SERVICE MANUAL
21V-FW100S
COLOUR TELEVISION
Chassis No. GA6
21V-FW100S
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.
S9811721VFW100S
MODEL
ELECTRICAL SPECIFICATIONS
Chassis No. GA6
CONTENTS
?IMPORTANT SERVICE SAFETY PRECAUTION ........................................................................................... ........ 1-1
Page
?LOCATION OF USER’S CONTROL ...................................................................................................................... 2-1
?INSTALLATION AND SERVICE INSTRUCTIO NS ................................................................................................. 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 .....................................................85W
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 2pcs
SPEAKER
SIZE ........................................................ 2” X 3.5”, 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.
SHARP CORPORATION
www.electronicsrepair.net
21V-FW100S
1 – 1
TV21V-FW100SService Manual21V-FW100SMarketE
CHAPTER 1. IMPORTANT SERVICE SAFETY PRECAUTION
[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.
21V-FW100S
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
•
•
•
•
21V-FW100S
2 – 1
TV21V-FW100SService Manual21V-FW100SMarketE
CHAPTER 2. LOCATION OF USER'S CONTROL
[1] LOCATION OF USER'S CONTROL
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21V-FW100S
3 – 1
TV21V-FW100SService Manual21V-FW100SMarketE
CHAPTER 3. INSTALLATION AND SERVICE INSTRUCTIONS
[1] 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 Terminal
and make sure that the voltmeter reads 20 ±1.1V.
5. Apply external 27V DC at C602 +VE Terminal by
external DC supply, TV must shut off.
6. To reset the protector, unplug the AC cord and
remove external 27V DC at C602 +VE Terminal.
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 28KV (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.
using an
21V-FW100S
4 – 1
TV21V-FW100SService Manual21V-FW100SMarketE
CHAPTER 4. SERVICE MODE
[1] SERVICE 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 4 modes via MENU key;
4. During Service mode, AFT operation is prohibited. The setting data for PLL is always set to f
5. During Service mode, the following user data are set to default value and stored as last memory.
PICTURE/TINT/COLOR/BRIGHT/SHARP/COLOR TEMP.(FAV.COLOR)
BASS/TREBLE/BALANCE/MTS/FAO/SPEAKER/ENERGY SAVE/VIEW TIMER
6. During Service mode, OSD display for ON/OFF is toggled via [CH CALL] key.
At display OFF condition, if changing adjustment data, channel, input source, it remains display OFF.
At display OFF condition, if changing adjustment item, it returns to display ON.
8. During Service mode, sound is muted except when selecting the following items.
V23, M01~M06
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
Check mode
SERVICE MODE
data.
°
7. During Service mode, the following operation are prohibited.
CLOSED CAPTION/No signal BLUE SCREEN/AUTO INPUT
21V-FW100S
4 – 2
Memory Map Data
Caution: to get into the service mode, one of the ways is press direct key for service items.
There is three stage of Service Mode data
First stage data from V01 ~ M06
to go into second stage of service mode data, press MENU key
Second stage data from F01 ~ F101
to go into third stage of service mode data, press MENU key
Third stage data from O01 ~ O34
Below is the contents of these data
First Stage
Data Function Range Default Data
V01 CONTRAST 0~127 127
V02 TINT 0~127 64
V03 COLOR 0~127 64
V04 BRIGHT 0~255 128
V05 VIDEO-TONE 0~63 41
V06 V-SHIFT 0~7 4
V07 H-PHASE 0~31 16
V08 RF-DELAY 0~127 127
V09 V-SIZE 0~63 32
V10 V-SHIFT(OFFSET) -7~+7 0
V11 H-PHASE(OFFSET) -15~+15 0
V12 V-SIZE(OFFSET) -31~+31 0
V13 VIF-VCO 0~63 32
V14 R-CUTOFF 0~255 127
V15 G-CUTOFF 0~255 127
V16 B-CUTOFF 0~255 127
V17 R-DRIVE 0~127 64
V18 B-DRIVE 0~127 64
V19 COLOR 0~127 64
V20 BASEBAND-TINT 0~127 64
V21 CC-POS 0~255 32
V22 CUT OFF 0~2 0
V23 A-ATT 0~127 127
V24 H-VCO 0~7 4
V25 S-TRAPFINEADJ 0~15 7
V26 VS-CORRECTION 0~63 36
V27 VS-CORRECTION -13~+13 0
V28 V-LINEARITY 0~63 35
V29 V-LINEARITY -13~+13 0
M01 ATT (MTS) 0~15 10
M02 VCO (MTS) 0~63 32
M03 FILTER (MTS) 0~63 28
M04 WIDEBAND (MTS) 0~63 27
M05 SPECTRAL (MTS) 0~63 32
M06 VOL (MTS) 0~63 63
Auto Adjustment Item
1. H-VCO
2. RF-AGC
3. PIF-VCO
V LINEARITY OFFSET
MTS-WIDEBAND
MTS-SPECTRAL
SUB-VOL
SUB-PICTURE
SUB-TINT
SUB-BRIGHT
SUB-COLOR
Service Mode
SUB-SHARP
V-SHIFT
H-SHIFT
RF-AGC
V-SIZE
PIF-VCO
R-CUTOFF
G-CUTOFF
V-SHIFT50
H-SHIFT50
V-SIZE50
SCREEN CUT OFF
SUB-VOL
B-CUTOFF
R-DRIVE
B-DRIVE
SUB-COLOR(YUV)
SUB-TINT(YUV)
CC-POS
H-VCO
MTS-ATT
MTS-VCO
MTS-FILTER
S-TRAP
VS-CORRECT
VS-CORRECT OFFSET
V LINEARITY
21V-FW100S
4 – 3
Second Stage
Data Function Range Default Data
F01 V-TONE 0/1 0
F02 V-TONE 0/1 0
F03 V-TONE 0/1 0
F04 ABCL 0/1 0
F05 BS-OFF 0/1 0
F06 ABCL-G 0/1 0
F07 VIDEO-TONE(OFFSET) -16~+16 0
F08 VIDEO-TONE(OFFSET) -16~+16 0
F09 VIDEO-TONE(OFFSET) -31~+31 0
F10 VIDEO-TONE(OFFSET) -31~+31 0
F11 EXTRGB-CLIP 0/1 0
F12 CONTRAST(OFFSET) 0~63 30
F13 A-ATT 0~127 120
F14 VIF-GAIN 0~7 5
F15 Y-DELAY 0~7 5
F16 Y-DELAY 0~7 5
F17 Y-DELAY 0~7 5
F18 Y-DELAY 0~7 5
F19 Y-DELAY 0~7 5
F20 Y-DELAY 0~7 5
F21 Y-DELAY 0~7 0
F22 TINT(OFFSET) -32~+32 +6
F23 COLOR(OFFSET) -32~+32 0
F24 COLOR(OFFSET) -31~+31 +24
F25 COLOR(OFFSET) -31~+31 0
F26 R-DRI(OFFSET) -32~+32 +8
F27 R-DRI(OFFSET) -32~+32 +3
F28 R-DRI(OFFSET) -32~+32 -2
F29 B-DRI(OFFSET) -32~+32 -18
F30 B-DRI(OFFSET) -32~+32 -8
F31 B-DRI(OFFSET) -32~+32 +6
F32 V-FREE 0/1 1
F33 GAMMA 0~3 1
F34 H-FREE 0/1 0
F35 V.WINDOW 0/1 0
F36 V.WINDOW 0/1 1
F37 YSW-LPF 0/1 0
F38 BS-DISCHARGE 0~3 0
F39 BS-CHARGE 0~3 0
F40 S-SLICE DOWN 0~7 2
F41 S-SLICE DOWN 0~7 2
F42 S-SLICE DOWN 0~7 0
F43 AFC2-G 0/1 0
F44 VSYNC-DET 0~3 3
F45 VSYNC-DET 0~3 2
F46 VSYNC-DET 0~3 0
F47 AUTO-SLICE 0/1 1
F48 AUTO-SLICE 0/1 1
F49 AUTO-SLICE 0/1 0
F50 FBP VTH 0/1 0
F51 FBP VTH 0/1 0
F52 FBP VTH 0/1 0
F53 C.CLIP LEVEL 0/1 0
F54 PSW 0/1 0
F55 VOL 0~63 58
F56 CHARGE PUMP 0/1 1
F57 CC LEVEL 0~31 0
F58 OSD POS 0~31 0
F59 OSD POS 1~55 38
F60 OSD POS 1~50 23
F61 COLOR -32~+32 +10
F62 TINT -32~+32 +2
OSD POS-V50
OSD POS-V60
Y-DELAY(AV-N3)
Y-DELAY(YUV)
COL-N3
SHP-P
SHP-N3
Y-DELAY(AV-P)
Service Mode
SHPG
SHPG-P
SHPG-N3
ABCL
BS
ABCL-G
SHP-AV
RGB-CLIP
E-SAVE
FAO-VOL
SHP-YUV
PIF-G
Y-DELAY(TV)
Y-DELAY(AV-P)
Y-DELAY(AV)
Y-DELAY(TV-N3)
TINT-AV
COL-AV
R-DRI(R2)
R-DRI( R)
COL-P
R-DRI(B)
B-DRI(R2)
B-DRI( R)
B-DRI(B)
V-FREE
GAMMA
H-FREE
1W(TV)
1W(AV)
YLPF
BS-D
BS-C
SL(TV)
SL(AV)
AFC2
VD(TV)
VD(AV)
SL(YUV)
VD(YUV)
AS(TV)
AS(AV)
AS(YUV)
FBP(TV)
FBP(AV)
C.CLIP LEVEL
PSW
FBP(YUV)
FAO-VOL
CP
CC LEVEL
OSD POS-H
OFFSET-ADJ-COL
OFFSET-ADJ-TINT
21V-FW100S
4 – 4
F63 BASEBAND-TINT -32~+32 0
F64 (SLOW MODE) 0/1 1
F65 R-CUT(OFFSET) -63~+63 0
F66 G-CUT(OFFSET) -63~+63 0
F67 B-CUT(OFFSET) -63~+63 0
F68 R-DRI(OFFSET) -63~+63 0
F69 B-DRI(OFFSET) -63~+63 0
F70 CONTRAST (OFFSET) -63~+63 0
F71 CONTRAST (OFFSET) -63~+63 0
F72
˞ˮ˥ˣˤ˰(OFFSET) [0Ah
-63~+63 0
F73
˞ˮ˥ˣˤ˰(OFFSET) [0Ah
-15~+15 +1
F74
˞ˮ˥ˣˤ˰(OFFSET) [0Ah
-63~+63 0
F75 TRAP-FINE 0~3 2
F76 TRAP-FINE 0~3 2
F77 TRAP-FINE 0~3 2
AFC1-G
AFC1 Gain Up 2
AFC1-G
AFC1 Gain Up 2
AFC1-G
AFC1 Gain Up 2
F81 OM-Det 0/1 0
F82 BS-Gain 0/1 0
F83 C.ANGLE 0/1 0
F84 V AGC 0/1 0
F85 V STD DETOFF 0/1 0
F86 V STD DETOFF 0/1 0
F87 V STD DETOFF 0/1 0
F88 HALF-H KILLER 0/1 1
F89 V-DL Fine 0~3 0
F90 U-DL Fine 0~3 0
F91 CTI 0/1 1
F92 MCU VOUT 0/1 0
F93 AS-SPEED-DN 0/1 0
F94 AS-SPEED-UP 0/1 0
F95 Cr Pedestal Adj. 0~15 8
F96 Cb Pedestal Adj. 0~15 8
F97 SIF BPF WIDE 0~3 1
0: 11XX (AUTO) 3
1: 0011 (PAL-M)
2: 0111 (PAL-N)
3: 0110 (N358)
F99 0/1 1
F100 SIF45 GAIN DOWN 0/1 0
F101 S-Trap 0/1 1
Pow-Storage
SIF45 GAIN DOWN
S-TRAP OFF
CR-PEDESTEL-ADJ
CB-PEDESTEL-ADJ
SIF-BPF-WIDE
COL-SYSTEM
MCUVOUT
CTI Adj
AS-SPEED-DN
AS-SPEED-UP
V-STD-YUV
HALF-H KILLER
˲ˉˠ˨
˱ˉˠ˨
C-ANGLE
V-AGC
V-STD-TV
V-STD-AV
3
F98
COL-SYSTEM
BRIGHT YUV OFFSET
TRAP
TRAP-P
F80
0~3
AFC1-Gain-YUV
0
F79
0~3
3
AFC1-Gain-TV
AFC1-Gain-AV
F78
0~3
CONTRAST YUV OFFSET
˞ˮ˥ˣˤ˰ OFFSET
BRIGHT AV2 OFFSET
TRAP-N3
OM-DET
˞˯ˉˣ˽̅̊
B-DRI-YUV
CONTRAST OFFSET
R-DRI-YUV
OFFSET-ADJ-TINT-YUV
WAIT MD TIME
R-CUT-YUV
G-CUT-YUV
B-CUT-YUV
21V-FW100S
4 – 5
Third stage
Data DATA="0"
DATA =" 1"
Default Data
O01 DEMO DISABLE ENABLE 1
O02 V-CHIP OP DISABLE ENABLE 0
O03 V-CHIP DISABLE ENABLE 0
O04 SPEAKER DISABLE ENABLE 1
O05 FAO DISABLE ENABLE 1
O06 P.REF DISABLE ENABLE 1
O07 UNIV+ DISABLE ENABLE 0
O08 VIEW TIMER DISABLE ENABLE 1
O09 EZ-SETUP AUTO PRESET 0
O10 POWER-ON DISABLE ENABLE 0
O11 FAV-COL COL-TEMP 1
O12 COMPONENT DISABLE ENABLE 1
O13 AV DISABLE ENABLE 1
O14 AV1 AV2 1
O15 MTS DISABLE ENABLE 1
O16 S-ADJ DISABLE ENABLE 1
O17 AUTO-OFF DISABLE ENABLE 1
O18 STANDBY MODE
POWER OFF CH
0
O19 NO SET UP AUTO SET UP 1
O20 3
O21 AV3/S-IN DISABLE ENABLE 0
O22 COMB DISABLE ENABLE 0
O23 AUTO-INPUT DISABLE ENABLE 1
O24 CLOCK DISABLE ENABLE 1
O25 SEMEX MODEL SPC MODEL 0
O26 FLAT DISABLE ENABLE 1
O27 BASS BOOST DISABLE ENABLE 0
O28 DSE DISABLE ENABLE 0
O29 SRS DISABLE ENABLE 0
O30 WHITE-OUT DISABLE ENABLE 1
O31 Disable Enable 0
O32 Disable Enable 1
O33
ENGLISH 0
SPANISH 1
PORTUGUESE 2
Bit0:Spanish
Bit1:French
Bit 2: Portuguese
* POWER ON BY CH-UP / DOWN KEY.
FORCE-COL
O34
Range: 1 … 7
LANG-SEL
7
H-SYNC JUDGE
INIT-LANG
0
"0"=NO AV "1"=REAR "2"=FRONT "3"=REAR & FRONT
OPTION FUNCTION
DOWNLOAD
DEMO
V-CHIP
SPEAKER
AUTO-OFF
AV
AV2
MTS
UNIV+
VIEW TIMER
TONE-CTRL
FAV-COL
COMPONENT
FAO
P.PREF
EZ-SETUP
*PON-CH
AV3/S-IN
COMB
AUTO-INPUT
LAST POWER
SETUP-FLAG
AV-FR
DSE
SRS
WHITE-OUT
CLOCK
LED
FLAT
BASS BOOST
21V-FW100S
4 – 6
SELF ADJUSTMENT
H-VCO
1. When there is H-VCO self-adjustment key input for adjustment item H-VCO, self-adjustment is performed.
2. H-FREE(1chip) is set to 1.
3. H-OUT is set by intelligent monitor output.
4. IM input is set as TIM input.
5. H-VCO(1chip) data is changed so that the number of input pulse is 125 inside 8ms interval.
6. When adjustment completed, OSD display and H-VCO self-adjustment status data of EEPROM are updated.
7. H-FREE(1chip), intelligent monitor output and IM input mode are recovered.
RF-AGC
1. When there is RF-AGC self-adjustment key input for adjustment item RF-AGC, self-adjustment is performed.
2. AGC-OUT is set by intelligent monitor output.
3. IM input is set as AD input.
4. By decreasing RF-AGC (1chip) data from current RF-AGC adjustment value to 0, AFT input voltage becomes the
maximum setting value.
5. Increase RF-AGC(1chip) data, when AFT input voltage is at (max. 0.3V) point, adjustment is completed.
6. When adjustment completed, OSD display and RF-AGC self-adjustment status data of EEPROM are updated.
7. Intelligent monitor output and IM input mode are recovered.
PIF-VCO
1. When there is PIF-VCO self-adjustment key input for adjustment item PIF-VCO, self-adjustment is performed.
2. VIF-DEF(1chip) is set to 1.
3. AFC is set by intelligent monitor output.
4. IM input is set as AD input.
5. VIF-VCO(1chip) data is changed so that input voltage becomes 2.5V.
6. When adjustment completed, OSD display and PIF-VCO self-adjustment status data of EEPROM are updated.
7. VIF-DEF(1chip), intelligent monitor output and IM input mode are recovered.
21V-FW100S
5 – 1
TV21V-FW100SService Manual21V-FW100SMarketE
CHAPTER 5. ADJUSTMENT METHOD
[1] ADJUSTMENT METHOD
MODEL NAME
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
BUS OPTION FOR THIRD STAGE SERVICE DATA
FUNCTION O01 O02 O03 O04 O05 O06 O07 O08 O09 O10
DEMO DOWNLOAD V-CHIP SP FAO P.PREF UNIV+ VIEW EZ PON-CH
ADJUSTMENT 21V-FW100S 1001100101
PROCEDURE
DEF "0"= DISABLE
009 --> "0"= EZ-SETUP "1"= AUTO PRESET
BUS OPTION FOR THIRD STAGE SERVICE DATA
FUNCTION O11 O12 O13 O14 O15 O16 O17 O18 O19 O20
FAV-COL COMP AV AV2 MTS TONE AUTO
Last Pow
SETUP AV-FR
21V-FW100S 1 0 1 1 1 1 1 0 1 3
FUNCTION O21 O22 O23 O24 O25 O26 O27 O28 O29 O30
AV3 COMB A-IN CLOCK LED FLAT BASS DSE SRS WHITE
0000110000
FUNCTION O31 O32
FORCE COL
H-SYNC
01
DEF O11-->"0"=FAV-COL "1"=COL-TEMP
O33 --> "0"= ENGLISH "1"= SPANISH "2"=PORTUGUESE
O19--> "0"= NO SET UP "1" = AUTO SETUP
O20--> "0"=NO AV "1"=REAR "2"=FRONT "3"=REAR&FRONT
O25--> "0"= SEMEX SPEC "1" = SPC SPEC
O34--> "1" ENGLISH + SPANISH
HISTORY
OF REVISION
SYMBOL
21V-FW100S
OPTION SET UP
REFER AS BELOW
STEP RANGE
REFER AS BELOW
ˉ
ˉ
ˉ
21V-FW100S
OSD CHECKING
REVISED CONTENT .
"1"=ENABLE
O33
INITIAL LAN
1
O34
LANG-SEL
1
21V-FW100S
21V-FW100S
21V-FW100S
5 – 2
MODEL NAME
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
DATA SETUP FOR FIRST AND SECOND STAGE SERVICE DATA
FUNCTION V05 V26 V28
SHARP VS COR V-LIN
ADJUSTMENT 21V-FW100S 38 37 9
PROCEDURE
DEF
FUNCTION
DEF
SYMBOL
F17
Y-DELAY (TY-N3)
3
V25
S-TRAP
0
+2
SIF45 GAIN DOWN
1
COL-AV
OSD POS-H
5
OFFSET ADJ COL
+14
21V-FW100S
BUS SET UP
REFER AS BELOW
STEP RANGE
REFER AS BELOW
ˉ
ˉ
ˉ
21V-FW100S
OSD CHECKING
HISTORY
OF REVISION
REVISED CONTENT .
PIF-G
F23
F22
TINT-AV
-1
F58
F61
F100
F14
4
F62
OFFSET ADJ TINT
2
21V-FW100S
21V-FW100S
5 – 3
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
LEFT AND RIGHT SYMMETRICAL
SYMBOL
I2C BUS CONTROL
OPTION SET UP, BUS SET UP,CRT-PURITY
MODEL NAME
H-POSITION
STEP RANGE
V07
0-31
21V-FW100S
US 4 CH LION HEAD (MONOSCOPE)
AC 220V, US MAGNETIC FIELD
1.ADJUST THE V07 BUS DATA TO HAVE A BALANCE POSITION TO SPEC OF A=B.
2.IF CANNOT MAKE IT TO A=B, ADJ FROM THE BEST POINT SO THAT BSLIDELY SMALLER
THAN A
[CHECKING SPEC]
CONFIRMATION BY CRT SCREEN
HISTORY
OF REVISION
REVISED CONTENT .
B
A
21V-FW100S
5 – 4
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
SYMBOL
CONFIRMATION BY CRT SCREEN
ADJUST THE V09 BUS DATA UNTILL THE OVERSCAN BECOME AS SPECIFIED BELOW.
CAUTION:- PLEASE AGING TV MORE THAN 10 MINUTES BEFORE ADJUSTMENT.
[CHECKING SPEC]
OVERSCAN 10 ± 2.5%
I2C CONTROL
OPTION SET UP, BUS SET UP,CRT PURITY, V-PHASE , +B ADJUST
US4CHLIONHEAD
AC 220
MODEL NAME
V-SIZE
V09
STEP RANGE
0~63
21V-FW100S
HISTORY
OF REVISION
REVISED CONTENT .
21V-FW100S
5 – 5
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTOROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
SYMBOL
CONFIRMATION ON CRT SCREEN
ADJUST V06 BUS DATA TO HAVE A MOST ACCEPTABLE VERTICAL POSITION.
THE MONOSCOPE PATTERN SHOULD BE BALANCE IN VERTICAL POSITION
NOTE: THE DATA FOR V06 LIMIT AT <= 04,EVEN POSITION NOT GOOD ENOUGH
[CHECKING CONFIRMATION ]
I2C CONTROL
OPTION SET UP, BUS SET UP, CRT PURITY
US4CHLIONHEAD(MONOSCOPEPATTERN)
220 V, RF INPUT, ZERO MAGNETIC FIELD
MODEL NAME
V-PHASE
V06
STEP RANGE
0-7
21V-FW100S
HISTORY
OF REVISION
REVISED CONTENT .
21V-FW100S
5 – 6
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
LEFT AND RIGHT SYMMETRICAL THEN V21 DATA REDUCE 3 STEP.
SYMBOL
HISTORY
OF REVISION
REVISED CONTENT .
CONFIRMATION ON CRT DISPLAY.
1)BY SELECTING THE V21, BOX BLK TEXT WILL BE APPEARED.
2)ADJUST THE V21 BUSDATATO HAVEABALANCEPOSITIONTOSPECOFA=B.
[CHECKING SPEC]
I2C CONTROL
OPTION SET UP, BUS SET UP
US 4 CH LION HEAD
AC 220
MODEL NAME
CLOSED CAPTION SET UP
V21
STEP RANGE
0-255
21V-FW100S
A
TEXT BOX BLK
B
21V-FW100S
5 – 7
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
SYMBOL
HISTORY
OF REVISION
REVISED CONTENT .
IC 801 PIN 15
(MANUAL ADJ)
1) GO TO SERVICE MODE,
2) GO TO SERVICE DATAV24, ADJ UNTIL FREQ AS BELOW
(SELF ADJ)
1) GO TO SERVICE MODE, BY SELECTING THE SERVICE DATA V24
2) PRESS THE R/C TO OPERATE AUTO H-VCO, OSD APPEAR "OK" AT SCREEN
3) IF APPEAR "NG" PLS REPEAT STEP 2
[CHECKING SPEC]
FREQ = 15.735 ± .02 KHz
I2C CONTROL
OPTION SET UP, BUS SET UP
NO SIGNAL (RASTER) CONDITION
AC 220
MODEL NAME
H-VCO
V24
STEP RANGE
0-7
21V-FW100S
21V-FW100S
5 – 8
MODEL NAME
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
(AT SELF ADJUSTMENT MODE)
1) GO INTO SERVICE MODE,BY SELECTING THE SERVICE DATA V13
2) PRESS THE R/C FOR AUTO PIF-VCO KEY, OSD APPEAR "OK" AT SCREEN
3) IF APPEAR "NG" PLS REPEAT STEP 2
(AT MANUAL ADJUSTMENT MODE)
ADJUST 1) GO INTO SERVICE MODE, BY SELECTING THE SERVICE DATA V13
PROCEDURE 2) ADJUST THE DATA UP/DOWN UNTIL IC801 PIN 9 VOLTAGE BECOME AS SPECIFIED BELOW
HISTORY
OF REVISION
SYMBOL
REVISED CONTENT .
CONFIRMATION ON CRT DISPLAY(AUTO), IC801 PIN 9 VOLTAGE (MANUAL).
[CHECKING SPEC]
2.5 ± 0.5 V DC (CHECKING SPEC : 2.50 ± 1.5 V)
I2C CONTROL
OPTION SET UP, BUS SET UP
NO SIGNAL (RASTER) CONDITION
AC 220
21V-FW100S
PIF-VCO
V13
STEP RANGE
0-63
21V-FW100S
5 – 9
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
SYMBOL
HISTORY
OF REVISION
REVISED CONTENT .
MODEL NAME
RF-AGC
V08
STEP RANGE
0-127
21V-FW100S
I2C CONTROL
OPTION SET UP, BUS SET UP
US10CH HALF COLOR BAR
RF INPUT
FIELD STRENGTH 53dBµV(FIX)
TUNER AGC TERMINAL (JA442 OR TP 201) OR CRT DISPLAY CONFIRMATION
(AT SELF ADJUSTMENT MODE)
1.GO TO SERVICE MODE
2.GO TO SERVICE DATA V08, PRESS R/C TO OPEARATE AUTO-AGC KEY AND CONFIRM THE OK
DISPLAY ON THE SCREEN .
[VOLTAGE CONFIRMATION ]
MAX - 0.1V dc
2. CHANGE THE ANTENNA INPUT SIGNAL TO 63~67 dBuV, AND MAKE SURE THERE IS NO
NOISE.
3. CHANGE THE ANTENNA INPUT SIGNAL TO 90~95 dBuV TO BE SURE THAT THERE IS NO
CROSS MODULATION BEAT.
3.IF APPEAR NG PLS REPEAT STEP 2 AGAIN.
(AT MANUAL ADJUSTMENT MODE)
1. ADJUST THE V08 BUS DATA UNTIL AGC TERMINAL VOLTAGE BECOME MAXIMUM,THEN DROP
0.1V BELOW MAXIMUM VOLTAGE.
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