTIC FILMCQ921M 50V 1500PF J
C30324539334MTPLA CAP M 50V 334J MUL
C30524617912ELECTROLYTICCE04CH
C30624073043ELECTROLYTICCE04P 16V
C30724693473PLASTIC FILMCQ921M 100V 0.047MFJ
C30824668101ELECTROLYTICCE04Q35V 100UF M 3A
C30924591102PLASTIC FILMCQ921M 50V 1000PF J
C31024796102ELECTROLYTICCE04G35V 1000UF M
C31124214681CERAMIC DISK CK45 B 500V 680PF K
C31324082057PLASTIC FILMCF922 M 100V
C31424591473PLASTIC FILMCQ921M 50V 0.047MFJ
C31724214471CERAMIC DISK CK45 B 500V 470PF K
Part No.Description
50V 2.2UF K3A LI
2200UF M 3A
220000PF J
Location
No.
C31824212102CERAMIC DISK CK45 B 50V 1000PF K
C31824212821CK45B1H821K (21A3TR)
C32024668101ELECTROLYTICCE04Q35V 100UF M 3A
C37024794101ELECTROLYTICCE04G16V 100UF M
C37124794220ELECTROLYTICCE04G16V 22UF M
C40324591822PLASTIC FILMCQ921M 50V 8200PF J
C40424797478ELECTROLYTICCE04G50V 0.47UF M
C40824591183PLASTIC FILMCQ921M 50V 0.018MFJ
C40924212221CERAMIC DISK CK45 B 50V 220PF K
C41024693472PLASTIC FILMCQ921M 100V 4700PF J
C41724214102CERAMIC DISK CK45 B 500V 1000PF K
C42024666220ELECTROLYTICCE04Q16V 22UF M 3A
C42124666470ELECTORLYTOC CE04Q 16V
C43124794102ELECTROLYTICCE04G16V 1000UF M
C43324666100ELECTROLYTICCE04Q10V 10UF M 3A
C43524797479ELECTROLYTICCE04G50V 4.7UF M
C44024082951PLASTIC FILMCF92T 1500VH 6000PF H
C44224082694PLASTIC FILMCF92T 250VR33UF J
C44424082934PLASTIC FILMCF92T 1500VH 1500PF H
C44524828563PLASTIC FILMCQ92 T200V56000PF J
C44624679100ELECTROLYTICCE04Q250V10UF M 3A
C44824640908ELECTROLYTICCE04H
C44924666101ELECTROLYTICCE04Q16V 100UF M 3A
C46324212152CERAMIC DISK CK45 B 50V 1500PF K
C46724082095PLASTIC FILM, 0.18MFD, 630V
C47024794220ELECTROLYTICCE04G16V 22UF M
C47224539474MTPLA CAP M 50V 474J MUL
C50424591104PLASTIC FILMCQ921M 50V 0.1MF J
C50524591104PLASTIC FILMCQ921M 50V 0.1MF J
C51124797010ELECTROLYTICCE04G50V 1.0UF M
C51224212222CERAMIC DISK CK45 B 50V 2200PF K
C51724763101ELECTROLYTICCE04G16V 100UF M
C52124591104PLASTIC FILMCQ921M 50V 0.1MF J
C52224591104PLASTIC FILMCQ921M 50V 0.1MF J
C52324591104PLASTIC FILMCQ921M 50V 0.1MF J
C52424797101ELECTROLYTICCE04G50V 100UF M
C52624591222PLASTIC FILMCQ921M 50V 2200PF J
C52724353100CERAMIC DISC CC45CH 50V CH 10PF C
Part No.Description
(21A3E/21A3M/21A3MJ)
47UF M 3A
160V33UF M 3A LI
SPECIFIC INFORMATIONS
– 21 –
Page 22
Location
No.
Part No.Description
Location
No.
Part No.Description
C52824206228ELECTROLYTICCE04WS
C60624797010ELECTROLYTICCE04G50V 1.0UF M
C60724797229ELECTROLYTICCE04G50V 2.2UF M
C60824797010ELECTROLYTICCE04G50V 1.0UF M
C60924795101ELECTROLYTICCE04G25V 100UF M
C61024591473PLASTIC FILMCQ921M 50V 0.047MFJ
C61124797100ELECTROLYTICCE04G50V 10UF M
C61224794470ELECTORLYTICCE04G16V 47UF M
C61324797100ELECTROLYTICCE04G50V 10UF M
C61424591473PLASTIC FILMCQ921M 50V 0.047MFJ
C61524794100ELECTROLYTICCE04G16V 10UF M
C61624795471ELECTROLYTICCE04G25V 470UF M
C61724797229ELECTROLYTICCE04G50V 2.2UF M
C62124591103PLASTIC FILMCQ921M 50V 0.01MF J
C62824797339ELECTROLYTIO CE04G50V 3.3UF M
C62924795102ELECTROLYTICCE04G25V 1000UF M
C63024795471ELECTROLYTICCE04G25V 470UF M
* C80124503002MTPLA AC275V 0.22UF M
C80824667331ELECTROLYTICCE04Q25V 330UF M 3A
C81024086059ELECTROLYTICCE692J 400V
* C81324092555CERAMIC DISC CK45B AC250V
* C81424092555CERAMIC DISC CK45B AC250V
C81724092337CERAMIC DISC CK45R2KV 220PF K
C81824082396PLASTIC FILM CF92 T 1250VH 1200PF H
SPECIFIC INFORMATIONS
C81924539474MTPLA CAP M 50V 474J MUL
C82024092343CERAMIC DISC CK45R2KV 680PF K
C82124214471CERAMIC DISK CK45 B 500V 470PF K
C82324214471CERAMIC DISK CK45 B 500V 470PF K
C82924591152PLASTIC FILM CQ921 M 50V 1500PF J
C83224666470ELECTORLYTOC CE04Q 16V
C84124667100ELECTROLYTICCE04Q16V 10UF M 3A
C84224666100ELECTROLYTICCE04Q10V 10UF M 3A
C84324591104PLASTIC FILM CQ921 M 50V 0.1MF J
C84624539224PLASTIC FILM, 50V 0.22 UF J
C88424640018ELECTROLYTIC, 220MFD, 160V
C88524214471CERAMIC DISK CK45 B 500V 470PF K
C88924667102ELECTROLYTICCE04Q25V
CA3724212101CERAMIC DISK CK45 B 50V 100PF K
CA3824212101CERAMIC DISK CK45 B 50V 100PF K
CA4224794100ELECTROLYTICCE04G16V 10UF M
CA4324591104PLASTIC FILMCQ921M 50V 0.1MF J
CA5124212472CERAMIC DISK CK45 B 50V 4700PF K
CA5224212222CERAMIC DISK CK45 B 50V 2200PF K
CA5324212181CERAMIC DISK CK45 B 50V 180PF K
CA5424794330ELECTROLYTICCE04G16V 33UF M
CA5524797010ELECTROLYTICCE04G50V 1.0UF M
CA6824794100ELECTROLYTICCE04G16V 10UF M
CB0124794470ELECTORLYTICCE04G 16V 47UF M
CB2024212101CERAMIC DISKCK45 B 50V 100PF K
CB2124212221CERAMIC DISKCK45 B 50V 220PF K
CF0124473470CERAMIC CC141SL 50V 47PF J
CF0224436470CERAMIC DISC CC45 SL 50V47PF J
CF0324797010ELECTROLYTICCE04G50V 1.0UF M
CF0424794470ELECTORLYTICCE04G16V 47UF M
CS0124797229ELECTROLYTICCE04G 50V 2.2UF M
CS0224794100ELECTROLYTICCE04G 16V 10UF M
CS0324794100ELECTROLYTICCE04G 16V 10UF M
CS0424797010ELECTROLYTICCE04G 50V 1.0UF M
CS0524797010ELECTROLYTICCE04G 50V 1.0UF M
CS0624797010ELECTROLYTICCE04G 50V 1.0UF M
CS0724797010ELECTROLYTICCE04G 50V 1.0UF M
CS0824797229ELECTROLYTICCE04G 50V 2.2UF M
CS0924797229ELECTROLYTICCE04G 50V 2.2UF M
CS1024797229ELECTROLYTICCE04G 50V 2.2UF M
CS1324591563PLASTIC FILM CQ921 M 50V 0.056MFJ
CS1424591563PLASTIC FILM CQ921 M 50V 0.056MFJ
CT0124794221ELECTROIYTIC CE04G16V 220UF M
(21A3TR)
CT0224232103CK45F1H103Z (21A3TR)
CT0324232103CK45F1H103Z (21A3TR)
CT0424794101ELECTROLYTICCE04G16V 10UF M
(21A3TR)
CT0524591104PLASTIC FILM CQ921 M
50V 0.1MF J (21A3TR)
CT0624794470ELECTORLYTICCE04G16V 47UF M
(21A3TR)
CT0724794100ELECTROLYTICCE04G16V 10UF M
(21A3TR)
CT0824353560CC45CH1H560J (21A3TR)
CT0924353560CC45CH1H560J (21A3TR)
CT1024794470ELECTORLYTICCE04G16V 47UF M
(21A3TR)
CT1124591104PLASTIC FILM CQ921 M 50V 0.1MF J
(21A3TR)
CT1224794470ELECTORLYTICCE04G16V 47UF M
(21A3TR)
CT1324591104PLASTIC FILM CQ921 M 50V 0.1MF J
(21A3TR)
CT1424591104PLASTIC FILM CQ921 M 50V 0.1MF J
(21A3TR)
CT1624353220CC45CH1H220J (21A3TR)
CT1724591104PLASTIC FILM CQ921 M 50V 0.1MF J
(21A3TR)
CT2024232103CK45F1H103Z (21A3TR)
CT2124794101ELECTROLYTICCE04G16V 10UF M
(21A3TR)
CV0124794470ELECTORLYTICCE04G 16V 47UF M
CV0924794101ELECTROLYTICCE04G 16V 100UF M
CV1024793471ELECTROLYTICCE04G 10V 470UF M
CV1124797010ELECTROLYTICCE04G 50V 1.0UF M
R31024552822RS14B2H822JB(21A3TR)
R312245521220XIDE RES B1/2W122J
R31324366243CARBON FILM SB 1/6W24K J
R31424366103CARBON FILM, 1/6W10K OHM J
R33324339569METAL FILM 2W5R6 J
R33624383331OXIDE FILM2W330J
R37024321189METAL FILM 1/2W1R8 J
R37124366562CARBON FILM SB 1/6W5.6K J
R37224366392CARBON FILM SB 1/6W3.9K J
(21A3TR/21A3M/21A3MJ)
QA0223906922IC, CAT24WC04P
QA5123314965TRANSISTOR, KTC3198 Y
QA5223314962TRANSISTOR, KTA1266 Y
QB0123314965TRANSISTOR, KTC3198 Y
QB2023114457TRANSISTOR, DTC143E S
QB2123314965TRANSISTOR, KTC3198 Y
QB3023314965TRANSISTOR, KTC3198 Y
QB4023314965TRANSISTOR, KTC3198 Y
QB6023314965TRANSISTOR, KTC3198 Y
QB6123314965TRANSISTOR, KTC3198 Y
QF01B0470153IC, CMOS 4CH MULTIPLEXER
QF0223314965TRANSISTOR, KTC3198 Y
QF0323314965TRANSISTOR, KTC3198 Y
QS0123114623TRANSISTOR, 2SC2878-A(TEM
QS0223114623TRANSISTOR, 2SC2878-A(TEM
QS0323314965TRANSISTOR, KTC3198 Y
QS0423314965TRANSISTOR, KTC3198 Y
QS0523314965TRANSISTOR, KTC3198 Y
QS0623314965TRANSISTOR, KTC3198 Y
QT0123000470IC, SAA5264PSM3C (21A3TR)
QT0223314965TRANSISTOR, KTC3198 Y (21A3TR)
QT0323114437TRANSISTOR, 2SC752GTM Y (21A3TR)
QT0423314962TRANSISTOR, KTA1266 Y (21A3TR)
QT0623906484IC, BA033T (21A3TR)
QT0723906242IC, CAT24C02P(21A3TR)
QV0123318916MC14053BCP
QV0823314965TRANSISTOR, KTC3198 Y
QV1023314965TRANSISTOR, KTC3198 Y
QV1123314965TRANSISTOR, KTC3198 Y
D10123316411DIODE, ZENER, HZT33-12
D11123357273DIODE, ZV=6.52-6.79
D15023357354DIODE, VR=35V IF=100MA DO-34