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.
CONTENTS
IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................................... 1-1
LOCATION OF USER’S CONTROL ...................................................................................................................... 2-1
INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................................. 3-1
SERVICE MODE ..................................................................................................................................................... 4-1
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
21V1-L
TV21V1-LService Manual21V1-LMarketE
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.
•
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
21V1-L
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
21V1-L
TV21V1-LService Manual21V1-LMarketE
CHAPTER 2. LOCATION OF USER'S CONTROL
[1] LOCATION OF USER'S CONTROL
2 – 1
TV21V1-LService Manual21V1-LMarketE
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.
21V1-L
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 27V 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 using
Service R/C.
4. The voltage should be approximately 27.5kV (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.
3 – 1
21V1-L
TV21V1-LService Manual21V1-LMarketE
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ENERG Y 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 si gnal 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.
O09 --> "0"=WITHOUT SOUND MENU "1"= WITH TONE "2" WITH EQUALIZER
O12 --> "0"=NO SETUP "1"=AUTO SETUP
O17 --> "0"=ENGLISH "1"=SPANISH "2"=PORTUGESE
O18 --> "1"=SPANISH "2"=FRENCH "4"=PORTUGESE
O19 --> "0"=VOL+/- "1"= /
O20 --> "0"=7 BIT VOLUME TABLE "1"=8 BIT VOLUME TABLE
O21 --> "0"=EZ SETUP SAME AS GA6 BRAZIL "1"=EZ SETUP SAME AS GA6 LAG
O27 --> "0"=NO AV "1"=REAR "2"=FRONT "3"=REAR & FRONT
ˉ
ˉ
OSD CHECKING
"1"=ENABLE
21V1-L
OPTION SET UP
REFER AS BELOW
STEP RANGE
REFER AS BELOW
ˉ
TV21V1-LService Manual21V1-LMarketE
CHAPTER 5. ADJUSTMENT METHOD
21V1-L
5 – 1
21V1-L
MODEL NAME
ADJ US TMENT
ITE M
ADJ US TMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
DATA SE TUP
FOR FIRSTANDSECONDSTAGESERVICEDATA
ADJUS TMENTFUNCTION
V05V06V27V29
F02F06
F14F22
PROCEDURE
SHARP
(PR E)
SHARP
(OVER)
VS C O RV- LIN
SHP-AV-PRE
S HP - AV-
OVER
VIF -GT INT -AV
21V1-L42374440-5-54-9
FUNCTION
F23F26F27F28F29F30F33F37
COL-AVR-RR-BB-RB-BGAMMASL-TVVD-TV
21V1-L+1 0+70-20+9311
FUNCTION
F38F39F49F50F51F52F53F63
VD-AVVD-YUVO S D P O S - H
OSD POS-
V50
OSD-POS-
V60
OFFSET-ADJ
COL
OFFSET-ADJ
TINT
BRI AV2
OFFSET
21V1-L20174830+15+9+3
FUNCTION
F65F80F86F93
TRAP
SIF-BPF-
WIDE
S-TRAP OFF AVL OPTION
21V1-L 0101
DEF
BUS SET UP
REFER AS BELOW
STEP RANGE
21V1-L
䋭
OSD CHECKING
䋭
䋭
REFER AS BELOW
5 – 2
21V1-L
ADJ US T ME N T
ITE M
ADJ US T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITIO N
OUTPUT
ADJ US TMENT
PROCEDURE
LEF T AND RIG HT S YMME T R IC AL
US 4CHLIONHEAD(MONOSCOPE)
AC 220V, US MAG NETIC FIELD
1.ADJUST THE
V08
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 THATBSLIGHTLY SMALLER
THAN
A
[CHECKING SPEC]
CONFIRMATION BY CRT SCREEN
I2C BUS CONTR OL
OPTION SET UP,BUSSETUP,CRT-P URITY
MODEL NAME
H-POS ITION
STEP RANGE
V08
0-31
21V1-L
A
B
5 – 3
21V1-L
ADJ US TME NT
ITE M
ADJ US TME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ US TMEN T
PROCEDURE
MODEL NAME
V-S IZE
V10
STEP RANGE
0~63
21V1-L
CONFIRMATION BY CRT SCREEN
ADJUST THE V10 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,CR T PURITY, V-PHASE , +B ADJUST
US4CHLIONHEAD(MONOSCOPE)
AC 2 2 0
5 – 4
21V1-L
ADJ US TME NT
ITE M
ADJ US TME NT
POSITION
CONTOROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ US TME NT
PROCEDURE
MODEL NAME
V-P HAS E
V07
STEP RANGE
0-7
21V1-L
CONFIRMATION ON CRT S CREEN
ADJUST V07 BUS DATA TO HAVE A MOST ACCEPTABLE VERTICAL POSITION.
THE MONOSCOPE PATTERN SHOULD BE BALANCE IN VERTICAL POSITION
NOTE: THE DATA FOR V07 LIMIT AT <= 04,EVEN POSITION NOT GOOD ENOUGH
[CHECKING CONFIRMATION ]
I2C CONTROL
OPTION SET UP, BUS SET UP, CRT PURITY
US 4CHLIONHEAD(MONOSCOPE)
220V,RFINPUT,ZEROMAGNETICFIELD
5 – 5
21V1-L
ADJ US T ME NT
ITE M
ADJ US T ME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ U S TMEN T
PROCEDURE
LEFT AND RIGHT S YMMETRICAL THEN V22 DATA REDUCE 5 STEP.
CONFIRMATION ON CRT DISP LAY.
1) BY SELECTING THE
V22
, BOX BLK TEXT W ILL BE APPEARED.
2) ADJUST THE
V22
BUS DATA TO HAVE A BALANCE POSITION TO SPEC OF A=B.
[CHECKING SPEC]
I2C CONTROL
OPTION SET UP, BUS S ET UP
US 4CHLIONHEAD(MONOSCOPE)
AC 220
MODEL NAME
CLOSED CAPTION S ET UP
V22
STEP RANGE
0-255
21V1-L
TEXT BOX BLK
B
A
5 – 6
21V1-L
ADJ US TME N T
ITE M
ADJ US TME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
(MANUAL ADJ)
1) GO T O SERVICE MODE
2) GO TO SERVICE DATA
V25
, ADJ UNTIL FREQUENCY AS BELOW
(SELF ADJ)
1) GO TO SERVICE MODE, BY SELECTING THE SERVICE DATA
V25
2) PRESS THE R/C TO OPERATE AUTO H-VCO, OSD APPEAR "OK" AT SCREEN
ADJ US TMEN T
3) IF APPEAR "NG" PLS REPEAT STEP 2
PROCEDURE
MODEL NAME
H-VCO
V25
STEP RANGE
0-7
21V1-L
IC 801 PIN 13 (MANUAL), CONFIRMATION O N CRT DISP LAY (AUTO)
[CHECKING SPEC]
FREQ = 15.735 ± .02 KHz
I2C CONTROL
OPTION SET UP, BUS SET UP
NO SIGNAL (RAS TE R) CO NDITION
AC 2 20
5 – 7
21V1-L
MODEL NAME
ADJ US TME NT
ITE M
ADJ US TME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
(AT SELF ADJUSTMENT MODE)
1)G O INT O S E R VIC E MO DE,B Y S ELECTIN G THE S ER VIC E DATA
V14
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 ADJ US TMENT MODE)
ADJ US T
1)GO INTO SERVICE MODE, BYSELECTING THE SERVICE DATA
V14
PROCEDURE 2) ADJUS T THE DATA UP/DO WN UNTIL IC8 01 P IN 7 VOLTAGE BE COME AS S P EC IFIED BELOW
I2C CONTROL
OPTION SET UP, BUS SET UP
NO S IG N AL (R AS TE R ) C O NDIT IO N
AC 2 20
21V1-L
PIF-VCO
V14
STEP RANGE
0-63
CONFIRMATION ON CRT DISP LAY(AUTO), IC801 P IN 7 VOLTAGE (MANUAL).
[CHECKING SPEC]
2.5±0.5VDC (CHECKINGSPEC:2.50±1.5V)
5 – 8
21V1-L
ADJ US TME NT
ITE M
ADJ US TME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ US TME NT
PROCEDURE
MODEL NAME
RF-AGC
V09
STEP RANGE
0-127
21V1-L
TUNER AGC TERMINAL (JA402 ) OR CRT DISP LAY CONFIRMATION
(AT SELF ADJUSTMENT MODE)
1) GO TO SERVICE MODE
2) GO TO SERVICE DATA
V09
, PRESS R/C TO OPEARATE AUTO-AGC KEY AND CONFIRM THE
OK
DISPLAY ON THE SCREEN.
3) IF APPEAR NG PLS REPEAT STEP 2 AGAIN.
(AT MANUAL ADJUSTMENT MODE)
1) ADJUST THE V09 BUS DATA UNTIL AGC TERMINAL VOLTAGE BECOME MAXIMUM, THEN
DROP 0.1V BELOW MAXIMUM VOLTAGE.
[VOLTAGE CONFIRMATION ]
MAX - 0.1V dc
I2C C O N TR O L
OPTION SET UP, BUS SET UP
US10CH HALF COLOR BAR
RF INPUT
FIELD S TRENGTH
56dB
ǴV (FIX)
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.
5 – 9
21V1-L
MODEL NAME
ADJ US TME NT
ITE M
ADJ US TME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CO ND ITION
OUTPUT
(AT SELF ADJUSTMENT MODE)
1)G O INT O S E R VIC E MODE , BY S E LEC T ING T HE S ER VIC E DAT A
V26
2)PRESS THE R/C FOR AUTO S-TRAP KEY, OSD APPEAR "OK" AT SCREEN
3)IF APPEAR "NG" PLS REPEAT STEP 2
(AT MANUAL ADJ US TMENT MODE)
ADJ US T
1)G O INT O S E R VIC E MODE , BY S ELE CT ING THE S E R VIC E DAT A
V26
PROCEDURE 2) ADJ US T THE DATA UP /DO WN UNTIL IC8 01 P IN 30 O R TP801 VOLTAGE BEC OME MIN
(BELOW 5V)
[CHECKING SPEC]
I2C CONTROL
OPTION SET UP, BUS S ET UP,RF-AGC,VIF-VCO
NO S IG N AL ( R AS TE R ) C O NDIT IO N
AC 2 2 0
21V1-L
S-TRAP
V26
STEP RANGE
0-127
CONFIRMATION ON CRT DIS P LAY(AUTO), IC801 PIN 30 OR TP 801VOLTAGE (MANUAL).
5 – 10
21V1-L
ADJ US TME NT
ITE M
ADJ US TME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CO ND ITION
OUTPUT
ADJ US TMEN T
PROCEDURE
21V1-L
I2C C ON TROL
OPTION SET UP, BUS SET UP
WINDOW P ATTERN OR US 4 CH LION HEAD
220 V
CONFIRMATION ON CRT DISP LAY.
[VOLTAGE CONFIRMATION ]
1) IN SERVICE MODE, SET
V04
TO 127 AND
V15&V16&V17
TO 127;
V18&V19
TO 64 , GET IN Y-
MUTE BY R/C AND SET
V23
TO "1", PICTURE APPEAR IN CUT-OFF CONDITION
2)ADJUST THE SCREEN SO THAT CUT-OFF LINE APPEAR IN LOW BRIGHT, THEN JUDGE THAT
WHETHER THE CUT-OFF LINE APPEAR IN RED OR GREEN OR BLUE COLOR, IN THIS CONDITION
V15= R-CUTOFF,V16=G-CUTOFF,V17=B-CUTOFF, FIX THE DATA OF THE COLOR APPEAR IN CUTOFF LINE AND USE R/C TO ADJUST THE OTHER TWO CUT-OFF DATA SO THAT CUT-OFF LINE
COLOR BECOME WHITE.
3)TURN THE SCREEN VR OF FBT SO THAT CUT-OFF LINE JUST DISAPPEAR AND USE R/C TO
SET
V23
TO "0", NEXT DISABLE THE Y-MUTE SO THAT PICTURE APPEAR IN NORMAL MODE.
MODEL NAME
SCREEN
V15 ,V1 6 ,V1 7
STEP RANGE
0~255
5 – 11
21V1-L
ADJ US T ME NT
ITE M
ADJ US T ME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ U S TME N T
PROCEDURE
I2C BUS CONTRO L
OPTION S ET UP, BUS S ET UP, SCREEN
23CH 50IRE WINDOW PATTERN
220 V
CRT SCREEN DIS P LAY .
1)
WHITE
(HIGH BEAM)
FIRSTLETTHEGUNPOINTAT
BLACK
POSITION (AS DRAWING ATTACH), ADJ
V04
UNTIL
BRIGHTNESS Y
BECOME
5cd/m2
,THENLETTHEGUNPOINTAT
WHITE
POSITION (AS DRAWING ATTACH),ADJUST
V01
UNTIL
BRIGHTNESS Y
BECOME
150
cd/m2
, ADJUS T THE BUS DATA OF
V18
(R DRIVE),
V19
(B DR IVE) UNTLL THE AXIS OF
COLOUR TEMP ERATURE BECOME
X=0.273,Y=0.280
.
2)
BLACK
(LOW BEAM)
LET THE GUN P OINT AT B LAC K P O S ITIO N , IF T HE VALUE S HIF TED AWAY F R O M THE
DATA ADJUS TED IN S TEP 1), ADJUS T AGAIN THE TWO S ER VICE DATA WHICH HAVE
CHO S EN AT S CR E E N AD J U S T S O THAT TO O BTAIN THE S IMILAR AXIS AS AB O VE .
*
WARNING
: DO NOT DISTUR B THE MINI S TEP GUN DATA DURING THIS ADJ US TMENT.
**R EP EAT S TE P 1),2) TO GET A REG ULATED P O S ITION.
[CHECKING CONFIRMATION ]
X=0.273,Y=0.280 (11,600° K+1 MPCD)
MODEL NAME
WHITE BALANCE
V18,V19,V15,V16,V17
STEP RANGE
0-127, 0~255
21V1-L
WHITE
US14
BLACK
5 – 12
21V1-L
ADJ US T ME NT
ITE M
ADJ US T ME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ U S TMEN T
PROC EDUR E
BRIGHTNESS Y = 0.5 cd/m2, THEN STEP DOW N MORE 4 STEP
MODEL NAME
SUB-BRIGHT
V04
STEP RANGE
0-255
21V1-L
I2C CONTROL
OPTION SET UP, BUS S ET UP, S CREEN, WHITE BALANCE
WINDOW P ATTERN
220 V
CRT SCREEN DISP LAY .
1)LET THE GUN POINT AT BLACK POSITION(AS ATTACH DRAW ING), ADJUST
V04
BUS DATA
UNTILL BRIGHTNESS Y = 0.5 cd/m2,
THEN STEP DOWN MORE 4 STEP
[VOLTAGER CONFIRMATION ]
BLACK
US14
5 – 13
21V1-L
ADJ US T ME NT
ITE M
ADJ US T ME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ US TME NT
PROCEDURE
I2C BUS CO NTROL
OP TION SET UP , BUS S ET UP , S CRE EN, WHITE BALANC E, SUB-BRIGHTNE S S
WINDOW P ATTERN
220 V
CRT SCREEN DISP LAY
1) LET THE GUN POINT AT WHITE POSITION (AS ATTACH DRAWING), ADJUST
V01
BUS DATA
UNTILL BRIGHTNESS Y =
150 cd/m2
.
NOTE: ALLOWABLE DATA FOR V01 IS >= 90, EVEN Y CAN'T MATCH THE SPEC
[VOLTAGE CONFIRMATION ]
BRIGHTNE SS Y = 150 c d/m 2
MODEL NAME
SUB-PICTURE
V01
STEP RANGE
0-127
21V1-L
WHITE
US14
5 – 14
ADJ US TMEN T
ITE M
ADJ US TMEN T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP U T
CONDITION
OUTPUT
ADJ U S TME NT
PR OC EDURE
I2C CONTROL
OPTION SET UP, BUS SET UP, VCO ADJ , RF-AGC
US 10 CH HALF CO LOR BAR P ATTER N
220 V
B-AMP TR BASE (JA410 OR TP853)
CONFIRRM WITH OS CILLOSCOPE
1)GET IN Y-MUTE FUNCTION BY R/C .
2)ADJUST THE
V02
BUS DATA TO GET A WAVEFORM AS BELOW.
[CONFIRMATION ]
MODEL NAME
SUB-TINT
V02
STEP RANGE
0-127
21V1-L
B-AMP BASE (TP 853)MUST BE IN
STEPPING LEVEL
21V1-L
5 – 15
21V1-L
ADJ US T ME NT
ITE M
ADJ US T ME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ U S T MEN T
PROC EDUR E
I2C BUS CONTROL
OPTION SET UP, BUS S ET UP, VCO ADJ, RF-AGC,
SUB-PICT, SUB-TINT
US 10 CH HALF COLOR BAR PATTERN
220 V
R-AMP TR BASE (JA401 OR TP851)
CO NF IR M WITH O S CILLO S CO P E
1)SET THE
V03
BUS DATA TO GET A WAVEFORM AS BELOW
2)THIS WAVEFORM SHOWS THAT THE 75% W HITE & RED PORTIONS OF COLOR BAR BE AT THE
SAME LEVEL
[CHECKING CONFIRMATION ]
MODEL NAME
SUB-COLOR
V03
STEP RANGE
0-127
21V1-L
CyG
100% WHITE
W
Y
Mg R B
5 – 16
21V1-L
ADJ US TME NT
ITE M
ADJ US TME NT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CO ND ITIO N
OUTPUT
ADJ US TMEN T
PROCEDURE
27V
26 ± 1.1V DC
MODEL
21V1-L
AC 220V, RF INP UT
CONFIRMATION BY THE CRT
[VOLTAGE COMFIRMATION]
SET THE USER CONTROL TO SHIPMENT POSITION.
[VOLTAGE CONFIRMATION]
CHECK THE VOLTAGE OF C602 +VE TERMINAL AS SPECIFIED BELOW.
[OPERAT ION CONFIRM ATION]
SUPPLY THE DC VOLTAGE TO C602 +VE TERMINAL AND MAKE SURE THE PROTECTOR IS
FUNCTIONED , HORIZONTAL OSCILATION STOP AND PICTURE DISAPPEAR.
[RECOVER INFORMATION]
PULL OUT THE AC CORD .
[CAUTION]
FROM THE RECOVER CONFIRMATION MENTIONED ABOVE,THE AC CODE MUST BE PULLED
OUT AT LEAST 4 SECOND BEFORE PLUGGING IN AGAIN. (IN ORDER TO MAKE SURE THE㱘COM HAS BEEN RESET.)
TP VOLTAGE
OPERATION VOLTAGE
䋭
AFTE R ALL ADJ US TME NT F INIS H E D.
US4CHLIONHEAD(MONOSCOPEPATTERN)
MODEL NAME
X-RAY P ROTECTION OP ERATING CONFIRMATION
䋭
STEP RANGE
䋭
21V1-L
5 – 17
21V1-L
ADJ US TME N T
ITE M
ADJ US TME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INP UT
CONDITION
OUTPUT
ADJ US T MENT
PROCEDURE
BELOW 27.5kV
USE ELEC TR O S TATIC HI-VOLTAGE METE R AND FOLLOW THE UL / DHHS STANDAR D TO MAKE
CORRECTION AND CONTROL.
䋭
AFTER ALL ADJ US TMENT F INISHE D.
US4CHLIONHEAD(MONOSCOPEPATTERN)
AC 220V, RF INPUT
CRT ANODE VOLTAGE
[CAUTION POINT ]
SET THE USER CONTROL TO SHIPMENT SETTING POSITION.PUSH ON Y - MUTE BY R/C
CONFIRM THE VOLTAGE OF CRT ANODE BY HIGH VOLTAGE METER AND MAKE SURE THE
READING IS AS BELOW .
2. All resistors are 1/16 watt, unless otherwise noted.
3. All capacitors are
µµ
(P=pF=
4. (G) indicates
5.
indicates line isolated ground.
VOLTAGE MEASUREMENT CONDITIONS:
1. All DC voltages are measured with DVM connected
between points indicated and chassis ground, line
voltage set at 120V AC and all controls set for normal
picture unless otherwise indicated.
2. All voltages measured with 1000
signal.
F)
µ
F, unless otherwise noted.
±
2% tolerance may be used.
µ
VB&WorColor
WAVEFORM MEASUREMENT CONDITIONS:
1.
Photographs taken on a standard gated color bar
signal, the tint setting adjusted for proper color. The
wave shapes at the red, green and blue cathodes of
the picture tube depend on the tint, color level and
picture control.
2.
indicates waveform check points (See chart,
waveforms are measured from point indicated to
chassis ground.)
AND SHADED () COMPONENTS
= SAFETY RELATED PARTS.
MARK= X-RAY RELATED PARTS.
DRGANNES MARQUESET HACHRES ():
PIECES RELATIVES A LA SECURITE.
MARQUE: PIECS RELATIVE AUX RAYONS X.
This circuit diagram is a standard one, printed circuits
may be subject to change for product improvement
without prior notice.
9 – 1
TV21V1-LService Manual21V1-LMarketE
CHAPTER 10. SCHEMATIC DIAGRAM
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10 – 3
21V1-L
TV21V1-LService Manual21V1-LMarketE
CHAPTER 11. PRINTED WIRING BOARD ASSEMBLIES
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PartsGuide
PARTS GUIDE
No. XXXXXXXXXXXX
S8811021V1L
XXXXXXXX
21V1-L
[1]PICTURE TUBE
[2]PRINTED WIRING BOARD
ASSEMBLIES
[3]MAIN UNIT
[4]CRT UNIT
MODEL
CONTENTS
21V1-L
[5]SUPPLIED ACCESSORIES
[6]CABINET PARTS
[7]PACKING PARTS
INDEX
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
RJ2 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ15 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ16 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ18 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ19 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ32 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ33 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ35 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ36 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ39 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ42 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ43 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ44 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ49 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ50 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ57 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ62 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ66 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ72 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ75 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ76 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
RJ78 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
R201 VRS-CY1JF101JYAAR100 1/16W Metal Oxide
R202 VRS-CY1JF101JYAAR100 1/16W Metal Oxide
R205 VRD-RA2BE680JYAAR68 1/8W Carbon
R206 VRS-CY1JF122JYAAR1.2K 1/16W Metal Oxide
R207 VRS-CY1JF221JYAAR220 1/16W Metal Oxide
R208 VRS-CY1JF221JYAAR220 1/16W Metal Oxide
R209 VRS-CY1JF392JYAAR3.9K 1/16W Metal Oxide
R216 VRS-VV3LB393JACR39K 3W Metal Film
R220 VRS-CY1JF221JYAAR220 1/16W Metal Oxide
R301 VRD-RA2BE272JYAAR2.7K 1/8W Carbon
R303 VRS-CY1JF473JYAAR47K 1/16W Metal Oxide
R304 VRD-RA2BE223JYAAR22K 1/8W Carbon
R305 VRS-CY1JF274JYAAR270K 1/16W Metal Oxide
R311 VRS-VV3DBR10JACR10 2W Metal Film
R314 VRD-RA2BE822JYAAR8.2K 1/8W Carbon
R315 VRS-CY1JF472JYAAR4.7K 1/16W Metal Oxide
R325 VRD-RM2HD1R0JYAAR1 1/2W Carbon
R366 VRS-CY1JF332JYAAR3.3K 1/16W Metal Oxide
R384 VRS-CY1JF332JYAAR3.3K 1/16W Metal Oxide
R391 VRN-RL3ABR22J+ADR22 1W Metal Film
R458 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R459 VRD-RA2EE750JYAAR75 1/8W Carbon
R461 VRS-CY1JF750JYAAR75 1/16W Metal Oxide
R462 VRS-CY1JF101JYAAR100 1/16W Metal Oxide
R502 VRS-RG3AB561J+ABR560 1W Metal Oxide
R503 VRN-RL3DB1R2J+ABR1.2 2W Metal Film
R504 VRS-CY1JF222JYAAR2.2K 1/16W Metal Oxide
R506 VRS-RG3AB331J+ABR330 1W Metal Oxide
R507 VRD-RM2HD1R0JYAAR1 1/2W Carbon
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
DESCRIPTION
4
NO.PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
[3] MAIN UNIT
R513 VRD-RM2HD333JYAAR33K 1/2W Carbon
R514 VRD-RM2HD562JYAAR5.6K 1/2W Carbon
R520 VRS-CY1JF822JYAAR8.2K 1/16W Metal Oxide
R523 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R524 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R526 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
R602 VRD-RA2BE393JYAAR39K 1/8W Carbon
R603 VRD-RA2BE223JYAAR22K 1/8W Carbon
R604 VRD-RA2BE473JYAAR47K 1/8W Carbon
R605 VRD-RM2HD104JYAAR100K 1/2W Carbon
R606 VRN-RL3LBR18J+ADR18 3W Metal Film
R608 VRD-RM2HD102JYAAR1K 1/2W Carbon
R609 VRD-RM2HD270JYAAR27 1/2W Carbon
R611 VRN-RL3AB1R2J+ABR1.2 1W Metal Film
R612 VRD-RM2HD270JYAAR27 1/2W Carbon
R614 VRD-RA2BE154JYAAR150K 1/8W Carbon
R615 VRS-CY1JF102JYAAR1K 1/16W Metal Oxide
R616 VRS-CY1JF102JYAAR1K 1/16W Metal Oxide
R617 VRS-CY1JF123JYAAR12K 1/16W Metal Oxide
R618 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R619 VRD-RM2HD680JYAAR68 1/2W Carbon
R620 VRD-RM2HD680JYAAR68 1/2W Carbon
R621 VRN-RL2HC100J+ABR10 1/2W Metal Oxide
R622 VRS-RG3DB682J+ABR6.8 2W Metal Film
R631 VRS-RG3LB391J+R390 3W Metal Oxide
R637 VRD-RA2BE331JYAAR330 1/8W Carbon
R638 VRD-RA2BE181JYAAR180 1/8W Carbon
R639 VRD-RM2HD151JYAAR150 1/2W Carbon
R642 VRN-RL3DB1R0J+ABR1 2W Metal Film
R661 VRD-RA2BE102JYAAR1K 1/8W Carbon
R662 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R704 VRD-RA2BE221JYAAR220 1/8W Carbon
R705 VRN-RL3DBR82J+ABR82 2W Metal Film
R706 VRN-RL3DBR22J+ABR22 2W Metal Film
R710 VRD-RM2HD1R0JYAAR1 1/2W Carbon
R711 VRD-RA2EE472JYAAR4.7K 1/4W Carbon
R720 VRD-RA2EE472JYAAR4.7K 1/4W Carbon
R722 VRD-RA2BE153JYAAR15K 1/8W Carbon
R726 VRN-RL2HCR47J+ABR0.47 1/2W Metal Oxide
R733 VRD-RA2BE273JYAAR27K 1/8W Carbon
R750 VRS-RG3AB180J+ABR18 1W Metal Oxide
R751 RR-DZ0049CEZZYR39M 1/2W Carbon Film
R752 RR-DZ0049CEZZYR39M 1/2W Carbon Film
R753 VRD-RM2HD124JYAAR120K 1/2W Carbon
R754 VRS-VV3DB680JABR8.2 1W Metal Film
R755 VRS-VV3LB220JR22 3W Metal Oxide
R757 VRN-VV3AB5R6JABR5.6 1W Metal Oxide
R762 VRD-RA2BE821JYAAR820 1/8W Carbon
R763 VRD-RA2BE102JYAAR1K 1/8W Carbon
R764 VRS-CY1JF561JYAAR560 1/16W Metal Oxide
R772 VRS-CY1JF102JYAAR1K 1/16W Metal Oxide
R774 VRS-CY1JF102JYAAR1K 1/16W Metal Oxide
R802 VRS-CY1JF473JYAAR47K 1/16W Metal Oxide
R805 VRD-RA2BE101JYAAR100 1/8W Carbon
R806 VRS-CY1JF822JYAAR8.2K 1/16W Metal Oxide
R807 VRS-CY1JF124JYAAR120K 1/16W Metal Oxide
R808 VRS-CY1JF101JYAAR100 1/16W Metal Oxide
R809 QJUM-0001AJFWYRJumper wire
R810 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R811 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R812 VRS-CY1JF822JYAAR8.2K 1/16W Metal Oxide
R819 VRS-CY1JF473JYAAR47K 1/16W Metal Oxide
R823 VRS-CY1JF101JYAAR100 1/16W Metal Oxide
R825 VRS-CY1JF473JYAAR47K 1/16W Metal Oxide
R827 VRD-RM2HD151JYAAR150 1/2W Carbon
R828 VRD-RA2BE223JYAAR22K 1/8W Carbon
R829 VRS-CY1JF473JYAAR47K 1/16W Metal Oxide
R832 VRS-CY1JF222JYAAR2.2K 1/16W Metal Oxide
R833 VRS-CY1JF222JYAAR2.2K 1/16W Metal Oxide
R834 VRS-CY1JF222JYAAR2.2K 1/16W Metal Oxide
R835 VRS-CY1JF181JYAAR180 1/16W Metal Oxide
R836 VRS-CY1JF181JYAAR180 1/16W Metal Oxide
R837 VRS-CY1JF181JYAAR180 1/16W Metal Oxide
R838 VRS-CY1JF472JYAAR4.7K 1/16W Metal Oxide
R840 VRS-CY1JF332JYAAR3.3K 1/16W Metal Oxide
R841 VRS-CY1JF333JYAAR33K 1/16W Metal Oxide
R849 VRS-CY1JF331JYAAR330 1/16W Metal Oxide
R854 VRS-CY1JF331JYAAR330 1/16W Metal Oxide
R855 VRS-CY1JF331JYAAR330 1/16W Metal Oxide
R891 VRS-CY1JF392JYAAR3.9K 1/16W Metal Oxide
R1003 VRS-CY1JF102JYAAR1K 1/16W Metal Oxide
R1004 VRD-RA2BE101JYAAR100 1/8W Carbon
R1008 VRD-RA2BE101JYAAR100 1/8W Carbon
R1010 VRS-CY1JF104JYAAR100K 1/16W Metal Oxide
R1011 VRS-CY1JF183JYAAR18K 1/16W Metal Oxide
21V1-L
DESCRIPTION
5
21V1-L
NO.PARTS CODE
PRICE
RANK
NEW
MARK
[3] MAIN UNIT
R1012 VRS-CY1JF183JYAAR18K 1/16W Metal Oxide
R1013 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
R1014 QJUM-0001AJFWYRJumper wire
R1015 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
R1016 VRD-RA2BE332JYAAR3.3K 1/8W Carbon
R1017 VRD-RA2BE101JYAAR100 1/8W Carbon
R1019 VRD-RA2BE101JYAAR100 1/8W Carbon
R1020 VRS-CY1JF183JYAAR18K 1/16W Metal Oxide
R1021 VRS-CY1JF822JYAAR8.2K 1/16W Metal Oxide
R1022 VRS-CY1JF183JYAAR18K 1/16W Metal Oxide
R1024 VRS-CY1JF101JYAAR100 1/16W Metal Oxide
R1025 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R1026 VRS-CY1JF183JYAAR18K 1/16W Metal Oxide
R1027 VRS-CY1JF104JYAAR100K 1/16W Metal Oxide
R1028 VRD-RA2BE391JYAAR390 1/8W Carbon
R1030 VRD-RA2BE103JYAAR10K 1/8W Carbon
R1031 VRS-CY1JF101JYAAR100 1/16W Metal Oxide
R1032 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R1040 VRS-CY1JF332JYAAR3.3K 1/16W Metal Oxide
R1041 VRS-CY1JF332JYAAR3.3K 1/16W Metal Oxide
R1042 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
R1046 VRD-RA2BE102JYAAR1K 1/8W Carbon
R1047 VRS-CY1JF101JYAAR100 1/16W Metal Oxide
R1048 VRS-CY1JF471JYAAR470 1/16W Metal Oxide
R1049 VRS-CY1JF105JYAAR1M 1/16W Metal Oxide
R1056 VRS-CY1JF332JYAAR3.3K 1/16W Metal Oxide
R1074 VRS-CY1JF103JYAAR10K 1/16W Metal Oxide
R1087 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
R1092 VRS-CY1JF000JYAAR0 1/16W Metal Oxide
R1800 VRD-RA2EE474JYAAR470K 1/4W Carbon
R1801 VRS-CY1JF682JYAAR6.8K 1/16W Metal Oxide
R1802 VRS-CY1JF473JYAAR47K 1/16W Metal Oxide
R1803 VRS-CY1JF473JYAAR47K 1/16W Metal Oxide
R1804 VRD-RA2BE222JYAAR2.2K 1/8W Carbon
R1805 VRS-CY1JF124JYAAR120K 1/16W Metal Oxide
R1872 VRS-CY1JF750JYAAR75 1/16W Metal Oxide
R3002 VRS-CY1JF102JYAAR1K 1/16W Metal Oxide
R3006 VRD-RA2BE101JYAAR100 1/8W Carbon
S701 QSW-PA003WJZZAGRSwitch , POWER
S1001 QSW-KA019WJZZ+ACRSwitch , CH UP
S1002 QSW-KA019WJZZ+ACRSwitch , CH DOWN
S1003 QSW-KA019WJZZ+ACRSwitch , VOL UP
S1004 QSW-KA019WJZZ+ACRSwitch , VOL DOWN
S1005 QSW-KA019WJZZ+ACRSwitch , MENU
RDA301 PRDARA420WJFWRHeat Sink for IC301
RDA501 PRDARA120WJFWADRHeat Sink for IC501
RDA602 PRDARA361WJFWRHeat Sink for Q602
RDA701 PRDARA119WJFWAFRHeat Sink for IC701