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TX-37LX80Y
9 Adjustment
9.1.
Voltage Chart of A Board
Power Name
MAIN_5 V
PANEL_12 V
BT_30 V
24 V
SUB_8 V
STB_7 V
STB_3.3 V
STB_1.8 V
SOUND_18.9 V
9.2.
Voltage Chart of P board
Power Name
MAIN_5 V
PANEL_12 V
BT_30 V
24 V
MAIN_8 V
STB_6 V
STB_3.3 V
SOUND_13.3 V
9.3.
DVCO Adjustment
Measuring instrument
Adjust
Test point
TP1823
TP1815
TP1820
TP1818
TP1821
TP1805
TP1835
TP1837
TP1816
Test point
TPP008
TPP005
TPP015
TPP007
TPP006
TPP013
TPP009
TPP002
Instrument name
1. Remote control composite
output device
Procedure
<DVCO Adjustment>
1.
AVI
PAL/fp = 4.43361875 MHz
Receive the colour bar pattern at AVI composite video.
*Signal generator : PAL/fp = 4.43361875 MHz (ref.)
2. Service 1
Go to "DVCO" under Service 1 by pressing "FA" + "4" on the
remote control.
3. Perform automatic adjustment of DVCO using the blue key.
(About 3 sec.)
*DVCO (START)
The display colour of DVCO shows as black (START) → red
(under adjustment) → black (completion)
Specification
ON
5.0 ± 0.25 V
12.0 ± 0.50 V
30.0 V ± 2.0 V
24.0 ± 1.2 V
8.1 V ± 0.4 V
6.0 V ± 0.25 V
3.30 ± 0.17 V
1.89 ± 0.09 V
13.3 ± 0.6 V
Specification
ON
5.0 ± 0.25 V
12.0 ± 0.50 V
30.0 V ± 2.0 V
24.0 ± 1.2 V
8.0 V ± 0.4 V
6.0 V ± 0.25 V
3.30 ± 0.17 V
13.3 V ± 0.6 V
Connect to
AVI AV input terminal
20
STANDBY
-
-
-
-
-
6.0 V ± 0.25 V
3.30 ± 0.17 V
1.89 ± 0.09 V
-
STANDBY
-
-
-
-
-
6.0 V ± 0.25 V
3.30 ± 0.17 V
-
Remarks
Remarks
RF/PAL
[Another method]
Receive the PAL colour bar
pattern at RF.
EEPROM Address of DVCO
Adjustment value 238 ~ 239
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