Sharp 21M-FG1L User manual

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

21V-FW100S

OSD CHECKING

REVISED CONTENT .

"1"=ENABLE

O33

INITIAL LAN

1

O34

LANG-SEL

1

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

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

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

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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