Sharp 21GFX10L-A Schematic
21G-FX10L(A)
SERVICE MANUAL
S61015821GFX10L(A)
COLOUR TELEVISION
Chassis No. GA-8P (VE)
MODEL
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.
21G-FX10L(A)
CONTENTS
Page
IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................................... 1-1
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
ELECTRICAL SPECIFICATIONS
POWER INPUT.......................... AC 110-220 V, 50/60 Hz
POWER RATING .................................................... 78W
PICTURE SIZE ............................ 1,239 cm
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 2pcs
2
(192sq inch)
SPEAKER
SIZE ........................................................ 9 x 5cm, 2pcs
VOICE COIL IMPEDANCE .................16 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.
This document has been published to be used for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
21G-FX10L(A)
TV21G-FX10L(A)Service Manual21G-FX10L(A)MarketE
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:
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
3. Semiconductor heat sinks are potential shock
hazards when the chassis is operating.
4. The chassis in this receiver has two ground systems
which are separated by insulating material. The nonisolated (hot) ground system is for the B+ voltage
regulator circuit and the horizontal output circuit. The
isolated ground system is for the low B+ DC 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 picture tube ground and the anode lead. (AC
line cord should be disconnected from AC
outlet.)
1. Picture tube in this receiver employs integral
implosion protection.
2. Replace with tube of the same type number for
continued safety.
3. Do not lift picture tube by the neck.
4. Handle the picture tube only when wearing
shatterproof goggles and after discharging the high
voltage anode completely.
X-RADIATION AND HIGH VOLTAGE LIMITS
1. Be sure all service personnel are aware of the
procedures and instructions covering X-radiation.
The only potential source of X-ray in current solid
state TV receivers is the picture tube. 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 Xradiation is capable of penetrating the shell of the
picture tube including the lead in the glass material.
The important precaution is to keep the high voltage
below the maximum level specified.
2. It is essential that 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.
1 – 1
IMPORTANT SERVICE SAFETY PRECAUTION
(Continued)
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks.
1. Inspect all lead dress to make certain that leads are
not pinched or that hardware is not lodged between
the chassis and other metal parts in the receiver.
2. Inspect all protective devices such as non-metallic
control knobs, insulating materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacity networks, mechanical
insulators, 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.
21G-FX10L(A)
•
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 nonpolarized adapter plug must be used only for the
purpose of completing these check.)
Any current measured must not exceed 0.5 milliamp.
Any measurements not within the limits outlined
above indicate of a potential shock hazard and
corrective action must be taken before returning the
instrument to the customer.
DVM
AC SCALE
1.5k ohm
10W
SAFETY NOTICE
Many electr ical 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.
TO EXPOSED
METAL PARTS
For continued protection, replacement parts must be
identical to those used in the or iginal 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.
"
CONNECT TO
KNOWN EARTH
GROUND
1 – 2
21G-FX10L(A)
TV21G-FX10L(A)Service Manual21G-FX10L(A)MarketE
CHAPTER 2. LOCATION OF USER'S CONTROL
[1] LOCATION OF USER'S CONTROL
AV
a
AV
AV
AV
2 – 1
TV21G-FX10L(A)Service Manual21G-FX10L(A)MarketE
CHAPTER 3. INSTALLATION AND SERVICE INSTRUCTIONS
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.
21G-FX10L(A)
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 shor t 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
Service R/C.
4. The voltage should be approximately 23kV (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.
using
3 – 1
21G-FX10L(A)
TV21G-FX10L(A)Service Manual21G-FX10L(A)MarketE
CHAPTER 4. SERVICE MODE
1. Service mode is switched by SERVICE key, CH UP + VOL DOWN when reset.
2. Service mode is c ancelled by SERVICE key during Service mode.
3. Service mode can be switched to the following 5 modes via MENU k ey:
SERVICE MODE
Adjustment mode
Setting mode
Confirmation mode
Option mode
NVM Edit mode
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
First mode of service when entering by
SERVICE key.
First mode of service when entering by
2 local keys.
4 – 1
21G-FX10L(A)
(
g
(
(
AUTO ADJUSTMENT
H-VCO
1. When there is H-VCO auto adjustment key input at item
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), intelligent monitor output, IM input mode are recovered.
H-VCO, auto adjustment will be implemented.
RF-AGC
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
ent monitor output, IM input mode are recovered.
PIF-VCO
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)intelligent 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)intelligent monitor output, IM input mode are recovered.
4 – 2
21G-FX10L(A)
Memory Map Data
Caution:
To get into t he s ervice mode, one of the way s is press direc t key for service items.
There is three s tage of Service Mode data
First stage
data from V01 ~ M01
to go into sec ond s tage of service m ode data, pres s MENU key
Second stage
data from F01 ~ F160
to go into third st age of s ervice mode data, press MENU k ey
Third stage
data from O01 ~ O31
DATA INITIAL
LENGTH DATA
V01 0~127 127 127 ADJ
V02 0~127 64 64 ADJ
V03 0~127 64 64 ADJ
V04 0~255 128 128 ADJ
V05 0~63 41 44 *FIX
V06 0~63 41 24 *FIX
V07 0~7 4 4 ADJ
V08 0~31 16 16 ADJ
V09 0~127 127 127 AUTO
V10 0~63 32 32 ADJ
V11 -7~+7 0 0 FIX
V12 -15~ +15 0 0 FIX
V13 -31~ +31 0 0 FIX
V14 0~63 32 32 AUTO
V15 0~255 127 127 ADJ
V16 0~255 127 127 ADJ
V17 0~255 127 127 ADJ
V18 0~127 64 64 ADJ
V19 0~127 64 64 ADJ
V20 0~127 64 64 FIX
V21 0~127 64 64 FIX
V22 0~255 32 32 ADJ
V23 0~2 0 0 FIX
0~127 (O20= 0) 127 115
0~255 (O20= 1) 255 -
V25 0~7 4 4 AUTO
V26 0~127 64 64 AUTO
V27 0~63 36 30 *FIX
ADJUST IF NECESS ARY TO
IMPROVE
V28 -13~ +13 0 0 FIX
V29 0~63 35 36 *FIX
ADJUST IF NECESS ARY TO
IMPROVE
V30 -13~ +13 0 0 FIX
V31 0~63 32 32 FIX
V32 -13~ +13 0 0 FIX
V33 0~63 32 32 FIX
V34 -13~ +13 0 0 FIX
V35 0~63 32 32 FIX
V36 -13~ +13 0 0 FIX
V37 0~63 32 32 FIX
V38 -13~ +13 0 0 FIX
V39 0~63 32 32 FIX
V40 -13~ +13 0 0 FIX
V41 0~63 31 31 FIX
V42 -13~ +13 0 0 FIX
V43 0~63 31 31 FIX
V44 -13~ +13 0 0 FIX
V45 0~127 25 25 FIX
V46 0~127 95 95 FIX
M01 0~15 10 10 FIX
Auto Adjustment Item
ķ
H-VCO ,ĸRF-AGC,ĹVIF-VCO,ĺS-TRAP
FIX/ ADJ/AUTO
V-SHIFT50
H-SHIFT50
V-SIZE50
SUB-SHP-PRE
SUB-SHP-OVER
V-SHIFT
H-SHIFT
V-SIZE
VS-CORRECT50
VLINEARITY
PARABOLA
PARABOLA50
H-VCO
REMARK
EEPROM ITEMS
OSD
RF-AGC
SETTING DATA
ANGLE ADJ50
Remark: * Initial Data different with Sett ing Data
MTS-ATT
S-TRAP ADJ START
S-TRAP STOP
BOW ADJ50
BOW ADJ
ANGLE ADJ
S-TRAP
B-CUT
R-DRI
B-DRI
SUB-COLOR-YUV
SUB-VOL
LOW ER CORNER50
SUB-TINT -YUV
CC-POS
Adjus tmet M ode (First St age)
SUB-CON
SUB-TINT
SUB-BRI
SUB-COL
LOW ER CORNER
H-SIZE
UPPER CORNER50
TRA P E ZIUM5 0
H-SIZE50
UPPER CORNER
VIF-VCO
V24
*FIX
R-CUT
G-CUT
TRA P E ZIUM
VLINEARITY50
SCREEN CUT OFF
VS-CORRECT
TV21G-FX10L(A)Service Manual21G-FX10L(A)MarketE
CHAPTER 5. ADJUSTMENT METHOD
5 – 1
SETTING MODE (Second Stage)
DATA INITIAL
LENGTH DATA
F01 0/1 0 0 FIX
F02 -16~+16 0 -5 *FIX
F03 -16~+16 0 0 FIX
F04 -31~+31 0 0 FIX
F05 -31~+31 0 0 FIX
F06 -16~+16 0 -5 *FIX
F07 -16~+16 0 0 FIX
F08 -31~+31 0 0 FIX
F09 -31~+31 0 0 FIX
F10 -15~0 -10 -10 FIX
F11 0/1 0 0 FIX
F12 0~63 30 30 FIX
0~127 (O20=0) 120 81
0~255 (O20=1) 246 -
F14 0~7 5 7 *FIX
F15 0~7 5 5 FIX
F16 0~7 5 5 FIX
F17 0~7 5 5 FIX
F18 0~7 5 5 FIX
F19 0~7 5 5 FIX
F20 0~7 5 4 *FIX
F21 0~7 0 0 FIX
F22 -32~+32 +6 -8 *FIX
F23 -32~+32 0 +10 *FIX
F24 -31~+31 +24 +24 FIX
F25 -31~+31 0 0 FIX
F26 -32~+32 +3 +7 *FIX
F27 -32~+32 -2 0 *FIX
F28 -32~+32 -8 -20 *FIX
F29 -32~+32 +6 +9 *FIX
F30 0~3 1 3 *FIX
F31 0~3 0 0 FIX
F32 0~3 0 0 FIX
F33 0~7 2 1 *FIX
F34 0~7 2 2 FIX
F35 0~7 0 0 FIX
F36 0~3 0 1 *FIX
F37 0~7 5 1 *FIX
F38 0~7 7 2 *FIX
F39 0~7 1 0 *FIX
F40 0/1 1 1 FIX
F41 0/1 1 1 FIX
F42 0/1 0 0 FIX
F43 0/1 0 0 FIX
F44 0/1 0 0 FIX
F45 0/1 0 0 FIX
F46 0/1 0 0 FIX
F47 0/1 1 1 FIX
F48 0~31 0 0 FIX
F49 0~31 0 10 *FIX
F50 1~55 38 48 *FIX
F51 1~50 23 37 *FIX
F52 -32~+32 +10 +17 *FIX
F53 -32~+32 +2 +8 *FIX
F54 0/1 1 1 FIX
F55 -63~+63 0 0 FIX
F56 -63~+63 0 0 FIX
F57 -63~+63 0 0 FIX
F58 -63~+63 0 0 FIX
F59 -63~+63 0 0 FIX
B-DRI-YUV
Remark: * Initial Data different with Setting Data
R-CUT-YUV
G-CUT-YUV
B-CUT-YUV
R-DRI-YUV
OSD POS-V60
OFFSET-ADJ-COLOR
OFFSET-ADJ-TINT
WAITガMDガTIME R
CP
CC LEV EL
OSD POS-H
OSD POS-V50
FBP-TV
FBP-AV
FBP-YUV
C.Clip Level
VD-YUV
AS-TV
AS-AV
AS-YUV
SL-YUV
AFC2
VD-TV
VD-AV
BS-D
BS-C
SL-TV
SL-AV
R-B
B-R
B-B
GAMMA
COL-AV
COL-P
COL-N3
R-R
YDL-AV-P
YDL-AV-N3
YDL-YUV
TINT-A V
YDL-TV
YDL-TV-P
YDL-TV-N3
YDL-AV
RGB-CLIP
E-SAVE
VIF-G
FAO-VOL
SHP-YUV-OVER
SHP-P-OVER
SHP-N3-OVER
SHP ANT-ON II OFFSET
EEPROM ITEMS
SHP-P-PRE
SHP-N3-PRE
SHP-AV-OVER
ABCL-Gain
SHP-AV-PRE
SHP-YUV-PRE
OSD
FIX/ADJ/AUTO
SETTING DATA
F13
*FIX
21G-FX10L(A)
5 – 2
21G-FX10L(A)
SETTING MODE (Second Stage)
DATA INITIAL
LENGTH DATA
F60 -63~+63 0 0 FIX
F61 -63~+63 0 0 FIX
F62 -63~+63 0 -25 *FIX
F63 -15~+15 +1 +4 *FIX
F64 -63~+63 0 0 FIX
F65
0~3 2 0
*FIX
F66
0~3 2 2
FIX
F67
0~3 2 2
FIX
F68 0~3 0 0 FIX
F69 0~3 3 3 FIX
F70 0~3 3 3 FIX
F71
0/1 0 0
FIX
F72
0~2 0 0
FIX
F73
0/1 0 0
FIX
F74
0~3 0 0
FIX
F75
0~3 0 0
FIX
F76
0/1 0 0
FIX
F77
0/1 0 0
FIX
F78
0~15 8 8
FIX
F79
0~15 8 8
FIX
F80
0~7 3 1
*FIX
F81 0/1 0 0 FIX
F82 0/1 0 0 FIX
0: 11XX (AUTO)
1: 0011 (PAL-M)
2: 0111 (PAL-N)
3: 0110 (N358)
4: 10XX (AUTO1)
F84
0/1 1 1 FIX
F85
0/1 0 0
FIX
F86
0/1 1 0
*FIX
F87
-4~+ 4 0 0 FIX
F88
-4~+ 4 0 0
FIX
F89
-4~+ 4 0 0
FIX
F90
-4~+ 4 0 0
FIX
F91
-4~+ 4 0 0 FIX
F92
0~3 0 1 *FIX
0: fix to 0
1: fix to 1
2: AVL in
SOUND MENU
F94
0 (0dB)/1(3dB) 0 1 *FIX
0: 10%
1: 30%
2: 50%
3: 70%
4: 90%
F96
0/1 0 0 FIX
F97
0~3 0 0 FIX
F98
0/1 0 0 FIX
F99
0/1 0 0 FIX
F100
0/1 0 0 FIX
F101
0~255 70 70 FIX
F102
0~255 150 150 FIX
F103
0~255 156 156 FIX
F104
0~255 163 163 FIX
F105
0~255 165 165 FIX
F106
0~255 170 170 FIX
F107
0~255 180 180 FIX
F108 0~60 21 21
FIX
EEPROM ITEMS
OSD
SETTING DATA
FIX/ADJ/AUTO
SAP SENS
AVL OPTION
MER
MEL1
S-St-Point
MEL3
Remark : * Initial Data different with Setting Data
TREBLE OFFSET
AVL LEVEL
RMTXUP
MEL4
MEL5
MEL6
F93
2
AU-ATT AMP
MEL2
MATRIX ADJ
SAP LEVEL
STEREO SENS
OSD LEVEL
3
F95
MID1 OFFSET
Pow-Storage
SIF45 GAIN DOWN
S-TRAP OFF
BASS OFFSET
MID2 OFFSET
MID3 OFFSET
˱ˉˠ˨
COL-SYSTEM
AS-SPEED-DN
AS-SPEED-UP
CR-PEDESTEL-ADJ
CB-PEDESTEL-ADJ
SIF-BPF-WIDE
SIF-BPF-WIDE-LOW
SIF-BPF-WIDE-HIGH
OM-DET
˞˯ˉˣ˽
C-ANGLE
˲ˉˠ˨
TRA P - N3
AFC1-Gain-TV
AFC1-Gain-AV
AFC1-Gain-YUV
BRIGHT AV2 OFFSET
BRIGHT YUV OFFSET
TRA P
TRA P - P
CONTRAST OFFSET
CONTRAST YUV OFFSET
BRIGHT OFFSET
F833FIX
3
3
*FIX
FIX
1
5 – 3
SETTING MODE (Second Stage )
DATA INITIAL
LE NGTH DA TA
F109 0~60 60 60
FIX
F110 0~60 7 7
FIX
F111 0~60 40 40
FIX
F112 0~60 50 50
FIX
F113 0~60 60 60
FIX
F114 -30~+30 0 0
FIX
F115 -30~+30 0 0
FIX
F116 -30~+30 0 0
FIX
F117 -30~+30 0 0
FIX
F118 -30~+30 0 0
FIX
F119 -30~+30 +10 +10
FIX
F120 -30~+30 -10 -10
FIX
F121 -30~+30 0 0
FIX
F122 -30~+30 +5 +5
FIX
F123 0(OFF)/1(ON) 0 0
FIX
F124 0(OFF)/1(ON) 0 0
FIX
F125 0(OFF)/1(ON) 0 0
FIX
F126 -10~+10 -10 -10
FIX
F127 -10~+10 0 0
FIX
F128 -10~+10 +5 +5
FIX
F129 -10~+10 -5 -5
FIX
F130 -10~+10 0 0
FIX
F131 -10~+10 +10 +10
FIX
F132 -10~+10 0 0
FIX
F133 -10~+10 0 0
FIX
F134 -10~+10 0 0
FIX
F135 -10~+10 0 0
FIX
F136 -10~+10 0 0
FIX
F137 -10~+10 0 0
FIX
F138 -10~+10 0 0
FIX
F139 -10~+10 0 0
FIX
F140 -10~+10 0 0
FIX
F141 -10~+10 0 0
FIX
F142 -10~+10 0 0
FIX
F143 -10~+10 0 0
FIX
F144 -10~+10 0 0
FIX
F145 -10~+10 0 0
FIX
F146 -10~+10 0 0
FIX
F147 0(OFF)/1(ON) 0 0
FIX
F148 0(OFF)/1(ON) 1 1
FIX
F149 0(OFF)/1(ON) 1 1
FIX
F150 0/1 1 1
FIX
F151 0(OFF)/1(ON) 1 1
FIX
F152 -15~0 0 0
FIX
F153 0/1 1 1
FIX
F154 0/1 0 0
FIX
F155 -16~+16 0 0
FIX
F156 0 ~ 8 0 1
*FIX
F157 0 ~ 7 0 0
FIX
F158 0 ~ 7 0 3
*FIX
F159
0: 5ms
1: 10ms
2: 15ms
3: 20ms
11
FIX
F160 0/1 0 0 FIX
EEPROM ITEMS
OSD
SETTING DATA
FIX/ADJ/AUTO
Remark: * Initial Data different with Setting Data
EQ TRE MUSIC
EQ MID2 NEWS
EQ MID2 MUSIC
EQ MID2 MOVIE
EQ MID3 NEWS
EQ TRE NEWS
SYS MUTE
H-STOP DE LAY
BOW/ANGLE-ON/OFF
SHP-NR-OFFSET
RGBMUTETIME
H-BLK RIGHT
V-FREE60
TAKEOFF TV
H-BLK LEFT
EQ TRE MOVIE
S-BOOST NEWS
S-BOOST MUSIC
S-BOOST MOVIE
EQ MID3 MUSIC
EQ MID3 MOVIE
STRAP OFFSET
CORNER UP -LOW E N
BASS NEWS
EQ MID1 NEWS
EQ MID1 MUSIC
EQ MID1 MOVIE
BASS MUSIC
BASS MOVIE
EQ BASS NEWS
EQ BASS MUSIC
EQ BASS MOVIE
SURR MOVIE
TRE B L E NE W S
TREBLE MUSIC
TRE B L E MOV IE
SHARP MUSIC
SHARP MOVIE
SURR NEWS
SURR MUSIC
COL NEWS
COL MUS IC
COL MOVIE
SHARP NEWS
CONT MOVIE
BRIGHT NEWS
BRIGHT MUSIC
BRIGHT MOVIE
CONT NE W S
CONT MUSIC
S-Step
S-Sp-Point
21G-FX10L(A)
5 – 4
21G-FX10L(A)
INITIAL
DATA
0:ALPS
1 : MATSUS HITA
O02 FAO
DIS/ENA 0/1 1 0
O03 * PON-CH
DIS/ENA 0/1 0 1
O04
ANTENNA BOOSTER DIS/ENA 0/1 0 0
O05 AV
DIS/ENA 0/1 1 1
0:AV1
1:AV2
O07 MTS
DIS/ENA 0/1 1 0
0 : wit hout COMPONENT
1:COMPONENT(sharewithAV1)
2 : COMPONENT (individual)
0 : W it hout Sound Menu
1:TONE
2:EQUALIZER
3 : W it hout Sound Menu (GA8P)
O10 AUTO-OFF
DIS/ENA 0/1 1 1
0 : Standby Mode
1 : Last Memory
0:NoSetUp
1:AUTOSetUp
O13 AV MODE
DIS/ENA 0/1 1 0
O14 MP-IN
DIS/ENA 0/1 0 0
O15 S-BOOSTER
DIS/ENA 0/1 0 0
O16
FORCE-COL DIS/ENA 0/1 0 0
0:ENGLISH
1 : SPANISH
2 : PORTUGUES E
0:CH/,VOL+/-
0 : 7-bit v olume t able
1 : 8-bit v olume t able
0 : EZ Setup Same as GA6 Brazil
1 : EZ Setup Same as GA6 LAG
O22 W HITE-OUT
DIS/ENA 0/1 0 0
O23 H-SYNC JUDGE DIS/ENA 0/1 1 1
O24 CHSET COLOR DIS/ENA 0/1 0 0
O25 DEMO DIS/ENA 0/1 1 1
O26 FLAT
DIS/ENA 0/1 1 1
0:NoAV
1 : Rear
2:Front
3 : Rear & Front
O28 SPEAKER
DIS/ENA 0/1 1 0
0 : Old Vol-Table
1 : New Vol-Table
0 : -105 ~ 0
1: -60~0
2: -30~0
0:-60~ +60
1:-30~ +30
* POWER ON BY CH-UP / DOWN KE Y.
O29
VOL-CURVE
0
Setting Data
0/1
0/1
0…3
0
0…2
1
O09
TONE -CTRL
AV2
COMP ONENT
3
F/R-AV
O27
1
0…3
1
O21
AUTO-JUDGEMENT
1
0/1
O19
Setting Mode (Third stage)
O17
INIT-LANG
Data
OPTION FUNCTION
ARROW-KEY
1
O20
VOL-TABLE
0
O08
O18
LANG-SE L
7
Portuguese / French / Spanish
0/1
Desc ription
Range
O01
LNA TUNER
0/1
O06
0
0/1
SETUP-FLAG
O12
1
O11
LAST POWER
0/1
0
0…2
0
1
0
3
0
1
0/1
0
1
1
0
0
1
3
0…7
O30
O31
CONTRAST TABLE
BRIGHTNESS TABLE
1
0…200
0/1
0
1:/, /
5 – 5
T
E
S
ADJUSTMENT PRECAUT
CHECKING
T
DJUSTMEN
PIF A
T
TMENT POIN
ADJUS
NO
1
CUS ADJUSTME
FO
NO
1 FOCUS (1) Receive
RF-AGC
KE OVER P
A
T
USTMENT (2) Connect t
ADJ
(I2C BUS CONTROL) figure 3-1
UTO & MANUAL
(A
N
USTMENT POIN
J
AD
(1) Recei
OINT
DJ)
A
(3) Call V0
(4) Ch
i
(5)T
modulationbeat.
T
(2) Press RESET to set Picture N
(3) Adjust the focus control to get the bes
ke sure TV Set is in "NORMAL CON
ION :Ma
ADJUSTMENT CONDITION/PROCEDUR
ve the "US 10 CH HALF Color B
Strength: 56 ± 1dBμV (75 ohm open)
Signal
he oscillos
.
0.1V
9 i
outputpindrop 0.1V b
ge the antenna inpu
n
a
e.
onois
n
s
rn uptheinput s
u
S
U
e
cop
OSCILLO
+
-
+
-
Bias Box : about 4.5V
Fig. 3
n service mode. Adjust the V09busdatatoobtain theT
elow maximum voltage.
t
ignal to 9
ION HEAD Signal
4CHL
ar" signal
oJA402(Tuner's AGC Terminal) as shown in
t
SCOPE
BIAS BOX
-1
signal to 63 ~67dBμV, and makes
~95dBμVto be sure that the
0
ADJUSTMENT
(NTSC60Hz).
ORMAL condition.
focusing.
t
.
402
JA
SET
V
T
u
re i
NDITION / PROCE
CO
re the
n
s
uner
re
o cross
DU
DITION" b
E
R
fore switch to Service Mode for Adj
e
for Auto ADJ
*
1)Receive "NTSC C
gnal strength :56±1dBμV(75ohmo
i
s
ervice mode.
1) Go to s
to servic
2) Go
"Auto-AGC" key and confirm the OK display
on the screen
)Ifappear red display w
3
ep and pleas
t
s
4) Proceed step 4 & 5 i
stment.
u
WAVEFORM OR OTHERS
nal
sig
UR BAR"
O
L
O
data V09 , press R/C to operate
e
gn, inc
i
th NG s
i
e repeat step 2.
n
WAVE
.
mode
manual
FORM OR REMARK
Focusing Poin
of ce
monoscope pattern)
21G-FX10L(A)
en).
p
rease data some
t(middle
dedgeof
an
ter
n
H-VCO, VIF-VCO & S-TRAP fo ADJUSTMENT
NO
ADJUSTMENT POINT
1 H-VCO ADJ
(I2C BUS CONTROL)
(AUTO & MANUAL ADJ)
2 VIF-VCO ADJ
(I2C BUS CONTROL)
(AUTO & MANUAL ADJ)
3
S-TRAP fo ADJ
(I2C BUS CONTROL) (1) In No signal (RASTER) condition.
(AUTO & MANUAL ADJ)
(Manual Adj)
(1) In No signal (RASTER) condition.
(2) Go to service mode, choose service data
(3) Connect oscilloscope to IC801 pin13 (H-OUT)
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
at screen.
(4) If appear "NG" pls repeat step 3.
(Manual Adj)
(1) In No signal (RASTER) condition.
(2) Go to service mode, choose service data V14
(3) Connect oscilloscope to IC801 pin7 (AFT)
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"
(4) If appear "NG" pls repeat step 3.
(Manual ADJ
(2) Go to service mode, choose service data V26.
(3) Connect oscilloscope to TP 801 or IC801 pin 30
(Auto Adj)
(1) In No signal (RASTER) condition.
(2) Go to service mode, choose service data
(3) Press the R/C "AUTO S-TRAP" key, OSD will appear "OK" at screen.
(4) If appear "NG" pls repeat step 3.
)
ADJUSTMENT CONDITION / PROCEDURE
V25.
,adjV25 until freq
"AUTO H-VCO" key, OSD will appear "OK"
, adj V14 until voltage become
key, OSD will appear "OK" at screen.
, adj V26 until voltage become Min (below 5 V).
V26.
WAVEFORM OR OTHERS
*NOTE:
This adjustment must be done after aging
at least 3 minutes.
5 – 6
21G-FX10L(A)
HORIZONTAL, VERTICAL, DEFLECTION LOOP ADJUSTMENT
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS
1 V-SHIFT (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz). Figure A B
(I2C BUS CONTROL)
(2) Choose the service dat a
V07
.
(3) Adjust
V07
to align t he cent er of the screen to the geometric center of CRT.
Note: B line (Monoscope middle line) must same or nea rest higher position
to the A ma rk (Tube middle mark), refer to the attach draw ing.
OK OK NG
2 V-SIZE (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz).
(I2C BUS CONTROL)
(2) Choose the service dat a
V10
.
(to be done after
(3) Adjust
V10
bus data unt il t he over scan become
10 ± 2.5 % .
V-shift adj)
Caution 1: Pls aging TV more than 10 minutes before adjustment
3 V-LINEARITY (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz).
(I2C BUS CONTROL)
(2) Choose the service dat a
V29
.
(3) Already pres et. (Adjust this unless the linearity is achieved.)
4 VS CORRECT I ON (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz).
(I2C BUS CONTROL)
(2) Choose the service dat a
V27
.
(3) Already pres et. (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 dat a
V08
.
(3) Adjus t the
V08
bus data t o have a balance position to spec of
A=B
(as att ach drawing). A
B
(4) If c annot make it to
A=B
, adjust from the bes t point so t hatAslightly smaller thanB.
5 – 7
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