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ADJUSTMENT PROCEDURE
Item / Preparation
+B SET-UP
4.
Receive a Window pattern.
5.
Set the controls :-
Brightness
Minimum
Contrast
Minimum
Volume
Minimum
CUT OFF
1. Receive a Window pattern.
2. Degauss the tube externally.
3. Set the TV into Service Mode 1.
4. Select Sub brightness mode.
SELF CHECK
Self-Check is used to automatically check the bus lines and hexadecimal code of the TV set.
To get into Self-Check mode press the down (-/v) button on the customer controls at the front of the TV set, at the same time
pressing the STATUS button on the remote control, and the screen will show: -
MEM
:
O.K.
GC1
:
O.K.
GC2
:
O.K.
VDU
:
O.K.
CIP
:
O.K.
RGB
:
O.K.
AVSW
:
O.K.
TUN1
:
O.K.
TUN2
:
O.K.
DAC1
:
O.K.
MSP
:
O.K.
DOLBY
:
O.K.
CODEC
:
O.K.
DAC2
:
O.K.
DAC3
:
O.K.
To exit Self-Check, switch off the TV set at the power button.
If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".
All manuals and user guides at all-guides.com
Adjustment/Confirmation
Confirm the following voltages.
A - Board
A1 Pin2
A1 Pin12
A1 Pin16
A2 Pin15
A2 Pin6
A3 Pin4
A3 Pin2
D – Board
TPD8-GND
TPD9-TPD11
TPD10-GND
TPD13-GND
TPD15-GND
TPD32-GND
C864-GND
D2 Pin15-GND
To adjust Cutoff connect an oscilloscope to the Blue cathode. Adjust "Cutoff"
value using the "Yellow" and "Blue" buttons until the black level is 170V ± 5V,
press "STR" to store the value. Remove the oscilloscope.
Select Highlight/Lowlight mode press "5" to collapse the screen and adjust the
screen "VR" until the display is just visible, press "5" to return to service mode.
Using the "Yellow" and "Blue" buttons adjust until optimum picture white
balance is achieved, press "STR" to store the value. Select Sub Brightness
mode and adjust until optimum picture brightness is achieved.
Sum :
TX-28PB50
OPTION 1 :
0D
00
OPTION 2 :
OPTION 3 :
13
OPTION 4 :
10
OPTION 5 :
00
OPTION 6 :
50
OPTION 7 :
00
OPTION 8 :
41
OPTION 9 :
85
80
OPTION 10:
OPTION 11:
19
OPTION 12:
28
OPTION 13:
FA
Check :
01
7.5
±
0.5V
IC1252 Pin2
-20
±
0.5V
IC1251 Pin3
20
±
0.5V
IC3302 Pin3
30
±
0.5V
IC2707 Pin3
15
±
0.5V
L2707
15
±
0.5V
L2704
-15
±
0.5V
L2716
L2717
7.5
±
0.5V
38.5
±
2V
15.5
±
1V
14.5
±
1V
144.8 ±
1V
209
±
10V
-15.5 ±
1V
31
±
1V
Factory use only
****
TX-32PB50/PB50N
0D
00
13
10
00
50
00
41
85
80
19
08
FA
E1
5
2.5 ±
0.25V
3.3
+0.3 / -0.2V
12
±
0.6V
8
±
0.4V
(IC2708) 9
±
0.4V
(IC2706) 5
±
0.2V
(IC2705) 3.3 ±
0.2V
(IC2709) 3.3 ±
0.2V
TX-36PB50/PB50N
0D
00
13
10
00
50
00
41
85
80
19
48
FA
21
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