FUNAI LCD-C1504, Service Manual

Page: 19 / 67

6-2 L4102EA
2. +B Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
the unit does not operate correctly.
Note: TP401(+B), TP300(GND), VR649 --- Main CBA
1. Connect DC Volt Meter to TP401 and
TP300(GND).
2. Adjust VR649 so that the voltage of TP401
b13.0
±
0.3V DC [LCD-C1504] or
+21.0
±
0.3V DC [LCD-C2004].
S-BRT(NTSC)
MENU
→
8
134 134
S-CNT(NTSC) 172 174
S-CLR-R(NTSC) 78 70
S-CLR-B(NTSC) 78 70
S-TNT(NTSC) 148 148
S-SHR(NTSC) 143 143
C-BRT(NTSC)
MENU
→
9
134 134
C-CNT(NTSC) 122 132
C-CLR-R(NTSC) 156 154
C-CLR-B(NTSC) 156 154
C-TNT(NTSC) 148 148
C-SHR(NTSC) 143 143
BRIGHT 0 0 0
NORMAL 0 40 65
DARK 0 95 98
COR(C/D/S-1) VOL.
p
→
1 131 131
COG(C/D/S-1) VOL.
p
→
2 131 131
COB(C/D/S-1) VOL.
p
→
3 131 131
DR(C/D/S-1) VOL.
p
→
4 145 145
DG(C/D/S-1) VOL.
p
→
5 143 143
DB(C/D/S-1) VOL.
p
→
6 140 140
SBR(C/D/S-1) VOL.
p
→
7 0 0
SBB(C/D/S-1) VOL.
p
→
9 0 0
C-COR(C/D/S-2) VOL.
p
→
1 131 131
C-COG(C/D/S-2) VOL.
p
→
2 131 131
C-COB(C/D/S-2) VOL.
p
→
3 131 131
C-DR(C/D/S-2) VOL.
p
→
4 145 145
C-DG(C/D/S-2) VOL.
p
→
5 143 143
C-DB(C/D/S-2) VOL.
p
→
6 140 140
C-SBR(C/D/S-2) VOL.
p
→
7 0 0
C-SBB(C/D/S-2) VOL.
p
→
9 0 0
7F
VOL.
p
FF FF
LAST POWER OFF OFF
SYSTEM SECAM-L SECAM-L
NCM ON ON
ASPECT OFF OFF
RUSSIAN OFF OFF
ITEM
BUTTON
(on the
remote
control)
DATA VALUE
LCD-
C1504
LCD-
C2004
Test Point Adj. Point
TP401 (+B)
TP300 (GND)
VR649
M. EQ. Spec.
DC Voltmeter
+13.0
±
0.3V DC [LCD-C1504]
+21.0
±
0.3V DC [LCD-C2004]