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4 Alignments and Adjustments
4-1 General Alignment Instuction
1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specified test equipment or its equivalent.
3. Correct impedance matching is essential.
4. Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV.
When inserting signal markers, do not allow the marker generator to distort test result.
5. Connect the TV only to an DC power source with voltage and frequency as specified on
the backcover nameplate.
6. Do not attempt to connect or disconnect any wire while the TV is turned on.
Make sure that the power cord is disconnected before replacing any parts.
7. To protect aganist shock hazard, use an isolation transform.
LW15M23C 4-1
4 Alignments and Adjustments
4-2 Factory Mode Adjustments
4-2-1 Entering Factory Mode
1. To enter "Service Mode" Press the remote -control keys in this sequence :
- If you do not have Factory remote - control
- If you have Factory remote - control
4-2-2 Factory Mode Tree
1. Calibration
2. Option
3. W/B
4. ADC
5 . V C Ti 0000
6. ACC/ACM
7 . Te s t P a t t e r n 0
8. Bus Stop off
9. Check Sum 0
10. Reset
T- V N C N E U - 0 0 0 7 2 0 0 4 / 0 3 / 0 2
1. Calibration V C Ti
PC
2. Option 1 . Vi d e o M u t e O
2. Auto Power On
3. Panel XGA
4. Inch 15
5. Antenna Osd o ff
6. TTX List/FloF FloF
7. Auto FM On
8. ACC/ACM O
9. Gamma LUT O
10. ESM On
11 . S y s t e m CW
4-2 LW15M23C
4 Alignments and Adjustments
3. W/B(1) R level 128
G level 128
B level 128
R gain 127
G gain 127
B gain 127
g Sub Color 0
g Sub Tint 50
Recall
3. W/B(2)
RF RF
Adjustment item [I nitial Data] [Adjust Data] Remark
Red level ADJ[0~255] 128 128
Green level ADJ[0~255] 128 128 Blue lev el 128 FIX
Blue level FIX[0~255] 128 128
Red Gain FIX[0~255] 128 135
Green Gain ADJ[0~255] 128 135 Red Gain 135 FI X
Blue Gain ADJ[0~255] 128 135 `
gSUB Color FIX[0~255] 0 0
gSUB T int FIX[0~255] 50 50
Factory Recall *A/S : Micom I nitial Data Write
Item Dynamic Cool 1 Remark
M ODE RF [ADJ] COMPONENT 480i COMPONENT 480P PC
External input External input External input External input * W/B connot be
Signal Source ABL Patter n ABL Pattern ABL Pattern ABL Pattern
adjusted in
[MSPG925LT H] [MSPG925L T H] [MSPG925L T H] [M SPG925L TH]
COMPONENT &PC
W/B Process High x=270 + 2, y=270 + 2
_ _ Cannot be adjustment Cannot be adjustment Cannot be adjustment
* Only x,y axes can
Adjustment SPEC L ow x=270 + 2, y=270 + 2
_ _ Cannot be adjustment Cannot be adjustment Cannot be adjustment be adusted in
High & Low Light
High x=270 + 10, y=270 + 10 , Y=22. 0
_ _ [ FL] x=270 _ 20, y=270 + 20
_
+ x=270 + 20, y=275 + 20
_ _ x=250 + 30, y=260 + 30
_ _
W/B
SPEC L ow x=270 + 10, y=270 + 10 , Y=0. 3 0. 1 [ FL]
_ _ _
x=260 + 20, y=260 + 20
_ x=280 + 20, y=290 + 20
_ _ x=250 + 30, y=255 + 30
_ _
LW15M23C 4-3
4 Alignments and Adjustments
4. ADC V C Ti PC
R o ff s e t 53 R o ff s e t 66
G o ff s e t 43 G o ff s e t 63
B o ff s e t 47 B o ff s e t 51
R gain 0 125 R gain 0 54
R gain 1 1 R gain 1 1
G gain 0 122 G gain 0 62
G gain 1 1 G gain 1 1
B gain 0 134 B gain 0 66
B gain 1 1 B gain 1 1
5 . V C Ti R Drive 192 RF AGC 2
G Drive 192 Vpeaking 6
B Drive 192 CTI Gain 15
Sub Contrast 56 CTI Coring 5
Sub Bright 128 LMIXOFS 2
Sub Sharp 10 PKCF 3
Sub Color 0 AGCADJ1 43
S u b Ti n t 50 LT I G a i n 15
Sub Coring 20
6. ACC/ ACM Y Max D 7 Up Stant 40
Y Scl Thr 64 Low Sn Thr 60
Y Scl A 5 Up Sn Thr 0
Y Scl B 0 Y Min 10
A Ctrl 0 Y Max 255
A Snslp 8 Ym Div Slp 128
T Dixel 12 Fr Age 1
Lower End 80 Fr App 0
Mid Start 30 Esm Ctrl 127
Mid End 100
4-4 LW15M23C
4 Alignments and Adjustments
7. Test Pattern ( Test Pattern of VCTi)
1) VCTi
2) Toshiba
3) Gray Bar
4) Gray
5) Green
6) Color Bar
7) Cross
8. Bus Stop
- Bus stop is used data communication.
9. Chcek Sum
- Display the current check sum size of the MICOM.
10. Reset
- Initializes the data in the MICOM.
11. T-VNCNEU-0007 2004/03/02
- Display the MICOM program version.
4-2-3 White Balance
High Low
285, 295 285, 295
x, y x, y
LW15M23C 4-5
4 Alignments and Adjustments
Memo
4-6 LW15M23C