Sharp 21v1-l Service Manual

							21V1-L
5 – 9
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O NDITIO N
OUTPUT
AD J U S TME N T
PROCEDURE
MODEL NAME
RF-AGC
V09STEP RANGE0-127
21V1-L
TUNER AGC TERMINAL (J A402 ) OR CRT DISPLAY CONFIRMATION
(AT SELF ADJUSTMENT MODE)
1) GO TO SERVICE MODE
2) GO TO SERVICE DATAV09
, PRESS R/C TO OPEARATE AUTO-AGC KEY AND CONFIRM THEOK
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
I2 C C O N T R O L
OPTION SET UP, BUS SET UP
US 1 0 C H HALF C O LO R BAR
RF INP UT
FIELD S TRENGTH56d B
ôV(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. 
						

							21V1-L
5 – 10
MODEL NAMEAD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O N D IT IO N
OUTPUT
(AT SELF ADJUSTMENT MODE)
1 ) G O IN T O S E R VIC E MO D E , B Y S E LE C T IN G T H E S E R VIC E D AT AV2 62)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 TME NT MO DE )
AD J U S T1 ) G O IN T O S E R VIC E MO D E , B Y S E LE C T IN G T H E S E R VIC E D AT AV2 6P R O C E DUR E 2 ) ADJ US T THE DATA UP /DO W N UNTIL IC 8 0 1 P IN 3 0 O R TP 8 0 1 VO LTAG E BE C O ME MIN
(BE LO W 5 V)
[CHECKING SPEC]
I2C CONTROL
OPTION SET UP, BUS SET UP,RF-AGC,VIF-VCO
N O S IG N AL ( R AS T E R ) C O N D IT IO N
AC 2 2 0
21V1-L
S-TRAP
V2 6STEP RANGE0-127
CONFIRMATION ON CRT DIS P LAY(AUTO), IC801 P IN 30 OR TP 801VOLTAGE (MANUAL). 
						

							21V1-L
5 – 11
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O N D IT IO N
OUTPUT
AD J U S TME N T
PROCEDURE
21V1-L
I2 C C O N T R O L
OPTION SET UP, BUS SET UP
W INDO W P ATTE R N O R US 4 C H LIO N HE AD
220 V
CONFIRMATION ON CRT DISPLAY.
[VOLTAGE CONFIRMATION ]
1) IN SERVICE MODE, SETV04
TO 127 ANDV15
&V16
&V17
TO 127;V18
&V19
TO 64 , GET IN Y-
MUTE BY R/C AND SETV23
TO 1, PICTURE APPEAR IN CUT-OFF CONDITION
2)ADJUST THE SCREEN SO THAT CUT-OFF LINE APPEAR IN LOW BRIGHT, THEN JUDGE THAT
W HETHER 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 CUT-
OFF LINE AND USE R/C TO ADJUST THE OTHER TW O CUT-OFF DATA SO THAT CUT-OFF LINE
COLOR BECOME W HITE.
3)TURN THE SCREEN VR OF FBT SO THAT CUT-OFF LINE JUST DISAPPEAR AND USE R/C TO
SETV23
TO 0, NEXT DISABLE THE Y-MUTE SO THAT PICTURE APPEAR IN NORMAL MODE.
MODEL NAME
S CREEN
V1 5 , V1 6 , V1 7STEP RANGE0~255 
						

							21V1-L
5 – 12
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O NDITIO N
OUTPUT
AD J U S TME N T
PROCEDURE
I2 C BUS C O NTR O L
OP TION S ET UP , BUS S ET UP , S CREEN
23CH 50IRE WINDOW P ATTERN
220 V
CRT S CREEN DIS P LAY .
1)
WHITE(HIG H BEAM)
FIRSTLETTHEGUNPOINTATBLACK
POSITION (AS DRAWING ATTACH), ADJ
V0 4
UNTILBRIGHTNES S Y
BE C O ME5cd/m2
,THENLETTHEGUNPOINTATWHITE
POSITION (AS DRAWING ATTACH),ADJUSTV0 1
UNTILBRIGHTNES S Y
BE C O ME150
cd/m2
, ADJ US T THE BUS DATA O FV1 8
(R DRIVE),V1 9
(B DR IVE ) UNTLL THE AXIS O F
COLOUR TEMP ERATURE BECOMEX=0.273,Y=0.280
.
2)
BLACK(LO W BEAM)
LE T T H E G U N P O IN T AT B LAC K P O S IT IO N , IF T H E VALU E S H IF T E D AW AY F R O M T H E
DATA ADJ US TE D IN S TE P 1 ), ADJ US T AG AIN THE TWO S E R VIC E DATA WHIC H HAVE
C H O S E N AT S C R E E N AD J U S T S O T H AT T O O B T AIN T H E S IMILAR AXIS AS AB O VE .
*WARNING
: DO NO T DIS TUR B THE MINI S TE P G UN DATA DUR ING THIS ADJ US TME NT.
**REP EAT S TEP 1),2) TO G ET A REG ULATED P O S ITIO N.
[CHECKING CONFIRMATION ]X=0.273,Y=0.280 (11,600° K+1 MP CD)
MODEL NAME
WHITE B ALANC E
V18,V19,V15,V16,V17STEP RANGE0-127, 0~255
21V1-L
WHITE
US14
BLACK 
						

							21V1-L
5 – 13
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O NDITIO N
OUTPUT
AD J U S TME N T
P R O C E DUR E
BRIGHTNESS Y = 0.5 cd/m2, THEN STEP DOW N MORE 4 STEP
MODEL NAME
S UB-BRIGHT
V0 4STEP RANGE0-255
21V1-L
I2C CONTROL
OPTION SET UP, BUS SET UP, SCREEN, WHITE BALANCE
W INDO W P ATTE R N
220 V
CRT S CREEN DIS P LAY .
1)LET THE GUN POINT AT BLACK POSITION(AS ATTACH DRAW ING), ADJUSTV04
BUS DATA
UNTILL BRIGHTNESS Y = 0.5 cd/m2,THEN STEP DOWN MORE 4 STEP
[VOLTAGER CONFIRMATION ]
US14BLACK 
						

							21V1-L
5 – 14
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O NDITIO N
OUTPUT
AD J U S TME N T
PROCEDURE
I2 C BUS C O NTR O L
O P TIO N S E T UP , BUS S E T UP , S C R E E N, WHITE BALANC E , S UB-BR IG HTNE S S
WINDOW P ATTERN
220 V
CRT S CREEN DIS P LAY
1) LET THE GUN POINT AT W HITE POSITION (AS ATTACH DRAW ING), ADJUSTV01
BUS DATA
UNTILL BRIGHTNESS Y =150 cd/m2
.
NOTE: ALLOWABLE DATA FOR V01 IS >= 90, EVEN Y CANT MATCH THE SPEC
[VOLTAGE CONFIRMATION ]BR IG HTNE S S Y = 1 5 0 c d /m 2
MODEL NAME
SUB-PICTURE
V0 1STEP RANGE0-127
21V1-L
US14
WHITE 
						

							21V1-L
5 – 15
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O NDITIO N
OUTPUT
AD J U S TME N T
P R O C E DUR E
I2C CONTROL
OPTION SET UP, BUS SET UP, VCO ADJ , RF-AGC
US 1 0 C H HALF C O LO R BAR P ATTE R N
220 V
B-AMP TR BAS E (J A410 OR TP 853)
CONFIRRM WITH OSCILLOSCOPE
1)GET IN Y-MUTE FUNCTION BY R/C .
2)ADJUST THEV02
BUS DATA TO GET A W AVEFORM AS BELOW .
[CONFIRMATION ]
MODEL NAME
SUB-TINT
V0 2STEP RANGE0-127
21V1-L
B -AMP BASE (TP 853)MUST BE IN
STEPPING LEVEL 
						

							21V1-L
5 – 16
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O NDITIO N
OUTPUT
AD J U S TME N T
P R O C E DUR E
I2 C BUS C O NTR O L
OPTION SET UP, BUS SET UP, VCO ADJ , RF-AGC,SUB-PICT, SUB-TINT
US 10 CH HALF COLOR BAR PATTERN
220 V
R-AMP TR BAS E (J A401 OR TP 851)
C O N F IR M W IT H O S C ILLO S C O P E
1)SET THEV03
BUS DATA TO GET A W AVEFORM AS BELOW
2)THIS W AVEFORM SHOW S THAT THE 75% W HITE & RED PORTIONS OF COLOR BAR BE AT THE
SAME LEVEL
[CHECKING CONFIRMATION ]
MODEL NAME
S UB-COLOR
V0 3STEP RANGE0-127
21V1-L
WYCy G
100% W HITE
Mg R B 
						

							21V1-L
5 – 17
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O N D IT IO N
OUTPUT
AD J U S TME N T
PROCEDURE
27V26 ± 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 AT ION]
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
						

							21V1-L
5 – 18
AD J U S T ME N T
IT E M
AD J U S T ME N T
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
IN P U T
C O NDITIO N
OUTPUT
AD J U S TME N T
PROCEDURE
BELOW 27.5kV
US E E LE C TR O S TATIC HI-VO LTAG E ME TE R AND F O LLO W THE UL / DHHS S TANDAR D TO MAKE
CORRECTION AND CONTROL.
Bí
AF TE R ALL ADJ US TME NT F INIS HE D.
US 4 CHLIONHEAD(MONOSCOPE PATTERN)
AC 220V, RF INP UT
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 .
HIGH VOLTAGEMODEL21V1-L
MODEL NAME
HIG H VO LTAG E
BíSTEP RANGEBí
21V1-L