Sharp 21SFX10L User manual

SERVICE MANUAL
COLOUR TELEVISION
Chassis No. GA6
21S-FX10L
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 indentical to those specified should be used.
S2912521SFX10L
MODEL
ELECTRICAL SPECIFICATIONS
Chassis No. GA8S
CONTENTS
IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................................... 1-1
Page
LOCATION OF USER’S CONTROL ...................................................................................................................... 2-1
INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................................. 3-1
SERVICE MODE ..................................................................................................................................................... 4-1
ADJUSTMENT METHOD ........................................................................................................................................ 5-1
WAVEFORMS ......................................................................................................................................................... 6-1
CHASSIS LAYOUT ................................................................................................................................................. 7-1
BLOCK DIAGRAM .................................................................................................................................................. 8-1
DESCRIPTION OF SCHEMATIC DIAGRAM .......................................................................................................... 9-1
SCHEMATIC DIAGRAMS ......................................................................................................................................10-1
PRINTED WIRING BOARD ASSEMBLIES ........................................................................................................... 11-1
Parts Guide
POWER INPUT............................AC 110-220 V, 50/60 Hz
POWER RATING .....................................................92W
PICTURE SIZE .............................1,239 cm2 (192sq inch)
CONVERGENCE ............................................. Magnetic
SWEEP DEFLECTION .................................. .. Magnetic
FOCUS ......................................................... Electrostatic
INTERMEDIATE FREQUENCIES
Picture IF Carrier Frequency ...................... 45.75 MHz
Sound IF Carrier Frequency ...................... 41.25 MHz
Color Sub-Carrier Frequency ......................42.17 MHz
(Nominal)
AUDIO POWER
OUTPUT RATING... ...................... 3.0 W(RMS) x 4pcs
SPEAKER
SIZE ........................................................ 9 x 5cm, 4pcs
VOICE COIL IMPEDANCE .................32 ohm at 400 Hz
ANTENNA INPUT IMPEDANCE
VHF/UHF ........................................75 ohm Unbalanced
TUNING RANGES
VHF-Channels ................................................. 2 thru 13
UHF-Channels ................................................14 thru 69
CATV Channels ............................................. 1 thru 125
(EIA, Channel Plan U.S.A.)
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.
21S-FX10L
1st Edition

21S-FX10L
1 – 1
TV21S-FX10LService Manual21S-FX10LMarketE
CHAPTER 1. IMPORTANT SERVICE SAFETY PRECAUTION
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:
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. However, 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 X-
radiation 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 servicemen 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 value
−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 excessive high
voltage, avoid being unnecessarily close to the
receiver.
Do not operate the receiver longer than is necessary
to locate the cause of excessive voltage.
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 non-
isolated (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 voltages
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.
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 pic-
ture 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.


21S-FX10L
1 – 2
SAFETY NOTICE
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, etc.
Replacement parts which have these special safety
characteristics are identified in this manual; electrical
components having such features are identified by " "
and shaded areas in the Replacement Parts Lists and
Schematic Diagrams.
IMPORTANT SERVICE SAFETY PRECAUTION
(Continued)
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, 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 110~220 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 having with 5000 ohm per volt,
or higher, sensitivity to measure the AC voltage drop
across the resistor.
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks.
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, etc.) and measure the AC voltage drop
across the resistor.
AII checks must be repeated with the AC line cord
plug connection reversed. (If necessary, a non-
polarized 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.
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.
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
•
•
•
•

21S-FX10L
2 – 1
TV21S-FX10LService Manual21S-FX10LMarketE
CHAPTER 2. LOCATION OF USER'S CONTROL
[1] LOCATION OF USER'S CONTROL
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To Audio/Video
in terminals
FRONT AV & REAR AV CONTROLS
Number buttons
Infrared transmitter window
Aim this window at the infrared
sensor window on your TV set.
VOLUME UP/DOWN
Adjusts the volume.
Used for MENU setup.
AV MODE
Switches between MOVIE,
MUSIC and NEWS.
CC
Switches between Closed Caption
service type.
MUTE
Mutes the sound and restores sound
to previous level.
INPUT
Switches between TV broadcasts
and AV input programs.
SURROUND
Switches between ÒOFFÓo r Ò10 Ó
(during receiving signal stereo).
FAVORITE CHANNELS
BUTTONS (A/B/C/D)
Operate the Favorite Channel.
RESET
Resets all settings.
MENU
Calls the MENU screen.
8/9/;/:
Selects the MENU items,
adjusts the volume and selects
the channel.
MTS
Allows reception of stereo or
billingual (TV sound).
M.
POWER
P. I N
Switches M.P. IN mode on or off.
Turns the TV on or to Standby
mode.
FLASHBACK
Returns to previously viewed channel.
CHANNEL UP/DOWN
Selects the channel.
Used for MENU setup.
LANGUAGE
Changes the on-screen display
language.
DISPLAY
Displays the channel and timer settings
on the screen.
REMOTE CONTROL FUNCTION

21S-FX10L
3 – 1
TV21S-FX10LService Manual21S-FX10LMarketE
CHAPTER 3. INSTALLATION AND SERVICE INSTRUCTIONS
CIRCUIT PROTECTION
The receiver is protected by a 3.15A fuse (F701),
mounted on PWB-A, 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 protection circuit to ascertain
proper operation as follows:
1. Apply 110~220V 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 C602 +ve and make
sure that the voltmeter reads 20 ±1.1V.
5. Apply external 28.5V DC at C602 +ve by using an
external DC supply, TV must be shut off.
6. To reset the protector, unplug the AC cord and make
a short circuit between C602 -ve and C602 +ve.
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 110~220V
AC line voltage, with a strong air signal or a properly
tuned in test signal.
3. Enter the service mode and set Y-mute ON by using
Service R/C.
4. The voltage should be approximately 26kV (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.
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.

21S-FX10L
4 – 1
TV21S-FX10LService Manual21S-FX10LMarketE
CHAPTER 4. SERVICE MODE
SERVICE MODE
Adjustment mode
Setting mode
First mode of service when entering by
SERVICE key.
First mode of service when entering by
2 local keys.
Option mode
Confirmation mode
1. Service mode is switched by SERVICE key, CH UP + VOL DOWN when reset.
2. Service mode is cancelled by SERVICE key during Service mode.
3. Service mode can be switched to the following 5 modes via MENU key:
4䋮During Service mode, AFT operation is prohibited. The setting data for PLL is always set to fo data.
5䋮During Service mode, the following user data are set to default value and stored as last memory.
PICTURE䋯TINT䋯COLOR䋯BRIGHT䋯SHARP䋯COLOR TEMP.
BASS䋯TREBLE䋯BALANCE䋯MTS䋯FAO䋯SPEAKER䋯ENERGY SAVE
6䋮During Service mode, OSD display for ON/OFF is toggled via [CH CALL] key.
䊶At display OFF condition, if changing adjustment data, channel, input source, it remains display OFF.
䊶At display OFF condition, if changing adjustment item, it returns to display ON.
7䋮During Service mode, the following operation are prohibited.
CLOSED CAPTION䋯No signal BLUE SCREEN
8䋮During Service mode, sound is muted(only MTSIC) except when selecting the following items.
V24, M01
NVM Edit mode

21S-FX10L
4 – 2
Adjustment Mode Items
Data Service Mode Function Range Default Data
V01 SUB-CON CONTRAST 0~127 127
V02 SUB-TINT TINT 0~127 64
V03 SUB-COL COLOR 0~127 64
V04 SUB-BRI BRIGHT 0~255 128
V05 SUB-SHP-PRE VIDEO-TONE(PRE) 0~63 41
V06 SUB-SHP-OVER VIDEO-TONE(OVER) 0~63 41
V07 V-SHIFT V-SHIFT 0~7 4
V08 H-SHIFT H-PHASE 0~31 16
V09 RF-AGC RF-DELAY 0~127 127
V10 V-SIZE V-SIZE 0~63 32
V11 V-SHIFT50 V-SHIFT(OFFSET) -7~+7 0
V12 H-SHIFT50 H-PHASE(OFFSET) -15~+15 0
V13 V-SIZE50 V-SIZE(OFFSET) -31~+31 0
V14 VIF-VCO VIF-VCO 0~63 32
V15 R-CUT R-CUTOFF 0~255 127
V16 G-CUT G-CUTOFF 0~255 127
V17 B-CUT B-CUTOFF 0~255 127
V18 R-DRI R-DRIVE 0~127 64
V19 B-DRI B-DRIVE 0~127 64
V20 SUB-COLOR-YUV COLOR 0~127 64
V21 SUB-TINT-YUV BASEBAND-TINT 0~127 64
V22 CC-POS CC-POS 0~255 32
V23 SCREEN CUT OFF CUT OFF 0~2 0
V24 SUB-VOL A-ATT 0~127 (O20=0)
0~255 (O20=1)
127
255
V25 H-VCO H-VCO 0~7 4
V26 S-TRAP S-TRAP ADJ 0~127 64
V27 VS-CORRECT VS-CORRECTION 0~63 36
V28 VS-CORRECT50 VS-CORRECTION -13~+13 0
V29 V LINEARITY V-LINEARITY 0~63 35
V30 V LINEARITY50 V-LINEARITY -13~+13 0
V31 PARABOLA E/W PARABOLA 0~63 32
V32 PARABOLA50 E/W PARABOLA -13~+13 0
V33 TRAPEZIUM E/W TRAPEZIUM 0~63 32
V34 TRAPEZIUM50 E/W TRAPEZIUM -13~+13 0
V35 H-SIZE E/W H-SIZE 0~63 32
V36 H-SIZE50 E/W H-SIZE -13~+13 0
V37 UPPER CORNER E/W UPPER CORNER 0~63 32
V38 UPPER CORNER50 E/W UPPER CORNER -13~+13 0
V39 LOWER CORNER E/W LOWER CORNER 0~63 32
V40 LOWER CORNER50 E/W LOWER CORNER -13~+13 0
V41 ANGLE ADJ ANGLE ADJ 0~63 31
V42 ANGLE ADJ50 ANGLE ADJ -13~+13 0
V43 BOW ADJ BOW ADJ 0~63 31
V44 BOW ADJ50 BOW ADJ -13~+13 0
V45 S-TRAP ADJ START S-TRAP ADJ 0~127 25
V46 S-TRAP STOP S-TRAP ADJ 0~127 95
M01 MTS-ATT DIRECT OUT LEVEL ADJ 0~15 10
㩷㩷㩷㩷Note 䋱䋩 V23 = "1" … HORIZONTAL MODE
V23 = "2" … Y-MUTE MODE
㩷㩷㩷㩷Note 䋲䋩 V24䋺These registers are set to maximum value.

21S-FX10L
4 – 3
AUTO ADJUSTMENT
H-VCO
RF-AGC
PIF-VCO

1. When there is H-VCO auto adjustment key input at item H-VCO, auto adjustment will be implemented.
2. H-FREE (1chip) is set to 1.
3. H-OUT (1chip) is set by intelligent monitor output.
4. IM input becomes TIM input.
5. H-VCO (1chip) data is changed so that the number is 126 inside 8ms interval.
6. When adjustment is completed, OSD display and H-VCO auto adjustment data of EERPOM are updated.
7. H-FREE
(
1chip
)
, intelli
g
ent monitor output, IM input mode are recovered.
1. If there is RF-AGC auto adjustment key input at item RF-AGC, auto adjustment will be implemented.
2. AGC-OUT (MONITOR(1chip)is set by intelligent monitor output.
3. IM input becomes AD input.
4. RF-AGC(1chip) is decreased from current RF-AGC value to 0, the maximum AFT input voltage is obtained.
5. RF-AGC(1chip) is increased until at the point of AFT input voltage is (max. 0.3V), adjustment is completed.
6. When adjustment is completed, OSD display and RFGC auto adjustment status in EEPROM are updated.
7. Intelli
g
ent monitor output, IM input mode are recovered.
1. If there is PIF-VCO auto adjustment key input at item PIF- VCO, auto adjustment will be implemented.
2. VIF-DEF (1chip) is set to 1.
3. AFT output (1chip) is set by intelligent monitor output.
4. IM input becomes AD input.
5. VIF-VCO (1chip) is changed so the input voltage becomes 2.5V.
6. When adjustment is completed, OSD display and PIF-VCO auto adjustment status in EEPROM are updated.
7. VIF-DEF
(
1chip
)
intelli
g
ent monitor output, IM input mode are recovered.
S-TRAP
1. If there is S-TRAP auto adjustment key input at item S-TRAP, auto adjustment will be implemented.
2. S-TRAP OUTPUT is set by intelligent monitor output.
3. IM input becomes AD input.
4. S-Trap (1chip) is set to the value of V45(S-TRAP ADJ Start).
5. S_Trap_Result is set to the value of V45(S-TRAP ADJ Start).
6. S-Trap (1chip) is increased until the minimum input voltage becomes minimum.
7. Wait 20ms before sampling the new_ AD_data.
8. When adjustment is completed, OSD display and S-TRAP auto adjustment status in EEPROM are updated.
9. S-TRAP
(
1chip
)
intelli
g
ent monitor output, IM input mode are recovered.

21S-FX10L
4 – 4
Setting Mode Items
Data Service Mode Range Default Data
F01 ABCL-Gain 0/1 0
F02 SHP-AV-PRE -16~+16 0
F03 SHP-YUV-PRE -16~+16 0
F04 SHP-P-PRE -31~+31 0
F05 SHP-N3-PRE -31~+31 0
F06 SHP-AV-OVER -16~+16 0
F07 SHP-YUV-OVER -16~+16 0
F08 SHP-P-OVER -31~+31 0
F09 SHP-N3-OVER -31~+31 0
F10 SHP ANT-ON II OFFSET -15~0 -10
F11 RGB-CLIP 0/1 0
F12 E-SAVE 0~63 30
0~127 (O20=0) 120
0~255 (O20=1) 246
F14 VIF-G 0~7 5
F15 YDL-TV 0~7 5
F16 YDL-TV-P 0~7 5
F17 YDL-TV-N3 0~7 5
F18 YDL-AV 0~7 5
F19 YDL-AV-P 0~7 5
F20 YDL-AV-N3 0~7 5
F21 YDL-YUV 0~7 0
F22 TINT-AV -32~+32 6
F23 COL-AV -32~+32 0
F24 COL-P -31~+31 24
F25 COL-N3 -31~+31 0
F26 R-R -32~+32 3
F27 R-B -32~+32 -2
F28 B-R -32~+32 -8
F29 B-B -32~+32 6
F30 GAMM
A
0~3 1
F31 BS-D 0~3 0
F32 BS-C 0~3 0
F33 SL-TV 0~7 2
F34 SL-AV 0~7 2
F35 SL-YUV 0~7 0
F36 AFC2 0/1 0
F37 VD-TV 0~7 5
F38 VD-AV 0~7 7
F39 VD-YUV 0~7 1
F40 AS-TV 0/1 1
F41 AS-AV 0/1 1
F42 AS-YUV 0/1 0
F43 FBP-TV 0/1 0
F44 FBP-AV 0/1 0
F45 FBP-YUV 0/1 0
F46 C.Clip Level 0/1 0
F47 CP 0/1 1
F48 CC LEVEL 0~31 0
F49 OSD POS-H 0~31 0
F50 OSD POS-V50 1~55 38
F51 OSD POS-V60 1~50 23
F52 OFFSET-ADJ-COLO
R
-32~+32 10
F53 OFFSET-ADJ-TINT -32~+32 2
F54 WAIT㩺MD㩺TIMER 0/1 1
F55 R-CUT-YU
V
-63~+63 0
(SLOW MODE)
R-CUT (OFFSET)
COLOR
TINT
OSD POS
OSD POS
CC LEVEL
OSD POS
C.CLIP LEVEL
CP
FBP VTH
FBP VTH
AUTO-SLICE
FBP VTH
AUTO-SLICE
AUTO-SLICE
VSYNC-DET
VSYNC-DET
AFC2-G
VSYNC-DET
S-SLICE DOWN
S-SLICE DOWN
BS-CHARGE
S-SLICE DOWN
GAMMA
BS-DISCHARGE
B-DRI(OFFSET)
B-DRI(OFFSET)
R-DRI(OFFSET)
R-DRI(OFFSET)
COLOR(OFFSET)
COLOR(OFFSET)
TINT(OFFSET)
COLOR(OFFSET)
Y-DELAY
Y-DELAY
Y-DELAY
Y-DELAY
Y-DELAY
Y-DELAY
VIF-GAIN
Y-DELAY
CONTRAST(OFFSET)
F13 FAO-VOL A-ATT
VIDEO-TONE
EXTRGB-CLIP
VIDEO-TONE (OVER)
VIDEO-TONE (OVER)
VIDEO-TONE (OVER)
VIDEO-TONE (OVER)
VIDEO-TONE (PRE)
VIDEO-TONE (PRE)
VIDEO-TONE (PRE)
VIDEO-TONE (PRE)
Function
ABCL-G

21S-FX10L
4 – 5
F56 G-CUT-YU
V
-63~+63 0
F57 B-CUT-YUV -63~+63 0
F58 R-DRI-YUV -63~+63 0
F59 B-DRI-YUV -63~+63 0
F60 CONTRAST OFFSE
T
-63~+63 0
F61 CONTRAST YUV OFFSE
T
-63~+63 0
F62 BRIGHT OFFSET -63~+63 0
F63 BRIGHT AV2 OFFSET -15~+15 +1
F64 BRIGHT YUV OFFSE
T
-63~+63 0
F65 TRAP 0~3 2
F66 TRAP-P 0~3 2
F67 TRAP-N3 0~3 2
F68 AFC1-Gain-TV 0~3 0
F69 AFC1-Gain-AV 0~3 3
F70 AFC1-Gain-YUV 0~3 3
F71 OM-DE
T
0/1 0
F72 䌂䌓䋭䌇䌡䌩䌮 0/1 0
F73 C-ANGLE 0/1 0
F74 䌖䋭䌄䌌 0~3 0
F75 䌕䋭䌄䌌 0~3 0
F76 AS-SPEED-DN 0/1 0
F77 AS-SPEED-UP 0/1 0
F78 CR-PEDESTEL-ADJ 0~15 8
F79 CB-PEDESTEL-ADJ 0~15 8
F80 SIF-BPF-WIDE 0~7 3
F81 SIF-BPF-WIDE-LOW 0/1 0
F82 SIF-BPF-WIDE-HIGH 0/1 0
0: 11XX (AUTO)
1: 0011 (PAL-M)
2: 0111 (PAL-N)
3: 0110 (N358)
F84 Pow-Storage 0/1 1
F85 SIF45 GAIN DOWN 0/1 0
F86 S-TRAP OFF 0/1 1
F87 BASS OFFSET -4~+4 0
F88 MID1 OFFSE
T
-4~+4 0
F89 MID2 OFFSE
T
-4~+4 0
F90 MID3 OFFSE
T
-4~+4 0
F91 TREBLE OFFSET -4~+4 0
F92 AVL LEVEL 0~3 0
0:fixto0
1:fixto1
2: AVL in SOUND MENU
F94 AU-ATT AMP 0 (0dB)/1(3dB) 0
0: 10%
1: 30%
2: 50%
3: 70%
4: 90%
F96 R MTX UP 0/1 0
F97 MATRIX ADJ 0~3 0
F98 SAP LEVEL 0/1 0
F99 STEREO SENS 0/1 0
F100 SAP SENS 0/1 0 SAP SENS
SAP LEVEL
STEREO SENS
R MTX UP
MATRIX ADJ
3F95 OSD LEVEL OSD LEVEL
2
AU ATTOUT GAIN
AUDIO AVL LEVEL
F93 AVL OPTION AVL ON
AUDIO EQ MID3
TREBLE
AUDIO EQ MID1
AUDIO EQ MID2
S-Trap
BASS
CONTRAST/BRIGHTNESS INCREASE
GRADUALLY
SIF45 GAIN DOWN
3
SIF BPF WIDE HIGH
F83 COL-SYSTEM COL-SYSTEM
SIF BPF WIDE
SIF BPF WIDE LOW
Cr Pedestal Adj.
Cb Pedestal Adj.
AS-SPEED-DN
AS-SPEED-UP
V-DL Fine
U-DL Fine
BS-Gain
C.ANGLE
AFC1-G
OM-Det
AFC1-G
AFC1-G
TRAP-FINE
TRAP-FINE
BRIGHT (OFFSET)
TRAP-FINE
BRIGHT (OFFSET)
BRIGHT (OFFSET)
CONTRAST(OFFSET)
CONTRAST(OFFSET)
R-DRI (OFFSET)
B-DRI (OFFSET)
G-CUT (OFFSET)
B-CUT (OFFSET)

21S-FX10L
4 – 6
F101 MER 0~255 70
F102 MEL1 0~255 150
F103 MEL2 0~255 156
F104 MEL3 0~255 163
F105 MEL4 0~255 165
F106 MEL5 0~255 170
F107 MEL6 0~255 180
F108 S-St-Point
S-BOOSTER START POINT
21
F109 S-Sp-Point
S-BOOSTER STOP POINT
60
F110 S-Step
S-BOOSTER STEP
7
F111 CONT NEWS
CONTRAST SETTING- NEWS
40
F112 CONT MUSIC
CONTRAST SETTING- MUSIC
50
F113 CONT MOVIE
CONTRAST SETTING- MOVIE
60
F114 BRIGHT NEWS
BRIGHTNESS SETTING- NEWS
0
F115 BRIGHT MUSIC
BRIGHTNESS SETTING- MUSIC
0
F116 BRIGHT MOVIE
BRIGHTNESS SETTING- MOVIE
0
F117 COL NEWS
COLOUR SETTING- NEWS
0
F118 COL MUSIC
COLOUR SETTING- MUSIC
0
F119 COL MOVIE
COLOUR SETTING- MOVIE
+10
F120 SHARP NEWS
SHARPNESS SETTING- NEWS
-10
F121 SHARP MUSIC
SHARPNESS SETTING- MUSIC
0
F122 SHARP MOVIE
SHARPNESS SETTING- MOVIE
5
F123 SURR NEWS
SURROUND SETTING- NEWS
0
F124 SURR MUSIC
SURROUND SETTING- MUSIC
0
F125 SURR MOVIE
SURROUND SETTING- MOVIE
0
F126 TREBLE NEWS
TREBLE SETTING- NEWS
-10
F127 TREBLE MUSIC
TREBLE SETTING- MUSIC
0
F128 TREBLE MOVIE
TREBLE SETTING- MOVIE
+5
F129 BASS NEWS
BASS SETTING- NEWS
-5
F130 BASS MUSIC
BASS SETTING- MUSIC
0
F131 BASS MOVIE
BASS SETTING- MOVIE
+10
F132 EQ BASS NEWS
EQ BASS SETTING- NEWS
0
F133 EQ BASS MUSIC
EQ BASS SETTING- MUSIC
0
F134 EQ BASS MOVIE
EQ BASS SETTING- MOVIE
0
F135 EQ MID1 NEWS
EQ MID1 SETTING- NEWS
0
F136 EQ MID1 MUSIC
EQ MID1 SETTING- MUSIC
0
F137 EQ MID1 MOVIE
EQ MID1 SETTING- MOVIE
0
F138 EQ MID2 NEWS
EQ MID2 SETTING- NEWS
0
F139 EQ MID2 MUSIC
EQ MID2 SETTING- MUSIC
0
F140 EQ MID2 MOVIE
EQ MID2 SETTING- MOVIE
0-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10
0(OFF)/1(ON)
0(OFF)/1(ON)
-30~+30
0(OFF)/1(ON)
-30~+30
-30~+30
-30~+30
-30~+30
-30~+30
-30~+30
-30~+30
-30~+30
0~60
0~60
0~60
0~60
0~60
0~60
S-BOOSTER LEVEL5
S-BOOSTER LEVEL6
S-BOOSTER LEVEL3
S-BOOSTER LEVEL4
S-BOOSTER LEVEL1
S-BOOSTER LEVEL2
S-BOOSTER FREQ.
CHARACTERISTIC CONTROL

21S-FX10L
4 – 7
F141 EQ MID3 NEWS EQ MID3 SETTING- NEWS 0
F142 EQ MID3 MUSIC EQ MID3 SETTING- MUSIC 0
F143 EQ MID3 MOVIE EQ MID3 SETTING- MOVIE 0
F144 EQ TRE NEWS EQ TRE SETTING- NEWS 0
F145 EQ TRE MUSIC EQ TRE SETTING- MUSIC 0
F146 EQ TRE MOVIE EQ TRE SETTING- MOVIE 0
F147 S-BOOST NEWS S-BOOSTER SETTING- NEWS 0
F148 S-BOOST MUSIC S-BOOSTER SETTING- MUSIC 1
F149 S-BOOST MOVIE S-BOOSTER SETTING- MOVIE 1
F150 CORNER UP-LOW EN EW CNUPLOW EN 1
F151 BOW/ANGLE-ON/OFF BOW/ANGLE 1
F152 SHP-NR-OFFSET VIDEO TONE 0
F153 V-FREE60 V-FREE60 1
F154 TAKEOFF TV TAKE-OFF 0
F155 STRAP OFFSET S-TRAP ADJ 0
F156 RGB MUTE TIME 0
F157 H-BLK LEFT H-BLK LEFT 0
F158 H-BLK RIGHT H-BLK RIGHT 00~7
F159 H-STOP DELAY H-START
0: 5ms
1: 10ms
2: 15ms
3: 20ms
1
0~8
0~7
0/1
-16~+16
-15~0
0/1
0/1
0(OFF)/1(ON)
0(OFF)/1(ON)
0(OFF)/1(ON)
-10~+10
0(OFF)/1(ON)
-10~+10
-10~+10
-10~+10
-10~+10
-10~+10

21S-FX10L
5 – 1
TV21S-FX10LService Manual21S-FX10LMarketE
CHAPTER 5. ADJUSTMENT METHOD
V05 SUB-SHP-PRE
34
V06
SUB-SHP-OVER
18
V20
SUB-COLOR-YUV
41
V21 SUB-TINT-YUV 54
V27
VS-CORRECT
35 ADJUST IF NECESSARY
V29 V LINEARIT
Y
37 TO IMPROVE
V43 BOW ADJ 32
F02
SHP-AV-PRE
-10
F03
SHP-YUV-PRE
-14
F06
SHP-AV-OVER
-10
F07
SHP-YUV-OVER
-14
F13
FAO-VOL
81
F14 VIF-G 7
F20 YDL-AV-N3 4
F22 TINT-AV -16
F23 COL-AV +10
F26 R-R +7
F27
R-B
0
F28
B-R
-20
F29
B-B
+9
F30
GAMMA
3
F33
SL-TV 1
F36 AFC2 1
F37
VD-TV 1
F38 VD-AV 2
F39 VD-YUV 0
F49
OSD POS-H
13
F50
OSD POS-V50
48
F51
OSD POS-V60
32
F52
OFFSET-ADJ-COLOR
+3
F53
OFFSET-ADJ-TINT
+9
F55
R-CUT-YUV
-2
F56
G-CUT-YUV
-24
F58
R-DRI-YUV
-1
F59
B-DRI-YUV
+1
F61
CONTRAST YUV OFFSET
+6
F63 BRIGHT AV2 OFFSET +4
F64 BRIGHT YUV OFFSET +17
F65 TRAP 0
F80 SIF-BPF-WIDE 1
F85 SIF45 GAIN DOWN 1
F86 S-TRAP OFF 0
F92 AVL LEVEL 1
F94 AU-ATT AMP 1
F111 CONT NEWS 50
F112 CONT MUSIC 60
F117
COL NEWS
-6
F119
COL MOVIE +6
F120
SHARP NEWS
-6
F122
SHARP MOVIE
+6
F126
TREBLE NEWS
0
F128
TREBLE MOVIE
0
F129
BASS NEWS
0
F131
BASS MOVIE
0
F132
EQ BASS NEWS
-1
F133
EQ BASS MUSIC
+2
F134
EQ BASS MOVIE
+1
F136
EQ MID1 MUSIC
+1
F137
EQ MID1 MOVIE
+1
F138
EQ MID2 NEWS
+1
F139
EQ MID2 MUSIC
-2
F141
EQ MID3 NEWS
+1
F143
EQ MID3 MOVIE
+2
F144
EQ TRE NEWS
-1
F145
EQ TRE MUSIC
+5
F146
EQ TRE MOVIE
+2
F156
RGB MUTE TIME
1
F158
H-BLK RIGHT
3
ADJ ITEM: BUS SET UP (1ST & 2ND STAGE SERVICE DATA)
REMARK21S-FX10L
SERVICE ITEMS

21S-FX10L
5 – 2
O01 LNA TUNER 0
O02 FAO 1
O03 PON-CH 1
O04 ANTENNA BOOSTER 0
O05 AV 1
O06 AV2 1
O07 MTS 1
O08 COMPONENT 2
O09 TONE-CTRL 2
O10 AUTO-OFF 1
O11 LAST POWER 0
O12 SETUP-FLAG 1
O13 AV MODE 1
O14 MP-IN 1
O15 S-BOOSTER 0
O16 FORCE-COL 0
O17 INIT-LANG 1
O18 LANG-SEL 1
O19 ARROW-KEY 1
O20 VOL-TABLE 0
O21 AUTO-JUDGEMENT 1
O22 WHITE-OUT 0
O23 H-SYNC JUDGE 1
O24 CHSET COLOR 0
O25 DEMO 1
O26 FLAT 1
O27 F/R-AV 3
O28 SPEAKER 1
O29 VOL-CURVE 1
ADJ ITEM: OPTION SET UP (3RD STAGE SERVICE DATA)
21S-FX10L
SERVICE ITEMS

21S-FX10L
5 – 3
PIF ADJUSTMENTCHECKING
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION/PROCEDUREWAVEFORM OR OTHERS
1RF-AGC (1) Receive the "US 10 CH HALF Color Bar" signal.*for Auto ADJ
TAKE OVER POINT
Signal Strength: 56 ± 1dBμV (75 ohm open) 1)Receive "NTSC COLOUR BAR" signal
ADJUSTMENT (2) Connect the oscilloscopetoJA402(Tuner's AGC Terminal) as shown in signal strength :56±1dBμV(75ohmo
pen).
(I2C BUS CONTROL) figure 3-1.1) Go to service mode.
OSCILLOSCOPE 2) Go to servicedata V09 , press R/C to operate
(AUTO & MANUAL ADJ)
"Auto-AGC" key and confirm the OK display
on the screen
3)Ifappear red display with NG sign, increase data some
step and please repeat step 2.
BIAS BOX 4) Proceed step 4 & 5 inmanual mode.
TVSET
Bias Box : about 4.5V
Fig. 3-1
(3) Call V09in service mode. Adjust the V09busdatatoobtain theT
uner
outputpindrop 0.1Vbelow maximum voltage.
(4) Change the antenna inputsignal to 63 ~67dBμV, and makes
ure there
isnonoise.
(5)Turn uptheinput signal to 90~95dBμVto be sure that there isno cross
modulationbeat.
FOCUS ADJUSTMENT
NO ADJUSTMENT POIN
T
ADJUSTMENT CONDITION / PROCEDUR
E
WAVEFORM OR REMARK
S
1 FOCUS (1) Receive US4CHLION HEAD Signal (NTSC60Hz).
(2) Press RESET to set Picture NORMAL condition.
(3) Adjust the focus control to get the bestfocusing.
ADJUSTMENT PRECAUTION :Make sure TV Set is in "NORMAL CONDITION" before switch to Service Mode for Adjustment.
Focusing Point(middle
of center andedgeof
monoscope pattern)
+
-
+
-
JA402
0.1V
H-VCO, VIF-VCO & S-TRAP fo ADJUSTMENT
NO ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS
1 H-VCO ADJ (Manual Adj)
(I2C BUS CONTROL) (1) In No signal (RASTER) condition.
(AUTO & MANUAL ADJ)
(2) Go to service mode, choose service data V25.
(3) Connect oscilloscope to IC801 pin13 (H-OUT),adjV25 until freq
become 15.735 ± 0.2KHz.
(Auto Adj)
(1) In No signal (RASTER) condition.
(2) Go to service mode.
(3) Choose service data V25,bypressingR/C"AUTO H-VCO" key, OSD will appear "OK"
at screen.
(4) If appear "NG" pls repeat step 3.
2 VIF-VCO ADJ (Manual Adj) *NOTE:
(I2C BUS CONTROL) (1) In No signal (RASTER) condition. This adjustment must be done after aging
(AUTO & MANUAL ADJ)
(2) Go to service mode, choose service data V14 at least 3 minutes.
(3) Connect oscilloscope to IC801 pin7 (AFT), adj V14 until voltage become
2.5 ± 0.5 V DC (Checking spec : 2.50 ± 1.5 V)
(Auto Adj)
(1) In No signal (RASTER) condition.
(2) Go to service mode, choose service data V14.
(3) Press the R/C "AUTO PIF-VCO" key, OSD will appear "OK" at screen.
(4) If appear "NG" pls repeat step 3.
3S-TRAP fo ADJ (Manual ADJ)
(I2C BUS CONTROL) (1) In No signal (RASTER) condition.
(AUTO & MANUAL ADJ)
(2) Go to service mode, choose service data V26.
(3) Connect oscilloscope to TP 801 or IC801 pin 30 , adj V26 until voltage become Min (below 5 V).
(Auto Adj)
(1) In No signal (RASTER) condition.
(2) Go to service mode, choose service data V26.
(3) Press the R/C "AUTO S-TRAP" key, OSD will appear "OK" at screen.
(4) If appear "NG" pls repeat step 3.

21S-FX10L
5 – 4
HORIZONTAL ,VERTICAL,DEFLECTION LOOP ADJUSTMENT (1)
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS
1V-SHIFT (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz).Figure AB
(I2C BUS CONTROL) (2) Choose the service data V07.
(3) Adjust V07 to align the center of the screen to the geometric center of CRT.
Note: B line (Monoscope middle line) mustsameornearesthigherposition
to the A mark (Tubem
iddle mark),refer to the attach drawing.
OK OK NG
2V-SIZE (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V10.
(to be done after V-shift adj)
(3)AdjustV10 bus data until the overscan become 10 ± 2.5%.
Caution 1: Pls aging TV more than 10 minutes before adjustment
3V-LINEARITY (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the servicedataV29.
(3 )Already preset. (Adjust this unless the linearity is achieved.)
4VS CORRECTION (1) Receive US4 CH LION HEAD Signal (NTSC60Hz).
(I2C BUS CONTROL) (2) Choose the service data V27.
(3 )Already preset. (Adjust this unless the linearity is achieved.)
5 H-SHIFT (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V08.
(3) Adjust the V08 bus data toh
ave a balance position to spec of A=B (as attach drawing).
AB
(4)IfcannotmakeittoA=B, adjust from the best point so that Aslightly smaller than B.
6 H-SIZE (1) Receive US4CHLIONHEAD Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V35
(3) Adjust V35 bus data until the overscan becomes 10 ± 2.5 %.
7PARABOLA (1) Receive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V31
Adjust the 2nd vertical line from the right end of the crosshatch pattern
so that the middle 4 blocks are straight.
(3) Make sure both left / right of 2nd vertical line at optimum point

21S-FX10L
5 – 5
HORIZONTAL ,VERTICAL,DEFLECTION LOOP ADJUSTMENT (2)
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDUREWAVEFORMOROTHERS
8UPPER CORNER (1) Receive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V37
(3) Adjust the 2nd upper vertical line from the right end of the crosshatch pattern
so that the upper line are straight.
(4) Make sure both left / right of 2nd vertical line at optimum point
9 LOWER CORNER (1) Receive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V39
(3) Adjust the 2nd lower vertical line from the right end of the crosshatch pattern
so that the bottom line are straight.
(4) Make sure both left / right of 2nd vertical line at optimum point
10 BOW-ADJ (1) Receive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service dataV43
(3) Set V43 to 32
11 ANGLE ADJ (1) Receive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V41
(3) Adjust the 2nd vertical line from the end of the crosshatch pattern line is straight
(4) Make sure both left / right of 2nd vertical line at optimum point
12 TRAPEZIUM (1) Receive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V33
(3) Adjust the 2nd vertical line from the right end of the crosshatch pattern
so that the D1 (center area of the second vertical line - edge of screen)
and D2 (top area of the second vertical line - edge of screen) are same.
(4)Makesurebothleft / right of 2nd vertical line at optimum point
13 FINAL INSPECTION OF (1) Receive CrossHatch Pattern Signal (NTSC 60Hz).
ADJUSTMENT (2) Please make sure picture distortion (overall picture quality) must be balance at optimum point
TOP / BOTTOM at LEFT / RIGHT corner. A1 A2
(3) If NG, please RE-ADJUST follow step 7to 13 or adjust at NG position to get best picture quality A1 B1 B2
C1 C2
D1 =D
2
D2
D1
D2
D1
A1
B1
C1
A2
D1
B2
D2
C2
~
~
~
~
~
~
OVERALL PICTURE QUALITYMUSTBE
BALANCE AT OPTIMUMPOINT(LEFT
&RIGHT)

21S-FX10L
5 – 6
CLOSED CAPTION ADJUSTMENT
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS
1CLOSED CAPTION (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz)
SET UP (2) Go to service mode, choose service data V22.
(3) Adjust the V22 bus data tohaveab
alance position tos
pec ofA=B
(4) After the left and right symmetrical then V22 data reduce 5 step
AB
SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST ADJUSTMENT(1)
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS
1
SCREEN
(1) Set the service data before adjust CRT cutoff as follows: NOTE:
ADJUSTMENT
a) V01 : 127
Servicedata
R/C key (Hex)
(I2C BUS CONTROL)
b) V04 :127 R-cutoff up A9
c) V15 :127R-cutoff down69
d) V16 : 127 G-cutoff upE9
e) V17:127 G-cutoff down 19
f) V18 : 64 B-cutoff up 99
g) V19 : 64 B-cutoff down 59
(2) Receive the window pattern or US4 CH LION HEADSignal (NTSC 60 Hz)
(3) Go to service mode, get in Y-mute byR/C and set V23 to "1"
(4)Adjustthe Screen so that cut-off line appear in low bright, then judge that whether
the cut-off data appear in Red or Green or Bluecolor, in this conditionbetween V15 = R-CUTOFF,
V16=G-CUTOFF & V17= B-CUTOFF, fix the data of the colorappear in cut-off line and adj the
other two cut-off line sothatcu
t-off line color become white.
(5)Turn the screen VR of FBT so that cut-off linej
ust disappear and use R/C tosetV23 to "0".
Next disable the Y-Mute so that the picture appear in normal mode
2WHITE BALANCE ADJ(1)WHITE (HIGH BEAM)
(to be done after screen First use Minolta Color Analyzer CA100, let the gun pointat Dark White position
adj) (as drawing attach), Adj V04 until LUMINANCE Y become 5 cd/m2,thenlet thegun
(I2C BUS CONTROL) point at White position ( as drawing attach), Adj V01 until LUMINANCE Y
(CH 23 50IRE become: 150 cd/m2.White Dark
WINDOW PATTERN) Adj the V18(R DRIVE) , V19(B DRIVE) until the axis of color temperature become White
10700° X : 0.278 , Y : 0.280
(2) DARK WHITE (LOW BEAM)
Let the gun point at Dark White position, ifthe color temperature data shift away from
the data adjusted in Item 1 Screen adjustment,adjust V15,V16,V17.
Please fix thefirst colour appears in Screen adj item step (4) is fixed ,
adjtheother twos
othat to obtainthe similar axis as above*Note: Use RF CH2350IRE window pattern
** Repeat step 1 & 2 to get a regulated position
50% WHITE

21S-FX10L
5 – 7
SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST ADJUSTMENT(2)
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS
3 SUB-BRIGHTNESS (1) In CH 23 50IRE window pattern signal condition.
(to be done after screen, (2) Using Minolta Color Analyzer CA-100, let the gun point at Dark White position
white balance adj) (as attach drawing), adjust V04 Bus data until BRIGHTNESS Y =1.5cd/m2
(I2C BUS CONTROL)
4SUB-CONTRAST (1) In CH 23 50IRE window pattern signal condition.
(to be done after screen, (2) Using Minolta Color Analyzer CA-100, let the gun point at White position
white balance adj, (as attach drawing), adjust V01 Bus data until BRIGHTNESS Y = 150cd/m2
sub-brightness adj)
(I2C BUS CONTROL) ** NOTE: Allowable Data for V01 >=90, even Y can't match the spec
White
5 BEAM CURRENT CHECK (1) Receive US 4 CH LION HEAD Signal (NTSC 60 Hz).
(2)Press R/C to set Picture NORMAL condition.
(3) Connect the DC miliammeter between TP 603 ( +)&TP602(-)
(Full Scale: 3mA Range).
(4) Beam current must be within : 1000 ± 100μA
US14
Dark White
US14
NTSC CHROMA ADJUSTMENT
NO ADJUSTMENT POIN
T
ADJUSTMENT CONDITION / PROCEDUR
E
WAVEFORM OR REMARK
S
1 SUB-TINT (1) Receive the "US 10 CH HALF Color Bar" signal.
(2) Connect the oscilloscope to JA410 or TP853 BLUE-OUT
(I2C BUS CONTROL)
Range : 500mV/Div (AC) (Use Probe 10:1)
Sweep time : 10μsec/Div
(3) Select the servicedata V02 . On Y-mute using the R/C.
(4) Adjust the V02 (Sub tint) data to obtain the waveform as shown in Figure 1.1
(B-Amp Base (TP853) must be in stepping level)
*REMARK : PLEASE MAKE SUREUSE RF SIGNAL DURING SUB TINT ADJUSTMENT
Fig 1-1
2S
UB COLOR (1) Receive the "US 10 CH HALF Color Bar" signal.
(2) Make the image normal with the remote controller.
(I2C BUS CONTROL) (3) Connect the oscilloscope to JA401 (TP851) RED-OUT.
(to be done after
sub tint adj) Range : 500mV/Div (AC) ( Use Probe 10:1)
Sweep time : 10μsec/Div
(4) Select the service data V03. Adjust the V03 (Sub color) data to obtain the waveform
adjustment showninFig. 1-2.
(5) Fig 1.2 waveforms shows that the 75% white & red portions of color bar at the same level
*REMARK : PLEASE MAKE SURE USE RF SIGNAL DURING SUB COLOUR ADJUSTMENT
Fig 1-2
MS LEVEL ADJUSTMENT
NO ADJUSTMENT POIN
T
ADJUSTMENT CONDITION / PROCEDUR
E
WAVEFORM OR REMARK
S
1MS LEVEL (1) Receive the "US 10 CH HALF Color Bar" signal.
ADJUSTMENT (2) Connect the oscilloscope to IC3003 pin 17 ( C3014 -VE).
(I2C BUS CONTROL) (3) Setthe sound volume control more than 1.
(4) Adjust the bus data M01 untilthe voltage of IC3003 pin 17 (C3014 -VE) become as follows:
530m (+18m,-35m) Vrms
WY
Cy G
100% WHITE
Mg RB

21S-FX10L
5 – 8
PROTECTOR OPERATION CHECKING
NO
ADJUSTMENT POINT
WAVEFORM OR OTHERS
1 H, V PROTECTOR (1) Receive US 4 CH LION HEAD Signal (NTSC 60 Hz).
(2) Connect outputofBiasBoxtoD602 cathode (C602 positive).
(3) Set voltage of Bias Box to 18V and make sure the protectorisnot working.
(4) Set voltage of Bias Box to 28.5V.Makesur
e the protector isfunctioned, horizontal oscilation stop
and picture disappear.
(5)PullouttheACcordatle
ast 4 second before plugging in again (to make sure

-COM has
been reset) for the set to recover from protector mode
2 OTHER PROTECTOR (1) Once finish rectified Electrolytic Capacitor short testing in+Bline,
check all possible damaged components on +B line.
(Use random selected set for inspection)
A/V INPUT & OUTPUT CHECKING
NO
ADJUSTMENT POINT
WAVEFORM OR OTHERS
1 VIDEO AND AUDIO (1) Receive the "US 10 CH HALF Color Bar" signal.
OUTPUT CHECK (2) Terminate the Video output with a 75 ohm impedance. NOTE: When FAO is set to ON, SPEAKER will
( At signal is standard Color Bar Y/C=1/1, 87.5% Mod.) automatically turn OFF. TV volume control
Make sure the output is as specified (1.0Vp-p±3dB). is disabled
(3) Terminate the Audio output with a 47K ohm impedance.
( 400 Hz 100 % Mod. 47 k, VOL Max. )
(a)Goto feature menu, set the FAO to OFF
Make sure the O/P is as specified (2.5 Vp-p ± 0.5Vp-p).
(b)Gotofeat
ure menu, set the FAO toON
Make sure the O/P is as specified (1.2 Vp-p ± 0.3Vp-p).
2 VIDEO AND AUDIO (1) Using the INPUT key on the remote controller, make sure that the modes change in order of
INPUT CHECK TV, COMPONENT, INPUT1,INPUT2 & TV again and the video & audio output are according
to the input terminal for each mode.
(2) Video cross-talk INPUT toTVchecking :
a) When connect INPUT1 input, check TV also
b) When connect INPUT2 input, check TV also
3 COMPONENT IN (1) Connect YUV & Audio signal to Component In terminal and Audio terminal.
CHECK (2) Using the INPUT key on the remote controller, press it until the modes change to COMPONENT,
confirm output is appear.
ADJUSTMENT CONDITION / PROCEDURE
ADJUSTMENT CONDITION / PROCEDURE